An injection mold for plastic processing with convenient demoulding

By introducing paper-shaped copper plates, semiconductor refrigeration plates, vibration components and spray devices into the injection mold, the problems of high residual temperature of the mold and adhesion of the plastic mold are solved, and better mold release effect and mold forming quality are achieved.

CN119078106BActive Publication Date: 2025-03-14无锡泰准科技有限公司
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Patent Information

Application Number
CN202411399848.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-03-14
Estimated Expiration
2044-10-09

AI Technical Summary

Technical Problem

During the release process of existing injection molds for plastic processing, the plastic temperature in the hot melt state is transferred to the mold, resulting in a high residual temperature of the mold, and the plastic mold adheres to the mold cavity, affecting the demolding effect.

Method used

An injection mold including guide rod, square plate, T-bar, compression spring, counter plate, paper copper plate, copper tube, semiconductor refrigeration plate, square shell, U-shaped frame, round head plate and arc-shaped shrapnel is designed. The mold temperature is reduced through the paper copper plate and semiconductor refrigeration plate, the vibrating component helps the counter plate to vibrate and release mold, and the spray device sprays a release agent to prevent adhesion.

Benefits of technology

It effectively reduces the mold temperature, prevents the plastic mold from adhering to the mold cavity and the plate, improves the mold release effect, and avoids mold mold forming failure and equipment damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an injection mold for plastic processing with convenient demoulding, and relates to the technical field of injection molds for plastic processing. The present invention comprises a base plate, a concave module is fixed on the top surface of the base plate, a mold cavity is opened on the right side of the concave module, a slide plate is fixed on the top surface of the base plate, a convex block is slidably installed on the bottom end of the inner part of the slide plate, an injection port is opened on the top right side of the convex block, an electric telescopic rod is fixedly installed on the right side of the top surface of the base plate, the left side of the telescopic end of the electric telescopic rod is fixedly connected with the middle of the right side of the convex block, and inherent guide rods are arranged around the left side of the convex block. The present invention reduces the temperature by the circular copper plate on the abutment plate, so that when the abutment plate ejects the plastic mold, the plastic mold with heat will not adhere to the abutment plate, thereby avoiding the problem that the plastic mold with temperature adheres to the abutment plate and causes poor demoulding effect of the equipment.
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Description

Technical Field

[0001] The invention relates to the technical field of injection molds for plastic processing, in particular to an injection mold for plastic processing which is convenient for demoulding. Background Art

[0002] The main function of the injection mold for plastic processing that is easy to demold is to inject the recycled plastic into the mold, allow the mold to cool quickly, and demold to make the workpiece, reduce the residence time of the workpiece in the mold, speed up the production rhythm, improve production efficiency, reduce the damage of the workpiece during the demolding process, and make the appearance quality of the workpiece better.

[0003] Patent No. CN219667356U discloses a plastic processing injection mold with convenient demoulding, including a base plate, a base mold, a demoulding mechanism and a support plate. The upper surface of the base plate is equipped with a base mold of the plastic processing injection mold, and the side of the base plate is fixedly connected with a support plate for installing the demoulding mechanism. The demoulding mechanism is composed of a pad, a guide rod, a coupling, a hydraulic rod b, and a hydraulic pump b. The upper surface of the support plate is equipped with evenly arranged hydraulic pumps b that can be used for demoulding the plastic processing injection mold. The output end of the hydraulic pump b is connected to the hydraulic rod b, and the upper surface of the hydraulic rod b is connected to the guide rod through a coupling. The upper surface of the guide rod is in contact with the base plate. The base plate, guide rod, coupling, hydraulic rod b, and hydraulic pump b are provided to facilitate demoulding of the injected plastic parts and ensure the processing effect of the plastic injection mold.

[0004] However, the current injection molds for plastic processing that are easy to demold have the following problems: when the injection mold for plastic processing that is easy to demold is in use, since the hot-melt plastic is cooled and formed in the film cavity during demolding, the hot-melt plastic transfers the temperature to the film cavity. After the first mold demolding, the residual temperature in the mold cavity will cause the subsequent plastic mold to cool and form slowly. When the mold is not completely cooled, the hot plastic mold is easy to stick to the mold cavity, thereby causing the hot plastic mold to adhere to the abutment plate, resulting in poor demolding effect of the equipment. Therefore, we propose an injection mold for plastic processing that is easy to demold. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an injection mold for plastic processing that is easy to demould, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an injection mold for plastic processing that is convenient for demoulding, comprising a base plate, a concave module is fixed on the top surface of the base plate, a mold cavity is opened on the right side of the concave module, a slide plate is fixed on the top surface of the base plate, a convex block is slidably installed on the bottom end of the inner part of the slide plate, an injection port is opened on the top right side of the convex block, an electric telescopic rod is fixedly installed on the right side of the top surface of the base plate, the telescopic end of the electric telescopic rod is fixedly connected to the middle of the right side of the convex block on the left side, the left side of the convex block is surrounded by inherent guide rods, four of the guide rods penetrate and are slidably installed on the right side of the concave module, a square plate is fixed on the side of the four guide rods away from the convex block, a T-shaped rod is fixed in the middle of the right side of the square plate, a compression spring is fixed on the outer wall of the T-shaped rod, the T-shaped rod penetrates and is slidably installed on the left side of the concave module, a back plate is fixed on the side of the T-shaped rod away from the square plate, and a heat dissipation component is arranged on the left side of the back plate;

