Auxiliary demolding device for injection molding production

Abstract

The utility model discloses an auxiliary demolding device for injection molding production. The auxiliary demolding device comprises a mold base I, a mold base II and a demolding mechanism, a feeding groove is formed in the first mold base, a fixed mold groove is formed in the right side face of the first mold base, and the fixed mold groove communicates with the feeding groove; the left side face of the second die holder is fixedly connected with a fixed die block, the fixed die block and the fixed die groove are installed in a matched mode, an allowance hole is formed in the second die holder, and the left end of the allowance hole extends out of the left side face of the fixed die block; the demolding mechanism is arranged between the first mold base and the second mold base and comprises a demolding plate, four sliding holes, an avoiding groove, an ejector pin and a sliding column, and the four sliding holes are all formed in the second mold base. And technical instability or misoperation of operators during manual mold taking is avoided, meanwhile, contact between the operators and the mold can be reduced, and the injury risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding demoulding, in particular to an auxiliary demoulding device for injection molding production. Background Art

[0002] Injection molding is a common plastic processing method. It injects heated molten plastic into a mold under high pressure and forms the desired plastic product after cooling. However, auxiliary demoulding devices can improve the automation level of the injection molding production line, reduce manual intervention, improve the overall automation level of the production line, and improve production efficiency and quality.

[0003] In traditional injection molding production, when the injection mold is fully opened, the operator holds the molded part and applies force in the appropriate direction to separate the molded part from the adsorption force or friction force of the injection mold and remove it from the mold.

[0004] The traditional auxiliary demolding device for injection molding production has the following problems: in the process of manual mold removal, affected by personal skills and experience, the operator may have the risk of misoperation during the mold removal process, resulting in damage to the molded parts, reduced production efficiency and other problems, and there may also be the risk of being pinched by the mold clamping parts or other accidental injuries. For this reason, we propose an auxiliary demolding device for injection molding production. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an auxiliary demoulding device for injection molding production, so as to avoid the operator's unstable skills or misoperation when manually removing the mold, and at the same time reduce the contact between the operator and the mold, reduce the risk of injury, and effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary demoulding device for injection molding production, comprising a mold base 1, a mold base 2 and a demoulding mechanism;

[0007] Die base 1: a feed trough is provided inside the die base, and a fixed die groove is provided on the right side of the die base 1, and the fixed die groove is connected with the feed trough;

[0008] Mold base 2: The left side thereof is fixedly connected with a fixed module, the fixed module is installed in cooperation with the fixed mold groove, a margin hole is opened inside the mold base 2, and the left end of the margin hole extends to the outside of the left side of the fixed module;

[0009] Demolding mechanism: It is set between mold base one and mold base two, and can stably and quickly remove the molded part from the injection mold, avoiding unstable skills or misoperation of the operator during manual mold removal. At the same time, it can reduce the contact between the operator and the mold, reducing the risk of injury.

[0010] Furthermore, the demolding mechanism includes a demolding plate, a sliding hole, an avoidance groove, an ejector pin and a sliding column. There are four sliding holes, and the four sliding holes are all opened inside the mold base 2. The inner walls of the sliding holes are slidably connected with sliding columns. The left ends of the sliding columns are fixedly connected to the right side surfaces of a demolding plate. An avoidance groove is opened inside the demolding plate, and the inner walls of the avoidance groove are fixedly connected with ejector pins. The ejector pins are installed in cooperation with a fixed module, so that the molded parts can be stably and quickly removed from the injection mold.

[0011] Furthermore, the demoulding mechanism also includes spring 2, which is fixedly connected between the right side surface of the demoulding plate and the left side surface of the adjacent mold base 2. The spring 2 is sleeved on the outer surface of the sliding column to assist the movement of the demoulding plate.

[0012] Furthermore, the demoulding mechanism also includes a fixed block 1, a support rod, a fixed block 2 and a fixed ring. The fixed block 2 is respectively fixedly connected to the four corners of the outer surface of the demoulding plate, and the fixed block 1 is respectively fixedly connected to the four corners of the right side surface of the mold base 1. Slides are provided inside the fixed block 1 and the fixed block 2, and a support rod is slidably connected between two laterally adjacent slides. The front and rear ends of the support rod are fixedly connected to the fixed ring to drive the demoulding plate to be demoulded.

