Injection mold with insert positioning mechanism

Abstract

The utility model discloses an injection mold with an insert positioning mechanism. The injection mold comprises a positioning device and an insert positioning mechanism, the outer wall of the pressing device is fixedly connected with the outer wall of the positioning device; the utility model relates to the technical field of insert mould positioning, through the mutual cooperation of the positioning device and the pressing device, the positioning column on the inner wall of the forming groove of the concave mould plate and the positioning hole on the outer wall of the bottom of the convex mould plate, the insert can be accurately and preliminarily positioned, and the motor drives the threaded rod to rotate, so that the supporting plate moves upwards along the threaded rod; the insert and the plastic finished product are ejected out of the forming groove through the sliding rod and the rubber pad, the sealing pad at the bottom of the convex mold plate is in close contact with the outer wall of the top of the concave mold plate to form a closed injection molding cavity, and the exhaust holes in the convex mold plate can exhaust air in the cavity in time in the injection molding process; and the rubber column at the bottom of the positioning plate is matched with the exhaust pipe, so that the positioning plate can be ejected.

Description

TECHNICAL FIELD

[0001] The utility model relates to insert mould positioning technical field, concretely relates to a kind of injection mould with insert positioning mechanism. BACKGROUND

[0002] With the continuous development of modern industry, injection molding technology has been widely applied in various fields. However, in the injection molding process, the production of plastic products with inserts has always faced some problems.

[0003] In the traditional injection mold, the positioning of the insert is often not accurate enough, which can easily lead to low precision and quality of the injection molding product. This not only affects the appearance and performance of the product, but also can increase the scrap rate and production cost. In addition, the demolding process is also a key link. The traditional demolding method is usually complex, difficult to operate manually, labor-intensive and low in production efficiency. When the plastic product is stuck to the mold, demolding is more difficult, and the mold or product may even be damaged. SUMMARY

[0004] To solve the technical problems of the prior art, the utility model adopts the technical scheme of an injection mold with an insert positioning mechanism, which includes a positioning device and a lower pressing device. The outer wall of the lower pressing device is fixedly connected with the outer wall of the positioning device. The positioning device includes a die plate, the top outer wall of which is fixedly connected with a support frame. A forming groove is formed in the top outer wall of the die plate, and a positioning column is fixedly connected to the inner wall of the forming groove. A sliding groove is formed in the inner wall of the bottom of the forming groove, and a sliding rod is slidingly connected to the inner wall of the sliding groove. A rubber pad is fixedly connected to the top outer wall of the sliding rod, and a support plate is fixedly connected to the bottom outer wall of the sliding rod. A threaded rod is threadedly connected to the inner wall of the support plate, and a motor is rotatably connected to the bottom outer wall of the threaded rod. A feed pipe is fixedly connected to the inner wall of the bottom of the die plate.

[0005] Preferably, the interior of the feed pipe is in communication with the interior of the forming groove, the outer wall of the bottom of the motor is fixedly connected with the outer wall of the support frame, the outer wall of the top of the threaded rod is rotatably connected with the outer wall of the bottom of the die plate, the sliding rods are arrayed along the four corners of the support plate, and the positioning columns are arrayed along the inner wall of the forming groove. The motor is started to drive the threaded rod to rotate. Since the threaded rod is threadedly connected with the support plate, the sliding rods at the four corners of the support plate slide in the sliding groove, which restricts the rotation of the support plate and makes the support plate move upward along the threaded rod, while driving the sliding rods to move the rubber pad upward along the sliding groove.

[0006] Preferably, the lower pressing device comprises a positioning plate, the outer wall of the bottom of the positioning plate is fixedly connected with a lifting rod, the inner wall of the top of the positioning plate is fixedly connected with a hydraulic cylinder, the outer wall of the bottom of the hydraulic cylinder is fixedly connected with a male die plate, the outer wall of the bottom of the male die plate is fixedly connected with a sealing gasket, the outer wall of the bottom of the male die plate is provided with a positioning hole and an exhaust hole, and the exhaust hole penetrates through the male die plate, the outer wall of the top of the male die plate is symmetrically provided with a heat dissipation groove, and the outer wall of the top of the positioning plate is fixedly connected with a rubber column.

[0007] Preferably, the outer wall of the rubber column is slidably connected with the inner wall of the exhaust hole, the lifting rods are arranged at the four corners of the positioning plate, the rubber columns are arranged on the outer wall of the top of the positioning plate, the inner wall of the male die plate is slidably connected with the outer wall of the lifting rod, and the positioning holes are arranged on the outer wall of the bottom of the male die plate.

