Stripping assembly for injection molding machine

Abstract

The utility model discloses a stripping assembly for an injection molding machine, which relates to the technical field of injection molding machines, and comprises a mounting rack, a plurality of threaded mounting holes are formed in the mounting rack, a lower bracket is fixedly mounted on the mounting rack, the lower bracket is positioned at the lower end of the mounting rack, two symmetrically distributed side templates are arranged in the mounting rack, and the mounting rack penetrates through the two side templates. According to the stripping assembly for the injection molding machine, air is injected into the guide pipes through the pressure pump and then enters the sleeves on the two sides through the guide pipes, the air pressure in the sleeves is increased, the movable rods are pushed to move upwards, the movable rods, the side frames and the connecting rods move synchronously, the connecting rods drive the upper mold plate to move upwards, and the upper mold plate is driven to move upwards. And the upper template can be quickly separated from the workpiece. And meanwhile, the electric push rods on the two sides drive the side mold plates on the two sides to be synchronously separated, and the side mold plates and the upper mold plate can be rapidly separated from the workpiece. And the demolding time can be remarkably shortened through rapid separation.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine technical field especially relates to a material ejection subassembly for injection molding machine. BACKGROUND

[0002] Injection molding is a method of producing industrial products, and the products are usually made of rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die pressing method and die casting method, and injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment for making various shapes of plastic products by using thermoplastic or thermosetting material.

[0003] For example, the existing public number CN216032098U discloses a kind of injection molding machine injection molding mold material ejection mechanism, specifically discloses including mould frame, the inside sliding connection of mould frame has lifting plate, the four corners of lifting plate top surface are all fixedly connected with connecting rod, the top surface of mould frame is provided with upper mould, the top surface of upper mould is provided with injection hole, the inside fixed connection of injection hole has injection nozzle, the top surface of lifting plate is fixedly connected with the fixed sleeve of inside hollow, the top surface of fixed sleeve is provided with sliding groove, the top surface of mould frame is slidingly connected with mould, the inside of mould frame is provided with knocking device. The utility model discloses through the setting of knocking device, impact ball is impacted to mould, so that mould is vibrated, since moving frame reciprocating motion, so that impact ball repeatedly impacts mould, so that mould repeatedly vibrates, and air bubble in injection material can be eliminated using vibration.

[0004] The existing injection molding machine material ejection assembly cannot quickly separate the molds, which can cause the injection molding cycle to be prolonged, because the opening and closing of the mold is a key step in the injection molding process. Low demolding efficiency can reduce overall production efficiency. Therefore, we propose a material ejection assembly for injection molding machine. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a material ejection assembly for injection molding machine, which solves the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a material ejection assembly for injection molding machine, comprising: a mounting frame, a plurality of threaded mounting holes are formed in the mounting frame, a lower support is fixedly installed on the mounting frame, the lower support is located at the lower end of the mounting frame, two symmetrically distributed side mold plates are arranged in the mounting frame, and the mounting frame penetrates the two side mold plates.

[0007] The upper end between the two side mold plates is provided with an upper mold plate, a feeding pipe is fixedly installed on the upper mold plate, connecting rods are fixedly installed at both ends of the upper mold plate, the lower ends of the connecting rods penetrate through the lower support, a lower mold is arranged at the lower end between the two side mold plates, a connecting seat is fixedly installed at the bottom of the lower mold, the lower end of the connecting seat is fixedly installed on the lower support, electric push rods are fixedly installed on both sides in the mounting bracket, the output ends of the electric push rods are fixedly connected to the side mold plates, side frames are fixedly installed on the connecting rods, sleeve pipes are fixedly installed at both ends of the lower support, movable rods are slidably arranged in the sleeve pipes, the upper ends of the movable rods are fixedly connected to the side frames, a pressurizing pump is fixedly installed on the lower support, a conduit is fixedly and communicatively connected to the exhaust pipe of the pressurizing pump, and the conduit communicates with the inner cavities of the two sleeve pipes.

[0008] As a further technical scheme of the present application, the lower support is provided with a reinforcing plate, and the reinforcing plate is fixedly connected to both ends of the lower support.

[0009] As a further technical scheme of the present application, a plurality of ejector rods are fixedly installed on the upper mold plate in a circumferential array, an annular plate is fixedly installed on the upper mold plate, a plurality of guide grooves are formed in the annular plate in a circumferential array, and an impact assembly is arranged in each guide groove.

[0010] As a further technical scheme of the present application, a dustproof cover is installed on the pressurizing pump.

[0011] As a further technical scheme of the present application, the impact assembly comprises a magnetic block, the magnetic block is slidably arranged in the guide groove, an electromagnet is fixedly installed in the guide groove, and an elastic member is fixedly connected between the electromagnet and the magnetic block.

