Fixed mold automatic product stripping structure for injection mold

Abstract

The utility model relates to an automatic product stripping structure for a fixed mold of an injection mold, and belongs to the technical field of rubber molds. Comprising a fixed mold bottom plate, a runner plate, a fixed mold plate, a push plate and a movable mold plate which are sequentially arranged on a positioning guide column in a sleeving mode from top to bottom, the two ends of a fixed-distance pull plate are connected with the push plate and the movable mold plate respectively, a mold locking device is used for locking the push plate and the fixed mold plate together, and the fixed-distance pull plate sequentially penetrates through the movable mold plate, the push plate and the fixed mold plate from top to bottom. The stop bolt sequentially penetrates through the fixed mold bottom plate and the runner plate from top to bottom, and the fixed-distance pull rod is in threaded connection with the stop bolt; the fixed mold core penetrates through the fixed mold plate and then is in close contact with the push plate; the runner plate is pressed on the fixed mold core; and the sprue bush is mounted on the runner plate and is in bolted connection with the fixed mold bottom plate. Pouring is carried out through the sprue bush on the side of the fixed mold plate, demolding of the fixed mold plate is achieved, and the problem that a product at a pouring point on the inner side is difficult to form is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fixed mould automatic product structure for injection mould belongs to rubber mould technical field. BACKGROUND

[0002] Current production some dust cover products usually exist the problem of pouring point in the inside. The prior art is mainly fixed mould pouring, and the movable mould uses the ejector rod to demould. This structure is suitable for general situation, but when the pouring gate is located in the inside of the product, the pouring forming and demoulding cannot be effectively realized. The existing mould cannot produce high-quality inside pouring dust cover products, which affects the appearance, performance and service life of the product. The product with appearance defects needs additional time and resources for product repair.

[0003] Therefore, there is an urgent need for a novel, efficient, economical and practical injection mould structure, which can effectively solve the pouring forming and demoulding problem of inside pouring dust cover products, so as to optimize the production process and product quality. UTILITY MODEL CONTENT

[0004] In order to solve the problems in the prior art, the utility model provides a fixed mould automatic product structure for injection mould, which realizes pouring through the pouring bush on the side of the fixed mould plate and realizes demoulding of the fixed mould plate, so as to solve the problem that the inside pouring point product is difficult to form.

[0005] The utility model adopts the technical scheme of a kind of fixed mould automatic product structure for injection mould, including fixed mould base plate, runner plate, fixed mould plate, push plate, movable mould plate that are sequentially set on locating guide column from top to bottom, fixed distance pull plate both ends are connected push plate and movable mould plate respectively, locking device is used to lock push plate and fixed mould plate together, the upper surface of fixed mould base plate and the lower surface of fixed mould plate are all equipped with stepped hole, fixed distance pull rod is sequentially penetrated movable mould plate, push plate, fixed mould plate from top to bottom, stop bolt is sequentially penetrated fixed mould base plate, runner plate from top to bottom, fixed distance pull rod is connected with stop bolt screw thread;Fixed mould core is penetrated fixed mould plate and is in close contact with push plate, runner plate is pressed on fixed mould core;Pouring bush is installed on runner plate and is bolted with fixed mould base plate.

[0006] Further, the upper surface of the fixed mould plate is provided with a groove, and a spring is placed in the groove.

[0007] Further, the fixed distance pull rod penetrates the groove, and the spring is sleeved on the fixed distance pull rod.

[0008] Further, the fixed distance pull plate is provided with a slide, one end of the fixed distance pull plate is fixed on the push plate through a positioning bolt, and the other end of the fixed distance pull plate is fixed on the movable mould plate through a sliding bolt, and under the action of force, the sliding bolt can slide in the vertical direction along the slide.

[0009] Further, the push plate is provided with a through hole for the distance bolt to pass through, the movable die plate is provided with a let slot, and the push plate and the fixed die plate are connected through the distance bolt.

[0010] Further, the mold locking device is a nylon mold locking device.

[0011] The utility model discloses a fixed mold automatic product structure for injection mold, which has the beneficial effects that compared with the prior art, the utility model discloses a nylon mold locking device, which realizes locking or unlocking between the fixed die plate and the push plate through elastic deformation, and the effective separation of the push plate and the movable die plate is ensured through the cooperation of the distance pull rod, the positioning bolt and the sliding bolt. The runner plate top of the utility model is provided with a sprue bushing to deliver raw materials to the fixed mold core, which solves the problem that the product on the inner side pouring point is difficult to form; the product quality is improved, the product appearance is more beautiful, the performance is better, and the service life is longer; the production efficiency is improved, the production cost is reduced, and the market competitiveness is improved. DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can also be obtained according to these drawings without the creative labor of the person skilled in the art.

[0013] Figure 1 As shown is a mold closing state structure schematic diagram of the utility model embodiment 1;

[0014] Figure 2 As shown is a mold opening process a schematic diagram of the utility model embodiment 1;

[0015] Figure 3 As shown is a mold opening process b schematic diagram of the utility model embodiment 1;

[0016] Figure 4 As shown is a mold opening process c schematic diagram of the utility model embodiment 1;

[0017] Figure 5 As shown is a completely mold opening schematic diagram of the utility model embodiment 1.

