Blow molding structure for hollow container production

Abstract

The utility model relates to the technical field of hollow container production, and discloses a blow molding structure for hollow container production, which comprises a box body, the front side of the box body is rotatably connected with a switch assembly, the top end of the box body is fixedly connected with a connecting assembly, and the bottom end of the box body is fixedly connected with an air blowing assembly. A motor is fixedly connected to the interior of the left side of the top end of the box body, a driving wheel is fixedly connected to the driving end of the motor, a driven wheel is rotationally connected to the left side of the box body, the driving wheel and the driven wheel are sleeved with a belt, and the right end of the driving wheel and the right end of the driven wheel are both fixedly connected with two-way threaded rods; and the outer part of the bidirectional threaded rod is in threaded connection with a moving block. According to the utility model, the two strong springs are driven by the force application plate, so that the dies collide with each other, the collision force is reduced under the spring force of the force application plate, the abrasion of equipment is reduced, and then the integrating degree between the dies can be increased under the elastic force of the force application plate.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow container production, in particular to a blow molding structure for hollow container production. Background Art

[0002] A hollow container refers to a container that is hollow inside. This type of container is usually made of plastic material through a specific molding process. Blow molding is a process technology for manufacturing hollow plastic containers. The process involves using a semi-molten tubular parison obtained by extrusion or injection molding, placing it in a mold, and blowing it up and clinging to the inner wall of the mold by passing high-pressure air into the parison. Finally, the final hollow product is obtained after cooling and demolding.

[0003] After searching, the Chinese patent document announcement number is: CN218256709U. The utility model discloses a hollow blow molding machine, including a base, the top of the base is rotatably connected with four symmetrically arranged support rods, the tops of the four support rods are rotatably connected with the same top plate, the top of the base is fixedly installed with a first motor, the output shaft of the first motor is fixedly connected with the corresponding support rods, the top of the top plate is fixedly installed with a blow molding mechanism, the bottom of the top plate is fixedly installed with an upper mold, the four support rods are movably connected with a moving ring, the bottom of the moving ring is fixedly installed with a lower mold, the upper mold and the lower mold cooperate with each other, the bottom of the top plate is fixedly installed with four symmetrically arranged fixed boxes, the fixed box is provided with an air guide mechanism, the top of the top plate is fixedly installed with a support frame, and the top of the support frame is fixedly installed with a second motor. It has a simple structure, is easy to operate, can facilitate rapid cooling of plastic containers, and can also automatically separate the two molds for easy material discharge.

[0004] The above patent mentions in the beneficial effects that "the output shaft of the first motor 5 drives the four support rods 2 to rotate simultaneously through the mutual engagement of the four transmission gears 6 and the annular rack 7, and then drives the lower mold 9 to contact the upper mold 8 through the positioning ring 11". However, when the two molds are closed, a hard impact will occur, which will not only generate noise, but also damage the mold and increase the wear of the equipment. For this reason, a blow molding structure for hollow container production is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a blow molding structure for producing hollow containers, aiming to improve the problem in the prior art that when two molds are closed, not only noise is generated, but also the molds are damaged and the wear of the equipment is increased.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A blow molding structure for producing hollow containers, comprising a box body, a switch assembly is rotatably connected to the front side of the box body, a connecting assembly is fixedly connected to the top of the box body, a blowing assembly is fixedly connected to the bottom end of the box body, a motor is fixedly connected to the left side of the top end of the box body, a driving wheel is fixedly connected to the driving end of the motor, a driven wheel is rotatably connected to the left side of the box body, a belt is sleeved on the outside of the driving wheel and the driven wheel, a two-way threaded rod is fixedly connected to the right end of the driving wheel and the driven wheel, a moving block is threadedly connected to the outside of the two-way threaded rod, two accommodating holes are provided inside the top end of the box body, a plurality of fixing rods are fixedly connected to the inside of the box body, two strong springs are sleeved on the outside of the fixing rods, a force application plate is slidably connected to the outside of the fixing rods, a connecting plate is slidably connected to the outside of the fixing rods, and molds are fixedly connected to the adjacent sides of the two connecting plates;

[0008] As a further description of the above technical solution:

[0009] The top of the mold is fixedly connected to a water tank, the front side of the water tank is fixedly connected to a water pump, the front end of the water pump is fixedly connected to a transmission pipe, the bottom end of the transmission pipe is fixedly connected to a cooling pipe, and the rear side of the cooling pipe is fixedly connected to a circulating pipe;

[0010] As a further description of the above technical solution:

[0011] The switch assembly includes two switch doors, the upper and lower sides of the switch doors are rotatably connected to the front side of the box body, and the front side of the switch door is fixedly connected with a handle;

[0012] As a further description of the above technical solution:

[0013] The connection assembly includes a connection pipe, the bottom end of the connection pipe is fixedly connected to the top end of the box, the bottom end of the connection pipe is fixedly connected to an embryo transfer tube, the outer top end of the embryo transfer tube is fixedly connected to the inside of the top end of the box, and the outer part of the embryo transfer tube is fixedly connected to a sealing ring 1;

[0014] As a further description of the above technical solution:

[0015] The blowing assembly includes a compressed air pump, the top of which is fixedly connected to the bottom of the box, the middle of the moving end of the compressed air pump is fixedly connected to an air pipe, the outside of the air pipe is fixedly connected to the inside of the bottom of the box, and the outside of the air pipe is fixedly connected to a second sealing ring;

[0016] As a further description of the above technical solution:

[0017] The left and right sides of the bidirectional threaded rod are rotatably connected to the left and right sides of the interior of the accommodating hole respectively, the exterior of the moving block is slidably connected to the interior of the accommodating hole, and the bottom end of the moving block is fixedly connected to the top end of the force application plate;

[0018] As a further description of the above technical solution:

[0019] The outside of the force-applying plate is slidably connected to the inside of the box body, one end of the strong spring is fixedly connected to one side of the force-applying plate, and the other end of the strong spring is fixedly connected to one side of the connecting plate;

[0020] As a further description of the above technical solution:

[0021] The rear bottom end of the circulating pipe is fixedly connected to the top end of the water tank, and the outside of the cooling pipe is fixedly connected to the inside of the mold.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the force plate drives two strong springs to make the molds collide with each other, and the spring force of the force plate reduces the force of the collision, thereby reducing the wear of the equipment, and then the elastic force of the force plate can also increase the fit between the molds.

[0024] 2. In the utility model, the coolant inside the cooling box is transferred to the cooling pipe through a water pump, which can transfer the heat in the mold more quickly, shorten the cooling time, and improve production efficiency. Then the coolant returns to the inside of the cooling box from the circulating pipe, which can more effectively utilize the coolant and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional schematic diagram of a blow molding structure for producing a hollow container proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of a fixing rod structure of a blow molding structure for hollow container production proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of a box structure of a blow molding structure for hollow container production proposed by the utility model;

[0028] Figure 4 for Figure 2 A in the enlarged view;

[0029] Figure 5 This is a schematic diagram of a mold structure for a blow molding structure for producing a hollow container proposed by the utility model;

[0030] Figure 6The utility model provides a schematic diagram of a cooling tube structure of a blow molding structure for hollow container production.

[0031] Legend:

[0032] 1. Box body; 2. Open and close door; 3. Handle; 4. Connecting pipe; 5. Embryo delivery tube; 6. Sealing ring 1; 7. Compressed air pump; 8. Air delivery pipe; 9. Sealing ring 2; 10. Motor; 11. Driving wheel; 12. Driven wheel; 13. Belt; 14. Bidirectional threaded rod; 15. Moving block; 16. Accommodating hole; 17. Fixed rod; 18. Strong spring; 19. Force plate; 20. Connecting plate; 21. Mold; 22. Water tank; 23. Water pump; 24. Transmission pipe; 25. Cooling pipe; 26. Circuit pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1 , Figure 2 and Figure 4 The utility model provides an embodiment: a blow molding structure for producing hollow containers, including a box body 1, which is the main part of the entire blow molding structure. The front side of the box body 1 is rotatably connected with a switch assembly, and the switch assembly includes two switch doors 2. The upper and lower sides of the switch doors 2 are rotatably connected to the front side of the box body 1, respectively. The front side of the switch door 2 is fixedly connected with a handle 3. The operator can open or close the door by holding the handle 3. The top of the box body 1 is fixedly connected with a connecting assembly for conveying a tube for plastic preforms. The connecting assembly includes a connecting pipe 4. The bottom end of the connecting pipe 4 is fixedly connected to the top of the box body 1. The bottom end of the connecting pipe 4 is fixedly connected to a embryo delivery tube 5 to ensure that the preform can smoothly enter the mold. The external top end of the embryo transport tube 5 is fixedly connected to the top end of the box body 1, and the external part of the embryo transport tube 5 is fixedly connected with a sealing ring 6 to prevent leakage of the plastic preform during transportation. The bottom end of the box body 1 is fixedly connected with a blowing assembly for injecting air into the plastic preform during blow molding to expand it. The blowing assembly includes a compressed air pump 7, the top end of the compressed air pump 7 is fixedly connected to the bottom end of the box body 1, and the middle part of the moving end of the compressed air pump 7 is fixedly connected with an air pipe 8 to transport compressed air. The outside of the air pipe 8 is fixedly connected to the bottom end of the box body 1, and the outside of the air pipe 8 is fixedly connected to the outside of the air pipe 8. A sealing ring 9 is used to ensure that the gas will not leak during transportation, thereby ensuring the efficiency and quality of the blow molding process.

