Elevator door buffer rubber processing mold

Abstract

The utility model relates to the technical field of rubber molds, and particularly discloses an elevator door buffer rubber processing mold which comprises an upper mold, a lower mold assembly is installed at the bottom of the upper mold, a mold closing positioning mechanism is arranged between the lower mold assembly and the upper mold, mold core assemblies are arranged in the lower mold assembly and the upper mold, and the mold core assemblies are arranged in the upper mold and the lower mold. An auxiliary demolding assembly is arranged in the mold core assembly; the lower die assembly comprises a lower die body matched with the upper die, cold water pipes are fixed to the interiors of the upper die and the lower die body, hollow plates are fixed to the left ends and the right ends of the cold water pipes, connectors are fixed to the middles of the sides, away from the cold water pipes, of the hollow plates, and the two connectors penetrate through the left sides and the right sides of the upper die and the lower die body correspondingly. According to the utility model, cold water can be filled into the lower die main body and the upper die through the cold water pipe, so that the cooling effect on the die core assembly is achieved, the cooling of a workpiece is assisted, the forming time of the workpiece can be shortened, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber mould technical field especially is involved in a kind of elevator door buffer rubber processing mould. BACKGROUND

[0002] Elevator door buffer rubber includes elevator hall door anti-collision rubber peg, elevator car door buffer block etc., mainly with polyurethane and rubber, with elastic buffer and sealing noise reduction function.Elevator door buffer rubber can reduce collision impact when elevator car door, protect door body structure.Elevator door buffer rubber in forming process, can adopt mold injection molding mode, wherein suitable processing mould is particularly important.

[0003] At present, the cavity of the upper die and the lower die of the elevator door buffer rubber processing mould is difficult to align completely when the mould is closed, which can easily cause the misalignment of the outer wall of the formed buffer rubber, affecting the product quality.

[0004] The existing public technical solution, the announcement number CN211640795U discloses a kind of elevator door buffer rubber processing mould, including upper die holder and lower die holder, the embedding groove of upper die holder and lower die holder is respectively clamped with upper die and lower die, and positioning mechanism is installed between upper die and lower die and embedding groove, is positioned and fixed by positioning mechanism, so that upper cavity and lower cavity are completely opposite, then upper cavity and lower cavity can be completely opposite and closed when the mould is closed, so that the core is clamped in the hole, so that annular buffer rubber with bolt mounting mounting hole is formed by injection molding.

[0005] The above technical solution relies on the cooling and forming of the raw material itself in actual implementation, cannot assist the cooling of workpiece, and is low in efficiency when used. SUMMARY

[0006] The utility model aims at providing a kind of elevator door buffer rubber processing mould, can be filled into cold water by the cold water pipe of being set, the inside of lower die main body and upper die can be cooled, so as to the cooling effect of die component is played, assist cooling of workpiece, can shorten workpiece forming time, improve work efficiency, to solve the problem proposed in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of elevator door buffer rubber processing mould, including upper die, the bottom of the upper die is installed with lower die component, and lower die component is positioned with the positioning mechanism of moulding between upper die, the inside of lower die component and upper die is all provided with die component, and the inside of die component is provided with auxiliary demoulding component;

[0008] The lower die assembly comprises a lower die body matched with the upper die, the inner part of the upper die and the lower die body is fixed with a cold water pipe, and the left and right ends of the cold water pipe are fixed with hollow plates, the middle part of the side of the hollow plate away from the cold water pipe is fixed with a connecting head, and the two groups of connecting heads are respectively penetrated through the left and right sides of the upper die and the lower die body.

[0009] Preferably, the inner part of the upper die and the lower die body is further provided with an inner cavity, the cold water pipe is located at the front and back sides of the inner cavity, and the inner wall of the inner cavity is provided with a movable cavity.

[0010] Preferably, the die closing positioning mechanism comprises support blocks fixed on the left and right sides of the upper die and the lower die body, and a fastening screw is penetrated through the inner part of the support block, and the side of the surface of the fastening screw close to the support block is threadedly connected with a fastening sleeve.

[0011] Preferably, the die closing positioning mechanism further comprises positioning rods fixed on the top four corners of the lower die body, and positioning holes are provided at the inner four corners of the upper die and matched with the positioning rods.

[0012] Preferably, the die core assembly comprises a die core body installed in the inner part of the inner cavity, the connecting part of the die core body with the upper die and the lower die body is provided with a positioning clamping block, and the connecting part of the positioning clamping block with the inner cavity is provided with a positioning clamping groove.

[0013] Preferably, the four corners of the die core body are penetrated through with fixed screws, the fixed screws are threadedly connected with the upper die and the lower die body, and the inner part of the die core body is provided with a plurality of die cavities.