[0018] As shown in the drawing: 1, fixed mold base plate, 2, stop bolt, 3, sprue bushing, 4, runner plate, 5, fixed die plate, 6, fixed mold core, 7, distance pull rod, 8, push plate, 9, movable die plate, 10, mold locking device, 11, distance bolt, 12, distance pull plate, 13, positioning bolt, 14, sliding bolt, 15, let slot, 16, groove, 17, spring, 18, support column, 19, support leg, 20, movable die base plate, 21, product. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination 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. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. 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.

[0020] In order to further understand the content of the present application, the technical scheme will be further described below in combination with specific embodiments.

[0021] Embodiment 1: as Figures 1 to 5As shown, the embodiment provides a fixed mold automatic product structure for injection mold, which comprises a fixed mold base plate 1, a runner plate 4, a fixed mold plate 5, a push plate 8 and a movable mold plate 9 which are sequentially sleeved on the positioning guide column from top to bottom. Specifically, the positioning guide column penetrates the top four corners of the fixed mold base plate 1, the outer side of the positioning guide column is provided with a guide sleeve, the positioning guide column and the guide sleeve cooperate to play a guiding role, the both ends of the fixed distance pull plate 12 are respectively connected with the push plate 8 and the movable mold plate 9, the fixed distance pull plate 12 is provided with a slide, one end of the fixed distance pull plate 12 is fixed on the push plate 8 through a positioning bolt 13, the other end of the fixed distance pull plate 12 is fixed on the movable mold plate 9 through a sliding bolt 14, and under the action of force, the sliding bolt 14 can slide in the vertical direction along the slide. The mold locking device 10 is used for locking the push plate 8 and the fixed mold plate 5 together, specifically, the push plate 8 and the fixed mold plate 5 are both provided with a containing groove, the containing groove is used for containing a lock cap device, and the lock cap device adopts a nylon mold locking device in the embodiment. One end of the nylon mold locking device is screwed in the containing groove of the push plate 8, the other end of the nylon mold locking device extends into the containing groove of the fixed mold plate 5, under the action of pulling force, because the nylon mold locking device has a certain elasticity, the nylon mold locking device is separated from the fixed mold plate 5, so that the push plate 8 and the fixed mold plate 5 are separated. The upper surface of the fixed mold base plate 1 and the lower surface of the fixed mold plate 5 are both provided with a stepped hole, a fixed distance pull rod 7 penetrates the movable mold plate 9, the push plate 8 and the fixed mold plate 5 from top to bottom, a stop bolt 2 penetrates the fixed mold base plate 1 and the runner plate 4 from top to bottom, the fixed distance pull rod 7 is threadedly connected with the stop bolt 2, specifically, the lower surface of the runner plate 4 is provided with a stepped groove, one end of the fixed distance pull rod 7 is fixed in the stepped groove and connected with the stop bolt 2, and there is a certain distance between the stop bolt 2 and the fixed mold base plate 1. In the embodiment, the distance is 10 mm. In the mold closing state, the stop bolt 2 is clamped at the stepped hole of the fixed mold base plate 1, and the other end of the fixed distance pull rod 7 is located below the movable mold plate 9; in the completely mold opening state, the stop bolt 2 is clamped at the stepped hole of the fixed mold base plate 1, and the other end of the fixed distance pull rod 7 is clamped at the stepped hole of the fixed mold plate 5. The fixed mold core 6 is in close contact with the push plate 8 after penetrating the fixed mold plate 5, the runner plate 4 is pressed on the fixed mold core 6, the sprue bush 3 is communicated with the runner plate 4, and the sprue bush 3 is bolted with the fixed mold base plate 1.

[0022] As a specific embodiment of the embodiment, the push plate 8 is provided with a through hole, the movable mold plate 9 is provided with a displacement slot 15, the push plate 8 and the fixed mold plate 5 are connected through a fixed distance bolt 11, and specifically, one end of the fixed distance bolt 11 penetrates the through hole and is connected with the fixed mold plate 5. In the mold closing state, the other end of the fixed distance bolt 11 is located in the displacement slot 15.

[0023] The movable mold plate 9 is provided below with a supporting leg 19 and a supporting column 18, the supporting column 18 and the supporting leg 19 are used for supporting the movable mold plate 9, and ensure that the movable mold plate 9 is not deformed under the injection pressure. The supporting column 18 and the supporting leg 19 are connected below with a movable mold base plate 20. The molding machine drives the movable mold base plate 20 to move, and then drives the movable mold plate 9 to move.

