Cooling device of rotary bottle blowing machine

Abstract

The utility model discloses a cooling device of a rotary bottle blowing machine, which relates to the technical field of bottle blowing machines, and comprises a mould, a hydraulic rod, an air pump and a refrigerating device, an air blowing cooling pipe is arranged above the mould, a positioning cylinder is arranged at the top of the air blowing cooling pipe, an air outlet is fixedly connected with the top of the positioning cylinder, and the air outlet is communicated with the air pump. One side of the positioning cylinder is fixedly connected with a ventilation cooling hose, the blowing cooling pipe comprises an air outlet pipe, the outer wall of the air outlet pipe is fixedly sleeved with a built-in sleeve, and the outer wall of the built-in sleeve is movably sleeved with a sealing sleeve. According to the cooling device, the ventilation cooling hose, the positioning cylinder, the sealing sleeve, the built-in sleeve, the reset spring, the external air outlet groove and the built-in air outlet groove are used in cooperation, so that the device can cool the inner wall and the outer wall of a bottle body at the same time, the cooling efficiency is improved, and the situation that the quality of the bottle body is affected due to uneven cooling of the whole bottle body is avoided; and the problem of uneven stress may occur.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blowing machines, in particular to a cooling device of a rotary bottle blowing machine. Background Art

[0002] A blow molding machine is a device that uses a blow molding process to make plastic particles into hollow containers. Currently, the more common models include a one-shot extrusion blow molding machine that uses PP and PE, and a two-shot injection stretch blow molding machine that uses PET, PC or PP.

[0003] In the prior art, a Chinese patent with a publication number of CN212400326U is proposed. The technical solution disclosed in the patent document is as follows: a cooling device for a bottle blowing machine, comprising a cooling device body, a mold and a main water tank, a second hydraulic pump is fixedly provided on the upper end surface of the cooling device body, a second hydraulic rod is driven at the lower end of the second hydraulic pump, an air outlet is fixedly provided at one end of the second hydraulic rod, an air pump is provided on one side of the air outlet, an interface is provided on one side surface of the air pump, a first hydraulic pump is fixedly provided on both sides of the inner surface of the cooling device body, a first hydraulic rod is driven on one side of the first hydraulic pump, and the water is discharged into the heat dissipation water tank through the outlet of the heat absorption pipe. Since the heat dissipation water tank is S-shaped and a plurality of heat dissipation fins are provided on the surface of the heat dissipation water tank, the heat dissipation fins on the surface of the heat dissipation water tank are dissipated by the heat dissipation fan during the process of the heat dissipation water gradually flowing toward the main water tank, thereby cooling the water, greatly improving the heat dissipation speed, scientific and reasonable structure, safe and convenient use, and providing great help for people.

[0004] This prior art achieves cooling of the bottle body by absorbing heat from the inside of the mold. However, this cooling method from the outside to the inside does not have a good cooling effect on the inside of the bottle body, which can easily lead to uneven cooling of the entire bottle body, affecting the quality of the bottle body and possibly causing uneven stress. Utility Model Content

[0005] The purpose of the present utility model is to provide a cooling device for a rotary bottle blowing machine to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A cooling device for a rotary bottle blowing machine includes a mold, a hydraulic rod, an air pump and a refrigeration device. An air blowing cooling pipe is provided above the mold, a positioning cylinder is provided on the top of the air blowing cooling pipe, an air outlet is fixedly connected to the top of the positioning cylinder, and a ventilation cooling hose is fixedly connected to one side of the positioning cylinder.

[0008] The air blowing cooling pipe includes an air outlet pipe, the outer wall of the air outlet pipe is fixedly sleeved with an internal sleeve, the outer wall of the internal sleeve is movably sleeved with a sealing sleeve, the outer wall of the sealing sleeve is provided with an external air outlet groove, the outer wall of the internal sleeve is provided with a internal air outlet groove, the top of the sealing sleeve is fixedly connected with an auxiliary ring, the outer wall of the auxiliary ring is slidably connected to the inner wall of the positioning cylinder, and the top of the auxiliary ring is fixedly connected with a reset spring.

[0009] The outer wall of the sealing sleeve is adaptively connected to the inner wall of the bottom end of the positioning cylinder, and the top of the air outlet pipe is fixedly connected to the bottom end of the air outlet.

[0010] A further improvement of the technical solution of the present utility model is that the outer wall of the air blowing cooling pipe is movably sleeved with a guide ring, the outer wall of the guide ring is fixedly connected to a guide slide rod through a mounting block, and the outer wall of the guide slide rod near the top is movably sleeved with a positioning ring.

[0011] A further improvement of the technical solution of the present invention is that: a buffer spring is fixedly connected to the top of the positioning collar, and the top end of the buffer spring is fixedly connected to the top end of the guide slide rod.

[0012] A further improvement of the technical solution of the present utility model is that the inner wall of the built-in sleeve near the bottom end is fixedly connected to the outer wall of the air outlet pipe near the bottom end.