[0014] Preferably, the auxiliary die releasing assembly comprises an air injection plate fixed on the bottom of the die cavity, the air injection plate is in communication with the die cavity, the bottom of the air injection plate is fixedly connected with a support pipe, and the bottom of the support pipe is fixedly connected with a connecting pipe penetrated through the inner part of the die core body.

[0015] Preferably, the auxiliary die releasing assembly further comprises an air injection pipe penetrated through the inner part of the upper die and the lower die body, the connecting part of the air injection pipe with the upper die and the lower die body is provided with a moving groove, the inner part of the moving groove is fixedly connected with a return spring, the end of the return spring is provided with a connecting frame fixedly connected with the surface of the air injection pipe, the connecting frame is movably connected with the moving groove, the air injection pipe is penetrated through the inner part of the return spring, and the end of the air injection pipe close to the connecting pipe is fixedly connected with a conical nozzle.

[0016] Compared with the prior art, the die has the following beneficial effects:

[0017] 1. The cold water pipe is arranged, the inner part of the lower die body and the upper die can be filled with cold water, so that the die core assembly is cooled, the workpiece is cooled, the workpiece forming time is shortened, and the work efficiency is improved.

[0018] 2. Through the mold closing positioning mechanism, the positioning rod is inserted into the inside of the positioning hole, the upper die and the lower die body are guided, then the fastening screw rod is inserted into the support block, the fastening sleeve is rotated, the fastening screw rod is tightened through the fastening sleeve, and the upper die and the lower die body are closed. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0020] Figure 1 It is the overall structure view of the present application.

[0021] Figure 2 It is the structure schematic view of the lower die assembly of the present application.

[0022] Figure 3 It is the half cut structure schematic view of the lower die body of the present application.

[0023] Figure 4 It is the half cut structure schematic view of the die core body of the present application.

[0024] Figure 5 It is the structure schematic view of the present application Figure 3 It is the enlarged view of A.

[0025] Figure 6 It is the structure schematic view of the cold water pipe of the present application.

[0026] Explanation of reference signs:

[0027] 1, upper die; 2, lower die assembly; 201, lower die body; 202, connecting head; 203, cold water pipe; 204, hollow plate; 205, inner cavity; 206, movable cavity; 3, mold closing positioning mechanism; 301, fastening screw rod; 302, support block; 303, fastening sleeve; 304, positioning rod; 305, positioning hole; 4, die core assembly; 401, die core body; 402, die cavity; 403, positioning clamping block; 404, positioning clamping groove; 405, fixing screw; 5, auxiliary demolding assembly; 501, gas injection pipe; 502, connecting pipe; 503, support pipe; 504, gas injection plate; 505, conical nozzle; 506, connecting frame; 507, return spring; 508, moving groove. DETAILED DESCRIPTION

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides a technical solution:

[0030] Please see Figures 1 to 6 An elevator door buffer rubber processing mold includes an upper mold 1, a lower mold assembly 2 installed at the bottom of the upper mold 1, a mold closing and positioning mechanism 3 provided between the lower mold assembly 2 and the upper mold 1, and a mold core assembly 4 provided inside both the lower mold assembly 2 and the upper mold 1, and an auxiliary demolding assembly 5 provided inside the mold core assembly 4.

[0031] The lower mold assembly 2 includes a lower mold body 201 that is compatible with the upper mold 1. Both the upper mold 1 and the lower mold body 201 have a cold water pipe 203 fixed inside. Both ends of the cold water pipe 203 have a hollow plate 204 fixed to them. A connector 202 is fixed in the middle of the side of the hollow plate 204 away from the cold water pipe 203. The two sets of connectors 202 pass through the left and right sides of the upper mold 1 and the lower mold body 201, respectively.

[0032] The upper mold 1 and the lower mold body 201 are also provided with an inner cavity 205. The cold water pipe 203 is located on the front and rear sides of the inner cavity 205. The inner wall of the inner cavity 205 is provided with a movable cavity 206.

[0033] By adopting the above technical solution, after the mold core assembly 4 is placed inside the lower mold body 201 and the upper mold 1, it can be cooled down by the cold water pipe 203 set inside the lower mold body 201 and the upper mold 1. The cold water enters the hollow plate 204 through one of the connectors 202 and enters the cold water pipe 203. The heat inside the mold core assembly 4 can be transferred to the interior of the lower mold body 201 and the upper mold 1. Since the interior of the lower mold body 201 and the upper mold 1 can be filled with cold water, the mold core assembly 4 can be cooled down, which helps to cool down the workpiece, shortens the workpiece forming time, and improves work efficiency.

