Plastic uptake forming device for food packaging box

Abstract

The utility model discloses a food packaging box plastic uptake forming device, which relates to the technical field of plastic uptake forming and comprises a box body, a feed port and a discharge port are arranged on two sides of the box body, and a controller and a maintenance window are arranged on the side surface of the box body between the feed port and the discharge port. A supporting unit, a first supporting assembly and a second supporting assembly are arranged in the box body, a heating assembly is installed on the first supporting assembly, and a containing base is installed on the second supporting assembly. The device has the beneficial effects that a first hydraulic cylinder, a second hydraulic cylinder, a sliding block, a screw rod and a motor drive a supporting plate to move along with a heated film material, so that the supporting plate supports the film material in the moving process, the form of the heated film material is guaranteed, deformation of the heated film material due to gravity in the moving process is effectively reduced, and the service life of the heated film material is prolonged. The non-uniform thickness of the blister formed packaging box caused by deformation is avoided, the forming quality of the blister food packaging box is guaranteed, and generation and waste of defective products are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum forming, in particular to a vacuum forming device for a food packaging box. Background Art

[0002] In the daily sales of products, in order to ensure that the products are not damaged or contaminated, packaging boxes are generally used to package the products. Blister packaging boxes are one of the frequently used packaging boxes. Generally, people use a feeding device when manufacturing blister packaging boxes. Plastic packaging boxes usually use a packaging blister process to produce plastic products, and use corresponding equipment to package the products. For plastic packaging boxes, the blister packaging box sheet needs to be heated at high temperature and then vacuum-absorbed and cooled to form a plastic box.

[0003] After searching, the Chinese patent publication number CN217752728U discloses a blister forming machine for food packaging boxes, which mainly realizes the continuous processing of blister forming of food packaging boxes through the cooperation of a lower mold, an upper mold, two cavities, etc., and improves the efficiency of the forming process.

[0004] By comparing the existing technologies in related fields, it can be seen that in order to improve production efficiency, existing blister forming devices all use a whole roll of film material for feeding, first heat the film material, and then move the heated film material to the mold for blister forming. The film material becomes soft after heating. During the movement, the center of the film material is subjected to a large downward force, which can easily cause the center of the film material to deform, resulting in uneven thickness of the formed packaging box, poor forming quality, and waste. Utility Model Content

[0005] The purpose of the utility model is to provide a food packaging box blister forming device in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A food packaging box blister forming device comprises a box body, a material feed port and a material discharge port are arranged on both sides of the box body, a controller and a maintenance window are arranged on the side of the box body between the material feed port and the material discharge port, a support unit, a first support assembly and a second support assembly are arranged inside the box body, a material guide assembly is arranged in the material feed port, a heating assembly is installed on the first support assembly, and a placement seat is installed on the second support assembly, the controller, the first support assembly, the second support assembly, the material guide assembly, the heating assembly and the placement seat work using the existing technology, the first support assembly, the second support assembly, the material guide assembly, the heating assembly and the placement seat are electrically connected to the controller, and the controller and the external The power sources are electrically connected, the operation of the entire blister forming device is controlled by a controller, the interior of the box is easily inspected through a maintenance window, the blister mold is installed on the placement seat, the film material enters the box through the feed port, the film material is guided and limited by the material guide assembly, the heating assembly is driven to move to the film material through the first support assembly, the film material is heated by the heating assembly, and the heated film material is moved to the placement seat position. During the movement, the film material is supported by the support unit, and the second support assembly drives the mold to contact the film material through the placement seat, so that the film material is blister-formed into a packaging box, and the formed packaging box is discharged and collected through the discharge port;

