Blow molding mold for plastic products

Abstract

The utility model provides a blow molding mold for plastic products. The blow molding mold comprises a workbench, a fixed plate, a movable plate, an upper mold and a lower mold, the worktable comprises a base and an upper tabletop; three groups of telescopic cylinders are arranged on the upper table top, and two groups of telescopic cylinders are connected with a fixed plate through telescopic shafts and control the fixed plate to move up and down; the other group of telescopic cylinders are connected with the movable plate through telescopic shafts; one end of the movable plate is connected with the upper die through a telescopic shaft; a sliding shaft is slidably arranged at the other end of the movable plate; the lower mold is fixed on the base, the upper mold is opposite to the lower mold, a plastic product blow molding space is formed, a feeding channel is formed in the center of the lower mold, and the sliding shaft pushes a plastic product to be molded when the movable plate moves downwards. The multi-module structure is matched with the telescopic assembly, rapid and automatic blow molding operation of plastic products can be achieved, and the blow molding efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product processing, in particular to a blow molding mold for plastic products. Background Art

[0002] Plastic products are a general term for daily necessities and industrial products made from plastic as the main raw material. It includes products made from all processes such as injection molding and blister molding using plastic as raw materials. The plastic process usually involves heating plastic particles to a fluid state and molding them into the desired product through injection technology with the help of a mold. Because plastics are easy to mold, light in weight, rich in color, beautiful and practical, their application areas are constantly expanding, and molds are important equipment for producing plastic products. Plastic products are blow molded. For some special-shaped plastic products, their structures are irregular. The current equipment operation mode is to first mold the regular structure part, and then enter the next mold to mold the other part. The molding process is multi-channel, so the efficiency in the workshop is low; in order to realize the automation of injection molding rapid molding of special-shaped products and improve the blow molding efficiency of existing workshops, we proposed a blow molding mold for plastic products. Utility Model Content

[0003] Aiming at the problems existing in the existing technical solutions, the utility model aims to provide a blow molding mold for plastic products.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A blow molding mold for plastic products, comprising a workbench, a fixed plate, a movable plate, an upper mold and a lower mold; the workbench comprises a base and an upper table; three groups of telescopic cylinders are arranged on the upper table, two groups of telescopic cylinders are connected to the fixed plate through telescopic shafts, and control the up and down movement of the fixed plate; the other group of telescopic cylinders is connected to the movable plate through the telescopic shaft; one end of the movable plate is connected to the upper mold through the telescopic shaft; the other end of the movable plate is slidably provided with a sliding shaft; the lower mold is fixed on the base, the upper mold is opposite to the lower mold, and a plastic product blow molding space is formed, and a feeding channel is arranged in the center of the lower mold, wherein the sliding shaft pushes the plastic product to be formed when the movable plate moves downward.

[0006] Furthermore, the three groups of telescopic cylinders are fixed on the upper table through a fixing frame, and the telescopic axes of the three groups of telescopic cylinders pass through the upper table respectively.

[0007] Furthermore, a limiting column is provided on the left side of the upper mold, and the limiting column is inserted into the lower mold for limiting when the upper mold and the lower mold are engaged.

[0008] Furthermore, a sliding block is provided on the right side of the upper mold, and a slideway is provided inside the sliding block.

[0009] Furthermore, a guide column is provided on the right side of the lower mold, and the guide column is slidably arranged in a slideway provided in the sliding block.

[0010] Furthermore, a baffle is provided on the rightmost exterior of the lower mold.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, the lower mold is fixed, a feed channel is set in the center of the lower mold, and injection molding is completed in the injection gate space of the upper and lower molds; synchronously, the power part of the telescopic component cooperates with the external control panel to realize periodic up and down movement of the movable plate; the automation of the injection molding gate of special-shaped plastic products is completed, and the injection molding gate efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the upper mold of the utility model in the overall rising state;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model in which the movable plate is moved downward and demoulding;

[0016] Figure 4 It is a schematic diagram of the structure of the telescopic cylinder of the utility model.

[0017] Markings in the figure: 100-plastic product; 1-workbench; 10-base; 11-upper table; 2-telescopic cylinder; 20-fixed frame; 3-fixed plate; 4-movable plate; 41-sliding shaft; 42-telescopic shaft; 5-upper mold; 51-limiting column; 52-sliding block; 6-lower mold; 60-feeding channel; 61-guide column; 62-baffle. DETAILED DESCRIPTION

[0018] 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.

[0019] Example 1

[0020] like Figure 1-4As shown, this embodiment provides a blow molding mold for plastic products, including a workbench 1, a fixed plate 3, a movable plate 4, an upper mold 5 and a lower mold 6; the workbench 1 includes a base 10 and an upper table 11; three groups of telescopic cylinders 2 are arranged on the upper table 11, wherein two groups of telescopic cylinders 2 are connected to the fixed plate 3 through telescopic shafts, and control the up and down movement of the fixed plate 3; another group of telescopic cylinders 2 is connected to the movable plate 4 through a telescopic shaft; one end of the movable plate 4 is connected to the upper mold 5 through a telescopic shaft 42; a sliding shaft 41 is slidably arranged at the other end of the movable plate 4; the lower mold 6 is fixed on the base 10, the upper mold 5 is opposite to the lower mold 6, and a plastic product blow molding space is formed, and a feed channel 63 is arranged in the center of the lower mold 6, wherein the sliding shaft 41 pushes the plastic product to be formed when the movable plate 4 moves downward.

