Elastic rubber sheet trimming device

Abstract

The utility model relates to an elastic rubber sheet trimming device which comprises a horizontally-arranged flat supporting table, a machining groove is formed in the flat supporting table, a feeding plate is connected in the machining groove and can horizontally move in the machining groove, an elastic rubber sheet can be placed on the feeding plate, the two ends of the feeding plate are connected with flat extending plates, and positioning parts are arranged on the flat extending plates. The positioning part comprises a support and a positioning pressing plate, the positioning pressing plate is movably connected with the support, positioning nails are arranged on the positioning pressing plate, the positioning pressing plate can move downwards to make contact with the elastic rubber sheets on the feeding plate, and the elastic rubber sheets are positioned through the positioning nails; the elastic rubber sheet edge trimming device has the advantages that the elastic rubber sheet is positioned, the edge is trimmed in the moving process of the elastic rubber sheet, deformation generated in the trimming process of the elastic rubber sheet is reduced, trimming of the edge of the elastic rubber sheet is achieved through multiple times of trimming, a notch is smooth, and the trimming effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of rubber processing technology, specifically relating to a trimming device for elastic rubber sheets. Background Technology

[0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature. After the rubber is processed, it needs to be trimmed according to the accuracy requirements. In the prior art, an adjustable silicone rubber compound sheet cutting device is disclosed, document number: CN109079869A. In this solution, the power supply of the hydraulic actuator is turned on, so that the hydraulic actuator presses the shaft down through the piston rod, thereby driving the support block and the slider to move down. At this time, the blade also moves down, and finally the silicone rubber compound sheet is cut.

[0003] However, due to the elasticity of rubber, when the rubber sheet is cut by stamping in the above scheme, the rubber sheet is easily deformed at the contact point with the blade after being subjected to pressure, which eventually leads to uneven cuts on the rubber sheet, requiring rework and cleaning, resulting in a reduction in overall efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an elastic rubber sheet trimming device that can efficiently trim elastic rubber sheets and achieve good trimming results.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an elastic rubber sheet trimming device, comprising a horizontally arranged flat support platform. The key structural feature is that the flat support platform is provided with a processing groove, and a feeding plate is connected within the processing groove. The feeding plate can move horizontally within the processing groove, and the elastic rubber sheet can be placed on the feeding plate. Flat extension plates are connected to both ends of the feeding plate, and positioning components are provided on the flat extension plates. The positioning components include a bracket and a positioning pressure plate, which is movably connected to the bracket. Positioning pins are provided on the positioning pressure plate, and the positioning pressure plate can move downwards to meet the... The elastic rubber sheet on the feeding plate contacts the positioning pin, which positions the elastic rubber sheet. The processing groove has two rails arranged vertically. The positioned elastic rubber sheet is located between the upper and lower rails. The upper and lower rails are respectively connected to upper and lower slitting blades, and there is a gap between the upper and lower slitting blades. When the elastic rubber sheet moves with the feeding plate, it will pass between the upper and lower slitting blades. The upper and lower rails are also connected to a cutting blade. When the elastic rubber sheet moves with the feeding plate, it first contacts the upper and lower slitting blades, and then contacts the cutting blade.

[0006] Furthermore, two slide blocks are symmetrically fixed on the lower surface of the feeding plate, and the bottom surface of the processing groove is provided with a sliding groove corresponding to the two slide blocks. The lower end of the slide block fits into the corresponding sliding groove and can slide within the sliding groove.

[0007] Furthermore, a vertical plate is installed on the lower surface of the feeding plate, the vertical plate is located between two slides, a chassis is fixed on the vertical plate, a drive motor is installed on the chassis, and the output shaft of the drive motor is fixed to the center of the gear disk.

[0008] Furthermore, the gear disk is connected to the lower surface of the feed plate and located between the two slides. The lower end of the gear disk is engaged with a flat rack, which is set on the bottom surface of the processing groove and located between the two slides.

[0009] Furthermore, the inner wall of the processing groove is provided with a rail groove, and the upper surface of the flat support is provided with a notch groove. The notch groove is connected to the rail groove, and the end of the flat extension plate passes through the rail groove and enters the notch groove. The lower end of the support is located in the notch groove.

[0010] Furthermore, the support includes a crossbeam and two symmetrically arranged support rods. The lower ends of the two support rods are located in the notch groove and fixed to the flat plate, and the two ends of the crossbeam are fixed to the upper ends of the two support rods respectively.

[0011] Furthermore, a longitudinal connecting rod runs through the crossbeam. The upper end of the connecting rod is located above the crossbeam and connected to a baffle plate, while the lower end of the connecting rod is located below the crossbeam and connected to a positioning pressure plate.

[0012] Furthermore, a lower pressure rod is movably connected to the positioning pressure plate. The lower pressure rod extends vertically upward to pass through the crossbeam and is connected to a turntable. The lower pressure rod and the crossbeam are threaded together.