[0008] The supporting unit comprises a supporting frame, which is installed on both sides of the interior of the box body, a displacement component is arranged on the supporting frame, a slider is arranged on the displacement component, the slider is slidably connected to the box body, an adjusting component is installed on the slider, a supporting plate is arranged on the adjusting component, an air guide valve is arranged on the supporting plate, an air guide hole is arranged inside the supporting plate, an air outlet hole is arranged on the surface of the supporting plate, the air outlet hole is connected to the air guide valve through the air guide hole, the air guide valve is connected to an external blowing device, the supporting plate is driven to enter under the heated film material through the adjusting component, the heated film material is supported by the supporting plate, and the supporting plate is driven to move with the film material through the displacement component, so that The support plate supports the film material during the movement to ensure the shape of the film material after heating, thereby effectively reducing the deformation of the heated film material due to gravity, avoiding uneven thickness of the blister-formed packaging box due to deformation, ensuring the molding quality of the blister food packaging box, and reducing the generation and waste of defective products. When the support plate enters under the film material to support the film material, the external air blowing device blows air into the air guide hole through the air guide valve and sprays it out through the air guide hole, thereby forming an airflow above the support plate, reducing the contact between the support plate and the film material during movement, allowing the support plate to better enter under the film material, and avoiding deformation of the film material caused by the support plate.

[0009] Furthermore, the displacement assembly on the support frame includes a screw and a motor. The screw is rotatably installed on the support frame, the screw is threadedly connected to the slider, the motor is installed on the support frame, the output shaft of the motor is connected to the screw, the motor and the controller are electrically connected, the motor works using existing technology, and the motor drives the slider to move through the screw.

[0010] Furthermore, the adjustment component on the slider includes a first hydraulic cylinder, which is installed on the slider, and a mounting frame is installed on the telescopic end of the first hydraulic cylinder, and a second hydraulic cylinder is installed on the side of the mounting frame, and the telescopic end of the second hydraulic cylinder is connected to the support plate. The first hydraulic cylinder, the second hydraulic cylinder and the controller are electrically connected, and the first hydraulic cylinder and the second hydraulic cylinder work using existing technology. The height of the support plate is adjusted by the first hydraulic cylinder, and the position of the support plate under the film material is adjusted by the second hydraulic cylinder.

[0011] Furthermore, the opposite sides of the two support plates are arc-shaped surfaces. Through the arrangement of the arc-shaped surfaces, the support plates can better enter under the film material to support the film material.

[0012] Furthermore, a temperature control unit is installed on the placement seat, and the temperature control unit includes a heat exchange tube and a valve seat. The heat exchange tube is arranged in the placement seat. There are two valve seats and both are arranged on the side of the placement seat. The two valve seats are respectively connected to the two ends of the heat exchange tube, and the two valve seats are respectively connected to the inlet and outlet ends of the external cold and hot temperature control components. The external cold and hot temperature control group alternately transports cold and hot fluids in the heat exchange tube through the valve seat, thereby heating or cooling the placement seat.

[0013] Furthermore, an observation window is provided on the side of the box, and a transparent plate is installed in the observation window, so that the interior of the box can be easily observed through the observation window and the transparent plate.

[0014] Furthermore, a placement groove is provided on the surface of the heating component, a temperature sensor is installed in the placement groove, the temperature sensor and the controller are electrically connected, the temperature sensor works using existing technology, and the temperature of the heating component is monitored by the temperature sensor.

[0015] The beneficial effects compared with the prior art are as follows:

[0016] 1. The first hydraulic cylinder and the second hydraulic cylinder are used to make the support plate enter under the heated film material, support the heated film material through the support plate, and drive the support plate to move with the film material through the slider, the screw and the motor, so that the support plate supports the film material during the movement, ensures the shape of the heated film material, effectively reduces the deformation of the heated film material due to gravity during the movement, avoids the uneven thickness of the blister formed packaging box due to deformation, ensures the quality of the blister food packaging box, and reduces the generation and waste of defective products; when the support plate supports the film material, the arc surface design at the end of the support plate and the external air blowing device form an air flow above the support plate through the air guide valve, the air guide hole and the air guide hole, so that the support plate can better enter under the film material, reduce the contact between the support plate and the film material during the movement, and avoid the deformation of the film material due to the support plate.

