Injection mold with multiple mold cavities

Abstract

The utility model discloses a multi-mold-cavity injection mold which comprises a base, a top plate is fixed to the top of the base through a supporting column, a lower forming base is installed on the top of the base in a sliding mode, an upper forming base is fixed to the bottom of the top plate through an electric telescopic rod, and a plurality of mold cavities are formed in the top of the lower forming base. A plurality of injection molding pipes are fixed to the upper forming base in a penetrating mode, and the top ends of the injection molding pipes penetrate through the top plate. According to the injection mold with the multiple mold cavities, the sealing performance between the lower forming base and the upper forming base is improved through the arrangement of the sealing pieces, external air is prevented from entering the mold cavities in the injection molding process, the injection molding quality is improved, and the anti-sticking effect can be achieved through the arrangement of the anti-sticking layers, so that a formed product cannot be stuck to the mold cavities; and meanwhile, air is blown through the air pump, air flow is blown through the air spraying pipe, cooling of the formed part is achieved, and the cooling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with multiple mold cavities. Background Art

[0002] Most of the existing automobile injection molds are only equipped with one mold cavity during the production of automobile injection molding, which is not convenient for producing multiple products at one time. In addition, the existing injection molds do not have additional seals, resulting in that the sealing cannot be well guaranteed, which in turn affects the injection molding quality of the product. Moreover, the molded products mostly use natural cooling, which has low cooling efficiency. Therefore, the utility model proposes a multi-cavity injection mold to solve the above-mentioned problems. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an injection mold with multiple mold cavities, which solves the problems mentioned in the above background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a multi-cavity injection mold, including a base, a top plate fixed to the top of the base through a pillar, a lower molding seat slidably installed on the top of the base, an upper molding seat fixed to the bottom of the top plate through an electric telescopic rod, a plurality of cavities are arranged on the top of the lower molding seat, a plurality of injection molding tubes are passed through and fixed on the upper molding seat, the top end of the injection molding tubes passes through the top plate, a sealing member is arranged between the upper molding seat and the lower molding seat, and the inner wall of the molding cavity is coated with an anti-adhesion layer.

[0005] Preferably, the seal includes a sealing groove opened on the top of the lower forming seat, the inner wall of the sealing groove is provided with a first magnetic layer, the bottom of the upper forming seat is fixed with a sealing frame used in conjunction with the sealing groove, and the inner and outer sides of the sealing frame are coated with a second magnetic layer used in conjunction with the first magnetic layer.

[0006] Preferably, the anti-adhesion layer is made of Teflon.

[0007] Preferably, a bracket is fixed on the top of the base, an air pump is fixed above the bracket, an air outlet of the air pump is connected to a conduit that runs through the bottom of the bracket, one end of the conduit is connected to a horizontal pipe, and a plurality of jet pipes are connected below the surface of the horizontal pipe.

[0008] Preferably, a hydraulic cylinder is fixed to the bottom of the base, a protrusion is fixed to the side of the lower forming seat, and one end of the hydraulic cylinder is fixed to the protrusion.

[0009] Preferably, a cooling channel is provided inside the lower forming seat, one end of the cooling channel is connected to a liquid inlet pipe, and the other end of the cooling channel is connected to a liquid outlet pipe.

[0010] Beneficial Effects

[0011] The utility model provides a multi-cavity injection mold. Compared with the prior art, it has the following beneficial effects:

[0012] The multi-cavity injection mold is provided with multiple cavities and can produce multiple products at one time. The sealing between the lower molding seat and the upper molding seat is improved by the setting of the sealing member, and the external air is prevented from entering the mold cavity during the injection molding process, thereby improving the injection molding quality. The anti-adhesion layer can be provided to prevent adhesion, so that the molded product will not adhere to the mold cavity, thereby further improving the product production quality. At the same time, air is blown by an air pump, and the air flow is blown through the jet pipe to achieve cooling of the molded part, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0014] Figure 2 It is a three-dimensional diagram of the lower forming seat structure of the utility model;

[0015] Figure 3 It is a three-dimensional cross-sectional view of the lower forming seat structure of the utility model;

[0016] Figure 4 For this utility model Figure 1 A partial enlarged view of the middle A;

[0017] Figure 5 It is a bottom view of the upper forming seat of the utility model.