[0021] The three groups of telescopic cylinders 2 are fixed on the upper table 11 through a fixing frame 20 , and the telescopic axes of the three groups of telescopic cylinders 2 pass through the upper table 11 respectively.

[0022] The specific injection molding process requires three steps; specifically, in the injection molding stage, see Figure 1 At this time, the telescopic shafts of the three telescopic cylinders 2 are in an extended state, the upper mold 5 and the lower mold 6 are in a closed state, the upper mold 5 is facing the lower mold 6, and a plastic product cutting gate space is formed; at this time, the injection molded material enters the blow molding gate space through the feed channel 63 to complete the injection molding; at this time, it is the original state as shown Figure 1 shown.

[0023] From the next mold stage, see Figure 2 At this time, the plastic product 100 has been blow-molded, the telescopic axes of the three telescopic cylinders 2 are retracted upward, the fixed plate 3, the movable plate 4 and the upper mold 5 are moved upward as a whole, and the upper mold 5 and the lower mold 6 are separated;

[0024] Product departure stage, this stage see Figure 3 , the left and right telescopic cylinders 2 remain stationary, and the telescopic shaft of the telescopic cylinder connected to the movable plate 4 in the middle is pushed downward; the telescopic shaft 42 is compressed, and the sliding shaft 41 slides out of the upper mold 5 to push the plastic product 100 down; after the blow molding of the plastic product 100 is completed, it quickly returns to Figure 1 position for the next cycle.

[0025] In summary, in the utility model, the lower mold is fixed, a feed channel is set in the center of the lower mold, and injection molding is completed in the injection gate space of the upper and lower molds; synchronously, the power part of the telescopic component cooperates with the external control panel to realize periodic up and down movement of the movable plate; the automation of the injection molding gate of special-shaped plastic products is completed, and the injection molding gate efficiency is greatly improved.

[0026] Example 2

[0027] This embodiment is basically the same as the embodiment 1, except that, based on the embodiment 1, this embodiment further discloses that a limiting column 51 is provided on the left side of the upper mold 5, and the limiting column 51 is inserted into the lower mold 6 for limiting when the upper mold 5 and the lower mold 6 are engaged, so as to achieve accurate positioning of the blow molding and avoid causing the product specifications and dimensions to be unqualified.

[0028] A sliding block 52 is disposed on the right side of the upper mold 5 , and a slideway is disposed inside the sliding block 52 .

[0029] A guide post 61 is provided on the right side of the lower mold 6, and the guide post 61 is slidably arranged in a slideway provided in the sliding block 52. The cooperation between the guide post 61 and the slideway provided in the sliding block 52 realizes the shaping and fixing of the side profile of the plastic product 100.

[0030] Example 3

[0031] This embodiment is basically the same as the embodiment 2, except that, based on the embodiment 2, this embodiment further discloses that a baffle 62 is provided on the rightmost outer side of the lower mold 6. The baffle 62 is used to position the sliding block 52 during injection blow molding.

[0032] The above contents are merely examples of the structure of the present utility model. The technical personnel in the relevant technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A blow molding mold for plastic products, comprising a workbench (1), a fixed plate (3), a movable plate (4), an upper mold (5) and a lower mold (6); the workbench (1) comprises a base (10) and an upper table surface (11); characterized in that: Three groups of telescopic cylinders (2) are arranged on the upper table (11), wherein two groups of telescopic cylinders (2) are connected to a fixed plate (3) via a telescopic shaft and control the up and down movement of the fixed plate (3); the other group of telescopic cylinders (2) is connected to a movable plate (4) via a telescopic shaft; one end of the movable plate (4) is connected to an upper mold (5) via a telescopic shaft (42); a sliding shaft (41) is slidably arranged at the other end of the movable plate (4); a lower mold (6) is fixed on the base (10), the upper mold (5) is directly opposite to the lower mold (6) and forms a plastic product blow molding space, a feed channel (63) is arranged in the center of the lower mold (6), wherein the sliding shaft (41) pushes the plastic product to be molded when the movable plate (4) moves downward.

2. A blow molding mold for plastic products according to claim 1, characterized in that: The three groups of telescopic cylinders (2) are fixed on the upper table (11) via a fixing frame (20), and the telescopic axes of the three groups of telescopic cylinders (2) pass through the upper table (11) respectively.

3. A blow molding mold for plastic products according to claim 1, characterized in that: A limiting column (51) is provided on the left side of the upper mold (5), and the limiting column (51) is inserted into the lower mold (6) for limiting when the upper mold (5) and the lower mold (6) are engaged.

4. A blow molding mold for plastic products according to claim 1, characterized in that: A sliding block (52) is provided on the right side of the upper mold (5), and a slideway is provided inside the sliding block (52).

5. A blow molding mold for plastic products according to claim 4, characterized in that: A guide column (61) is provided on the right side of the lower mold (6), and the guide column (61) is slidably arranged in a slideway provided in the sliding block (52).

6. A blow molding mold for plastic products according to claim 1, characterized in that: A baffle (62) is provided on the rightmost exterior of the lower mold (6).

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