Patent Application
20250084571
The present disclosure relates to a knitting part, and in particular to a knitting action parts structure comprising a channel space and related parts: a needle walls assembly, a cams assembly, and knitting tools.
In common knitting machines such as circular knitting machines and flat knitting machines, the knitting action is driven by the guide butts of knitting tools, which move back and forth along the grooves in the guiding groove section of cams, causing the knitting tools positioned within the needle walls assembly to move synchronously and interact with each other, thereby enabling the interlacing of yarns to produce fabrics.
Among the numerous defects caused by knitting action, taking circular knitting machines as an example, adverse effects on the lifespan and precision of related parts due to high temperatures, and the fabrics often suffer contamination from residues like oil and lint, have been the two major challenges that the industry has consistently faced; WO2020079493A1 describes various types of fabric defects, such as contamination defect by oil, needle and sinker defect, and contamination by other fibres.
TWI303284B reveals pressurized air passing through multiple nozzles to forcefully blow towards the needle cylinder, needle grooves, needles, and the cams assembly, achieving the effects of removing lint and dissipating heat.
EP2067885B1 reveals a combined needle bed with fluid channels to remove accumulated dirt and prevent excessive lubricant from contaminating the fabrics.
JP2000-8258A reveals the provision of a surrounding cover plate outside the cams assembly to prevent external lint from entering the knitting action parts, achieving a cooling effect through blower operation.
CN108026676B reveals a loop-forming method, device, and system component where paired knitting tools are positioned in a groove of the needle walls assembly that is wider than conventional designs. Utilizing the timing difference between adjacent knitting tools, or employing materials with extremely low friction and/or self-lubricating properties such as graphite or PTFE as spacers, achieves self-cleaning and heat-dissipating effects.
The aforementioned technologies achieve contamination reduction and heat dissipation effects by adding operational equipment or more complex production processes, thereby increasing production costs and energy consumption.
EP3947799B1 reveals a shape design of another part of knitting tools, where dirt in the grooves near the loop-forming zone is pushed towards the inner edge and out of the needle bed, with the heights of the knitting tools and the needle walls assembly being equal. JP2022085768A shows a dual sinker structure in which the height of the knitting tools part is greater than that of the needle walls assembly part.
TWI639742B reveals that the surface extending from the front top to the rear top of the conventional needle walls assembly is parallel to the base surface serving as the height reference line on the other side. WO2022128297A1 shows that the top and bottom surfaces of the knitting tools part and the cams assembly part are parallel to each other, with equal height at both front and rear ends. EP4095297A1 shows a conventional design where the cams assembly part is parallel to both the needle walls assembly part and the knitting tools part, forming a channel spaces part with mutually parallel sides.
Based on fabric quality requirements and production capacity needs, and considering the physical properties of thermal expansion, the channel spaces part is currently designed with a regular height of approximately 0.20 mm. The high temperatures generated by the knitting action inertia continuously accumulate within this narrow space.
CN1974903A describes that the regular clearance of a channel spaces part is generally reduced to nearly zero, and pressurized air is injected into the space to achieve cleaning and cooling effects.
CN201678816U reveals that the lubricant holes within the conventional design of cams guiding groove can also serve as air passages, injecting air from there to achieve cooling effects for the channel space and the related parts.
The aforementioned technologies of injecting compressed air into the channel space not only increase energy consumption but also tend to cause the related parts introducing splashed oil contaminants into the fabrics.
JP4454634B2 reveals the contact points and surfaces where the knitting action inertia leads to frictional heating between a knitting tools part and the needle walls assembly part.
After the lubricant is released from the cams guiding groove, due to the aforementioned conventional designs where the heights of the front and rear ends of the needle walls assembly part are equal, with the knitting action inertia, the knitting tools experience parallel friction on the needle walls surface or vertical friction of their butts against the side corners of the needle walls. This causes the lubricant to be pulled and flow back and forth on these surfaces, continuously accumulating and accompanied by other contaminants such as worn fibres moving along the knitting tools part towards the loop-forming zone, resulting in fabric contamination.
TWI560331B reveals the pathway of lubricant after released and improves the shape design of knitting tools to block the movement of contaminants towards the loop-forming zone.
