1. Technical Field
The present invention relates generally to seaming machines. More particularly, the invention relates to a seaming machine and method of producing a seeming machine. Specifically, the invention relates to a seeming machine with a swing arm that is configured to be positioned in a plurality of positions and that has a detachable fabric table.
2. Background Information
A larger sheet of material is created by joining two sheets of material together at their seams. Typically, a first segment of sheet material is laid on a table or other work surface and a second segment of sheet material is positioned above the first segment with their edges generally aligned so that a seaming device moves along the aligned edges to form a seam along the length of the two sheet segments. This typically results in a two-segment sheet which is roughly twice as large as each of the individual segments. In order to form larger sheets of material, additional segments of sheet material must be sequentially seamed together. This seaming process may be achieved by various seaming devices depending on the material from which the sheets are formed and the application for which the product will be used. For example, seams may be formed using plastic welders, ultrasonic welders, radio frequency (RF) welders, adhesive or glue seaming devices or sewing devices amongst others.
As will be appreciated, the larger the sheet becomes, the more unwieldy it is to handle. The standard practice for adding one or more additional segments of sheet material to the two-segment sheet is to slide one of the sheet segments off of a table or work surface and move the non-seamed edge of the other sheet segment adjacent the side of the table along which the seaming device is positioned. Especially during the formation of larger sheets of material such as relatively heavy tarps, the movement of these sheet segments and re-positioning thereof can be difficult for a single operator of the seaming device. Once the non-seamed edge of the second segment of sheet material is properly positioned, a third segment of sheet material is positioned adjacent the second segment and the edges of the second and third segments are then seamed together.
A table or work surface may be helpful to manipulated sheets of material seemed to produce a generally flat result. However, sliding material on a seaming machine table may make it difficult to produce cylindrical, elliptical, oval, spherical, and other curved shapes. Additionally, after each segment of sheet material is seamed to the previous one, additional sheet material must be moved off of the table or work surface and gradually piles up on the floor, often in disarray. Furthermore, material hanging off of the table or an elevated work surface pulls on the material atop the table and adds to the difficulty of aligning the material for a subsequent seaming operation. In short, the process is relatively time consuming and labor intensive. A better way of joining fabric is desired.
The present invention provides a welding machine comprising: a welding machine body; a welding arm with an end extending away from the welding machine body; a first roller rotatably mounted on the welding arm end; a swing arm pivotally attached to the welding machine body and having a roller end which is movable between first and second positions; a second roller rotatably mounted on the roller end; a bracket attached to the swing arm; a first connection between the bracket and the welding machine body to mount the swing arm in the first position; and an alternate second connection between the bracket and the welding machine body to mount the swing arm in the second position when the bracket and welding machine body are not connected via the first connection.
The present invention also provides a welding machine comprising: a welding machine body; a welding arm with an end extending away from the welding machine body; a first roller rotatably mounted on the welding arm end so that the first roller is rotatable relative to the welding arm about a first axis; a swing arm which is attached to the welding machine body and has a roller end which is movable between first and second positions wherein the swing arm is rotatable relative to the welding machine body about a second axis which is parallel to the first axis; a second roller rotatably mounted on the roller end; wherein the second roller is adjacent the first roller when the swing arm is in the first position so that when the swing arm is in the first position, the first and second rollers are configured to apply pressure to fabric and to one another to pull the fabric when the fabric passes between the first and second rollers; and the second roller is adjacent the first roller when the swing arm is in the second position so that when the swing arm is in the second position, the first and second rollers are configured to apply pressure to fabric and to one another to pull the fabric when the fabric passes between the first and second rollers; and wherein the second roller contacts the first roller in the first and second positions.
The present invention further provides a welding machine comprising: a welding machine body having a front and a back; a welding arm with an end extending away from the welding machine body; a first roller rotatably mounted on the welding arm end; a swing arm which has a roller end and is pivotally attached to the welding machine body so that the swing arm pivots forward toward the front of the welding machine body and rearward toward the back of the welding machine body whereby the roller end is configured to move between a first position and a second position; wherein the swing arm is U shaped as viewed from the front of the machine body; and a second roller rotatably mounted on the roller end.
One or more preferred embodiments that illustrate the best mode(s) are set forth in the drawings and in the following description. The appended claims particularly and distinctly point out and set forth the invention.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate various example methods, and other example embodiments of various aspects of the invention. It will be appreciated that the illustrated element boundaries (e.g., boxes, groups of boxes, or other shapes) in the figures represent one example of the boundaries. One of ordinary skill in the art will appreciate that in some examples one element may be designed as multiple elements or that multiple elements may be designed as one element. In some examples, an element shown as an internal component of another element may be implemented as an external component and vice versa. Furthermore, elements may not be drawn to scale.
Similar numbers refer to similar parts throughout the drawings.
