Multi-layer rubber material composite bonding device and bonding method

Abstract

The present invention provides a multi-layer rubber material composite bonding device and bonding method. The bonding device includes a frame, a guide rail, and a central fixing assembly. The central fixing assembly is fixedly mounted on the guide rail and the frame. The central fixing assembly is provided with a rubber material clamping space for clamping the rubber material in the middle layer during bonding. There are two end fixing plates, each of which is vertically mounted on either side of the central fixing assembly. Each end fixing plate is slidably mounted on the guide rail. The side of the end fixing plate facing the central fixing assembly is provided with a clamping groove for clamping the rubber material on one side during bonding. The end fixing plates can move toward the central fixing assembly to align and contact the rubber materials clamped by the two. The present invention achieves automatic alignment during composite bonding of multi-layer rubber materials through the arrangement of the end fixing plates and the central fixing assembly. The bonded product is flush on all sides, improving bonding efficiency and reducing production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber composite bonding, and in particular to a multi-layer rubber material composite bonding device and bonding method. Background Art

[0002] Multiple layers of rubber are bonded together using adhesives, most often chloroprene adhesives, which are typically room-temperature curing contact adhesives. This type of adhesive is applied to the rubber surface, properly aired, and then brought together to form a contact adhesive. This adhesive instantly crystallizes, creating a strong initial bond and high initial tack. Strength builds quickly, making it difficult to separate the layers once they've bonded. Therefore, it's crucial to align and bond the layers simultaneously to prevent interlayer misalignment.

[0003] In the prior art, in order to ensure that the sides of multiple layers of rubber materials are aligned when they are bonded and compounded, the length and width of the prepared rubber material are usually larger than the designed dimensions when each layer of rubber material is vulcanized. After the adhesive is adhered and cured, the excess length and width are cut off or polished off. This will, on the one hand, cause waste of rubber material and increase production costs; on the other hand, it will increase the labor hours for cutting or polishing, which will also lead to increased production costs. Summary of the Invention

[0004] The problem to be solved by the present invention is that, in the prior art, in order to ensure that the sides of multiple layers of rubber materials are aligned during composite bonding, the length and width dimensions of the rubber materials prepared during vulcanization are both larger than the designed dimensions. After bonding and curing, the excess length and width dimensions are cut or polished off, which on the one hand causes material waste and on the other hand leads to increased production costs.

[0005] The present invention discloses a multi-layer rubber material composite bonding device, comprising:

[0006] A frame, the frame being used to support other components of the bonding device;

[0007] A guide rail, wherein the guide rail is fixedly arranged on the frame;

[0008] A central fixing assembly, the central fixing assembly being fixedly mounted on the guide rail and the frame, and the central fixing assembly being provided with a rubber material clamping space for clamping the rubber material in the middle layer during bonding;

[0009] There are two end side fixing plates, and the two end side fixing plates are respectively vertically arranged on both sides of the central fixing component. Each of the end side fixing plates can be slidably arranged on the guide rail, wherein each end side fixing plate is provided with a clamping groove on the side facing the central fixing component, and the clamping groove is used to clamp the rubber material on one side during bonding; the two end side fixing plates can respectively move toward the central fixing component, and align the rubber material clamped by them with the rubber material clamped by the central fixing component and touch and fit them.

[0010] Furthermore, the distance between the clamping groove and the front and rear edges of the end edge fixing plate is greater than or equal to 5 mm, and the upper end of the clamping groove is flush with the upper end of the end edge fixing plate, and the distance between the lower end of the clamping groove and the lower edge of the end edge fixing plate is greater than or equal to 10 mm. The length and width of the clamping groove are consistent with the length and width of the rubber material to be clamped, and the height of the clamping groove is less than or equal to the thickness of the rubber material to be clamped.

[0011] Furthermore, the height of the clamping groove is 1 / 2 to 2 / 3 of the thickness of the rubber material to be clamped.

[0012] Furthermore, a plurality of through holes are provided at the bottom of the clamping groove, and vacuum suction cups are correspondingly provided in the through holes. The vacuum suction cups are used to cooperate with the clamping groove to absorb and clamp the rubber material.

[0013] Furthermore, the number of vacuum cups and the diameter of the vacuum cups are determined by the following formula:

[0014]

[0015] Where D is the diameter of the vacuum cup (unit: mm), n is the number of cups, W is the adsorption force (unit: N), P is the vacuum degree (unit: kPa), and f is the safety factor (f ≥ 1 / 8).