[0017] 2. During blister forming, the external hot and cold temperature control component transports heating fluid into the heat exchange tube through the valve seat to heat the mold in the placement seat, and heats and keeps the film material warm during the blister forming process, so that the film material can flow better during the blister forming process, and the air during blister forming can be better discharged to ensure the quality of the blister forming of the food packaging box. After the blister forming is completed, the external hot and cold temperature control group transports cooling fluid into the heat exchange tube through the valve seat to cool the mold in the placement seat, thereby quickly cooling the formed food packaging box, effectively improving the cooling efficiency of the blister formed food packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of a food packaging box blister forming device according to the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a support unit of a food packaging box blister forming device according to the utility model;

[0021] Figure 3 The utility model is a food packaging box blister forming device Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of a support plate of a food packaging box blister forming device described in the utility model;

[0023] Figure 5 The utility model is a food packaging box blister forming device Figure 4 The enlarged structural diagram at B in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the first supporting assembly and the placement seat of a food packaging box blister forming device described in the utility model;

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of a placement seat of a food packaging box blister forming device described in the utility model;

[0026] Figure 8 This is a schematic diagram of the connection structure of a heating component and a temperature sensor of a food packaging box blister forming device described in the utility model;

[0027] Fig. 9 It is a schematic diagram of the overall structure of a food packaging box blister forming device described in the utility model;

[0028] Fig.10 The utility model is a schematic diagram of the side structure of a food packaging box blister forming device.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Box body; 2. Support unit; 21. Support frame; 22. Screw; 23. Motor; 24. Slider; 25. First hydraulic cylinder; 26. Mounting frame; 27. Second hydraulic cylinder; 28. Support plate; 29. ​​Air valve; 210. Air hole; 211. Air outlet; 3. Temperature control unit; 31. Heat exchange tube; 32. Valve seat; 4. First support assembly; 5. Heating assembly; 6. Second support assembly; 7. Placement seat; 8. Feed inlet; 9. Material guide assembly; 10. Discharge port; 11. Observation window; 12. Transparent plate; 13. Controller; 14. Maintenance window; 15. Placement slot; 16. Temperature sensor. DETAILED DESCRIPTION

[0031] like Figure 1-Figure 10 As shown, a food packaging box blister forming device includes a box body 1, a feed port 8 and a discharge port 10 are arranged on both sides of the box body 1, a controller 13 and a maintenance window 14 are arranged on the side of the box body 1 located between the feed port 8 and the discharge port 10, a support unit 2, a first support assembly 4 and a second support assembly 6 are arranged inside the box body 1, a material guide assembly 9 is arranged in the feed port 8, a heating assembly 5 is installed on the first support assembly 4, and a placement seat 7 is installed on the second support assembly 6. The controller 13, the first support assembly 4, the second support assembly 6, the material guide assembly 9, the heating assembly 5 and the placement seat 7 work using the existing technology, the first support assembly 4, the second support assembly 6, the material guide assembly 9, the heating assembly 5 and the placement seat 7 are electrically connected to the controller 13, and the controller 13 and an external power supply are electrically connected, as shown in FIG. Fig. 9 , Fig.10 As shown, the operation of the entire blister forming device is controlled by the controller 13, and the interior of the box body 1 is easily inspected through the maintenance window 14. Figure 1 , Figure 6 , Figure 7 As shown, the blister mold is installed on the placement seat 7, as shown in FIG. Figure 1 , Fig. 9 , Fig.10As shown, the film material enters the box body 1 through the feed port 8, and the film material is guided and limited by the material guide component 9, so that the film material can enter the box body 1 better, and the heating component 5 is driven by the first support component 4 to move to the film material, and the film material is heated by the heating component 5, and the heated film material moves to the position of the placement seat 7. During the movement, the film material is supported by the support unit 2, and the second support component 6 drives the mold to contact the film material through the placement seat 7, so as to perform vacuum forming of the film material into a packaging box, and the formed packaging box is pulled by an external traction device, and the formed packaging box is discharged and collected through the discharge port 10;

