Fractured plastic bottle blank taking device

Abstract

The utility model relates to the technical field of production of plastic bottle blanks, and particularly discloses a broken plastic bottle blank taking device which comprises a taking barrel, a first handle is arranged at one end of the taking barrel, a plurality of plate claws are evenly arranged on the side wall of the other end of the taking barrel along the circumference, and spikes inserted into the inner walls of bottle blanks are arranged at the ends of the plate claws. An ejector rod for pushing the plate claw to move outwards is arranged in the material taking barrel, a second handle is arranged at the end of the ejector rod, a receding hole is formed in the side wall of the material taking barrel, and the second handle extends out of the receding hole and is located on one side of the first handle; according to the material taking device, the bottle blanks are fixed by the spines through the second handle, so that the bottle blanks left in the forming cavity can be taken out, the material taking device is simple and rapid to use, the problem that an existing material taking tool is tedious in operation is solved, time is saved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle preform production, in particular to a device for taking out broken plastic bottle preforms. Background Art

[0002] Bottle preforms are the product of injection molding and serve as intermediates. They are then blow molded to become the final product. The preforms are formed by injection molding, where the raw material is filled into the mold's gun mold under specific temperature and pressure. The preforms are then formed under the working conditions of the injection molding machine. After injection molding, they become semi-finished intermediates, which are then blow molded to become the final product.

[0003] During the preform manufacturing process, some defective preforms break within the molding cavity. To prevent subsequent production disruptions, these broken preforms must be removed. Patent CN221775164U discloses a tool for removing broken preforms from plastic products. This tool requires first screwing a threaded rod into the inner wall of the broken preform to clamp it, then rotating a nut to remove the broken preform. This process is inefficient, impacting production efficiency. Utility Model Content

[0004] The utility model is aimed at the above-mentioned deficiencies in the prior art and provides a device for removing broken plastic preforms. The device fixes the preforms with spikes by a second handle, and the preforms remaining in the molding cavity can be removed. The device is simple and quick to use, solves the problem of complicated operation of the existing removing tools, saves time, and improves work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A device for retrieving broken plastic bottle blanks comprises a retrieving barrel, one end of which is provided with a first handle, a side wall of the other end of which is evenly provided with a plurality of claws along the circumference, the ends of the claws being provided with spikes for inserting into the inner wall of the bottle blank, a push rod for pushing the claws to move outward being provided in the retrieving barrel, the end of the push rod being provided with a second handle, a clearance hole being provided on the side wall of the retrieving barrel, the second handle extending from the clearance hole and being located on one side of the first handle.

[0007] Preferably, the diameter of the push rod gradually increases from one end where the second handle is provided to the other end.

[0008] Preferably, the lower end of the plate claw is pressed on the side wall of the push rod, and a supporting plate is provided on the side wall of the plate claw. A first spring is connected between the supporting plate and the inner wall of the material taking barrel.

[0009] Preferably, a positioning column for fixing the first spring is provided at the upper end of the plate claw.

[0010] Preferably, a limiting ring is provided at one end of the push rod away from the second handle.

[0011] Preferably, a relief groove is provided at one end of the ejector rod away from the second handle, and a second spring connected to the inside of the material taking cylinder is provided in the relief groove.

[0012] Preferably, the spikes are located at both ends of the top of the plate claw.

[0013] Preferably, a guide rod is horizontally provided in the material taking cylinder, and a guide hole cooperating with the guide rod is provided at the end of the ejector rod.

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

[0015] 1. The present utility model extends the material taking cylinder into the preform, and uses the second handle to fix the preform with the spikes, so that the preform remaining in the forming cavity can be taken out. The use is simple and fast, solving the problem of cumbersome operation of the existing material taking tools, saving time and improving work efficiency.

[0016] 2. The present utility model can automatically reset the ejector rod and the plate claw through the spring, improving the convenience of use.

[0017] 3. The present utility model fixes the inner wall of the preform at multiple points through the spikes, and can firmly fix the preform, ensuring the reliability of preform taking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the plate claw;

[0020] Figure 3 is a sectional view of the present utility model during use;

[0021] Figure 4 is Figure 3 an enlarged structural diagram of part A of

[0022] In the figure: 1 - material taking cylinder; 101 - first handle; 102 - relief hole; 103 - guide rod; 2 - plate claw; 201 - spike; 202 - positioning column; 203 - support plate; 3 - ejector rod; 301 - second handle; 302 - limit ring; 303 - relief groove; 304 - guide hole; 4 - preform; 5 - first spring; 6 - second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, a device for removing broken plastic preforms 4 includes a material removal barrel 1. The material removal barrel 1 is a cylindrical cavity structure with closed ends. A first handle 101 is provided at one end of the material removal barrel 1. A plurality of plate claws 2 are evenly arranged along the circumference on the side wall of the other end of the material removal barrel 1. The plate claws 2 are provided in two circles, and each circle has at least two plate claws 2. Figure 2 As shown, the outer end of the plate claw 2 (the end located outside the material removal barrel 1) is provided with a spike 201 that is inserted into the inner wall of the bottle blank 4. Since the inner cavity of the bottle blank 4 is an arc structure, the spike 201 is located at the top ends of the plate claw 2 to ensure that the spike 201 can penetrate the side wall of the bottle blank 4.

