Mold opening and closing mechanism of bottle blowing machine

Abstract

The utility model discloses a mould opening and closing mechanism of a bottle blowing machine, which comprises a rack, a right mould and a left mould, a right moving platform is mounted on one side of the top of the rack, the right mould is mounted on the right moving platform, a left moving platform is mounted on the other side of the top of the rack, the left mould is mounted on the left moving platform, and the right moving platform is mounted on the left moving platform. The right moving platform and the left moving platform can slide on the machine frame, and the two sides of the outer side of the machine frame are each provided with a telescopic air cylinder. The left moving platform and the right moving platform can be used for installing and fixing a left mold and a right mold respectively, the positioning rod and the positioning boss which are located on the supporting platform can position and place the molds so that the molds cannot slide front and back, and the side limiting fixing plates are pushed by the springs to press the side faces of the molds. And the locking rods on the side limiting fixing plates are inserted into the assembling holes in the mold, so that the mold cannot slide left and right, and the mold is fixed in the mode, so that the mold is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the technical field of mold opening and closing mechanisms, specifically a mold opening and closing mechanism for a blow molding machine. Background Technology

[0002] In the production process of plastic extrusion hollow blow molding machines, the plastic tube preform is generally cut by extrusion die on the plastic extruder, and then placed into the plastic hollow blow molding die (this type of die consists of two halves of clamping die). High-pressure gas is blown in to form the plastic tube preform into the mold. The force generated by the high-pressure gas makes it fit tightly into the cavity of the mold. After a certain period of pressure holding, cooling and shaping, it becomes the desired plastic hollow product.

[0003] Existing blow molding dies and mold opening and closing mechanisms are usually connected and fixed with bolts. Although the connection is secure, it makes it difficult to quickly disassemble the mold when it needs to be replaced. Utility Model Content

[0004] The purpose of this invention is to provide a mold opening and closing mechanism for a blow molding machine to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blow molding machine mold opening and closing mechanism, including a frame, a right mold and a left mold, a right moving platform is installed on one side of the top of the frame, the right mold is installed on the right moving platform, a left moving platform is installed on the other side of the top of the frame, the left mold is installed on the left moving platform, both the right moving platform and the left moving platform can slide on the frame, and a telescopic cylinder is installed on each of the outer sides of the frame;

[0006] The left moving platform has the same structure as the right moving platform. The right moving platform consists of a support platform, side plate, pull plate, spring, side limiting fixing plate, light rod, and light rod bracket. At each end of the top side of the support platform, a light rod bracket is vertically fixed. Two light rods are installed between the two light rod brackets from top to bottom. At each end of the upper light rod, a pull plate, a side limiting fixing plate, a spring, and a side plate are sequentially fitted from the inside to the outside. The side limiting fixing plate and the side plate are fitted between the two light rods. The side plate is fixed with nuts. A positioning rod and four positioning bosses are fixed in the area on the top of the support platform for placing the mold. Four locking rods are fixed on the side of the side limiting fixing plate.

[0007] Preferably, the frame is a square frame structure formed by two support rails and two connecting beams. Multiple guide wheels are evenly spaced on the top of the support rails. A telescopic cylinder mounting seat is fixed above the middle of the connecting beam. Two positioning slide rods are fixed between the two connecting beams.

[0008] Preferably, the bottom of the support platform is fixed with two sliding sleeves, which are sleeved on the positioning slide rod.

[0009] Preferably, a hook is vertically fixed to the middle of the side of the pull plate.

[0010] Preferably, a mold connecting plate is fixed on the telescopic end of the telescopic cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The left moving platform and the right moving platform of this utility model can be used to install and fix the left mold and the right mold respectively. The left moving platform and the right moving platform are both composed of a support platform, a side plate, a pull plate, a spring, a side limiting fixing plate, a light rod and a light rod bracket. The positioning rod and the positioning boss on the support platform can position the mold so that the mold will not slide back and forth. The side limiting fixing plate presses the side of the mold under the push of the spring. The locking rod on the side limiting fixing plate is inserted into the assembly hole on the mold so that the mold will not slide left and right. The mold is fixed in the above way, which facilitates the replacement of the mold.

[0012] When it is necessary to change the mold, the side limiting plate can be moved outward by pulling the pull plate. The side plate can be held in place by hooking the hook on the pull plate, which makes it easier to change the mold.

[0013] The frame component—the support rail—has multiple guide wheels evenly spaced at the top, which helps reduce frictional resistance when the mold opens and closes. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model and the combined structure of the mold;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the frame of this utility model.

[0018] In the diagram: 1. Frame; 2. Right moving platform; 3. Telescopic cylinder; 4. Right mold; 5. Left mold; 6. Left moving platform; 7. Support rail; 8. Connecting beam; 9. Telescopic cylinder mounting base; 10. Positioning slide rod; 11. Support platform; 12. Sliding sleeve; 13. Positioning rod; 14. Positioning boss; 15. Side plate; 16. Hook; 17. Pull plate; 18. Spring; 19. Side limit fixing plate; 20. Mold connecting plate; 21. Smooth rod; 22. Smooth rod bracket; 23. Locking rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Please see Figure 1-3 In this embodiment of the present invention, a blow molding machine mold opening and closing mechanism includes a frame 1, a right mold 4 and a left mold 5. A right moving platform 2 is installed on one side of the top of the frame 1, and the right mold 4 is installed on the right moving platform 2. A left moving platform 6 is installed on the other side of the top of the frame 1, and the left mold 5 is installed on the left moving platform 6. Both the right moving platform 2 and the left moving platform 6 can slide on the frame 1. A telescopic cylinder 3 is installed on each of the outer sides of the frame 1. A mold connecting plate 20 is fixed on the telescopic end of the telescopic cylinder 3.

