Device for demoulding injection product of injection molding machine

Abstract

The invention relates to the technical field of injection molding demolding, and discloses an injection molding machine injection product demolding device which comprises a bottom plate, a frame is installed at the top of the bottom plate, material injection equipment is installed at the top of the frame, a material injection pipe is installed in the material injection equipment, and a fixing plate is installed at the top of the frame. A first mold is installed on the side, away from the material injection pipe, of the fixing plate. By arranging the vibration mechanism, the vibration force can be transmitted to the first mold, the vibration force is transmitted to the melt through the cavity wall of the first mold, the melt viscosity is reduced, the fluidity of the melt is improved, vibration can help the melt in the first mold to more smoothly fill all corners of a cavity, the defects of material shortage, bubbles and the like are reduced, and during demolding, slight vibration is transmitted to the first mold, so that the product quality is improved. A tiny gap can be generated between the product and the inner cavity wall of the first mold, the adhesive force of a contact surface is reduced, demolding is smoother, mechanical damage of demolding force to the product is reduced, and production continuity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to injection molding demolding technical field, especially to a kind of injection molding machine injection molding product demolding device. BACKGROUND

[0002] The injection molding machine injection molding product demolding device is an important component of injection molding machine, which functions to smoothly push the product out of the mold after injection molding.

[0003] In the existing injection molding process, the demolding link relies on the push pin to apply a pushing force from the bottom of the product to complete the part taking, but the direct contact and force of the push pin with the bottom of the product can easily leave obvious indentation or needle-shaped marks on the contact surface, which not only destroys the appearance integrity of the product, but also may cause slight damage to the bottom structure, especially for high-requirement appearance or thin-walled products, which will directly affect their quality and qualification rate, therefore, the present application provides a kind of injection molding machine injection molding product demolding device. SUMMARY

[0004] The present application provides a kind of injection molding machine injection molding product demolding device, by setting vibration mechanism can be transmitted to the mold one power of vibration, vibration power is transmitted to the melt through the cavity wall of mold one, reduces the melt viscosity, improves its fluidity, vibration can help the melt in mold one more smoothly fill each corner of the cavity, reduce defects such as material shortage, bubble, and in demolding by transmitting slight vibration to mold one, a small gap can be generated between the product and the internal cavity wall of mold one, reduce the adhesion of contact surface, make demolding more smoothly, reduce the mechanical damage of demolding force to product, improve production continuity.

[0005] In order to solve the above technical problems, the present application solves the problem that in the existing injection molding process, the demolding link relies on the push pin to apply a pushing force from the bottom of the product to complete the part taking, and the direct contact and force of the push pin with the bottom of the product can easily leave obvious indentation or needle-shaped marks on the contact surface.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: The utility model provides an injection molding machine injection molding product demoulding device, including: the top of bottom plate is installed with frame, the top of frame is installed with injection equipment, the inside of injection equipment is installed with injection pipe, the top of frame is installed with fixed plate, the side away from injection pipe of fixed plate is installed with mould no.

[0007] As a preferred technical scheme of the present application, the protection assembly includes a storage bin, the storage bin is opened in the inner wall of the frame, the inner bottom of the storage bin is provided with an air bag cushion, the top of the air bag cushion is symmetrically connected with a side air bag, the top of the air bag cushion is provided with a plurality of air outlets, one end of a connecting pipe is fixedly connected to the outer side of the air bag cushion, and the other end of the connecting pipe is fixedly connected to the output end of an air pump, and the air pump is fixed to the outside of the frame.

[0008] As a preferred technical scheme of the present application, the top of the bottom plate is slidably connected with a moving plate, the top of the moving plate is provided with a mechanical arm, the outer side of the bottom plate is provided with a servo motor, the output shaft of the servo motor is fixedly connected with a lead screw, the lead screw is threadedly connected with the moving plate, the top of the bottom plate is provided with a guide shaft, and the guide shaft is slidably connected with the moving plate.

[0009] As a preferred technical scheme of the present application, the top of the bottom plate is provided with a positioning plate, the outer side of the positioning plate is provided with an air cylinder, the output shaft of the air cylinder is fixed to one end of a push rod, and the other end of the push rod is fixedly connected with the mould no.

[0010] As a preferred technical scheme of the present application, the inner wall of the plane plate is slidably connected with a guide rod, and the guide rod is fixedly connected with the mould no.

