A three-dimensional wrapping machine

Abstract

The present invention discloses a three-dimensional wrapping machine, which comprises a machine frame, a film feeding mechanism, a feeding mechanism, a wrapping mechanism and a side sealing mechanism. The feeding mechanism comprises a feeding component, and a push plate which moves up and down is arranged at the tail end of the feeding component. The wrapping mechanism is arranged above the feeding component and comprises a main body folding device and a side folding device. The side sealing mechanism comprises a turning seat which swings up and down, and a left heat sealing component and a right heat sealing component which are installed on the turning seat. The side end of the turning seat is hinged to the machine frame. The film feeding mechanism comprises a traction device, a film cutting device and a positioning film feeding device. The traction device and the film cutting device are arranged below the turning seat, and the positioning film feeding device is arranged between the main body folding device and the feeding component. The structure of the present invention is compact, the design is reasonable, the whole machine has a small volume, which is convenient for equipment placement, and the wrapping is firm and not loose, and the wrapping quality is good.

Description

Technical Field

[0001] The present invention relates to an improved invention of a three-dimensional wrapping machine, which is used for wrapping boxed materials such as medicine boxes and cigarette boxes. Background Art

[0002] There are several problems with the existing three-dimensional wrapping machines: 1. The wrapping quality is poor, the packaging film and the materials are too loose, which not only affects the appearance, but also the packaging film is easily damaged; 2. The volume is large and the cost is high; 3. The materials stay at the heat-sealing station, and the materials are heated for a long time, which will affect the product quality and even cause the product to deteriorate, especially for products such as medicines and foods. Summary of the Invention

[0003] In view of the technical problems in the background art, the technical problem to be solved by the present invention is to provide a three-dimensional wrapping machine with a reasonable structural design and good wrapping quality.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: This three-dimensional wrapping machine includes a frame, a film feeding mechanism, a material feeding mechanism, a wrapping mechanism and a side sealing mechanism. The side sealing mechanism is arranged in front of the wrapping mechanism. It is characterized in that the material feeding mechanism includes a material feeding component, and a push plate that moves up and down is arranged at the tail end of the material feeding component. The wrapping mechanism is arranged above the material feeding component. The wrapping mechanism includes a main body folding device and a side folding device. The side sealing mechanism includes a turning seat that swings up and down and a left heat-sealing component and a right heat-sealing component installed on the turning seat. The side end of the turning seat is hinged to the frame. There is a side sealing channel between the left heat-sealing component and the right heat-sealing component. The side sealing channel is connected to the workbench of the side folding device. The film feeding mechanism includes a traction device, a film cutting device and a positioning film feeding device. The traction device and the film cutting device are arranged below the turning seat. The positioning film feeding device is arranged between the main body folding device and the material feeding component.

[0005] The turning seat includes a left support plate, a right support plate and a cross beam installed on the left support plate and the right support plate. A sliding seat is slidably arranged on the cross beam. The right heat-sealing component is installed on the sliding seat. The turning seat further includes a turning plate, the turning plate is hinged to the frame, and a longitudinal guide rail is arranged on the turning plate. The left support plate is slidably arranged on the longitudinal guide rail.

[0006] The positioning film feeding device includes a suction belt. The suction belt includes a left suction belt and a right suction belt. Film feeding auxiliary components are arranged at both ends of the left suction belt and the right suction belt. The film feeding auxiliary components include a set of pressure wheels that cooperate with the suction belt.

[0007] The feeding mechanism further includes a feeding component, and the feeding component includes a conveyor belt which is horizontally arranged; the feeding component includes a left conveyor belt and a right conveyor belt which are vertically arranged, and there is a clamping channel between the two, the rear end of the clamping channel is connected to the conveyor belt, and a positioning baffle is arranged at the front end of the clamping channel; a stop block which enters and exits the clamping channel from below the clamping channel is arranged on the machine frame, and the stop block is connected to a lifting component for driving it to move up and down or the stop block is connected to a swinging component for driving it to swing up and down.

[0008] The feeding component further includes a material supporting part which is arranged below the left conveyor belt and the right conveyor belt; a position sensor is installed on the positioning baffle; a material storage sensor is arranged behind the position sensor; a linkage sensor is arranged at the discharging end of the conveyor belt, and the position sensor, the material storage sensor, the linkage sensor, the feeding component and the feeding component are all connected to an electrical controller.