[0016] Furthermore, the center fixing assembly includes a first limit plate, a second limit plate and a first connecting plate, the first limit plate is arranged on the front side of the frame, the second limit plate is arranged on the rear side of the frame, the first limit plate and the second limit plate are fixedly connected to the frame and the guide rail respectively, the bottom of the first limit plate and the second limit plate are connected through the first connecting plate, the rear side surface of the first limit plate is flush with the front side surface of the clamping groove, the front side surface of the second limit plate is flush with the rear side surface of the clamping groove, the upper end surface of the connecting plate is flush with the lower side surface of the clamping groove, and the space between the rear side surface of the first limit plate and the front side surface of the second limit plate is the rubber material clamping space.

[0017] Furthermore, a movable locking plate is respectively provided in the first limiting plate and the second limiting plate, the outer side of the locking plate is connected to the pulling hand, and the inner side of the locking plate extends into the space between the first limiting plate and the second limiting plate. The locking plate can move outward when pulled by the pulling hand.

[0018] Furthermore, a plurality of through grooves are provided at the bottom of the end edge fixing plate, the through grooves pass through the thickness direction of the end edge fixing plate, and the upper end surface of the through grooves is flush with the lower end surface of the clamping grooves, and a plurality of support plates are respectively provided on the left and right sides of the first connecting plate, the support plates are arranged corresponding to the through grooves, and can cooperate with the through grooves for positioning when the rubber material is bonded.

[0019] Furthermore, a plurality of baffles that can slide back and forth are respectively provided on the left and right sides of the first limiting plate and on the left and right sides of the second limiting plate, and the baffles are used to stop and position the rubber material clamped in the central fixing component.

[0020] The present invention also discloses a multi-layer rubber material composite bonding method, which is used for the bonding device described above. A plurality of through holes are provided at the bottom of the clamping groove, and vacuum suction cups are provided in the through holes. Locking plates are provided on the front and rear sides of the central fixing component, respectively. The locking plates are connected to the pulling hands, and the locking plates are used to cooperate with the pulling hands to clamp and lock the rubber material clamped in the central fixing component. A plurality of baffles are provided on the left and right sides of the central fixing component, respectively. The baffles are used to stop and position the rubber material clamped in the central fixing component. The bonding method includes:

[0021] Step S1: Connect the vacuum suction cup on the end fixing plate to the vacuum pump;

[0022] Step S2: placing the rubber material in the clamping groove of the end fixing plate, with the surface of the rubber material to be coated with the adhesive exposed and facing the central fixing assembly;

[0023] Step S3: Turn on the vacuum pump and use vacuum pressure to fix the rubber material on the end fixing plate;

[0024] Step S4: placing the middle rubber layer of the multi-layer rubber material in the central fixing assembly, pulling open the pull handle, and locking the middle rubber layer with a locking plate;

[0025] Step S5: sliding the baffle on one of the left and right sides outward, while keeping the baffle on the other side extended inward;

[0026] Step S6: applying adhesive to the surfaces of the rubber material and the intermediate rubber layer to be bonded;

[0027] Step S7: After the adhesive compounding time is reached, the end fixing plate located at the end of the baffle that slides outward slides along the guide rail toward the central fixing assembly, so that the rubber material on the end fixing plate contacts and fits with the middle rubber material in the central fixing assembly;

[0028] Step S8: Slide the baffle on the other side outward, and slide the end fixing plate corresponding to the baffle along the guide rail toward the central fixing assembly, so that the rubber material on the end fixing plate contacts and fits with the middle rubber material in the central fixing assembly;

[0029] Step S9: After the multiple layers of rubber material are completely bonded, turn off the vacuum pump, open the valve of the vacuum suction cup, slide the end fixing plates to the left and right ends respectively, open the pulling hands, and remove the multiple layers of rubber material from the central fixing assembly to complete the bonding.

[0030] Compared with the prior art, the multi-layer rubber material composite bonding device and bonding method described in the present invention have the following advantages:

[0031] The present invention achieves automatic alignment during the composite bonding of multiple layers of rubber materials by providing end-side fixing plates and a central fixing assembly. The bonded product is flat, smooth, and aesthetically pleasing on all sides, eliminating the need for cutting. This improves composite efficiency and reduces production costs. Furthermore, by replacing end-side fixing plates and central fixing assemblies of various sizes, composites of multiple layers of rubber materials of various sizes can be achieved. This ensures the composite bonding quality of the multiple layers of rubber materials and reduces interlayer misalignment defects without increasing production costs. The bonding device provided by the present invention has a simple structure, is easy to operate, and is inexpensive, improving composite efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of the multi-layer rubber material composite bonding device according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the end edge fixing plate according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the three-dimensional structure of the end edge fixing plate according to an embodiment of the present invention from another angle;