[0011] As a preferred technical scheme of the present application, the blowing assembly comprises a fan fixed to the outer side of the winding wheel, a vertical rod is installed on the top of the mold one, a gas guide pipe is fixed to the top of the vertical rod, one end of the gas guide pipe abuts against the outer wall of the winding wheel, the other end of the gas guide pipe communicates with the inner wall of the mold one, and a plurality of refrigeration fins are installed on the inner wall of the gas guide pipe.

[0012] As a preferred technical scheme of the present application, the top of the mold two is also provided with a vibration mechanism, the air nozzle is arranged at the intermediate position between the mold one and the mold two, and the inner wall of the air nozzle is provided with an electromagnetic valve.

[0013] As a preferred technical scheme of the present application, a circular hole is formed in the middle of the positioning cover, and the pull rod is slidingly connected to the inner wall of the circular hole.

[0014] As a preferred technical scheme of the present application, a plurality of air holes are formed in the outer side of the mold one, the air holes, the gas guide pipe and the inner wall of the mold one communicate with each other, and the inner wall of the air hole is provided with a control valve.

[0015] As a preferred technical scheme of the present application, the knocking ball is made of rubber.

[0016] Compared with the prior art, the present application has the following beneficial effects: The device for demolding the injection-molded product of the injection molding machine can transmit vibration force to the mold one through the vibration mechanism, the vibration force is transmitted to the melt through the cavity wall of the mold one, the viscosity of the melt is reduced, the flowability of the melt is improved, the melt in the mold one can be filled more smoothly to each corner of the cavity, the defects such as material shortage and air bubbles are reduced, and when demolding, slight vibration is transmitted to the mold one, a small gap is generated between the product and the cavity wall in the mold one, the adhesion of the contact surface is reduced, the demolding is more smooth, the mechanical damage of the demolding force to the product is reduced, and the production continuity is improved.

[0017] The device for demolding the injection-molded product of the injection molding machine can make the product processed by the mold one and the mold two directly fall to the top of the air bag pad, ensure that the injection-molded product will not directly collide with a hard object, and the driving air pump can convey the gas to the inside of the air bag pad through the connecting pipe, which can be used to inflate the air bag pad, and the product surface can be blown by the gas discharged through the air nozzle, so that the product can be quickly solidified. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical schemes in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the side view structure of the present application; Figure 3 is a schematic diagram of the protective assembly structure of the present application; Figure 4 is a schematic diagram of the front view plane structure of the present application; Figure 5 is a schematic diagram of the structure of mold one and mold two of the present application; Figure 6 is a schematic diagram of the sectional structure of the positioning cover of the present application; Figure 7 is a schematic diagram of the sectional structure of the air guide pipe of the present application; Figure 8 is a schematic diagram of the unfolding structure of the present application.

[0020] In the figure: 1, bottom plate; 2, frame; 3, moving plate; 4, mechanical arm; 5, servo motor; 6, lead screw; 7, guide shaft; 8, injection equipment; 9, injection pipe; 10, fixed plate; 11, mold one; 12, mold two; 13, air cylinder; 14, push rod; 15, plane plate; 16, return spring; 17, guide rod; 18, air hole; 19, positioning plate; 20, positioning cover; 21, knocking ball; 22, reset spring; 23, pull rod; 24, connecting frame; 25, pull rope; 26, connecting buckle; 27, mounting plate; 28, rotary motor; 29, winding wheel; 30, fan; 31, air guide pipe; 32, refrigeration sheet; 33, vertical rod; 34, storage bin; 35, air bag cushion; 36, side air bag; 37, air nozzle; 38, connecting pipe; 39, air pump. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below with reference to the accompanying drawings.