[0013] Furthermore, the lower rail plate is provided with several rollers, which are arranged at equal intervals along the length of the lower rail plate. All rollers can rotate and are tangent to the extended surface of the upper surface of the feeding plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by the gear disk and the rack and pinion meshing, the feeding plate can drive the elastic rubber sheet to move in the processing groove, and by setting flat extension plates on both sides of the feeding plate, the positioning component is connected to the flat extension plate, so that the positioning component positions the elastic rubber sheet, and the positioning component can also move in the same direction as the feeding plate, so that the elastic rubber sheet is always in a stable state.

[0015] By setting upper and lower cutting blades and a cutting blade on the moving path of the elastic rubber sheet, the elastic rubber sheet is cut by the upper and lower cutting blades and the cutting blade in turn during the movement. A certain interval is set between the upper and lower cutting blades so that the upper and lower surfaces of the elastic rubber sheet are cut, but not completely cut off. When it comes into contact with the cutting blade, the cutting blade completely cuts off the elastic rubber sheet.

[0016] This invention positions the elastic rubber sheet and trims its edges during movement, reducing the deformation of the elastic rubber sheet during trimming. Multiple trimmings are used to trim the edges of the elastic rubber sheet, resulting in smooth cuts and a good trimming effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall left-side structure of this utility model;

[0019] Figure 3 This is a top view schematic diagram of the overall structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the feeding device of this utility model;

[0021] Figure 5 This is a schematic diagram showing the connection between the rail groove and the notch groove of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure between the trimming component and the flat support platform of this utility model;

[0023] Among them, 1-flat support platform, 2-positioning component, 3-trimming component, 4-positioning pin, 5-rail groove, 6-processing groove, 7-feeding plate, 8-slide seat, 9-slide groove, 10-flat rack, 11-vertical plate, 12-notch groove, 13-flat extension plate, 14-chassis, 15-drive motor, 16-gear disk, 17-positioning pressure plate, 18-crossbeam, 19-support rod, 20-longitudinal connecting rod, 21-lower pressure rod, 22-turntable, 23-lower rail plate, 24-upper rail plate, 25-upper slitting cutter, 26-lower slitting cutter, 27-cutting cutter, 28-support roller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] See Figures 1 to 3 As shown, an elastic rubber sheet trimming device includes a horizontally arranged flat support platform 1, with a positioning component 2 connected above the flat support platform 1. The elastic rubber sheet can be placed on a feeding device 5 on the flat support platform 1. The positioning component 2 positions the elastic rubber sheet on the feeding device 5. At the same time, a trimming component 3 is also provided on the flat support platform 1. After the positioning component 2 positions the elastic rubber sheet, the trimming component 3 contacts the elastic rubber sheet and trims the edge of the elastic rubber sheet.

[0027] The aforementioned flat support 1 has a processing groove 6. A feeding device 5 is connected to the processing groove 6. The feeding device 5 includes a feeding plate 7. An elastic rubber sheet can be placed on the feeding plate 7. The feeding plate 7 can drive the elastic rubber sheet to move horizontally within the processing groove 6 until both the feeding plate 7 and the elastic rubber sheet have moved to below the positioning component 2. Specifically:

[0028] See Figure 4As shown, two slide blocks 8 are symmetrically fixed on the lower surface of the feeding plate 7. Slide grooves 9 corresponding to the two slide blocks 8 are symmetrically opened on the bottom surface of the processing groove 6. The lower ends of the slide blocks 8 fit into the corresponding slide grooves 9 and can slide along the length of the slide grooves 9. A flat rack 10 is also provided between the two slide grooves 9. A vertical plate 11 is installed on the lower surface of the feeding plate 7, located between the two slide blocks 8 and perpendicular to the feeding plate 7. A base plate 14 is fixedly connected to the vertical plate 11, and a drive motor 15 is installed on the base plate 14. The output shaft of the drive motor 15 can rotate. At this time, a gear disk 16 is connected to the lower surface of the feeding plate 7, also located between the two slide blocks 8 and meshing with the flat rack 10. The output shaft of the drive motor 15 is fixedly connected to the center of the gear disk 16. When the output shaft of the drive motor 15 rotates, the gear disk 16 also rotates. In the initial state, the drive motor 15 is not working. The gear disk 16 meshes with the flat rack 10 and is located at one end of the flat rack 10. At the same time, the slide block 8, the slide rod 13 and the gear disk 16 are all located on the same side of the processing groove 6. The elastic rubber sheet is placed on the feeding plate 7. The length and width of the feeding plate 7 must be smaller than the length and width of the elastic rubber sheet to ensure that the edge of the elastic rubber sheet is outside the feeding plate 7 for easy cutting. Then, the drive motor 15 is controlled to run. The output shaft of the drive motor 15 starts to rotate, and the gear disk 16 rotates accordingly. Due to the meshing of the gear disk 16 with the flat rack 10, the gear disk 16 will drive the feeding plate 7 to move horizontally along the length direction of the flat rack 10.