[0007] The heat dissipation component includes a circular copper plate, which is fixed on the left side of the abutment plate. Two copper tubes are fixed on the left side of the circular copper plate. The two copper tubes penetrate and are slidably installed on the inner wall of the mold cavity of the concave module. One end of the two copper tubes away from the circular copper plate penetrates and is fixedly connected to the right side of the square plate. A semiconductor refrigeration plate is fixedly installed on the left side of the two copper tubes. The right side of the semiconductor refrigeration plate is fixedly connected to the left side of the square plate. A square shell is fixedly installed on the left side of the square plate. The circular copper plate on the abutment plate reduces the temperature, and the recycled plastic in the hot melt state is quickly formed, which reduces the residual temperature in the membrane cavity of the concave module, so that when the abutment plate ejects the plastic mold, the plastic mold with heat will not adhere to the abutment plate. A vibration component is arranged on the right side of the square plate.

[0008] The vibration assembly includes two U-shaped frames, the two U-shaped frames are fixed on the right side of the square plate, the inner walls of the two U-shaped frames are respectively rotatably mounted with round head plates, the two round head plates are fixed with arc springs on the sides away from each other, and the two arc springs are fixed on the right side of the square plate on the sides away from the two round head plates, and two arc strip blocks are fixed on the left side of the concave module, and the round head plate hits the arc strip block to generate a moving vibration amplitude, and the arc strip block transmits the vibration to the concave module, so that when the push plate ejects the plastic mold, the push plate can vibrate to eject the plastic mold;

[0009] The top surface of the square shell is provided with a spray device, and the front and back surfaces of the spray device are provided with anti-shake devices.

[0010] According to the above technical solution, the slide plate is located on the right side of the concave module, the compression spring is sleeved on the outer wall of the T-shaped rod, the side of the compression spring away from the T-shaped rod is fixedly connected to the left side of the concave module, the outer wall of the abutment plate is slidably connected to the inner wall of the mold cavity of the concave module, the semiconductor refrigeration plate is located inside the square shell, a heat dissipation port is opened on the left side of the square shell, a dustproof net is provided on the inner wall of the heat dissipation port of the square shell, and the two arc strip blocks are both on the movement trajectory of the two round head plates.

[0011] According to the above technical scheme, the spray device includes an L-shaped long plate, two F-shaped plates, a roller, a cross plate and an electric nozzle. The L-shaped long plate is fixed on the top surface of the square shell. A strip groove is opened on the top surface of the L-shaped long plate. The two F-shaped plates are slidably installed in front and behind the outer wall of the L-shaped long plate. The bottom surfaces of the two F-shaped plates are fixedly connected to the top surface of the concave module. The roller is rotatably installed opposite the two F-shaped plates. The roller is located below the strip groove of the L-shaped long plate. The cross plate is rotatably installed on the inner wall of the strip groove of the L-shaped long plate. The top surface of the cross plate is fixedly installed with an electric nozzle, which sprays a release agent onto the bump so that the plastic mold will not adhere to the bump when the equipment is demolded.

[0012] According to the above technical solution, the spray device also includes a connecting block, an arc-shaped elastic bar and a cylindrical block. The connecting block is fixed at the upper left side of the horizontal plate, the arc-shaped elastic bar is fixed at the side of the connecting block away from the horizontal plate, the cylindrical block is fixed on the inner wall of the strip groove of the L-shaped long plate, and the outer wall of the cylindrical block is fixedly connected to the side of the arc-shaped elastic bar away from the connecting block. Under the elastic force of the arc-shaped elastic bar, the horizontal plate is limited by the elastic force of the arc-shaped elastic bar during the rotation process, so that the horizontal plate will not hit the plastic mold ejected by the anti-plate when rotating.

[0013] According to the above technical solution, an interface is provided at the upper left end of the electric spray head, a nozzle is provided at the lower right end of the electric spray head, the nozzle of the electric spray head is aligned with the upper left side of the protrusion, and the arc-shaped elastic strip is located above the strip groove of the L-shaped long plate.

[0014] According to the above technical scheme, the anti-shake device includes two thin rods, two inner circular blocks, two springs 1, two U-shaped groove baffles and two thick blocks, the two thin rods are fixed on the front and back sides of the cylindrical block, the two inner circular blocks are slidably installed on the left side of the outer wall of the two thin rods, the bottom surfaces of the two inner circular blocks are fixedly connected to the top surface of the concave module, the two springs 1 are fixed on the right side of the two inner circular blocks, the two springs are sleeved on the outer walls of the two thin rods, the two U-shaped groove baffles are fixed on the top surfaces of the two inner circular blocks, the two thick blocks are fixed on the side of the two thin rods away from the cylindrical block, the bottom surfaces of the two thick blocks are fixedly connected to the top surface of the convex block, and when the concave module and the convex block are closed, under the action of the elastic force of the spring 1, the convex block and the concave module will not shake when the film is closed.

