Bottle opening positioning mechanism for bottle blowing machine

Abstract

The utility model relates to the technical field of bottle blowing machines, in particular to a bottle opening positioning mechanism for a bottle blowing machine, which comprises a first mould and a second mould, a clamping groove is arranged on the inner wall of the inner top of the first mould, and a fixing mechanism for fixing and positioning a bottle blank is arranged between the top of the first mould and the top of the second mould. The top face of the first mold is provided with a control piece used for controlling opening and closing of the fixing mechanism, an embedding groove is formed in the inner wall of the inner top of the second mold, the fixing mechanism comprises a semi-ring matched with the embedding groove, a groove is formed in the position, corresponding to the clamping groove, of the inner wall of the semi-ring, and elastic pieces fixed to the first mold in an embedded mode are arranged at the two ends of the semi-ring. According to the utility model, under the action of the two elastic pieces and the semi-ring, the bottle blank can be fixed on the mold I firstly, and the situation that the bottle blank falls off or inclines in the moving process of the mold I is prevented, so that the precise positioning of the bottle opening of the bottle blank can be realized, and the production efficiency of the bottle is improved.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, specifically a bottle mouth positioning mechanism for blow molding machines. Background Technology

[0002] A blow molding machine is a two-step fully automatic stretch blow molding equipment. It is a machine that blows bottles. In the simplest terms, it is a machine that can blow plastic granules (softened into liquid) or preforms into bottles through certain processes. Currently, most blow molding machines are still two-step blow molding machines, which means that the plastic raw materials must first be made into preforms and then blown. Nowadays, environmentally friendly plastics such as PET are commonly used.

[0003] Currently, in the process of blowing plastic bottles, the worker first clamps the retaining ring at the bottle neck into the slot of one of the molds in the blow molding machine. Then, the bottle neck is positioned and fixed by closing the two molds, aligning the bottle neck with the air outlet of the blowing mechanism. Finally, the blowing mechanism blows air into the bottle neck, so that the bottle neck is formed into a complete bottle by the action of the mold. However, when the retaining ring at the bottle neck is clamped into the slot of one of the molds, the movement of the mold may cause the bottle neck to fall out of the mold, resulting in the bottle neck being deformed or unable to be blown into the bottle neck for shaping. Utility Model Content

[0004] The purpose of this invention is to provide a bottle mouth positioning mechanism for a blow molding machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bottle mouth positioning mechanism for a blow molding machine includes a mold 1 and a mold 2. The inner top wall of the mold 1 is provided with a slot. A fixing mechanism for fixing and positioning a preform is provided between the tops of the mold 1 and the mold 2. A control component for controlling the opening and closing of the fixing mechanism is provided on the top surface of the mold 1. An embedding groove is provided on the inner top wall of the mold 2.

[0007] The fixing mechanism includes a semi-ring that fits into the embedding groove. The inner wall of the semi-ring has a groove corresponding to the slot. Both ends of the semi-ring are provided with elastic elements that are embedded and fixed to the mold.

[0008] Furthermore, the elastic element includes a sleeve that is embedded and fixed to the mold, a rod that is slidably sleeved inside the sleeve and fixedly connected to the semi-ring, and a compression spring that is fixedly connected between the rod and the sleeve at the corresponding position.

[0009] Furthermore, the end of the sleeve rod away from the semi-ring is fixedly connected to a connecting rod that slides through the sleeve at the corresponding position, the connecting rod slides through the mold, and a connecting plate is fixedly connected between one end of the two connecting rods.

[0010] Furthermore, a sealing gasket is fixedly connected to the outer wall of the semi-ring.

[0011] Furthermore, the semi-ring has an Ω-like structure.

[0012] Furthermore, a rectangular groove is provided on the top of one side of the mold, and the connecting plate and the connecting rod are located in the rectangular groove.