[0034] Specifically, such as Figure 1 and Figure 2As shown, the mold closing and positioning mechanism 3 includes support blocks 302 fixed on the left and right sides of the upper mold 1 and the lower mold body 201, and fastening screws 301 are inserted inside the support blocks 302. A fastening sleeve 303 is threadedly connected to the side of the fastening screw 301 near the support block 302. The mold closing and positioning mechanism 3 also includes positioning rods 304 fixed at the four corners of the top of the lower mold body 201, and positioning holes 305 opened at the four corners of the upper mold 1 to match the positioning rods 304.

[0035] The mold core assembly 4 includes a mold core body 401 installed inside the inner cavity 205. A positioning block 403 is provided at the connection between the mold core body 401 and the upper mold 1 and the lower mold body 201, and a positioning slot 404 is provided at the connection between the positioning block 403 and the inner cavity 205. Fixing screws 405 are provided at the four corners of the mold core body 401. The fixing screws 405 are threadedly connected to the upper mold 1 and the lower mold body 201. Multiple mold cavities 402 are provided inside the mold core body 401.

[0036] By adopting the above technical solution, the mold core body 401 can be placed inside the positioning slot 404 through the positioning block 403, and the fixing screw 405 is rotated to connect the mold core body 401 with the upper mold 1 and the lower mold body 201. Then the upper mold 1 and the lower mold body 201 are closed together. The positioning rod 304 is inserted into the positioning hole 305 to guide the upper mold 1 and the lower mold body 201. Then the fastening screw 301 is inserted into the support block 302, and the fastening sleeve 303 is rotated to tighten the fastening screw 301 through the fastening sleeve 303, thereby closing the upper mold 1 and the lower mold body 201.

[0037] Specifically, such as Figures 3 to 5 As shown, the auxiliary demolding assembly 5 includes an air injection plate 504 fixed to the bottom of the mold cavity 402, and the air injection plate 504 is in communication with the mold cavity 402. A support tube 503 is fixedly connected to the bottom of the air injection plate 504, and a connecting tube 502 penetrating inside the mold core body 401 is fixedly connected to the bottom of the support tube 503. The auxiliary demolding assembly 5 also includes an air injection pipe 501 penetrating inside the upper mold 1 and the lower mold body 201. A moving groove 508 is provided at the connection between the air injection pipe 501 and the upper mold 1 and the lower mold body 201, and a return spring 507 is fixedly connected inside the moving groove 508. A connecting frame 506 is fixedly connected to the surface of the air injection pipe 501 at the end of the return spring 507, and the connecting frame 506 is movably connected to the moving groove 508. The air injection pipe 501 penetrates inside the return spring 507, and a conical nozzle 505 is fixedly connected to one end of the air injection pipe 501 near the connecting tube 502.

[0038] By adopting the above technical solution, when the mold is closed, the end of the connecting pipe 502 on the mold core body 401 can be located inside the movable cavity 206. When demolding is required, air is injected into the cavity through the air injection pipe 501. When injecting air, the air injection pipe 501 is pushed inward, which can drive the connecting frame 506 to move inward. The return spring 507 is stretched, and then the air injection pipe 501 drives the conical nozzle 505 to be inserted into the connecting pipe 502, so that the connecting pipe 502 and the air injection pipe 501 are connected to each other, forming an air passage. At this time, the gas can enter the connecting pipe 502 from the air injection pipe 501, and then enter the support pipe 503 from the connecting pipe 502. Subsequently, it is transported to the bottom of the mold cavity 402 through the air injection plate 504 on the support pipe 503, which sends air into the mold cavity 402, which can create a gap between the workpiece and the mold cavity 402, thus playing an auxiliary demolding role.

