Patent Application
20230219302
When molding and vulcanizing rubber products, it is usually necessary to fill the mold cavity with an excessive amount of rubber to ensure that the products will not lack in rubber, but this inevitably leads to the generation of vulcanization margins. When we use rubber products, in order to ensure the performance and appearance quality of the products, it is necessary to remove the margins generated during mold molding and vulcanization. At present, there are several methods for removing margins that are commonly used in the industry as follows. 1. Manual removal, that is, a tool with a cutting edge or a friction surface with a certain roughness is used to manually remove margins. This method is a traditional method for removing margins that has most widely used, with such an advantage as enable to remove a variety of regular and irregular rubber product margins and such a disadvantage as not stabilize the removal accuracy due to human factors, and lower the removal efficiency. 2. Frozen deburring art, that is, multiple pieces of rubber products to be removed with margins are put in a low temperature environment to make the margins brittle, so as to remove the margins of the rubber products through a physical process applying a working medium that performs a function of friction or introducing a fine-grained spray medium, with such an advantage as improve the margin removal efficiency and such a disadvantage as difficultly control the removal accuracy, that is, while a large removal force inevitably causes more or less influence on the appearance quality of the base material, a small removal force affects the margin removal efficiency.
In order to achieve the above object, the present invention provides the following technical solutions:
A device for automatically removing margins of rubber sealing rings in high-accuracy, comprising a vibrating plate, an installation platform, a motor assembly and a core rod, wherein
Optionally or preferably, the vibrating plate includes a top disc, a bottom disc and a base, which are arranged in order from top to bottom, and a material flow channel is arranged on the top disc.
Optionally or preferably, the motor assembly includes a motor platform, a motor connecting apparatus and a motor body; the motor platform is arranged in the opening of the installation platform; the motor body is positioned below the motor platform, and installed and fixed on the installation platform by means of the motor connecting apparatus, which is composed of two L-shaped connecting pieces.
Optionally or preferably, the core rod includes, from top to bottom, an upper zone tapered to some extent, an outer margin-removing zone with an outer diameter slightly larger than the inner diameters of products, an inner margin-removing zone with a certain roughness and a lower zone, a core rod magnet is arranged inside the lower zone and used to cooperate with the motor magnet.
Optionally or preferably, the clamping apparatus includes a first Z-axis sliding rail, a first X-axis sliding rail, a clamper mounting seat, a clamping cylinder connecting plate and a clamping cylinder;
Optionally or preferably, the auxiliary apparatus includes an auxiliary sliding rail, an auxiliary head connecting plate, an auxiliary head, an electromagnetic apparatus, a rotary disc and an auxiliary apparatus mounting seat;
Optionally or preferably, the margin-removing apparatus includes a second Z-axis sliding rail, a second X-axis sliding rail, a second X-axis sliding block, a grinding head connecting block, an upper grinding head, a lower grinding head, a force sensor, and a margin-removing installation seat;
The present invention further provides a method for removing margins of rubber sealing rings based on the device for automatically removing margins of rubber sealing rings in high-accuracy, comprising the following steps:
Wherein: 1- vibrating plate; 101- top disc; 102- material flow channel; 103- bottom disc; 104- base; 2- product-conveying belt; 3- buffer conveyor belt; 4- installation platform; 401- first baffle; 402- second baffle; 5- motor assembly; 501- motor platform; 502- motor magnet; 503- motor connecting apparatus; 504- motor body; 6- clamping apparatus; 601-first Z-axis motor; 602-first Z-axis sliding rail; 603-first X-axis sliding rail; 604- first X-axis motor; 605- first X-axis sliding block; 606- clamper mounting seat; 607- clamping cylinder connecting plate; 608- clamping cylinder; 7- auxiliary apparatus; 701- auxiliary motor; 702- auxiliary sliding rail; 703- auxiliary head connecting plate; 704- auxiliary head; 705- electromagnetic apparatus; 706- rotary disc; 707- auxiliary apparatus mounting seat; 8- margin-removing apparatus; 801- second Z-axis motor; 802- second Z-axis sliding rail; 803- second X-axis motor; 804- second X-axis slide rail; 805- second X-axis sliding block; 806- grinding head connecting block; 807- upper grinding head; 808- lower grinding head; 809- force sensor; 810- margin-removing installation seat; 9- the core rod; 901- upper zone; 902- outer margin-removing zone; 903- inner margin-removing zone; 904- lower zone; 905- core rod magnet; 10- product-collecting box; 11- air-pumping apparatus; 12-air-blowing apparatus; 13- first photoelectric sensor; 14- second photoelectric sensor.
