Cooling equipment for plastic bottle blow molding

By introducing a rotating device and sealing structure into the plastic bottle cooling equipment, the cooling problem of fixed nozzle position is solved, and the cooling without dead corners and the improvement of sealing is achieved, and the practicality and stability of the equipment are improved.

CN223071924UActive Publication Date: 2025-07-08HANGZHOU ZHENXIN PACKAGING CO LTD
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Patent Information

Application Number
CN202422182349.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2025-07-08
Estimated Expiration
2034-09-06

AI Technical Summary

Technical Problem

When existing plastic bottle cooling equipment is used for water cooling, the fixed nozzle position causes one side of the plastic bottle to be completely cooled, and the cooling effect is not ideal, which affects the practicality of the device.

Method used

A cooling device including a rotating device is designed. By connecting the sleeve, bearing, sealing gasket and gear mechanism, the nozzle can rotate with the outlet pipe, achieving blind spot cooling of the plastic bottle, and reducing the probability of water flow leakage through the sealing structure, improving the sealing and stability of the device.

Benefits of technology

It realizes all-round cooling of plastic bottles, improves the practicality and sealing of the equipment, reduces the probability of water leakage, and enhances the stability and simplicity of operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of plastic bottle production, and discloses a plastic bottle blow molding cooling device which comprises two symmetrical mounting plates, a conveying belt is jointly mounted on the two close side walls of the two mounting plates, and a mounting box with a U-shaped cross section is jointly mounted on the upper surfaces of the two mounting plates. A connecting pipe penetrates through the upper surface of the mounting box in the horizontal direction, a water outlet pipe is mounted on the bottom surface of the connecting pipe, a plurality of nozzles are mounted on the water outlet pipe, and a rotating device for rotating the water outlet pipe is mounted on the connecting pipe and the water outlet pipe together. The device has the effect of improving the practicability.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle production, in particular to a cooling device for plastic bottle blow molding. Background Technique

[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene and added with a variety of organic solvents. Plastic bottles are widely made of polyester (PET), polyethylene (PE), and polypropylene (PP) as raw materials. After adding the corresponding organic solvents and being heated at high temperature, they are plastic containers formed by blow molding, extrusion blow molding, or injection molding through plastic molds. They are mainly used for disposable plastic packaging containers for liquids or solids such as beverages, foods, pickles, honey, dried fruits, edible oils, and agricultural and veterinary drugs. Plastic bottles have the characteristics of not being easily broken, low cost, high transparency, and food-grade raw materials. During the production process of plastic bottles, blow molding is required, and after blow molding, cooling is required. A cooling device is used during the cooling process.

[0003] In view of the above related technologies, the inventor believes that there are the following defects: When the existing equipment cools plastic bottles, it mostly cools them through water cooling. However, during this process, water cooling sprays water through a nozzle to cool the plastic bottle. During this process, since the position of the nozzle is fixed, the nozzle cannot cool the side directly facing the plastic bottle, and the cooling effect of the other surfaces is not ideal, thus reducing the practicability of the device. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a cooling device for plastic bottle blow molding.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A cooling device for plastic bottle blow molding includes two symmetrically arranged mounting plates. A conveyor belt is commonly installed on the two side walls of the two mounting plates that are close to each other. An installation box with a U-shaped cross-section is commonly installed on the upper surfaces of the two mounting plates. A connecting pipe is penetrated through the upper surface of the installation box in the horizontal direction. A water outlet pipe is installed on the bottom surface of the connecting pipe. A plurality of nozzles are installed on the water outlet pipe. A rotating device for rotating the water outlet pipe is commonly installed on the connecting pipe and the water outlet pipe.

[0006] By adopting the above technical solution, when the staff needs to cool the plastic bottles completed by blow molding, the staff places the plastic bottles on the conveyor belt. Subsequently, the plastic bottles are transported into the installation box through the conveyor belt. At this time, the staff externally connects a water source through the connecting pipe. Subsequently, the water flows through the connecting pipe into the water outlet pipe and the nozzle, and then the nozzle cools the plastic bottles in the installation box (this utility model is only used to solve the problem of the rotation of the water outlet pipe, so there is no excessive explanation for the collection of waste water). During this process, the staff can start the rotating device to rotate the water outlet pipe, and then the nozzle follows the water outlet pipe to rotate, so as to cool the plastic bottles without dead angles. Thus, the practicability of the device is improved.