[0035] Reference Figure 2 and Figure 3 and Figure 5 The top left side of the box body 1 is fixedly connected with a motor 10 to provide a power source, the driving end of the motor 10 is fixedly connected with a driving wheel 11, and the left side of the box body 1 is rotatably connected with a driven wheel 12. The outer sleeves of the driving wheel 11 and the driven wheel 12 are provided with a belt 13. The right ends of the driving wheel 11 and the driven wheel 12 are fixedly connected with a bidirectional threaded rod 14 to transmit the rotational power of the motor 10 to the bidirectional threaded rod 14. The outer threads of the bidirectional threaded rod 14 are connected with a moving block 15 to convert the rotational motion of the motor 10 into the linear motion of the moving block 15. Two accommodating holes 16 are provided inside the top of the box body 1. The left and right sides of the bidirectional threaded rod 14 are rotatably connected to the left and right sides of the inner side of the accommodating hole 16 respectively. The outer side of the moving block 15 is slidably connected to the inner side of the accommodating hole 16 so that the moving block 15 can move stably. The box body 1 is fixedly connected with a plurality of fixing rods 17 inside, two strong springs 18 are sleeved outside the fixing rods 17, a force plate 19 is slidably connected outside the fixing rods 17, the bottom end of the moving block 15 is fixedly connected to the top of the force plate 19, the outside of the force plate 19 is slidably connected to the inside of the box body 1, one end of the strong spring 18 is fixedly connected to one side of the force plate 19, the outside of the fixing rod 17 is slidably connected to a connecting plate 20, the other end of the strong spring 18 is fixedly connected to one side of the connecting plate 20 to provide elastic force between the force plate 19 and the connecting plate 20, keep the mold 21 in a closed or open state, and provide necessary pressure during the blow molding process, and provide a buffering effect, the adjacent sides of the two connecting plates 20 are fixedly connected with molds 21, and the two molds 21 cooperate with each other to form the shape of a hollow container.

[0036] Reference Figure 5 and Figure 6 The top of the mold 21 is fixedly connected to a water tank 22 for storing water for cooling, the front side of the water tank 22 is fixedly connected to a water pump 23 for transferring the water in the water tank 22, the front end of the water pump 23 is fixedly connected to a transfer pipe 24, the bottom end of the transfer pipe 24 is fixedly connected to a cooling pipe 25, and the water flowing therein absorbs the heat generated by the mold 21 and the hollow container during the blow molding process to achieve rapid cooling, the outside of the cooling pipe 25 is fixedly connected to the inside of the mold 21, the rear side of the cooling pipe 25 is fixedly connected to a patrol pipe 26, and the rear bottom end of the patrol pipe 26 is fixedly connected to the top of the water tank 22. This design forms a closed loop, so that the cooling water can be reused.