[0018] In the figure: 1-base, 2-pillar, 3-top plate, 4-lower molding seat, 5-electric telescopic rod, 6-upper molding seat, 7-mold cavity, 8-injection tube, 9-seal, 91-sealing groove, 92-first magnetic layer, 93-sealing frame, 94-second magnetic layer, 10-anti-adhesive layer, 11-bracket, 12-air pump, 13-conduit, 14-cross pipe, 15-injection pipe, 16-hydraulic cylinder, 17-bump, 18-cooling channel, 19-liquid inlet pipe, 20-liquid outlet pipe. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5The utility model provides a technical solution: a multi-cavity injection mold, including a base 1, a top plate 3 is fixed to the top of the base 1 through a pillar 2, a lower molding seat 4 is slidably installed on the top of the base 1, an upper molding seat 6 is fixed to the bottom of the top plate 3 through an electric telescopic rod 5, two electric telescopic rods 5 are provided, both of which are electrically connected to an external power supply and controlled by a control switch, a plurality of cavities 7 are provided on the top of the lower molding seat 4, a plurality of injection molding tubes 8 are passed through and fixed on the upper molding seat 6, the number of injection molding tubes 8 is the same as the number of cavities 7, the top end of the injection molding tube 8 passes through the top plate 3, a sealing member 9 is provided between the upper molding seat 6 and the lower molding seat 4, the inner wall of the cavity 7 is coated with an anti-adhesion layer 10, the anti-adhesion layer 10 is made of Teflon material, has high temperature resistance, and can be anti-adhesive, so that the molded product will not adhere to the cavity 7, thereby improving the product production quality.

[0021] The seal 9 includes a sealing groove 91 opened on the top of the lower molding seat 4, and the inner wall of the sealing groove 91 is provided with a first magnetic layer 92. A sealing frame 93 used in conjunction with the sealing groove 91 is fixed to the bottom of the upper molding seat 6, and has high temperature resistance. The inner and outer sides of the sealing frame 93 are coated with a second magnetic layer 94 used in conjunction with the first magnetic layer 92. The side where the second magnetic layer 94 contacts the first magnetic layer 92 is an opposite magnetic pole. By utilizing the attraction between the opposite magnetic poles, the sealing frame 93 can stably contact the sealing groove 91 to achieve sealing, prevent external air from entering the mold cavity 7 during the injection molding process, and improve the production quality of the product.

[0022] The lower molding seat 4 is provided with a cooling channel 18 inside, one end of the cooling channel 18 is connected to a liquid inlet pipe 19, and the other end of the cooling channel 18 is connected to a liquid outlet pipe 20. An external cooling pump can send coolant into the cooling channel 18 through the liquid inlet pipe 19, and take away the heat on the lower molding seat 4 by heat transfer, thereby realizing the cooling of the molded part. A bracket 11 is fixed on the top of the base 1, and an air pump 12 is fixed above the bracket 11, which is electrically connected to the external power supply and controlled by the control switch. The air outlet of the air pump 12 is connected to a liquid outlet that penetrates to the bracket 11. A conduit 13 is provided below the frame 11, one end of which is connected to a transverse tube 14, and both ends are closed. A plurality of jet tubes 15 are provided below the surface of the transverse tube 14, a hydraulic cylinder 16 is fixed to the bottom of the base 1, which is connected to an external oil pump and controlled by a control switch, a convex block 17 is fixed to the side of the lower forming seat 4, one end of the hydraulic cylinder 16 is fixed to the convex block 17, and the entire lower forming seat 4 is moved forward by the extension of the hydraulic cylinder 16, so that the lower forming seat 4 is located below the transverse tube 14, and air is blown by the air pump 12 to achieve secondary cooling of the formed part.