[0035] Figure 4 This is a schematic diagram of the three-dimensional structure of the central fixing assembly according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the three-dimensional structure of one of the guide rails described in an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 1. End fixing plate; 2. Center fixing assembly; 3. Guide rail; 4. Frame; 5. Roller; 6. Connecting part; 7. Through slot; 8. Through hole; 9. Clamping slot; 10. Handle; 11. Vacuum suction cup; 12. Support positioning plate; 13. Valve; 14. Baffle; 15. Support plate; 16. Locking plate; 17. Pulling handle; 18. Slider; 19. Second connecting plate; 20. First limit plate; 21. Second limit plate; 22. First connecting plate; 23. Clearance slot. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described are part of the embodiments of the present invention, rather than all of the embodiments. The specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. It should be noted that, unless there is a conflict, the features in the embodiments and embodiments of the present invention may be combined with each other.

[0040] A multi-layer rubber material composite bonding device and bonding method according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Example 1

[0042] This embodiment provides a multi-layer rubber material composite bonding device, such as Figure 1 As shown, including:

[0043] A frame 4, which is used to support other components of the bonding device;

[0044] A guide rail 3, wherein the guide rail 3 is fixedly arranged on the frame 4;

[0045] A central fixing component 2, the central fixing component 2 being fixedly mounted on the guide rail 3 and the frame 4, and having a rubber material clamping space provided on the central fixing component 2 for clamping the rubber material in the middle layer during bonding;

[0046] There are two end fixing plates 1, and the two end fixing plates 1 are respectively vertically arranged on both sides of the central fixing component 2. Each of the end fixing plates 1 can be slidably arranged on the guide rail 3, wherein each end fixing plate 1 is provided with a clamping groove 9 on the side facing the central fixing component 2, and the clamping groove 9 is used to clamp the rubber material on one side during bonding; the two end fixing plates 1 can be moved toward the central fixing component 2 respectively, and the rubber material clamped by them is aligned with the rubber material clamped by the central fixing component 2 and touches and fits.

[0047] The clamping grooves 9 are used to clamp the rubber material on one side during bonding. This means that the clamping grooves 9 on the left-hand side fixing plate 1 are used to clamp the rubber material on the left side during bonding, while the clamping grooves 9 on the right-hand side fixing plate 1 are used to clamp the rubber material on the right side during bonding. With this arrangement, when bonding multiple layers of rubber material, the rubber material to be bonded can be placed in the clamping grooves 9 on the central fixing assembly 2 and the side fixing plates 1 on either side. Adhesive is then applied to the surfaces to be bonded. After proper drying, the side fixing plates 1 on either side are moved toward the central fixing assembly 2 so that the rubber material clamped on the central fixing assembly 2 is aligned and contact-bonded with the rubber material clamped on the side fixing plates 1 on either side. This arrangement eliminates the need to reserve dimensions for the rubber material during production, significantly reducing material waste and lowering product production costs. It also saves time aligning the rubber materials during production, improving production efficiency.

[0048] In one embodiment, the distance between the clamping groove 9 and the front and rear edges of the end edge fixing plate 1 is greater than or equal to 5 mm, the upper end of the clamping groove 9 is flush with the upper end of the end edge fixing plate 1, and the distance between the lower end of the clamping groove 9 and the lower edge of the end edge fixing plate 1 is greater than or equal to 10 mm. The length and width of the clamping groove 9 are consistent with the length and width of the rubber material to be clamped, and the height of the clamping groove 9 is less than or equal to the thickness of the rubber material to be clamped. Through the above configuration, the clamping groove 9 forms a groove-like structure with the same length and width as the rubber material to be clamped, facilitating the precise positioning of the rubber material to be clamped before bonding.

[0049] In a preferred embodiment, the height of the clamping groove 9 is 1 / 2 to 2 / 3 the thickness of the rubber material to be clamped. This configuration allows the side of the clamping groove 9 closest to the central fixing assembly 2 to protrude from the clamping groove 9 when clamping the rubber material, thereby facilitating adhesion between the clamping groove 9 and the rubber material clamped by the central fixing assembly 2.

[0050] In this embodiment, if Figure 2 As shown, a plurality of connecting portions 6 are provided on the end edge fixing plate 1, and the connecting portions 6 are used to connect the end edge fixing plate 1 with the guide rail 3. In some embodiments, the connecting portions 6 are threaded holes, which are connected to the guide rail 3 by bolts.