[0029] Before the feeding plate 7 is moved, the rubber sheet needs to be positioned by the positioning component 2. That is, the rubber sheet is clamped and positioned by the positioning component 2 and the feeding plate 7, so that the rubber sheet can move together with the feeding plate. During the process of the feeding plate 7 moving along the length direction of the flat toothed rack 10, the edge of the clamped rubber sheet is tangent to the trimming component.

[0030] See Figure 2As shown, the positioning component 2 includes a bracket and a positioning pressure plate 17. The bracket is a gate-shaped frame, including a crossbeam 18 and two symmetrically arranged support rods 19. The two support rods 19 are respectively arranged on both sides of the processing groove 6, and the lower ends of the support rods 19 are connected to the feeding plate. The crossbeam 18 is located between the two support rods 19, and both ends of the crossbeam 18 are fixed to the upper ends of the two support rods 19 respectively. A longitudinal connecting rod 20 runs through the crossbeam 18. There are two longitudinal connecting rods 20, which are symmetrically arranged. The upper end of the longitudinal connecting rod 20 is located above the crossbeam 18 and is connected to a baffle plate. The lower end of the longitudinal connecting rod 20 is located below the crossbeam 18 and is connected to the positioning pressure plate 17. The length and width of the positioning pressure plate 17 are... The length and width of the feeding plate 7 are the same. At the same time, a lower pressure rod 21 is set at the center of the positioning pressure plate 17. The lower end of the lower pressure rod 21 is movably connected to the upper surface of the positioning pressure plate 17. The upper end of the lower pressure rod 21 extends vertically upward to pass through the crossbeam 18 and is connected to the turntable 22. The lower pressure rod 21 and the crossbeam 18 are screwed together. When the turntable 22 is turned, the lower pressure rod 21 can move vertically and drive the positioning pressure plate 17 to move vertically, so that the positioning pressure plate 17 contacts the elastic rubber sheet on the lower feeding plate 7 and presses and positions the elastic rubber sheet, ensuring that the elastic rubber sheet is always in a stable state and does not shift when the trimming part 3 trims the edge of the elastic rubber sheet.

[0031] To reduce the deformation of the rubber sheet when it is clamped and positioned, several threaded holes are provided on the positioning plate 17. A positioning pin 4 is screwed into each threaded hole. The positioning pin 4 is screwed into the positioning plate 17. When the positioning pin 4 rotates, it can be controlled to move axially, thereby adjusting the distance between the lower end of the positioning pin 4 and the lower surface of the positioning plate. By setting the positioning pin, the stability of the rubber sheet when it is clamped can be increased, while reducing the amount of deformation of the rubber sheet.

[0032] When the support rod 19 is connected to the feeding plate, the two inner sidewalls of the processing groove 6 are provided with rail grooves 5. The rail grooves 5 are parallel to the flat rack 10 and both extend in the same direction. At this time, the upper surface of the flat support table 1 is provided with two long strip notch grooves 12. The two notch grooves 12 are parallel to each other, and the processing groove 6 is located between the two notch grooves 12. Each notch groove 12 is connected to the corresponding rail groove 5. The lower end of the support rod 9 is located in the notch groove 12. A flat extension plate 13 is fixed on the feeding plate 7. The end of the flat extension plate 13 passes through the rail groove 5 and enters the notch groove 12. At this time, the lower end of the support rod 9 is fixed on the flat extension plate 13. Thus, when the feeding plate 7 moves, it can drive the positioning component 2 to move at the same time.

[0033] See Figure 3 , Figures 5 to 6As shown, the trimming component 3 is located in the processing groove 6. During the process of the rubber sheet moving along the length direction of the flat toothed rack 10 with the feeding plate, the rubber sheet comes into contact with the trimming component 3 and is trimmed by the trimming component 3.