[0013] A further improvement of the technical solution of the present invention is that a mold cooling assembly is provided below the mold, and the top of the air outlet is fixedly connected to the bottom end of the hydraulic rod.

[0014] A further improvement of the technical solution of the present utility model is that: an air blowing hose for conveying air thereto is fixedly connected to one side of the air outlet.

[0015] A further improvement of the technical solution of the present invention is that: the number of the guide slide bars is two groups, and the two groups of guide slide bars are symmetrically distributed on both sides of the guide ring.

[0016] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0017] The utility model provides a cooling device for a rotary bottle blowing machine. By using a ventilation cooling hose, a positioning cylinder, a sealing sleeve, an internal sleeve, a return spring, an external air outlet groove and an internal air outlet groove in combination, the device can achieve the effect of cooling the inner and outer walls of the bottle body at the same time, thereby improving the cooling efficiency and avoiding uneven cooling of the entire bottle body, affecting the quality of the bottle body, and possibly causing uneven stress problems.

[0018] The utility model provides a cooling device for a rotary bottle blowing machine, which uses a guide slide bar, a buffer spring, a guide ring and a positioning collar to limit the downward movement path of the blowing cooling pipe so that the blowing cooling pipe can maintain a downward movement path perpendicular to the top of the mold, thereby ensuring the uniformity of bottle expansion in the subsequent bottle blowing process and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the guide ring structure of the present utility model;

[0021] Figure 3 This is a schematic diagram of the positioning cylinder structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the air blowing cooling pipe of the utility model;

[0023] Figure 5 This is a schematic diagram of the top view of the structural details of the positioning tube of the present invention.

[0024] In the figure: 1. mold; 2. air blowing cooling pipe; 3. hydraulic rod; 4. air blowing hose; 5. ventilation cooling hose; 6. air pump; 7. refrigeration device; 8. guide ring; 9. guide slide; 10. buffer spring; 11. positioning collar; 12. positioning cylinder; 13. air outlet; 14. sealing sleeve; 15. internal sleeve; 16. air outlet pipe; 17. auxiliary collar; 18. reset spring; 19. external air outlet groove; 20. internal air outlet groove. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] The present invention is further described in detail below with reference to the embodiments:

[0027] like Figure 1-5As shown, the utility model provides a cooling device for a rotary bottle blowing machine, including a mold 1, a hydraulic rod 3, an air pump 6 and a refrigeration device 7. An air blowing cooling pipe 2 is provided above the mold 1, and a positioning cylinder 12 is provided on the top of the air blowing cooling pipe 2. The top of the positioning cylinder 12 is fixedly connected to an air outlet 13, and one side of the positioning cylinder 12 is fixedly connected to a ventilation cooling hose 5.

[0028] The air blowing cooling pipe 2 includes an air outlet pipe 16. An inner sleeve 15 is fixedly sleeved on its outer wall. A sealing sleeve 14 is movably sleeved on its outer wall. The outer wall of the sealing sleeve 14 is provided with an external air outlet groove 19. The outer wall of the inner sleeve 15 is provided with an inner air outlet groove 20. An auxiliary collar 17 is fixedly connected to the top of the sealing sleeve 14. The outer wall of the auxiliary collar 17 is slidably connected to the inner wall of the positioning cylinder 12. A return spring 18 is fixedly connected to the top of the auxiliary collar 17. When the hydraulic rod 3 pushes the air blowing cooling pipe 2 to begin docking with the mold 1, the guide ring 8 first docks with the air inlet end of the top of the mold 1. Driven by the reaction force of the buffer spring 10, the guide ring 8 is relatively fixed to the mold 1, ensuring that the air blowing cooling pipe 2 can move downward while remaining perpendicular to the top of the mold 1. During the bottle blowing process, the hydraulic rod 3 pushes the air outlet 13, causing the air outlet pipe 16 to gradually move downward until it reaches its maximum downward distance, at which point the bottle body is fully formed in the mold 1.

[0029] The outer wall of the sealing sleeve 14 is adapted to be connected to the inner wall of the bottom end of the positioning tube 12 , and the top of the air outlet pipe 16 is fixedly connected to the bottom end of the air outlet 13 .

[0030] like Figure 1-5 As shown, based on Example 1, the utility model provides a technical solution: preferably, the outer wall of the air blowing cooling pipe 2 is movably connected with a guide ring 8, the outer wall of the guide ring 8 is fixedly connected with a guide slide rod 9 through a mounting block, and the outer wall of the guide slide rod 9 near the top is movably connected with a positioning ring 11.

[0031] The top of the positioning collar 11 is fixedly connected to a buffer spring 10 , and the top end of the buffer spring 10 is fixedly connected to the top end of the guide slide rod 9 .

[0032] The inner wall of the built-in sleeve 15 near the bottom end is fixedly connected to the outer wall of the air outlet pipe 16 near the bottom end.

[0033] A mold cooling assembly is provided below the mold 1 , and the top of the air outlet 13 is fixedly connected to the bottom end of the hydraulic rod 3 .