[0013] Furthermore, the demoulding mechanism also includes a spring 1, which is fixedly connected between the left side surface of the fixed block 2 and the right side surface of the laterally adjacent fixed block 1. The spring 1 is sleeved on the outer surface of the support rod to assist the movement of the support rod.

[0014] Furthermore, it also includes a guide groove, which is opened in the middle of the upper surface of the stripping plate, and the bottom end of the guide groove extends to the outside of the left side of the stripping plate. The guide groove is installed in cooperation with the fixed module to facilitate subsequent demolding.

[0015] Furthermore, it also includes an injection port, which is arranged in the middle of the left side surface of the mold base, and the central axis of the injection port coincides with the avoidance groove, the margin hole, the fixed mold groove and the feed groove respectively, so that the demolding work is smooth.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the auxiliary demoulding device for injection molding production has the following advantages:

[0017] After the molding is completed, the injection molding machine drives the mold base to move to the left, so that the fixed mold groove is separated from the fixed module, and at the same time drives the support rod to move synchronously until the support rod slides to the maximum space on the inner wall of the slide, so that the fixing ring at the right end of the support rod contacts the fixed block 2, generating a pulling force. The pulling force drives the stripping plate and the sliding column to move to the right along the inner wall of the sliding hole, and assists in demolding through the action of spring 2. However, during the movement of the stripping plate, the ejector pin in the avoidance groove contacts the molded part on the fixed module, and then the ejector pin is used to hang the molded part from the outer surface of the fixed module, and finally the molded part falls to the outside, so that the molded part can be removed from the injection mold stably and quickly, avoiding product damage or deformation caused by unstable operator skills or misoperation during manual mold removal, and at the same time reducing the contact between the operator and the mold, reducing the risk of injury, and improving the safety of the production site. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic structural diagram of the front side section of the utility model.

[0020] In the figure: 1 mold base 1, 2 demoulding mechanism, 201 fixing ring, 202 fixing block 1, 203 support rod, 204 spring 1, 205 fixing block 2, 206 demoulding plate, 207 guide groove, 208 sliding hole, 209 spring 2, 210 avoidance groove, 211 ejector pin, 212 sliding column, 3 mold base 2, 4 excess hole, 5 fixed mold groove, 6 injection port, 7 feed trough, 8 fixed module. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 , this embodiment provides a technical solution: an auxiliary demoulding device for injection molding production, including a mold base 1, a mold base 2 3 and a demoulding mechanism 2;

[0023] Mold base 1: a feed slot 7 is provided inside the mold base 1, and a fixed mold slot 5 is provided on the right side of the mold base 1. The fixed mold slot 5 is connected to the feed slot 7. The external single chip microcomputer controls the external injection molding machine to apply high pressure to the molten plastic, so that the molten plastic is ejected and fills the feed slot 7, until the entire fixed mold slot 5 is filled;

[0024] Mold base 2 3: The left side thereof is fixedly connected with a fixed module 8, which is installed in cooperation with the fixed die groove 5. A margin hole 4 is provided inside the mold base 2 3, and the left end of the margin hole 4 extends to the outside of the left side of the fixed module 8. The fixed module 8 is used for shaping to ensure the accuracy of the product shape, and the excess molten plastic is discharged to the outside through the margin hole 4. At the same time, the margin hole 4 also has a certain ventilation function, which can ensure that sufficient ventilation is obtained during injection molding, avoid the formation of bubbles in the molded part, and ensure the quality of the molded part;