[0009] Two side baffles are arranged on the conveyor belt, namely a left side baffle and a right side baffle, the side baffles are longitudinally arranged and move relatively horizontally, and the left conveyor belt and the right conveyor belt move relatively horizontally; a limiting baffle is arranged behind the positioning baffle, and a conveying channel is formed between the positioning baffle and the limiting baffle; the limiting baffle is installed on a support rod which moves left and right, and the support rod is installed on an adjusting seat which moves up and down.

[0010] The main body folding device includes a positioning component, a front and rear folding component and a bottom surface folding component, the positioning component is arranged above the front and rear folding component, the positioning component includes an upper baffle and a rear push plate which moves back and forth, the upper baffle extends forward above the upper and lower folding component, the front and rear folding component includes a front baffle and a rear baffle, and the bottom surface folding component includes a support plate which moves back and forth; the side folding device includes a side inserting component and an upper and lower folding component, the upper and lower folding component is arranged in front of the front and rear folding component, the side inserting component includes a front inserting plate and a rear inserting plate which moves back and forth, there are two left and right pieces for both the front inserting plate and the rear inserting plate, the rear inserting plate is arranged on both sides of the rear push plate, and the upper and lower folding component includes an upper guiding groove and a lower guiding groove which are arranged above the workbench.

[0011] A bottom sealing device is arranged below the front inserting plate, and the bottom sealing device includes a heat sealing die which moves up and down; the rear inserting plate is hinged to a mounting seat, and a force for making it tilt towards the rear push plate is arranged at the rear end of the rear inserting plate.

[0012] The distance between the front baffle and the rear baffle matches the length of the wrapped material, and the rear baffle can move back and forth relative to the front baffle; the positioning member further includes a rear positioning member, which is vertically installed on the rear baffle, and a wire groove for the rear positioning member to pass through is provided on the pallet; the rear push plate is installed on the moving seat; the upper guide groove and the lower guide groove are mainly composed of an upper guide plate, an intermediate plate and a lower guide plate. The upper guide plate and the intermediate plate form the upper guide groove, and the lower guide plate and the intermediate plate form the lower guide groove.

[0013] The side sealing channel is divided into a heat sealing part and a shaping part. Both the left heat sealing member and the right heat sealing member include a driving wheel, a transmission belt arranged on the driving wheel, and a heating component and a buffer shaping component arranged in the transmission belt. The transmission belt is arranged vertically, and the heating component is arranged behind the buffer shaping component.

[0014] The bottom of the side sealing channel is provided with a bottom conveying component; the bottom conveying component includes a horizontally arranged bottom left conveyor belt and a bottom right conveyor belt, and the bottom left conveyor belt and the bottom right conveyor belt are synchronized with the transmission belt; the heating component includes a heating plate, and the heating plate is attached to the transmission belt; the buffer shaping component includes an elastic shaping piece, and the spacing of the shaping part of the side sealing channel is smaller than that of the heat sealing part; the heating component further includes a spring piece, and the heating plate is connected to the spring piece.

[0015] The transmissions of the film feeding mechanism and the wrapping mechanism are both driven by a servo motor, and the servo motor is electrically connected to the electrical controller

[0016] The structure of the present invention is compact, reasonably designed, the whole machine has a small volume, which is convenient for equipment placement, and the wrapping is tight and not loose, the wrapping quality is good, it can be adjusted according to the specifications of the materials, and it is suitable for packaging materials of different specifications without affecting the product quality in the packaging box, and it is suitable for the packaging of products such as cigarettes, medicines, and foods. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present invention.

[0018] Figure 2 is a schematic diagram of the film feeding mechanism of the present invention.

[0019] Figure 3 is a schematic diagram of the film cutting device of the present invention Figure 1 .

[0020] Figure 4 is a schematic diagram of the film cutting device of the present invention Figure 2 .

[0021] Figure 5 is a schematic diagram of the positioning film feeding device of the present invention.

[0022] Figure 6 For the present invention Figure 5 Enlarged view at position A.

[0023] Figure 7 Schematic diagram of the feeding mechanism of the present invention.

[0024] Figure 8 Partial schematic diagram of the feeding mechanism of the present invention Figure 1 .

[0025] Figure 9 Partial schematic diagram of the feeding mechanism of the present invention Figure 2 .

