Multi-station jig for removing rim charges of rubber

Abstract

The utility model discloses a multi-station jig for removing rim charges of rubber, which comprises a rack, an upper die arranged at the top of the rack, a movable guide rail arranged in the middle of the rack, a lower die arranged on the movable guide rail and matched with the upper die for use, and a supporting plate, a hard limiting piece is arranged between the lower die and the supporting plate, a shutter assembly is arranged on the periphery of the upper die, and a spring seat matched with the shutter assembly for use is arranged on the lower die and used for conveniently separating the upper die from the supporting plate and supporting a machined product and leftover materials to the upper end of the positioning shaft. A separating assembly is arranged at an inlet of the machine frame and used for separating products from leftover materials, a connecting piece is arranged on the rear side of the lower die, and the rear end of the connecting piece is connected with a collecting box. The multi-station jig for removing the offcut of the rubber can machine the outer edge of the rubber in a multi-station mode, and the cut offcut is rapidly separated from a machined product.

Description

Technical Field

[0001] This utility model relates to a rubber edge trimming device, and more particularly to a multi-station fixture for rubber edge trimming materials. Background Technology

[0002] In the production of rubber products, suitable rubber materials, such as natural rubber and synthetic rubber, are first selected. Then, according to product requirements, the rubber materials are mixed with various compounding agents (such as vulcanizing agents, accelerators, and fillers). Next, the ingredients are thoroughly mixed in a mixing mill to ensure that the components are evenly distributed. The mixed rubber is then calendered or extruded into basic shapes such as sheets or tubes. The semi-finished products are heated and pressurized in a vulcanizing machine. After processing, the products undergo cooling, grinding, and edge trimming to become products with specific shapes and properties. Finally, polishing, painting, printing, and heat treatment are performed to meet the product's appearance and performance requirements.

[0003] Currently, the edge trimming process for the oil box filter element in a one-way valve requires not only cutting the inner diameter of the molded rubber sheet but also manually cutting away the outer edges of the processed product. This involves high labor intensity, high production costs, and difficulty in improving production efficiency. Therefore, it is necessary to design a multi-station rubber edge trimming fixture that can process the rubber outer edge at multiple stations and quickly separate the cut-off scrap from the processed product. Utility Model Content

[0004] In view of the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a multi-station fixture for rubber edge trimming, which realizes that the multi-station fixture can process the outer edge of rubber in multiple stations and quickly separate the cut-off scrap from the processed product.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A multi-station fixture for rubber trimming includes a frame, an upper mold mounted on the top of the frame, a moving guide rail mounted in the middle of the frame, a lower mold and a support plate mounted on the moving guide rail for use with the upper mold, the lower mold having several positioning shafts, a common rigid limiting component between the lower mold and the support plate, an opening and closing device assembly around the upper mold, and a spring seat on the lower mold for use with the opening and closing device assembly to facilitate separation of the upper mold and the support plate, and to lift the processed product and scrap material to the upper end of the positioning shafts; a separation component is provided at the entrance of the frame for separating the product and scrap material.

[0007] Preferably, the pallet has a first hole that passes through the positioning shaft, and the upper mold has a second hole that passes through the positioning shaft. The positioning shafts include multiple first shafts and multiple second shafts, and each of the first shafts and the second shafts has a through shaft at its top.

[0008] Preferably, the rigid limiting component includes a limiting rod disposed on the lower mold and a limiting head at the top of the limiting rod, and the upper mold has a through hole that passes through the limiting head.

[0009] Preferably, the limiting head is located on the upper side of the tray, and the diameter of the limiting head is larger than the diameter of the limiting rod.

[0010] Preferably, the opening / closing device assembly includes a threaded sleeve that passes through the upper mold, an opening / closing device sleeve rod that is fitted at the lower end of the threaded sleeve, a spring post that is provided at the top of the spring seat and the opening / closing device sleeve rod passes through the spring post, and a one-way valve that is provided on the lower mold for limiting the position of the support plate above the lower mold.