As shown in
The present invention provides a device for automatically removing margins of rubber sealing rings in high-accuracy, which includes a vibrating plate 1, an installation platform 4, a motor assembly 5 and a core rod 9, wherein
A product-collecting box 10 is also arranged beside the core rod 9, and a first baffle 401 and a second baffle 402 are arranged on both sides of the product-collecting box 10 and the core rod 9; the first baffle 401 and the second baffle 402 function to cooperate with an air-blowing apparatus 12 to enable the products remove with margins to be blown to the product-collecting box 10.
One side of the core rod 9 far away from the product-collecting box 10 is further provided with an air-pumping apparatus 11 and an air-blowing apparatus 12. The air-pumping apparatus 11 functions to pump out flying chips generated during removing margins. The air-blowing apparatus 12 functions to blow the products remove with margins into the product-collecting box 10.
In this example, the vibrating plate 1 includes a top disc 101, a bottom disc 103 and a base 104, which are arranged in order from top to bottom, and a material flow channel 102 is arranged on the top disc 101. The vibrating plate 1 functions to, after putting the rubber ring products to be removed with margins into the top disc 101, vibrate and queue the products, so as to sequentially eject them from the material flow channel 102, and deliver them to the product-conveying belt 2.
In this example, the motor assembly 5 includes a motor platform 501, a motor connecting apparatus 503 and a motor body 504. The motor platform 501 is arranged in the opening of the installation platform 4. The motor body 504 is positioned below the motor platform 501, and installed and fixed on the installation platform 4 through the motor connecting apparatus 503, which is composed of two L-shaped connecting pieces. A motor magnet 502 is arranged inside the motor platform 501, facilitating the positioning and installation of the core rod 9.
In this example, the core rod 9 is a metal rod varying outer diameters and tapered at the top to some extent, and it can be selected and used in the light of the inner diameters of different products. The core rod 9 includes, from top to bottom, an upper zone 901 tapered to some extent, an outer margin-removing zone 902 with an outer diameter slightly larger than the inner diameters of products, an inner margin-removing zone 903 with a certain roughness and a lower zone 904. A core rod magnet 905 is arranged inside the lower zone 904 and used to cooperate with the motor magnet 502.
In this example, the clamping apparatus 6 includes a first Z-axis sliding rail 602, a first X-axis sliding rail 603, a clamper mounting seat 606, a clamping cylinder connecting plate 607 and a clamping cylinder 608.
The first Z-axis sliding rail 602 is a sliding rail arranged in the vertical direction, and installed and fixed on the installation platform 4 by means of the clamper mounting seat 606. A first Z-axis motor 601 is arranged at the top of the first Z-axis sliding rail 602.
The first X-axis sliding rail 603 is a sliding rail arranged in a horizontal direction, and installed on the first Z-axis sliding rail 602. One end of the first X-axis sliding rail 603 far away from the core rod 9 is provided with an first X-axis motor 604. A first X-axis sliding block 605 is further arranged on the first X-axis sliding rail 603. The clamping cylinder 608 is fixed on the first X-axis sliding block 605 by means of the clamping cylinder connecting plate 607.
The first X-axis sliding rail 603 is driven by the first Z-axis motor 601 and can move up and down along the first Z-axis sliding rail 602. The clamping cylinder 608 is driven by the first X-axis motor 604 and can move left and right along the first X-axis sliding rail 603.
In this example, the auxiliary apparatus 7 includes an auxiliary sliding rail 702, an auxiliary head connecting plate 703, an auxiliary head 704, an electromagnetic apparatus 705, a rotary disc 706 and an auxiliary apparatus mounting seat 707.