For the purpose of enhancing clarity, precision, and ease of reference in the following description, a specific formatting convention has been adopted for technical terms and structural elements. Key components and their associated reference numbers are presented using initial capital letters and in a direct, concatenated format (e.g., “Channel Spaces Part Front End (11)”) rather than in standard grammatical structure. This formatting convention applies consistently throughout the document for all relevant technical terms and structural elements.
The present invention relates to a knitting action parts structure that is based on the aforementioned technologies, regular designs, and knitting action inertia: When manufacturing related parts, no additional equipment or complex processing procedures are required to improve product quality; When using knitting machines to produce fabrics, no extra energy-consuming devices are required to prevent fabrics contamination by oil stains, lint, and other contaminants, while optimizing heat dissipation performance that helps reduce waste caused by defective products and extends the service life of related parts.
To achieve the aforementioned objectives, the present invention relates to a knitting action parts structure comprising: a channel space (1) and related parts including: a needle walls assembly (2), a cams assembly (3), and knitting tools (4), wherein: said knitting tools (4) are positioned within said needle walls assembly (2), facing said cams assembly (3) to form said channel space (1). At least one channel spaces part (10) is formed by a cams assembly part (30) facing a needle walls assembly part (20) and a knitting tools part (40), said parts being defined by a front end proximate to a loop-forming zone and a rear end distal from said loop-forming zone, excluding a cams guiding groove section (33), a knitting tools guide butts segment (43), and corresponding portions of a knitting tools part maximum height (H4) and minimum height (H40), a space extending from a channel spaces part front end (11) to a rear end (12) forms a gradually expanding space with non-parallel sides, and a height difference defined as a channel spaces part rear height (H12) minus a front height (H11) is at least 0.06 mm.
In the following embodiments, at least one of the related parts exhibits a height difference between the front end and the rear end, allowing the two sides of a channel spaces part being non-parallel from the front end to the rear end.
In a first embodiment, the present disclosure combines a needle walls assembly part with a conventional cams assembly part and a conventional knitting tools part to form a channel spaces part, thereby increasing resistance along the contaminant pathway and making it more difficult for contaminants to move towards the loop-forming zone. Additionally, the gradually expanded space achieves proper airflow guidance and improves heat dissipation effect.
In a second embodiment, the present disclosure combines a cams assembly part with a conventional needle walls assembly part and a conventional knitting tools part to form a channel spaces part, thereby reducing reverse blockage along the contaminant pathway and making it easier for contaminants to move downward away from the loop-forming zone. Additionally, the gradually expanded space achieves proper airflow guidance and improves heat dissipation effect.
In a third embodiment, the present disclosure combines a knitting tools part with a conventional needle walls assembly part and a conventional cams assembly part to form a channel spaces part, thereby increasing reverse assistance along the contaminant pathway and making it easier for contaminants to move outward away from the loop-forming zone. Additionally, the gradually expanded space achieves proper airflow guidance and improves heat dissipation effect.
In a fourth embodiment, each channel spaces part is formed by the knitting action parts structure of the present disclosure described in the preceding embodiments. In addition to the significant self-cleaning effect, these larger gradually expanded spaces further achieving more notable proper airflow guidance and more optimized effective heat dissipation compared to the preceding embodiments.
With reference to
The present invention includes the following elements.
A first embodiment shown in
The knitting tools 4 are designed as needles that include two guide butts segment 43, each corresponding to a cams guiding groove section 33 respectively, the knitting tools part 40 encompasses a maximum height H4 and a minimum height H40. in the conventional knitting tools part 40, a front height H41 is equal to the rear height H42, excluding the guide butts segment 43, and related portions of maximum height H4 and minimum height H40, the surface extending from the front top 41 to the rear top 42 remains parallel to the opposing knitting tools part baseline 401.
The cams assembly 3 comprising a slider 35 connecting cams 34 and a cams box 36, the cams assembly part front top 31 and the rear top 32 are formed by the two said cams 34, which respectively correspond to the needle walls assembly part front top 21 and the rear top 22. in the conventional cams assembly part 30, a front height H31 is equal to the rear height H32, and the surface extending from the front top 31 to the rear top 32 remains parallel to the opposing cams assembly part baseline 301.