[0034] The trimming component 3 includes two rails arranged vertically. The lower rail 23 is located above the flat extension plate 13, while the horizontal height of the upper rail 24 is greater than the horizontal height of the upper surface of the feeding plate 7, meaning the rubber sheet is located between the upper and lower rails. The ends of the upper and lower rails are fixed to the flat support table 1. Two slitting blades are arranged between the upper and lower rails: an upper slitting blade 25 and a lower slitting blade 26. The upper slitting blade 25 is fixed to the lower surface of the upper rail 24, and the lower slitting blade 26 is fixed to the upper surface of the lower rail 23. There is a gap between the two slitting blades, and the sides of the two slitting blades that are close to each other are cutting edges. When the rubber sheet moves with the feeding plate, the rubber sheet is cut by the two slitting blades. As the blades pass between the rubber sheet, cuts are formed on both the upper and lower surfaces, but the excess edges of the rubber sheet are not cut off. A cutting blade 27 is also provided between the upper rail plate 24 and the lower rail plate 23. The cutting blade 27 is connected to both the upper rail plate 24 and the lower rail plate 23. After the cuts are formed on the surface of the rubber sheet, as the feeding plate continues to move, the rubber sheet comes into contact with the cutting blade 27. The cutting blade 27, the upper cutting blade 25 and the lower cutting blade 26 are located on the same vertical plane. The cutting edge of each blade is located on the same vertical plane as the side surface of the feeding plate 7. At this time, the cutting blade 27 cuts the uncut parts of the rubber sheet, which can avoid large deformation of the rubber sheet when it is trimmed.

[0035] Several rollers 28 are also provided on the lower rail plate 23. The rollers 28 are arranged at equal intervals along the length of the lower rail plate 23. Each roller 28 can rotate. The roller 28 is tangent to the extended surface of the upper surface of the feeding plate 7. During the trimming of the rubber sheet, the part to be cut off is supported by the rollers.

[0036] The structural design of this device can effectively reduce the deformation of the rubber sheet during cutting, thereby ensuring a smooth notch and avoiding over-cutting, thus achieving precise cutting.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A trimming device for an elastic rubber sheet, comprising a horizontally arranged flat support platform, characterized in that: The flat support platform is provided with a processing groove, and a feeding plate is connected inside the processing groove. The feeding plate can move horizontally inside the processing groove. An elastic rubber sheet can be placed on the feeding plate. Flat extension plates are connected to both ends of the feeding plate. A positioning component is provided on the flat extension plate. The positioning component includes a bracket and a positioning pressure plate. The positioning pressure plate is movably connected to the bracket. A positioning pin is provided on the positioning pressure plate. The positioning pressure plate can move downward to contact the elastic rubber sheet on the feeding plate. The positioning pin positions the elastic rubber sheet. The processing groove is provided with two rail plates arranged vertically. The positioned elastic rubber sheet is located between the upper and lower rail plates. The upper and lower rail plates are respectively connected to upper and lower cutting blades. There is a gap between the upper and lower cutting blades. When the elastic rubber sheet moves with the feeding plate, the elastic rubber sheet will pass between the upper and lower cutting blades. A cutting blade is also connected between the upper and lower rails. When the elastic rubber sheet moves with the feeding plate, it first contacts the upper and lower cutting blades, and then contacts the cutting blade.

2. The elastic rubber sheet trimming device according to claim 1, characterized in that: The lower surface of the feeding plate is symmetrically fixed with two slide blocks. The bottom surface of the processing groove is provided with slide grooves corresponding to the two slide blocks. The lower end of the slide block fits into the corresponding slide groove and can slide within the slide groove.

3. The elastic rubber sheet trimming device according to claim 2, characterized in that: A vertical plate is installed on the lower surface of the feeding plate. The vertical plate is located between two slides. A chassis is fixed on the vertical plate. A drive motor is installed on the chassis. The output shaft of the drive motor is fixed to the center of the gear disk.

4. The elastic rubber sheet trimming device according to claim 3, characterized in that: The gear disk is connected to the lower surface of the feeding plate and located between two slides. The lower end of the gear disk is engaged with a flat rack, which is set on the bottom surface of the processing groove and located between two slides.

5. The elastic rubber sheet trimming device according to claim 1, characterized in that: The inner wall of the processing groove is provided with a rail groove, and the upper surface of the flat support is provided with a notch groove. The notch groove is connected to the rail groove. The end of the flat extension plate passes through the rail groove and enters the notch groove. The lower end of the support is located in the notch groove.

6. The elastic rubber sheet trimming device according to claim 5, characterized in that: The bracket includes a crossbeam and two symmetrically arranged support rods. The lower ends of the two support rods are located in the notch groove and fixed to the flat plate. The two ends of the crossbeam are respectively fixed to the upper ends of the two support rods.

7. The elastic rubber sheet trimming device according to claim 6, characterized in that: A longitudinal connecting rod runs through the crossbeam. The upper end of the connecting rod is located above the crossbeam and is connected to a baffle plate. The lower end of the connecting rod is located below the crossbeam and is connected to a positioning pressure plate.

8. The elastic rubber sheet trimming device according to claim 7, characterized in that: The positioning plate is movably connected to a lower pressure rod, which extends vertically upward to pass through the crossbeam and connect to a turntable. The lower pressure rod and the crossbeam are threaded together.

9. The elastic rubber sheet trimming device according to claim 1, characterized in that: The lower rail plate is provided with several rollers, which are arranged at equal intervals along the length of the lower rail plate. All rollers can rotate and are tangent to the extended surface of the upper surface of the feeding plate.

Images