[0024] In practical applications, when mold opening is required, the molding machine moves the moving template 9 downwards. Due to the action of the nylon mold clamping device and the spacer bolts 11, such as Figure 2 As shown, the push plate 8 and the fixed template 5 move downwards synchronously, and the fixed-distance tie rod 7 lifts the flow channel plate 4, locking the tie rod 7 at the step hole of the fixed template 5; as Figure 3 The stop bolt 2 is moved downwards until it is in contact with the fixed mold base plate 1, and the runner plate 4 separates from the fixed mold base plate 1; then as shown Figure 4 As shown, the moving template 9 drives the sliding bolt 14 to move downwards along the slide rail. The moving template 9 separates from the push plate 8. When the sliding bolt 14 moves to the bottom of the slide rail, the spacer bolt 11 disengages from the relief groove 15, and the product 21 disengages from the moving template 9. Figure 5 The movable template 9 drives the push plate 8 and the fixed template 5 to move downwards. The nylon mold clamp slowly pulls out of the fixed template 5. Due to the action of the spacer bolt 11, the nylon mold clamp is not completely pulled out of the fixed template 5, but it still separates the fixed template 5 from the push plate 8, allowing the product 21 to be completely ejected. This utility model solves the problem of difficult molding of the product 21 at the inner pouring point by pouring through the sprue sleeve 3 on the side of the fixed template 5 and achieving demolding of the fixed template 5.

[0025] Example 2: As Figures 1 to 5 As shown, based on Embodiment 1, the upper surface of the fixed template 5 is provided with a groove 16, and a spring 17 is placed in the groove 16. Specifically, the fixed-distance tie rod 7 passes through the groove 16, and the spring 17 is sleeved on the fixed-distance tie rod 7. When the mold is closed, the flow channel plate 4 and the fixed template 5 are tightly fitted together, and at this time the spring 17 is in a compressed state.

[0026] Unlike the working process of Example 1, when the mold is opened, the moving template 9 moves downward. Due to the action of the nylon mold clamping device and the spacer bolt 11, as... Figure 2 As shown, the push plate 8 and the fixed template 5 move downwards synchronously, and the fixed-distance tie rod 7 lifts the runner plate 4. When the runner plate 4 and the fixed template 5 just separate, the runner plate 4 and the fixed template 5 separate faster due to the action of the spring 17. That is to say, the fixed-distance tie rod 7 and the spring 17 work together to promote the separation of the runner plate 4 and the fixed template 5. When mold closing is required, the molding machine drives the moving template 9 to move upwards, causing the push plate 8, the fixed template 5, the runner plate 4 and other components to fit tightly together. The nylon mold clamp is reinserted into the fixed template 5, and the fixed-distance bolt 11 falls into the relief groove 15. That is to say, all components are reset. The raw material flows from the sprue sleeve 3 and along the runner plate 4 into the fixed mold core 6. After plasticizing and molding, the desired product 21 is produced.

[0027] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic product release structure for a fixed mold in injection molds, characterized in that, The mold includes, from top to bottom, a fixed mold base plate (1), a runner plate (4), a fixed template (5), a push plate (8), and a moving template (9) mounted on the positioning guide pillars. A spacer pull plate (12) connects the push plate (8) and the moving template (9) at both ends. A mold locking device (10) locks the push plate (8) and the fixed template (5) together. Stepped holes are provided on the upper surface of the fixed mold base plate (1) and the lower surface of the fixed template (5). A spacer pull rod (7) extends from top to bottom... The moving template (9), the push plate (8), and the fixed template (5) are passed through in sequence. The stop bolt (2) passes through the fixed mold base plate (1) and the runner plate (4) from top to bottom. The fixed distance tie rod (7) is threadedly connected to the stop bolt (2). The fixed mold core (6) passes through the fixed template (5) and then comes into close contact with the push plate (8). The runner plate (4) presses on the fixed mold core (6). The sprue sleeve (3) is installed on the runner plate (4) and bolted to the fixed mold base plate (1).

2. The automatic product release structure for a fixed mold in an injection mold according to claim 1, characterized in that, The upper surface of the template (5) is provided with a groove (16), and a spring (17) is placed in the groove (16).

3. The automatic product release structure for a fixed mold in an injection mold according to claim 2, characterized in that, The fixed-distance tie rod (7) passes through the groove (16), and the spring (17) is sleeved on the fixed-distance tie rod (7).

4. The automatic product removal structure for a fixed mold in an injection mold according to claim 1, characterized in that, The fixed-distance pull plate (12) is provided with a slide rail. One end of the fixed-distance pull plate (12) is fixed to the push plate (8) by a positioning bolt (13), and the other end of the fixed-distance pull plate (12) is fixed to the moving template (9) by a sliding bolt (14). Under the action of force, the sliding bolt (14) can slide along the slide rail in the vertical direction.

5. The automatic product release structure for a fixed mold in an injection mold according to any one of claims 1 or 4, characterized in that, The push plate (8) has a through hole for the spacer bolt (11) to pass through, and the moving template (9) has a relief groove (15). The push plate (8) and the fixed template (5) are connected by the spacer bolt (11).

6. The automatic product release structure for a fixed mold in an injection mold according to claim 1, characterized in that, The mold clamping device (10) is a nylon mold clamp.

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