[0051] As some optional embodiments, Figure 1As shown, there are four guide rails 3, two of which are arranged on the front side of the frame 4, and the other two guide rails 3 are arranged on the rear side of the frame 4. The two guide rails 3 arranged on the front side are arranged in upper and lower positions in the same vertical direction, and the two guide rails 3 arranged on the rear side are arranged in upper and lower positions in the same vertical direction, and the upper guide rail 3 on the front side and the upper guide rail 3 on the rear side are in the same horizontal plane, and the lower guide rail 3 on the front side and the lower guide rail 3 on the rear side are in the same horizontal plane. In this case, connecting parts 6 are correspondingly provided at positions near the middle and the lower side on the front and rear sides of the end fixing plate 1 in the vertical direction, which are used to connect with the four guide rails 3. Among them, the guide rails 3 are linear guides. Among them, as Figure 5 As shown, a slidable slider 18 is provided at each end of each guide rail 3. A second connecting plate 19 is fixedly mounted on each slider 18. The second connecting plate 19 is fixedly connected to the end fixing plate 1. Preferably, the second connecting plate 19 is an L-shaped plate, one surface of which is fixedly connected to the slider 18, and the other surface is provided with a threaded hole for connecting to the end fixing plate 1. This arrangement enables the slider 18 to move the end fixing plate 1, thereby moving it closer to or further away from the central fixing assembly 2, thereby bonding the rubber material.

[0052] As one example, Figure 2 、 Figure 3 As shown, a plurality of through holes 8 are provided at the bottom of the clamping groove 9, and vacuum suction cups 11 are correspondingly provided in the through holes 8. The vacuum suction cups 11 are used to cooperate with the clamping groove 9 to adsorb and clamp the rubber material. In order to ensure the stability of the adsorption force, the plurality of through holes 8 are symmetrically arranged in the front-to-back direction and the up-down direction. It should be understood that since the height of the clamping groove 9 is less than or equal to the thickness of the rubber material, the rubber material is prone to tipping over when clamped in the clamping groove 9. The arrangement of the vacuum suction cups 11 can ensure the stability of the rubber material in the clamping groove 9. In order to ensure the smooth assembly of the vacuum suction cups 11, the diameter of the through holes 8 is consistent with the maximum diameter of the vacuum suction cups 11 that can be used by the bonding device, and the number of the through holes 8 is consistent with the number of the vacuum suction cups 11.

[0053] Optionally, the number of the vacuum suction cups 11 and the diameter of the vacuum suction cups 11 are determined by formula (1):

[0054] (1)

[0055] Wherein, D is the diameter of the vacuum suction cup 11 in mm, n is the number of suction cups, W is the adsorption force in N, P is the vacuum degree in kPa, and f is the safety factor, f≥1 / 8.

[0056] As an embodiment of the present invention, a plurality of support and positioning plates 12 are provided on a surface of the end-edge fixing plate 1 away from the central fixing assembly 2. The support and positioning plates 12 are arranged in a "Π" shape and are disposed corresponding to the through-holes 8. The suction end of the vacuum suction cup 11 passes through the support and positioning plates 12 and is connected to an external suction valve 13. The support and positioning plates 12 are used to support and position the vacuum suction cup 11. The support and positioning plates 12 span across the through-holes 8 and are fixedly connected to the end-edge fixing plate 1 at both ends by bolts.

[0057] As an embodiment of the present application, Figure 4 As shown, the central fixing assembly 2 includes a first limit plate 20, a second limit plate 21 and a first connecting plate 22. The first limit plate 20 is arranged on the front side of the frame 4, and the second limit plate 21 is arranged on the rear side of the frame 4. The first limit plate 20 and the second limit plate 21 are fixedly connected to the frame 4 and the guide rail 3 respectively. The bottom of the first limit plate 20 and the second limit plate 21 are connected through the first connecting plate 22. The rear side surface of the first limit plate 20 is flush with the front side surface of the clamping groove 9, and the front side surface of the second limit plate 21 is flush with the rear side surface of the clamping groove 9. The upper end surface of the connecting plate is flush with the lower side surface of the clamping groove 9. The space between the rear side surface of the first limit plate 20 and the front side surface of the second limit plate 21 is the rubber material clamping space. Through the above arrangement, when the sizes of the clamped rubber materials are the same, all the upper and lower front and rear end faces of the rubber material clamped by the central fixing component 2 are kept flush with the upper and lower front and rear end faces of the rubber material clamped by the end fixing plate 1, so that the rubber materials to be bonded are in an aligned state after clamping, and there is no need to consider the alignment problem during bonding. While improving the bonding efficiency, it reduces material waste and significantly reduces production costs.

