Plastic processing mold

Abstract

The utility model relates to the technical field of plastic processing molds, solves the technical problem that a worker cannot conveniently take down molded plastic from a silica gel concave mold, and particularly relates to an air pressure mechanism which comprises a power key arranged on the surface of a case main body, and an air pump electrically connected with the power key is arranged in the case main body. The output end of the inflator pump is provided with an air delivery pipe connected with the front inner groove, and a pressure reducing piece used for reducing the air pressure of the front inner groove is arranged in the front inner groove. The inflation pump is controlled to work by pressing the power key, a large amount of gas is rapidly inflated between the front inner groove and the silica gel female die, so that the silica gel female die deforms and pushes the molding plastic to move, the larger the deformation degree of the silica gel female die is, the larger the separation degree between the plastic and the silica gel female die is, and after the plastic is completely separated, the molding process is finished. And under the action of the pressure reducing piece, the silica gel female die is restored to the initial state, and workers can continue to operate the machining die to conduct plastic machining and forming work.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing molds, in particular to a plastic processing mold. Background Art

[0002] The prior art discloses a plastic processing mold with a publication number of CN219600128U. The processing mold is achieved by respectively clamping a silicone die and a silicone punch in a front inner groove and a rear inner groove, and fixing the silicone die and the silicone punch in the front inner groove and the rear inner groove respectively through die soft pins and punch soft pins. The plastic melt is injected into the silicone die and the silicone punch through an injection tube, and the plastic melt is turned into molded plastic after cooling, thereby achieving rapid support for the silicone die and the silicone punch, which is beneficial to rapid molding of the plastic melt and reduces the adjustment time of the silicone die and the silicone punch.

[0003] However, when using the processing mold, the plastic melt is quickly formed between the silicone male mold and the silicone female mold, and when the silicone male mold is actively separated from the silicone female mold, the molded plastic will be tightly attached to the silicone female mold. In addition, due to the shape of the silicone female mold and the silicone female mold being fixed in the front inner groove, it is not convenient for workers to separate the molded plastic from the silicone female mold, which increases the difficulty for workers to remove the molded plastic and is not conducive to workers using the processing mold for the next plastic molding work. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a plastic processing mold, which solves the technical problem that it is inconvenient for workers to remove the molded plastic from the silicone die, thereby achieving the purpose of making it easier for workers to use the processing mold for plastic molding.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A plastic processing mold, comprising a chassis body and a silicone die and a silicone convex mold for plastic melt injection molding, wherein the chassis body is provided with a front inner groove for clamping with the silicone die, and a pneumatic mechanism for squeezing the silicone die is provided between the front inner groove and the chassis body;

[0007] The air pressure mechanism includes a power button arranged on the surface of the chassis body, and an air pump electrically connected to the power button is arranged in the chassis body, an air supply pipe connected to the front inner tank is arranged at the output end of the air pump, and a pressure reducing member for reducing the air pressure in the front inner tank is arranged in the front inner tank.

[0008] Furthermore, the pressure reducing member includes an exhaust hole arranged in the front inner groove, a circular cavity is arranged in the exhaust hole, and a support rod located at the central axis of the circular cavity is arranged in the exhaust hole, a spring is arranged on the surface of the support rod, and a semicircular block fixedly connected to the spring is slidably connected to the surface of the support rod.

[0009] Furthermore, the exhaust hole is L-shaped, and one end of the exhaust hole passes through the chassis body to the outside.

[0010] Furthermore, a sealing gasket in contact with the semicircular block is provided between the circular cavity and the exhaust hole.

[0011] Furthermore, an air pump electrically connected to the power button is provided in the chassis, and an air pump output end is provided with an air pipe connected to the air supply pipe.

[0012] Furthermore, the power button is a multi-level control unit, and the power button controls the operation of the vacuum pump or the inflation pump in sequence.

