Automatic thermal shrinkage packaging machine

Abstract

The utility model discloses an automatic thermal shrinkage packaging machine which comprises a heating box, the lower surface of the heating box is fixedly connected with a supporting frame, a hot air cavity, an air suction pipe and a draught fan are arranged in the heating box, an air inlet of the draught fan is fixedly connected with the air suction pipe, an air outlet of the draught fan is fixedly connected with a conveying pipe, and the conveying pipe is fixedly connected with the hot air cavity. An air opening is formed in the heating box, the end, away from the draught fan, of the conveying pipe fixedly communicates with the heating box through the air opening, and a fin heating pipe is arranged in the heating box. By means of the structure, the interior of the heating box is heated through the fin heating pipe firstly, so that heat shrinkage is conducted on a packaging film, then hot air is conveyed into the hot air cavity through the conveying pipe by means of the draught fan to be stored for standby application, heat is conducted again through the air opening, heat loss can be reduced, and the generated heat is reused.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrink packaging, and particularly relates to an automatic heat shrink packaging machine. Background Art

[0002] In the prior art, before the daily necessities after processing are shipped out by manufacturers, in order to save cartons, a heat shrink film packaging machine is needed to package the finished products with a heat shrinkable plastic film. For example, the Chinese patent discloses a heat shrink film sealing machine with the application number: CN200420015721.1. It sets a pressurizing, melting, cutting and sealing mechanism between the guide shafts, sets the heating and shrinking box at the lower part of the whole machine and on the left side of the pressurizing, melting, cutting and sealing mechanism, and sets a guide body between the material roll and the waste winding roll. When the mechanism with upper and lower strip-shaped thermal fusing wires is pressurized and closed, the packaging work can be automatically realized and separated from the material tape by melting and cutting. The cutting effect is good, but there is more heat loss during the heating process, so the energy consumption is more, and the heat is not reused. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an automatic heat shrink packaging machine. First, the inside of the heating box is heated by a finned heating tube to thermally shrink the packaging film, and then the hot air is sent into the hot air cavity through a conveying pipe by a blower, and the heat is conducted again through the air outlet, which can reduce the heat loss and make the generated heat reused.

[0004] The present utility model further provides an automatic heat shrink packaging machine having the above-mentioned features, including: a support frame, on the upper surface of which a vertical plate, a first motor and a second motor are fixedly connected; the output end of the first motor is fixedly connected to a first roller, and a conveyor belt is connected to the outside of the first roller in a conveying manner; one end of the first roller away from the first motor is rotatably connected to the vertical plate; a fixing frame is fixedly connected to the side surface of the support frame, and a control module and a positioning roller are fixedly connected inside the fixing frame; the control module is electrically connected to a blower and a cold air blower; a cylinder is fixedly connected inside the support frame, the output end of the cylinder is fixedly connected to a mating block, a cutting knife is fixedly connected to the lower surface of the mating block, a guide rod is slidably connected inside the mating block, the lower end of the guide rod is fixedly connected to the support frame, and a limiting strip is fixedly connected to the upper end of the guide rod; the output end of the second motor is fixedly connected to a second roller, and a chain belt is connected to the outside of the second roller in a conveying manner; one end of the second roller away from the second motor is rotatably connected to the vertical plate; a heating box, the lower surface of which is fixedly connected to the support frame, and a hot air chamber, a suction air pipe and a blower are arranged inside the heating box; the air inlet of the blower is fixedly connected to the suction air pipe, the air outlet of the blower is fixedly connected to a conveying pipe, an air outlet is arranged inside the heating box, and the end of the conveying pipe away from the blower is fixedly and communicatively connected to the heating box through the air outlet; fin heating tubes are arranged inside the heating box, and a cold air blower is fixedly connected inside the fixing frame. Through the above components, first, the inside of the heating box is heated by the fin heating tubes, so as to heat-shrink the packaging film, and then the hot air is sent into the hot air chamber through the conveying pipe by the blower, and the heat is conducted again through the air outlet, which can reduce the loss of heat and make the generated heat be reused again.

[0005] For an automatic heat shrink packaging machine according to the present utility model, a feeding port and a discharging port are respectively arranged on two sides of the heating box. Through the above components, a passage for articles to enter and exit is provided.

[0006] For an automatic heat shrink packaging machine according to the present utility model, shielding curtains are arranged at both the feeding port and the discharging port, and the upper surface of the shielding curtain is rotatably connected to the heating box through a horizontal shaft. Through the above components, the heat loss inside the heating box can be reduced by the shielding curtains.

[0007] For an automatic heat shrink packaging machine according to the present utility model, two rotary elastic members are arranged at the connection between the shielding curtain and the heating box, and the two rotary elastic members are located outside the horizontal shaft. Through the above components, when the shielding curtain is pushed open by an article, it can quickly return to its original position, reducing the heat loss.