[0011] Preferably, both the pallet and the lower mold are provided with openings for the opening and closing device sleeve rod to pass through, and the upper part of the opening and closing device sleeve rod is provided with a rough layer.

[0012] Preferably, the separation assembly includes an electric push rod arranged parallel to the lower mold, and the telescopic end of the electric push rod is provided with a lever.

[0013] Preferably, a connector is provided on the rear side of the lower mold, and a collection box is connected to the rear end of the connector. An arc-shaped part is provided on the side of the collection box near the lower mold, and an arc-shaped groove is provided on the arc-shaped part. A roller is provided at the lower end of the collection box.

[0014] Compared with existing technologies, the multi-station rubber trimming fixture provided by this utility model can process multiple rubber sheets simultaneously, performing multi-station rubber product trimming, and quickly separating the cut scraps from the rubber products. Specifically, the arrangement of several positioning shafts on the lower mold, along with the cooperation of the opening and closing device assembly and spring sleeve on the upper mold, facilitates the simultaneous cutting of the outer edge of the rubber product on the entire rubber sheet when the upper mold presses down on the support plate and the lower mold is engaged. Then, the one-way valve limits and supports the support plate, and the rigid limiting component on the upper side of the positioning shaft allows the cut scraps and products to be ejected simultaneously, enabling simultaneous trimming of multiple rubber products, achieving automated processing of rubber products, reducing labor costs, and improving production efficiency.

[0015] Furthermore, by using the separation assembly located on the upper side of the positioning shaft on the frame, the electric push rod in the separation assembly can extend a lever to push the rubber products separated from the top of the upper die when the lower die moves along the moving guide rail to discharge material. As the lower die moves towards the inlet and outlet ends, the lever can push the separated products into the collection box for storage, realizing the rapid separation of rubber products and scraps, saving the screening of rubber products and scraps, and facilitating the rapid production of rubber products.

[0016] It should be understood that the general descriptions and details herein are exemplary and illustrative only and are not intended to limit this disclosure.

[0017] This application provides an overview of various implementations or exemplary embodiments of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the multi-station fixture for rubber edge trimming of this utility model.

[0019] Figure 2 This is a structural diagram of the pressing state of the upper and lower dies in the multi-station fixture for rubber edge trimming of this utility model;

[0020] Figure 3 This is a structural diagram of the material feeding state of the multi-station rubber trimming fixture of this utility model;

[0021] Figure 4 This is a schematic diagram of the lower mold and collection box in the multi-station fixture for rubber edge trimming of this utility model;

[0022] Figure 5 This is a partial exploded view of the collection box in the multi-station fixture for rubber edge trimming of this utility model;

[0023] Figure 6 This is a partial structural cross-sectional view of the opening / closing device assembly and spring sleeve in the multi-station fixture for rubber edge trimming of this utility model.

[0024] Key reference numerals:

[0025] 1. Frame; 11. Upper mold; 12. Lower mold; 13. Support plate; 14. Moving guide rail; 2. Positioning shaft; 21. First shaft; 22. Second shaft; 23. Through shaft; 24. First hole; 25. Second hole; 31. Hard limit component; 311. Limit rod; 312. Limit head; 313. Through hole; 32. Opener / closer assembly; 321. Threaded sleeve; 322. Opener / closer sleeve rod; 33. Spring seat; 331. Spring column; 34. One-way valve; 4. Separation assembly; 41. Electric push rod; 411. Toggle rod; 42. Connector; 43. Collection box; 431. Arc-shaped part; 432. Arc-shaped groove; 433. Roller. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. Note: The described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0027] As attached Figure 1 To be continued Figure 4 As shown in the embodiment of this utility model, the multi-station fixture for rubber edge removal is used for multi-station multi-piece processing of one-way valve oil box filter elements. It facilitates the simultaneous placement and processing of multiple sets on the mold, thereby improving the edge removal rate of the product and reducing labor costs. Currently, in the production of rubber products, the upper mold 11 and the lower mold 12 are used to extrude and shape the product. Therefore, this application makes improvements based on the existing rubber product shaping technology to remove the edges of oil and filter elements. The existing rubber product shaping equipment includes a frame 1, with an upper mold 11 set on the top of the frame 1. A moving guide rail 14 is set in the middle of the frame 1, and a lower mold 12 is set on the moving guide rail 14. The top of the lower mold 12 is equipped with a tray 13 for holding the rubber sheet with the pre-processed inner diameter. Using the existing linear movement technology of the guide rail, the moving guide rail 14 can drive the lower mold 12 to move on the frame 1, realizing the loading or unloading of the processed material. During operation, the tray 13 with the upper mold 11 can be moved to below the upper mold 11 using the moving guide rail 14. The upper mold 11 extrudes the lower mold 12 to remove the edges of the rubber product. Then, by lifting the upper mold 11, the moving guide rail 14 can remove the lower mold 12. Next, in order to achieve simultaneous processing of multiple stations and groups of filter elements, several positioning shafts 2 can be set on the lower mold 12, and a common rigid limiting component 31 can be set between the lower mold 12 and the support plate 13. Opening and closing device assemblies 32 are set around the upper mold 11. Through the spring seat 33 set on the lower mold 12 that cooperates with the opening and closing device assembly 32, when the upper mold 11 is pressed down, the outer edge material can be moved down, and the height position of the product remains unchanged, separating the edge material from the position of the product. The opening and closing device assembly 32 can then be inserted into the support plate. In step 13, friction occurs with the pallet 13. When the upper mold 11 moves upward and opens with the lower mold 12, the upper mold 11 can also lift the pallet 13 upward through the opening and closing assembly 32, moving the product and scrap upward. Then, the pallet 13 is limited by the hard limiting member 31, so that the pallet 13 is limited at the upper end of the hard limiting member 31. The opening and closing assembly 32 separates from the pallet 13, and the upper mold 11 separates from the pallet 13. The processed product and scrap are lifted to the upper end of the positioning shaft 2, making it convenient to remove the product and scrap. Next, a separation assembly 4 with the same height as the hard limiting member 31 is set at the entrance of the frame 1. When the moving guide rail 14 moves the lower mold 12 to discharge material, the separation assembly 4 can separate the rubber product and scrap, realizing the separate removal of the product and scrap, reducing the picking up of rubber products, and improving the edge removal efficiency of rubber products.

[0028] It is worth noting that, to facilitate the edge trimming of the product on the pallet 13 by the upper mold 11, a first hole 24 is made on the pallet 13 to facilitate the passage of the positioning shaft 2, and a second hole 25 is made on the upper mold 11 to facilitate the passage of the positioning shaft 2. The first hole 24 can cooperate with the lower end of the first shaft 21 and the second shaft 22, and the second hole 25 can be set as a circular hole. During the edge trimming of the oil box filter element, the upper mold 11 presses down to drive the pallet 13 to move and pass through the positioning shaft 2 to perform the edge trimming work. Currently, the rubber processing equipment for processing the oil box filter element in the one-way valve 34 uses positioning shafts 2 of different sizes according to the shape and specifications of the filter element for positioning the rubber product with the whole inner diameter pre-treated. Furthermore, several positioning shafts 2 are fixedly set on the lower mold 12 to facilitate multi-station processing of rubber products. The several positioning shafts 2 include stepped shafts of multiple first shafts 21 and multiple second shafts 22, and a through shaft 23 with the same structure is set at the top of the first shaft 21 and the second shaft 22. When placing the rubber product, the inner diameter of the entire rubber product is pre-processed, and then the inner diameter is fitted onto the outside of the through shaft 23. The lower ends of the first shaft 21 and the second shaft 22 are used for limiting. Multiple layers of rubber products can be fitted onto the through shaft 23, which facilitates the simultaneous processing of multiple layers of rubber products by the device and improves the processing efficiency of multi-station jigs.