[0013] By means of the above technical solution, the utility model provides a plastic processing mold, which has at least the following beneficial effects:

[0014] 1. Due to the setting of the air pressure mechanism, the utility model controls the operation of the air pump by pressing the power button, and quickly fills a large amount of gas between the front inner groove and the silicone die, so that the silicone die is deformed, and the molded plastic is pushed to move. The greater the deformation of the silicone die, the greater the separation between the plastic and the silicone die. When the plastic is completely separated, the silicone die is restored to its initial state under the action of the decompression member, which is beneficial for workers to continue to operate the processing mold to perform plastic processing and molding work.

[0015] 2. Due to the setting of the vacuum pump, after the plastic and the silicone die are separated, the power button is controlled again to turn off the air pump and start the vacuum pump to discharge the gas between the front inner groove and the silicone die into the external environment, which is conducive to making the air pressure between the front inner groove and the silicone die lower than the external air pressure, so that the silicone die fits tightly with the front inner groove under the action of the external air pressure, which is conducive to the silicone die returning to its initial state and reducing the time period for workers to operate the processing mold to form plastic parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0017] In the attached picture:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the silicone concave mold and silicone convex mold of the utility model;

[0020] Figure 3 It is a schematic diagram of the side section structure of the pneumatic mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the side section structure of the pressure relief member of the utility model;

[0022] Figure 5 This is a structural schematic diagram of the second embodiment of the utility model.

[0023] In the figure: 1. chassis body; 2. silicone die; 3. silicone convex mold; 4. front inner groove; 5. air pressure mechanism; 51. power button; 52. air pump; 53. air pipe; 54. pressure relief member; 541. exhaust hole; 542. circular cavity; 543. support rod; 544. spring; 545. semicircular block; 546. sealing gasket; 6. vacuum pump; 7. vacuum pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] When using the processing mold, workers will clamp the silicone die and the front inner groove together, and insert a plurality of die soft nails arranged on one side surface of the silicone die into the front sockets accordingly, so that the silicone die is fixed on the fixed module, and similarly, a plurality of convex soft nails arranged on one side surface of the silicone convex mold are inserted into the rear sockets accordingly, so that the silicone convex mold is fixed on the movable module, thereby completing the fixation of the two molds, thereby preventing the silicone die and the silicone convex mold from being affected by external forces during the movement, and artificially controlling the movable module so that the movable module drives the silicone convex mold to move toward the silicone die and achieve contact and docking, while the silicone convex mold and the silicone die are restricted by the movable module and the fixed module respectively. , it will maintain a stable state during the entire process of plastic melt injection molding, thereby realizing rapid support for the silicone die and silicone convex mold, which is conducive to the rapid molding of plastic melt and reduces the adjustment time of the silicone die and silicone convex mold. However, since the plastic melt is quickly molded between the silicone convex mold and the silicone die, after the plastic is molded, the worker will control the movable module to separate the silicone convex mold from the silicone die. At this time, the plastic will fit tightly with the silicone die, and because the silicone die is fixed in the front inner groove under the action of multiple die soft pins, it is not convenient for the worker to remove the silicone die and the plastic, thereby increasing the difficulty for the worker to remove the molded plastic and affecting the worker's use of the processing mold to make plastic again. Based on this, the following solution is provided.

[0026] Example 1

[0027] The processing mold can keep the silicone die 2 and the silicone convex mold 3 in the process of plastic melt injection molding, provide support and maintain stability, so that it is convenient for workers to use the processing mold for plastic molding. After plastic molding, since the plastic melt is in a liquid state, it is tightly fitted between the silicone die 2 and the silicone convex mold 3. At the same time, after cooling into a solid state, there is almost no gap between the plastic and the silicone die 2, so that the plastic is tightly attached to the surface of the silicone die 2 under the action of atmospheric pressure. Moreover, since the silicone die 2 is concave in shape and is fixed in the front groove, it is difficult for workers to easily separate the plastic from the silicone die 2, which increases the difficulty for workers to use the processing mold, and is not conducive to workers using the processing mold to continuously process plastic. The present embodiment provides a plastic processing mold, such as Figure 1-Figure 4 As shown, it includes a chassis body 1 and a silicone die 2 and a silicone convex mold 3 for injecting plastic melt into the mold. A front inner groove 4 for engaging with the silicone die 2 is provided in the chassis body 1. A pneumatic mechanism 5 for squeezing the silicone die 2 is provided between the front inner groove 4 and the chassis body 1. After the plastic melt is cooled and formed between the silicone die 2 and the silicone convex mold 3, the worker controls the movable module to actively separate the silicone convex mold 3 from the silicone die 2, and at this time controls the pneumatic mechanism 5 to work, so that a large amount of gas enters between the front inner groove 4 and the silicone die 2. Since the material of the silicone die 2 has elasticity and memory, the gas pushes the silicone die 2 to move and deform toward the front inner groove 4, thereby pushing the molded plastic to move. When relative movement occurs between the plastic and the silicone die 2, the outside air enters between the silicone die 2 and the plastic, thereby separating the plastic from the silicone die 2, which is conducive to the worker to remove the plastic in time and carry out the next plastic molding work.