[0007] Further, the rotating device includes a connecting sleeve fixedly arranged on the outer wall of the water outlet pipe and a bearing fixedly arranged on the outer wall of the connecting pipe. One end of the connecting sleeve away from the water outlet pipe is sleeved on the bearing and fixed to the bearing, and the bearing is fixed to the connecting pipe.

[0008] By adopting the above technical solution, when the staff needs to rotate the water outlet pipe, the staff needs to rotate the connecting sleeve, and then the water outlet pipe follows the connecting sleeve to rotate, so that the nozzle follows the water outlet pipe to rotate synchronously, and then the plastic bottles are cooled without dead angles. During this process, when the connecting sleeve rotates, the outer side of the bearing rotates following the connecting sleeve under the action of the connecting sleeve, thus improving the practicability of the device.

[0009] Further, a connecting piece is sleeved at the bottom end of the connecting pipe. One end of the connecting piece away from the connecting pipe is sleeved on the outer wall of the water outlet pipe and is rotatably connected to the water outlet pipe.

[0010] By adopting the above technical solution, when the water outlet pipe rotates following the connecting sleeve, relative rotation occurs between the water outlet pipe and the connecting piece. During this process, the connecting piece seals between the connecting pipe and the water outlet pipe, thus reducing the probability of water leakage when the water outlet pipe rotates, and improving the sealing performance of the device.

[0011] Further, sealing gaskets are fixedly arranged on the upper surface and the bottom surface of the connecting piece, and the connecting pipe and the water outlet pipe respectively penetrate through the adjacent sealing gaskets.

[0012] By adopting the above technical solution, the sealing gaskets reduce the probability of water seeping out of the connecting piece, thus further improving the sealing performance of the device.

[0013] Further, two symmetrically arranged annular grooves are formed on the inner wall of the connecting piece. Annular blocks are rotatably arranged in the two annular grooves, and the two annular blocks are respectively fixed to the connecting pipe and the water outlet pipe.

[0014] By adopting the above technical solution, the annular block limits the connecting pipe and the water outlet pipe, thereby reducing the probability of the connecting pipe and the water outlet pipe separating from the connecting piece, and thus improving the stability of the device.

[0015] Furthermore, a motor is fixedly arranged on the upper surface of the installation box in the horizontal direction. The output shaft of the motor penetrates through the installation box and extends into the installation box. A first gear is fixedly arranged at the end of the output shaft of the motor. A second gear is sleeved on the outer wall of the connecting sleeve. The second gear is fixedly connected with the connecting sleeve, and the second gear meshes with the first gear.

[0016] By adopting the above technical solution, when the staff needs to rotate the connecting sleeve, the staff needs to start the motor, so that the output shaft of the motor rotates, and thus the first gear rotates synchronously with the output shaft of the motor under the action of the output shaft of the motor. Then, the second gear rotates under the action of the first gear, so that the connecting sleeve rotates under the action of the second gear, thereby reducing the difficulty for the staff to rotate the connecting sleeve and thus reducing the working difficulty of the staff.

[0017] Furthermore, the end of the water outlet pipe far away from the connecting pipe is in an inclined state.

[0018] By adopting the above technical solution, the inclined state of the end of the water outlet pipe far away from the connecting pipe reduces the probability of the water outlet pipe colliding with the plastic bottles on the conveyor belt when the water outlet pipe rotates, thereby improving the stability of the device.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. In this application, when the staff needs to cool the blow-molded plastic bottles, the staff places the plastic bottles on the conveyor belt. Subsequently, the conveyor belt transports the plastic bottles into the installation box. At this time, the staff externally connects a water source through the connecting pipe. Then, the water flows through the connecting pipe into the water outlet pipe and the nozzle, so that the nozzle cools the plastic bottles in the installation box (the utility model only focuses on solving the problem of the rotation of the water outlet pipe, so there is no excessive explanation on the collection of waste water). During this process, the staff can start the rotating device to rotate the water outlet pipe, so that the nozzle rotates with the water outlet pipe, thereby cooling the plastic bottles without dead angles. Thus, the practicability of the device is improved;