[0025] like Figure 3 As shown, a push rod 3 is provided in the material taking barrel 1 to push the plate claws 2 to move outward. The push rod 3 can push the plate claws 2 outward so that the spikes 201 penetrate the inner wall of the bottle blank 4. A second handle 301 is provided at the end of the push rod 3. A clearance hole 102 is provided on the side wall of the material taking barrel 1. The second handle 301 extends from the clearance hole 102 and is located on one side of the first handle 101.

[0026] The diameter of the push rod 3 gradually increases from one end where the second handle 301 is set to the other end. By grasping the first handle 101 and the second handle 301 and moving the second handle 301 toward the first handle 101, the push rod 3 can be pulled to move. As the diameter of the push rod 3 changes, the push rod 3 can push the plate claw 2 outward.

[0027] The lower end of the plate claw 2 is pressed on the side wall of the top rod 3, and a supporting plate 203 is provided on the side wall of the plate claw 2. Figure 4 As shown, a first spring 5 is connected between the support plate 203 and the inner wall of the material taking barrel 1. The first spring 5 can ensure that the plate claw 2 is pressed on the push rod 3. At the same time, after taking the material, the plate claw 2 can be reset under the action of the first spring 5, making it convenient to remove the bottle blank 4 from the material taking barrel 1.

[0028] In order to ensure the reliability of the first spring 5 , a positioning column 202 for fixing the first spring 5 is provided at the upper end of the plate claw 2 .

[0029] A guide rod 103 is transversely provided in the material taking barrel 1, and a guide hole 304 is provided at the end of the push rod 3 to cooperate with the guide rod 103, so as to ensure that the push rod 3 can slide horizontally, thereby ensuring stable use and firm structure.

[0030] One end of the ejector rod 3 far from the second handle 301 is provided with a limit ring 302.

[0031] One end of the ejector rod 3 far from the second handle 301 is provided with a relief groove 303. A second spring 6 connected to the inside of the blank taking cylinder 1 is arranged in the relief groove 303. The ejector rod 3 is pulled by the spring. After use, when the second handle 301 is released, the second spring 6 can pull the ejector rod 3 back to its original position.

[0032] As Figure 3 shown, during use, the blank taking cylinder 1 is extended into the preform 4. The first handle 101 and the second handle 301 are grasped, so that the second handle 301 moves closer to the first handle 101. The second handle 301 pulls the ejector rod 3 to move. The ejector rod 3 pushes the pawl 2 to move outwards, so that the spikes 201 penetrate into the side wall of the preform 4. The blank taking cylinder 1 is pulled outwards. The preform 4 can be taken out of the forming cavity through the spikes 201. After the preform 4 is taken out, the second handle 301 is released. Under the action of the second spring 6, the ejector rod 3 returns to its original position. At the same time, under the action of the first spring 5, the pawl 2 returns to its original position. The spikes 201 are disengaged from the side wall of the preform 4, and the preform 4 is taken off the blank taking cylinder 1.

[0033] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A device for picking up fractured plastic preforms, characterized in that: It includes a material taking barrel, one end of which is provided with a first handle, and a plurality of claws are evenly arranged along the circumference on the side wall of the other end of the material taking barrel, the ends of the claws are provided with spikes inserted into the inner wall of the bottle blank, a push rod is provided in the material taking barrel to push the claws to move outward, the end of the push rod is provided with a second handle, and a clearance hole is provided on the side wall of the material taking barrel, the second handle extends from the clearance hole and is located on one side of the first handle.

2. The blanking device for fractured plastic preforms according to claim 1, wherein: The diameter of the push rod gradually increases from one end where the second handle is provided to the other end.

3. A blanking device for fractured plastic preforms according to claim 2, characterized in that: The lower end of the plate claw is pressed on the side wall of the push rod, and a supporting plate is provided on the side wall of the plate claw. A first spring is connected between the supporting plate and the inner wall of the material taking barrel.

4. The blanking device for fractured plastic preforms according to claim 3, characterized in that: The upper end of the plate claw is provided with a positioning column for fixing the first spring.

5. The blanking device for fractured plastic preforms according to claim 2, characterized in that: A limiting ring is provided on one end of the push rod away from the second handle.

6. The blanking device for fractured plastic preforms according to claim 1, characterized in that: A clearance groove is provided at one end of the push rod away from the second handle, and a second spring connected to the inside of the material taking barrel is provided in the clearance groove.

7. The blanking device for fractured plastic preforms according to claim 1, characterized in that: The spikes are located at both ends of the top of the plate claw.

8. The blanking device for fractured plastic preforms according to claim 1, characterized in that: A guide rod is transversely arranged in the material taking cylinder, and a guide hole is provided at the end of the push rod to match the guide rod.

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