[0028] The air pressure mechanism 5 includes a power button 51 arranged on the surface of the chassis body 1. When the worker manually controls the movable module to drive the silicone male mold 3 to separate, the power button 51 is pressed to quickly start the air pump 52. The chassis body 1 is provided with an air pump 52 electrically connected to the power button 51, which can inhale external air and output it to the air pipe 53 after pressurization. The output end of the air pump 52 is provided with an air pipe 53 connected to the front inner tank 4. The air pipe 53 itself is made of a non-expandable material and can deliver the extruded gas to the front inner tank 4. The front inner tank 4 is provided with a pressure reducing member 54 for reducing the air pressure of the front inner tank 4. A large amount of gas entering between the front inner tank 4 and the silicone female mold 2 can be discharged, so that a large amount of gas will not directly squeeze the silicone female mold 2 to the maximum extent of deformation, so that when the silicone female mold 2 is deformed to a certain extent, it maintains this state and releases the gas in the plastic. After separation from the silicone die 2, the vacuum pump 6 stops working, and the gas between the silicone die 2 and the front groove slowly loses, so that the silicone die 2 returns to its original state under the action of its own properties. After the plastic melt is formed in the silicone die 2 and the silicone convex mold 3, the silicone convex mold 3 is controlled to separate from the silicone die 2. At this time, the power button 51 is continued to be pressed to make the air pump 52 work, absorb and squeeze the external gas, and transport it to the front inner groove 4 and the silicone die 2 through the air pipe 53. Under the action of a large amount of gas squeezing in, the silicone die 2 is deformed and the plastic is pushed to move to the outside of the front inner groove 4. When the plastic and the silicone die 2 move relative to each other, the outside air enters, and in the process of the silicone die 2 being deformed, the plastic and the silicone die 2 are gradually separated, which is conducive to the workers to easily remove the molded plastic when operating the processing mold.

[0029] Since a large amount of gas quickly enters between the plastic and the silicone die 2, the silicone die 2 may be greatly deformed, resulting in a large range of movement of the plastic and causing damage. Therefore, a pressure reducing member 54 needs to be provided so that when the air pump 52 continues to inflate between the plastic and the silicone die 2, the pressure reducing member 54 slowly discharges the gas. The pressure reducing member 54 includes an exhaust hole 541 provided in the front inner groove 4, a circular cavity 542 is provided in the exhaust hole 541, and a support rod 543 located on the central axis of the circular cavity 542 is provided in the exhaust hole 541. A spring 544 is provided on the surface of the support rod 543, and a semicircular block 545 fixedly connected to the spring 544 is slidably connected to the surface of the support rod 543. Since the exhaust hole 541 is L-shaped and connects the front inner groove 4 with the external environment , so that the exhausted gas can pass into the external environment, and because the semicircular block 545 squeezes the sealing gasket 546, the semicircular block 545 maintains a sealed space between the front inner groove 4 and the silicone die 2, and more gas enters between the front inner groove 4 and the silicone die 2, resulting in the air pressure inside being greater than the external air pressure, so that the air pressure pushes the semicircular block 545 to move on the surface of the support rod 543 and squeezes the spring 544, so that the semicircular block 545 is separated from the sealing gasket 546, and the gas between the plastic and the silicone die 2 enters the external environment through the exhaust hole 541, and it is beneficial to make the gas between the silicone die 2 and the front inner groove 4 disappear after the air pump 52 stops working, so that the silicone die 2 returns to its initial state under the action of its own properties.