[0021] 2. In this application, when the staff needs to rotate the water outlet pipe, the staff needs to rotate the connecting sleeve, so that the water outlet pipe rotates with the connecting sleeve, and thus the nozzle rotates synchronously with the water outlet pipe, thereby cooling the plastic bottles without dead angles. During this process, when the connecting sleeve rotates, the outer side of the bearing rotates with the connecting sleeve under the action of the connecting sleeve, thereby improving the practicability of the device;

[0022] 3. In this application, when the outlet pipe rotates following the connecting sleeve, the outlet pipe and the connecting member rotate relative to each other. During this process, the connecting member seals between the connecting pipe and the outlet pipe, thereby reducing the probability of water leakage when the outlet pipe rotates, and thus improving the sealing performance of the device. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of an embodiment of the present utility model;

[0024] Figure 2 is the sectional structural schematic diagram of the installation box in an embodiment of the present utility model;

[0025] Figure 3 is the structural schematic diagram of the rotating device in an embodiment of the present utility model;

[0026] Figure 4 is the sectional structural schematic diagram of the rotating device in an embodiment of the present utility model;

[0027] Figure 5 is an embodiment of the present utility model Figure 4 The sectional structural schematic diagram of A in.

[0028] In the figure: 1. Installation plate; 11. Conveyor belt; 12. Installation box; 13. Connecting pipe; 14. Outlet pipe; 15. Sprinkler head; 2. Rotating device; 21. Connecting sleeve; 22. Bearing; 3. Connecting member; 4. Sealing gasket; 5. Annular groove; 51. Annular block; 6. Motor; 61. First gear; 62. Second gear. Detailed Embodiment

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] Such as Figures 1-5As shown in the figure, an embodiment of the present application discloses a cooling device for plastic bottle blow molding, including a mounting plate 1, a conveyor belt 11, a mounting box 12, a connecting pipe 13, a water outlet pipe 14, a nozzle 15, a rotating device 2, a connecting piece 3, a motor 6, a first gear 61 and a second gear 62. The mounting plate 1 is a rectangular plate structure, and there are two mounting plates 1 which are symmetrical to each other. The conveyor belt 11 is installed on two mutually adjacent side walls of the two mounting plates 1 for transporting plastic bottles. The cross-section of the mounting box 12 is U-shaped, and the mounting box 12 is installed on the upper surfaces of the two mounting plates 1. The connecting pipe 13 is a circular tubular structure, and the connecting pipe 13 is arranged through the upper surface of the mounting box 12 in the horizontal direction. The water outlet pipe 14 is a circular tubular structure, and the water outlet pipe 14 is installed on the bottom surface of the connecting pipe 13. A plurality of nozzles 15 are installed on the water outlet pipe 14 for spraying water flow.

[0031] When the staff needs to cool the blow-molded plastic bottles, the staff places the plastic bottles on the conveyor belt 11. Subsequently, the plastic bottles are transported into the mounting box 12 through the conveyor belt 11. At this time, the staff externally connects a water source through the connecting pipe 13. Subsequently, the water flow flows through the connecting pipe 13 into the water outlet pipe 14 and the nozzles 15, so that the nozzles 15 cool the plastic bottles in the mounting box 12 (the present utility model only focuses on solving the problem of the rotation of the water outlet pipe 14, so there is no excessive explanation for the collection of waste water). During this process, the staff can start the rotating device 2 to rotate the water outlet pipe 14, so that the nozzles 15 rotate with the water outlet pipe 14, thereby performing a dead-angle-free cooling treatment on the plastic bottles. Thus, the practicability of the device is improved.

