Automatic forming device for pre-folding lines of a packaging box

Abstract

The application discloses a kind of automatic forming devices of packing box pre-folding line, including conveyor belt, the top of the conveyor belt is fixedly connected with work bin, the top of the work bin is fixedly connected with angle adjusting mechanism, the angle adjusting mechanism is used to adjust angle, the top of the conveyor belt is fixedly connected with fixed mechanism, and the fixed mechanism is used to fix packing box;The angle adjusting mechanism includes long short plate, the long short plate is fixedly connected in the top of the inner wall of the work bin, and the bottom of the long short plate is fixedly connected with folding knife.The utility model discloses, fixed mechanism is driven screw column by motor, and long plate moves towards each other, and flexible protection pad clamping plate is utilized, and the drive cylinder of angle adjusting mechanism pushes T-shaped plate to move down, motor drives worm and half-round worm wheel to engage, so that folding knife rotates to target angle, then cylinder continues to press down, and folding knife is matched with folding groove to complete pre-folding line pressing.

Description

Technical Field

[0001] This utility model relates to the field of packaging box processing equipment technology, and in particular to an automatic pre-folding forming device for packaging boxes. Background Technology

[0002] Packaging boxes are containers used to hold, protect, display, and transport products. They are widely used in the production, distribution, and sales of goods and are an indispensable part of the modern commodity economy. The automatic pre-folding forming device for packaging boxes is an automated equipment specifically used in the packaging box production process to automatically process pre-folding lines on sheet materials (such as cardboard and cardboard).

[0003] A search revealed Chinese Patent Publication No. CN115923106A, which discloses a plastic packaging box forming device, including a base 1 and a base 2. The upper end of the base 2 is provided with a lifting and limiting mechanism, and an automatic forming mechanism is installed on the base 1. The lifting and limiting mechanism includes a positioning part and a translation part. The translation part moves the packaging box body from the conveying mechanism to the upper surface of the base 2. The positioning post is located in different quadrants of the rectangular coordinates of the plane where the packaging box body is located. The automatic forming mechanism includes a primary bending part, a secondary bending part, a tertiary bending part, and a hot pressing part. The primary bending part, the secondary bending part, and the tertiary bending part are each equipped with a hot pressing plate and a guide plate. The beneficial effects of this invention are that the positioning part and the translation part can automatically position the workpiece on the production line, making the subsequent folding line position more accurate and improving the production quality of the workpiece; through the sequential operation of the first bending part, the second bending part and the third bending part, the workpiece can be bent quickly, which greatly improves the forming efficiency of the workpiece. However, the folding mechanism in the prior art has an adjustable angle and poor adaptability, and cannot accurately pre-fold for the specific angle of different box types. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic pre-folding forming device for packaging boxes, which aims to improve the existing folding mechanisms, which have fixed angles, poor adaptability, and are unable to perform precise pre-folding for specific angles of different box types.

[0005] An automatic pre-folding forming device for packaging boxes includes a conveyor belt, a working chamber fixedly connected to the top of the conveyor belt, an angle adjustment mechanism fixedly connected to the top of the working chamber for adjusting the angle, and a fixing mechanism fixedly connected to the top of the conveyor belt for fixing the packaging box. The angle adjustment mechanism includes a long short plate fixedly connected to the top of the inner wall of the working chamber, a folding knife fixedly connected to the bottom of the long short plate, and a drive assembly fixedly connected to the top of the inner wall of the working chamber.

[0006] Through the above technical solution: after the device is started, the packaging box to be processed is placed on the conveyor belt and transported to the working chamber by the conveyor belt. When the packaging box reaches the designated position, the fixing mechanism starts to work, and the packaging box is firmly fixed to prevent it from shifting during the pre-folding process. Subsequently, the angle adjustment mechanism is activated, and its core drive component operates to drive the long short plate to adjust the angle. The folding knife fixedly connected to the long short plate will apply pressure to the preset position of the packaging box at the corresponding angle as the angle of the long short plate changes, thereby pressing out the required pre-folding line on the packaging box.

[0007] As a further description of the above technical solution:

[0008] The drive assembly includes a drive cylinder, which is fixedly connected to the top of the inner wall of the working chamber. A T-shaped plate is fixedly connected to the bottom of the drive cylinder. A motor is fixedly connected to the bottom of the T-shaped plate. A worm gear is fixedly connected to the output end of the motor. Multiple vertical plates are fixedly connected at equal intervals to the bottom right side of the T-shaped plate. A fixed short column is rotatably connected to the adjacent side of the outer wall of the vertical plate. A semi-circular worm wheel is fixedly connected to the middle of the outer wall of the fixed short column. The worm gear meshes with the semi-circular worm wheel. A fixed plate is fixedly connected to the top of the conveyor belt. A folding groove is opened in the middle of the inner wall of the fixed plate. The bottom of the semi-circular worm wheel is fixedly connected to the top of the long short plate.