Before describing the figures in detail, the figures are introduced that highlight why the welding machine 10 is an improvement over traditional welding machines for a variety of reasons. For example,
In the preferred embodiment, a fabric table 7 may be easily attached to and removed from the welding machine 10.
As previously mentioned, the swing arm 1, is generally U-shaped as shown in
A U-shaped swing arm 1 that is also movable allows for a variety of materials to welding by the welding machine. For example, when the post arm 3 is vertical and the fabric table is not attached, the welding machine 10 can weld round shaped fabric that can be draped over the top of the post arm 3 as shown in
Returning to
In general, the base 18, welding machine body 20 and the support beam 24 form a frame of the welding machine 10. In this preferred embodiment, this frame is connected together to form a rigid steel frame. The swing arm 1 may also be fabricated out of steel components to ensure the welding machine 10 is solid and durable. The swing arm 1 may be partially fabricated out of steel tubular sections of pipe. The post arm 3 section of the swing arm 1 may be fabricated out of an elongated section of steel with a rectangular cross-section.
In the preferred embodiment, the welding machine 10 includes a control system with a graphical user interface (GUI) 28. The GUI 28 is positioned in the support beam 24 to allow an operator of the welding machine 10 to easily see and enter values into the GUI 28. The GUI 28 allows an operator of the welding machine 10 to select a temperature of the heating system 12, select a roller speed of rollers used to pull fabric through the welding machine 10, as well as other settings. The control system can store parameter settings for multiple configurations of the welding machine 10 so that the parameters do not need to be completely re-entered each time a particular configuration is needed. The GUI 28 may present prompts in one of several different languages that is selected by an operator. An emergency stop button 30 and a power on/of button 32 may be located adjacent the GUI 28. One or more foot peddles 34 may be attached to the welding machine 10 to allow an operator to control when heat is applied or when rollers are driven to propel fabric through the welding machine 10.
Adjacent the heat system 12 and also mounted on the first end 25 of the support beam 24 are two rollers 38, 39 that are best seen in
The first end 25 of the support beam 24 is also configured to be fitted with various guides (not shown) to assist an operator of the welding machine 10 with aligning two sheets of material to be welded together. The different guides can assist an operator with making a variety of specific seams. For example, the welding machine 10 is configured to be fitted with guides to create weld hems, overlaps, hem with rope, hem with pocket, as well as other seams.
Example methods may be better appreciated with reference to flow diagrams. While for purposes of simplicity of explanation, the illustrated methodologies are shown and described as a series of blocks, it is to be appreciated that the methodologies are not limited by the order of the blocks, as some blocks can occur in different orders and/or concurrently with other blocks from that shown and described. Moreover, less than all the illustrated blocks may be required to implement an example methodology. Blocks may be combined or separated into multiple components. Furthermore, additional and/or alternative methodologies can employ additional, not illustrated blocks.
In another embodiment, the method attaches a fabric table to the fabric welding machine. The fabric welding table has a flat surface that aids in the movement and positioning of fabric to be connected. The fabric table is attached to the fabric welding machine by sliding one or more grooves in the fabric table onto one or more knobs on the fabric welding machine. The fabric table is configured to attach to the swing arm by pushing one or more connectors through the fabric table and attaching the one or more connectors into the swing arm.
A person of ordinary skill in the art will realize that even though specific numbers of devices such as screws or bolts are shown in the figures, that in other embodiments different numbers (e.g., less or more) of the same device may be used. A person of ordinary skill in the art will also realize that even though specific devices such as fastening devices (e.g., bolts) are shown in the figures that other devices may be used as fastening devices. For example, in one embodiment one screw may be used to attach the fabric table 7 to the post arm 3 rather than the two screws 65 shown in
In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be implied therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed. Therefore, the invention is not limited to the specific details, the representative embodiments, and illustrative examples shown and described. Thus, this application is intended to embrace alterations, modifications, and variations that fall within the scope of the appended claims.
Moreover, the description and illustration of the invention is an example and the invention is not limited to the exact details shown or described. References to “the preferred embodiment”, “an embodiment”, “one example”, “an example”, and so on, indicate that the embodiment(s) or example(s) so described may include a particular feature, structure, characteristic, property, element, or limitation, but that not every embodiment or example necessarily includes that particular feature, structure, characteristic, property, element or limitation. Furthermore, repeated use of the phrase “in the preferred embodiment” does not necessarily refer to the same embodiment, though it may.
This application is a continuation of U.S. patent application Ser. No. 12/577,539, filed Oct. 12, 2009, now U.S. Pat. No. 8,272,420; the disclosure of which is incorporated herein by reference.
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Number | Date | Country | |
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20120312479 A1 | Dec 2012 | US |
Number | Date | Country | |
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Parent | 12577539 | Oct 2009 | US |
Child | 13590235 | US |