The auxiliary sliding rail 702 is a sliding rail arranged in a vertical direction, and installed and fixed on the installation platform 4 by means of the auxiliary apparatus mounting seat 707. An auxiliary motor 701 is arranged at the top of the auxiliary sliding rail 702.
The auxiliary head 704 is installed on the auxiliary sliding rail 702 by means of the auxiliary head connecting plate 703, and driven by the auxiliary motor 701 to move up and down along the auxiliary sliding rail 702. The electromagnetic apparatus 705 is arranged in the middle part of the auxiliary head 704, functioning to adsorb the core rod 9 after operation; the lower part of the auxiliary head 704 is provided with the rotary disc 706. In the case that the electromagnetic adsorption force of the electromagnetic apparatus 705 is adjusted to be greater than the magnetic force between the core rod magnet 905 and the motor magnet 502 and the auxiliary head 704 moves upwards, the core rod 9 can be driven to move upwards.
In this example, the margin-removing apparatus 8 includes a second Z-axis sliding rail 802, a second X-axis sliding rail 804, a second X-axis sliding block 805, a grinding head connecting block 806, an upper grinding head 807, a lower grinding head 808, a force sensor 809, and a margin-removing installation seat 810.
The second Z-axis sliding rail 802 is a slide rail arranged in the vertical direction, and installed and fixed on the installation platform 4 by means of the margin-removing installation seat 810. A second Z-axis motor 801 is arranged at the top of the second Z-axis sliding rail 802.
The second X-axis sliding rail 804 is a sliding rail arranged in a horizontal direction, and installed on the second Z-axis sliding rail 802. One end of the second X-axis sliding rail 804 far away from the core rod 9 is provided with the second X-axis motor 803. The second X-axis sliding block 805 is further arranged on the second X-axis slide rail 804. Both the upper grinding head 807 and the lower grinding head 808 are fixed on the second X-axis sliding block 805 by means of the grinding head connecting block 806.
The second X-axis sliding rail 804 is driven by the second Z-axis motor 801 and can move up and down along the second Z-axis sliding rail 802. The force sensor 809 controlling the positional accuracy of the grinding heads is arranged beside both the upper grinding head 807 and the lower grinding head 808. The second X-axis sliding block 805 is driven by the second X-axis motor 803 and can move left and right along the second X-axis sliding rail 804. The force sensor 809 functions to adjust the relative spatial position between both the upper grinding head 807 and the lower grinding head 808 and the rubber ring product, by measuring and feedbacking the pressure value between both the upper grinding head 807 and the lower grinding head 808 and the rubber ring product during operation, so as to achieve precisely adjusting the effect of removing margins.
This example further provides a method for removing margins of rubber sealing rings based on the device for automatically removing margins of rubber sealing rings in high-accuracy according to Example 1, comprising the following steps:
This example has the following advantages:
It has high removal accuracy that is adjustable. In the device and method for removing margins provided in this example, the motor assembly 5 drives the products to rotate, when the products are positioned in the outer margin-removing zone 902, the outer margins of the products are removed by the lower grinding head 808 with a certain roughness; when the products are positioned in the inner margin-removing zone 903, the products are pressed by the upper grinding head 807, and the inner margins of the products are removed by the inner margin-removing zone 903 with a certain roughness.
The device and method for removing margins provided in this example are controlled by the force sensor 809 behind the upper grinding head 807 and the lower grinding head 808 to control the removal accuracy, ensuring high removal accuracy during removing margins without damage to the rubber product substrate. Moreover, the feedback signal of the force sensor 809 is adjusted for different requirements for removal accuracy to effect adjusting the varied removal accuracy.
This example has a high degree of automation, and the removal effect is stable.
Compared with Example 1, the device for automatically removing margins of rubber sealing rings in high-accuracy provided by this example has differences as follows.
In this example, the four corners of the installation platform 4 are provided with support posts, and further, the bottoms of the support columns are provided with height-adjustable stand bars, and further, the support posts are made of 4040 aluminum section bars.
