Injection molding equipment for rear cover of press

Abstract

The utility model discloses injection molding equipment for a rear cover of a press, and relates to the technical field of injection molding equipment. According to the injection molding equipment for the rear cover of the press, the bottom surface of the mold box can be knocked through the arranged cam block and the cam head to facilitate demolding, during use, the driving motor is started to drive the shaft rod to enable the cam block to rotate, and then the cam block drives the cam head to rotate to knock the bottom surface of the mold box to generate vibration to facilitate demolding; meanwhile, the cam head enters the notch to avoid excessive impact on the mold box when impacting the bottom surface of the mold box, the cam head is driven to reset through the elastic force of the spring when the cam head leaves the mold box, then the direct current motor is started to drive the screw rod to rotate, the connecting frame transversely moves through the sliding block, and the bottom surface of the mold box is comprehensively and uniformly knocked; the influence on the service life of the mold is avoided, the product quality and the production stability are improved, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to a press rear cover injection molding equipment. Background Art

[0002] Injection molding, also known as injection compression molding, is a molding method that combines injection and molding. A polymer composite material that has been heated and molten is quickly injected into a closed mold cavity at a certain pressure, and then cooled and solidified to obtain a molded product. The rear cover of the press is generally produced by injection molding.

[0003] Reference is made to a plastic injection molding device disclosed in a patent application with publication number CN221659991U. This utility model overcomes the shortcomings of the prior art. By setting a motor, an eccentric wheel and a horizontal plate, the motor drives multiple sets of eccentric wheels to rotate through the rotating shaft. During the rotation of the eccentric wheel, it continuously hits the bottom of the horizontal plate, generating vibration, which is transmitted to the molded plastic product by the horizontal plate, thereby helping the plastic product to more easily separate from the mold, thereby improving the convenience of demolding.

[0004] However, when the above technology is applied to the manufacturing of the rear cover of the press, multiple sets of eccentric wheels are used to hit the bottom of the horizontal plate to facilitate demolding. Most existing devices use this method of continuous knocking at the same position of the mold to generate vibration. In this way, the same position is subjected to continuous impact force, and the mold horizontal plate is easily subjected to excessive impact and wear. Over time, this continuous impact force will cause the life of the mold to be greatly reduced, thereby affecting the quality of the product and the stability of production, and its practicality is general. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a press rear cover injection molding device, which solves the problem that the existing injection molding equipment is easily subjected to excessive impact and wear when knocking on the same position of the mold. This continuous impact force will greatly reduce the life of the mold, thereby affecting the quality of the product and the stability of production, and the problem of general practicality.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A press rear cover injection molding device, comprising a workbench, a controller for controlling the operation of the device is fixedly installed on the left side of the top surface of the workbench, and further comprising:

[0007] A molding assembly is provided on the top surface of the workbench and is used for injection molding thermoplastic material to extrude and mold the press rear cover. The molding assembly includes a mold box fixedly mounted on the top surface of the workbench and used for containing the thermoplastic material.

[0008] A cooling assembly is provided on the outside of the workbench and is used to cool down the thermoplastic material in the mold box for molding;

[0009] The vibration component is arranged inside the workbench and is used to knock the bottom surface of the mold box to generate a vibration effect to facilitate demoulding. It can knock the bottom surface of the mold box comprehensively and evenly and avoid damaging the mold box.

[0010] Preferably, the vibration assembly includes a slot plate fixedly mounted on the left and right sides of the top surface of the inner cavity of the workbench, a slider is slidably mounted inside the slot plate, a connecting frame is fixedly mounted on the bottom surface of the slider, a screw is movably mounted inside the slot plate, a DC motor is fixedly mounted on the front side of the slot plate to drive the screw to rotate, a driving motor is fixedly mounted on the left side of the connecting frame, a shaft rod is movably mounted inside the connecting frame, and a number of cam blocks for knocking the bottom surface of the mold box are fixedly mounted on the outside of the shaft rod, and the bottom surfaces of the several cam blocks are provided with slots, and a cam head is movably mounted inside the slot to avoid damage to the mold box, and a spring is fixedly mounted on the top surface of the cam head to drive the cam head to reset, and the bottom surface of the mold box passes through the top surface of the workbench and extends to the inside of the workbench to facilitate the vibration assembly to knock the bottom surface of the mold box.

