Plastic bottle preform heater

Abstract

The utility model relates to the technical field of beverage processing, and discloses a plastic bottle preform heater which comprises a machine body and a heat insulation seat, a conveying belt is installed on the machine body, bottle preforms are conveyed and heated through the conveying belt, and a heat insulation base is installed on the conveying belt. The heat-insulating seat comprises a heat-insulating cylinder, a mounting seat, a heat-insulating ring and a discharging mechanism, the bottom of the heat-insulating cylinder is fixedly mounted on the mounting seat, and the bottom of the mounting seat is fixedly connected with the conveying belt. The bottle blank heating device has the following advantages and effects that when a bottle blank is heated, the convex ring and the bottle opening are inserted into the insertion column, so that the convex ring is embedded below the heat insulation ring, and heat insulation protection is carried out on the convex ring and the bottle opening through the heat insulation barrel and the heat insulation layer; according to the blow molding device, heat borne by the bottle opening can be slowed down, inconvenience caused by the bottle opening to follow-up blow molding operation is avoided, the heating duration of the blank can be prolonged under the condition that heating of the bottle opening is reduced, the blank can be heated evenly, and the acceleration efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage processing, in particular to a plastic bottle embryo heater. Background Art

[0002] In beverage production, the main purpose of heating the preforms of plastic bottles is to ensure that the preforms have good performance in the subsequent blow molding process. Since the preforms of plastic bottles are usually made of crystalline materials such as PET (polyethylene terephthalate), these materials can be better stretched and blow molded after heating, thus making plastic bottles with stable shape and good performance.

[0003] The existing Chinese patent with the announcement number CN217226616U discloses a preform heating device, including an L-shaped box, which is horizontally arranged, a feeding mechanism is arranged inside the L-shaped box, and a heating mechanism is arranged inside the L-shaped box. By arranging an extrusion bar and a door-shaped bar at the bottom end of the rotating column to cooperate with each other, the preform will feel blocked when the placing plate rotates during the heating process, preventing the surface of the preform from contacting the inner wall of the heating cylinder; by arranging the heating mechanism and arranging a motor under the heating cylinder, the heating cylinder can rotate when working.

[0004] Based on the above situation, the inventors believe that the purpose of heating the preform is to heat the preform body. However, when the heater is used, the bottle mouth that does not need to be heated is often heated together. It is difficult to fully heat the preform body while reducing the heating of the bottle mouth. Utility Model Content

[0005] The utility model aims to provide a plastic bottle preform heater, which has the effect of providing heat insulation protection for the bottle mouth, reducing the degree of heat exposure of the bottle mouth, so as to facilitate sufficient heating of the preform and improve the heating efficiency.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a plastic bottle preform heater, comprising a body and a heat insulation seat;

[0007] A conveyor belt is installed on the machine body, and the preforms are transported and heated by the conveyor belt, and the heat insulation seat is installed on the conveyor belt;

[0008] The thermal insulation seat includes a thermal insulation cylinder, a mounting seat, a thermal insulation ring and a discharge mechanism. The bottom of the thermal insulation cylinder is fixedly mounted on the mounting seat, the bottom of the mounting seat is fixedly connected to the conveyor belt, the thermal insulation ring is arranged on the inner side of the thermal insulation cylinder, the bottom of the bottle preform is plugged into the thermal insulation cylinder, and the discharge mechanism is installed at the bottom of the thermal insulation cylinder so that the bottle preform and the thermal insulation cylinder can be quickly separated through the discharge mechanism.

[0009] By adopting the above technical solution, the degree of heat exposure to the bottle mouth can be reduced, the embryo body can be heated cyclically and fully heated, and the heating efficiency and molding effect can be improved.

[0010] The utility model is further configured as follows: a convex ring is integrally provided on the outer side of the bottom of the bottle embryo, the bottom of the convex ring is integrally fixed to the bottle mouth, the heat insulation cylinder includes a cylinder body and a plug post, the cylinder body is fixedly provided on the surface of the mounting seat, the plug post is coaxially provided inside the cylinder body, and the bottom of the plug post is fixed to the mounting seat, and the bottle mouth is inserted on the outer side of the plug post.

