Plastic product processing injection mold

Abstract

The utility model discloses a plastic product processing injection mold, and relates to the technical field of injection molds. The die comprises an upper die and a lower die, wherein two mounting plates are fixedly mounted on each of two sides, far away from each other, of the lower die. Through the cooperative arrangement of the knocking driving assembly and the ejection assembly, when a double-shaft extension motor is started, a rubber ball is driven by a transmission bevel gear, a driving rotating shaft, an incomplete bevel gear, a connecting bevel gear, a horizontal rotating shaft, a return torsion spring and a connecting rod to continuously knock and vibrate a lower mold; the double-shaft extension motor drives the demolding top plate to move up and down through the reciprocating screw rod, the reciprocating moving block, the moving plate, the vertical sliding rod and the reset spring, so that the plastic product is prevented from falling off from the mold cavity, and the plastic product is prevented from falling off from the mold cavity. And therefore, the plastic product can be automatically ejected out, and workers can conveniently and quickly demould.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely relates to a plastic product processing injection mold. BACKGROUND

[0002] Injection mold is a tool for producing plastic products, by heating and melting plastic material and injecting it into the cavity of the mold, cooling and solidification to get the required plastic products. Injection mold is widely used in industrial production, mainly used for mass production of plastic products, parts, shell, toys, etc.

[0003] The prior art patent with the publication number CN216609857U discloses a plastic product processing injection mold, which includes a lower mold, an upper mold is arranged on the upper surface of the lower mold, and a mold groove is formed on the upper surface of the lower mold. It realizes the function of improving the sealing performance of the injection mold by setting the lower mold, the upper mold, the mold groove, the pressing module, the injection hole, the sealing plate, the connecting plate, the connecting groove, the limiting block, the positioning rod, the fixing rod and the fixing hole. By improving the sealing performance of the injection mold, air is prevented from entering the mold cavity during the injection process, and air bubbles are avoided in the plastic products, preventing the impact on product quality. However, during use, the plastic products often stick to the mold cavity due to improper use of release agent, high temperature of plastic products, etc. At this time, if the mold is directly released, it will cause the plastic products to have burrs, deformation, even breakage, etc., affecting the quality of the plastic products. UTILITY MODEL CONTENTS

[0004] To solve the above problems, the utility model provides a plastic product processing injection mold to solve the problem of burrs, deformation, even breakage, etc. if the plastic products adhering to the mold cavity are directly released.

[0005] The utility model discloses in order to realize above-mentioned purpose specifically adopts following technical scheme: a plastic product processing injection mold, including upper mold and lower mold, the lower mold mutually far away both sides are fixedly installed with two mounting plates, the side of four mounting plates is equipped with first rotation hole, every two corresponding first rotation hole is commonly installed with horizontal pivot in, two horizontal pivots all are fixedly installed with a plurality of connecting rods, a plurality of connecting rods all are solid equipped with with lower mold side department is inlaid rubber ball, the lower mold is equipped with cavity, the cavity is provided with double shaft extension motor, the output shaft bottom of double shaft extension motor is connected with knock drive assembly for driving two horizontal pivots to turn back and forth, the top of lower mold is equipped with avoiding slot, the avoiding slot is slidably installed with corresponding demolding top plate, the output shaft top of double shaft extension motor is connected with ejection assembly for driving demolding top plate moves up and down.

[0006] Preferably, the knocking driving assembly comprises a driving rotating shaft, second rotating holes are arranged on the inner walls of the two sides of the cavity away from each other, the driving rotating shaft is rotatably installed in the two second rotating holes, incomplete bevel gears are fixedly installed at the two ends of the driving rotating shaft, connecting bevel gears are fixedly sleeved on the two horizontal rotating shafts, the two incomplete bevel gears are matched with the two connecting bevel gears respectively, torsion return units are installed on the two horizontal rotating shafts, and the bottom end of the output shaft of the double-shaft extension motor is connected with a transmission unit for driving the synchronous rotation of the driving rotating shaft.

[0007] Preferably, the torsion return unit comprises a fixed sheet fixedly sleeved on the horizontal rotating shaft, and the side portions, away from each other, of the mounting plate and the fixed sheet are jointly and fixedly installed with a return torsion spring.

[0008] Preferably, the transmission unit comprises two transmission bevel gears, one of the transmission bevel gears is fixedly installed on the bottom end of the output shaft of the double-shaft extension motor, the other transmission bevel gear is fixedly sleeved on the driving rotating shaft, and the two transmission bevel gears are meshed with each other.