[0008] Preferably, the outer wall of the top of the female die plate is fixedly connected with the outer wall of the bottom of the lifting rod, the inner wall of the forming groove is slidably connected with the outer wall of the male die plate, the outer wall of the positioning column is slidably connected with the inner wall of the positioning hole, the outer wall of the top of the female die plate is in contact with the outer wall of the bottom of the sealing gasket, with the descending of the male die plate, the inner wall of the forming groove is slidably connected with the male die plate, the positioning hole on the outer wall of the bottom of the male die plate is slidably connected with the positioning column on the inner wall of the forming groove of the female die plate, the sealing gasket on the bottom of the male die plate is in contact with the outer wall of the top of the female die plate, and the lower pressing action is completed.

[0009] The utility model discloses the following advantages:

[0010] 1. The positioning device is arranged, the positioning column on the inner wall of the forming groove of the female die plate and the positioning hole on the outer wall of the bottom of the male die plate are matched with each other, the insert can be accurately positioned initially, the insert can be ensured to be in the correct position during the injection molding process, thereby the precision and quality of the injection molding product are improved, the threaded rod is rotated under the drive of the motor, the supporting plate moves upwards along the threaded rod, the insert and the plastic product are pushed out from the forming groove through the slide rod and the rubber pad, convenient demolding operation is realized, the demolding mode is simple and efficient, the difficulty and labor intensity of manual operation are reduced, and the production efficiency is improved.

[0011] 2. The utility model discloses a lower pressing device is set up, and the sealing gasket of male die plate bottom is in close contact with the outer wall of female die plate top, forms the closed injection cavity, effectively prevents the leakage of plastic in the injection process, and the exhaust hole on male die plate can discharge the air in the cavity in time in the injection process, avoids the influence of the injection quality of the air entrapment phenomenon, simultaneously, when the plastic finished product sticks on male die plate, the rubber column of positioning plate bottom can be taken out through cooperation with the exhaust pipe, further ensures the smooth operation of demoulding. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is the structural schematic diagram of the positioning plate of the utility model;

[0014] Figure 3 It is the structural schematic diagram of the radiating groove of the utility model;

[0015] Figure 4 It is the structural schematic diagram of the lower pressing device of the utility model;

[0016] Figure 5 It is the structural schematic diagram of male die plate of the utility model;

[0017] Figure 6 It is the structural schematic diagram of the positioning device of the utility model;

[0018] Figure 7 It is the structural schematic diagram of female die plate of the utility model;

[0019] Figure 8 It is the structural schematic diagram of the support plate of the utility model.

[0020] In the drawing: 1, positioning device, 2, lower pressing device, 11, female die plate, 111, support frame, 12, forming groove, 13, positioning column, 14, sliding slot, 15, sliding rod, 151, rubber pad, 16, support plate, 17, threaded rod, 18, motor, 19, feed pipe, 21, positioning plate, 22, lifting rod, 23, hydraulic cylinder, 24, male die plate, 241, sealing gasket, 25, positioning hole, 26, exhaust hole, 27, radiating groove, 28, rubber column. DETAILED DESCRIPTION

[0021] The embodiments of the present application are presented by way of example and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application in order to design various embodiments with various modifications for specific use cases. Embodiments

[0022] Please refer to Figure 1 - Figure 8 The utility model provides a technical scheme: a injection mold with insert positioning mechanism, include: positioning device 1, lower pressure device 2, lower pressure device 2's outer wall is fixedly connected with the outer wall of positioning device 1, positioning device 1 includes die plate 11, the outer wall fixedly connected with support frame 111 at die plate 11 top, the outer wall of die plate 11 top is set up with forming groove 12, the inner wall fixedly connected with positioning column 13 of forming groove 12, the inner wall of forming groove 12 bottom is set up with sliding slot 14, the inner wall sliding connection has of sliding slot 14 sliding rod 15, the outer wall fixedly connected with rubber pad 151 at sliding rod 15 top, the outer wall fixedly connected with support plate 16 at sliding rod 15 bottom, the inner wall screw thread connection has of support plate 16 threaded rod 17, the outer wall rotationally connected with motor 18 at threaded rod 17 bottom, the inner wall fixedly connected with feed pipe 19 at die plate 11 bottom.

[0023] The inside of feed pipe 19 communicates with the inside of forming groove 12, the outer wall of motor 18 bottom is fixedly connected with the outer wall of support frame 111, the outer wall rotationally connected with die plate 11 bottom at threaded rod 17 top The outer wall of die plate 11, sliding rod 15 along the four corners of support plate 16, array sorting, positioning column 13 along the inner wall of forming groove 12 array sorting, motor 18 starts, drives threaded rod 17 to rotate, because threaded rod 17 is screw connected with support plate 16, the sliding rod 15 at the four corners of support plate 16 slides in sliding slot 14, restricts the rotation of support plate 16, makes support plate 16 move upwards along threaded rod 17, simultaneously drives sliding rod 15 to move upwards along sliding slot 14 Rubber pad 151.