[0015] According to the above technical solution, the anti-shake device also includes two L-shaped rods, two shells, two springs 2 and two arc bottom plates, the two L-shaped rods are fixed on the top surfaces of the two thick blocks, the two shells are fixed on the left sides of the two L-shaped rods, the two springs 2 are fixed on the top ends of the two shells, the two arc bottom plates are slidably installed on the inner walls of the two shells, the top surfaces of the two arc bottom plates are fixedly connected to one end of the two springs 2 away from the two shells, and under the elastic force of the spring 2, the arc bottom plate is tightly pressed against the U-shaped groove baffle, so that the convex block and the concave module will not relax during the injection molding process of the equipment.

[0016] According to the above technical solution, the two U-shaped groove baffles are located above the two springs 1, and the two U-shaped groove baffles are on the movement trajectory of the two arc bottom plates.

[0017] The present invention provides an injection mold for plastic processing that is easy to demould. It has the following beneficial effects:

[0018] (1) The present invention uses a guide rod, a square plate, a T-shaped rod, a compression spring, a push plate, a circular copper plate, a copper tube, a semiconductor refrigeration plate, a square shell, a U-shaped frame, a round head plate and an arc-shaped spring piece in conjunction with an arc strip block. The circular copper plate on the push plate reduces the temperature, and the recycled plastic in a hot-melt state is quickly formed, thereby reducing the residual temperature in the membrane cavity of the concave module. When the push plate ejects the plastic mold, the hot plastic mold will not adhere to the push plate, thereby preventing the hot plastic mold from adhering to the push plate and causing poor demolding effect of the equipment. In addition, when the round head plate hits the arc strip block, a vibration amplitude of movement will be generated. The arc strip block transmits the vibration to the concave module, so that when the push plate ejects the plastic mold, the push plate can vibrate to eject the plastic mold, thereby preventing the plastic mold from being stuck in the concave module and causing poor demolding effect of the equipment.

[0019] (2) The present invention sets a spray device so that the L-shaped long plate, F-shaped plate, roller, cross plate, electric nozzle, connecting block and arc-shaped elastic strip cooperate with the cylindrical block. The electric nozzle sprays the demoulding agent to the protrusion, so that when the equipment is demoulding, the plastic mold will not adhere to the protrusion, thus preventing the plastic mold from adhering to the protrusion and causing poor demoulding effect of the equipment. In addition, under the elastic force of the arc-shaped elastic strip, the cross plate is limited by the elastic force of the arc-shaped elastic strip during rotation, so that the cross plate will not hit the plastic mold ejected by the anti-plate when rotating, thus preventing the plastic mold ejected by the anti-plate from being hit and causing damage to the plastic mold.

[0020] (3) The present invention sets an anti-shake device so that the thin rod, inner circle block, spring one, U-shaped groove baffle, thick block, L-shaped rod, shell and spring two cooperate with the arc bottom plate. When the concave module and the convex block are combined, the elastic force of spring one prevents the convex block and the concave module from shaking, thus preventing the convex block and the concave module from shaking and causing the equipment to run smoothly. Moreover, under the elastic force of spring two, the arc bottom plate is tightly pressed against the U-shaped groove baffle, so that during the injection molding process, the convex block and the concave module will not loosen, thus preventing the convex block and the concave module from loosening and causing the mold forming in the concave module to fail to meet the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the present invention as a whole;

[0022] Figure 2 It is a cross-sectional schematic diagram of the present invention as a whole;

[0023] Figure 3 It is a cross-sectional schematic diagram of the square plate of the present invention;

[0024] Figure 4 For the present invention Figure 3 A local enlarged schematic diagram of the middle A;

[0025] Figure 5 is a cross-sectional schematic diagram of the spray device of the present invention;

[0026] Figure 6 is a cross-sectional schematic diagram of the anti-shake device of the present invention;

[0027] Figure 7 For the present invention Figure 6 A local enlarged schematic diagram of point B in the middle.

[0028] In the figure: 1, chassis plate; 2, concave module; 3, slide plate; 4, convex block; 5, electric telescopic rod; 6, guide rod; 7, spray device; 71, L-shaped long plate; 72, F-shaped plate; 73, roller; 74, horizontal plate; 75, electric spray head; 76, connecting block; 77, arc spring bar; 78, cylindrical block; 8, anti-shake device; 81, thin rod; 82, inner circle block; 83, spring 1; 84, U-shaped groove baffle; 85. thick block; 86. L-shaped rod; 87. shell; 88. spring 2; 89. arc bottom plate; 9. square plate; 10. T-shaped rod; 11. compression spring; 12. abutment plate; 61. heat dissipation component; 62. vibration component; 611. circular copper plate; 612. copper tube; 613. semiconductor refrigeration plate; 614. square shell; 621. U-shaped frame; 622. round head plate; 623. arc spring; 624. arc strip block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] See also Figure 1-Figure 7 , one embodiment of the present invention is: an injection mold for plastic processing with convenient demoulding, comprising a base plate 1, a concave module 2 is fixed on the top surface of the base plate 1, a mold cavity is opened on the right side of the concave module 2, a slide plate 3 is fixed on the top surface of the base plate 1, the slide plate 3 is located on the right side of the concave module 2, a convex block 4 is slidably installed at the bottom end of the slide plate 3, an injection port is opened on the top right side of the convex block 4, an electric telescopic rod 5 is fixedly installed on the right side of the top surface of the base plate 1, and the left side of the telescopic end of the electric telescopic rod 5 is fixedly connected to the middle of the right side of the convex block 4;