[0008] An automatic heat shrink packaging machine according to the present utility model, wherein the positioning roller is located on the side of the conveyor belt, and a roll of film is placed outside the positioning roller. Through the above components, it is the part for placing the roll of film.

[0009] An automatic heat shrink packaging machine according to the present utility model, wherein a handwheel is fixedly connected to the outside of the positioning roller. Through the above components, the outside of the roll of film is fixed to prevent lateral deviation during rotation.

[0010] An automatic heat shrink packaging machine according to the present utility model, wherein the finned heating tube is located inside the hot air chamber. Through the above components, the inside of the heating box is heated to thermally shrink the film wrapped on the article.

[0011] An automatic heat shrink packaging machine according to the present utility model, wherein the cold air blower is located at the discharge port of the heating box, and a collection table is fixedly connected to the side surface of the support frame. Through the above components, it is a platform for collecting the packaged articles.

[0012] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0014] Figure 1 It is the complete structure diagram of the automatic heat shrink packaging machine of the present utility model;

[0015] Figure 2 It is the sectional structure diagram of the automatic heat shrink packaging machine of the present utility model;

[0016] Figure 3 It is the internal structure diagram of the heating box of the automatic heat shrink packaging machine of the present utility model;

[0017] Figure 4 It is the partial structure diagram at C of the automatic heat shrink packaging machine of the present utility model.

[0018] Legend Explanation:

[0019] 1. Support frame; 2. First motor; 3. Conveyor belt; 4. First roller; 5. Vertical plate; 6. Fixed frame; 7. Positioning roller; 8. Handwheel; 9. Cylinder; 10. Fitting block; 11. Cutter; 12. Control module; 13. Guide rod; 14. Limit strip; 15. Heating box; 16. Suction air pipe; 17. Fan; 18. Delivery pipe; 19. Finned heating pipe; 20. Cold air blower; 21. Feed inlet; 22. Discharge outlet; 23. Shading curtain; 24. Horizontal axis; 25. Rotary elastic member; 26. Hot air chamber; 27. Collection table; 28. Second motor; 29. Second roller; 30. Chain plate belt. Detailed implementation manners

[0020] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0021] Referring to Figures 1-4 , an automatic heat shrink packaging machine according to an embodiment of the present utility model includes: a support frame 1. The upper surface of the support frame 1 is fixedly connected with a vertical plate 5, a first motor 2 and a second motor 28, which provide power for the rotation of the first roller 4. The output end of the first motor 2 is fixedly connected with the first roller 4, driving the conveyor belt 3 to move. The outer part of the first roller 4 is connected with the conveyor belt 3 in a conveying manner to transport articles. One end of the first roller 4 away from the first motor 2 is rotatably connected with the vertical plate 5. The side surface of the support frame 1 is fixedly connected with a fixed frame 6 to support components. Inside the fixed frame 6 are fixedly connected a control module 12 and a positioning roller 7, which are components for fixing the winding film. The control module 12 is electrically connected with the fan 17, and the control module 12 is electrically connected with the cold air blower 20. Inside the support frame 1 is fixedly connected a cylinder 9 to provide driving force for the movement of components. The output end of the cylinder 9 is fixedly connected with a fitting block 10 to fix the cutter 11. The lower surface of the fitting block 10 is fixedly connected with a cutter 11 to cut the film. Inside the fitting block 10 is slidably connected a guide rod 13 to guide the movement of the fitting block 10. The lower end of the guide rod 13 is fixedly connected with the support frame 1, and the upper end of the guide rod 13 is fixedly connected with a limit strip 14. The output end of the second motor 28 is fixedly connected with a second roller 29, driving the movement of the chain plate belt 30. The outer part of the second roller 29 is connected with the chain plate belt 30 in a conveying manner. One end of the second roller 29 away from the second motor 28 is rotatably connected with the vertical plate 5;

[0022] The heating box 15, the lower surface of the heating box 15 is fixedly connected to the support frame 1. Inside the heating box 15, there is a hot air chamber 26, a space for storing heat. The suction air pipe 16 and the fan 17, the air inlet of the fan 17 is fixedly connected to the suction air pipe 16, and the air outlet of the fan 17 is fixedly connected to the conveying pipe 18. There is an air outlet inside the heating box 15 to blow out hot air. The end of the conveying pipe 18 far from the fan 17 is fixedly communicated with the heating box 15 through the air outlet. Inside the heating box 15, there is a fin heating pipe 19 to heat the inside of the heating box 15. The fin heating pipe 19 is located inside the hot air chamber 26. Inside the fixing frame 6, a cold air blower 20 is fixedly connected to cool the heat-sealed film. The cold air blower 20 is located at the discharge port 22 of the heating box 15. On the side surface of the support frame 1, a collection table 27 is fixedly connected.