[0009] Preferably, the ejection assembly comprises a reciprocating screw rod fixedly installed on the top end of the output shaft of the double-shaft extension motor, a reciprocating moving block is threadedly sleeved on the reciprocating screw rod, a plurality of vertical sliding holes, which are in communication with the avoiding grooves, are arranged on the top inner wall of the cavity, vertical sliding rods are slidably installed in the plurality of vertical sliding holes, the top ends of the plurality of vertical sliding rods are fixedly installed on the bottom of the demolding top plate, moving plates are fixedly installed at the bottom ends of the plurality of vertical sliding rods, the plurality of moving plates are located above the reciprocating moving block, and elastic reset elements are installed on the plurality of moving plates.

[0010] Preferably, the elastic reset element comprises a reset spring, and the two ends of the reset spring are fixedly installed on the top inner wall of the cavity and the top of the moving plate respectively.

[0011] Preferably, guide sliding blocks are fixedly installed on the two sides, away from each other, of the reciprocating moving block, guide sliding grooves are arranged on the inner walls of the two sides of the cavity away from each other, and the two guide sliding blocks are slidably installed in the two guide sliding grooves respectively.

[0012] Preferably, a connecting sleeve is fixedly installed on the bottom of the rubber ball, the connecting sleeve is slidably installed on the top end of the connecting rod, a fastening screw hole is arranged on the side of the connecting sleeve, a fastening bolt is threadedly installed in the fastening screw hole, and one end of the fastening bolt abuts against the side of the connecting rod.

[0013] The utility model discloses the following advantages:

[0014] 1. The utility model discloses a knock drive assembly is set, when starting double shaft extension motor, will drive driving shaft synchronous rotation through two meshing transmission bevel gear, and driving shaft rotation will drive rubber ball unceasingly knock the mold through the incomplete bevel gear, connecting bevel gear, horizontal pivot, return torsional spring and connecting rod, and then can make the adhesion between plastic product and the lower mold cavity weaken, thereby in the stripping process, can effectively reduce the plastic product and produce the burr, crack or deformation because of the sudden stress, ensure the quality and integrity of plastic product.

[0015] 2. The utility model discloses a setting of ejection assembly, when double shaft extension motor runs, also drive reciprocating screw rod to rotate, and reciprocating screw rod rotation will drive stripping top plate up and down movement through reciprocating displacement block, moving plate, vertical slide and return spring, when stripping top plate moves upward, can automatically eject the plastic product in the lower mold cavity, and convenient staff carries out quick stripping work. DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the front view cross section structure schematic diagram of the utility model;

[0018] Figure 3 It is the cooperation enlarged three-dimensional structure schematic diagram of horizontal pivot, rubber ball and driving shaft in the utility model;

[0019] Figure 4 It is the cooperation enlarged three-dimensional structure schematic diagram of stripping top plate, moving plate and reciprocating displacement block in the utility model.

[0020] Drawing reference: 1, upper mold; 2, lower mold; 3, mounting plate; 4, horizontal pivot; 5, connecting rod; 6, rubber ball; 7, stripping top plate; 8, driving shaft; 9, incomplete bevel gear; 10, connecting bevel gear; 11, double shaft extension motor; 12, fixed sheet; 13, return torsional spring; 14, transmission bevel gear; 15, vertical slide; 16, moving plate; 17, reciprocating screw rod; 18, reciprocating displacement block; 19, guide slider; 20, return spring; 21, connecting sleeve. SPECIFIC IMPLEMENTATION

[0021] The utility model makes further explanation below combining specific embodiment, however, people skilled in the art should understand, the detailed description given in conjunction with the drawings is to explain better, the structure of the utility model is bound to exceed these limited embodiments, and for some equivalent alternative or common means, this paper does not make detailed description again, but still belongs to the protection scope of this application.

[0022] Figures 1-4The best embodiment of the present utility model, the following in combination with the attached Figure 1 -attached Figure 4 Further illustrate the present utility model.

