CN221968785U - Flash-free leather cup demoulding device - Google Patents

Abstract

The utility model relates to a flash-free leather cup demoulding device, which relates to the technical field of flash-free leather cup production and comprises a middle die assembly and a lower die assembly, wherein the middle die assembly comprises a connecting side plate, the connecting side plate and a cavity are the same in size, the bottom of the connecting side plate is open, and the bottom of the connecting side plate is contacted with the lower die assembly. According to the utility model, the side edge surrounded by the connecting side plates is contacted with the side edge of the leather cup, so that the lower die assembly is contacted with the bottom of the leather cup, and meanwhile, the middle die assembly and the lower die assembly are connected through the buffer mechanism, so that the middle die assembly is pushed by the buffer mechanism when the leather cup is released, the middle die assembly and the lower die assembly are separated, at the moment, the side edge of the middle die assembly is contacted with the side edge of the leather cup, and when the leather cup moves upwards, only the bottom surface force of the leather cup is needed to be overcome, so that the born force is uniformly distributed on the bottom surface when a product is released, and the problem of deformation of the product when the product is released is solved.

Description

A demoulding device for leather cup without flash

Technical Field

The utility model relates to the technical field of flash-free leather cup production, in particular to a flash-free leather cup demoulding device.

Background Art

Rubber cup products are used in the master brake cylinder of automobiles, especially in the new electronic brakes used in future new energy sources. For the processing of rubber cups, the mold structure of the rubber products specifically involved usually adopts a structure with a plunger and a cup system. For example, in the patent document with application number 202020727207.X, a flashless cup mold structure is disclosed, and it is specifically disclosed that by removing the excess pressure-bearing surface at the joint of the cavity, the force area is small and the pressure is strong, thereby making the joint tighter and reducing the overflow of rubber.

In the above technical scheme, after the injection molding of the rubber cup, the finished product needs to be separated from the mold, so a demolding mechanism is used for demolding, that is, the air inlet hole on the plunger is opened, and the atmospheric pressure will push open the vent of the air pin and enter between the plunger and the flash, so that it will fall off after being subjected to the air pressure. As for the separation of the cup and the lower mold, the high-pressure spring of the mold is used to spring open the middle mold plate, and the product will stick to the middle mold plate and separate from the lower mold plate. During this process, the product contacts the lower mold plate, and in the prior art, the side of the product also contacts the side of the lower mold, so that the cavity of the lower mold assembly is used to realize the molding of the cup. When the product is directly separated from the lower mold under the action of the middle mold plate, the bottom surface of the product is separated from the lower mold assembly under the action of the elastic force, and the side of the product is separated from the lower mold assembly under the action of the elastic force. The force borne by the product cannot be evenly distributed on each separation surface, which will cause the product to be easily deformed under the current environment, resulting in the problem that the quality of the product is affected.

Utility Model Content

The technical problem solved by the utility model is: to solve the problem in the prior art that, since the bottom and the sides of the product are in contact with the lower mold assembly, it is necessary to overcome the force of the bottom and the sides of the product during demoulding, so that the force borne by the product cannot be evenly distributed on each separation surface, which will cause the product to be easily deformed.

The utility model can be implemented through the following technical scheme: a flashless leather cup demoulding device, including a middle mold assembly and a lower mold assembly, the middle mold assembly and the lower mold assembly are connected by a buffer mechanism, the middle mold assembly includes a connecting side plate, the connecting side plate and the cavity have the same size, and the bottom of the connecting side plate is open, and the bottom of the connecting side plate is in contact with the lower mold assembly.

The further technical improvement of the utility model is that a central column is arranged at the center of the lower mold assembly, an upper mold assembly cooperates with the lower mold assembly, an output end of the upper mold assembly is connected with a matching support side sleeve through a telescopic assembly, and the matching support side sleeve cooperates with the central column.

A further technical improvement of the utility model is that the buffer mechanism comprises a buffer groove, the buffer groove is arranged on the lower mold assembly, and a buffer plate for cooperating with the buffer groove is fixed to the side edge of the connecting side plate.

A further technical improvement of the utility model is that an arc-shaped spring sheet for buffering the buffer plate when it moves is fixedly installed inside the buffer groove.

A further technical improvement of the utility model is that a sliding support frame is installed at the bottom of the buffer groove through a return spring, the sliding support frame is slidably connected to the buffer groove, and a lifting roller for supporting the middle position of the arc-shaped spring sheet is rotatably provided on the sliding support frame.

Compared with the prior art, the utility model has the following beneficial effects:

1. In the present application, the side edges formed by connecting the side panels of the middle mold assembly are in contact with the side edges of the leather cup, so that the lower mold assembly is in contact with the bottom of the leather cup. At the same time, since the middle mold assembly and the lower mold assembly are connected by a buffer mechanism, the buffer mechanism is used to push the middle mold assembly during demolding to separate the middle mold assembly and the side edges of the leather cup are in contact. When the leather cup moves upward, it only needs to overcome the bottom force of the leather cup, thereby ensuring that the force borne by the product during demolding is more evenly distributed on the bottom surface, thereby solving the problem of product deformation during demolding.