[0023] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0024] During operation, the electric telescopic rod 5 is started to drive the upper molding seat 6 to move downward, thereby closing the upper molding seat 6 and the lower molding seat 4. At the same time, each sealing frame 93 is respectively inserted into the corresponding sealing groove 91. Since the second magnetic layer 94 and the first magnetic layer 92 contact each other on one side with opposite magnetic poles, the sealing frame 93 can stably contact the sealing groove 91 by utilizing the attraction between the opposite magnetic poles to achieve sealing, thereby preventing external air from entering the mold cavity 7 during the injection molding process. Then, the injection molding operation is performed through the injection molding pipe 8. After injection molding, the external cooling pump can be started to cool the mold cavity 7 by entering the injection molding pipe 8. The liquid pipe 19 delivers coolant into the cooling channel 18, and takes away the heat on the lower forming seat 4 by heat transfer, thereby cooling the molded part. Then, the electric telescopic rod 5 is started to drive the upper forming seat 6 to remove the mold, and then the hydraulic cylinder 16 is started. The hydraulic cylinder 16 extends and drives the entire lower forming seat 4 to move forward, so that the lower forming seat 4 is located below the cross tube 14. Air is blown by the air pump 12, and the air flow blows through the air jet pipe 15 to achieve secondary cooling of the molded part. After cooling, the molded part is taken out, and then the hydraulic cylinder 16 is started to drive the entire lower forming seat 4 to move backward and reset.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-cavity injection mold, comprising a base (1), a top plate (3) being fixed to the top of the base (1) via a support (2), Features: A lower molding seat (4) is slidably mounted on the top of the base (1); an upper molding seat (6) is fixed to the bottom of the top plate (3) via an electric telescopic rod (5); a plurality of mold cavities (7) are arranged on the top of the lower molding seat (4); a plurality of injection molding tubes (8) are passed through and fixed on the upper molding seat (6); the top ends of the injection molding tubes (8) pass through the top plate (3); a sealing member (9) is arranged between the upper molding seat (6) and the lower molding seat (4); and an anti-adhesion layer (10) is coated on the inner wall of the mold cavity (7).

2. A multi-cavity injection mold according to claim 1, Features: The sealing member (9) comprises a sealing groove (91) provided at the top of the lower forming seat (4), the inner wall of the sealing groove (91) being provided with a first magnetic layer (92), a sealing frame (93) used in conjunction with the sealing groove (91) being fixed at the bottom of the upper forming seat (6), and the inner and outer sides of the sealing frame (93) being coated with a second magnetic layer (94) used in conjunction with the first magnetic layer (92).

3. The multi-cavity injection mold according to claim 1, Features: The anti-adhesion layer (10) is made of Teflon material.

4. The multi-cavity injection mold according to claim 1, Features: A bracket (11) is fixed on the top of the base (1), an air pump (12) is fixed above the bracket (11), an air outlet of the air pump (12) is connected to a conduit (13) that runs through the bottom of the bracket (11), one end of the conduit (13) is connected to a transverse tube (14), and a plurality of air injection tubes (15) are connected below the surface of the transverse tube (14).

5. The multi-cavity injection mold according to claim 1, Features: A hydraulic cylinder (16) is fixed to the bottom of the base (1), a convex block (17) is fixed to the side of the lower forming seat (4), and one end of the hydraulic cylinder (16) is fixed to the convex block (17).

6. The multi-cavity injection mold according to claim 1, Features: A cooling channel (18) is provided inside the lower molding seat (4); one end of the cooling channel (18) is connected to a liquid inlet pipe (19), and the other end of the cooling channel (18) is connected to a liquid outlet pipe (20).

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