[0013] Furthermore, the top surface of the mold has two symmetrical movable holes that are connected to a rectangular groove. The control component includes two levers that are rotatably connected in the movable holes located at corresponding positions. A fixing plate is fixedly connected between the top ends of the two levers.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By using two elastic elements and a semi-ring, the preform can be fixed on mold one, preventing the preform from falling or tilting during the movement of mold one. This allows for precise positioning of the preform's neck and improves bottle production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the position of the fixing mechanism in this utility model;

[0018] Figure 3 This is a cross-sectional view of the mold in this utility model;

[0019] Figure 4 This is a schematic diagram of mold two in this utility model;

[0020] Figure 5 This is a schematic diagram of the fixing mechanism in this utility model;

[0021] Figure 6 This is a schematic diagram of the control component structure in this utility model.

[0022] In the diagram: 1. Mold 1; 11. Slot; 12. Rectangular groove; 13. Movable hole; 2. Mold 2; 21. Embedded groove; 3. Fixing mechanism; 31. Semi-ring; 32. Groove; 33. Elastic element; 34. Connecting rod; 35. Connecting plate; 36. Sealing gasket; 4. Control element; 41. Paddle plate; 42. Fixing plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 In this embodiment of the present invention, a bottle mouth positioning mechanism for a blow molding machine includes a first mold 1 and a second mold 2. The inner top wall of the first mold 1 is provided with a slot 11. A fixing mechanism 3 for fixing and positioning the preform is provided between the tops of the first mold 1 and the second mold 2. A control element 4 for controlling the opening and closing of the fixing mechanism 3 is provided on the top surface of the first mold 1. An embedding groove 21 is provided on the inner top wall of the second mold 2. The fixing mechanism 3 includes a semi-ring 31 that fits into the embedding groove 21. A groove 32 is provided on the inner wall of the semi-ring 31 corresponding to the slot 11. Both ends of the semi-ring 31 are provided with elastic elements 33 that are embedded and fixed to the first mold 1.

[0025] Specifically, firstly, mold 1 and mold 2 are installed on the blow molding machine using existing technology, with mold 1 positioned closer to the operator. After installation and adjustment, when the operator places the preform into mold 1, the half-ring 31 is first separated from mold 1 using control component 4. Then, the preform is placed between mold 1 and half-ring 31, with half of the retaining ring on the preform engaged in the retaining groove 11. Then, control component 4 is released, and half-ring 31 contacts mold 1 under the elastic action of the two elastic components 33, with the other half of the retaining ring on the preform engaged in the groove 32. Then, the preform is blown into the blow molding machine... The cylinder operates to merge mold 1 and mold 2, and blows air into the preform to increase the pressure inside the preform. Under the action of the inner cavities of mold 1 and mold 2, the preform is formed into a complete bottle. Then, mold 1 and mold 2 are separated. At this time, the operator can use the control component 4 to separate the semi-ring 31 from mold 1. Then, the operator can take out the formed bottle. This device, through the action of two elastic components 33 and semi-ring 31, can fix the preform on mold 1 first, which can prevent the preform from falling or tilting during the movement of mold 1. Therefore, it can achieve precise positioning of the bottle mouth of the preform and improve the production efficiency of the bottle.

[0026] Example 1

[0027] like Figure 5As shown, in this embodiment, the elastic element 33 includes a sleeve that is embedded and fixed to the mold 1. A sleeve rod that is fixedly connected to the semi-ring 31 is slidably sleeved inside the sleeve. A compression spring is fixedly connected between the sleeve rod and the sleeve at the corresponding position. A connecting rod 34 that slides through the sleeve at the corresponding position is fixedly connected to the end of the sleeve rod away from the semi-ring 31. The connecting rod 34 slides through the mold 1. A connecting plate 35 is fixedly connected between one end of the two connecting rods 34. A sealing gasket 36 is fixedly connected to the outer wall of the semi-ring 31. The semi-ring 31 has an Ω-like structure.