The needle walls 23 for the needle walls assembly 2 incorporating the insert structure from twi639742B to ensure precise dimensions and a smoothly finished outer surface, thus eliminating the need for grinding and polishing procedures after assembly. In this needle walls assembly part 20, the front height H21 is not equal to the rear height H22, and the surface extending from the front top 21 to the rear top 22 deviates non-parallel to the opposing needle walls assembly part baseline 201. herein, the disclosed height difference is 0.08 mm, which is achieved either through the shape design of needle walls 23 embodied by a general manufacturing process such as punch press processing, or through the height differential design between a needle walls front datum plane 231 and the rear datum plane 232 embodied by a general manufacturing process such as lathe processing.
Under the aforementioned conditions during knitting action, when a knitting tools front edge 4A aligns with the needle walls assembly front edge 2A, the guide butts segment 43 is positioned relatively closer to the cams guiding groove section rear end 332. if the spaces part front height H11 equals a regular height H10 of 0.20 mm, then the rear height H12 measures 0.28 mm. This indicates that the space from a spaces part front end 11 to the rear end 12 gradually expands due to its non-parallel sides, where the height difference, measured as the spaces part rear height H12 minus the front height H11, amounts to 0.08 mm.
The present disclosure introduces a parts structure for knitting action, where the inclined surface of the needle walls assembly part 20 increases forward resistance along the contaminant pathway, making it more difficult for contaminants to approach the loop-forming zone. Additionally, it provides backward assistance along the contaminant pathway, utilizing the inertial friction during knitting action to guide contaminants towards lower surfaces, making it easier for them to stay away from the loop-forming zone. The pressure difference formed by the height variation at the two ends of the gradually expanded space ensures proper airflow guidance, thereby achieving effective heat dissipation.
A second embodiment shown in
The knitting tools 4 are designed as needles that include four guide butts segment 43, each corresponding to a cams guiding groove section 33 respectively, the knitting tools part 40 encompasses a maximum height H4 and a minimum height H40. in the conventional knitting tools part 40, a front height H41 is equal to the rear height H42, excluding the guide butts segment 43, and related portions of maximum height H4 and minimum height H40, the surface extending from the front top 41 to the rear top 42 remains parallel to the opposing knitting tools part baseline 401.
The needle walls 23 for the needle walls assembly 2 incorporating a conventional insert structure that requires grinding procedures after assembly to achieve a uniform outer surface, and the needle walls assembly part front height H21 is equal to the rear height H22, and the surface extending from the front top 21 to the rear top 22 remains parallel to the opposing needle walls assembly part baseline 201.
The cams assembly 3, incorporating general manufacturing processes such as locking the cams 34 to the cams box 36, or inserting a slider 35 into a cams box slider slot 360 on one side and a cams slider slot 340 on the other side to lock the cams 34, thereby facilitates adjustment and movement of the cams assembly part 30 as a whole.
This embodiment comprises four cams 34 forming the cams assembly part 30 with a cams assembly part front top 31 and the rear top 32 corresponding to a needle walls assembly part front top 21 and the rear top 22, respectively. A cams assembly part front height H31 is not equal to the rear height H32, and the surface extending from the front top 31 to the rear top 32 is non-parallel to the opposing cams assembly part baseline 301. herein, the disclosed height difference is 0.10 mm, which is achieved by a stepped height difference design from the cams slider front height H351 to the rear height H352 corresponding to each cams 34 respectively, realized through a general manufacturing process such as powder metallurgy.
Under the aforementioned conditions during knitting action, when a knitting tools front edge 4A aligns with the needle walls assembly front edge 2A, the guide butts segment 43 is positioned relatively closer to the cams guiding groove section rear end 332. if the spaces part front height H11 equals a regular height H10 of 0.20 mm, then the rear height H12 measures 0.30 mm. This indicates that the space from a spaces part front end 11 to the rear end 12 gradually expands due to its non-parallel sides, where the height difference, measured as the spaces part rear height H12 minus the front height H11, amounts to 0.10 mm.