[0023] The utility model provides a kind of plastic product processing injection mold, including upper mould 1 and lower mould 2, the top of lower mould 2 is fixedly installed with multiple guide posts, upper mould 1 is slidably sleeved on multiple guide posts, the bottom of upper mould 1 and the top of lower mould 2 are all opened with compatible cavity, the side of lower mould 2 is fixed with injection port being communicated with cavity, when using, upper mould 1 can be first moved downwards to be pasted with lower mould 2 and be moulded, at this time, plastic raw material can be filled into cavity through injection port, until forming, upper mould 1 can be moved upwards and be moulded, and plastic product is taken out;Two mounting plates 3 are fixedly installed on the side of lower mould 2, and the side of four mounting plates 3 is opened with first rotating hole, and every two corresponding first rotating holes are rotatably installed with horizontal rotating shaft 4, and multiple connecting rods 5 are fixedly installed on two horizontal rotating shafts 4, and rubber ball 6 is fixedly installed on the top of multiple connecting rods 5, and cavity is opened in lower mould 2, and support rod is fixedly installed on the inner wall of the side of cavity, and the end of two support rods is rotatably installed with double-shaft extension motor 11, and the output shaft bottom end of double-shaft extension motor 11 is connected with knock driving assembly for driving two horizontal rotating shafts 4 to rotate back and forth, and knock driving assembly includes driving rotating shaft 8, and the inner wall of the side of cavity is opened with second rotating hole, and driving rotating shaft 8 is rotatably installed in two second rotating holes, and two ends of driving rotating shaft 8 are fixedly installed with incomplete bevel gear 9, and connecting bevel gear 10 is fixedly sleeved on two horizontal rotating shafts 4, and two incomplete bevel gears 9 are respectively matched with two connecting bevel gears 10, and torsion return unit is installed on two horizontal rotating shafts 4, and torsion return unit includes fixed sheet 12 being rotatably installed on horizontal rotating shaft 4, and return torsion spring 13 is rotatably installed on the side of mounting plate 3 and fixed sheet 12, and the output shaft bottom end of double-shaft extension motor 11 is connected with transmission unit for driving driving rotating shaft 8 to rotate synchronously.When taking out plastic product after moulding, double-shaft extension motor 11 can be first started, and double-shaft extension motor 11 runs and drives driving rotating shaft 8 to rotate synchronously through transmission unit, and driving rotating shaft 8 rotates and drives incomplete bevel gear 9 to rotate, and when incomplete bevel gear 9 rotates and is engaged with connecting bevel gear 10, it drives horizontal rotating shaft 4 to rotate, and horizontal rotating shaft 4 rotates and makes return torsion spring 13 elastically deformed, and rubber ball 6 is driven away from lower mould 2 through connecting rod 5, and when incomplete bevel gear 9 continues to rotate and is disengaged with connecting bevel gear 10, it drives horizontal rotating shaft 4 to automatically reverse under the action of elastic force of return torsion spring 13, and horizontal rotating shaft 4 reverses and drives rubber ball 6 to automatically reset and knock lower mould 2 to vibrate, so that the adhesion between plastic product and lower mould 2 cavity can be weakened, so that in the demoulding process, the burr, crack or deformation of plastic product caused by sudden stress can be effectively reduced, and the quality and integrity of plastic product are ensured.

[0024] As Figure 2As shown, the transmission unit includes two transmission bevel gears 14, one of which is fixedly installed on the bottom end of the output shaft of the double-shaft extension motor 11, and the other is fixedly sleeved on the driving rotating shaft 8, and the two transmission bevel gears 14 are arranged in meshing with each other. When the double-shaft extension motor 11 operates, it will drive one of the transmission bevel gears 14 to rotate, which will in turn drive the other transmission bevel gear 14 to rotate, thereby driving the driving rotating shaft 8 to rotate synchronously, thereby achieving the transmission effect.