[0031] There are inherent guide rods 6 around the left side of the protrusion 4, and four guide rods 6 penetrate and are slidably installed on the right side of the concave module 2. A square plate 9 is fixed to the side of the four guide rods 6 away from the protrusion 4, and a T-shaped rod 10 is fixed in the middle of the right side of the square plate 9. A compression spring 11 is fixed to the outer wall of the T-shaped rod 10. The T-shaped rod 10 penetrates and is slidably installed on the left side of the concave module 2. A stop plate 12 is fixed to the side of the T-shaped rod 10 away from the square plate 9. The compression spring 11 is sleeved on the outer wall of the T-shaped rod 10. The side of the compression spring 11 away from the T-shaped rod 10 is fixedly connected to the left side of the concave module 2, and the outer wall of the stop plate 12 is slidably connected to the inner wall of the mold cavity of the concave module 2;

[0032] A heat dissipation component 61 is provided on the left side of the plate 12, and the heat dissipation component 61 includes a circular copper plate 611, which is fixed on the left side of the plate 12, and two copper tubes 612 are fixed on the left side of the circular copper plate 611. The two copper tubes 612 penetrate and are slidably installed on the inner wall of the mold cavity of the concave module 2, and one end of the two copper tubes 612 away from the circular copper plate 611 penetrates and is fixedly connected to the right side of the square plate 9, and a semiconductor refrigeration plate 613 is fixedly installed on the left side of the two copper tubes 612, and the right side of the semiconductor refrigeration plate 613 is fixedly connected to the left side of the square plate 9, and the left side of the square plate 9 is fixed A square shell 614 is installed, a semiconductor refrigeration plate 613 is located inside the square shell 614, a heat dissipation port is opened on the left side of the square shell 614, and a dustproof net is set on the inner wall of the heat dissipation port of the square shell 614. The circular copper plate 611 on the plate 12 reduces the temperature, and the recycled plastic in the hot melt state is quickly formed, which reduces the residual temperature in the film cavity of the concave module 2, so that when the push plate 12 pushes out the plastic mold, the hot plastic mold will not adhere to the push plate 12, so as to avoid the plastic mold with temperature adhering to the push plate 12 when the injection mold for plastic processing is ejected, resulting in poor demoulding effect of the equipment;

[0033] A vibration assembly 62 is provided on the right side of the square plate 9. The vibration assembly 62 includes two U-shaped frames 621. The two U-shaped frames 621 are fixed on the right side of the square plate 9. Round head plates 622 are rotatably installed on the inner walls of the two U-shaped frames 621. Arc spring pieces 623 are fixed on the side of the two round head plates 622 away from each other. The two arc spring pieces 623 are fixed on the right side of the square plate 9 away from the two round head plates 622. Two arc strip blocks 624 are fixed on the left side of the concave module 2. The two arc strip blocks 624 are both on the movement trajectory of the two round head plates 622. The round head plate 622 hits the arc strip block 624 to generate a moving vibration amplitude. The arc strip block 624 transmits the vibration to the concave module 2, so that when the push plate 12 ejects the plastic mold, the push plate 12 can vibrate to eject the plastic mold, thereby avoiding the plastic processing injection mold being stuck in the concave module 2 when ejecting the mold, resulting in poor equipment ejection effect.

