Blow mold positioning device for a blow molding machine

Abstract

This utility model relates to a blow molding die positioning device for a blow molding machine, belonging to the technical field of blow molding machines. The device includes a base with a movable structure inside. The movable structure includes a connecting plate slidably connected to the upper surface of the base, a clamping structure on the connecting plate, and a fixing structure on one side of the clamping structure. The movable structure also includes a servo motor fixedly connected to one side of the base. A threaded rod rotatably connected to the inner wall of the base is fixedly connected to the output end of the servo motor. Threaded blocks at both ends of the threaded rod are threadedly connected to the outer side of the threaded rod. One side of each threaded block is fixedly connected to one side of the connecting plate. Through this structure, the servo motor drives the threaded rod to rotate, and the cooperation of the threaded rod, threaded blocks, sliding rod, slider, connecting rod, and connecting plate moves the first and second molds, facilitating subsequent blow molding of products of different sizes.

Description

Technical Field

[0001] This utility model belongs to the field of blow molding machine technology, specifically relating to a blow molding die positioning device for blow molding machines. Background Technology

[0002] The main function of a blow molding machine is to manufacture hollow plastic parts. The machine injects molten plastic into a mold, then blows it into a hollow shape under high pressure, and finally cools and solidifies it to produce the desired product. This type of machine is widely used in the manufacture of various plastic bottles and containers, such as water bottles, food packaging bags, and cosmetic bottles.

[0003] For example, in the Chinese utility model CN217944286U, entitled "A Blow Molding Mold Positioning Device for a Blow Molding Machine," although the mold base can be stably guided and moved relative to the fixed frame through hydraulic drive, and can be detachably positioned and assembled on the inner side of both the fixed frame and the movable frame, which facilitates the disassembly and maintenance of each mold base and improves the processing effect of blow molding of the workpiece, misalignment may occur during the blow molding process due to overheating and expansion inside the mold and insufficient clamping force, which will affect the quality of the finished product. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed blow molding die positioning device for blow molding machines in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A blow molding die positioning device for a blow molding machine includes a base, a movable structure inside the base, the movable structure including a connecting plate slidably connected to the upper surface of the base, a clamping structure on the connecting plate, and a fixing structure on one side of the clamping structure, the connecting plate being positioned by the base.

[0007] As a further optimization of this utility model, the movable structure also includes a servo motor fixedly connected to one side of the base. The output end of the servo motor is fixedly connected to a threaded rod rotatably connected to the inner wall of the base. Threaded blocks located at both ends of the threaded rod are threadedly connected to the outer side of the threaded rod. One side of each of the two threaded blocks is fixedly connected to one side of the connecting plate, and the position of the threaded rod is fixed by the base.

[0008] As a further optimization of this utility model, the inner wall of the base is fixedly connected with a first slide bar located on both sides of the threaded rod, and a slider is slidably connected to the outer side of each of the two first slide bars. A connecting rod that is fixedly connected to the threaded block is fixedly connected to one side of the slider, and the position of the slider is fixed by the slide bar.

[0009] As a further optimization of this utility model, the clamping structure includes a first L-shaped support plate and a second L-shaped support plate that are respectively fixedly connected to one side of the two connecting plates. A first support rod is fixedly connected to one side of the first L-shaped support plate. A fixing plate is fixedly connected to one end of the first support rod by screws. A first mold is fixedly connected to one side of the fixing plate. Positioning rods are fixedly connected to the four corners of one side of the first mold. A blow molding port is opened at the top of the first mold. The position of the positioning rod is fixed by the first mold.

[0010] As a further optimization of this utility model, a second support rod is fixedly connected to one side of the second L-shaped support plate, and one end of the second support rod is fixedly connected to the fixing plate by screws. A second mold is fixedly connected to one side of the fixing plate, and positioning holes are provided at the four corners of one side of the second mold. A fixing structure is provided on the top of the second mold, and the position of the second support rod is fixed by the second L-shaped support plate.

[0011] As a further optimization of this utility model, the fixing structure includes a second slide rod that is slidably connected to the top of the first mold. A spring that is fixedly connected to one side of the first mold is slidably connected to the outside of the second slide rod. A fixing block is fixedly connected to one end of the spring. A fixing rod that is fixedly connected to the top of the second mold is snapped onto the outside of the fixing block. The position of the fixing rod is fixed by the second mold.