[0025] As shown in Figure 2 and Figure 4 , the top of the lower mold 2 is provided with a relief groove, and a matched demolding top plate 7 is slidably installed in the relief groove. The top end of the output shaft of the double-shaft extension motor 11 is connected with an ejection assembly for driving the demolding top plate 7 to move up and down. The ejection assembly includes a reciprocating screw rod 17 fixedly installed on the top end of the output shaft of the double-shaft extension motor 11. A reciprocating displacement block 18 is threadedly sleeved on the reciprocating screw rod 17. A plurality of vertical sliding holes communicating with the relief groove are formed in the top inner wall of the cavity. A plurality of vertical sliding rods 15 are slidably installed in the vertical sliding holes. The top ends of the plurality of vertical sliding rods 15 are fixedly installed on the bottom of the demolding top plate 7. The bottom ends of the plurality of vertical sliding rods 15 are fixedly installed with a plurality of moving plates 16. The plurality of moving plates 16 are located directly above the reciprocating displacement block 18. A plurality of elastic return elements are installed on the plurality of moving plates 16. The elastic return elements include a return spring 20, and the two ends of the return spring 20 are fixedly installed on the top inner wall of the cavity and the top of the moving plate 16, respectively. When the double-shaft extension motor 11 operates, it will drive the reciprocating screw rod 17 to rotate, which will in turn drive the reciprocating displacement block 18 to move up and down. When the reciprocating displacement block 18 moves upward to contact the moving plate 16, the reciprocating displacement block 18 continues to move upward, which will in turn drive the moving plate 16 to move upward, thereby driving the demolding top plate 7 to move upward through the vertical sliding rod 15, and automatically ejecting the plastic product in the cavity of the lower mold 2. When the reciprocating displacement block 18 moves downward, it will be pressed and pushed downward together with the reciprocating displacement block 18 under the elastic force of the return spring 20, thereby driving the demolding top plate 7 to automatically move downward into the relief groove, so as to facilitate the next injection molding process.

[0026] As shown in Figure 2 and Figure 4 , the reciprocating displacement block 18 is fixedly installed with a guide sliding block 19 on each side away from each other. The inner walls of the two sides of the cavity are provided with a guide sliding groove. The two guide sliding blocks 19 are slidably installed in the two guide sliding grooves. Through the cooperation of the guide sliding block 19 and the guide sliding groove, the reciprocating displacement block 18 can only move up and down, and will not rotate together with the reciprocating screw rod 17, thereby achieving the vertical guiding effect, and being stable and reliable in operation.

[0027] As shown in Figure 3As shown, the bottom of the rubber ball 6 is fixedly provided with a connecting sleeve 21, the connecting sleeve 21 is slidably arranged on the top end of the connecting rod 5, the side of the connecting sleeve 21 is provided with a fastening screw hole, a fastening bolt is threadedly arranged in the fastening screw hole, and one end of the fastening bolt abuts against the side of the connecting rod 5. When the fastening bolt is rotated, the connecting sleeve 21 can be loosened or tightly fixed on the connecting rod 5 under the cooperation of the fastening screw hole, so that the rubber ball 6 can be conveniently disassembled and replaced.

[0028] In summary: when the plastic product is injection molded, the upper mold 1 is first moved upward to open the mold, and then the double-shaft extension motor 11 is started. The double-shaft extension motor 11 runs to drive the driving shaft 8 to rotate synchronously through the two meshing transmission bevel gears 14, the driving shaft 8 rotates to drive the incomplete bevel gear 9 to rotate, when the incomplete bevel gear 9 rotates to mesh with the connecting bevel gear 10, it drives the horizontal shaft 4 to rotate, at this time the horizontal shaft 4 rotates to make the return torsional spring 13 elastically deform, at the same time it drives the rubber ball 6 to move away from the lower mold 2 through the connecting rod 5, when the incomplete bevel gear 9 continues to rotate to disengage from the connecting bevel gear 10, under the elastic force of the return torsional spring 13, it drives the horizontal shaft 4 to automatically reverse, the horizontal shaft 4 reverses to drive the rubber ball 6 to automatically reset and knock the lower mold 2 to vibrate, thereby the adhesion between the plastic product and the lower mold 2 cavity can be weakened, at the same time, the double-shaft extension motor 11 also drives the reciprocating screw rod 17 to rotate, under the cooperation of the guide sliding block 19 and the guide sliding groove, the reciprocating screw rod 17 rotates to drive the reciprocating moving block 18 to move up and down, when the reciprocating moving block 18 moves upward to contact the moving plate 16, the reciprocating moving block 18 continues to move upward to drive the moving plate 16 to move upward, thereby the vertical slide rod 15 drives the demolding top plate 7 to move upward, the plastic product in the lower mold 2 cavity is automatically ejected, the staff can quickly take down the plastic product, then the reciprocating moving block 18 moves downward, at this time under the elastic force of the return spring 20, it presses and drives the moving plate 16 to move downward with the reciprocating moving block 18, thereby the demolding top plate 7 is automatically moved into the avoiding slot to facilitate the next injection molding.

[0029] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms, and any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still belongs to the protection scope of the utility model technical scheme.