[0023] On both sides of the heating box 15, there are respectively a feed inlet 21 and a discharge outlet 22. At both the feed inlet 21 and the discharge outlet 22, there is a shielding curtain 23 to block the feed inlet 21 and reduce the heat loss inside the heating box 15. The upper surface of the shielding curtain 23 is rotatably connected to the heating box 15 through a transverse shaft 24. At the connection between the shielding curtain 23 and the heating box 15, there are two rotary elastic members 25 to accelerate the rapid return of the shielding curtain 23. The two rotary elastic members 25 are located outside the transverse shaft 24, which are connecting components. The positioning roller 7 is located on the side of the conveyor belt 3. A roll of film is placed outside the positioning roller 7. A handwheel 8 is fixedly connected to the outside of the positioning roller 7 to fix the outside of the roll of film and prevent deviation during rotation.

[0024] Working principle: Place the roll of film in the positioning roller 7, reinforce the roll of film by rotating the handwheel 8, thread and lay the roll of film on the conveyor belt 3, place the item on the conveyor belt 3, start the first motor 2 to drive the roller one 4 so that the conveyor belt 3 transports the item, start the cylinder 9 to drive the mating block 10 to move on the guide rod 13, so that the cutter 11 on the mating block 10 cuts the film. After cutting is completed, start the second motor 28 to drive the roller two 29 so that the chain plate belt 30 moves. The chain plate belt 30 transports the item into the heating box 15. Connect the fin heating pipe 19 to the power supply to heat the inside of the heating box 15. Start the fan 17 to absorb the hot air in the box, so that the hot air enters the hot air chamber 26 and is then blown out through the air outlet for reusing the heat. Start the cold air blower 20 to cool the heat-sealed film. Finally, the packaged item is transported to the collection table 27.

[0025] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. An automatic heat shrink packaging machine, characterized in that: include: A support frame (1), wherein the upper surface of the support frame (1) is fixedly connected to a vertical plate (5), a No. 1 motor (2) and a No. 2 motor (28), the output end of the No. 1 motor (2) is fixedly connected to a roller (4), the external transmission of the roller (4) is connected to a conveyor belt (3), the end of the roller (4) away from the No. 1 motor (2) is rotatably connected to the vertical plate (5), the side surface of the support frame (1) is fixedly connected to a fixed frame (6), the interior of the fixed frame (6) is fixedly connected to a control module (12) and a positioning roller (7), the control module (12) is electrically connected to a fan (17), and the control module (12) is electrically connected to a cooling fan (20). The support frame (1) is fixedly connected to a cylinder (9) inside, the output end of the cylinder (9) is fixedly connected to a matching block (10), the lower surface of the matching block (10) is fixedly connected to a cutter (11), the matching block (10) is slidably connected to a guide rod (13) inside, the lower end of the guide rod (13) is fixedly connected to the support frame (1), the upper end of the guide rod (13) is fixedly connected to a limit strip (14), the output end of the second motor (28) is fixedly connected to a second roller (29), the external transmission of the second roller (29) is connected to a chain plate belt (30), and the end of the second roller (29) away from the second motor (28) is rotatably connected to the vertical plate (5); A heating box (15), wherein the lower surface of the heating box (15) is fixedly connected to the support frame (1), the interior of the heating box (15) is provided with a hot air cavity (26), an air suction pipe (16) and a fan (17), the air inlet of the fan (17) is fixedly connected to the air suction pipe (16), the air outlet of the fan (17) is fixedly connected to the delivery pipe (18), an air outlet is provided inside the heating box (15), one end of the delivery pipe (18) away from the fan (17) is fixedly connected to the heating box (15) through the air outlet, a fin heating pipe (19) is provided inside the heating box (15), and a cooling fan (20) is fixedly connected inside the fixed frame (6).

2. The automatic heat shrink packaging machine according to claim 1, characterized in that: A material inlet (21) and a material outlet (22) are respectively provided on both sides of the heating box (15).

3. The automatic heat shrink packaging machine according to claim 2, characterized in that: The feed port (21) and the discharge port (22) are both provided with a shielding curtain (23), and the upper surface of the shielding curtain (23) is rotatably connected to the heating box (15) via a transverse axis (24).

4. The automatic heat shrink packaging machine according to claim 3, characterized in that: Two rotating elastic members (25) are provided at the connection between the shielding curtain (23) and the heating box (15), and the two rotating elastic members (25) are located outside the horizontal axis (24).

5. The automatic heat shrink packaging machine according to claim 1, characterized in that: The positioning roller (7) is located on the side of the conveyor belt (3), and a roll of film is placed outside the positioning roller (7).

6. The automatic heat shrink packaging machine according to claim 1, characterized in that: A hand wheel (8) is fixedly connected to the outside of the positioning roller (7).

7. The automatic heat shrink packaging machine according to claim 1, characterized in that: The fin heating tube (19) is located inside the hot air cavity (26).

8. The automatic heat shrink packaging machine according to claim 1, characterized in that: The cooling fan (20) is located at the discharge port (22) of the heating box (15), and a collecting platform (27) is fixedly connected to the side surface of the support frame (1).

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