[0012] The beneficial effects of this utility model are as follows: This utility model uses a servo motor to drive the threaded rod to rotate, thereby moving the threaded block, slider, and connecting plate. The connecting plate then drives the first L-shaped support plate and the second L-shaped support plate to move, which is convenient for adapting to molds of different sizes. After the movement is completed, the position of the mold is fixed by the cooperation of the second slide rod, spring, fixing block, and fixing rod, which prevents the position of the mold from shifting due to excessive blowing speed during the blow molding process, thereby improving the quality of the blow-molded product. Attached Figure Description

[0013] Figure 1 This is a left view of the entire utility model;

[0014] Figure 2 This is a right view of the entire utility model;

[0015] Figure 3 This is a top view of the entire utility model;

[0016] Figure 4 This is a cross-sectional view of the base of this utility model;

[0017] Figure 5 This is a utility model Figure 1 A magnified view of A in the middle.

[0018] In the diagram: 1. Base; 2. Moving structure; 201. Servo motor; 202. Threaded rod; 203. Threaded block; 204. First slide bar; 205. Slider; 206. Connecting rod; 207. Connecting plate; 3. Clamping structure; 301. First L-shaped support plate; 302. First support rod; 303. Fixing plate; 304. First mold; 305. Second L-shaped support plate; 306. Second support rod; 307. Second mold; 4. Positioning rod; 5. Positioning hole; 6. Blow molding port; 7. Fixing structure; 701. Second slide bar; 702. Spring; 703. Fixing block; 704. Fixing rod. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example 1

[0021] like Figure 1 , Figure 3 and Figure 4 As shown, a blow molding die positioning device for a blow molding machine includes a base 1. A movable structure 2 is disposed inside the base 1. The movable structure 2 includes a connecting plate 207 slidably connected to the upper surface of the base 1, and a servo motor 201 fixedly connected to one side of the base 1. The servo motor 201 is model KS-02006. A threaded rod 202 rotatably connected to the inner wall of the base 1 is fixedly connected to the output end of the servo motor 201. Threaded blocks 203 located at both ends of the threaded rod 202 are threadedly connected to the outer side of the threaded rod 202. The patterns on the threaded rod 202 are symmetrically arranged. The servo motor... Machine 201 causes threaded blocks 203 to move towards each other on the threaded rod 202. One side of each of the two threaded blocks 203 is fixedly connected to one side of the connecting plate 207. The threaded blocks 203 drive the connecting plate 207 to move towards each other. The inner wall of the base 1 is fixedly connected to the first slide rods 204 located on both sides of the threaded rod 202. The outer sides of each of the two first slide rods 204 are slidably connected to sliders 205. One side of the sliders 205 is fixedly connected to a connecting rod 206 fixedly connected to one side of the threaded blocks 203. The threaded blocks 203 cause the sliders 205 on both sides to move simultaneously through the connecting rods 206.

[0022] like Figure 1 , Figure 2 and Figure 5As shown, a clamping structure 3 is provided on the connecting plate 207. The clamping structure 3 includes a first L-shaped support plate 301 and a second L-shaped support plate 305, which are respectively fixedly connected to one side of the two connecting plates 207. A first support rod 302 is fixedly connected to one side of the first L-shaped support plate 301. A fixing plate 303 is fixedly connected to one end of the first support rod 302 by screws. The screws facilitate the disassembly and replacement of the fixing plate 303. A first mold 304 is fixedly connected to one side of the fixing plate 303. Positioning rods 4 are fixedly connected to the four corners of one side of the first mold 304 to guide the first mold 304. A blow molding port 6 is opened at the top of the first mold 304 to facilitate blow molding operations into the first mold 304. A second support rod 306 is fixedly connected to one side of the second L-shaped support plate 305. One end of the second support rod 306 is fixedly connected to the fixing plate 303 by screws. A second mold 307 is fixedly connected to one side of the fixing plate 303. Positioning holes 5 are opened at the four corners of one side of the second mold 307. The positioning rod 4 is fixed in position through the positioning hole 5, so that the first mold 304 and the second mold 307 fit more tightly. The first L-shaped support plate 301 and the second L-shaped support plate 305 move to fit the first mold 304 and the second mold 307 together. The top of the second mold 307 is provided with a fixing structure 7, which includes a second slide rod 701 that is slidably connected to the top of the first mold 304. A spring 702 that is fixedly connected to one side of the first mold 304 is slidably connected to the outside of the second slide rod 701. A fixing block 703 is fixedly connected to one end of the spring 702. A fixing rod 704 that is fixedly connected to the top of the second mold 307 is snapped onto the outside of the fixing block 703. When the first mold 304 and the second mold 307 fit together, the groove on the fixing rod 704 snaps into the fixing block 703 to prevent the first mold 304 and the second mold 307 from being misaligned. When the blow molding process causes slight deformation due to pressure, the spring 702 buffers the deformation to prevent the fixing rod 704 from being misaligned and causing slight deformation of the mold, thereby improving the quality of blow molding.