[0032] The rotating device 2 is installed on the connecting pipe 13 and the water outlet pipe 14 for rotating the water outlet pipe 14. The rotating device 2 includes a connecting sleeve 21 and a bearing 22. The connecting sleeve 21 is fixedly arranged on the outer wall of the water outlet pipe 14, the bearing 22 is fixedly arranged on the outer wall of the connecting pipe 13, one end of the connecting sleeve 21 far from the water outlet pipe 14 is sleeved on the bearing 22 and fixed to the bearing 22, and the bearing 22 is fixed to the connecting pipe 13.

[0033] When the staff needs to rotate the water outlet pipe 14, the staff needs to rotate the connecting sleeve 21, so that the water outlet pipe 14 rotates with the connecting sleeve 21, and then the nozzles 15 rotate synchronously with the water outlet pipe 14, thereby performing a dead-angle-free cooling treatment on the plastic bottles. During this process, when the connecting sleeve 21 rotates, the outer side of the bearing 22 rotates with the connecting sleeve 21 under the action of the connecting sleeve 21, thus improving the practicability of the device.

[0034] The connecting piece 3 is sleeved on the bottom end of the connecting pipe 13, and one end of the connecting piece 3 far from the connecting pipe 13 is sleeved on the outer wall of the water outlet pipe 14 and rotatably connected to the water outlet pipe 14.

[0035] When the water outlet pipe 14 rotates following the connecting sleeve 21, the water outlet pipe 14 rotates relative to the connecting member 3. During this process, the connecting member 3 seals between the connecting pipe 13 and the water outlet pipe 14, thereby reducing the probability of water leakage when the water outlet pipe 14 rotates, and thus improving the sealing performance of the device.

[0036] To improve the sealing performance of the device, sealing gaskets 4 are fixedly arranged on both the upper surface and the bottom surface of the connecting member 3, and the connecting pipe 13 and the water outlet pipe 14 respectively penetrate through the adjacent sealing gaskets 4. The sealing gaskets 4 reduce the probability of water flow inside the connecting member 3 seeping out of the connecting member 3, thereby further improving the sealing performance of the device.

[0037] To improve the stability of the device, two symmetrically arranged annular grooves 5 are formed on the inner wall of the connecting member 3, and annular blocks 51 are rotatably arranged in the two annular grooves 5. The two annular blocks 51 are respectively fixed to the connecting pipe 13 and the water outlet pipe 14. The annular blocks 51 limit the connecting pipe 13 and the water outlet pipe 14, thereby reducing the probability of the connecting pipe 13 and the water outlet pipe 14 separating from the connecting member 3, and thus improving the stability of the device.

[0038] The motor 6 is fixedly arranged on the upper surface of the mounting box 12 in the horizontal direction, and the axis of its output shaft is vertical. The output shaft of the motor 6 penetrates through the mounting box 12 and extends into the mounting box 12. The first gear 61 is fixedly arranged at the end of the output shaft of the motor 6, and its axis coincides with the axis of the output shaft of the motor 6. The second gear 62 is sleeved on the outer wall of the connecting sleeve 21, the second gear 62 is fixed to the connecting sleeve 21, and the second gear 62 meshes with the first gear 61.

[0039] When the staff needs to rotate the connecting sleeve 21, the staff needs to start the motor 6, thereby causing the output shaft of the motor 6 to rotate, so that the first gear 61 rotates synchronously with the output shaft of the motor 6 under the action of the output shaft of the motor 6. Then, the second gear 62 rotates under the action of the first gear 61, so that the connecting sleeve 21 rotates under the action of the second gear 62, thereby reducing the difficulty for the staff to rotate the connecting sleeve 21, and thus reducing the work difficulty of the staff.

[0040] To improve the stability of the device, the end of the water outlet pipe 14 far from the connecting pipe 13 is in an inclined state. The inclined state of the end of the water outlet pipe 14 far from the connecting pipe 13 reduces the probability of the water outlet pipe 14 colliding with the plastic bottles on the conveyor belt 11 when the water outlet pipe 14 rotates, and thus improves the stability of the device.