[0011] By adopting the above technical solution, the bottom of the bottle preform can be stably fitted and plugged with the plug post through the bottle mouth, thereby meeting the heating requirements of the bottle preform and the bottle body.

[0012] The utility model is further configured as follows: the inner peripheral edge of the heat insulation ring is a rounded structure, the upper surface of the convex ring is fitted with the heat insulation ring, and the inner side of the heat insulation ring is fitted with the bottle embryo.

[0013] By adopting the above technical solution, the flow of external heat entering the cylinder is reduced through the heat insulation ring, so as to improve the heat insulation protection of the convex ring and the bottle mouth.

[0014] The utility model is further configured as follows: a heat insulation layer is attached to the inner wall of the cylinder.

[0015] By adopting the above technical solution, the heat insulation effect inside the cylinder is improved through the heat insulation layer, so as to reduce the heat received by the convex ring and the bottle mouth.

[0016] The utility model is further configured as follows: the mounting seat comprises a rotating seat and a fixed seat, the bottom of the rotating seat is rotatably mounted on the fixed seat, the bottom of the fixed seat is fixed to the conveyor belt, and the upper surface of the fixed seat is fixed to the cylinder and the plug.

[0017] By adopting the above technical solution, the fixed seat is driven to move by the conveyor belt, so that the preform can be moved and heated.

[0018] The utility model is further configured as follows: a through opening penetrating the upper and lower surfaces is provided inside the rotating seat, a shaft tube is installed inside the fixed seat, and the top of the shaft tube is rotatably connected to the through opening.

[0019] By adopting the above technical solution, when it is necessary to inject a heating medium into the interior of the preform to help uniform heating, the heating medium is injected into the interior of the through opening through the shaft tube.

[0020] The utility model is further configured as follows: the outside of the shaft tube is embedded and installed in the mechanical seal, and the outside of the mechanical seal is rotatably connected with the rotating seat and the fixed seat.

[0021] By adopting the above technical solution, the rotating seat and the fixed seat can maintain rotational cooperation through the mechanical seal, and avoid leakage of the heating medium, thereby meeting the subsequent use needs.

[0022] The utility model is further configured as follows: a through hole communicating with the bottle embryo is provided inside the plug post, and the bottom of the through hole is communicated with the through opening.

[0023] By adopting the above technical solution, the heating medium is injected into the through hole through the through opening, and the heating medium is injected into the bottle embryo through the through hole.

[0024] The utility model is further configured as follows: an embedding groove is provided on the inner side of the cylinder and the insulation layer, the unloading mechanism is symmetrically arranged at two locations on the cylinder, the unloading mechanism comprises a pressure plate, a shaft column, a torsion spring and a top block, the outer side of the pressure plate is rotatably mounted on the cylinder through the shaft column and the embedding groove, a torsion spring for resetting is mounted on the shaft column, the bottom of the top block is fixed integrally with the pressure plate, and the top of the top block is in contact with the bottle mouth.

[0025] By adopting the above technical solution, during implementation, by pressing the outer end of the pressing plate, the pressing plate can push the bottle mouth upward through the top block through the lever principle.

[0026] The utility model is further configured as follows: a gear ring is fixedly mounted on the outer side of the rotary seat, a heating component is arranged inside the machine body, a mounting plate is fixedly mounted on the side of the heating component close to the rotary seat, convex teeth are fixedly arranged on the mounting plate, and the outer side of the gear ring is meshed with the convex teeth.

[0027] By adopting the above technical solution, when the preform is sent into the heating chamber inside the machine body through the fixing seat, the outer side of the rotating seat can be brought into contact and mesh with the convex teeth through the gear ring.

[0028] The beneficial effects of the utility model are:

[0029] When the preform is heated, the convex ring and the bottle mouth are inserted into the plug column, so that the convex ring is embedded under the heat insulation ring, and the convex ring and the bottle mouth are insulated and protected by the heat insulation tube and the heat insulation layer, so that when the preform is sent into the machine body through the protective conveyor belt for heating, the heat received by the bottle mouth can be reduced to avoid the bottle mouth causing inconvenience to the subsequent blow molding operation, and at the same time, the heating time of the preform can be increased when the bottle mouth is heated less, so that the preform can be heated evenly, which is conducive to providing acceleration efficiency;