[0009] The above technical solution works as follows: When the angle of the folding knife needs to be adjusted, the drive cylinder is activated, and its bottom end extends or shortens, causing the T-shaped plate and the bottom connected components to move up and down as a whole to adjust the distance between it and the packaging box. Subsequently, the motor is activated, and its output end drives the worm gear to rotate. Since the worm gear is meshed with the semi-circular worm wheel, the rotation of the worm gear will drive the semi-circular worm wheel to rotate around the fixed short column. Because the bottom of the semi-circular worm wheel is fixedly connected to the top of the long short plate, the rotation of the semi-circular worm wheel will drive the long short plate to rotate synchronously, thereby changing the angle of the folding knife at the bottom of the long short plate.

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

[0011] The fixing mechanism includes a placement plate, which is fixedly connected to the top of the conveyor belt. The top left and right sides of the inner wall of the placement plate are provided with elongated grooves. The interior of each elongated groove is slidably connected with a connecting short plate. The top of each connecting short plate is fixedly connected with an elongated plate. The outer wall of the elongated plate is fixedly connected with a flexible protective pad on each adjacent side. The front side of the outer wall of the placement plate is fixedly connected with a connecting component.

[0012] Through the above technical solution: the packaging box to be processed is placed on the placement plate. After the placement plate is transported to the designated position in the working chamber by the conveyor belt, the connecting component is activated and generates driving force. Under the action of the connecting component, the long plates on the left and right sides drive the connecting short plates to slide inward synchronously in the long slide groove, so that the flexible protective pads on the adjacent side of the long plate gradually approach and clamp the two sides of the packaging box, thereby achieving a stable fixation of the packaging box. At the same time, the flexible protective pads can avoid damage to the surface of the packaging box during the clamping process.

[0013] As a further description of the above technical solution:

[0014] The connecting assembly includes a motor, which is fixedly connected to the front side of the outer wall of the placement plate. A fixed long rod is fixedly connected to the output end of the motor. Multiple bevel gears are fixedly connected at equal intervals to the outer wall of the fixed long rod. Bevel gears are meshed with the rear side of the outer wall of each bevel gear. Horizontal plates are fixedly connected to the front and rear sides of the top of the placement plate. Multiple threaded columns are rotatably connected at equal intervals to adjacent sides of the outer wall of the horizontal plates. The outer wall of the threaded columns is threadedly connected to the inside of the elongated plate. A protective shell is installed on the front side of the outer wall of the placement plate.

[0015] Through the above technical solution: when the packaging box is to be fixed, the motor starts, and its output end drives the fixed long rod to rotate. The multiple bevel gears on the outer wall of the fixed long rod rotate together. Since bevel gear one is meshed with bevel gear two, the rotation of bevel gear one drives bevel gear two to rotate, which in turn drives the threaded column connected to it to rotate synchronously under the support of the horizontal plate. The spiral directions of the threaded columns on the left and right sides are opposite, and they are all connected to the internal threads of the long plate. Therefore, when the threaded column rotates, it will drive the long plates on the left and right sides to move synchronously inward under the guidance of the connecting short plate and the long slide, so as to achieve the clamping and fixing of the packaging box.

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

[0017] Multiple cooling fans are fixedly connected at equal intervals to the rear side of the outer wall of the working chamber, and a driving battery is fixedly connected to the middle of the outer rear end of the working chamber.

[0018] The above technical solution involves a cooling fan that starts powered by a drive battery. The fan blades rotate to accelerate airflow inside and outside the working chamber, dissipating the heat generated inside in a timely manner and preventing excessive temperature from affecting the normal operation and lifespan of the components.

[0019] As a further description of the above technical solution:

[0020] A rotating door is rotatably connected to the front of the outer wall of the working chamber, and a handle is fixedly connected to the front of the outer wall of the rotating door.

[0021] The above technical solution enables staff to easily open, close, and rotate the door.

[0022] As a further description of the above technical solution:

[0023] A storage box is fixedly connected to the middle of the bottom wall of the conveyor belt, and a partition is fixedly connected to the middle of the inner wall of the storage box.