[0026] Figure 10 Schematic diagram of the wrapping mechanism of the present invention.

[0027] Figure 11 Partial schematic diagram of the wrapping mechanism of the present invention.

[0028] Figure 12 Schematic diagram of the side insertion component of the present invention.

[0029] Figure 13 Top view of the side insertion component of the present invention before side insertion.

[0030] Figure 14 Top view of the side insertion component of the present invention during side insertion.

[0031] Figure 15 Schematic diagram of the side sealing mechanism of the present invention.

[0032] Figure 16 Top view of the side sealing mechanism of the present invention.

[0033] Figure 17 Schematic diagram of the flipping seat of the present invention.

[0034] Figure 18 Horizontal state of the material.

[0035] Figure 19 Side vertical state of the material. Specific embodiments

[0036] The embodiments of the present invention and the relevant details and working principles of the embodiments will be described below in conjunction with the accompanying drawings. This three-dimensional wrapping machine includes a machine frame 1, a film feeding mechanism 2, a feeding mechanism 3, a wrapping mechanism 4 and a side sealing mechanism 5. The side sealing mechanism 5 is arranged in front of the wrapping mechanism 4. The feeding mechanism includes a feeding component, and a push plate 47 that moves up and down is arranged at the tail end of the feeding component. The lifting of the push plate can be achieved by a cylinder or a lead screw mechanism, etc.; the wrapping mechanism 4 is arranged above the feeding component. The wrapping mechanism 4 includes a main body folding device and a side folding device. The side sealing mechanism 5 includes a turning seat 102 that swings up and down and a left heat sealing component 100 and a right heat sealing component 101 installed on the turning seat. The side end of the turning seat is hinged to the machine frame 1. There is a side sealing channel 110 between the left heat sealing component and the right heat sealing component. The side sealing channel is connected to the workbench 91 of the side folding device. The film feeding mechanism 2 includes a traction device, a film cutting device and a positioning film feeding device. The traction device and the film cutting device are arranged below the turning seat 102, and the positioning film feeding device is arranged between the main body folding device and the feeding component. The material of the present invention is conveyed from back to front to the push plate, and the packaging film is conveyed from front to back to the positioning film feeding device, that is, the packaging film station. The packaging film station is arranged between the feeding component and the main body folding device. The packaging film is above the material. The push plate 47 pushes the material up. The material and the packaging film together enter the wrapping station for main body folding and side folding, and then enter the side sealing station. The left and right heat sealing components heat seal the film with the wrapped material, thus completing the wrapping operation; the structure of the present invention is compact and reasonably designed, making the whole machine small in size, convenient for the transportation and placement of the equipment. Moreover, when the film feeding mechanism needs to be maintained or the film needs to be replaced, the turning seat 102 turns up, and the traction device and the film cutting device of the film feeding mechanism are exposed, which is convenient for the staff to operate.

[0037] The structures of each mechanism will be specifically described below:

[0038] See the appendix Figure 2-6, the traction device of the film feeding mechanism sends the packaging film to the film cutting station and the packaging film station; the traction device includes a feeding shaft 29 and feeding rollers 16, 17, the material roll is placed on the feeding shaft, and the feeding shaft 29 can adopt an air shaft to fix the material roll. The film cutting device includes a cutting knife 15, and the cutting knife can adopt straight cutting or rotary cutting. Straight cutting means the cutting knife moves up and down, and rotary cutting means the cutting knife is installed on a drum, and the rotation of the drum drives the cutting knife to rotate. In this embodiment, the film cutting device 11 includes a rotary cutting knife 15 and a fixed cutting knife 21 that cooperates with the rotary cutting knife. The fixed cutting knife is connected to the feeding end of the suction belt 22 of the positioning film feeding device. The fixed cutting knife is installed on a fixed knife seat, and the fixed knife seat is installed on the machine frame. The rotary cutting knife 15 is installed on the knife seat 14, and the knife seat is connected to a power source that drives its rotation. The power source is a motor, and the motor drives the knife seat 14 to rotate. The rotary cutting knife 15 and the fixed cutting knife 21 cooperate to cut the roll material into unit packaging films; the rotary cutting knife is provided with a position sensor, and the power source and the position sensor are connected to an electrical controller. That is, after the rotary cutting knife completes cutting, the motor drives the rotary cutting knife to rotate to a set position. That is, when the position sensor detects the rotary cutting knife, the electrical controller sends an instruction to the motor, and the motor stops rotating until the next cutting, and the motor starts again. The rotary cutting knife waits for the cutting operation at the waiting station, thereby improving the cutting accuracy and efficiency.

