Compression mold

Abstract

The utility model relates to a compression mold which comprises a material chamber, the material cavity is formed in the upper side of the material chamber; the injection molding holes are formed in the bottom of the material cavity and penetrate through the material chamber, and the multiple injection molding holes are formed; and the flow guide grooves are formed in the bottom of the material cavity and connected with the multiple adjacent injection molding holes, and the multiple flow guide grooves are formed. The injection mold has the beneficial effects that raw materials in the material cavity can be effectively converged by the flow guide groove when the injection mold is used, so that the raw materials enter the injection molding hole from the material cavity more easily and then are extruded, and the thickness of waste materials in the material cavity is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a compression mold. Background Art

[0002] Compression molds are also called compression molds for short. Plastic raw materials are directly added to the open mold cavity, and the mold is closed. Under the action of heat and pressure, the plastic becomes fluid and fills the cavity. The product is then hardened and shaped through chemical cross-linking or physical cooling.

[0003] Chinese patent CN102601911B discloses a commutator compression mold, which includes an upper template, a middle template, a lower template, a bottom plate, an upper hook, a mold core, a material chamber, a pressure head, a pull rod and front and rear guide pillars. The material chamber is movably arranged below the upper template, and the material chamber is slidably hung on the pull rod. The upward movement of the material chamber is pulled by the pull rod, and the pull rod is fixedly connected to the upper template. The pressure head is fixedly installed at the bottom of the upper template, and the pressure head is opposite to the material cavity of the material chamber. The bottom plate of the material chamber is provided with arranged injection holes, the upper hook is fixedly installed on the side of the material chamber, and the bottom of the upper hook has a support platform for supporting the middle template. The middle template is movably arranged, and the middle template is provided with front and rear guide holes and arranged mold holes. The front and rear guide holes correspond to the front and rear guide pillars. The number of arranged mold holes is the same as that of injection holes and mold core and corresponds one to one. The mold core and front and rear guide pillars are fixedly arranged on the lower template, and the lower template is fixedly installed on the bottom plate.

[0004] When the above patent is in use, the raw material in the material cavity is squeezed by the pressure head, and the heated raw material is injected into the mold hole of the middle template from the injection hole. Even if the pressure head moves down to the lowest position, there will still be residual raw material in the material cavity, and it cannot be fully squeezed out, thereby generating waste. It has been calculated that after each processing, about 51.5g of waste will remain in the material cavity and the injection hole, resulting in a lot of waste of raw materials. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a compression mold to solve the above problems.

[0006] The technical solution of the utility model is achieved as follows: a compression mold, comprising:

[0007] Material room;

[0008] A material cavity, which is opened on the upper side of the material chamber;

[0009] An injection hole is provided at the bottom of the material cavity and passes through the material cavity, and a plurality of injection holes are provided;

[0010] The guide groove is opened at the bottom of the material cavity and connects multiple adjacent injection holes. The guide groove is provided in multiple lines.

[0011] The present utility model is further configured such that: the width of the diversion groove is greater than the diameter of the upper end of the injection hole.

[0012] The present utility model is further configured such that: the depth of the diversion groove is set to 0.6 mm.

[0013] The present utility model is further configured such that: the injection hole is provided with an inverted conical shape, and the end with a larger diameter is communicated with the diversion groove.

[0014] The present utility model is further configured such that: the upper edge of the injection hole is provided with a rounded corner.

[0015] The present utility model is further configured such that: the diversion groove is provided in a long strip shape or an arc shape.

[0016] By adopting the above technical solution, during use, the diversion groove can effectively converge the raw materials in the material cavity, making it easier for the raw materials to enter the injection hole from the material cavity and then be extruded. The thickness of the waste materials in the material cavity is effectively reduced, from the original 0.8 mm to 0.3 mm. Therefore, after measurement, about 35 g of waste materials will remain in the material chamber after each processing. Compared with before, 16.5 g of raw materials can be saved each time of processing. 16.5 g * 100 molds * 2 shifts * 26 days * 0.046 material unit price = 3946 yuan. Therefore, about 3946 yuan of costs can be saved each month. Without changing the product performance, the cost can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the specific implementation manner of the present utility model; SPECIFIC IMPLEMENTATION MANNER

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0020] As Figure 1 shown, the present utility model discloses a compression mold, including

[0021] Material chamber 1;

[0022] Material cavity 2, the material cavity 2 is opened on the upper side of the material chamber 1;

[0023] Injection hole 3, the injection hole 3 is opened at the bottom of the material cavity 2 and penetrates through the material chamber 1, and a plurality of injection holes 3 are provided;

[0024] Flow guide groove 4, the flow guide groove 4 is opened at the bottom of the material cavity 2 and connects a plurality of adjacent injection holes 3, and a plurality of flow guide grooves 4 are provided.

[0025] In the embodiment of the present invention, the width of the flow guide groove 4 is greater than the diameter of the upper end of the injection hole 3.

[0026] In the embodiment of the present invention, the depth of the flow guide groove 4 is set to 0.6 mm.

[0027] In the embodiment of the present invention, the injection hole 3 is arranged in an inverted conical shape, and the end with a larger diameter is communicated with the flow guide groove 4.

[0028] In the embodiment of the present invention, the upper end edge of the injection hole 3 is provided with a rounded corner.

[0029] In the embodiment of the present invention, the flow guide groove 4 is arranged in a long strip shape or an arc shape.

[0030] By adopting the above technical solutions, during use, the flow guide groove 4 can effectively converge the raw materials in the material cavity 2, making it easier for the raw materials to enter the injection hole 3 from the material cavity 2 and then be extruded. The thickness of the waste materials in the material cavity 2 is effectively reduced, from the original 0.8 mm to 0.3 mm. Therefore, after measurement, about 35 g of waste materials will remain in the material chamber 1 after each processing. Compared with before, 16.5 g of raw materials can be saved each time of processing. 16.5 g * 100 molds * 2 shifts * 26 days * 0.046 material unit price = 3946 yuan. Therefore, about 3946 yuan of costs can be saved each month. Without changing the product performance, the cost can be effectively reduced.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compression mold, characterized in that, Including, a material chamber (1); a material cavity (2), which is opened on the upper side of the material chamber (1); injection holes (3), which are opened at the bottom of the material cavity (2) and penetrate through the material chamber (1), and a plurality of the injection holes (3) are provided; flow guiding grooves (4), which are opened at the bottom of the material cavity (2) and connect a plurality of adjacent injection holes (3), and a plurality of the flow guiding grooves (4) are provided.

2. The compression mold according to claim 1, characterized in that, The width of the flow guiding groove (4) is greater than the diameter of the upper end of the injection hole (3).

3. A compression mold according to claim 1, characterized in that, The depth of the flow guiding groove (4) is set to 0.6 mm.

4. A compression mold according to claim 1, characterized in that, The injection hole (3) is arranged in an inverted conical shape, and the end with a larger diameter is communicated with the flow guiding groove (4).

5. A compression mold according to claim 1, characterized in that, The upper end edge of the injection hole (3) is provided with a rounded corner.

6. The compression mold according to claim 1, characterized in that, The flow guiding groove (4) is arranged in a long strip shape or an arc shape.

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