[0058] As one of the preferred embodiments, Figure 4As shown, a movable locking plate 16 is provided in each of the first limiting plate 20 and the second limiting plate 21. The outer side of the locking plate 16 is connected to the pulling hand 17, and the inner side of the locking plate 16 extends into the space between the first limiting plate 20 and the second limiting plate 21. The locking plate 16 can move outward under the pull of the pulling hand 17. It should be noted that the outer side refers to the side away from the space between the first limiting plate 20 and the second limiting plate 21, and the inner side refers to the side close to the space between the first limiting plate 20 and the second limiting plate 21. For example, the outer side of the locking plate 16 on the first limiting plate 20 refers to its front side, and the inner side refers to its rear side; the outer side of the locking plate 16 on the second limiting plate 21 refers to its rear side, and the inner side refers to its front side. With the above arrangement, when it is necessary to clamp the rubber material to be bonded, the front and rear puller handles 17 are pulled outward, causing the portion of the locking plate 16 extending into the space between the first and second limiting plates 20, 21 to move outward. At this point, the rubber material can be embedded in the space between the first and second limiting plates 20, 21. The puller handles 17 are then pushed inward, causing the locking plates 16 to move inward, locking and clamping the rubber material. Preferably, the puller handles 17 are T-shaped.

[0059] As an embodiment of the present invention, Figure 2 、 Figure 4 As shown, a plurality of through slots 7 are provided at the bottom of the end edge fixing plate 1. The through slots 7 extend through the thickness direction of the end edge fixing plate 1, and the upper end surface of the through slots 7 is flush with the lower end surface of the clamping slot 9. A plurality of support plates 15 are provided on the left and right sides of the first connecting plate 22. The support plates 15 are provided corresponding to the through slots 7 and can be positioned in conjunction with the through slots 7 when bonding the rubber material. It should be noted that the upper end surface of the support plates 15 is flush with the upper end surface of the through slots 7, and the dimensions of the support plates 15 in the front-to-back direction match the dimensions of the through slots 7 in the front-to-back direction, so that the support plates 15 can extend into the through slots 7 to form a fitting position during the bonding operation, thereby ensuring the accuracy of the bonding operation. It should be noted that the plurality of through slots 7 are symmetrically arranged in the front-to-back direction, and preferably there are more than two through slots 7. The number of support plates 15 on a single side of the first connecting plate 22 is consistent with the number of through slots 7 on the corresponding end edge fixing plate 1 on that side.

[0060] Optional, such as Figure 4As shown, clearance grooves 23 are provided on the left and right sides of the first limiting plate 20, the second limiting plate 21, and the first connecting plate 22. These clearance grooves 23 are used to make way for the side walls surrounding the clamping groove 9 during rubber material bonding. It should be understood that when the thickness of the rubber material clamped by the central fixing assembly 2 is relatively thin, there is a possibility that the protruding portion of the rubber material in the clamping groove 9 will not contact the surface of the rubber material in the central fixing assembly 2 to be bonded. The provision of these clearance grooves 23 can expand the range of rubber material thicknesses that the bonding device provided by this embodiment can accommodate, thereby improving its compatibility.

[0061] As one of the preferred embodiments, Figure 4 As shown, a plurality of baffles 14 are provided on the left and right sides of the first limiting plate 20 and on the left and right sides of the second limiting plate 21. These baffles 14 are used to stop and position the rubber material clamped in the central fixing assembly 2. It should be understood that when the central fixing assembly 2 clamps the rubber material, there is a risk of the rubber material tipping to the left or right. The baffles 14 are used to prevent the rubber material from tipping, ensuring smooth bonding. When bonding is required, sliding the baffles 14 outward will not affect normal bonding. Preferably, the distance between the corresponding surfaces of the baffles 14 on the left and right sides of the first limiting plate 20 on a horizontal plane is equal to the thickness of the rubber material being clamped, and the distance between the corresponding surfaces of the baffles 14 on the left and right sides of the second limiting plate 21 on a horizontal plane is equal to the thickness of the rubber material being clamped. This arrangement further enhances the clamping effect of the rubber material, ensuring smooth alignment during bonding. It should be noted that the baffle 14 is made of a material that does not react with the adhesive to ensure smooth bonding of the rubber material. Optionally, the number of baffles 14 installed on a single side of the first limiting plate 20 and the second limiting plate 21 is 2 to 4.

[0062] As one of the optional embodiments, Figure 3 As shown, a handle 10 is provided on a side of the end fixing plate 1 away from the central fixing assembly 2. The handle 10 may be one or more. When there is one, the handle 10 is provided near the center of the end fixing plate 1. Optionally, the handle 10 is fixed to the end fixing plate 1 by bolts or welding.