[0024] Through the above technical solution, the partition can isolate the space inside the storage box for storage and use.

[0025] As a further description of the above technical solution:

[0026] A support plate is fixedly connected to the left side of the outer wall of the protective shell, and the bottom of the support plate is fixedly connected to the bottom of the motor.

[0027] Through the above technical solution, the support plate can play the role of supporting the motor.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the sheet material is fed into the working chamber by a conveyor belt. The fixing mechanism drives the threaded column by the motor to make the long plates move towards each other. The flexible protective pad clamps the sheet material. The drive cylinder of the angle adjustment mechanism pushes the T-shaped plate down. The motor drives the worm gear to mesh with the semi-circular worm wheel, so that the folding knife rotates to the target angle. Then the cylinder continues to press down, and the folding knife and the folding groove cooperate to complete the pre-folding line pressing.

[0030] 2. In this utility model, the motor drives the fixed long rod to rotate, and through the meshing transmission of bevel gear one and bevel gear two, it drives the threaded column to rotate and support. Since the threads of the left and right threaded columns are opposite, their rotation causes the long plates on both sides to be limited along the long sliding groove, making them move towards or away from each other. When rotating forward, the plate is clamped to buffer and prevent slippage, and when rotating in reverse, the plate is released. Attached Figure Description

[0031] Figure 1 This is a front view of an automatic pre-folding forming device for packaging boxes proposed in this utility model;

[0032] Figure 2 This is a perspective view of an automatic pre-folding forming device for packaging boxes proposed in this utility model;

[0033] Figure 3 This is a rear view of an automatic pre-folding forming device for packaging boxes proposed in this utility model;

[0034] Figure 4 This is a partial structural schematic diagram of an automatic pre-folding forming device for packaging boxes proposed in this utility model;

[0035] Figure 5This is a partial structural diagram of an automatic pre-folding forming device for packaging boxes proposed in this utility model;

[0036] Figure 6 This is a schematic diagram of the fixing mechanism of an automatic pre-folding forming device for packaging boxes proposed in this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Conveyor belt; 2. Angle adjustment mechanism; 201. Long short plate; 202. Folding knife; 203. Drive assembly; 2031. Drive cylinder; 2032. T-shaped plate; 2033. Motor; 2034. Worm gear; 2035. Fixed short column; 2036. Vertical plate; 2037. Semi-circular worm gear; 2038. Fixing plate; 2039. Folding groove; 3. Fixing mechanism; 301. Placement plate; 302. Flexible protective pad; 303. Long plate; 304. Long slide; 305. Connecting short plate; 306. Connecting assembly; 3061. Motor; 3062. Bevel gear one; 3063. Fixed long rod; 3064. Bevel gear two; 3065. Protective shell; 3066. Threaded column; 3067. Horizontal plate; 4. Support plate; 5. Cooling fan; 6. Drive battery; 7. Working compartment; 8. Storage box; 9. Handle; 10. Partition; 11. Rotating door. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of an automatic pre-folding forming device for packaging boxes, comprising a conveyor belt 1, a working chamber 7 fixedly connected to the top of the conveyor belt 1, an angle adjustment mechanism 2 fixedly connected to the top of the working chamber 7 for adjusting the angle, and a fixing mechanism 3 fixedly connected to the top of the conveyor belt 1 for fixing the packaging box; the angle adjustment mechanism 2 includes a long short plate 201 fixedly connected to the top of the inner wall of the working chamber 7, a folding knife 202 fixedly connected to the bottom of the long short plate 201, a drive assembly 203 fixedly connected to the top of the inner wall of the working chamber 7, the drive assembly 203 including a drive cylinder 2031 fixedly connected to the top of the inner wall of the working chamber 7, a T-shaped plate 2032 fixedly connected to the bottom of the drive cylinder 2031, a motor 2033 fixedly connected to the bottom of the T-shaped plate 2032, and an output end of the motor 2033 fixedly connected to... The conveyor belt 1 has a worm gear 2034. Multiple vertical plates 2036 are fixedly connected at equal intervals to the bottom right side of the T-shaped plate 2032. A fixed short column 2035 is rotatably connected to the outer wall of the vertical plate 2036. A semi-circular worm wheel 2037 is fixedly connected to the middle of the outer wall of the fixed short column 2035. The worm gear 2034 and the semi-circular worm wheel 2037 are meshed. A fixed plate 2038 is fixedly connected to the top of the conveyor belt 1. A folding groove 2039 is opened in the middle of the inner wall of the fixed plate 2038. The bottom of the semi-circular worm wheel 2037 is fixedly connected to the top of the long short plate 201. Multiple cooling fans 5 are fixedly connected at equal intervals to the rear side of the outer wall of the working chamber 7. A drive battery 6 is fixedly connected to the middle of the outer rear end of the working chamber 7. The cooling fans 5 are started by the power of the drive battery 6. The fan blades rotate to accelerate the air circulation inside and outside the working chamber 7 and dissipate the heat generated inside in time, so as to avoid the normal operation and service life of each component due to excessive temperature.