[0025] Demolding mechanism 2: It is arranged between mold base 1 and mold base 2 3. The demoulding mechanism 2 includes a demoulding plate 206, a sliding hole 208, an avoidance groove 210, an ejector pin 211 and a slide column 212. There are four sliding holes 208, and the four sliding holes 208 are all opened inside the mold base 2 3. The inner wall of the sliding hole 208 is slidably connected with a slide column 212. The left end of the slide column 212 is fixedly connected to the right side of a demoulding plate 206. The inside of the demoulding plate 206 is provided with an avoidance groove 210. The inner wall of the avoidance groove 210 is fixedly connected with an ejector pin 211. The ejector pin 211 is installed in cooperation with a fixed module 8. The demoulding mechanism 2 also includes a spring 209. The spring 209 is fixedly connected between the right side of the demoulding plate 206 and the left side of the adjacent mold base 2 3. The springs 209 are sleeved on the outer surface of the sliding column 212, the demoulding mechanism 2 also includes a fixed block 202, a support rod 203, a fixed block 205 and a fixed ring 201, the fixed block 205 is respectively fixedly connected to the four corners of the outer surface of the demoulding plate 206, the fixed block 1 202 is respectively fixedly connected to the four corners of the right side of the mold base 1, the fixed block 1 202 and the fixed block 205 are both provided with sliding openings inside, the support rod 203 is slidably connected between two laterally adjacent sliding openings, the front and rear ends of the support rod 203 are fixedly connected with the fixed ring 201, the demoulding mechanism 2 also includes a spring 204, the spring 204 is fixedly connected between the left side of the fixed block 205 and the right side of the laterally adjacent fixed block 202, the spring 1 204 is sleeved on the support rod The outer surface of 203 also includes a guide groove 207, which is opened in the middle of the upper surface of the stripping plate 206, and the bottom end of the guide groove 207 extends to the outside of the left side of the stripping plate 206. The guide groove 207 is installed in conjunction with the fixed die block 8, and also includes an injection port 6, which is set in the middle of the left side of the mold base 1, and the central axis of the injection port 6 coincides with the avoidance groove 210, the margin hole 4, the fixed die groove 5 and the feed groove 7. First, the discharge port of the external injection molding machine is connected to the injection port 6, and then the injection port 6 is pushed to move, and the mold base 1 is driven to move at the same time, so that the support rod 203 moves to the right along the inner wall of the sliding port, and the spring 1 204 is compressed at the same time, and then the mold base 1 is continuously pushed until the support rod 203 slides to the minimum on the inner wall of the sliding port. The space makes the fixing ring 201 at the left end of the support rod 203 contact with the fixing block 1 202, generating a driving force on the stripping plate 206, driving the stripping plate 206 and the sliding column 212 to move to the right along the inner wall of the sliding hole 208 until the fixed mold groove 5 fits with the fixed module 8. However, the fixed module 8 is located in the avoidance groove 210. However, after the finalization is completed, the demoulding agent is first poured into the guide groove 207, and the demoulding agent flows to the outer surface of the fixed module 8 through the guide groove 207 to facilitate the subsequent demoulding. Then the injection molding machine drives the mold base 1 to move to the left, so that the fixed mold groove 5 is separated from the fixed module 8, and at the same time drives the support rod 203 to move synchronously until the support rod 203 is slid to the maximum space on the inner wall of the sliding mouth, so that the fixing ring 201 at the right end of the support rod 203 contacts with the fixing block 205.A pulling force is generated, which drives the stripper plate 206 and the slide column 212 to move rightward along the inner wall of the slide hole 208, and assists in demoulding through the force of the spring 209. However, during the movement of the stripper plate 206, the ejector pin 211 in the avoidance groove 210 contacts the molded part on the fixed module 8, and then the ejector pin 211 is used to hang the molded part off the outer surface of the fixed module 8, and finally the molded part falls to the outside, so that the molded part can be stably and quickly removed from the injection mold.

[0026] The working principle of the auxiliary demoulding device for injection molding production provided by the utility model is as follows: first, the discharge port of the external injection molding machine is connected to the injection port 6, and then the injection port 6 is pushed to move, and the mold base 1 is driven to move at the same time, so that the support rod 203 moves to the right along the inner wall of the sliding port, and the spring 1 204 is compressed at the same time, and then the mold base 1 is continuously pushed until the support rod 203 slides on the inner wall of the sliding port to the minimum space, so that the fixing ring 201 at the left end of the support rod 203 contacts the fixing block 1 202, and the demoulding plate 206 is pushed. The power drives the stripper plate 206 and the slide column 212 to move rightward along the inner wall of the slide hole 208 until the fixed mold groove 5 fits with the fixed module 8. However, the fixed module 8 is located in the avoidance groove 210. At the same time, the external single-chip microcomputer controls the external injection molding machine to apply high pressure to the molten plastic, so that it is ejected and fills the inside of the feed groove 7 until it fills the entire fixed mold groove 5. The fixed module 8 is used to shape the product to ensure that the product shape is accurate. The excess molten plastic is discharged to the outside through the excess hole 4. At the same time, the excess hole 4 also has a certain ventilation function. To ensure that sufficient ventilation is obtained during injection molding, bubbles are prevented from forming in the molded part, and the quality of the molded part is guaranteed. However, after the molding is completed, the mold release agent is first poured into the guide groove 207, and the mold release agent flows to the outer surface of the fixed module 8 through the guide groove 207 to facilitate subsequent demolding. Then the injection molding machine drives the mold base 1 to move leftward, so that the fixed mold groove 5 is separated from the fixed module 8, and at the same time drives the support rod 203 to move synchronously until the support rod 203 slides on the inner wall of the sliding mouth to the maximum space, so that the fixing ring 203 at the right end of the support rod 203 is 1 contacts with the second fixed block 205, generating a pulling force, which drives the stripping plate 206 and the sliding column 212 to move rightward along the inner wall of the sliding hole 208, and assists in demoulding through the force of the second spring 209. However, during the movement of the stripping plate 206, the ejector pin 211 in the avoidance groove 210 contacts the molded part on the fixed module 8, and then the ejector pin 211 is used to hang the molded part off the outer surface of the fixed module 8, and finally the molded part falls to the outside, so that the molded part can be stably and quickly taken out of the injection mold.