[0022] The following description is provided to enable those skilled in the art to practice the present application. The preferred embodiments described below are only examples of the present application and other obvious modifications are possible. The basic principles defined in the following description can be applied to other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0023] Those skilled in the art should understand that in the disclosure of the present application, the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or position based on the orientation or position relationship shown in the drawings, which is only for the convenience of the simplified description of the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0024] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0025] Please refer to Figures 1-8The utility model provides an injection molding machine injection product demoulding device, including: the bottom plate 1, the top of bottom plate 1 is equipped with frame 2, the top of frame 2 is equipped with injection equipment 8, the inside of injection equipment 8 is equipped with injection tube 9, the top of frame 2 is equipped with fixed plate 10, and the side away from injection tube 9 of fixed plate 10 is equipped with mould one 11, and the side of mould one 11 is equipped with mould two 12, and the end away from injection equipment 8 of injection tube 9 is inserted in the inner wall of fixed plate 10, still including: the protection assembly of being installed in the inside of frame 2, the protection assembly is used to connect the product of injection molding, and the top of mould one 11 is equipped with vibration mechanism, and vibration mechanism includes positioning cover 20, and positioning cover 20 is fixed to the top of mould one 11, and the inner wall of positioning cover 20 is slidably connected with knock ball 21, and one end of reset spring 22 is fixedly connected with the top of knock ball 21, and the other end of reset spring 22 is fixedly connected with the inner top of positioning cover 20, and one end of pull rod 23 is fixedly connected with the top of knock ball 21, and the other end of pull rod 23 is fixedly connected with connecting frame 24, and the top of mould one 11 is equipped with mounting plate 27, and the outside of mounting plate 27 is fixed with rotary motor 28, and the output shaft of rotary motor 28 is fixedly connected with winding wheel 29, and one end of pull rope 25 is woundly connected with the inner wall of winding wheel 29, and the other end of pull rope 25 is fixedly connected with connecting buckle 26, and connecting buckle 26 is connected with connecting frame 24, and the side of winding wheel 29 is equipped with blowing assembly, so that can drive rotary motor 28 to drive winding wheel 29 to rotate and wind pull rope 25 to the inner wall of winding wheel 29, then pull rod 23 is pulled to drive knock ball 21 to move upwards on the inner wall of positioning cover 20, then reset spring 22 can be extruded, and it generates deformation, then can drive rotary motor 28 to drive winding wheel 29 to reverse rotation, then the elasticity recovery force of reset spring 22 can be used to impact the top of mould one 11, then the vibration power of mould one 11 can be transmitted, so that the melt filling of impact energy transmission is optimized when injection molding, the product quality is improved, and the forming efficiency is improved, the vibration power is transmitted to the melt through the cavity wall of mould one 11, the molecular chain entanglement in the melt can be broken, the melt viscosity is reduced, and the flowability is improved, the melt in the mould one 11 can be filled in each corner of the cavity more smoothly, the defects such as material shortage and bubble are reduced, and when demoulding, slight vibration is transmitted to mould one 11, a small gap can be formed between the product and the cavity wall in mould one 11, the adhesion of the contact surface is reduced, demoulding is more smooth, mechanical damage to the product by demoulding force is reduced, and production continuity is improved.

[0026] Refer to Figure 3As shown: the protection assembly includes a storage bin 34, the storage bin 34 is opened in the inner wall of the frame 2, the inner bottom of the storage bin 34 is provided with an air bag pad 35, the top of the air bag pad 35 is symmetrically connected with a side air bag 36, the top of the air bag pad 35 is provided with a plurality of air outlets 37, one end of a connecting pipe 38 is fixedly connected with the outer side of the air bag pad 35, and the other end of the connecting pipe 38 is fixedly connected with the output end of the air pump 39, the air pump 39 is fixed to the outside of the frame 2, so that the products processed by the mold one 11 and the mold two 12 can directly fall on the top of the air bag pad 35, so that the products of injection molding cannot directly collide with the hard objects, and the operation of the air pump 39 can be driven to be transported to the inside of the air bag pad 35 through the connecting pipe 38, which can be used for inflating the air bag pad 35, and the air outlet 37 can be used for blowing the surface of the product to make it quickly solidify.

[0027] Referring to Figure 1 As shown: the top of the bottom plate 1 is slidably connected with a moving plate 3, the top of the moving plate 3 is provided with a mechanical arm 4, the outer side of the bottom plate 1 is provided with a servo motor 5, the output shaft of the servo motor 5 is fixedly connected with a lead screw 6, the lead screw 6 is threadedly connected with the moving plate 3, the top of the bottom plate 1 is provided with a guide shaft 7, the guide shaft 7 is slidably connected with the moving plate 3, so that the servo motor 5 can be driven to rotate the lead screw 6, and then the moving plate 3 can be driven to move on the top of the bottom plate 1, so as to adjust the position of the mechanical arm 4, so that the mechanical arm 4 can be used to grab the injection part, and the guide shaft 7 can be used to limit the moving moving plate 3, so as to prevent it from easily deviating during movement.