[0041] Specifically, firstly, the packaging box material to be processed is conveyed to the processing area in the work chamber 7 via conveyor belt 1. At this time, the fixing mechanism 3 is activated to fix the material, ensuring the stability of the material position during processing. After the material is fixed in place, the angle adjustment mechanism 2 starts to work to achieve pre-folding at a specific angle for different box shapes. The drive cylinder 2031 in the drive assembly 203 is activated, pushing the T-shaped plate 2032 and the bottom connected components to move down as a whole, so that the folding knife 202 approaches the surface of the material. The motor 2033 starts, driving the worm gear 2034 to rotate. Since the worm gear 2034 is meshed with the semi-circular worm wheel 2037, the rotation of the worm gear 2034 will drive the semi-circular worm wheel 2037 to rotate around the fixed short column 2035. When the semi-circular worm wheel 2037 rotates, it will drive the long short plate 201 fixedly connected to its bottom to rotate synchronously. The folding blade 202 at the bottom of the long short plate 201 is adjusted to match the pre-folding angle required for the current box shape. After the angle adjustment is completed, the drive cylinder 2031 further pushes the folding blade 202 down to match the folding groove 2039 on the inner wall of the fixed plate 2038, pressing a pre-folding line that meets the angle requirements at the corresponding position of the plate. After the pre-folding is completed, the drive cylinder 2031 drives all components to reset, and the conveyor belt 1 transports the processed plate to the next process. Multiple cooling fans 5 are fixedly connected at equal intervals on the rear side of the outer wall of the working chamber 7. A drive battery 6 is fixedly connected to the middle of the outer rear end of the working chamber 7. The cooling fans 5 are started by the power supply of the drive battery 6. The fan blades rotate to accelerate the air circulation inside and outside the working chamber 7, and the heat generated inside is discharged in time to avoid the normal operation and service life of the components due to excessive temperature.

[0042] Reference Figure 2 , Figure 5 and Figure 6The fixing mechanism 3 includes a placement plate 301, which is fixedly connected to the top of the conveyor belt 1. The inner wall of the placement plate 301 has elongated grooves 304 on both the left and right sides. Connecting short plates 305 are slidably connected inside each elongated groove 304. An elongated plate 303 is fixedly connected to the top of each connecting short plate 305. Flexible protective pads 302 are fixedly connected to adjacent sides of the outer wall of the elongated plate 303. A connecting assembly 306 is fixedly connected to the front side of the outer wall of the placement plate 301. The connecting assembly 306 includes a motor 3061, which is fixedly connected to the front side of the outer wall of the placement plate 301. A fixing rod 3063 is fixedly connected to the output end of the motor 3061. Multiple bevel gears 3062 are fixedly connected at equal intervals to the outer wall of the fixed length rod 3063. Bevel gears 3064 are meshed with the rear side of the outer wall of each bevel gear 3062. A horizontal plate 3067 is fixedly connected to the front and rear sides of the top of the placement plate 301. Multiple threaded columns 3066 are rotatably connected at equal intervals to the adjacent side of the outer wall of the horizontal plate 3067. The outer wall of the threaded column 3066 is threadedly connected to the inside of the elongated plate 303. A protective shell 3065 is installed on the front side of the outer wall of the placement plate 301. A support plate 4 is fixedly connected to the left side of the outer wall of the protective shell 3065. The bottom of the support plate 4 is fixedly connected to the bottom of the motor 3061. The support plate 4 can support the motor 3061.