[0012] The present application provides a stripping assembly for an injection molding machine, which has the following advantages compared with the prior art:

[0013] 1. The stripping assembly for the injection molding machine can inject air into the conduit through the pressurizing pump, and then the air enters the sleeve pipes on both sides, so that the air pressure in the sleeve pipes increases and the movable rods are pushed upward, and the movable rods, the side frames and the connecting rods move synchronously, the connecting rods drive the upper mold plate to move upward, and the upper mold plate can quickly separate from the workpiece.

[0014] 2、The ejection assembly for injection molding machine, through the electromagnetic iron electrification, the electromagnetic iron exerts repulsive force to the magnetic block, the magnetic block moves to the ejector rod, the elastic member is stretched, the magnetic block hits on the ejector rod, can make the ejector rod produce vibration, the vibration on the ejector rod is conducted to the upper die plate, can make the upper die plate vibrate relative to the workpiece, vibration can reduce the friction and adhesion between the mold and workpiece, so that the demolding process is more smooth. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a kind of ejection assembly for injection molding machine structure diagram;

[0016] Figure 2 It is a kind of ejection assembly for injection molding machine section view;

[0017] Figure 3 It is a kind of ejection assembly for injection molding machine sleeve part structure enlarged section view;

[0018] Figure 4 It is a kind of ejection assembly for injection molding machine impact assembly part structure enlarged section view.

[0019] In the figure: mounting bracket 1, lower support 2, side die plate 3, upper die plate 4, connecting rod 5, lower die 6, connecting seat 7, electric push rod 8, side frame 9, sleeve 10, movable rod 11, pressure pump 12, catheter 13, reinforcing plate 14, feed pipe 15, ejector rod 16, annular plate 17, guide groove 18, magnetic block 19, electromagnetic iron 20, elastic member 21. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-4The utility model provides a kind of technical scheme of stripping assembly for injection molding machine: a kind of stripping assembly for injection molding machine, comprising: mounting bracket 1, a plurality of threaded mounting holes are opened in mounting bracket 1, lower support 2 is fixedly installed on mounting bracket 1, lower support 2 is located at the lower end of mounting bracket 1, two symmetrical distribution side mould plates 3 are provided in mounting bracket 1, and mounting bracket 1 penetrates two side mould plates 3.Upper end between two side mould plates 3 is provided with upper mould plate 4, upper mould plate 4 is fixedly installed with feed pipe 15, both ends of upper mould plate 4 are fixedly installed with connecting rod 5, the lower end of connecting rod 5 penetrates lower support 2, lower end between two side mould plates 3 is provided with lower mould 6, connecting seat 7 is fixedly installed in the bottom of lower mould 6, connecting seat 7 lower end is fixedly installed on lower support 2, both sides in mounting bracket 1 are fixedly installed with electric push rod 8, the output end of electric push rod 8 is fixedly connected on side mould plate 3, connecting rod 5 is fixedly installed with side frame 9, both ends of lower support 2 are fixedly installed with sleeve pipe 10, movable rod 11 is slidably arranged in sleeve pipe 10, movable rod 11 upper end is fixedly connected on side frame 9, pressurizing pump 12 is fixedly installed on lower support 2, the exhaust pipe end of pressurizing pump 12 is communicated and fixedly installed with pipe 13, pipe 13 is communicated with the inner cavity of two sleeve pipes 10.Lower support 2 is provided with reinforcing plate 14, and both ends of reinforcing plate 14 are fixedly connected on lower support 2.By mounting bracket 1 is installed on injection molding machine, injection molding machine is injected into feed pipe 15 in molten material, material is injected into the mold cavity formed by two side mould plates 3, upper mould plate 4 and lower mould 6, when stripping, air is injected into pipe 13 by pressurizing pump 12, then air enters into two sleeve pipes 10 by pipe 13, air pressure in sleeve pipe 10 increases and movable rod 11 is pushed to move upwards, movable rod 11, side frame 9 and connecting rod 5 move synchronously, connecting rod 5 drives upper mould plate 4 to move upwards, and upper mould plate 4 can quickly separate from workpiece.At the same time, two side mould plates 3 are separated synchronously by two side electric push rods 8.

[0022] As shown in Figure 3 and Figure 4 , a plurality of top rods 16 in circumferential array distribution are fixedly installed on upper mould plate 4, annular plate 17 is fixedly installed on upper mould plate 4, a plurality of guide grooves 18 in circumferential array distribution are opened in annular plate 17, and impact assembly is arranged in each guide groove 18.Pressurizing pump 12 is installed with dust cover.Impact assembly includes magnetic block 19, magnetic block 19 is slidably arranged in guide groove 18, electromagnet 20 is fixedly installed in guide groove 18, and elastic member 21 is fixedly connected between electromagnet 20 and magnetic block 19.Before stripping work, electromagnet 20 is powered on, repulsive force is applied to magnetic block 19 by electromagnet 20, magnetic block 19 moves towards top rod 16, elastic member 21 is stretched, magnetic block 19 impacts on top rod 16, can make top rod 16 vibrate, vibration on top rod 16 is conducted to upper mould plate 4, can make upper mould plate 4 vibrate relative to workpiece, and vibration can reduce friction and adhesion between mould and workpiece.