[0029] In some embodiments, to facilitate the removal of edges by the tray 13 without affecting the trimming of the upper mold 11 and the lower mold 12, such as Figure 4 As shown, a limiting rod 311 fixed to the lower mold 12 can be provided at the lower end of the rigid limiting member 31. A limiting head 312 located on the upper side of the support plate 13 is provided at the top of the limiting rod 311. A through hole 313 is opened on the upper mold 11 to pass through the limiting head 312. When the rubber product is being de-edge processed, the upper mold 11 can be pushed against the support plate 13 by using the hydraulic cylinder, air cylinder or other linear motion structure provided at the upper end. Then, the support plate 13 is pushed against the lower mold 12. The support plate 13 passes through the limiting rod 311, and the limiting head 312 passes into the through hole 313. The cooperation of the upper mold 11 and the support plate 13 with the lower mold 12 can perform edge de-edge processing on the required product edges of the whole rubber sheet. The upper mold 11 cuts the edge of the product where each positioning shaft 2 is located, completing the multi-station and multi-layer edge de-edge processing of the filter element by the jig.

[0030] Furthermore, to facilitate the edge trimming of the upper mold 11, lower mold 12, and support plate 13, the diameter of the limiting head 312 needs to be larger than the diameter of the limiting rod 311. The limiting head 312 is located on the upper side of the support plate 13. Through the structural design of this rigid limiting member 31, it is easy to penetrate the upper mold 11 and limit the position of the support plate 13, separating the support plate 13 from the upper mold 11. This facilitates the use of the second hole 25 in the upper mold 11 and the first hole 24 in the support plate 13 to cooperate with the downward pressure of the lower mold 12 to trim multiple products simultaneously, which is convenient for multi-station processing of products.

[0031] In some embodiments, to facilitate the opening and closing of the upper mold 11 and the tray 13, an opening and closing device is used on the upper mold 11, such as... Figure 5 As shown, the opening / closing device assembly 32 includes a threaded sleeve 321 that passes through the upper mold 11. The lower end of the threaded sleeve 321 is fitted with an opening / closing device rod 322 for opening and closing the pallet 13. A spring post 331 is provided at the top of the spring seat 33. When the upper mold 11 presses down on the pallet 13, the opening / closing device rod 322 passes through the pallet 13 and then through the spring post 331, locking itself against the pallet 13. The opening / closing device rod 322 and the spring post 331 pass through each other, utilizing the friction between the pallet 13 and the opening / closing device rod 322 to facilitate the opening and closing of the pallet 13. When mold 11 is opened, a rigid limiting member 31 is used to separate the support plate 13 from the upper mold 11, and then a one-way valve 34 is used for limiting. In addition, a one-way valve 34 is provided on the lower mold 12 to limit the support plate 13. When the upper mold 11 presses down on the support plate 13, the one-way valve 34 opens, providing conditions for the support plate 13 and the lower mold 12 to press down. The height of the one-way valve 34 is between the limiting head 312 and the positioning shaft 2, which makes it convenient for the support plate 13 to use the one-way valve 34. It is arranged parallel above the lower mold 12 for limiting the support plate 13.

[0032] It is worth noting that, in order for the opening and closing device assembly 32 to be effectively used in the mold on the pallet 13, it is necessary to open a rod opening on both the pallet 13 and the lower mold 12 to allow the opening and closing device sleeve 322 to pass through. The upper part of the opening and closing device sleeve 322 will be set with a rough layer to increase the connecting friction between the opening and closing device assembly 32 and the pallet 13, so that the pallet 13 is moved to the lower side of the limiting head 312.

[0033] When the rubber material is removed from the jig, the separation component 4 can be used to remove the cut rubber product from the pallet 13. The separation component 4 includes an electric push rod 41 arranged parallel to the lower mold 12. The telescopic end of the electric push rod 41 is provided with a lever 411. After the pallet 13 is separated from the upper mold 11, the opening and closing device component 32 will separate from the pallet 13 due to the dragging of the limit head 312 on the pallet 13. The rubber product has a certain inertia after being pressed down and when it moves upward, and can be loosely distributed with the scrap. Therefore, when the moving guide rail 14 is unloading, the electric push rod 41 can be used to drive the limit of the lever 411 to push the product into the collection box 43 connected behind the lower mold 12 for collection, so as to achieve separate collection of rubber products and scrap. In order to more fully push the product, a rough surface jacket can be put on the lever 411 to increase the pushing effect of the lever 411 on the rubber product.