[0034] When in use, the staff starts the electric telescopic rod 5 on the bottom frame plate 1, and the telescopic end of the electric telescopic rod 5 starts to move to the left. The telescopic end of the electric telescopic rod 5 drives the protrusion 4 to move to the left, and the protrusion 4 slides to the left on the slide plate 3. The protrusion 4 slides to the left into the mold cavity of the concave module 2, and the protrusion 4 and the concave module 2 complete the mold closing, and the recycled plastic is injected into the injection molding port of the protrusion 4. The recycled plastic is molded in the mold cavity of the concave module 2, and the telescopic end of the electric telescopic rod 5 is reset, and the protrusion 4 and the concave module 2 are separated to complete the plastic mold processing. When the injection mold for plastic processing is demolded, the hot-melt plastic is cooled and molded in the film cavity, and the hot-melt plastic transfers the temperature to the film cavity. During the first mold demolding process After that, the residual temperature in the mold cavity will cause the subsequent plastic mold to cool and form slowly. When the mold is not completely cooled, the hot plastic mold is easy to stick to the mold cavity. When the telescopic end of the electric telescopic rod 5 drives the protrusion 4 to move to the left, the protrusion 4 drives the guide rod 6 to move to the left, and the guide rod 6 slides to the left in the concave module 2. The guide rod 6 drives the square plate 9 to move to the left, and the square plate 9 drives the T-shaped rod 10 to move to the left. The T-shaped rod 10 drives the compression spring 11 to move to the left. The compression spring 11 is pulled up, and the T-shaped rod 10 drives the back plate 12 to move to the left. The back plate 12 drives the circular copper plate 611 to move to the left. The circular copper plate 611 drives the copper tube 612 to move to the left, and the copper tube 612 drives the semiconductor refrigeration plate 613 Move to the left, the square plate 9 drives the square shell 614 to move to the left, and the square shell 614 protects the semiconductor refrigeration plate 613. At the same time, the semiconductor refrigeration plate 613 on the square plate 9 is started, and the semiconductor refrigeration plate 613 starts to cool. The semiconductor refrigeration plate 613 transfers cold air to the copper tube 612, and the circular copper plate 611 starts to lower the temperature. The circular copper plate 611 absorbs the heat on the abutment plate 12, allowing the abutment plate 12 to conduct the residual temperature in the membrane cavity of the concave module 2. When the injection port of the protrusion 4 injects the recycled plastic, the recycled plastic is quickly cooled and formed on the abutment plate 12. When the telescopic end of the electric telescopic rod 5 is reset, the protrusion 4 drives the guide rod 6 to move to the right, and the guide rod 6 drives the square plate 9 to move to the right, and the square plate 9 drives the square shell 614 Move to the right, the square plate 9 drives the semiconductor refrigeration plate 613 to move to the right, the square plate 9 drives the T-shaped rod 10 to move to the right, and under the elastic force of the compression spring 11, the T-shaped rod 10 drives the push plate 12 to move to the right, and the push plate 12 pushes out the plastic mold, so that the temperature of the circular copper plate 611 on the push plate 12 is reduced, and the recycled plastic in the hot melt state is quickly formed, which reduces the residual temperature in the membrane cavity of the concave module 2, so that when the push plate 12 pushes out the plastic mold, the hot plastic mold will not adhere to the push plate 12, preventing the plastic mold from adhering to the equipment parts when the equipment is in use, thereby avoiding the problem that the hot plastic mold adheres to the push plate 12 when the injection mold for plastic processing is demolded, resulting in poor demolding effect of the equipment.

[0035] When the T-shaped rod 10 drives the plate 12 to move rightward, the plate 12 drives the U-shaped frame 621 to move rightward, and the U-shaped frame 621 drives the round head plate 622 to move rightward. When the round head plate 622 moves to the right, the round head plate 622 hits the arc block 624. Under the action of the extrusion force, the round head plate 622 rotates in the U-shaped frame 621, and the arc spring piece 623 on the round head plate 622 is deformed. When the telescopic end of the electric telescopic rod 5 moves to the left, the round head plate 622 is deformed under the elastic force of the arc spring piece 623. Under the action, the round head plate 622 is reset in the U-shaped frame 621, so that when the equipment is demoulding, the round head plate 622 hits the arc block 624 to generate a moving vibration amplitude, and the arc block 624 transmits the vibration to the concave module 2, so that when the push plate 12 pushes out the plastic mold, the push plate 12 can vibrate to push out the plastic mold, preventing the plastic mold from being stuck in the concave module 2 when the equipment is in use, thereby avoiding the problem of poor demoulding effect of the equipment caused by the plastic mold being stuck in the concave module 2 when the injection mold for plastic processing is demoulding.

[0036] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a spray device 7 is provided on the top surface of the square shell 614, and the spray device 7 includes an L-shaped long plate 71, two F-shaped plates 72, a roller 73, a horizontal plate 74 and an electric spray head 75. The L-shaped long plate 71 is fixed on the top surface of the square shell 614, and a strip-shaped notch is provided on the top surface of the L-shaped long plate 71. The two F-shaped plates 72 are slidably installed in front and behind the outer wall of the L-shaped long plate 71. The bottom surfaces of the two F-shaped plates 72 are fixedly connected to the top surface of the concave module 2. The roller 73 is rotatably installed opposite to the two F-shaped plates 72. The roller 73 is located at Below the strip groove of the L-shaped long plate 71, the horizontal plate 74 is rotatably mounted on the inner wall of the strip groove of the L-shaped long plate 71, and an electric spray head 75 is fixedly mounted on the top surface of the horizontal plate 74. An interface is provided at the upper left end of the electric spray head 75, and a nozzle is provided at the lower right end of the electric spray head 75. The nozzle of the electric spray head 75 is aimed at the upper left of the protrusion 4, and the electric spray head 75 sprays a release agent onto the protrusion 4, so that the plastic mold will not adhere to the protrusion 4 when the equipment is demolding, thereby avoiding the plastic mold for plastic processing from adhering to the protrusion 4 when the injection mold is demolding, resulting in poor demolding effect of the equipment.