[0028] Referring to Figure 3 And Figure 4 As shown: the top of the bottom plate 1 is provided with a positioning plate 19, the outer side of the positioning plate 19 is provided with a pneumatic cylinder 13, the output shaft of the pneumatic cylinder 13 is fixed to one end of a push rod 14, the other end of the push rod 14 is fixedly connected with the mold two 12, the top of the frame 2 is provided with a plane plate 15, the outer side of the push rod 14 is sleeved with a return spring 16, one end of the return spring 16 is fixedly connected with the outer side of the plane plate 15, and the other end of the return spring 16 is fixedly connected with the outside of the mold two 12, so that the pneumatic cylinder 13 can be driven to push the push rod 14 to drive the mold two 12 to move, until the mold two 12 is attached to the mold one 11, and then the mold one 11 and the mold two 12 form a cavity for injection molding products.

[0029] The inner wall of the plane plate 15 is slidably connected with a guide rod 17, and the guide rod 17 is fixedly connected with the mold two 12, so as to limit the movement of the mold two 12 during movement, so as to ensure that it can move stably and parallelly.

[0030] Referring to Figure 5 - Figure 7As shown: the blowing assembly includes a fan 30 fixed to the outside of the winding wheel 29, the top of the mold one 11 is provided with a vertical rod 33, the top of the vertical rod 33 is fixed with a gas guide pipe 31, one end of the gas guide pipe 31 abuts against the outer wall of the winding wheel 29, the other end of the gas guide pipe 31 communicates with the inner wall of the mold one 11, a plurality of refrigeration fins 32 are installed on the inner wall of the gas guide pipe 31, so that the winding wheel 29 can drive the fan 30 to rotate synchronously when rotating, thereby generating wind power, which can further enter the inside of the mold one 11 through the gas guide pipe 31 to realize preliminary cooling of the mold one 11, effectively improving the cooling efficiency of the thermoplastic product initially entering the inside of the mold one 11, and driving the refrigeration fin 32 to work after injection molding, converting the gas into cold air, further accelerating the cooling efficiency and improving the demolding efficiency.

[0031] Referring to Figure 4 and Figure 6 As shown: the top of the mold two 12 is also provided with a vibration mechanism, the air nozzle 37 is arranged at the intermediate position of the mold one 11 and the mold two 12, the inner wall of the air nozzle 37 is provided with an electromagnetic valve, so that the vibration mechanism can transmit vibration force to the mold two 12 when working, and the gas discharged from the air nozzle 37 can be precisely blown to the middle position of the mold one 11 and the mold two 12 to accelerate the cooling efficiency of the product and ensure rapid demolding.

[0032] Referring to Figure 6 As shown: the middle of the positioning cover 20 is provided with a circular hole, and the pull rod 23 is slidingly connected to the inner wall of the circular hole, so that the pull rod 23 can move up and down without interfering with the positioning cover 20.

[0033] Referring to Figure 3 and Figure 4 As shown: a plurality of air holes 18 are formed on the outside of the mold one 11, the air holes 18, the gas guide pipe 31 and the inner wall of the mold one 11 communicate, and the control valve is installed on the inner wall of the air hole 18, so that the gas discharged from the gas guide pipe 31 into the inside of the mold one 11 can be discharged to the outside through the air hole 18 to realize heat transfer.

[0034] Referring to Figure 6 As shown: the knocking ball 21 is made of rubber material, so that the vibration impact of the knocking ball 21 on the surface of the mold one 11 will not damage the surface of the mold one 11.

[0035] Those skilled in the art should understand that the embodiments of the present application described above and shown in the drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principle of the present application have been shown and described in the embodiments, and the embodiments of the present application can be modified or changed without departing from the principle.

Claims

1. A device for demolding injection-molded products of an injection molding machine, comprising: a base plate (1), a frame (2) is mounted on the top of the base plate (1), an injection device (8) is mounted on the top of the frame (2), an injection tube (9) is mounted in the injection device (8), a fixed plate (10) is mounted on the top of the frame (2), a mold one (11) is mounted on the side of the fixed plate (10) away from the injection tube (9), a mold two (12) is mounted on the side of the mold one (11), and the end of the injection tube (9) away from the injection device (8) is inserted into the inner wall of the fixed plate (10); characterized in that it further comprises: a protection assembly mounted in the frame (2), which is used for connecting the products after injection molding, and a vibration mechanism is mounted on the top of the mold one (11). The vibration mechanism comprises a positioning cover (20) fixed to the top of the mold one (11), a knocking ball (21) slidably connected to the inner wall of the positioning cover (20), one end of a return spring (22) fixedly connected to the top of the knocking ball (21), the other end of the return spring (22) fixedly connected to the inner top of the positioning cover (20), one end of a pull rod (23) fixedly connected to the top of the knocking ball (21), the other end of the pull rod (23) fixedly connected to a connecting frame (24), an installation plate (27) mounted on the top of the mold one (11), a rotary motor (28) fixed to the outer side of the installation plate (27), a winding wheel (29) fixedly connected to the output shaft of the rotary motor (28), one end of a pull rope (25) woundly connected to the inner wall of the winding wheel (29), the other end of the pull rope (25) fixedly connected to a connecting buckle (26), the connecting buckle (26) connected to the connecting frame (24), and a blowing assembly mounted on one side of the winding wheel (29).