[0034] One side of the air outlet 13 is fixedly connected to an air blowing hose 4 for conveying air thereto.

[0035] There are two sets of guide slides 9, symmetrically distributed on both sides of the guide ring 8. When the hydraulic rod 3 pulls the air outlet 13 upward to reset, the buffer spring 10 begins to reset under the reaction force of its own deformation, thereby pushing the guide slides 9 downward. The guide slides 9 push the guide ring 8 downward to the bottom end of the air blowing cooling pipe 2.

[0036] When the gas of the ventilation cooling hose 5 stops being transported, the return spring 18 will pull the sealing sleeve 14 to return to its original position. At this time, the sealing sleeve 14 will re-seal the built-in gas outlet groove 20 to facilitate the subsequent use of the built-in sleeve 15.

[0037] The following is a detailed description of the working principle of the cooling device of the rotary bottle blowing machine.

[0038] like Figure 1-5 As shown, during use, when the bottle body in the mold 1 needs to be cooled, the refrigeration device 7 is started to generate air with a relatively low temperature, and the air is transported to the positioning cylinder 12 through the ventilation cooling hose 5 connected to the air pump 6. At this time, the blowing cooling pipe 2 is located as a whole inside the bottle body. When the cold air is transported to the positioning cylinder 12, there is a certain gap between the built-in sleeve 15 and the air outlet pipe 16. At this time, the cold air first fills the gap. As the air pressure in the positioning cylinder 12 continues to increase, the auxiliary ring 17 is pressurized on the inner wall of the positioning cylinder 12 and begins to push the sealing sleeve 14 downward. When the auxiliary ring 17 gradually moves downward on the inner wall of the positioning cylinder 12, the external air outlet groove 19 gradually forms a connection with the built-in air outlet groove 20, and the ventilation area gradually increases.

[0039] At this time, the cold air in the hydraulic rod 3 will be synchronously sprayed into the bottle body through multiple sets of built-in air outlet grooves 20 for cooling, and the mold cooling assembly under the mold 1 will be carried out synchronously, so that a synchronous cooling effect can be formed on the inner and outer walls of the bottle body, while improving the cooling efficiency and avoiding the problem of uneven cooling.

[0040] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A cooling device for a rotary bottle blowing machine, comprising a mold (1), a hydraulic rod (3), an air pump (6) and a refrigeration device (7), characterized in that: An air blowing cooling pipe (2) is provided above the mold (1), a positioning cylinder (12) is provided on the top of the air blowing cooling pipe (2), an air outlet (13) is fixedly connected to the top of the positioning cylinder (12), and a ventilation cooling hose (5) is fixedly connected to one side of the positioning cylinder (12); The air blowing cooling pipe (2) includes an air outlet pipe (16), the outer wall of the air outlet pipe (16) is fixedly sleeved with an internal sleeve (15), the outer wall of the internal sleeve (15) is movably sleeved with a sealing sleeve (14), the outer wall of the sealing sleeve (14) is provided with an external air outlet groove (19), the outer wall of the internal sleeve (15) is provided with an internal air outlet groove (20), the top of the sealing sleeve (14) is fixedly connected with an auxiliary ring (17), the outer wall of the auxiliary ring (17) is slidably connected to the inner wall of the positioning cylinder (12), and the top of the auxiliary ring (17) is fixedly connected with a reset spring (18); The outer wall of the sealing sleeve (14) is adaptively connected to the inner wall of the bottom end of the positioning cylinder (12), and the top of the air outlet pipe (16) is fixedly connected to the bottom end of the air outlet (13).

2. The cooling device of a rotary bottle blowing machine according to claim 1, characterized in that: The outer wall of the air blowing cooling pipe (2) is movably sleeved with a guide ring (8), the outer wall of the guide ring (8) is fixedly connected to a guide slide rod (9) via a mounting block, and the outer wall of the guide slide rod (9) near the top end is movably sleeved with a positioning ring (11).

3. The cooling device of a rotary bottle blowing machine according to claim 2, characterized in that: The top of the positioning collar (11) is fixedly connected to a buffer spring (10), and the top end of the buffer spring (10) is fixedly connected to the top end of the guide slide rod (9).

4. The cooling device of a rotary bottle blowing machine according to claim 1, characterized in that: The inner wall of the built-in sleeve (15) near the bottom end is fixedly connected to the outer wall of the air outlet pipe (16) near the bottom end.

5. The cooling device of a rotary bottle blowing machine according to claim 1, characterized in that: A mold cooling assembly is provided below the mold (1), and the top of the air outlet (13) is fixedly connected to the bottom end of the hydraulic rod (3).

6. The cooling device of a rotary bottle blowing machine according to claim 1, characterized in that: One side of the air outlet (13) is fixedly connected to an air blowing hose (4) for conveying air thereto.

7. The cooling device of a rotary bottle blowing machine according to claim 2, characterized in that: The number of the guide slide bars (9) is two groups, and the two groups of guide slide bars (9) are symmetrically distributed on both sides of the guide ring (8).

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