Vulcanized rubber insulation sleeve trimming and mold opening system

Abstract

A trimming and mold opening system for a vulcanized rubber insulation sleeve comprises a workbench (1), a trimming device and a mold opening device, the trimming device and the mold opening device are respectively installed on the workbench (1), and the trimming device comprises a first mold fixing roller (2), a second mold fixing roller (3) and a flash cutting assembly. And a pair of cutting blades can rapidly cut flashes of the inner circle and the outer circle of the top of the insulation sleeve, the flashes are cleaned up and tidily, and the working efficiency and the product quality are greatly improved. The rotating disc and the mold positioning seat are matched to quickly position the mold, the upper mold fixing seat and the lower mold fixing seat are respectively inserted into a mold opening gap between the male mold and the female mold, and the female mold is pulled downwards through the lifting platform to be separated from the male mold, so that convenience is provided for mold opening and part taking by a worker, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vulcanized rubber processing, in particular to a trimming and die-cutting system for a vulcanized rubber insulating sleeve. 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.

[0003] The rubber insulating sleeve is a cylindrical structure with an edge at one end. Its vulcanization mold consists of a cylindrical male mold, a female mold and a cover body. A circle of bosses with the same diameter as the male mold is provided at the bottom of the female mold. When in use, the female mold is sleeved on the male mold. A mold opening gap is provided between the boss of the female mold and the bottom of the male mold, and a pry bar insertion groove is symmetrically provided at the mold opening gap. After vulcanization is completed, the staff needs to separate the male mold and the female mold at the mold opening gap by using the pry bar. Since the mold temperature after vulcanization is relatively high, it brings certain troubles to the staff when opening the mold. Utility Model Content

[0004] The purpose of the utility model is to provide a trimming and mold opening system for a vulcanized rubber insulating sleeve in view of the above-mentioned shortcomings.

[0005] The utility model comprises a workbench and a trimming device and a mold opening device respectively installed on the workbench.

[0006] The trimming device includes a first mold fixing roller, a second mold fixing roller and a flash cutting assembly. An electric turntable is provided on the workbench. The first mold fixing roller and the second mold fixing roller are symmetrically mounted on the workbench on both sides of the electric turntable. The second mold fixing roller is movably mounted on the workbench. The flash cutting assembly includes a positioning roller, a knife holder and a pair of cutting blades. A support rod is provided on the workbench. The positioning roller and the knife holder can be adjustably mounted on the support rod. The pair of cutting blades are adjustably mounted on the knife holder through knife seats.

[0007] The mold opening device includes a rotating disk installed on a workbench, a lifting platform is provided on the workbench for driving the rotating disk to move up and down, a mold positioning seat is provided on the workbench on one side of the rotating disk, and a pair of upper mold fixing seats and a pair of lower mold fixing seats are symmetrically provided on the workbench on both sides adjacent to the mold positioning seat.

[0008] 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.

[0009] 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.

[0010] An adjustment limit nut is provided at the end of the transverse guide rod, and a tightening spring for tightening the vertical telescopic rod is provided on the transverse guide rod; 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, and limit blocks are respectively provided on both sides of the fixed rod section, and vertical avoidance holes matching 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, and the positioning roller and the tool holder are fixedly installed on the movable rod section.

[0011] 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.

[0012] 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.

[0013] The workbench is provided with a rotating disk mounting hole, and the rotating disk is movably mounted in the rotating disk mounting hole through a lifting platform; and the lifting platform is a manual lifting platform.

[0014] Upper die fixing seat mounting grooves are respectively arranged on both sides of the rotating disk mounting hole, and a pair of upper die fixing seats are symmetrically and movably installed in the upper die fixing seat mounting grooves; the lower die fixing seat is symmetrically and movably installed on the lifting platform, and the upper die fixing seat is provided with a lower die fixing seat avoidance groove, and the lower die fixing seat is located in the lower die fixing seat avoidance groove.

[0015] A transverse slide groove is arranged in the installation groove of the upper die fixing seat, and a guide block cooperating with the transverse slide groove is arranged on the upper die fixing seat; a pair of transverse guide rails are arranged on the lifting platform, and the lower die fixing seat is installed on the slider of the transverse guide rails; a rotating disk avoidance groove is arranged on the lower die fixing seat.

[0016] A pair of vertical guide rollers are symmetrically arranged on the mold positioning seat.

[0017] 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.

[0018] The mold can be quickly positioned by cooperating with the rotating disk and the mold positioning seat. The upper mold fixing seat and the lower mold fixing seat are respectively inserted into the mold opening gap between the male mold and the female mold. The female mold is pulled down by the lifting platform to separate it from the male mold. This provides convenience for our staff to open the mold and take out the parts, reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model.