[0030] In addition, when the pressing plate is pressed, the pressing plate will push the bottle mouth upward through the shaft column, so that the bottle mouth and the plug column can be quickly separated when the heated embryo needs to be unloaded, thereby improving the efficiency of heating and unloading the bottle embryo. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1A schematic diagram of the structure of a plastic bottle preform heater provided by an embodiment of the utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the heat insulation seat in the embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of the structure of the heat insulation cylinder in the embodiment of the utility model;

[0035] Figure 4 This is a structural schematic diagram of the unloading mechanism in the embodiment of the utility model;

[0036] Figure 5 It is a schematic diagram of the structure of the convex teeth in the embodiment of the utility model.

[0037] In the figure, 1, machine body; 2, heat-insulating seat; 11, conveyor belt; 12, bottle embryo; 13, convex ring; 14, bottle mouth; 15, heating component; 21, heat-insulating cylinder; 22, mounting seat; 23, heat-insulating ring; 24, unloading mechanism; 211, cylinder; 212, plug column; 213, heat-insulating layer; 214, through hole; 215, embedded groove; 221, rotating seat; 222, fixed seat; 223, through mouth; 224, shaft tube; 225, mechanical seal; 226, gear ring; 31, mounting plate; 32, convex teeth; 241, pressure plate; 242, shaft column; 243, torsion spring; 244, top block. DETAILED DESCRIPTION

[0038] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0039] The utility model embodiment specifically provides a plastic bottle preform heater, please refer to Figure 1 , including a body 1 and a heat insulation seat 2.

[0040] Among them, a conveyor belt 11 is installed on the machine body 1, and the bottle preform 12 is transported and heated by the conveyor belt 11. The heat insulation seat 2 is installed on the conveyor belt 11, and the bottle preform 12 is installed through the heat insulation seat 2, and the part of the bottle preform that does not need to be heated is insulated and protected. A convex ring 13 is integrally arranged on the outer side of the bottom of the bottle preform 12, and the bottom of the convex ring 13 is integrally fixed with the bottle mouth 14. A heating component 15 is arranged inside the machine body 1. When the bottle preform 12 is sent into the heating chamber inside the machine body 1 through the conveyor belt 11, the bottle preform 12 can be heated by the heating component 15 to meet the production and processing needs.

[0041] For details, please refer to Figure 2The heat-insulating seat 2 includes a heat-insulating tube 21, a mounting seat 22, a heat-insulating ring 23 and a discharge mechanism 24. The bottom of the heat-insulating tube 21 is fixedly mounted on the mounting seat 22. The bottom of the mounting seat 22 is fixedly connected to the conveyor belt 11. The heat-insulating ring 23 is arranged on the inner side of the heat-insulating tube 21. The bottom of the bottle preform 12 is plugged into the heat-insulating tube 21, so that the heat-insulating ring 23 is used to insulate the upper part of the portion where the bottle preform 12 is inserted into the heat-insulating tube 21, so as to reduce the heat from penetrating into the heat-insulating tube 21. The discharge mechanism 24 is installed at the bottom of the heat-insulating tube 21, so that the bottle preform 12 can be quickly separated from the heat-insulating tube 21 through the discharge mechanism 24.

[0042] For further information, please refer to Figure 3 The heat-insulating cylinder 21 includes a cylinder body 211 and a plug 212. The cylinder body 211 is fixedly arranged on the surface of the mounting seat 22. The plug 212 is coaxially arranged inside the cylinder body 211, and the bottom of the plug 212 is fixed to the mounting seat 22. The bottle mouth 14 is inserted on the outside of the plug 212, so that the bottom of the bottle preform 12 can be stably fitted and plugged with the plug 212 through the bottle mouth 14, thereby meeting the heating needs of the bottle body of the bottle preform 12.

[0043] Among them, the inner periphery of the insulation ring 23 is a rounded structure, which is convenient for the upper and lower installation of the convex ring 13. The upper surface of the convex ring 13 is fitted with the insulation ring 23, and the inner side of the insulation ring 23 is fitted with the bottle embryo 12. The insulation ring 23 is made of insulation rubber, which is conducive to the elastic insertion of the convex ring 13. The insulation ring 23 reduces the flow of external heat entering the cylinder 211, so as to improve the insulation protection of the convex ring 13 and the bottle mouth 14.