[0037] The spray device 7 also includes a connecting block 76, an arc-shaped elastic strip 77 and a cylindrical block 78. The connecting block 76 is fixed on the upper left side of the cross plate 74, the arc-shaped elastic strip 77 is fixed on the side of the connecting block 76 away from the cross plate 74, the cylindrical block 78 is fixed on the inner wall of the strip groove of the L-shaped long plate 71, and the outer wall of the cylindrical block 78 is fixedly connected to the side of the arc-shaped elastic strip 77 away from the connecting block 76. The arc-shaped elastic strip 77 is located above the strip groove of the L-shaped long plate 71. Under the elastic force of the arc-shaped elastic strip 77, the cross plate 74 is limited by the elastic force of the arc-shaped elastic strip 77 during the rotation process, so that the cross plate 74 will not hit the plastic mold ejected by the push plate 12 during rotation, thereby avoiding the plastic processing injection mold being knocked against the plastic mold ejected by the push plate 12 when the plastic processing injection mold is ejected from the mold, causing damage to the plastic mold.

[0038] The front and back sides of the spray device 7 are provided with an anti-shake device 8, which includes two thin rods 81, two inner circular blocks 82, two springs 83, two U-shaped groove baffles 84 and two thick blocks 85. The two thin rods 81 are fixed on the front and back sides of the cylindrical block 78, the two inner circular blocks 82 are slidably mounted on the left side of the outer wall of the two thin rods 81, the bottom surfaces of the two inner circular blocks 82 are fixedly connected to the top surface of the concave module 2, the two springs 83 are fixed on the right sides of the two inner circular blocks 82, and the two springs 83 are sleeved on the outer walls of the two thin rods 81. Two U-shaped groove baffles 84 are fixed on the top surfaces of the two inner circular blocks 82, and two thick blocks 85 are fixed on the side of the two thin rods 81 away from the cylindrical block 78. The bottom surfaces of the two thick blocks 85 are fixedly connected to the top surface of the protrusion 4. The two U-shaped groove baffles 84 are located above the two springs 83. When the concave module 2 and the protrusion 4 are closed, the elastic force of the spring 83 allows the protrusion 4 and the concave module 2 to be closed without shaking, thereby avoiding the protrusion 4 and the concave module 2 from shaking when the injection mold for plastic processing is closed, which causes the equipment to run smoothly.

[0039] The anti-shake device 8 also includes two L-shaped rods 86, two shells 87, two springs 88 and two arc bottom plates 89. The two L-shaped rods 86 are fixed on the top surfaces of the two thick blocks 85, the two shells 87 are fixed on the left sides of the two L-shaped rods 86, the two springs 88 are fixed on the top ends of the two shells 87, the two arc bottom plates 89 are slidably installed on the inner walls of the two shells 87, the top surfaces of the two arc bottom plates 89 are fixedly connected to one end of the two springs 88 away from the two shells 87, the two U-shaped groove baffles 84 are on the movement trajectory of the two arc bottom plates 89, and under the elastic force of the springs 88, the arc bottom plates 89 are tightly pressed against the U-shaped groove baffles 84, so that during the injection molding process of the equipment, the protrusions 4 and the concave modules 2 will not be loose, so as to avoid the protrusions 4 and the concave modules 2 being loosened when the injection mold for plastic processing is closed, resulting in the mold molding in the concave module 2 not meeting the standards.

[0040] The staff connects the release agent infusion tube to the interface of the electric spray head 75. When the square plate 9 drives the square shell 614 to move to the left, the square shell 614 drives the L-shaped long plate 71 to move to the left. The L-shaped long plate 71 moves to the left in the F-shaped plate 72. The L-shaped long plate 71 drives the cross plate 74 to move to the left. The cross plate 74 drives the electric spray head 75 to move to the left. In the process of the cross plate 74 moving to the left, the cross plate 74 will contact the roller 73. Under the action of friction, the roller 73 rolls on the cross plate 74. At the same time, under the action of the extrusion force, the cross plate 74 rotates upward in the strip groove of the L-shaped long plate 71, and the cross plate 74 drives the electric spray head 75 to move to the left. When the telescopic end of the electric telescopic rod 5 is reset, the roller 73 leaves the horizontal plate 74, and under the action of gravity, the horizontal plate 74 rotates downward in the strip groove of the L-shaped long plate 71, and the horizontal plate 74 drives the electric spray head 75 to rotate downward, and the nozzle of the electric spray head 75 will rotate to the upper left of the protrusion 4, and the electric spray head 75 will be started, so that the electric spray head 75 sprays the demoulding agent to the protrusion 4, so that the plastic mold will not adhere to the protrusion 4 when the equipment is demoulding, and the plastic mold is prevented from adhering to the protrusion 4 when the equipment is in use, thereby avoiding the problem that the plastic mold for plastic processing adheres to the protrusion 4 when the injection mold is demoulding, causing the equipment to have a poor demoulding effect.