[0023] The working principle of the utility model is: through installing the mounting frame 1 on the injection molding machine, the injection molding machine injects the molten material into the feeding pipe 15, the material is injected into the mold cavity formed by the two side mold plates 3, the upper mold plate 4 and the lower mold 6, when demolding, through the pressurizing pump 12, air is injected into the catheter 13, then into the two side sleeves 10, the air pressure in the sleeve 10 increases and pushes the movable rod 11 to move up, the movable rod 11, the side frame 9 and the connecting rod 5 move synchronously, the connecting rod 5 drives the upper mold plate 4 to move up, the upper mold plate 4 can quickly separate from the workpiece. At the same time, through the two side electric push rods 8, the two side mold plates 3 are driven to separate synchronously, the separation of the side mold plate 3 and the upper mold plate 4 from the workpiece can be realized quickly. The quick separation can significantly shorten the demolding time, thereby speeding up the production, and at the same time, it is helpful to reduce the stress received by the workpiece during demolding, thereby reducing the risk of deformation or damage.

[0024] Before demolding, the electromagnet 20 is energized, the electromagnet 20 exerts repulsive force on the magnetic block 19, the magnetic block 19 moves towards the ejector pin 16, the elastic element 21 is stretched, the magnetic block 19 hits the ejector pin 16, and the vibration of the ejector pin 16 can be generated, the vibration on the ejector pin 16 is transmitted to the upper mold plate 4, and the upper mold plate 4 can vibrate relative to the workpiece. The vibration can reduce the friction and adhesion between the mold and the workpiece, so that the demolding process is more smooth, thereby improving the demolding efficiency. Especially in injection molding, vibration assisted demolding can significantly shorten the demolding time and improve the production efficiency.

[0025] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model, such as no special description and limitation, are implemented according to the conventional means in the field.

Claims

1. A stripping assembly for an injection molding machine, characterized in that: include: A mounting frame (1), wherein a plurality of threaded mounting holes are provided on the mounting frame (1), a lower bracket (2) is fixedly mounted on the mounting frame (1), the lower bracket (2) is located at the lower end of the mounting frame (1), two symmetrically distributed side templates (3) are provided in the mounting frame (1), and the mounting frame (1) passes through the two side templates (3); An upper template (4) is provided at the upper end between the two side templates (3), a feed pipe (15) is fixedly installed on the upper template (4), connecting rods (5) are fixedly installed at both ends of the upper template (4), and the lower ends of the connecting rods (5) pass through the lower bracket (2), a lower mold (6) is provided at the lower end between the two side templates (3), a connecting seat (7) is fixedly installed at the bottom of the lower mold (6), and the lower end of the connecting seat (7) is fixedly installed on the lower bracket (2), and electric push rods (8) are fixedly installed on both sides of the mounting frame (1). The output end of the electric push rod (8) is fixedly connected to the side template (3), the connecting rod (5) is fixedly mounted with a side frame (9), both ends of the lower bracket (2) are fixedly mounted with a sleeve (10), a movable rod (11) is slidably arranged in the sleeve (10), the upper end of the movable rod (11) is fixedly connected to the side frame (9), a pressure pump (12) is fixedly mounted on the lower bracket (2), the exhaust pipe end of the pressure pump (12) is connected to and fixedly mounted with a conduit (13), and the conduit (13) is connected to the inner cavity of the two sleeves (10).

2. A stripping assembly for an injection molding machine according to claim 1, characterized in that: A reinforcing plate (14) is provided in the lower bracket (2), and both ends of the reinforcing plate (14) are fixedly connected to the lower bracket (2).

3. A stripping assembly for an injection molding machine according to claim 2, characterized in that: A plurality of push rods (16) distributed in a circumferential array are fixedly mounted on the upper template (4), an annular plate (17) is fixedly mounted on the upper template (4), a plurality of guide grooves (18) distributed in a circumferential array are formed on the annular plate (17), and impact assemblies are arranged in each of the guide grooves (18).

4. A stripping assembly for an injection molding machine according to claim 3, characterized in that: A dust cover is installed on the pressure pump (12).

5. A stripping assembly for an injection molding machine according to claim 4, characterized in that: The impact assembly comprises a magnetic block (19), the magnetic block (19) is slidably arranged in a guide groove (18), an electromagnet (20) is fixedly installed in the guide groove (18), and an elastic member (21) is fixedly connected between the electromagnet (20) and the magnetic block (19).

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