[0011] Preferably, the rear end thread of the screw rod passes through the front side of the slider and is movably mounted on the rear side of the inner cavity of the slot plate, the front end of the screw rod movably passes through the interior of the slot plate and is fixedly mounted on the output end of the DC motor to drive the screw rod to rotate and move the slider back and forth, the output end of the drive motor movably passes through the left side of the connecting frame and is fixedly mounted on the left end of the shaft rod and can drive the shaft rod to rotate, and the top end of the spring is fixedly mounted on the top surface of the inner cavity of the slot.

[0012] Preferably, the molding assembly also includes a mounting bracket fixedly mounted on the rear side of the top surface of the workbench, the top surface of the mounting bracket is fixedly mounted on the cylinder, the output end of the cylinder is fixedly mounted with an upper template for extruding thermoplastic material for molding, and a feed pipe is fixedly mounted on the right side of the top surface of the upper template for convenient pouring of thermoplastic material, and the output end of the cylinder movably passes through the top surface of the mounting bracket and is fixedly mounted on the top surface of the upper template for driving the upper template to rise and fall.

[0013] Preferably, the cooling assembly includes a liquid storage tank fixedly mounted on the right side of the workbench, a liquid adding pipe fixedly mounted on the front side of the top of the liquid storage tank for adding coolant to the interior of the liquid storage tank, a heat exchange pipe fixedly mounted inside the mold box for removing heat from the thermoplastic material to increase the molding speed, and a water pump fixedly mounted on the top surface of the liquid storage tank for controlling the connectivity between the heat exchange pipe and the liquid storage tank.

[0014] Preferably, one end of the heat exchange tube passes through the interior of the mold box and is connected to the output end of the water pump, the other end of the heat exchange tube passes through the interior of the mold box and is connected to the liquid storage tank, and the input end of the water pump is connected to the liquid storage tank through a connecting pipe.

[0015] The utility model provides a press rear cover injection molding device. Compared with the existing technology, it has the following advantages:

[0016] (1) The press rear cover injection molding equipment can knock the bottom surface of the mold box through the provided cam block and cam head to facilitate demolding. When in use, starting the driving motor can drive the shaft to rotate the cam block, and then the cam block will drive the cam head to rotate and knock the bottom surface of the mold box to generate vibration for easy demolding. At the same time, when the cam head hits the bottom surface of the mold box, it will enter the groove to avoid excessive impact on the mold box. When the cam head leaves the mold box, the elastic force of the spring will drive the cam head to reset, and then start the DC motor to drive the screw to rotate through the slider to move the connecting frame horizontally, and knock the bottom surface of the mold box comprehensively and evenly, so as to avoid affecting the life of the mold, improve the quality of the product and the stability of production, and have good practicality.

[0017] (2) The press rear cover injection molding equipment can improve the molding speed of the press rear cover by setting the heat exchange tube and the liquid storage tank. When in use, the coolant is poured into the interior of the liquid storage tank through the liquid filling tube, and then the water pump is started to pump the coolant in the liquid storage tank into the interior of the heat exchange tube. At this time, the coolant will take away the heat of the thermoplastic material in the mold box to increase the molding speed. Then, the coolant that takes away the heat will be poured into the interior of the liquid storage tank for subsequent cooling, which is convenient and fast, and improves the molding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional schematic diagram of the appearance of the utility model;

[0019] Figure 2 This is a front sectional three-dimensional appearance schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the three-dimensional appearance of the molding component of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional appearance of the vibration component of the present invention;

[0022] Figure 5 This is a schematic diagram of the cross-sectional three-dimensional appearance of the vibration component of the present invention.