The present disclosure introduces a parts structure for knitting action, where the stepped height difference of the cams assembly part 30 reduces revise obstacles along the contaminant pathway to prevent contaminants from adhering to and accumulating on the lower cams 34 as they naturally move downward. Additionally, the pressure difference formed by the height variation at the two ends of the gradually expanded space ensures proper airflow guidance, thereby achieving effective heat dissipation.
A third embodiment shown in
The knitting tools 4 are designed as sinkers that include one guide butts segment 43 which corresponding to a cams guiding groove section 33 respectively, the knitting tools part 40 encompasses a maximum height H4 and a minimum height H40. a knitting tools part front height H41 is not equal to the rear height H42, excluding the guide butts segment 43, and related portions of maximum height H4 and minimum height H40, the surface extending from the knitting tools part front top 41 to the rear top 42 deviates non-parallel to the opposing knitting tools part baseline 401, herein the disclosed height difference is 0.06 mm, which is achieved through the shape design of knitting tools 4 embodied by a general manufacturing process such as punch press processing.
The needle walls assembly 2 is machined on a lathe to form the needle walls 23 by cutting grooves. In the conventional needle walls assembly part 20, a front height H21 is equal to the rear height H22, and the surface extending from the front top 21 to the rear top 22 remains parallel to the opposing needle walls assembly part baseline 201.
The cams assembly 3 comprising a cam 34 directly secured onto a cams box 36, with the cams assembly part front top 31 and rear top 32 corresponding to the needle walls assembly part front top 21 and rear top 22, respectively. In the conventional cams assembly part 30, a front height H31 is equal to the rear height H32, and the surface extending from the front top 31 to the rear top 32 remains parallel to the opposing cams assembly part baseline 301.
Under the aforementioned conditions during knitting action, when a knitting tools front edge 4A aligns with the needle walls assembly front edge 2A, the guide butts segment 43 is positioned relatively closer to the cams guiding groove section rear end 332. If the spaces part front height H11 equals a regular height H10 of 0.20 mm, then the rear height H12 measures 0.26 mm. This indicates that the space from a spaces part front end 11 to the rear end 12 gradually expands due to its non-parallel sides, where the height difference, measured as the spaces part rear height H12 minus the front height H11, amounts to 0.06 mm.
The present disclosure introduces a parts structure for knitting action, where the inclined surface of the knitting tools part 40 increases forward resistance along the contaminant pathway, making it more difficult for contaminants to approach the loop-forming zone. Additionally, it provides backward assistance along the contaminant pathway, utilizing the inertial friction during knitting action to guide contaminants towards lower surfaces, making it easier for them to stay away from the loop-forming zone. The pressure difference formed by the height variation at the two ends of the gradually expanded space ensures proper airflow guidance, thereby achieving effective heat dissipation.
A fourth embodiment shown in
Under the aforementioned conditions during knitting action, when the knitting tools 4 move from the rear to the front, causing the knitting tools front edge 4A to move away from the needle walls assembly front edge 2A or another needle walls assembly front edge 2B, the guide butts segment 43 moves relatively closer to the cams guiding groove section front end 331, and the knitting tools part 40 also moves relatively. If the spaces part front height H11 equals a regular height H10 of 0.20 mm, then the rear height H12 varies from 0.26 mm to 0.38 mm in different embodiments, this indicates that the spaces from a spaces part front end 11 to the rear end 12 gradually expand due to their non-parallel sides, where the height difference, measured as the spaces part rear height H12 minus the front height H11, varies from 0.06 mm to 0.18 mm.
In contrast to the three previous embodiments, the present disclosure introduces a parts structure for knitting action, where the inclined surfaces of the needle walls assembly part 20 and the knitting tools part 40 optimize the forward resistance of contaminants toward the loop-forming zone and provide backward assistance for them away from there. The inertial friction during knitting action accelerates the removal of contaminants, achieving a self-cleaning effect. Additionally, when combined with the cams assembly part 30, it forms a larger expanding space with a greater pressure difference, further achieving more notable proper airflow guidance and more optimized effective heat dissipation.
The aforementioned figures are production diagrams commonly adopted within the industry and comprehensible to a person having ordinary skill in the art. Any modifications or alterations made in light of the present disclosure are considered to fall within the scope and intent of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 112134388 | Sep 2023 | TW | national |
