Trimming device for vulcanized rubber pad

Abstract

A vulcanized rubber pad flash cutting device comprises a workbench (1), a first die fixing roller (2), a second die fixing roller (3) and a flash cutting assembly, an electric rotating disc (5) is arranged on the workbench (1), and the first die fixing roller (2) and the second die fixing roller (3) are symmetrically installed on the portions, on the two sides of the electric rotating disc (5), of the workbench (1). The second die fixing roller (3) is movably mounted on the workbench (1); the trimming device has the advantages that the die is positioned and rotated, the pair of cutting blades can rapidly cut the inner circle and outer circle trimmings of the top of the insulation sleeve, the trimmings are cleaned up and tidily, and the working efficiency and the product quality are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber processing, in particular to a vulcanized rubber pad flash cutting device. Background Art

[0002] Vulcanization, also known as aging, is a process in which cross-linking agents such as vulcanizers and accelerators are added to rubber to obtain shaped rubber products under certain temperature and pressure. During the production process of vulcanized rubber insulating sleeves, more flash will be produced on the top of the sleeves. The insulating sleeves are elastic and soft in texture. Manual trimming is time-consuming and labor-intensive, and will cause uneven edges, affecting product quality. Utility Model Content

[0003] The purpose of the utility model is to provide a vulcanized rubber pad flash cutting device in view of the above-mentioned shortcomings.

[0004] The utility model comprises a workbench, a first mold fixing roller, a second mold fixing roller and a flash cutting assembly, wherein an electric turntable is arranged on the workbench, the first mold fixing roller and the second mold fixing roller are symmetrically mounted on the workbench at two sides of the electric turntable, and the second mold fixing roller is movably mounted on the workbench; the flash cutting assembly comprises a positioning roller, a knife holder and a pair of cutting blades, a support rod is arranged on the workbench, the positioning roller and the knife holder can be adjustably mounted on the support rod, and the pair of cutting blades can be adjustably mounted on the knife holder through knife seats respectively.

[0005] The first mold fixing roller and the second mold fixing roller have the same structure, both of which include a U-shaped mounting frame and two vertical guide rollers mounted at the ends of the U-shaped mounting frame. The U-shaped mounting frame of the second mold fixing roller is hinged on the workbench through a pin shaft.

[0006] A transverse guide rod is arranged on the support rod, and a vertical telescopic rod is movably connected to the transverse guide rod, and the positioning roller and the knife holder are both arranged on the vertical telescopic rod.

[0007] An adjusting limit nut is arranged at the end of the transverse guide rod, and a tightening spring for tightening the vertical telescopic rod is arranged on the transverse guide rod.

[0008] The vertical telescopic rod includes a fixed rod section and a movable rod section. The movable rod section has a hollow structure. The movable rod section is sleeved on the fixed rod section. Limit blocks are respectively provided on both sides of the fixed rod section. Vertical avoidance holes matching with the limit blocks are respectively provided on both sides of the movable rod section. The fixed rod section and the movable rod section are stretched apart by a pair of elastic members. The fixed rod section is movably installed on the transverse guide rod. The positioning roller and the tool holder are both fixedly installed on the movable rod section.

[0009] The elastic member is a silicone rubber band, and a hook connected to the elastic member is provided at the bottom end of the fixed rod section and the top end of the movable rod section.

[0010] A guide hole is arranged on the knife seat, the knife seat is movably sleeved on the knife holder and is locked by a screw rod, and a scale mark is arranged on the knife holder.

[0011] The utility model has the advantages that a pair of cutting blades can quickly cut the inner and outer flash edges of the top of the insulating sleeve by positioning and rotating the mold, and the flash edges are cleaned up neatly, which greatly improves the work efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the usage status structure.

[0014] Figure 3 It is a schematic diagram of the structure of the flash cutting component.