[0032] The support unit 2 includes a support frame 21, which is installed on both sides of the interior of the box body 1. A displacement component is provided on the support frame 21, a slider 24 is installed on the displacement component, and the slider 24 is slidably connected to the box body 1. An adjustment component is installed on the slider 24, and a support plate 28 is provided on the adjustment component. An air guide valve 29 is provided on the support plate 28. An air guide hole 210 is provided inside the support plate 28, and an air outlet hole 211 is provided on the surface of the support plate 28. The air outlet hole 211 is connected to the air guide valve 29 through the air guide hole 210, and the air guide valve 29 is connected to an external blowing device, such as Figure 1-Figure 5 As shown, after the heating component 5 heats the film material, the adjusting component drives the support plate 28 to move so that the support plate 28 enters under the heated film material, and the heated film material is supported by the support plate 28. When the heated position of the film material moves toward the placement seat 7 and the mold position, the displacement component drives the support plate 28 to move with the film material, so that the support plate 28 supports the film material during the movement, ensuring the shape of the heated film material, effectively reducing the deformation of the heated film material due to gravity, and avoiding the deformation of the film formed by the vacuum forming. The thickness of the box is uneven, which ensures the quality of the blister food packaging box molding and reduces the generation and waste of defective products. When the support plate 28 enters under the film material to support the film material, the external blowing device blows air into the air guide hole 210 through the air guide valve 29 and sprays it out through the air guide hole 210, thereby forming an airflow above the support plate 28, and the film material is blown by the airflow to make the film material float, so that the support plate 28 can better enter under the film material, reduce the contact between the support plate 28 and the film material during the movement, and avoid deformation of the film material due to the support plate 28.

[0033] The displacement assembly on the support frame 21 includes a screw 22 and a motor 23. The screw 22 is rotatably mounted on the support frame 21. The screw 22 is threadedly connected to the slider 24. The motor 23 is mounted on the support frame 21. The output shaft of the motor 23 is connected to the screw 22. The motor 23 is electrically connected to the controller 13. The motor 23 works using existing technologies, such as Figure 1 , Figure 2As shown, the motor 23 drives the screw 22 to rotate, and the screw 22 drives the slider 24 to move, so that the support plate 28 moves with the heated film material, so that the support plate 28 can better support the heated film material and effectively reduce the deformation of the film material during movement.

[0034] The adjustment assembly on the slider 24 includes a first hydraulic cylinder 25, which is mounted on the slider 24, a mounting frame 26 is mounted on the telescopic end of the first hydraulic cylinder 25, a second hydraulic cylinder 27 is mounted on the side of the mounting frame 26, and the telescopic end of the second hydraulic cylinder 27 is connected to a support plate 28. The first hydraulic cylinder 25, the second hydraulic cylinder 27 and the controller 13 are electrically connected, and the first hydraulic cylinder 25 and the second hydraulic cylinder 27 work using existing technologies, such as Figure 2 , Figure 3 As shown, the mounting frame 26 is moved by the first hydraulic cylinder 25, and the mounting frame 26 is moved by the second hydraulic cylinder 27 to drive the support plate 28 to adjust the height of the support plate 28, thereby avoiding the first hydraulic cylinder 25, the support plate 28 from colliding with the heating component 5 and the placement seat 7. After moving to a suitable height, the support plate 28 is moved by the second hydraulic cylinder 27 to move to the bottom of the film material, so that the support plate 28 supports the heated film material.

[0035] The opposite sides of the two support plates 28 are arc-shaped surfaces, such as Figure 2 , Figure 4 , Figure 5 As shown, by setting the arc surface, the support plate 28 can better enter under the film material to support the film material.