[0023] In the figure: 1-workbench, 21-molding assembly, 211-cylinder, 212-mounting frame, 213-upper template, 214-feeding pipe, 215-mold box, 22-cooling assembly, 221-heat exchange tube, 222-water pump, 223-liquid storage tank, 224-liquid adding pipe, 23-vibration assembly, 231-drive motor, 232-connecting frame, 233-shaft rod, 234-cam block, 235-cam head, 236-slot plate, 237-slider, 238-screw, 239-DC motor, 2310-notch, 2311-spring, 3-controller. DETAILED DESCRIPTION

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

[0025] See Figure 1-Figure 5 , this utility model provides two technical solutions:

[0026] First embodiment: A press rear cover injection molding device, comprising a workbench 1, a controller 3 for controlling the operation of the device is fixedly mounted on the left side of the top surface of the workbench 1, and further comprising:

[0027] The molding assembly 21 is arranged on the top surface of the workbench 1 and is used for injection molding thermoplastic material to extrude and mold the press rear cover. The molding assembly 21 includes a mold box 215 fixedly mounted on the top surface of the workbench 1 and used to hold the thermoplastic material;

[0028] The cooling assembly 22 is provided on the outside of the workbench 1 and is used to cool down the thermoplastic material in the mold box 215 for molding;

[0029] The vibration component 23 is arranged inside the workbench 1 and is used to knock the bottom surface of the mold box 215 to generate a vibration effect to facilitate demoulding. It can knock the bottom surface of the mold box 215 comprehensively and evenly and avoid damaging the mold box 215. The vibration component 23 includes a groove plate 236 fixedly mounted on the left and right sides of the top surface of the inner cavity of the workbench 1, and a slider 237 is slidably mounted inside the groove plate 236. The bottom surface of the slider 237 is fixedly mounted with a connecting frame 232. The interior of the groove plate 236 is movably mounted with a screw 238. The groove plate 236 is A DC motor 239 is fixedly installed on the front side to drive the screw 238 to rotate. A driving motor 231 is fixedly installed on the left side of the connecting frame 232. A shaft 233 is movably installed inside the connecting frame 232. A plurality of cam blocks 234 for knocking the bottom surface of the mold box 215 are fixedly installed on the outside of the shaft 233. The plurality of cam blocks 234 are linearly and evenly distributed on the outside of the shaft 233. The bottom surfaces of the plurality of cam blocks 234 are all provided with notches 2310. Cam heads 235 are movably installed inside the notches 2310 for To avoid damage to the mold box 215, a spring 2311 is fixedly installed on the top surface of the cam head 235 to drive the cam head 235 to reset. The bottom surface of the mold box 215 passes through the top surface of the workbench 1 and extends to the inside of the workbench 1 to facilitate the vibration component 23 to knock on the bottom surface of the mold box 215. The rear end thread of the screw 238 passes through the front side of the slider 237 and is movably installed on the rear side of the inner cavity of the slot plate 236. The front end of the screw 238 movably passes through the interior of the slot plate 236 and is fixedly installed at the output end of the DC motor 239 for The screw 238 is driven to rotate to move the slider 237 back and forth, and the DC motor 239 is started to drive the screw 238 to rotate to move the slider 237 laterally to prevent several cam blocks 234 from hitting the same place. The output end of the drive motor 231 is movable through the left side of the connecting frame 232 and is fixedly installed on the left end of the shaft 233 and can drive the shaft 233 to rotate. The top end of the spring 2311 is fixedly installed on the top surface of the inner cavity of the slot 2310, and the elastic force of the slot 2310 can drive the cam head 235 to reset.

[0030] The cam block 234 and cam head 235 provided can knock the bottom surface of the mold box 215 for easy demoulding. When in use, starting the driving motor 231 can drive the shaft 233 to rotate the cam block 234, and then the cam block 234 will drive the cam head 235 to rotate and knock the bottom surface of the mold box 215 to generate vibration for easy demoulding. At the same time, when the cam head 235 hits the bottom surface of the mold box 215, it will enter the notch 2310 to avoid excessive impact on the mold box 215. When the cam head 235 leaves the mold box 215, the elastic force of the spring 2311 will drive the cam head 235 to reset. Then starting the DC motor 239 drives the screw 238 to rotate through the slider 237 to move the connecting frame 232 horizontally, and the bottom surface of the mold box 215 is comprehensively and evenly knocked, thereby avoiding affecting the life of the mold, improving the quality of the product and the stability of production, and having good practicality.