[0063] Optional, such as Figure 1 As shown, the bonding device further includes a roller 5, which is disposed below the frame 4 and connected to the frame 4. The provision of the roller 5 facilitates the movement of the bonding device, thereby improving its convenience in use.

[0064] Example 2

[0065] This embodiment provides a multi-layer rubber material composite bonding device, comprising an end-edge fixing plate 1, a center fixing assembly 2, guide rails 3, a frame 4, and rollers 5. The rollers 5 are located below and connected to the frame 4. The guide rails 3 are fixed to the frame 4. The end-edge fixing plate 1 is connected to the guide rails 3. The center fixing assembly 2 is fixed to the frame 4 and the guide rails 3 near their left-right centers.

[0066] The end-edge fixing plates 1 are vertically fixed to the guide rails 3 with bolts. Each end-edge fixing plate 1 has four sets of threaded holes in its front and rear center areas and lower end for bolting to the guide rails 3. Two symmetrical through-slots 7 are provided 120 mm from each front and rear edge of the lower end of the end-edge fixing plate 1. The through-slots 7 measure 50 mm in the front-to-back direction.

[0067] A clamping groove 9 is provided on the side of the end side fixing plate 1 facing the center fixing component 2. The front and rear edges of the clamping groove 9 are 30 mm away from the end edge of the end side fixing plate 1. The upper end is flush with the upper end of the end side fixing plate 1, and the lower end is 20 mm away from the lower edge of the end side fixing plate 1. The height of the clamping groove 9 is 15 mm.

[0068] There are 6 mounting through holes 8 at the bottom of the clamping groove 9, which are symmetrically arranged in the front-to-back and up-down directions. The through holes 8 are used to install the vacuum suction cup 11. The diameter of the through holes 8 is 70 mm, the horizontal (front-to-back) center distance between the through holes 8 is 400 mm, and the longitudinal center distance is 200 mm. The center of the through holes 8 near the upper and lower ends of the clamping groove 9 is 140 mm and 80 mm away from the upper and lower ends of the clamping groove 9, respectively.

[0069] A handle 10 is installed in the central area of ​​the back side of the end fixing plate 1 (the side away from the central fixing component 2) and is fixed to the end fixing plate 1 with bolts.

[0070] A vacuum suction cup 11 is installed in each of the mounting holes 8 of the end edge fixing plate 1. The internal structure of the vacuum suction cup 11 is flat with ribs. The vacuum suction cup 11 passes through the mounting hole 8 and is fixed on the central area of ​​the "Π"-shaped support positioning plate 12. The vacuum port on the top of the vacuum suction cup 11 passes through the "Π"-shaped support positioning plate 12 and is connected to the external gas valve 13. Both ends of the "Π"-shaped support positioning plate 12 are fixed to the end edge fixing plate 1 with bolts.

[0071] The central fixing assembly 2 is vertically fixed to the frame 4, and its sides are fixedly connected to the guide rails 3. Four slidable baffles 14 are respectively installed on the first limiting plate 20 and the second limiting plate 21 on the front and rear sides of the central fixing assembly 2. Two baffles 14 are respectively provided on the left and right sides of the first limiting plate 20, and two baffles 14 are respectively provided on the left and right sides of the second limiting plate 21. The lower ends of the first limiting plate 20 and the second limiting plate 21 are connected by a first connecting plate 22, and two supporting plates 15 are respectively provided on the left and right sides of the first connecting plate 22. A locking plate 16 is respectively provided on the front and rear side surfaces of the first limiting plate 20 and the second limiting plate 21. One end of the locking plate 16 extends 5 mm into the inner side surfaces of the first limiting plate 20 and the second limiting plate 21, and the other end is connected to a T-shaped puller 17.

[0072] The guide rail 3 is a linear guide rail, and two upper and lower guide rails 3 are installed on each side of the front and rear sides of the frame 4. A slider 18 that can slide freely on the guide rail 3 is installed at both ends of each guide rail 3. Each slider 18 is connected to an L-shaped second connecting plate 19. A threaded hole is opened on the second connecting plate 19 for connecting to the end fixing plate 1.