[0020] Figure 2 It is a structural diagram of the trimming device in use status.

[0021] Figure 3 It is a schematic diagram of the structure of the flash cutting component.

[0022] Figure 4 yes Figure 3 Schematic diagram of the partially enlarged structure.

[0023] Figure 5 It is a structural diagram of the mold opening device in use status.

[0024] Figure 6 It is a schematic diagram of the internal structure of the mold opening device. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] As shown in the accompanying drawings, the utility model comprises a workbench 1 and a trimming device and a mold opening device respectively installed on the workbench 1.

[0030] The trimming device includes a first mold fixing roller 2, a second mold fixing roller 3 and a flash cutting assembly. An electric turntable 5 is provided on the workbench 1. 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. 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. A support rod 9 is provided on the workbench 1. The positioning roller 6 and the tool holder 7 can be adjustably installed on the support rod 9. The pair of cutting blades 8 are adjustably installed on the tool holder 7 through tool holders 10 respectively.

[0031] The vulcanization mold of the insulating sleeve includes a male mold 40, a female mold 41 and a cover body, all of which are cylindrical structures. The female mold 41 is sleeved on the male mold 40, and the axis of the male mold 40 is a cylindrical structure. In this case, the cover body is removed during the cutting process, so it is not shown in the figure.

[0032] 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 45. After completion, the flash cutting assembly is removed, the electric turntable 5 is closed, the mold is removed, and the mold is moved to the mold opening device. The mold is opened and the insulating sleeve 45 is taken out.

[0033] The positioning roller 6 is used to be close to the inner wall of the male mold 40 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 45. During cutting, the flash on both sides of the insulating sleeve 45 is cut simultaneously by the pair of cutting blades 8.

[0034] 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 at the ends of the U-shaped mounting frame. The U-shaped mounting frame of the second mold fixing roller 3 is hinged on the workbench 1 through a pin shaft.

[0035] 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.

[0036] 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 .

[0037] 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 .

[0038] 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.

[0039] 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.

[0040] 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 40, and the pair of cutting blades 8 are also fixed at the cutting position.

[0041] The elastic member 20 is a silicone rubber band, and a hook connected to 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 .

[0042] 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.

[0043] 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.

[0044] The mold opening device includes a rotating disk 24 installed on the workbench 1, and a lifting platform 25 is provided on the workbench 1 to drive the rotating disk 24 to move up and down. A mold positioning seat 26 is provided on the workbench 1 on one side of the rotating disk 24, and a pair of upper mold fixing seats 27 and a pair of lower mold fixing seats 28 are symmetrically and movably provided on the workbench 1 on both sides adjacent to the mold positioning seat 26.

[0045] The mold is placed on the rotating disk 24 and positioned by the mold positioning seat 26 so that the mold and the rotating disk 24 are located on the same axis, and then a pair of upper mold fixing seats 27 and a pair of lower mold fixing seats 28 are brought close to the mold. The top ends of the upper mold fixing seats 27 and the lower mold fixing seats 28 are provided with hooks bent inward, and the hooks are inserted into the gap between the female mold and the male mold. The fixed disk of the rotating disk 24 is fixedly connected to the lifting platform 25. After the lifting platform 25 is started, it moves downward with the rotating disk 24 and the pair of lower mold fixing seats 28. When the mold is opened, the upper mold fixing seat 27 is relatively fixed, and the lower mold fixing seat 28 pulls the female mold downward to separate it from the male mold, and the staff can quickly remove the rubber insulating sleeve and the male mold.

[0046] A rotating disk installation hole is provided on the workbench 1 , and the rotating disk 24 is movably installed in the rotating disk installation hole through the lifting platform 25 .

[0047] The lifting platform 25 is a manual lifting platform. Since the rubber insulator has good elasticity after vulcanization, it will tightly expand and fit the male mold and the female mold. The manual lifting platform in this case is a worm gear lifting platform, and the mold opening speed can be adjusted automatically according to the mold opening resistance through the manual lifting platform.

[0048] Upper die fixing seat mounting grooves are respectively provided on both sides of the rotating disk mounting hole, and a pair of upper die fixing seats 27 are symmetrically and movably installed in the upper die fixing seat mounting grooves; the lower die fixing seat 28 is symmetrically and movably installed on the lifting platform 25, and the upper die fixing seat 27 is provided with a lower die fixing seat avoidance groove, and the lower die fixing seat 28 is located in the lower die fixing seat avoidance groove.

[0049] A transverse slide groove is provided in the installation groove of the upper mold fixing seat, and a guide block matching the transverse slide groove is provided on the upper mold fixing seat 27; a pair of transverse guide rails 30 are provided on the lifting platform 25, and the lower mold fixing seat 28 is installed on the slider of the transverse guide rail 30.