[0030] Example 2

[0031] Since the air pump 52 can quickly absorb external air and deliver it to the space between the silicone die 2 and the front inner groove 4 after pressurization, and the gas between the silicone die 2 and the front inner groove 4 is quickly lost under the action of the pressure reducing member 54, the worker needs to wait for the silicone die 2 to recover to the initial state, thereby increasing the cycle of the worker operating the processing mold to process and form a plastic component, and may cause the silicone die 2 and the front inner groove 4 to be not tightly fitted, affecting the recovery performance of the silicone die 2. Based on Example 1, Figure 5 As shown, an air pump 6 electrically connected to a power button 51 is provided in the chassis, and an air pump 7 connected to an air supply pipe 53 is provided at an output end of the air pump 6. When a worker operates the processing mold to perform plastic molding, and presses the power button 51 to fill air between the silicone die 2 and the front inner groove 4, so that the silicone die 2 is separated from the plastic, the power button 51 is used again to stop the air pump 52, and start the air pump 6, so that the air pump 6 extracts the gas between the silicone die 2 and the front inner groove 4, which is beneficial to shortening the cycle of the worker operating the processing mold to process and mold plastic, and is beneficial to reducing the air pressure between the silicone die 2 and the front inner groove 4, so that the external air pressure is greater than the air pressure inside, and under the extrusion of the external air pressure, the silicone die 2 and the front inner groove 4 are tightly fitted.

[0032] The power button 51 is a multi-level control unit, and the power button 51 controls the operation of the vacuum pump 6 or the air pump 52 in turn. Since the power button 51 can control the air pump 52 and the vacuum pump 6 to work respectively, workers can use the air pump 52 and the vacuum pump 6 in time when operating the processing mold to process the plastic, and the two work independently in turn to speed up the normal molding progress of the processing mold to process the plastic.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic processing mold, comprising a chassis body (1) and a silicone die (2) and a silicone convex mold (3) for plastic melt injection molding, wherein the chassis body (1) is provided with a front inner groove (4) for engaging with the silicone die (2), and characterized in that: An air pressure mechanism (5) for extruding the silicone die (2) is provided between the front inner groove (4) and the chassis body (1); The air pressure mechanism (5) comprises a power button (51) arranged on the surface of the chassis body (1), and an air pump (52) electrically connected to the power button (51) is arranged in the chassis body (1), an air supply pipe (53) connected to the front inner tank (4) is arranged at the output end of the air pump (52), and a pressure reducing member (54) for reducing the air pressure in the front inner tank (4) is arranged in the front inner tank (4).

2. A plastic processing mold according to claim 1, characterized in that: The pressure reducing member (54) comprises an exhaust hole (541) arranged in the front inner groove (4), a circular cavity (542) being arranged in the exhaust hole (541), and a support rod (543) being arranged in the exhaust hole (541) and being located at the central axis of the circular cavity (542), a spring (544) being arranged on the surface of the support rod (543), and a semicircular block (545) being slidably connected to the surface of the support rod (543) and being fixedly connected to the spring (544).

3. A plastic processing mold according to claim 2, characterized in that: The exhaust hole (541) is L-shaped, and one end of the exhaust hole (541) passes through the chassis body (1) to the outside.

4. A plastic processing mold according to claim 2, characterized in that: A sealing gasket (546) in contact with the semicircular block (545) is provided between the circular cavity (542) and the exhaust hole (541).

5. The plastic processing mold according to claim 1, characterized in that: An air pump (6) electrically connected to the power button (51) is provided in the chassis, and an air pump (7) connected to the air supply pipe (53) is provided at the output end of the air pump (6).

6. A plastic processing mold according to claim 5, characterized in that: The power key (51) is a multi-level control unit, and the power key (51) controls the operation of the air extraction pump (6) or the air charging pump (52) in sequence.

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