[0073] Example 3

[0074] This embodiment provides a method for composite bonding of multiple layers of rubber materials, which is used in the bonding device provided in embodiment 1 or embodiment 2. The bonding method includes:

[0075] Step S1: Connect the vacuum suction cup 11 on the end fixing plate 1 to the vacuum pump;

[0076] Step S2: placing the rubber material in the clamping groove 9 of the end fixing plate 1, with the surface of the rubber material to be coated with the adhesive exposed toward the central fixing component 2;

[0077] Step S3: Turn on the vacuum pump and use vacuum pressure to fix the rubber material on the end fixing plate 1;

[0078] Step S4: placing the middle rubber layer of the multi-layer rubber material in the central fixing assembly 2, pulling open the pulling handle 17, and locking the middle rubber layer with the locking plate 16;

[0079] Step S5: Slide the baffle 14 on one of the left and right sides outward, while keeping the baffle 14 on the other side extended inward;

[0080] Step S6: applying adhesive to the surfaces of the rubber material and the intermediate rubber layer to be bonded;

[0081] Step S7: After the adhesive compounding time is reached, the end fixing plate 1 located at the end of the baffle 14 that slides outward slides along the guide rail 3 toward the central fixing assembly 2, so that the rubber material on the end fixing plate 1 contacts and fits with the middle rubber material in the central fixing assembly 2;

[0082] Step S8: Slide the baffle 14 on the other side outward, and slide the end fixing plate 1 on this side along the guide rail 3 toward the central fixing assembly 2, so that the rubber material on the end fixing plate 1 contacts and fits with the middle rubber material in the central fixing assembly 2;

[0083] Step S9: After the multiple layers of rubber material are completely bonded, turn off the vacuum pump, open the valve 13 of the vacuum suction cup 11, slide the end fixing plate 1 to the left and right ends respectively, open the pulling hand 17, and remove the multiple layers of rubber material from the central fixing component 2 to complete the bonding.

[0084] It should be noted that the outer side refers to the side away from the clamping space of the rubber material, and the inner side refers to the side where the clamping space of the rubber material is located. Opening the pulling hand 17 means pulling the pulling hand 17 in the direction away from the clamping space of the rubber material. The intermediate layer rubber can be a single layer of rubber material or a composite structure formed by bonding two or more layers of rubber material. By repeating the above steps S1 to S9, a multi-layer rubber material composite bonding product with precise size and excellent quality can be produced, and interlayer dislocation defects can be effectively prevented, thereby significantly improving the bonding quality.

[0085] It should be noted that all terms used in the present invention to indicate direction and position, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "top", "lower", "tail end", "head end", "center", etc., are only used to explain the relative positional relationship and connection status between various components in a specific state. They are only for the convenience of describing the present invention, and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0086] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A multi-layer rubber material composite bonding device, characterized in that: include: A frame (4), the frame (4) being used to support other components of the bonding device; A guide rail (3), wherein the guide rail (3) is fixedly arranged on the frame (4); A central fixing component (2), the central fixing component (2) being fixedly arranged on the guide rail (3) and the frame (4), and a rubber material clamping space being provided on the central fixing component (2) for clamping the rubber material in the middle layer during bonding; An end edge fixing plate (1), wherein there are two end edge fixing plates (1), and the two end edge fixing plates (1) are respectively vertically arranged on both sides of the central fixing component (2), and each end edge fixing plate (1) is slidably arranged on a guide rail (3), wherein a clamping groove (9) is provided on a side of each end edge fixing plate (1) facing the central fixing component (2), and the clamping groove (9) is used to clamp the rubber material on one side during bonding; the two end edge fixing plates (1) can respectively move toward the central fixing component (2), and align the rubber material clamped by them with the rubber material clamped by the central fixing component (2) and touch and fit them; The central fixing assembly (2) includes a first limiting plate (20), a second limiting plate (21) and a first connecting plate (22), wherein the first limiting plate (20) is arranged on the front side of the frame (4), and the second limiting plate (21) is arranged on the rear side of the frame (4), the first limiting plate (20) and the second limiting plate (21) are fixedly connected to the frame (4) and the guide rail (3) respectively, the bottoms of the first limiting plate (20) and the second limiting plate (21) are connected via the first connecting plate (22), the rear side surface of the first limiting plate (20) is flush with the front side surface of the clamping groove (9), the front side surface of the second limiting plate (21) is flush with the rear side surface of the clamping groove (9), the upper end surface of the connecting plate is flush with the lower side surface of the clamping groove (9), and the space between the rear side surface of the first limiting plate (20) and the front side surface of the second limiting plate (21) is the rubber material clamping space; A plurality of through slots (7) are provided at the bottom of the end edge fixing plate (1), the through slots (7) passing through the thickness direction of the end edge fixing plate (1), and the upper end surface of the through slot (7) is flush with the lower end surface of the clamping slot (9), and a plurality of support plates (15) are provided on the left and right sides of the first connecting plate (22), respectively, the support plates (15) are provided corresponding to the through slots (7), and can cooperate with the through slots (7) for positioning when the rubber material is bonded.