[0050] When the mold is opened and positioned, the lower mold fixing seat 28 enters into the upper mold fixing seat 27, the two are located on the same horizontal plane and aligned, and the hook head is an arc surface that matches the mold. When the lifting platform 25 starts to move the rotating disk 24 and the lower mold fixing seat 28 downward, the upper mold fixing seat 27 remains stationary, thereby separating the female mold and the male mold.

[0051] The lower die fixing seat 28 moves laterally through the transverse guide rail 30, and the upper die fixing seat 27 moves laterally through the guide block and the transverse slide groove.

[0052] The lower die fixing seat 28 is provided with a rotating disk avoidance groove. When the mold is opened, a part of the rotating disk 24 is inserted into the rotating disk avoidance groove of the lower die fixing seat 28, so that the rotating disk 24 and the lower die fixing seat 28 are connected as one body, which is more stable when the lifting platform 25 is pulled downward.

[0053] A pair of vertical guide rollers 33 are symmetrically arranged on the mold positioning seat 26. Through the two-point positioning of the pair of vertical guide rollers 33, the rotating disk 24 can be quickly positioned and the direction can be adjusted.

Claims

1. A trimming and mold opening system for vulcanized rubber insulating sleeves, characterized in that It comprises a workbench (1) and a trimming device and a mold opening device respectively mounted on the workbench (1). The trimming device comprises a first mold fixing roller (2), a second mold fixing roller (3) and a flash cutting assembly. An electric turntable (5) is provided on the workbench (1). 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). A support rod (9) is provided on the workbench (1). 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) via knife holders (10). The mold opening device comprises a rotating disk (24) mounted on a workbench (1); a lifting platform (25) is provided on the workbench (1) for driving the rotating disk (24) to move up and down; a mold positioning seat (26) is provided on the workbench (1) located on one side of the rotating disk (24); and a pair of upper mold fixing seats (27) and a pair of lower mold fixing seats (28) are symmetrically and movably provided on the workbench (1) on two sides adjacent to the mold positioning seat (26).

2. A vulcanized rubber insulating sleeve trimming and mold opening system 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 insulating sleeve trimming and mold opening system 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 trimming and mold opening system for a vulcanized rubber insulating sleeve according to claim 3, characterized in that An adjustment limit nut (15) is provided at the end of the transverse guide rod (12), and a tensioning spring (16) for tensioning the vertical telescopic rod (13) is provided on the transverse guide rod (12); the vertical telescopic rod (13) comprises a fixed rod section (17) and a movable rod section (18), the movable rod section (18) being a hollow structure, the movable rod section (18) being sleeved on the fixed rod section (17), and limit blocks (19) are respectively provided on both sides of the fixed rod section (17), and 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 through a pair of elastic members (20), the fixed rod section (17) is movably mounted on the transverse guide rod (12), and the positioning roller (6) and the tool holder (7) are both fixedly mounted on the movable rod section (18).

5. A trimming and mold opening system for a vulcanized rubber insulating sleeve according to claim 4, 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).

6. A vulcanized rubber insulating sleeve trimming and mold opening system 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.

7. A vulcanized rubber insulating sleeve trimming and mold opening system according to claim 1, characterized in that A rotating disk mounting hole is provided on the workbench (1), and the rotating disk (24) is movably mounted in the rotating disk mounting hole via a lifting platform (25); the lifting platform (25) is a manual lifting platform.

8. A trimming and mold opening system for a vulcanized rubber insulating sleeve according to claim 7, characterized in that Upper die fixing seat mounting grooves are respectively provided on both sides of the rotating disk mounting hole, and a pair of upper die fixing seats (27) are symmetrically and movably mounted in the upper die fixing seat mounting grooves; a lower die fixing seat (28) is symmetrically and movably mounted on the lifting platform (25), and a lower die fixing seat avoidance groove is provided on the upper die fixing seat (27), and the lower die fixing seat (28) is located in the lower die fixing seat avoidance groove.

9. A trimming and mold opening system for a vulcanized rubber insulating sleeve according to claim 8, characterized in that A transverse slide groove is provided in the installation groove of the upper die fixing seat, and a guide block cooperating with the transverse slide groove is provided on the upper die fixing seat (27); a pair of transverse guide rails (30) are provided on the lifting platform (25), and the lower die fixing seat (28) is installed on the slider of the transverse guide rail (30); and a rotating disk avoidance groove is provided on the lower die fixing seat (28).

10. A vulcanized rubber insulating sleeve trimming and mold opening system according to claim 1, characterized in that A pair of vertical guide rollers (33) are symmetrically arranged on the mold positioning seat (26).

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