[0024] Lower pressure device 2 includes positioning plate 21, the outer wall fixedly connected with lifting rod 22 at positioning plate 21 bottom, the inner wall fixedly connected with hydraulic cylinder 23 at positioning plate 21 top, the outer wall fixedly connected with male die plate 24 at hydraulic cylinder 23 bottom, the outer wall fixedly connected with sealing pad 241 at male die plate 24 bottom, the outer wall is set up with positioning hole 25 and exhaust hole 26 at male die plate 24 bottom, and exhaust hole 26 penetrates male die plate 24, the outer wall is set up with symmetrical heat dissipation groove 27 at male die plate 24 top, the outer wall fixedly connected with rubber column 28 at positioning plate 21 top.

[0025] The outer wall of the rubber column 28 is in sliding connection with the inner wall of the exhaust hole 26, the lifting rods 22 are arranged along the four corners of the positioning plate 21, the rubber columns 28 are arranged along the outer wall of the top of the positioning plate 21, the inner wall of the convex die plate 24 is in sliding connection with the outer wall of the lifting rod 22, the positioning holes 25 are arranged along the outer wall of the bottom of the convex die plate 24, the hydraulic cylinders 23 on the positioning plate 21 push the bottom fixedly connected convex die plate 24 to move up and down along the lifting rods 22 through the support of the positioning plate 21, and at the same time the rubber columns 28 slide along the exhaust hole 26.

[0026] The outer wall of the top of the concave die plate 11 is fixedly connected with the outer wall of the bottom of the lifting rod 22, the inner wall of the forming groove 12 is in sliding connection with the outer wall of the convex die plate 24, the outer wall of the positioning column 13 is in sliding connection with the inner wall of the positioning hole 25, the outer wall of the top of the concave die plate 11 is in contact with the outer wall of the bottom of the sealing gasket 241, with the lowering of the convex die plate 24, the inner wall of the forming groove 12 slides, at the same time the positioning hole 25 on the outer wall of the bottom of the convex die plate 24 slides with the positioning column 13 on the inner wall of the forming groove 12 of the concave die plate 11, finally the sealing gasket 241 on the bottom of the convex die plate 24 is in contact with the outer wall of the top of the concave die plate 11, that is, the downward pressing action is completed, and the positioning column 13, the positioning hole 25, the sealing gasket 241 and the convex die plate 24 and the forming groove 12 are cooperated to form a closed injection cavity.

[0027] Working principle: the embedded part to be injection molded is placed in the forming groove 12 of the concave die plate 11 on the positioning device 1, the positioning column 13 on the inner wall of the forming groove 12 preliminarily positions the embedded part to ensure that the embedded part is in the correct position, then the downward pressing device 2 works, the hydraulic cylinders 23 on the positioning plate 21 are started, the hydraulic cylinders 23 start to work, the bottom fixedly connected convex die plate 24 is pushed to move downward along the lifting rod 22 through the support of the positioning plate 21, with the lowering of the convex die plate 24, the inner wall of the forming groove 12 slides, at the same time the positioning hole 25 on the outer wall of the bottom of the convex die plate 24 slides with the positioning column 13 on the inner wall of the forming groove 12 of the concave die plate 11, finally the sealing gasket 241 on the bottom of the convex die plate 24 is in contact with the outer wall of the top of the concave die plate 11, that is, the downward pressing action is completed, and the positioning column 13, the positioning hole 25, the sealing gasket 241 and the convex die plate 24 and the forming groove 12 are cooperated to form a closed injection cavity, good sealing is realized, plastic leakage in the injection molding process is prevented, and at the same time the precise alignment of the convex die plate 24 and the concave die plate 11 is ensured.

[0028] Then the molten plastic enters the injection cavity formed by the forming groove 12 and the convex die plate 24 through the feeding pipe 19 on the inner wall of the bottom of the concave die plate 11, in the injection molding process, the air in the injection cavity can be discharged through the exhaust hole 26 on the convex die plate 24, at the same time whether the internal material is filled can be judged by observing whether the material overflows from the exhaust hole 26, the smooth progress of the injection molding process is ensured, and the heat dissipation groove 27 on the top of the convex die plate 24 can accelerate the cooling and molding of the plastic.