[0039] The positioning film feeding device 10 includes a suction belt 22. The suction belt 22 includes a left suction belt and a right suction belt, and film feeding auxiliary components are provided at both ends of the left suction belt and the right suction belt; the feeding roller sends the front end of the roll material to the feeding ends of the left and right suction belts. At this time, the film feeding auxiliary components assist the front end of the roll material to smoothly enter the left and right suction belts, preventing the packaging film from slipping during the transportation process without vacuum. When the front end of the roll material enters the left and right suction belts, the film cutting device 11 cuts the roll material into unit packaging films, and the left and right suction belts transport the cut unit packaging films forward to the packaging film station. The front and rear ends of the packaging film are positioned by the film feeding auxiliary components to ensure that the packaging film stably enters the wrapping. After the packaging film enters the next process, the roll material continues to be transported forward, and the front end of the roll material enters the suction belt, and so on.

[0040] The film feeding auxiliary components include a pressure wheel group 23 that cooperates with the suction belt. Several groups of pressure wheel groups are provided, and the pressure wheel groups are installed on a bracket 24. The pressure wheel group includes a pressure wheel 28; an adjusting component for adjusting the pressing force of the pressure wheel is provided on the bracket 24 to make the pressing effect of the pressure wheel 28 on the suction belt 22 reach the best; the adjusting component can adopt a lead screw mechanism, a lever mechanism, etc. for driving the pressure wheel to lift. In order to reduce costs, in this embodiment, see the appendix Figure 6The adjusting component includes a swing arm 27, an adjusting bolt 25 and a torsion spring 26. The swing arm 27 is provided with a mounting hole. The adjusting bolt 25 passes through the mounting hole and is threadedly connected to the bracket 24. The pressure wheel 28 is installed on the swing arm 27. One end of the torsion spring 26 is connected to the adjusting bolt, and the other end of the torsion spring is connected to the bracket. The elastic force of the torsion spring presses the pressure wheel 28 toward the suction belt 22. If the pressure is too small, turn the adjusting bolt clockwise to increase the elastic force of the torsion spring acting on the swing arm, and the downward pressure of the pressure wheel becomes larger. On the contrary, when the pressure is too large, turn the adjusting bolt counterclockwise. The pressure wheel group of the present invention is provided with multiple groups, which can be adjusted independently.

[0041] The feeding roller includes an active roller 17 and a passive roller 16. To facilitate film threading, the passive roller 16 can move up and down relative to the active roller. Figure 3 and 4 When the film is passed through, the passive roller 16 moves up, and there is a gap between the passive roller and the active roller. When the film is fed, the passive roller 16 moves down and presses with the active roller 17. The passive roller 16 can be raised and lowered by a cylinder drive. In this embodiment, the passive roller 16 is installed at one end of a swing rod 19, and the other end of the swing rod is hinged to the frame 1. The swing rod 19 is connected to a power member that drives the swing up and down. The power member is a cylinder, or the power member includes a cam 20. The swing rod 19 is placed on the cam, and the cam 20 is connected to a motor that drives it to rotate. In order to save costs, the cam 20 is connected to a rotating shaft 18, and a handle 13 is installed on the rotating shaft 18. The handle is manually driven to rotate the rotating shaft 18, that is, the cam 20 is driven to rotate, so that the swing rod matched with the cam swings up and down at any time, and then drives the passive roller 16 to move up or down.

[0042] See attached Figure 7-9 The feeding mechanism also includes a feeding component, the feeding component includes a conveyor belt 30, the conveyor belt is horizontally arranged, the feeding component includes a left conveyor belt 31 and a right conveyor belt, the left conveyor belt and the right conveyor belt are vertically arranged, and there is a clamping channel 32 between the two, the clamping channel is connected with the conveyor belt 30, and the frame 1 is provided with a block 52 for entering and exiting the clamping channel from the bottom of the clamping channel, the block is connected to the lifting component that drives it to rise and fall or the block is connected to the swing component that drives it to swing up and down, and the material is placed on the conveyor belt 30 in a horizontal state. On the top, the conveyor belt sends the material into the clamping channel 32, and then the left and right conveyor belts convey it forward. If the material needs to be placed sideways, the block 52 enters the clamping channel 32, and the lower end of the material is blocked by the block. The power of the left and right conveyor belts causes the material to rotate forward with the blocking point as the center until it is separated from the block 32. At this time, the material is in a vertical setting and is then continuously conveyed forward by the left and right conveyor belts. If the material is packaged in a horizontal state, the block exits the clamping channel, and after the material enters the clamping channel, it is directly conveyed forward to the push plate by the left and right conveyor belts, thus achieving multiple uses of one machine.