[0036] The placement seat 7 is provided with a temperature control unit 3, which includes a heat exchange tube 31 and a valve seat 32. The heat exchange tube 31 is provided in the placement seat 7, and there are two valve seats 32, both of which are provided on the side of the placement seat 7. The two valve seats 32 are connected to both ends of the heat exchange tube 31, respectively. Figure 1 , Figure 6 , Figure 7 As shown, the two valve seats 32 are respectively connected to the inlet and outlet ends of the external cold and hot temperature control component. When the mold on the placement seat 7 is blistering the film material, the external cold and hot temperature control component transports the heating fluid to the heat exchange tube 31 through the valve seat 32, thereby heating the mold in the placement seat 7, thereby heating and keeping the film material warm during the blistering process, so that the film material can flow better during the blistering process, and the air during the blistering can be better discharged, thereby ensuring the quality of the blistering of the food packaging box. After the blistering is completed, the external cold and hot temperature control component transports the cooling fluid to the heat exchange tube 31 through the valve seat 32, thereby cooling the mold in the placement seat 7, thereby quickly cooling the formed food packaging box, and effectively improving the cooling efficiency of the blister-formed food packaging box.

[0037] The side of the box body 1 is provided with an observation window 11, and a transparent plate 12 is installed in the observation window 11. Fig. 9 , Fig.10 As shown, during the blister forming process of the food packaging box, the interior of the box body 1 can be easily observed through the observation window 11 and the transparent plate 12, so as to facilitate understanding of the blister forming process.

[0038] The surface of the heating component 5 is provided with a placement groove 15, and a temperature sensor 16 is installed in the placement groove 15. The temperature sensor 16 is electrically connected to the controller 13. The temperature sensor 16 works by adopting existing technology, such as Figure 8 As shown, when the heating component 5 heats the film material of the blister, the temperature of the heating component 5 is monitored by the temperature sensor 16, so as to facilitate the control of the heating temperature of the heating component 5 and avoid the influence of too high or too low temperature on the quality of the blister-formed packaging box.

[0039] Working principle: Figure 1 , Figure 6 , Figure 7 As shown, the blister mold is installed on the placement seat 7, as shown in FIG. Figure 1 , Fig. 9 , Fig.10 As shown, the film material enters the box body 1 through the feed port 8, and the film material is guided and limited by the material guide component 9, and the film material moves to the position of the heating component 5, and the heating component 5 is driven to move to the film material by the first support component 4, and the film material is heated by the heating component 5; when the heating component 5 heats the film material of the blister, as shown in FIG. Figure 8 As shown, the temperature of the heating component 5 is monitored by the temperature sensor 16;

[0040] After the film material is heated, Figure 2 , Figure 3 As shown, the mounting frame 26 is driven to move by the first hydraulic cylinder 25, and the mounting frame 26 drives the support plate 28 to move by the second hydraulic cylinder 27, and the height of the support plate 28 is adjusted so that the support plate 28 moves to a suitable height, and the support plate 28 is driven to move by the second hydraulic cylinder 27 so that the support plate 28 moves to the bottom of the film material, and the heated film material is supported by the support plate 28;

[0041] like Figure 2 , Figure 3 As shown, when the support plate 28 moves below the film material, as shown in Figure 2 , Figure 4 , Figure 5 As shown, by setting the arc surface, the support plate 28 can better enter under the film material. Figure 4 , Figure 5As shown, the external air blowing device blows air into the air guide hole 210 through the air guide valve 29, and sprays air through the air guide hole 210, thereby forming an airflow above the support plate 28, and the film material is blown by the airflow, so that the film material floats, so that the support plate 28 can better enter under the film material;

[0042] like Figure 1 As shown, when the film material heating position moves toward the placement seat 7 and the mold position, as shown in FIG. Figure 1 , Figure 2 As shown, the motor 23 drives the screw 22 to rotate, and the screw 22 drives the slider 24 to move, so that the support plate 28 moves with the heated film material, and the support plate 28 supports the film material during the movement, thereby reducing the deformation of the heated film material due to gravity;