[0031] The second embodiment is mainly different from the first embodiment in that: the molding component 21 also includes a mounting frame 212 fixedly mounted on the rear side of the top surface of the workbench 1, the top surface of the mounting frame 212 is fixedly mounted on the cylinder 211, the output end of the cylinder 211 is fixedly mounted with an upper template 213 for extruding thermoplastic material for molding, and a feed pipe 214 is fixedly mounted on the right side of the top surface of the upper template 213 for convenient injection of thermoplastic material, the output end of the cylinder 211 movably passes through the top surface of the mounting frame 212 and is fixedly mounted on the top surface of the upper template 213 for driving the upper template 213 to rise and fall, and starting the cylinder 211 can drive the upper template 213 to descend into the interior of the mold box 215 for facilitating the extrusion molding of the thermoplastic material, the cooling component 22 includes a liquid storage tank 223 fixedly mounted on the right side of the workbench 1, and a refrigeration device is provided inside the liquid storage tank 223 for refrigerating cooling water, and the refrigeration device is a conventional cooling fan, which is a prior art , without going into details, a liquid adding pipe 224 is fixedly installed on the front side of the top of the liquid storage tank 223 to facilitate adding coolant to the interior of the liquid storage tank 223, and a heat exchange pipe 221 is fixedly installed inside the mold box 215 to remove the heat of the thermoplastic material and increase the molding speed, and the heat exchange pipe 221 is distributed in an S shape around the interior of the mold box 215, and a water pump 222 is fixedly installed on the top surface of the liquid storage tank 223 to control the communication state between the heat exchange pipe 221 and the liquid storage tank 223. One end of the heat exchange pipe 221 passes through the interior of the mold box 215 and is connected to the output end of the water pump 222, and the other end of the heat exchange pipe 221 passes through the interior of the mold box 215 and is connected to the liquid storage tank 223. The input end of the water pump 222 is connected to the liquid storage tank 223 through a connecting pipe, and starting the water pump 222 can pump the coolant in the liquid storage tank 223 into the interior of the heat exchange pipe 221 to remove the heat of the thermoplastic material in the mold box 215 to increase the molding speed and then fill it into the interior of the liquid storage tank 223.

[0032] The heat exchange tube 221 and the liquid storage tank 223 are provided to increase the molding speed of the rear cover of the press. When in use, the coolant is poured into the interior of the liquid storage tank 223 through the liquid filling tube 224, and then the water pump 222 is started to pump the coolant in the liquid storage tank 223 into the interior of the heat exchange tube 221. At this time, the coolant will take away the heat of the thermoplastic material in the mold box 215 to increase the molding speed. Then, the coolant that has taken away the heat will be poured into the interior of the liquid storage tank 223 for subsequent cooling, which is convenient and fast, and improves the molding efficiency.

[0033] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0034] During use, the user starts the cylinder 211 to drive the upper template 213 to descend into the mold box 215, and then pours the thermoplastic material between the upper template 213 and the mold box 215 through the feeding pipe 214, and then pours the coolant into the interior of the liquid storage tank 223 through the liquid filling pipe 224, and then starts the water pump 222 to pump the coolant in the liquid storage tank 223 into the interior of the heat exchange tube 221. At this time, the coolant will take away the heat of the thermoplastic material in the mold box 215 to increase the molding speed, and then the coolant that takes away the heat will be poured into the interior of the liquid storage tank 223 for subsequent cooling. After molding, the cylinder 211 is started again to drive the upper template 213 to reset, and then the drive motor 231 is started. The shaft 233 can be driven to rotate the cam block 234, and then the cam block 234 will drive the cam head 235 to rotate and knock the bottom surface of the mold box 215 to generate vibration for easy demoulding. At the same time, when the cam head 235 hits the bottom surface of the mold box 215, it will enter the slot 2310 to avoid excessive impact on the mold box 215. When the cam head 235 leaves the mold box 215, the elastic force of the spring 2311 will drive the cam head 235 to reset, and then start the DC motor 239 to drive the screw 238 to rotate through the slider 237 to move the connecting frame 232 horizontally, and knock the bottom surface of the mold box 215 comprehensively and evenly to facilitate the removal of the formed press back cover from the interior of the mold box 215.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include" or "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A press rear cover injection molding device, comprising a workbench (1), characterized in that: A controller (3) for controlling the operation of the device is fixedly mounted on the left side of the top surface of the workbench (1), and further comprises: A molding assembly (21) is arranged on the top surface of the workbench (1) and is used for injection molding a thermoplastic material to extrude and mold a press rear cover. The molding assembly (21) includes a mold box (215) fixedly mounted on the top surface of the workbench (1) and used for containing the thermoplastic material. A cooling assembly (22) is arranged outside the workbench (1) and is used to cool down the thermoplastic material in the mold box (215) for molding; The vibration assembly (23) is arranged inside the workbench (1) and is used to knock the bottom surface of the mold box (215) to generate a vibration effect to facilitate demoulding. The vibration assembly (23) can knock the bottom surface of the mold box (215) comprehensively and evenly and avoid damaging the mold box (215).