[0043] To make the material conveying more stable and prevent the material from detaching from the pinch conveying channel 32, the feeding component further includes a material supporting member (not shown in the figure). The material supporting member is arranged below the left conveyor belt 31 and the right conveyor belt, and can support the material to prevent it from falling. The material supporting member is a supporting rod or a supporting plate, and the supporting rod has less friction and better effect.

[0044] Positioning baffles 50 are provided at the tails of the left conveyor belt 31 and the right conveyor belt. When the material is sent to the tails by the left and right conveyor belts, the positioning baffles 50 block the material to make it accumulate. The push plate is arranged between the material supporting member and the positioning baffles 50. The push plate is in an inverted "7" shape. See the appendix Figure 9 , the push plate 47 can be divided into an upper push plate 52 and a baffle 53. After the push plate moves upward, the baffle moves upward accordingly to block the material sent by the left and right conveyor belts until the push plate moves downward to reset, and the baffle moves downward to below the pinch conveying channel, and the material continues to be conveyed forward onto the upper push plate 52. A limiting baffle 48 is provided behind the positioning baffle 50. The limiting baffle is higher than the height of the material. A conveying channel 49 is formed between the positioning baffle and the limiting baffle. The positioning baffle, the limiting baffle and the left and right conveyor belts form a four-sided closed conveying space, so that the push plate 47 pushes the material to move upward in the conveying space to improve the stability of the upward movement. Due to different specifications of the materials, it can adapt to the conveying of different materials. The limiting baffle 48 is installed on a support rod 43 that moves back and forth, and the support rod is installed on an adjusting seat 40 that moves up and down. In this way, the height of the limiting baffle 48 and the width of the conveying channel 49 can be adjusted. See the appendix Figure 9 , a longitudinally arranged mounting groove one 42 is formed on the support rod 43, a vertically arranged guide seat 39 is provided on the frame, and a vertically arranged mounting groove two 38 is formed on the guide seat. The adjusting seat 40 is slidably arranged on the support rod and the guide seat, and is installed on the support rod and the guide seat through bolts. That is, a groove one 41 matching the support rod is formed at the left end of the adjusting seat, and a groove two matching the guide seat is formed at the right end of the adjusting seat. The bolt passes through the mounting groove two and is connected with a nut, and the adjusting seat is installed on the guide seat. The bolt passes through the mounting groove one and is connected with a nut, then the support rod is installed on the adjusting seat.

[0045] A position sensor 50 is installed on the positioning baffle. A stock sensor 45 is arranged behind the position sensor. When the stock sensor detects the accumulated materials, it indicates that there is sufficient material accumulated in the pinch conveying channel 32. At this time, the materials in the pinch conveying channel can be sent to the next process. The position sensor 50, the stock sensor 45, the feeding component, the material feeding component and the component for driving the push plate to lift are all connected to the electric controller. The present invention can adjust the quantity of stored materials according to requirements, that is, adjust the position of the stock sensor 45. The stock sensor is slidably installed on the mounting seat 46, and the mounting seat is installed on the frame 1. The stock quantity in the pinch conveying channel is controlled by moving the position of the stock sensor 45. The sliding installation can adopt the mechanism of the linear guide rail and the slide seat in cooperation, or a guiding groove can be opened on the mounting seat, and the stock sensor moves along the guiding groove. When the material reaches the positioning baffle 51, the position sensor 50 senses the material and sends the information to the electric controller. When the material accumulates and the stock sensor 45 detects the accumulated material, it sends the information to the electric controller. When the electric controller receives the information of both, it sends an instruction to the material feeding component, and the push plate 47 moves upward to send the material to the wrapping station. At this time, the baffle 53 blocks the material sent from the rear. Then the push plate 47 moves downward and resets, and the baffle moves to the lower part of the pinch conveying channel. The left and right conveyor belts send the material to the push plate 47, thus realizing automatic control. A linkage sensor 44 is arranged at the discharging end of the conveyor belt 30, and the linkage sensor is also connected to the electric controller. When the linkage sensor 44 detects the accumulated material, it indicates that the pinch conveying channel 32 is already full of materials. The linkage sensor sends the information to the electric controller, and the electric controller increases the running speed of the equipment, including the speed of the push plate and the left and right conveyor belts, until after the materials in the pinch conveying channel are sent out and the linkage sensor does not detect the accumulated material, the equipment resumes running at the set speed.