[0039] Working principle: During mold closing, the end of the connecting pipe 502 on the mold core body 401 can be located inside the movable cavity 206. The mold core body 401 can be placed inside the positioning slot 404 through the positioning block 403. By rotating the fixing screw 405, the mold core body 401 is connected to the upper mold 1 and the lower mold body 201. Then, the upper mold 1 and the lower mold body 201 close together. The positioning rod 304 is inserted into the positioning hole 305 to guide the upper mold 1 and the lower mold body 201. Then, the fastening screw 301 is inserted into the support block 302, and the fastening sleeve 303 is rotated to tighten the fastening screw 301, thereby closing the upper mold 1 and the lower mold body 201. Cold water enters the hollow plate 204 through one of the connectors 202 and enters the cold water pipe 203. The heat in the mold core assembly 4 can be dissipated by the mold core assembly. The workpiece 4 is transferred to the interior of the lower mold body 201 and the upper mold 1. Since cold water can be poured into the interior of the lower mold body 201 and the upper mold 1, it has a cooling effect on the mold core assembly 4. During demolding, air is injected into the interior through the air injection pipe 501. When injecting air, the air injection pipe 501 is pushed inward, which can drive the connecting frame 506 to move inward. The return spring 507 is stretched, and then the air injection pipe 501 drives the conical nozzle 505 to be inserted into the interior of the connecting pipe 502, so that the connecting pipe 502 and the air injection pipe 501 are connected to each other, forming an air passage. At this time, the gas can enter the connecting pipe 502 from the air injection pipe 501, and then enter the support pipe 503 from the connecting pipe 502. Then, it is transported to the bottom of the mold cavity 402 through the air injection plate 504 on the support pipe 503, and air is sent into the mold cavity 402, so that a gap is created between the workpiece and the mold cavity 402, which plays an auxiliary role in demolding.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A processing mold for elevator door buffer rubber, comprising an upper mold (1), characterized in that: The bottom of the upper mold (1) is equipped with a lower mold assembly (2), and a mold closing and positioning mechanism (3) is provided between the lower mold assembly (2) and the upper mold (1). The lower mold assembly (2) and the upper mold (1) are both equipped with mold core assemblies (4), and the mold core assembly (4) is equipped with an auxiliary demolding assembly (5). The lower mold assembly (2) includes a lower mold body (201) that is compatible with the upper mold (1). Both the upper mold (1) and the lower mold body (201) have a cold water pipe (203) fixed inside. Both ends of the cold water pipe (203) have a hollow plate (204) fixed on them. A connector (202) is fixed in the middle of the side of the hollow plate (204) away from the cold water pipe (203). The two connectors (202) pass through the left and right sides of the upper mold (1) and the lower mold body (201) respectively.

2. The elevator door buffer rubber processing mold according to claim 1, characterized in that: The upper mold (1) and the lower mold body (201) are further provided with an inner cavity (205), the cold water pipe (203) is located on the front and rear sides of the inner cavity (205), and the inner wall of the inner cavity (205) is provided with a movable cavity (206).

3. The elevator door buffer rubber processing mold according to claim 2, characterized in that: The mold closing and positioning mechanism (3) includes support blocks (302) fixed on the left and right sides of the upper mold (1) and the lower mold body (201), and fastening screws (301) are inserted inside the support blocks (302). A fastening sleeve (303) is threaded on the side of the fastening screw (301) near the support block (302).

4. The elevator door buffer rubber processing mold according to claim 3, characterized in that: The mold closing and positioning mechanism (3) also includes positioning rods (304) fixed at the top four corners of the lower mold body (201) and positioning holes (305) opened at the four corners inside the upper mold (1) to match the positioning rods (304).

5. The elevator door buffer rubber processing mold according to claim 4, characterized in that: The mold core assembly (4) includes a mold core body (401) installed inside the inner cavity (205). A positioning block (403) is provided at the connection between the mold core body (401) and the upper mold (1) and the lower mold body (201), and a positioning slot (404) is provided at the connection between the positioning block (403) and the inner cavity (205).

6. The elevator door buffer rubber processing mold according to claim 5, characterized in that: Fixing screws (405) are provided at the four corners of the mold core body (401). The fixing screws (405) are threadedly connected to the upper mold (1) and the lower mold body (201). Multiple mold cavities (402) are opened inside the mold core body (401).

7. The elevator door buffer rubber processing mold according to claim 6, characterized in that: The auxiliary demolding assembly (5) includes an air injection plate (504) fixed to the bottom of the mold cavity (402), and the air injection plate (504) is connected to the mold cavity (402). The bottom of the air injection plate (504) is fixedly connected to a support tube (503), and the bottom of the support tube (503) is fixedly connected to a connecting tube (502) that penetrates the interior of the mold core body (401).

8. The elevator door buffer rubber processing mold according to claim 7, characterized in that: The auxiliary demolding assembly (5) also includes an air injection pipe (501) that runs through the interior of the upper mold (1) and the lower mold body (201). A moving groove (508) is provided at the connection between the air injection pipe (501) and the upper mold (1) and the lower mold body (201). A return spring (507) is fixedly connected inside the moving groove (508). A connecting frame (506) is provided at the end of the return spring (507) and is fixedly connected to the surface of the air injection pipe (501). The connecting frame (506) is movably connected to the moving groove (508). The air injection pipe (501) runs through the interior of the return spring (507). A conical nozzle (505) is fixedly connected to one end of the air injection pipe (501) near the connecting pipe (502).

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