[0041] When the cross plate 74 rotates downward in the strip groove of the L-shaped long plate 71, the cross plate 74 drives the connecting block 76 to rotate downward, and the connecting block 76 drives the arc spring bar 77 to rotate downward. At the same time, the L-shaped long plate 71 drives the cylindrical block 78 to move to the right. The arc spring bar 77 is restricted by the cylindrical block 78, and the arc spring bar 77 is deformed. Under the elastic force of the arc spring bar 77, the cross plate 74 is restricted by the elastic force of the arc spring bar 77 during the rotation process, so that the cross plate 74 will not hit the plastic mold ejected by the push plate 12 when rotating, thereby preventing the ejected plastic mold from being hit when the equipment is in use, thereby avoiding the problem of damage to the plastic mold caused by the plastic mold ejected by the push plate 12 when the injection mold for plastic processing is ejected.

[0042] When the square shell 614 drives the L-shaped long plate 71 to move to the left, the L-shaped long plate 71 drives the cylindrical block 78 to move to the left, and the cylindrical block 78 drives the thin rod 81 to move to the left. The thin rod 81 slides to the left in the inner circular block 82, and the inner circular block 82 supports the U-shaped groove baffle 84. The thin rod 81 drives the thick block 85 to move to the left, and the spring 1 83 on the thick block 85 begins to shrink. During the contraction of the spring 1 83, the spring 1 83 enters the U-shaped groove baffle 84 to prevent the spring 1 83 from pinching the hand. When the concave module 2 and the convex block 4 are closed, under the action of the elastic force of the spring 1 83, the convex block 4 and the concave module 2 will not shake when the film is closed, so as to prevent the convex block 4 and the concave module 2 from shaking when the device is in use, thereby avoiding the problem of smooth operation of the device caused by the shaking of the convex block 4 and the concave module 2 when the injection mold for plastic processing is closed.

[0043] When the thin rod 81 drives the thick block 85 to move to the left, the thick block 85 drives the L-shaped rod 86 to move to the left, the L-shaped rod 86 drives the shell 87 to move to the left, the shell 87 drives the spring 2 88 to move to the left, and the spring 2 88 drives the arc bottom plate 89 to move to the left. In the process of the arc bottom plate 89 moving to the left, the arc bottom plate 89 contacts the U-shaped groove baffle 84. Under the action of the extrusion force, the arc bottom plate 89 moves upward in the shell 87, and the spring 2 88 begins to shrink. Under the elastic force of the spring 2 88, the arc bottom plate 89 is tightly pressed against the U-shaped groove baffle 84, so that the convex block 4 and the concave module 2 will not relax during the injection molding process of the equipment, thereby preventing the convex block 4 and the concave module 2 from loosening during the injection molding of the equipment, thereby avoiding the problem of substandard mold forming in the concave module 2 caused by the convex block 4 and the concave module 2 loosening during the film closing of the injection mold for plastic processing.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold for plastic processing with convenient demoulding, comprising a base plate (1), a concave module (2) being fixed on the top surface of the base plate (1), a mold cavity being provided on the right side of the concave module (2), a slide plate (3) being fixed on the top surface of the base plate (1), a convex block (4) being slidably mounted on the bottom end of the slide plate (3), an injection port being provided on the top right side of the convex block (4), an electric telescopic rod (5) being fixedly mounted on the right side of the top surface of the base plate (1), the left side of the telescopic end of the electric telescopic rod (5) being fixedly connected to the middle of the right side of the convex block (4), characterized in that: The left side of the protrusion (4) is surrounded by inherent guide rods (6), four of the guide rods (6) penetrate and are slidably mounted on the right side of the concave module (2), a square plate (9) is fixed on the side of the four guide rods (6) away from the protrusion (4), a T-shaped rod (10) is fixed in the middle of the right side of the square plate (9), a compression spring (11) is fixed to the outer wall of the T-shaped rod (10), the T-shaped rod (10) penetrates and is slidably mounted on the left side of the concave module (2), a resist plate (12) is fixed on the side of the T-shaped rod (10) away from the square plate (9), and a heat dissipation component (61) is arranged on the left side of the resist plate (12); The heat dissipation component (61) comprises a circular copper plate (611), the circular copper plate (611) being fixed on the left side of the abutment plate (12), two copper tubes (612) being fixed on the left side of the circular copper plate (611), the two copper tubes (612) being passed through and slidably mounted on the inner wall of the mold cavity of the concave module (2), the ends of the two copper tubes (612) away from the circular copper plate (611) being passed through and fixedly connected to the right side of the square plate (9), a semiconductor refrigeration plate (613) being fixedly mounted on the left side of the two copper tubes (612), the right side of the semiconductor refrigeration plate (613) being fixedly connected to the left side of the square plate (9), a square shell (614) being fixedly mounted on the left side of the square plate (9), and a vibration component (62) being arranged on the right side of the square plate (9); The vibration assembly (62) comprises two U-shaped frames (621), the two U-shaped frames (621) are fixed on the right side of the square plate (9), the inner walls of the two U-shaped frames (621) are respectively rotatably mounted with round head plates (622), the two round head plates (622) are fixed with arc-shaped spring pieces (623) on the sides away from each other, the two arc-shaped spring pieces (623) are fixed on the right side of the square plate (9) on the sides away from the two round head plates (622), and two arc strip blocks (624) are fixed on the left side of the concave module (2), and the two arc strip blocks (624) are both located on the movement trajectory of the two round head plates (622); The top surface of the square shell (614) is provided with a spray device (7), and the front and back surfaces of the spray device (7) are provided with anti-shake devices (8).