[0046] The conveyor belt is provided with two side baffles, namely a left baffle 33 and a right baffle 34. The side baffles are longitudinally arranged and move horizontally relative to each other. The left conveyor belt 31 and the right conveyor belt move horizontally relative to each other. The present invention can adjust the conveying width of the conveyor belt and the clamping channel to adapt to materials of different widths. In this embodiment, a cross beam 35 is provided above the conveyor belt. A horizontally arranged installation groove 37 is formed in the cross beam. Horizontally arranged installation holes are formed in the left baffle 33 and the right baffle 34. A locking hole 36 communicating with the installation groove is formed above the installation hole. The cross beam 35 is installed on the frame 1. The left baffle and the right baffle are slidably arranged on the cross beam 35. After determining the positions of the left baffle and the right baffle, a locking bolt passes through the locking hole 36 and the installation groove and is connected to a nut to fix the positions of the left baffle and the right baffle. The left conveyor belt and the right conveyor belt are respectively installed on the left and right frames. The left and right suction belts of the positioning film feeding device are respectively driven and arranged on the left and right suction platforms. The left and right suction platforms are also respectively installed on the left and right frames. The right frame is connected to a transmission component for driving its horizontal movement. The transmission component includes a lead screw mechanism and a guide rod, that is, the screw rod and the guide rod are horizontally installed on the frame. The right frame is connected to a nut, and a guiding hole matching the guide rod is formed in the right frame. The left frame can be fixedly installed on the frame. Of course, the left frame can also move horizontally according to requirements. The adjustment of the above two methods can be shared and selected according to requirements.

[0047] The lifting component for driving the lifting of the blocking block can adopt a cylinder or a lead screw mechanism. The lifting component can be installed on the frame or the material supporting member. The lifting component is a lifting cylinder. The lifting cylinder is installed on the material supporting member. The piston rod of the lifting cylinder is connected to the blocking block, and the blocking block is driven to lift by the lifting cylinder. If the blocking block adopts a swinging mode, the blocking block is hinged to the material supporting member. The swinging component is a cylinder. The cylinder is installed on the material supporting member. One end of the blocking block is connected to the cylinder, that is, the cylinder drives the blocking block to swing up and down. When the material is horizontally wrapped, the blocking block is placed below the clamping channel, and the material is normally conveyed to the push plate in the clamping channel. When the material needs to be side-standing wrapped, the lifting component drives the blocking block into the clamping channel. The material enters the clamping channel in a horizontal state. The left and right conveyor belts drive the material to move forward. The blocking block blocks the lower end of the material. The forces acting on both sides of the material by the left and right conveyor belts cause the material to flip forward with the blocked part as the center until the material is no longer blocked by the blocking block. At this time, the material is in a side-standing state, and the left and right conveyor belts continue to convey the material to the push plate.

[0048] The present invention can also fold multi-layer stacked materials, as shown in the appendix Figure 8, a backing plate 54 is provided between the left and right air suction platforms and the left and right conveyor belts. The backing plate is installed on the left and right air suction platforms, and a material stacking component is provided below the backing plate. The material stacking component includes a support plate 55. The support plate is swingably installed on the frame 1 and can be driven to swing by a cylinder, or one side of the support plate is hinged to the frame, and a torsion spring for opening the support plate is provided at the hinge. When the push plate pushes the material upward, the material pushes the support plate, and the thrust overcomes the elastic force of the torsion spring to make the support plate swing upward. The bottom of the support plate is vertically arranged. After the material passes through the installation cavity, the torsion spring makes the support plate swing downward to an open state to hold the material above. At this time, the push plate moves downward again to receive the material, and the next layer of material moves upward again and is placed below the upper layer of material, so as to achieve stacking. Then the push plate pushes the stacked material upward until it enters the wrapping station.