[0041] The usage principle of a cooling device for plastic bottle blow molding in this embodiment is as follows: When the staff needs to cool the blow-molded plastic bottles, the staff places the plastic bottles on the conveyor belt 11. Subsequently, the conveyor belt 11 transports the plastic bottles into the installation box 12. At this time, the staff externally connects a water source through the connecting pipe 13. Subsequently, the water flows through the connecting pipe 13 into the water outlet pipe 14 and the nozzle 15, so that the nozzle 15 cools the plastic bottles in the installation box 12 (this utility model is only used to solve the problem of the rotation of the water outlet pipe 14, so there is no excessive explanation for the collection of waste water). During this process, the staff can start the rotating device 2 to rotate the water outlet pipe 14, so that the nozzle 15 rotates following the water outlet pipe 14. At this time, the staff needs to start the motor 6, so that the output shaft of the motor 6 rotates, so that the first gear 61 rotates synchronously with the output shaft of the motor 6 under the action of the output shaft of the motor 6. Then, the second gear 62 rotates under the action of the first gear 61, so that the connecting sleeve 21 rotates under the action of the second gear 62, so that the water outlet pipe 14 rotates following the connecting sleeve 21, so that the nozzle 15 rotates synchronously with the water outlet pipe 14, so as to perform dead-angle-free cooling treatment on the plastic bottles, thus improving the practicability of the device.

[0042] The above is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A cooling device for plastic bottle blow molding, comprising two symmetrically arranged mounting plates (1), characterized in that: On two side walls of the two mounting plates (1) that are close to each other, a conveyor belt (11) is commonly installed. On the upper surfaces of the two mounting plates (1), a mounting box (12) with a U-shaped cross-section is commonly installed. A connecting pipe (13) is penetratively arranged on the upper surface of the mounting box (12) in the horizontal direction. A water outlet pipe (14) is installed on the bottom surface of the connecting pipe (13). A plurality of spray nozzles (15) are installed on the water outlet pipe (14). A rotating device (2) for rotating the water outlet pipe (14) is commonly installed on the connecting pipe (13) and the water outlet pipe (14).

2. The cooling device for plastic bottle blow molding according to claim 1, characterized in that: The rotating device (2) includes a connecting sleeve (21) fixedly arranged on the outer wall of the water outlet pipe (14) and a bearing (22) fixedly arranged on the outer wall of the connecting pipe (13). One end of the connecting sleeve (21) far from the water outlet pipe (14) is sleeved on the bearing (22) and is fixed to the bearing (22). The bearing (22) is fixed to the connecting pipe (13).

3. The cooling device for plastic bottle blow molding according to claim 2, characterized in that: A connecting piece (3) is sleeved on the bottom end of the connecting pipe (13). One end of the connecting piece (3) far from the connecting pipe (13) is sleeved on the outer wall of the water outlet pipe (14) and is rotatably connected to the water outlet pipe (14).

4. The cooling device for plastic bottle blow molding according to claim 3, characterized in that: Sealing gaskets (4) are fixedly arranged on both the upper surface and the bottom surface of the connecting piece (3). The connecting pipe (13) and the water outlet pipe (14) respectively penetrate through the adjacent sealing gaskets (4).

5. The cooling device for plastic bottle blow molding according to claim 3, characterized in that: Two symmetric annular grooves (5) are formed on the inner wall of the connecting piece (3). Annular blocks (51) are rotatably arranged in the two annular grooves (5). The two annular blocks (51) are respectively fixed to the connecting pipe (13) and the water outlet pipe (14).

6. The cooling device for plastic bottle blow molding according to claim 2, characterized in that: A motor (6) is fixedly arranged on the upper surface of the mounting box (12) in the horizontal direction. The output shaft of the motor (6) penetrates through the mounting box (12) and extends into the mounting box (12). A first gear (61) is fixedly arranged at the end of the output shaft of the motor (6). A second gear (62) is sleeved on the outer wall of the connecting sleeve (21). The second gear (62) is fixed to the connecting sleeve (21). The second gear (62) meshes with the first gear (61).

7. The cooling device for plastic bottle blow molding according to claim 1, characterized in that: One end of the water outlet pipe (14) far from the connecting pipe (13) is in an inclined state.