[0029] After injection molding, the hydraulic cylinder 23 drives the male die plate 24 to rise, the positioning column 13 is separated from the positioning hole 25, the sealing gasket 241 is separated from the female die plate 11, usually, the molded plastic product and the insert are in the molding groove 12, then the motor 18 on the support frame 111 is started to drive the threaded rod 17 to rotate, because the threaded rod 17 is screwed with the support plate 16, the slide rod 15 at the four corners of the support plate 16 slides in the sliding groove 14, which limits the rotation of the support plate 16, so that the support plate 16 moves upward along the threaded rod 17, and the slide rod 15 and the rubber pad 151 are also moved upward, so that the insert and the plastic product are pushed out from the molding groove 12. After the plastic product is taken out, the motor 18 is reversed to drive the threaded rod 17 to reverse, so that the support plate 16 is lowered to drive the slide rod 15 and the rubber pad 151 to reset. If the molded plastic product is stuck on the male die plate 24, as the male die plate 24 rises, the rubber column 28 at the bottom of the positioning plate 21 slides along the exhaust hole 26 and inserts into the male die plate 24, so that the plastic product stuck on the male die plate 24 is pushed out, and then it can be taken down.

[0030] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. An injection mold having an insert positioning mechanism, characterized by, Include: Positioning device (1); Down press device (2), the outer wall of the down press device (2) is fixedly connected with the outer wall of the positioning device (1); The positioning device (1) comprises a female die plate (11), the outer wall of the top of the female die plate (11) is fixedly connected with a support frame (111), the outer wall of the top of the female die plate (11) is provided with a forming groove (12), the inner wall of the forming groove (12) is fixedly connected with a positioning column (13), the inner wall of the bottom of the forming groove (12) is provided with a sliding groove (14), the inner wall of the sliding groove (14) is slidably connected with a sliding rod (15), the outer wall of the top of the sliding rod (15) is fixedly connected with a rubber pad (151), the outer wall of the bottom of the sliding rod (15) is fixedly connected with a support plate (16), the inner wall of the support plate (16) is threadedly connected with a threaded rod (17), the outer wall of the bottom of the threaded rod (17) is rotatably connected with a motor (18), the inner wall of the bottom of the female die plate (11) is fixedly connected with a feeding pipe (19).

2. An injection mold having an insert positioning mechanism according to claim 1, characterized in that: The inside of the feeding pipe (19) is communicated with the inside of the forming groove (12), the outer wall of the bottom of the motor (18) is fixedly connected with the outer wall of the support frame (111), the outer wall of the top of the threaded rod (17) is rotatably connected with the outer wall of the bottom of the female die plate (11), the sliding rod (15) is arrayed along the four corners of the support plate (16), and the positioning column (13) is arrayed along the inner wall of the forming groove (12).

3. An injection mold having an insert positioning mechanism according to claim 1, wherein: The down press device (2) comprises a positioning plate (21), the outer wall of the bottom of the positioning plate (21) is fixedly connected with a lifting rod (22), the inner wall of the top of the positioning plate (21) is fixedly connected with a hydraulic cylinder (23), the outer wall of the bottom of the hydraulic cylinder (23) is fixedly connected with a male die plate (24), the outer wall of the bottom of the male die plate (24) is fixedly connected with a sealing gasket (241), the outer wall of the bottom of the male die plate (24) is provided with a positioning hole (25) and an exhaust hole (26), and the exhaust hole (26) penetrates the male die plate (24), the outer wall of the top of the male die plate (24) is symmetrically provided with a heat dissipation groove (27), and the outer wall of the top of the positioning plate (21) is fixedly connected with a rubber column (28).

4. An injection mold having an insert positioning mechanism according to claim 3, wherein: The outer wall of the rubber column (28) is slidably connected with the inner wall of the exhaust hole (26), the lifting rod (22) is arrayed along the four corners of the positioning plate (21), the rubber column (28) is arrayed along the outer wall of the top of the positioning plate (21), the inner wall of the male die plate (24) is slidably connected with the outer wall of the lifting rod (22), and the positioning hole (25) is arrayed along the outer wall of the bottom of the male die plate (24).

5. An injection mold having an insert positioning mechanism according to claim 1, wherein: The outer wall of the top of the female die plate (11) is fixedly connected with the outer wall of the bottom of the lifting rod (22), the inner wall of the forming groove (12) is slidably connected with the outer wall of the male die plate (24), the outer wall of the positioning column (13) is slidably connected with the inner wall of the positioning hole (25), and the outer wall of the top of the female die plate (11) is in contact with the outer wall of the bottom of the sealing gasket (241).

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