[0034] In some embodiments, such as Figures 4 to 6As shown, a connector 42 can be provided on the rear side of the lower mold 12, and a collection box 43 is connected to the rear end of the connector 42. The collection box 43 has an arc-shaped part 431 on the side near the lower mold 12. An arc-shaped groove 432 for collecting rubber products is opened on the arc-shaped part 431. A roller 433 is provided at the lower end of the collection box 43, so that when the lower mold 12 moves using the moving guide rail 14, the collection box 43 can also be moved. The rubber products can be collected separately using the limiting of the separation component 4 and the scrap. The removed lower mold 12 can take out the scrap from the tray 13 for the next set of rubber products to be de-edge processed, increasing the sustainability of the jig processing.

[0035] Of course, the above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A multi-station fixture for rubber edge trimming, comprising a frame (1), an upper mold (11) disposed at the top of the frame (1), a moving guide rail (14) disposed in the middle of the frame (1), a lower mold (12) disposed on the moving guide rail (14) and cooperating with the upper mold (11), and a support plate (13), characterized in that: The lower mold (12) is provided with several positioning shafts (2), and the same hard limit member (31) is provided between the lower mold (12) and the pallet (13). The upper mold (11) is provided with opening and closing device assemblies (32) around its perimeter. The lower mold (12) is provided with a spring seat (33) that works with the opening and closing device assembly (32) to facilitate the separation of the upper mold (11) and the pallet (13) and to lift the processed products and scraps to the upper end of the positioning shafts (2). A separation component (4) is provided at the entrance of the frame (1) for separating the product from the scrap.

2. The multi-station fixture for rubber edge trimming as described in claim 1, characterized in that, The pallet (13) has a first hole (24) through which the positioning shaft (2) passes, and the upper mold (11) has a second hole (25) through which the positioning shaft (2) passes. The positioning shaft (2) includes multiple first shafts (21) and multiple second shafts (22). The top of the first shaft (21) and the second shaft (22) is provided with a through shaft (23).

3. The multi-station fixture for rubber edge trimming as described in claim 1, characterized in that, The rigid limiting member (31) includes a limiting rod (311) disposed on the lower mold (12) and a limiting head (312) at the top of the limiting rod (311). The upper mold (11) has a through hole (313) that passes through the limiting head (312).

4. The multi-station fixture for rubber edge trimming as described in claim 3, characterized in that, The limiting head (312) is located on the upper side of the tray (13), and the diameter of the limiting head (312) is larger than the diameter of the limiting rod (311).

5. The multi-station fixture for rubber edge trimming as described in claim 1, characterized in that, The opening / closing device assembly (32) includes a threaded sleeve (321) that passes through the upper mold (11), and an opening / closing device sleeve rod (322) is sleeved on the lower end of the threaded sleeve (321). A spring column (331) is provided on the top of the spring seat (33), and the opening / closing device sleeve rod (322) passes through the spring column (331). A one-way valve (34) is provided on the lower mold (12) for limiting the position of the pallet (13) above the lower mold (12).

6. The multi-station fixture for rubber edge trimming as described in claim 5, characterized in that, Both the pallet (13) and the lower mold (12) are provided with rod openings through which the opening and closing device sleeve (322) passes. The upper part of the opening and closing device sleeve (322) is provided with a rough layer.

7. The multi-station fixture for rubber edge trimming as described in claim 1, characterized in that, The separation component (4) includes an electric push rod (41) arranged parallel to the lower mold (12), and the telescopic end of the electric push rod (41) is provided with a lever (411).

8. The multi-station fixture for rubber edge trimming as described in claim 1, characterized in that, A connector (42) is provided on the rear side of the lower mold (12), and a collection box (43) is connected to the rear end of the connector (42). An arc-shaped part (431) is provided on the side of the collection box (43) near the lower mold (12), and an arc-shaped groove (432) is provided on the arc-shaped part (431). A roller (433) is provided at the lower end of the collection box (43).

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