2. The press rear cover injection molding equipment according to claim 1, characterized in that: The vibration assembly (23) includes a slot plate (236) fixedly mounted on the left and right sides of the top surface of the inner cavity of the workbench (1); a slider (237) is slidably mounted inside the slot plate (236); a connecting frame (232) is fixedly mounted on the bottom surface of the slider (237); a screw rod (238) is movably mounted inside the slot plate (236); a DC motor (239) is fixedly mounted on the front side of the slot plate (236) to drive the screw rod (238) to rotate; a driving motor (231) is fixedly mounted on the left side of the connecting frame (232); a shaft rod (233) is movably mounted inside the connecting frame (232); Several cam blocks (234) for knocking the bottom surface of the mold box (215) are fixedly installed on the outer side of (233), and the bottom surfaces of several of the cam blocks (234) are all provided with notches (2310). A cam head (235) is movably installed inside the notch (2310) to avoid damage to the mold box (215). A spring (2311) is fixedly installed on the top surface of the cam head (235) to drive the cam head (235) to reset. The bottom surface of the mold box (215) passes through the top surface of the workbench (1) and extends to the inside of the workbench (1) to facilitate the vibration component (23) to knock the bottom surface of the mold box (215).

3. The press rear cover injection molding equipment according to claim 2, characterized in that: The rear end thread of the screw rod (238) passes through the front side of the slider (237) and is movably mounted on the rear side of the inner cavity of the slot plate (236). The front end of the screw rod (238) movably passes through the interior of the slot plate (236) and is fixedly mounted on the output end of the DC motor (239) to drive the screw rod (238) to rotate and move the slider (237) back and forth. The output end of the drive motor (231) movably passes through the left side of the connecting frame (232) and is fixedly mounted on the left end of the shaft rod (233) and can drive the shaft rod (233) to rotate. The top end of the spring (2311) is fixedly mounted on the top surface of the inner cavity of the slot (2310).

4. The press rear cover injection molding equipment according to claim 1, characterized in that: The molding assembly (21) further comprises a mounting frame (212) fixedly mounted on the rear side of the top surface of the workbench (1); the top surface of the mounting frame (212) is fixedly mounted on the cylinder (211); an upper template (213) is fixedly mounted on the output end of the cylinder (211) for extruding thermoplastic material for molding; a feed pipe (214) is fixedly mounted on the right side of the top surface of the upper template (213) for conveniently pouring thermoplastic material; the output end of the cylinder (211) movably passes through the top surface of the mounting frame (212) and is fixedly mounted on the top surface of the upper template (213) for driving the upper template (213) to rise and fall.

5. The press rear cover injection molding equipment according to claim 1, characterized in that: The cooling assembly (22) includes a liquid storage box (223) fixedly mounted on the right side of the workbench (1); a liquid adding pipe (224) is fixedly mounted on the front side of the top of the liquid storage box (223) for conveniently adding coolant to the interior of the liquid storage box (223); a heat exchange pipe (221) is fixedly mounted inside the mold box (215) for removing heat from the thermoplastic material to increase the molding speed; a water pump (222) is fixedly mounted on the top surface of the liquid storage box (223) for controlling the communication state between the heat exchange pipe (221) and the liquid storage box (223).

6. The press rear cover injection molding device according to claim 5, characterized in that: One end of the heat exchange tube (221) passes through the interior of the mold box (215) and is connected to the output end of the water pump (222); the other end of the heat exchange tube (221) passes through the interior of the mold box (215) and is connected to the liquid storage tank (223); the input end of the water pump (222) is connected to the liquid storage tank (223) via a connecting pipe.

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