[0043] like Figure 1 , Figure 6 As shown, the second support assembly 6 drives the mold to contact the film material through the placement seat 7, so as to perform vacuum forming of the film material into a packaging box; Figure 1 , Figure 6 , Figure 7 As shown, when the mold on the placement seat 7 is performing vacuum forming on the film material, the external cold and hot temperature control component transports the heating fluid into the heat exchange tube 31 through the valve seat 32, thereby heating the mold in the placement seat 7, thereby heating and keeping the film material warm during the vacuum forming process; after the vacuum forming is completed, the external cold and hot temperature control component transports the cooling fluid into the heat exchange tube 31 through the valve seat 32, thereby cooling the mold in the placement seat 7, thereby quickly cooling the formed food packaging box;

[0044] like Figure 1 , Fig. 9 , Fig.10 As shown, after the food packaging box is formed by vacuum forming, the formed packaging box is pulled by an external traction device, and the formed packaging box is discharged and collected through the discharge port 10.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A food packaging box blister forming device, characterized in that: The invention comprises a box body (1), wherein a feed port (8) and a discharge port (10) are arranged on both sides of the box body (1), a controller (13) and a maintenance window (14) are arranged on the side of the box body (1) between the feed port (8) and the discharge port (10), a support unit (2), a first support assembly (4) and a second support assembly (6) are arranged inside the box body (1), a material guide assembly (9) is arranged inside the feed port (8), a heating assembly (5) is installed on the first support assembly (4), and a placement seat (7) is installed on the second support assembly (6); The support unit (2) comprises a support frame (21), the support frame (21) being mounted on both sides of the interior of the box body (1), a displacement assembly being arranged on the support frame (21), a slider being mounted on the displacement assembly, the slider (24) being slidably connected to the box body (1), an adjustment assembly being mounted on the slider (24), a support plate (28) being arranged on the adjustment assembly, an air guide valve (29) being arranged on the support plate (28), an air guide hole (210) being arranged inside the support plate (28), an air outlet hole (211) being arranged on the surface of the support plate (28), the air outlet hole (211) being connected to the air guide valve (29) through the air guide hole (210).

2. A food packaging box blister forming device according to claim 1, characterized in that: The displacement assembly on the support frame (21) comprises a screw rod (22) and a motor (23); the screw rod (22) is rotatably mounted on the support frame (21); the screw rod (22) is threadedly connected to the slider (24); the motor (23) is mounted on the support frame (21); and the output shaft of the motor (23) is connected to the screw rod (22).

3. A food packaging box blister forming device according to claim 1, characterized in that: The adjustment assembly on the slider (24) comprises a first hydraulic cylinder (25), the first hydraulic cylinder (25) is mounted on the slider (24), a mounting frame (26) is mounted on the telescopic end of the first hydraulic cylinder (25), a second hydraulic cylinder (27) is mounted on the side of the mounting frame (26), and the telescopic end of the second hydraulic cylinder (27) is connected to the support plate (28).

4. A food packaging box blister forming device according to claim 1, characterized in that: The opposite side surfaces of the two support plates (28) are arc-shaped surfaces.

5. The food packaging box blister forming device according to claim 1, characterized in that: A temperature control unit (3) is installed on the placement seat (7), and the temperature control unit (3) comprises a heat exchange tube (31) and a valve seat (32). The heat exchange tube (31) is arranged in the placement seat (7), and there are two valve seats (32) both of which are arranged on the side of the placement seat (7). The two valve seats (32) are respectively connected to the two ends of the heat exchange tube (31).

6. A food packaging box blister forming device according to claim 1, characterized in that: An observation window (11) is provided on the side of the box body (1), and a transparent plate (12) is installed in the observation window (11).

7. The food packaging box blister forming device according to claim 1, characterized in that: A placement groove (15) is provided on the surface of the heating component (5), and a temperature sensor (16) is installed in the placement groove (15).

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