[0028] In this embodiment, the movement of the connecting plate 35 can control the two connecting rods 34 to drive the corresponding sleeve rods to move within the sleeve. The simultaneous movement of the two sleeve rods can control the contact and separation between the semi-ring 31 and the mold 1, thereby making it easier to securely hold the preform between the semi-ring 31 and the mold 1, preventing it from falling or tilting. The sealing gasket 36 can increase the sealing between the mold 1 and the mold 2. By designing the semi-ring 31 into a structure similar to Ω, it is easy to connect the semi-ring 31 with the two elastic elements 33.

[0029] Example 2

[0030] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, a rectangular groove 12 is provided on the top of one side of the mold 1. The connecting plate 35 and the connecting rod 34 are located in the rectangular groove 12. Two symmetrical movable holes 13 are provided through the top surface of the mold 1. The movable holes 13 are connected to the rectangular groove 12. The control component 4 includes two levers 41 that are rotatably connected in the movable holes 13 located at corresponding positions. A fixing plate 42 is fixedly connected between the top ends of the two levers 41.

[0031] In this embodiment, according to Figure 1 or Figure 2 As can be seen, one end of the two dial plates 41 is located on the outer side of the connecting plate 35. Therefore, by moving the fixing plate 42, the two dial plates 41 can be rotated. The two rotating dial plates 41 can push the connecting plate 35 to move into the rectangular groove 12, thereby causing the semi-ring 31 to separate from the mold 1.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bottle neck positioning mechanism for a blow molding machine, comprising a first mold (1) and a second mold (2), wherein the inner top inner wall of the first mold (1) is provided with a slot (11), characterized in that, A fixing mechanism (3) for fixing and positioning the preform is provided between the top of the first mold (1) and the second mold (2). A control component (4) for controlling the opening and closing of the fixing mechanism (3) is provided on the top surface of the first mold (1). An embedding groove (21) is provided on the inner top inner wall of the second mold (2). The fixing mechanism (3) includes a semi-ring (31) that fits into the embedding groove (21). The inner wall of the semi-ring (31) is provided with a groove (32) corresponding to the slot (11). Both ends of the semi-ring (31) are provided with elastic elements (33) that are embedded and fixed to the mold (1).

2. The bottle neck positioning mechanism for a blow molding machine according to claim 1, characterized in that, The elastic element (33) includes a sleeve that is embedded and fixed to the mold (1), a sleeve rod that is slidably sleeved inside the sleeve and fixedly connected to the half ring (31), and a compression spring that is fixedly connected between the sleeve rod and the sleeve at the corresponding position.

3. The bottle neck positioning mechanism for a blow molding machine according to claim 2, characterized in that, The end of the sleeve rod away from the semi-ring (31) is fixedly connected to a connecting rod (34) that slides through the sleeve at the corresponding position. The connecting rod (34) slides through the mold (1). A connecting plate (35) is fixedly connected between one end of the two connecting rods (34).

4. The bottle neck positioning mechanism for a blow molding machine according to claim 3, characterized in that, A sealing gasket (36) is fixedly connected to the outer wall of the semi-ring (31).

5. The bottle neck positioning mechanism for a blow molding machine according to claim 3, characterized in that, The semi-ring (31) has an Ω-like structure.

6. The bottle neck positioning mechanism for a blow molding machine according to claim 3, characterized in that, A rectangular groove (12) is provided on the top of one side of the mold (1), and the connecting plate (35) and the connecting rod (34) are located in the rectangular groove (12).

7. The bottle neck positioning mechanism for a blow molding machine according to claim 6, characterized in that, The top surface of the mold (1) has two symmetrical movable holes (13) that are connected to the rectangular groove (12). The control component (4) includes two levers (41) that are rotatably connected in the movable holes (13) located at corresponding positions. A fixing plate (42) is fixedly connected between the top ends of the two levers (41).

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