In this example, the middle of the installation platform 4 is provided with an opening fitting with the motor platform 501.
In this example, the installation platform 4 is provided with a plurality of threaded mounting holes, by which the product-conveying belt 2, the buffer conveyor belt 3, the clamping apparatus 6, the auxiliary apparatus 7 and the margin-removing apparatus 8 are all installed with bolt joint on the installation platform 4.
In this example, the motor body 504 is a speed-adjustable brushless motor, at one end of the output shaft of which the motor platform 501 is arranged. The upper plane of the motor platform 501 is coplanar with the upper plane of the installation platform 4.
In this example, the motor magnet 502 and the core rod magnet 905 are both a rubidium magnet, and the number of the motor magnet 502 and the core rod magnet 905 are each three, which respectively form an equilateral triangle distribution.
In this example, the core rod 9 pertains to a core rod group having the outer diameters varying with the inner diameters of the corresponding rubber ring products, and the position of the core rod magnet 905 in each core rod remains unchanged.
In this example, the core rod 9 is made of ferromagnetic material, and the top of the upper zone 901 is provided with a platform, the diameter of which is smaller than the diameter of the main portion of the core rod 9. The upper zone 901 is tapered at its top in its entirety, facilitating the arrangement of the clamping cylinder 608, so as to clamp the delivered products.
In this example, the diameter of the outer margin-removing zone 902 is larger than the inner diameter of the corresponding rubber ring, and gradually increases slightly from top to bottom, functioning to facilitate clamping the rubber ring.
In this example, the diameter of the inner margin-removing zone 903 is larger than the inner diameter of the corresponding rubber ring, and the inner margin-removing zone 903 has knurling, so as to facilitate processing and the removal of inner margins of the rubber ring.
In this example, the clamping cylinder 608 is a 32D two-claw cylinder, so as to clamp the rubber ring by means of the clamping piece fixed on the two-claw cylinder.
In this example, the top of the upper grinding head 807 is a smooth metal head, functioning to during positioning the rubber ring product in the inner margin-removing zone 903, compact the outside of the rubber ring product, so as to provide positive pressure and assist in removing the inner margins of the rubber ring.
In this example, the top of the lower grinding head 808 is a smooth metal head, functioning to during positioning the rubber ring product in the outer margin-removing zone 902, compact the outside of the rubber ring product, so as to provide positive pressure and assist in removing the outer margins of the rubber ring.
In this example, the product-conveying belt 2 is jointly controlled by the PLC and the first photoelectric sensor 13, and driven by its own built-in motor, having one end cooperating with the vibrating plate 1, and the other end cooperating with the buffer conveyor belt 3. The buffer conveyor belt 3 is jointly controlled by the PLC and the second photoelectric sensor 14.
In this example, the method of feeding products is as follows. After the vibrating plate 1 starts to operates, the products are delivered along the material flow channel 102 to the product-conveying belt 2, afterwards they continue to be delivered to the buffer conveyor belt 3 under the driving motion of the product-conveying belt 2. When the first photoelectric sensor 13 senses the products, the vibrating plate 1 and the product-conveying belt 2 stop operating, and the buffer conveyor belt 3 continues to operate. When the second photoelectric sensor 14 senses the products, the buffer conveyor belt 3 stops operating, and the products are delivered to a fixed position, so that the clamping cylinder 608 can grab them.
In this example, the product-collecting box 10 is supported by a support and adjusted to a suitable height. The side wall of one side of the product-collecting box 10 close to the core rod 9 is at the same height as the upper surface of the installation platform 4. The side wall of one side of the product-collecting box 10 far away to the core rod 9 and side walls of other two sides are at higher height than the upper surface of the installation platform 4.
In this example, the air-pumping apparatus 11 and the air-blowing apparatus 12 are fixed at the lower part of the auxiliary apparatus 7, and the air-pumping apparatus 11 is positioned at the upper part of the air-blowing apparatus 12. The air-pumping apparatus 11 functions to pump out flying chips generated during removing margins. The air-blowing apparatus 12 functions to blow the products remove with margins into the product-collecting box 10.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2022100225777 | Jan 2022 | CN | national |