2. The present application adopts a central column in the lower mold assembly and a matching supporting side sleeve is provided on the upper mold assembly through a telescopic assembly, so that the central column is covered by the matching supporting side sleeve. During demolding, the upper mold assembly drives the matching supporting side sleeve to move upward through the action of the telescopic assembly, thereby avoiding the problem of deformation of the leather cup caused by the tension generated when the central column and the side of the leather cup are separated. In addition, in the present application, through the action of the telescopic assembly, when the upper mold assembly is away from the lower mold assembly, the middle position of the leather cup is separated from the matching supporting side sleeve, which will drive the displacement of the side of the leather cup and the connecting side plate, so that the side of the leather cup and the connecting side plate can be separated from each other, which is convenient for demolding and blanking of the leather cup.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

FIG1 is a schematic diagram of the positions of the lower mold assembly and the middle mold assembly of the present invention;

FIG2 is a schematic diagram of the structure of the middle mold assembly of the present utility model;

FIG3 is a partial enlarged view of point A in FIG1 of the present utility model;

FIG. 4 is a schematic structural diagram of a buffer spring assembly of the present invention.

In the figure: 1. lower mold assembly; 2. buffer mechanism; 21. buffer spring assembly; 211. lifting roller; 212. sliding support frame; 213. return spring; 214. arc spring sheet; 22. buffer groove; 3. middle mold assembly; 31. buffer plate; 32. connecting side plate; 33. matching supporting side sleeve; 4. cavity; 5. base.

DETAILED DESCRIPTION

In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

Please refer to Figures 1-4, a flashless leather cup demoulding device includes a lower mold assembly 1 and a middle mold assembly 3, wherein the lower mold assembly 1 and the middle mold assembly 3 are detachably connected, and the middle mold assembly 3 and the lower mold assembly 1 are buffered by a buffer mechanism 2, wherein the lower mold assembly 1 is installed on a base 5, and a cavity 4 is formed in the middle of the lower mold assembly 1.

When in use, first move the middle mold assembly 3 toward the cavity 4, so that the middle mold assembly 3 moves into the cavity 4 of the lower mold assembly 1. At this time, the buffer mechanism 2 is subjected to strong pressure, so that the middle mold assembly 3 and the lower mold assembly 1 are fitted together, and then rubber is injected into the cavity 4, so that the rubber is molded by the action of the cavity 4, and the molded rubber is cooled at the same time. After it is cooled and formed, the downward pressure on the middle mold assembly 3 is released, and under the action of the buffer mechanism 2, the middle mold assembly 3 and the lower mold assembly 1 are separated, thereby separating the finished product from the lower mold assembly 1, thereby achieving the demolding effect on the finished product.

In order to avoid the side and bottom of the finished product sticking to the lower mold assembly 1 during demolding, which may cause uneven demolding force on the finished product and affect the quality of the finished product, the middle mold assembly 3 in the present application adopts the use of connecting side panels 32, that is, the connecting side panels 32 form a hollow structure, so that the sides of the finished product are formed under the action of the connecting side panels 32, and the bottom of the finished product contacts the lower mold assembly 1. At this time, when the connecting side panels 32 move longitudinally, they can drive the finished product to move away from the cavity 4. At this time, the only force that needs to be overcome is the force of separating the bottom of the finished product from the lower mold assembly 1, and the sides of the finished product are confined to the inside of the connecting side panels 32 to ensure the force stability when the finished product and the lower mold assembly 1 are separated.

A matching support side sleeve 33 is provided at the center position of the connecting side plate 32, wherein the matching support side sleeve 33 is connected to the upper mold assembly through a telescopic mechanism, and the matching support side sleeve 33 is sleeved with the center column of the lower mold assembly 1. When in use, the middle mold assembly 3 and the lower mold assembly 1 are first matched and clamped, and at this time, the matching support side sleeve 33 is sleeved on the center column of the lower mold assembly 1 by utilizing the function of the telescopic mechanism. During the demoulding process, the middle mold assembly 3 is moved upward by utilizing the function of the telescopic mechanism and the function of the buffer mechanism 2, so that the separation force that the finished product and the lower mold assembly 1 need to overcome is only the adhesion force between the finished product and the bottom of the lower mold assembly 1, and then the matching support side sleeve 33 is continued to move longitudinally, so that the matching support side sleeve 33 is separated from the connecting side plate 32, and at this time, the middle position of the finished product can be separated from the matching support side sleeve 33, and at the same time, the finished product can be driven to move slightly on the connecting side plate 32, and then only the side of the leather cup and the connecting side plate 32 need to be separated.

As a further embodiment of the present application, the telescopic mechanism in the present application includes but is not limited to a cylinder, a telescopic rod, a hydraulic cylinder, etc.