Claims

1. A plastic article processing injection mold comprising an upper mold (1) and a lower mold (2), characterized in that, Two installation plates (3) are fixedly installed on the two sides of the lower mold (2) away from each other, first rotating holes are formed in the side portions of the four installation plates (3), horizontal rotating shafts (4) are jointly and rotatably installed in every two corresponding first rotating holes, a plurality of connecting rods (5) are fixedly installed on the two horizontal rotating shafts (4), rubber balls (6) that are in abutment with the side portions of the lower mold (2) are fixedly installed on the top ends of the plurality of connecting rods (5), a cavity is formed in the lower mold (2), a double-shaft extension motor (11) is arranged in the cavity, a knocking driving assembly for driving the two horizontal rotating shafts (4) to rotate back and forth is connected to the bottom end of the output shaft of the double-shaft extension motor (11), an avoiding slot is formed in the top portion of the lower mold (2), a demolding top plate (7) that is matched is slidably installed in the avoiding slot, an ejection assembly for driving the demolding top plate (7) to move up and down is connected to the top end of the output shaft of the double-shaft extension motor (11).

2. The plastic article processing injection mold according to claim 1, wherein, The knocking driving assembly comprises a driving rotating shaft (8), second rotating holes are formed in the inner walls of the two sides of the cavity away from each other, the driving rotating shaft (8) is rotatably installed in the two second rotating holes, incomplete bevel gears (9) are fixedly installed at the two ends of the driving rotating shaft (8), connecting bevel gears (10) are fixedly sleeved on the two horizontal rotating shafts (4), the two incomplete bevel gears (9) are matched with the two connecting bevel gears (10) respectively, torsion return units are installed on the two horizontal rotating shafts (4), and a transmission unit for driving the driving rotating shaft (8) to synchronously rotate is connected to the bottom end of the output shaft of the double-shaft extension motor (11).

3. A plastic article processing injection mold according to claim 2, wherein The torsion return unit comprises a fixed sheet (12) that is fixedly sleeved on the horizontal rotating shaft (4), and a return torsion spring (13) is jointly and fixedly installed on the side portions of the installation plate (3) and the fixed sheet (12) that are close to each other.

4. The plastic article processing injection mold according to claim 2, wherein The transmission unit comprises two transmission bevel gears (14), one of the transmission bevel gears (14) is fixedly installed on the bottom end of the output shaft of the double-shaft extension motor (11), the other transmission bevel gear (14) is fixedly sleeved on the driving rotating shaft (8), and the two transmission bevel gears (14) are meshingly arranged.

5. The plastic article processing injection mold according to claim 1, wherein The ejection assembly comprises a reciprocating screw rod (17) that is fixedly installed on the top end of the output shaft of the double-shaft extension motor (11), a reciprocating moving block (18) is threadedly sleeved on the reciprocating screw rod (17), a plurality of vertical sliding holes that are in communication with the avoiding slot are formed in the top inner wall of the cavity, vertical sliding rods (15) are slidably installed in the plurality of vertical sliding holes, the top ends of the plurality of vertical sliding rods (15) are fixedly installed on the bottom portion of the demolding top plate (7), moving plates (16) are fixedly installed at the bottom ends of the plurality of vertical sliding rods (15), the plurality of moving plates (16) are located directly above the reciprocating moving block (18), and elastic return elements are installed on the plurality of moving plates (16).

6. A plastic article processing injection mold according to claim 5, wherein The elastic reset element comprises a reset spring (20), two ends of the reset spring (20) are fixedly installed on the top inner wall of the cavity and the top of the moving plate (16) respectively.

7. The plastic article processing injection mold according to claim 5, wherein The reciprocating moving block (18) is fixedly installed with a guide sliding block (19) on each side thereof away from each other, the cavity is provided with a guide sliding groove on the inner wall of each side thereof away from each other, and the two guide sliding blocks (19) are slidingly installed in the two guide sliding grooves respectively.

8. The plastic article processing injection mold according to claim 1, wherein The bottom of the rubber ball (6) is fixedly installed with a connecting sleeve (21), the connecting sleeve (21) is slidingly installed on the top end of the connecting rod (5), a fastening screw hole is formed in the side of the connecting sleeve (21), a fastening bolt is screwedly installed in the fastening screw hole, and one end of the fastening bolt abuts against the side of the connecting rod (5).

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