[0043] Specifically, after the motor 3061 starts, it drives the fixed long rod 3063 to rotate. Multiple bevel gears 3062 fixed on the rod rotate synchronously. These bevel gears 3062 mesh with multiple bevel gears 3064, driving the threaded column 3066 to rotate. The threaded column 3066 is supported at both ends by a horizontal plate 3067 to ensure stable rotation. The threads of the threaded columns 3066 on the left and right sides are in opposite directions. Therefore, when the threaded column 3066 rotates, its thread engagement with the elongated plate 303 causes the elongated plates 303 to move in opposite directions. When the motor 3061 rotates forward, the elongated plates 303 on both sides move towards the center along the elongated slide groove 304, passing through the flexible protective pad 30. 2. When the motor 3061 reverses, the elongated plate 303 moves in the opposite direction to release the plate. The connecting short plate 305 at the bottom of the elongated plate 303 is embedded in the elongated slide groove 304, which restricts the elongated plate 303 to slide only in a straight line along the slide groove, ensuring the stability of the clamping process. The flexible protective pad 302 provides cushioning to avoid damage to the surface of the plate by hard contact, while increasing friction to ensure the clamping effect. A protective shell 3065 is installed on the front side of the outer wall of the placement plate 301. A support plate 4 is fixedly connected to the left side of the outer wall of the protective shell 3065. The bottom of the support plate 4 is fixedly connected to the bottom of the motor 3061. The support plate 4 can support the motor 3061.

[0044] Reference Figure 1 , Figure 2 and Figure 3A rotating door 11 is rotatably connected to the front of the outer wall of the working chamber 7. A handle 9 is fixedly connected to the front of the outer wall of the rotating door 11. The handle 9 makes it easy for the staff to open and close the rotating door 11. A storage box 8 is fixedly connected to the middle of the bottom wall of the conveyor belt 1. A partition 10 is fixedly connected to the middle of the inner wall of the storage box 8. The partition 10 can isolate the space inside the storage box 8 for storage.

[0045] Specifically, a rotating door 11 is rotatably connected to the front of the outer wall of the working chamber 7, and a handle 9 is fixedly connected to the front of the outer wall of the rotating door 11. The handle 9 makes it easy for the staff to open and close the rotating door 11. A storage box 8 is fixedly connected to the middle of the bottom wall of the conveyor belt 1, and a partition 10 is fixedly connected to the middle of the inner wall of the storage box 8. The partition 10 can isolate the space inside the storage box 8 for storage.

[0046] Working principle: First, the packaging box material to be processed is conveyed to the processing area in the work chamber 7 via conveyor belt 1. At this time, the fixing mechanism 3 is activated to fix the material and ensure the stability of the material position during processing. After the material is fixed in place, the angle adjustment mechanism 2 starts to work to achieve pre-folding at a specific angle for different box shapes. The drive cylinder 2031 in the drive assembly 203 is activated, pushing the T-shaped plate 2032 and the bottom connected parts to move down as a whole, so that the folding knife 202 approaches the surface of the material. The motor 2033 starts, driving the worm gear 2034 to rotate. Since the worm gear 2034 is meshed with the semi-circular worm wheel 2037, the rotation of the worm gear 2034... The semi-circular worm gear 2037 is driven to rotate around the fixed short column 2035. When the semi-circular worm gear 2037 rotates, it will drive the long short plate 201 fixedly connected to its bottom to rotate synchronously. This will cause the folding knife 202 at the bottom of the long short plate 201 to adjust its angle to match the pre-folding angle required by the current box shape. After the angle adjustment is completed, the drive cylinder 2031 will further push the folding knife 202 down to cooperate with the folding groove 2039 on the inner wall of the fixed plate 2038, and press a pre-folding line that meets the angle requirements at the corresponding position of the board. Finally, after the pre-folding is completed, the drive cylinder 2031 will drive all components to reset, and the conveyor belt 1 will transport the processed board to the next process.

[0047] After the motor 3061 starts, it drives the fixed long rod 3063 to rotate. Multiple bevel gears 3062 fixed on the rod rotate synchronously. These bevel gears 3062 mesh with multiple bevel gears 3064, driving the threaded column 3066 to rotate. The threaded column 3066 is supported at both ends by a horizontal plate 3067 to ensure stable rotation. The threads of the threaded columns 3066 on the left and right sides are in opposite directions. Therefore, when the threaded column 3066 rotates, its threaded engagement with the elongated plate 303 causes the elongated plates 303 to move in opposite directions. When the motor 3061 rotates forward, the elongated plates 303 on both sides move towards the center along the elongated slide 304 and clamp the plate through the flexible protective pad 302. When the motor 3061 rotates in reverse, the elongated plates 303 move in the opposite direction and release the plate. The connecting short plate 305 at the bottom of the elongated plate 303 is embedded in the elongated slide 304, which restricts the elongated plate 303 to slide only in a straight line along the slide, ensuring the stability of the clamping process. The flexible protective pad 302 provides cushioning to avoid hard contact that could damage the surface of the plate, while also increasing friction to ensure the clamping effect.