[0027] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Auxiliary demoulding device for injection molding production, characterized by: It comprises a mold base 1 (1), a mold base 2 (3) and a demoulding mechanism (2); The mold base (1) has a feed trough (7) formed therein, and a fixed mold groove (5) formed on the right side of the mold base (1), wherein the fixed mold groove (5) is connected to the feed trough (7); The second mold base (3): a fixed module (8) is fixedly connected to the left side thereof, the fixed module (8) is installed in cooperation with the fixed mold groove (5), a margin hole (4) is opened inside the second mold base (3), and the left end of the margin hole (4) extends to the outside of the left side of the fixed module (8); Demolding mechanism (2): It is arranged between mold base 1 (1) and mold base 2 (3).

2. The auxiliary demoulding device for injection molding production according to claim 1, characterized in that: The demoulding mechanism (2) comprises a demoulding plate (206), a sliding hole (208), an avoidance groove (210), an ejector pin (211) and a slide column (212). The number of the sliding holes (208) is four. The four sliding holes (208) are all arranged inside the mold base (3). The inner walls of the sliding holes (208) are slidably connected with the slide columns (212). The left ends of the slide columns (212) are fixedly connected to the right side surface of a demoulding plate (206). The interior of the demoulding plate (206) is provided with an avoidance groove (210). The inner walls of the avoidance groove (210) are fixedly connected with the ejector pins (211). The ejector pins (211) are installed in cooperation with a fixed module (8).

3. The auxiliary demoulding device for injection molding production according to claim 2, characterized in that: The demoulding mechanism (2) also includes a second spring (209), which is fixedly connected between the right side surface of the demoulding plate (206) and the left side surface of the adjacent mold base (3), and the second spring (209) is sleeved on the outer surface of the sliding column (212).

4. The auxiliary demoulding device for injection molding according to claim 2, characterized in that: The demoulding mechanism (2) further comprises a fixing block 1 (202), a support rod (203), a fixing block 2 (205) and a fixing ring (201); the fixing block 2 (205) is respectively fixedly connected to the four corners of the outer surface of the demoulding plate (206); the fixing block 1 (202) is respectively fixedly connected to the four corners of the right side surface of the mold base 1 (1); sliding openings are provided inside the fixing block 1 (202) and the fixing block 2 (205); a support rod (203) is slidably connected between two sliding openings adjacent to each other in the transverse direction; and the front and rear ends of the support rod (203) are both fixedly connected to the fixing ring (201).

5. The auxiliary demoulding device for injection molding production according to claim 4, characterized in that: The demoulding mechanism (2) further comprises a spring one (204), wherein the spring one (204) is fixedly connected between the left side surface of the fixed block two (205) and the right side surface of the laterally adjacent fixed block one (202), and the spring one (204) is sleeved on the outer surface of the support rod (203).

6. The auxiliary demoulding device for injection molding production according to claim 5, characterized in that: It also includes a guide groove (207), which is opened in the middle of the upper surface of the stripper plate (206), and the bottom end of the guide groove (207) extends to the outside of the left side of the stripper plate (206), and the guide groove (207) is installed in coordination with the fixed module (8).

7. The auxiliary demoulding device for injection molding according to claim 2, characterized in that: It also includes an injection port (6), which is arranged in the middle of the left side surface of the mold base (1), and the central axis of the injection port (6) coincides with the avoidance groove (210), the residual hole (4), the fixed mold groove (5) and the feed groove (7).

Images