2. The multi-layer rubber material composite bonding device according to claim 1, characterized in that: The distance between the clamping groove (9) and the front and rear edges of the end edge fixing plate (1) is greater than or equal to 5 mm, and the upper end of the clamping groove (9) is flush with the upper end of the end edge fixing plate (1), and the distance between the lower end of the clamping groove (9) and the lower end edge of the end edge fixing plate (1) is greater than or equal to 10 mm. The length and width of the clamping groove (9) are consistent with the length and width of the rubber material to be clamped, and the height of the clamping groove (9) is less than or equal to the thickness of the rubber material to be clamped.

3. The multi-layer rubber material composite bonding device according to claim 2, characterized in that: The height of the clamping groove (9) is 1 / 2 to 2 / 3 of the thickness of the rubber material to be clamped.

4. The multi-layer rubber material composite bonding device according to claim 1, characterized in that: A plurality of through holes (8) are provided at the bottom of the clamping groove (9), and vacuum suction cups (11) are correspondingly provided in the through holes (8). The vacuum suction cups (11) are used to cooperate with the clamping groove (9) to absorb and clamp the rubber material.

5. The multi-layer rubber material composite bonding device according to claim 4, characterized in that: The number of the vacuum suction cups (11) and the diameter of the vacuum suction cups (11) are determined by the following formula: ， Wherein, D is the diameter of the vacuum suction cup (11), in mm, n is the number of suction cups, W is the adsorption force, in N, P is the vacuum degree, in kPa, and f is the safety factor, f≥1 / 8.

6. The multi-layer rubber material composite bonding device according to claim 1, characterized in that: A movable locking plate (16) is provided in each of the first limiting plate (20) and the second limiting plate (21). The outer side of the locking plate (16) is connected to the pulling hand (17), and the inner side of the locking plate (16) extends into the space between the first limiting plate (20) and the second limiting plate (21). The locking plate (16) can be moved outward when pulled by the pulling hand (17).

7. The multi-layer rubber material composite bonding device according to claim 1, characterized in that: A plurality of baffles (14) that can slide forward and backward are respectively provided on the left and right sides of the first limiting plate (20) and the left and right sides of the second limiting plate (21), and the baffles (14) are used to stop and position the rubber material clamped in the central fixing component (2).

8. A method for composite bonding of multi-layer rubber materials, used in the bonding device according to claim 1, characterized in that: A plurality of through holes (8) are provided at the bottom of the clamping groove (9), and a vacuum suction cup (11) is provided in the through hole (8). Locking plates (16) are provided on the front and rear sides of the central fixing component (2), respectively. The locking plates (16) are connected to the pulling hand (17). The locking plates (16) are used to cooperate with the pulling hand (17) to clamp and lock the rubber material clamped in the central fixing component (2). A plurality of baffles (14) are provided on the left and right sides of the central fixing component (2), respectively. The baffles (14) are used to stop and position the rubber material clamped in the central fixing component (2). The bonding method includes: Step S1: Connect the vacuum suction cup (11) on the end fixing plate (1) to the vacuum pump; Step S2: placing the rubber material in the clamping groove (9) of the end fixing plate (1), with the surface of the rubber material to be coated with the adhesive exposed and facing the central fixing component (2); Step S3: Turn on the vacuum pump and use vacuum pressure to fix the rubber material on the end fixing plate (1); Step S4: placing the middle rubber layer of the multi-layer rubber material in the central fixing component (2), pulling open the pulling handle (17), and locking the middle rubber layer with the locking plate (16); Step S5: sliding the baffle (14) on one of the left and right sides outward, while keeping the baffle (14) on the other side extended inward; Step S6: applying adhesive to the surfaces of the rubber material and the intermediate rubber layer to be bonded; Step S7: After the adhesive compounding time is reached, the end fixing plate (1) located at the end of the baffle (14) that slides outward slides along the guide rail (3) toward the central fixing assembly (2), so that the rubber material on the end fixing plate (1) contacts and fits with the middle rubber material in the central fixing assembly (2); Step S8: Slide the baffle (14) on the other side outward, and slide the end edge fixing plate (1) corresponding to the baffle (14) along the guide rail (3) toward the central fixing assembly (2), so that the rubber material on the end edge fixing plate (1) contacts and fits with the middle rubber material in the central fixing assembly (2); Step S9: After the multiple layers of rubber material are completely bonded, turn off the vacuum pump, open the valve (13) of the vacuum suction cup (11), slide the end fixing plate (1) to the left and right ends respectively, open the pulling hand (17), and remove the multiple layers of rubber material from the central fixing component (2) to complete the bonding.

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