[0044] During implementation, a heat insulating layer 213 is attached to the inner wall of the cylinder 211 to improve the heat insulating effect inside the cylinder 211 through the heat insulating layer 213 to reduce the heat received by the convex ring 13 and the bottle mouth 14.

[0045] Furthermore, the mounting seat 22 includes a rotating seat 221 and a fixed seat 222. The bottom of the rotating seat 221 is rotatably mounted on the fixed seat 222. The bottom of the fixed seat 222 is fixed to the conveyor belt 11. The upper surface of the fixed seat 222 is fixed to the cylinder 211 and the plug 212, so that the fixed seat 222 is driven to move by the conveyor belt 11, so that the bottle embryo 12 can be moved and heated.

[0046] The rotating seat 221 is provided with a through opening 223 penetrating the upper and lower surfaces, and the fixed seat 222 is provided with a shaft tube 224. The top of the shaft tube 224 is rotatably connected to the through opening 223, so that the shaft tube 224 can be connected to the injection mechanism on the conveyor belt 11, so that when it is necessary to inject a heating medium into the preform 12 to help uniform heating, the heating medium can be injected into the through opening 223 through the shaft tube 224.

[0047] The plug post 212 has a through hole 214 inside that communicates with the preform 12 . The bottom of the through hole 214 communicates with the through port 223 , so that the heating medium is injected into the through hole 214 through the through port 223 and into the preform 12 through the through hole 214 .

[0048] Specifically, the outside of the shaft tube 224 is embedded in the mechanical seal 225, so that the shaft tube 224 is rotatably installed inside the mechanical seal 225, and the outer side of the mechanical seal 225 is rotatably connected to the rotating seat 221 and the fixed seat 222, so that the rotating seat 221 and the fixed seat 222 can maintain rotational coordination through the mechanical seal 225 and avoid leakage of the heating medium to meet subsequent use needs.

[0049] For further information, please refer to Figure 2 and Figure 3 The inner side of the cylinder 211 and the heat insulation layer 213 is provided with an embedding groove 215. The unloading mechanism 24 is symmetrically arranged at two locations on the cylinder 211. The unloading mechanism 24 is a structure that is inclined downward from the outside to the inside, so as to block the embedding groove 215 and reduce the amount of external heat that penetrates into the cylinder 211 through the embedding groove 215. The unloading mechanism 24 includes a pressing plate 241, a shaft column 242, a torsion spring 243 and a top block 244. The outer side of the pressing plate 241 is rotatably mounted on the cylinder through the shaft column 242 and the embedding groove 215. 211, so that the pressing plate 241 can stably rotate on the cylinder 211, the shaft column 242 is installed with a torsion spring 243 for resetting, the bottom of the top block 244 is fixed to the pressing plate 241 as a whole, and the top of the top block 244 is in contact with the bottle mouth 14. When implemented, by pressing the outer end of the pressing plate 241, the pressing plate 241 can push the bottle mouth 14 upward through the top block 244 through the lever principle, so as to drive the convex ring 13 to move out of the insulation ring 23, thereby improving the convenience of taking out the bottle embryo 12.

[0050] Furthermore, a gear ring 226 is fixedly mounted on the outer side of the rotary seat 221, and a mounting plate 31 is fixedly mounted on one side of the heating assembly 15 close to the rotary seat 221. A convex tooth 32 is fixedly arranged on the mounting plate 31. The outer side of the gear ring 226 meshes with the convex tooth 32, so that when the preform 12 is fed into the heating chamber inside the body 1 through the fixed seat 222, the outer side of the rotary seat 221 can be brought into contact and mesh with the convex tooth 32 through the gear ring 226, so that when the fixed seat 222 moves, the rotary seat 221 rotates, and drives the preform 12 to rotate, so that the preform 12 can be heated evenly, thereby improving the heating efficiency.

[0051] It is worth noting that the materials of the cylinder 221 and the heat insulation layer 213 are respectively high temperature resistant silica gel and heat insulation rubber felt, which have strong high temperature resistance and heat insulation performance, and can improve the heat insulation protection of the convex ring 13 and the bottle mouth 14.