2. The easy-to-demold plastics processing injection mold according to claim 1, characterized in that: The slide plate (3) is located on the right side of the concave module (2), the compression spring (11) is sleeved on the outer wall of the T-shaped rod (10), the side of the compression spring (11) away from the T-shaped rod (10) is fixedly connected to the left side of the concave module (2), the outer wall of the abutment plate (12) is slidably connected to the inner wall of the mold cavity of the concave module (2), the semiconductor refrigeration plate (613) is located inside the square shell (614), a heat dissipation port is opened on the left side of the square shell (614), and a dustproof net is provided on the inner wall of the heat dissipation port of the square shell (614).

3. The easy-to-demold plastics processing injection mold according to claim 2, characterized in that: The spray device (7) comprises an L-shaped long plate (71), two F-shaped plates (72), a roller (73), a transverse plate (74) and an electric spray head (75); the L-shaped long plate (71) is fixed on the top surface of the square shell (614); a strip-shaped slot is provided on the top surface of the L-shaped long plate (71); the two F-shaped plates (72) are slidably mounted on the front and rear of the outer wall of the L-shaped long plate (71); the bottom surfaces of the two F-shaped plates (72) are fixedly connected to the top surface of the concave module (2); the roller (73) is rotatably mounted directly opposite the two F-shaped plates (72); the roller (73) is located below the strip-shaped slot of the L-shaped long plate (71); the transverse plate (74) is rotatably mounted on the inner wall of the strip-shaped slot of the L-shaped long plate (71); and the electric spray head (75) is fixedly mounted on the top surface of the transverse plate (74).

4. The easy-to-demold plastics processing injection mold according to claim 3, characterized in that: The spray device (7) further comprises a connecting block (76), an arc-shaped elastic strip (77) and a cylindrical block (78); the connecting block (76) is fixed to the upper left of the transverse plate (74); the arc-shaped elastic strip (77) is fixed to a side of the connecting block (76) away from the transverse plate (74); the cylindrical block (78) is fixed to the inner wall of the strip-shaped notch of the L-shaped long plate (71); and the outer wall of the cylindrical block (78) is fixedly connected to a side of the arc-shaped elastic strip (77) away from the connecting block (76).

5. The easy-to-demold plastics processing injection mold according to claim 4, characterized in that: An interface is provided at an upper left end of the electric spray head (75), and a nozzle is provided at a lower right end of the electric spray head (75). The nozzle of the electric spray head (75) is aligned with the upper left side of the protrusion (4), and the arc-shaped elastic strip (77) is located above the strip-shaped notch of the L-shaped long plate (71).

6. The easy-to-demold plastics processing injection mold according to claim 5, characterized in that: The anti-shake device (8) comprises two thin rods (81), two inner circular blocks (82), two springs (83), two U-shaped groove baffles (84) and two thick blocks (85). The two thin rods (81) are fixed on the front and back sides of the cylindrical block (78). The two inner circular blocks (82) are slidably mounted on the left side of the outer wall of the two thin rods (81). The bottom surfaces of the two inner circular blocks (82) are fixedly connected to the top surface of the concave module (2). The two springs (83) are fixed on the right side of the two inner circular blocks (82). The two springs (83) are sleeved on the outer walls of the two thin rods (81). The two U-shaped groove baffles (84) are fixed on the top surfaces of the two inner circular blocks (82). The two thick blocks (85) are fixed on the side of the two thin rods (81) away from the cylindrical block (78). The bottom surfaces of the two thick blocks (85) are fixedly connected to the top surface of the convex block (4).

7. The easy-to-demold plastics processing injection mold according to claim 6, characterized in that: The anti-shake device (8) further comprises two L-shaped rods (86), two housings (87), two springs (88) and two arc bottom plates (89), wherein the two L-shaped rods (86) are fixed to the top surfaces of the two thick blocks (85), the two housings (87) are fixed to the left sides of the two L-shaped rods (86), the two springs (88) are fixed to the top ends of the two housings (87), the two arc bottom plates (89) are slidably mounted on the inner walls of the two housings (87), and the top surfaces of the two arc bottom plates (89) are fixedly connected to one end of the two springs (88) away from the two housings (87).

8. The easy-to-demold plastics processing injection mold according to claim 7, characterized in that: The two U-shaped groove baffles (84) are located above the two springs 1 (83), and the two U-shaped groove baffles (84) are located on the movement tracks of the two arc bottom plates (89).

Citation Information

Patent Citations

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