[0023] It should be noted that, in use, the blow molding die positioning device for this blow molding machine allows the operator to adjust the position of the threaded block 203 and the slider 205 via the servo motor 201. The threaded rod 203 and the slider 205 drive the connecting plate 207, the first L-shaped support plate 301, and the second L-shaped support plate 305 to move towards each other. The positioning rod 4 and the positioning hole 5 work together to make the first mold 304 and the second mold 307 fit together, and the fixing rod 704 is engaged with the fixing block 703. The material inside the first mold 304 and the second mold 307 is blow molded through the blow molding port 6 at the top of the first mold 304 and the second mold 307. During the blow molding process, the mold may slightly shift. The spring 702 on the second slider 701 absorbs the pressure and prevents the fixing rod 704 from tilting. After the blow molding is completed, the servo motor 201 moves the first mold 304 and the second mold 307, making it convenient for the operator to remove the blow-molded bottle.

[0024] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A blowing mold positioning device for a blow molding machine, comprising a base (1), characterized in that, The base (1) is provided with a movable structure (2) inside. The movable structure (2) includes a connecting plate (207) that is slidably connected to the upper surface of the base (1). A clamping structure (3) is provided on the connecting plate (207). A fixing structure (7) is provided on one side of the clamping structure (3).

2. A blow mold positioning device for a blow molding machine according to claim 1, characterized in that: The movable structure (2) also includes a servo motor (201) fixedly connected to one side of the base (1). The output end of the servo motor (201) is fixedly connected to a threaded rod (202) rotatably connected to the inner wall of the base (1). The outer side of the threaded rod (202) is threadedly connected to threaded blocks (203) located at both ends of the threaded rod (202). One side of each of the two threaded blocks (203) is fixedly connected to one side of the connecting plate (207).

3. A blow mold positioning apparatus for a blow molding machine as defined in claim 1, wherein: The inner wall of the base (1) is fixedly connected to a first slide bar (204) located on both sides of the threaded rod (202). A slider (205) is slidably connected to the outer side of each of the two first slide bars (204). A connecting rod (206) is fixedly connected to one side of the slider (205) and fixedly connected to one side of the threaded block (203).

4. A blow mold positioning apparatus for a blow molding machine as defined in claim 1, wherein: The clamping structure (3) includes a first L-shaped support plate (301) and a second L-shaped support plate (305) that are respectively fixedly connected to one side of the two connecting plates (207). A first support rod (302) is fixedly connected to one side of the first L-shaped support plate (301). A fixing plate (303) is fixedly connected to one end of the first support rod (302) by screws. A first mold (304) is fixedly connected to one side of the fixing plate (303). A positioning rod (4) is fixedly connected to the four corners of one side of the first mold (304). A blow molding port (6) is opened at the top of the first mold (304).

5. A blow mold positioning apparatus for a blow molding machine as defined in claim 4, wherein: A second support rod (306) is fixedly connected to one side of the second L-shaped support plate (305). One end of the second support rod (306) is fixedly connected to the fixing plate (303) by screws. A second mold (307) is fixedly connected to one side of the fixing plate (303). Positioning holes (5) are provided at the four corners of one side of the second mold (307). A fixing structure (7) is provided on the top of the second mold (307).

6. A blow mold positioning apparatus for a blow molding machine as defined in claim 5, wherein: The fixing structure (7) includes a second slide rod (701) that is slidably connected to the top of the first mold (304). A spring (702) that is fixedly connected to one side of the first mold (304) is slidably connected to the outside of the second slide rod (701). A fixing block (703) is fixedly connected to one end of the spring (702). A fixing rod (704) that is fixedly connected to the top of the second mold (307) is snapped onto the outside of the fixing block (703).

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