[0021] The left moving platform 6 has the same structure as the right moving platform 2. The right moving platform 2 consists of a support platform 11, a side plate 15, a pull plate 17, a spring 18, a side limiting fixing plate 19, a light rod 21, and a light rod bracket 22. At each end of the top side of the support platform 11, a light rod bracket 22 is vertically fixed. Between the two light rod brackets 22, two light rods 21 are installed from top to bottom. At each end of the upper light rod 21, a pull plate 17, a side limiting fixing plate 19, a spring 18, and a side plate 15 are sequentially installed from the inside to the outside. A hook 16 is vertically fixed in the middle of the side of the pull plate 17. The side limiting fixing plate 19 and the side plate 15 are fitted between the two light rods 21. The side plate 15 is fixed with a nut. At the top of the support platform 11, in the area where the mold is placed, a positioning rod 13 and four positioning bosses 14 are fixed. Four locking rods 23 are fixed on the side of the side limiting fixing plate 19.

[0022] The frame 1 is a square frame structure formed by two support rails 7 and two connecting beams 8. Multiple guide wheels are evenly spaced on the top of the support rails 7. A telescopic cylinder mounting seat 9 is fixed above the middle of the connecting beam 8. Two positioning slide rods 10 are fixed between the two connecting beams 8.

[0023] Two sliding sleeves 12 are fixed at the bottom of the support platform 11, and the sliding sleeves 12 are fitted onto the positioning slide rod 10.

[0024] The working principle of this utility model is as follows: The left moving platform 6 and the right moving platform 2 of this utility model can be used to install and fix the left mold 5 and the right mold 4 respectively. The left moving platform 6 and the right moving platform 2 are both composed of a support platform 11, a side plate 15, a pull plate 17, a spring 18, a side limiting fixing plate 19, a light rod 21 and a light rod bracket 22. The positioning rod 13 and the positioning boss 14 on the support platform 11 can position the mold so that the mold will not slide back and forth. The side limiting fixing plate 19 presses the side of the mold under the push of the spring 18. The locking rod 23 on the side limiting fixing plate 19 is inserted into the assembly hole on the mold so that the mold will not slide left and right. The mold is fixed in the above way, which facilitates the replacement of the mold.

[0025] When it is necessary to change the mold, the side limiting plate 19 can be moved outward by pulling the pull plate 17. The side plate 19 can be kept in position by hooking the hook 16 on the pull plate 17 onto the side plate 15, which facilitates the replacement of the mold.

[0026] The support rail 7, a component of the frame 1, has multiple guide wheels evenly spaced on its top, which helps to reduce the frictional resistance of the mold during opening and closing.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A blow molding machine mold opening and closing mechanism, comprising a frame (1), a right mold (4), and a left mold (5), characterized in that: A right moving platform (2) is installed on one side of the top of the frame (1), and the right mold (4) is installed on the right moving platform (2). A left moving platform (6) is installed on the other side of the top of the frame (1), and the left mold (5) is installed on the left moving platform (6). Both the right moving platform (2) and the left moving platform (6) can slide on the frame (1). A telescopic cylinder (3) is installed on each of the outer sides of the frame (1). The left moving platform (6) has the same structure as the right moving platform (2). The right moving platform (2) consists of a support platform (11), a side plate (15), a pull plate (17), a spring (18), a side limiting fixing plate (19), a light rod (21), and a light rod bracket (22). A light rod bracket (22) is vertically fixed at each end of the top side of the support platform (11). Two light rods (21) are installed between the two light rod brackets (22) from top to bottom. The upper light rod (21) has... From the inside out, each end is fitted with a pull plate (17), a side limiting fixing plate (19), a spring (18), and a side plate (15). The side limiting fixing plate (19) and the side plate (15) are fitted between two light rods (21). The side plate (15) is fixed by a nut. A positioning rod (13) and four positioning bosses (14) are fixed in the area at the top of the support platform (11) where the mold is placed. Four locking rods (23) are fixed on the side of the side limiting fixing plate (19).

2. The mold opening and closing mechanism for a blow molding machine according to claim 1, characterized in that: The frame (1) is a square frame structure formed by two support rails (7) and two connecting beams (8). Multiple guide wheels are evenly spaced on the top of the support rails (7). A telescopic cylinder mounting seat (9) is fixed above the middle of the connecting beams (8). Two positioning slide rods (10) are fixed between the two connecting beams (8).

3. The mold opening and closing mechanism for a blow molding machine according to claim 2, characterized in that: The bottom of the support platform (11) is fixed with two sliding sleeves (12), which are sleeved on the positioning slide rod (10).

4. The mold opening and closing mechanism for a blow molding machine according to claim 1, characterized in that: A hook (16) is vertically fixed to the middle of the side of the pull plate (17).

5. The mold opening and closing mechanism for a blow molding machine according to claim 1, characterized in that: A mold connecting plate (20) is fixed on the telescopic end of the telescopic cylinder (3).

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