[0015] Figure 4 yes Figure 3 Schematic diagram of the partially enlarged structure. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0018] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, if the terms "first", "second", etc. appear in the description of the present utility model, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] As shown in the accompanying drawings, the utility model includes a workbench 1, a first mold fixing roller 2, a second mold fixing roller 3 and a flash cutting assembly. The workbench 1 is provided with an electric turntable 5. The first mold fixing roller 2 and the second mold fixing roller 3 are symmetrically installed on the workbench 1 on both sides of the electric turntable 5, and the second mold fixing roller 3 is movably installed on the workbench 1; the flash cutting assembly includes a positioning roller 6, a tool holder 7 and a pair of cutting blades 8. The workbench 1 is provided with a support rod 9. The positioning roller 6 and the tool holder 7 can be adjustably installed on the support rod 9, and the pair of cutting blades 8 can be adjustably installed on the tool holder 7 through tool holders 10 respectively.

[0021] The vulcanization mold of the insulating sleeve includes a male mold 22, a female mold 23 and a cover body, all of which are cylindrical structures. The female mold 23 is sleeved on the male mold 22, and the axis of the male mold 22 is a cylindrical structure. In this case, the cover body is removed during the cutting process, so it is not shown in the figure.

[0022] After vulcanization, the mold cover is opened, the mold is moved to the electric turntable 5, and clamped by the first mold fixing roller 2 and the second mold fixing roller 3. The electric turntable 5 is started to drive the mold to rotate together. The staff moves the flash cutting assembly to the position that needs to be cut. During the rotation of the mold, a pair of cutting blades 8 cuts the flash on the top of the insulating sleeve 25. After completion, the flash cutting assembly is removed, the electric turntable 5 is closed, the mold is taken away, and the mold is opened to take out the insulating sleeve 25.

[0023] The positioning roller 6 is used to be close to the inner wall of the male mold 22 to limit the maximum cutting position of the pair of cutting blades 8. The spacing between the pair of cutting blades 8 is adjusted according to the actual size of the insulating sleeve 25. When cutting, the flash on both sides of the insulating sleeve 25 is cut simultaneously by the pair of cutting blades 8.

[0024] Preferably, the first mold fixing roller 2 and the second mold fixing roller 3 have the same structure, both including a U-shaped mounting frame and two vertical guide rollers installed at the ends of the U-shaped mounting frame, and the U-shaped mounting frame of the second mold fixing roller 3 is hinged on the workbench 1 through a pin shaft.

[0025] In this case, the first mold fixing roller 2 is fixedly mounted on the workbench 1, and the second mold fixing roller 3 can swing on the workbench 1, so as to facilitate the mold to be moved in and out on the electric turntable 5. When in use, the second mold fixing roller 3 is opened outward, the mold is moved onto the electric turntable 5, and then the second mold fixing roller 3 is reset and pressed against the mold. When the electric turntable 5 is started and rotates with the mold, the mold is adjusted to keep the same axis as the electric turntable 5.

[0026] Furthermore, a transverse guide rod 12 is provided on the support rod 9 , and a vertical telescopic rod 13 is movably connected to the transverse guide rod 12 , and the positioning roller 6 and the tool holder 7 are both installed on the vertical telescopic rod 13 .

[0027] An adjusting limit nut 15 is disposed at the end of the transverse guide rod 12 , and a tightening spring 16 for tightening the vertical telescopic rod 13 is disposed on the transverse guide rod 12 .

[0028] The adjusting limit nut 15 is used to limit the maximum moving position of the vertical telescopic rod 13, and the tightening spring 16 is used to tighten the vertical telescopic rod 13, that is, to position the pair of cutting blades 8 at the maximum cutting position when cutting.

[0029] Preferably, the vertical telescopic rod 13 includes a fixed rod section 17 and a movable rod section 18. The movable rod section 18 is a hollow structure. The movable rod section 18 is sleeved on the fixed rod section 17. Limit blocks 19 are respectively provided on both sides of the fixed rod section 17. Vertical avoidance holes matching with the limit blocks 19 are respectively provided on both sides of the movable rod section 18. The fixed rod section 17 and the movable rod section 18 are stretched apart by a pair of elastic members 20. The fixed rod section 17 is movably installed on the transverse guide rod 12. The positioning roller 6 and the tool holder 7 are both fixedly installed on the movable rod section 18.