[0037] Working principle: first start the motor 10, and drive the driving wheel 11 to rotate under the drive of the motor 10, and then drive the belt 13 to make the driven wheel 12 move under the rotation of the driving wheel 11, and then drive the bidirectional threaded rod 14 to rotate inside the accommodating hole 16 under the movement of the driving wheel 11 and the driven wheel 12, and then drive the moving block 15 to move under the movement of the bidirectional threaded rod 14, and drive the force plate 19 to slide outside the fixed rod 17 under the movement of the moving block 15, and then drive the strong spring 18 to make the connecting plate 20 move under the movement of the force plate 19, and then drive the mold 21 to close under the movement of the connecting plate 20, which will make the embryo delivery tube 5 and the air delivery tube 8 clamped on the adjacent side of the two molds 21, and then under the action of the sealing ring 1 6 and the sealing ring 2 9, the two molds 21 are in a sealed state when they are closed, and the two molds 21 are in a sealed state when they are closed. When closed, the mold 21 will be stressed, and then the strong spring 18 will be stressed under the stress of the mold 21, and a rebound force will be generated under the stress of the strong spring 18. This rebound force can buffer the force exerted on the mold 21, reduce noise, and reduce the risk of damage to the mold. In addition, the two molds 21 will be more fitted under the elastic force of the strong spring 18, and then the plastic preform can be transported from the embryo transfer tube 5 to the adjacent side of the two molds 21. Then, the compressed air pump 7 is started to introduce compressed air into the plastic preform to inflate it and cling to the inner wall of the mold 21. At this time, the water pump 23 is started, and the coolant is transported from the transmission pipe 24 to the cooling pipe 25 under the action of the water pump 23. The flowing liquid can effectively drive heat, and the liquid will also return to the inside of the water tank 22 through the circulating pipe 26 to ensure that the cooling liquid is in a flowing state when dissipating heat.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blow molding structure for producing a hollow container, comprising a box body (1), characterized in that: The front side of the box (1) is rotatably connected to a switch assembly, the top end of the box (1) is fixedly connected to a connection assembly, the bottom end of the box (1) is fixedly connected to an air blowing assembly, the top left side of the box (1) is fixedly connected to a motor (10), the driving end of the motor (10) is fixedly connected to a driving wheel (11), the left side of the box (1) is rotatably connected to a driven wheel (12), the outer sides of the driving wheel (11) and the driven wheel (12) are covered with a belt (13), and the right ends of the driving wheel (11) and the driven wheel (12) are fixedly connected to a double The bidirectional threaded rod (14) is connected to a moving block (15) through an external thread of the bidirectional threaded rod (14), two receiving holes (16) are provided inside the top of the box body (1), a plurality of fixed rods (17) are fixedly connected inside the box body (1), two strong springs (18) are sleeved outside the fixed rods (17), a force plate (19) is slidably connected outside the fixed rods (17), a connecting plate (20) is slidably connected outside the fixed rods (17), and a mold (21) is fixedly connected to the adjacent sides of the two connecting plates (20).

2. A blow molding structure for producing a hollow container according to claim 1, characterized in that: The top end of the mold (21) is fixedly connected to a water tank (22), the front side of the water tank (22) is fixedly connected to a water pump (23), the front end of the water pump (23) is fixedly connected to a transmission pipe (24), the bottom end of the transmission pipe (24) is fixedly connected to a cooling pipe (25), and the rear side of the cooling pipe (25) is fixedly connected to a circulation pipe (26).

3. A blow molding structure for producing a hollow container according to claim 1, characterized in that: The switch assembly comprises two switch doors (2), the upper and lower sides of the switch doors (2) are rotatably connected to the front interior of the box body (1), and the front side of the switch door (2) is fixedly connected to a handle (3).

4. A blow molding structure for producing a hollow container according to claim 1, characterized in that: The connection assembly comprises a connection tube (4), the bottom end of the connection tube (4) is fixedly connected to the top end of the box body (1), the bottom end of the connection tube (4) is fixedly connected to an embryo transfer tube (5), the outer top end of the embryo transfer tube (5) is fixedly connected to the inside of the top end of the box body (1), and the outside of the embryo transfer tube (5) is fixedly connected to a sealing ring (6).

5. The blow molding structure for producing a hollow container according to claim 1, characterized in that: The blowing assembly comprises a compressed air pump (7), the top end of the compressed air pump (7) is fixedly connected to the bottom end of the box (1), the middle part of the moving end of the compressed air pump (7) is fixedly connected to an air pipe (8), the outside of the air pipe (8) is fixedly connected to the inside of the bottom end of the box (1), and the outside of the air pipe (8) is fixedly connected to a sealing ring 2 (9).

6. A blow molding structure for producing a hollow container according to claim 1, characterized in that: The left and right sides of the bidirectional threaded rod (14) are rotatably connected to the left and right sides of the inside of the accommodating hole (16), respectively; the outside of the moving block (15) is slidably connected to the inside of the accommodating hole (16); and the bottom end of the moving block (15) is fixedly connected to the top end of the force application plate (19).

7. A blow molding structure for producing a hollow container according to claim 1, characterized in that: The outside of the force applying plate (19) is slidably connected to the inside of the box body (1), one end of the strong spring (18) is fixedly connected to one side of the force applying plate (19), and the other end of the strong spring (18) is fixedly connected to one side of the connecting plate (20).

8. A blow molding structure for producing a hollow container according to claim 2, characterized in that: The rear bottom end of the circulating pipe (26) is fixedly connected to the top end of the water tank (22), and the outside of the cooling pipe (25) is fixedly connected to the inside of the mold (21).

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