Claims

1. An automatic pre-folding forming device for packaging boxes, comprising a conveyor belt (1), characterized in that: The top of the conveyor belt (1) is fixedly connected to a working chamber (7), the top of the working chamber (7) is fixedly connected to an angle adjustment mechanism (2), the angle adjustment mechanism (2) is used to adjust the angle, and the top of the conveyor belt (1) is fixedly connected to a fixing mechanism (3), the fixing mechanism (3) is used to fix the packaging box. The angle adjustment mechanism (2) includes a long short plate (201), which is fixedly connected to the top of the inner wall of the working chamber (7). A folding knife (202) is fixedly connected to the bottom of the long short plate (201), and a drive assembly (203) is fixedly connected to the top of the inner wall of the working chamber (7).

2. The automatic pre-folding forming device for packaging boxes according to claim 1, characterized in that: The drive assembly (203) includes a drive cylinder (2031), which is fixedly connected to the top of the inner wall of the working chamber (7). A T-shaped plate (2032) is fixedly connected to the bottom end of the drive cylinder (2031). A motor (2033) is fixedly connected to the bottom of the T-shaped plate (2032). A worm gear (2034) is fixedly connected to the output end of the motor (2033). Multiple vertical plates (2036) are fixedly connected at equal intervals to the bottom right side of the T-shaped plate (2032). A fixed short column (2035) is rotatably connected to the outer wall of the conveyor belt (1) on one side. A semi-circular worm wheel (2037) is fixedly connected to the middle of the outer wall of the fixed short column (2035). The worm (2034) is meshed with the semi-circular worm wheel (2037). A fixed plate (2038) is fixedly connected to the top of the conveyor belt (1). A folding groove (2039) is opened in the middle of the inner wall of the fixed plate (2038). The bottom of the semi-circular worm wheel (2037) is fixedly connected to the top of the long short plate (201).

3. The automatic pre-folding forming device for packaging boxes according to claim 1, characterized in that: The fixing mechanism (3) includes a placement plate (301), which is fixedly connected to the top of the conveyor belt (1). The top left and right sides of the inner wall of the placement plate (301) are provided with elongated grooves (304). The interior of the elongated grooves (304) is slidably connected with connecting short plates (305). The top of the connecting short plates (305) is fixedly connected with an elongated plate (303). The outer wall of the elongated plate (303) is fixedly connected with a flexible protective pad (302) on an adjacent side. The front side of the outer wall of the placement plate (301) is fixedly connected with a connecting component (306).

4. The automatic pre-folding forming device for packaging boxes according to claim 3, characterized in that: The connecting assembly (306) includes a motor (3061), which is fixedly connected to the front side of the outer wall of the placement plate (301). The output end of the motor (3061) is fixedly connected to a fixed long rod (3063). Multiple bevel gears (3062) are fixedly connected at equal intervals to the outer wall of the fixed long rod (3063). Bevel gears (3064) are meshed with the rear side of the outer wall of each bevel gear (3062). A horizontal plate (3067) is fixedly connected to the front and rear sides of the top of the placement plate (301). Multiple threaded columns (3066) are rotatably connected at equal intervals to adjacent sides of the outer wall of the horizontal plate (3067). The outer wall of the threaded column (3066) is threadedly connected to the inside of the elongated plate (303). A protective shell (3065) is installed on the front side of the outer wall of the placement plate (301).

5. The automatic pre-folding forming device for packaging boxes according to claim 1, characterized in that: Multiple cooling fans (5) are fixedly connected at equal intervals on the rear side of the outer wall of the working chamber (7), and a driving battery (6) is fixedly connected to the middle of the outer rear end of the working chamber (7).

6. The automatic pre-folding forming device for packaging boxes according to claim 1, characterized in that: The front side of the outer wall of the working chamber (7) is rotatably connected to a rotating door (11), and the front side of the outer wall of the rotating door (11) is fixedly connected to a handle (9).

7. The automatic pre-folding forming device for packaging boxes according to claim 1, characterized in that: A storage box (8) is fixedly connected to the middle of the bottom wall of the conveyor belt (1), and a partition (10) is fixedly connected to the middle of the inner wall of the storage box (8).

8. The automatic pre-folding forming device for packaging boxes according to claim 4, characterized in that: A support plate (4) is fixedly connected to the left side of the outer wall of the protective shell (3065), and the bottom of the support plate (4) is fixedly connected to the bottom of the motor (3061).

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