[0030] In the default state, the fixed rod section 17 and the movable rod section 18 are stretched out through a pair of elastic members 20. Under the action of external force, the movable rod section 18 can be moved upward, so that the fixed rod section 17 is retracted into the movable rod section 18, and at the same time, the entire vertical telescopic rod 13 moves toward one end of the support rod 9, so that the positioning roller 6 can be moved out of the mold. On the contrary, when the mold needs to be moved to the electric turntable 5 for cutting, the thrust applied to the movable rod section 18 and the entire vertical telescopic rod 13 is released, and the positioning roller 6 can automatically stick to the inner wall of the male mold 22, and the pair of cutting blades 8 are also fixed at the cutting position.

[0031] Preferably, the elastic member 20 is a silicone rubber band, and a hook for connecting the elastic member 20 is provided at the bottom end of the fixed rod section 17 and the top end of the movable rod section 18 .

[0032] Since the temperature of the mold is high when it is removed from the vulcanizer, generally reaching nearly 100°C, silicone rubber bands are resistant to high temperatures and can work in environments within 200°C, and can effectively maintain their elasticity in high temperature environments.

[0033] A guide hole is provided on the knife holder 10, and the knife holder 10 is movably sleeved on the knife holder 7 and locked by a screw, and a scale mark is provided on the knife holder 7. The distance between the two cutting blades 8 can be quickly adjusted through the scale mark.

Claims

1. A device for cutting flash of vulcanized rubber pad, characterized in that The invention comprises a workbench (1), a first mold fixing roller (2), a second mold fixing roller (3) and a flash cutting assembly. The workbench (1) is provided with an electric turntable (5). The first mold fixing roller (2) and the second mold fixing roller (3) are symmetrically mounted on the workbench (1) on both sides of the electric turntable (5). The second mold fixing roller (3) is movably mounted on the workbench (1). The flash cutting assembly comprises a positioning roller (6), a knife holder (7) and a pair of cutting blades (8). The workbench (1) is provided with a support rod (9). The positioning roller (6) and the knife holder (7) are both adjustably mounted on the support rod (9). The pair of cutting blades (8) are adjustably mounted on the knife holder (7) through knife seats (10).

2. A vulcanized rubber pad flash cutting device according to claim 1, characterized in that The first mold fixing roller (2) and the second mold fixing roller (3) have the same structure, both comprising a U-shaped mounting frame and two vertical guide rollers mounted on the ends of the U-shaped mounting frame, and the U-shaped mounting frame of the second mold fixing roller (3) is hinged on the workbench (1) via a pin shaft.

3. A vulcanized rubber pad flash cutting device according to claim 1, characterized in that A transverse guide rod (12) is provided on the support rod (9), and a vertical telescopic rod (13) is movably connected to the transverse guide rod (12), and the positioning roller (6) and the knife holder (7) are both mounted on the vertical telescopic rod (13).

4. A vulcanized rubber pad flash cutting device according to claim 3, characterized in that An adjusting limit nut (15) is provided at the end of the transverse guide rod (12), and a tightening spring (16) for tightening the vertical telescopic rod (13) is provided on the transverse guide rod (12).

5. A vulcanized rubber pad flash cutting device according to claim 4, characterized in that The vertical telescopic rod (13) comprises a fixed rod section (17) and a movable rod section (18). The movable rod section (18) is a hollow structure. The movable rod section (18) is sleeved on the fixed rod section (17). Limit blocks (19) are respectively provided on both sides of the fixed rod section (17). Vertical avoidance holes matching the limit blocks (19) are respectively provided on both sides of the movable rod section (18). The fixed rod section (17) and the movable rod section (18) are stretched apart via a pair of elastic members (20). The fixed rod section (17) is movably mounted on the transverse guide rod (12). The positioning roller (6) and the tool holder (7) are both fixedly mounted on the movable rod section (18).

6. A vulcanized rubber pad flash cutting device according to claim 5, characterized in that The elastic member (20) is a silicone rubber band, and a hook for connecting the elastic member (20) is provided at the bottom end of the fixed rod section (17) and the top end of the movable rod section (18).

7. The flash cutting device for vulcanized rubber pad according to claim 1, characterized in that A guide hole is provided on the knife seat (10), and the knife seat (10) is movably sleeved on the knife holder (7) and locked by a screw, and the knife holder (7) is provided with a scale mark.

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