2. A device for ejecting an injection molded product from an injection molding machine according to claim 1, characterized in that: The protection assembly comprises a storage bin (34) opened in the inner wall of the frame (2), an air bag pad (35) mounted on the inner bottom of the storage bin (34), a plurality of side air bags (36) symmetrically and communicatively mounted on the top of the air bag pad (35), a plurality of air nozzles (37) mounted on the top of the air bag pad (35), one end of a connecting pipe (38) fixedly connected to the outer side of the air bag pad (35), the other end of the connecting pipe (38) fixedly connected to the output end of an air pump (39), and the air pump (39) fixed to the outside of the frame (2).

3. The apparatus for demolding an injection molded product of an injection molding machine according to claim 1, characterized in that: The top of the base plate (1) is slidably connected to a moving plate (3), the top of the moving plate (3) is mounted with a mechanical arm (4), the outer side of the base plate (1) is mounted with a servo motor (5), the output shaft of the servo motor (5) is fixedly connected with a lead screw (6), the lead screw (6) is threadedly connected with the moving plate (3), the top of the base plate (1) is mounted with a guide shaft (7), and the guide shaft (7) is slidably connected with the moving plate (3).

4. The apparatus for demolding an injection molded product of an injection molding machine according to claim 1, characterized in that: The top of the bottom plate (1) is provided with a positioning plate (19), the outer side of the positioning plate (19) is provided with a pneumatic cylinder (13), the output shaft of the pneumatic cylinder (13) is fixed to one end of a push rod (14), the other end of the push rod (14) is fixedly connected with a mold two (12), the top of the frame (2) is provided with a plane plate (15), the outer edge of the push rod (14) is sleeved with a return spring (16), one end of the return spring (16) is fixedly connected with the outer side of the plane plate (15), the other end of the return spring (16) is fixedly connected with the outer side of the mold two (12).

5. The apparatus of claim 4 wherein: the ejector rod is a hollow rod having a plurality of openings therein; and the ejector rod is connected to the ejector rod actuator by a hollow rod connector. The inner wall of the plane plate (15) is slidably connected with a guide rod (17), and the guide rod (17) is fixedly connected with the mold two (12).

6. The apparatus for demolding an injection molded product of an injection molding machine according to claim 1, characterized in that: The blowing assembly comprises a fan (30), the fan (30) is fixed to the outer side of a winding wheel (29), the top of the mold one (11) is provided with a vertical rod (33), the top of the vertical rod (33) is fixedly provided with an air duct (31), one end of the air duct (31) abuts against the outer wall of the winding wheel (29), the other end of the air duct (31) is communicated with the inner wall of the mold one (11), and the inner wall of the air duct (31) is provided with a plurality of refrigeration fins (32).

7. The apparatus for demolding an injection molded product of an injection molding machine according to claim 2, characterized by: The top of the mold two (12) is also provided with a vibrating mechanism, the air nozzle (37) is arranged at the intermediate position between the mold one (11) and the mold two (12), and the inner wall of the air nozzle (37) is provided with an electromagnetic valve.

8. The apparatus for demolding an injection molded product of an injection molding machine according to claim 1, characterized in that: The middle part of the positioning cover (20) is provided with a circular hole, and the pull rod (23) is slidably connected with the inner wall of the circular hole.

9. The apparatus for demolding an injection molded product of an injection molding machine according to claim 1, wherein: The outer side of the mold one (11) is provided with a plurality of air holes (18), the air holes (18), the air duct (31) and the inner wall of the mold one (11) are communicated, and the inner wall of the air hole (18) is provided with a control valve.

10. The apparatus for demolding an injection molded product of an injection molding machine according to claim 1, characterized in that: The knocking ball (21) is made of rubber.

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