[0052] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 plastic bottle preform heater, characterized in that: It comprises a machine body (1) and a heat-insulating seat (2); A conveyor belt (11) is installed on the machine body (1), and the preform (12) is transported and heated by the conveyor belt (11), and the heat insulation seat (2) is installed on the conveyor belt (11); The heat-insulating seat (2) comprises a heat-insulating cylinder (21), a mounting seat (22), a heat-insulating ring (23) and a discharge mechanism (24); the bottom of the heat-insulating cylinder (21) is fixedly mounted on the mounting seat (22); the bottom of the mounting seat (22) is fixedly connected to the conveyor belt (11); the heat-insulating ring (23) is arranged on the inner side of the heat-insulating cylinder (21); the bottom of the bottle preform (12) is plugged into the heat-insulating cylinder (21); and the discharge mechanism (24) is installed on the bottom of the heat-insulating cylinder (21) so that the bottle preform (12) and the heat-insulating cylinder (21) can be quickly separated by the discharge mechanism (24).

2. A plastic bottle preform heater according to claim 1, characterized in that: The outer side of the bottom of the bottle preform (12) is integrally provided with a convex ring (13), the bottom of the convex ring (13) is integrally fixed with the bottle mouth (14), the heat insulation cylinder (21) comprises a cylinder body (211) and a plug post (212), the cylinder body (211) is fixedly arranged on the surface of the mounting seat (22), the plug post (212) is coaxially arranged inside the cylinder body (211), and the bottom of the plug post (212) is fixed with the mounting seat (22), and the bottle mouth (14) is inserted on the outer side of the plug post (212).

3. A plastic bottle preform heater according to claim 2, characterized in that: The inner peripheral edge of the heat insulating ring (23) is a rounded structure, the upper surface of the convex ring (13) is fitted with the heat insulating ring (23), and the inner side of the heat insulating ring (23) is fitted with the bottle embryo (12).

4. A plastic bottle preform heater according to claim 3, characterized in that: The inner wall of the cylinder (211) is provided with a heat insulation layer (213).

5. A plastic bottle preform heater according to claim 4, characterized in that: The mounting seat (22) comprises a rotating seat (221) and a fixed seat (222); the bottom of the rotating seat (221) is rotatably mounted on the fixed seat (222); the bottom of the fixed seat (222) is fixed to the conveyor belt (11); and the upper surface of the fixed seat (222) is fixed to the cylinder (211) and the plug post (212).

6. A plastic bottle preform heater according to claim 5, characterized in that: The rotating seat (221) is provided with a through opening (223) penetrating the upper and lower surfaces. The fixed seat (222) is provided with a shaft tube (224) inside. The top of the shaft tube (224) is rotatably connected to the through opening (223).

7. A plastic bottle preform heater according to claim 6, characterized in that: The shaft tube (224) is externally embedded and installed in the mechanical seal (225), and the outer side of the mechanical seal (225) is rotatably connected to the rotating seat (221) and the fixed seat (222).

8. A plastic bottle preform heater according to claim 7, characterized in that: A through hole (214) communicating with the bottle embryo (12) is provided inside the plug post (212), and the bottom of the through hole (214) is communicated with the through opening (223).

9. A plastic bottle preform heater according to claim 8, characterized in that: The inner sides of the cylinder (211) and the heat insulation layer (213) are provided with an embedding groove (215); the unloading mechanism (24) is symmetrically arranged at two locations on the cylinder (211); the unloading mechanism (24) comprises a pressing plate (241), a shaft column (242), a torsion spring (243) and a top block (244); the outer side of the pressing plate (241) is rotatably mounted on the cylinder (211) through the shaft column (242) and the embedding groove (215); a torsion spring (243) for resetting is mounted on the shaft column (242); the bottom of the top block (244) is fixed integrally with the pressing plate (241), and the top of the top block (244) is in contact with the bottle mouth (14).

10. A plastic bottle preform heater according to claim 9, characterized in that: A gear ring (226) is fixedly mounted on the outer side of the rotating seat (221); a heating component (15) is arranged inside the machine body (1); a mounting plate (31) is fixedly mounted on the side of the heating component (15) close to the rotating seat (221); a convex tooth (32) is fixedly mounted on the mounting plate (31); and the outer side of the gear ring (226) is meshed with the convex tooth (32).

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