Furthermore, the buffer mechanism 2 includes a buffer groove 22, and the buffer groove 22 is opened at the contact position of the lower mold assembly 1 and the middle mold assembly 3, wherein a buffer plate 31 is fixed on the side of the connecting side plate 32, wherein the buffer plate 31 and the buffer groove 22 are used in combination to realize the contact limiting effect of the lower mold assembly 1 and the middle mold assembly 3, and a buffer spring assembly 21 for buffering the buffer plate 31 is arranged inside the buffer groove 22, and during demolding, under the action of the buffer spring assembly 21, the middle mold assembly 3 and the lower mold assembly 1 are separated, thereby realizing the demolding effect on the leather cup.

In the present application, the buffer spring assembly 21 includes an arc-shaped spring sheet 214, through the action of the arc-shaped spring sheet 214, the lower mold assembly 1 and the middle mold assembly 3 are slowly separated to avoid the quality problem of the leather cup caused by direct bouncing.

In order to avoid deformation caused by excessive force on the arc-shaped spring sheet 214, a lifting roller 211 is arranged at the bottom of the arc-shaped spring sheet 214. Specifically, a return spring 213 is fixed inside the buffer groove 22, and a sliding support frame 212 is also longitudinally slidably arranged inside the buffer groove 22, wherein a lifting roller 211 is rotatably arranged on the sliding support frame 212, and the sliding support frame 212 is located on the top of the return spring 213.

When the arc-shaped spring piece 214 is deformed, the lifting roller 211 moves downward, and the sliding support frame 212 moves downward. At this time, the return spring 213 generates pressure. When the lower mold assembly 1 and the middle mold assembly 3 are separated, the elastic force generated by the return spring 213 can make the lifting roller 211 closely contact the arc-shaped spring piece 214, so that the middle position of the arc-shaped spring piece 214 is not only affected by its own rebound force, but also by the pressure of the return spring 213, so that the middle position of the arc-shaped spring piece 214 is always at the highest end, thereby ensuring the shape of the arc-shaped spring piece 214.

When the utility model is used, the middle mold assembly 3 is first moved toward the mold cavity 4, so that the middle mold assembly 3 moves into the mold cavity 4 of the lower mold assembly 1. At this time, the buffer mechanism 2 is subjected to strong pressure, so that the middle mold assembly 3 and the lower mold assembly 1 are fitted together. At this time, the supporting side sleeve 33 is sleeved on the central column of the lower mold assembly 1 by utilizing the function of the telescopic mechanism; then, rubber is injected into the mold cavity 4, so that the rubber is molded by the function of the mold cavity 4, and the molded rubber is cooled at the same time. After it is cooled and molded, the downward pressure on the middle mold assembly 3 is released, and under the function of the buffer mechanism 2, the middle mold assembly 3 and the lower mold assembly 1 are separated, so that the finished product is separated from the lower mold assembly 1, and the demoulding function of the finished product is realized;

That is, during the demolding process, the middle mold assembly 3 is moved upward by the action of the telescopic mechanism and the buffer mechanism 2, so that the separation force that the finished product and the lower mold assembly 1 need to overcome is only the adhesion force between the finished product and the bottom of the lower mold assembly 1, and then the matching support side sleeve 33 is used to continue to move longitudinally, so that the matching support side sleeve 33 is separated from the connecting side plate 32. At this time, the middle position of the finished product can be separated from the matching support side sleeve 33, and at the same time, the finished product can be driven to move slightly on the middle connecting side plate 32, and then it can be achieved by only separating the side edge of the leather cup from the connecting side plate 32.

The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims (5)

1. The utility model provides a no overlap leather cup shedder, includes well mould subassembly (3) and lower mould subassembly (1), well mould subassembly (3) are connected its characterized in that through buffer gear (2) with lower mould subassembly (1): the middle die assembly (3) comprises a connecting side plate (32), the connecting side plate (32) and the die cavity (4) are the same in size, the bottom of the connecting side plate (32) is in an open shape, and the bottom of the connecting side plate (32) is in contact with the lower die assembly (1).

2. The flash-free cup stripper device according to claim 1, wherein a center column is arranged at the center of the lower die assembly (1), an upper die assembly is cooperatively used on the lower die assembly (1), an output end of the upper die assembly is connected with a matched supporting side sleeve (33) through a telescopic assembly, and the matched supporting side sleeve (33) is matched with the center column.

3. The flash-free leather cup demolding device according to claim 1, wherein the buffering mechanism (2) comprises a buffering groove (22), the buffering groove (22) is formed in the lower mold assembly (1), and a buffering plate (31) matched with the buffering groove (22) is fixed on the side edge of the connecting side plate (32).

4. A flash-free cup stripper according to claim 3, wherein the buffer slot (22) is internally and fixedly provided with an arcuate spring piece (214) for buffering the buffer plate (31) when moving.

5. The flash-free cup stripper device according to claim 4, wherein a sliding support (212) is mounted at the bottom of the buffer groove (22) through a return spring (213), the sliding support (212) is slidably connected with the buffer groove (22), and a jack-up roller (211) for supporting the middle position of the arc-shaped spring piece (214) is rotatably arranged on the sliding support (212).