[0049] See attachment Figure 10-14, the main folding device of the wrapping mechanism includes a positioning component, a front-back folding component, and a bottom folding component. The positioning component includes an upper baffle 77 and a rear push plate 87 that moves back and forth. The upper baffle is arranged above the front-back folding component, and the upper baffle extends forward to above the side folding. The rear push plate can push the material into the side folding station; the front-back folding component includes a front baffle 84 and a rear baffle 82. The distance between the front baffle and the rear baffle matches the length of the wrapped material and forms a front-back folding channel. This station is the front-back folding station. The wrapping station includes a front-back folding station, a bottom folding station, and a side folding station; below the front-back folding component is a packaging film station 83, that is, the packaging film is placed on the packaging film station; the bottom folding component includes a pallet 75 that moves back and forth. The pallet inserts to wrap the rear end of the packaging film around the lower end of the material, and the pallet 75 holds the material; the side folding device includes a side insertion component. The side insertion component includes a front insertion plate 79 and rear insertion plates 60, 65 that move back and forth. There are two left and right front insertion plates and rear insertion plates respectively. The rear insertion plates are arranged on both sides of the rear push plate 87. When the pallet 75 holds the material, the rear insertion plates 60, 65 insert to fold the two sides of the rear end of the packaging film inwards and fit them to the material; the push plate pushes the material upwards to enter the front-back folding channel formed by the front baffle 84 and the rear baffle 82. The front baffle and the rear baffle cause the packaging film covering the material to fold down along the front end and the rear end of the material. The packaging film wraps around the upper end face and the front and rear end faces of the material. The material continues to move upwards and enters the bottom folding station. The pallet 75 moves forward to wrap the rear end of the packaging film around the lower end of the material and hold the material. Then, after the rear insertion plates 60, 65 insert, they fold the two sides of the rear end of the packaging film inwards. And the rear insertion plates and the rear push plate 87 continue to move forward to push the material forward. Passing through the front baffle 84, the front baffle causes the front end of the packaging film to wrap around the lower end of the material, and the front end of the packaging film covers the rear end. The overlapping part of the two is the bottom sealing part. During the above process, the pallet 75 always holds the material to keep the packaging film and the material in a tight state; when the rear push plate 87 pushes the material forward and passes through the front insertion plate 79, the front insertion plate folds the two sides of the front end of the packaging film inwards and fits them to the material. The rear insertion plates move forward synchronously with the rear push plate 87. The rear insertion plates keep the rear side folding part in a folded state and in a tight state. In this way, the wrapped product is tightly wrapped and has a beautiful appearance. After completing the wrapping operation, the rear insertion plates, the push plate, and the pallet move backward and reset.

[0050] The side folding device further includes an up-and-down folding component, which is arranged in front of the front-and-back folding component. The up-and-down folding component includes a workbench 91, an upper guide groove 80 and a lower guide groove 81. The upper guide groove is inclined upward along the conveying direction, and the lower guide groove is inclined downward along the conveying direction. The upper guide groove and the lower guide groove can be formed by guide rods. In this embodiment, the upper guide groove and the lower guide groove are mainly composed of an upper guide plate, an intermediate plate 85 and a lower guide plate 86. The upper guide plate and the intermediate plate form the upper guide groove 80, and the lower guide plate 86 and the intermediate plate 85 form the lower guide groove 81. The inlet end of the upper guide groove is at the lower end, and the outlet end is at the upper end. The inlet end of the lower guide groove is at the upper end, and the outlet end is at the lower end. For the sake of compact structure, the front plug plate 79 can replace the upper guide plate. This plug plate can not only be used as a front plug plate, but also as an upper guide plate. The upper guide groove 80 folds the lower surface of the packaging film upward, and the lower guide groove 81 folds the upper surface of the packaging film downward. The rear push plate pushes the material to continue moving forward after passing through the front plug plate, and then enters the side folding station. The two sides of the packaging film are folded along the upper guide groove 80 and the lower guide groove 81 to complete the side folding.

[0051] In order to improve work efficiency, after the wrapping operation is completed, the rear plug plates 60, 65 and the support plate 75 can be reset in time and the wrapping quality should be ensured. A bottom sealing device is provided below the front plug plate. The bottom sealing device includes a heat sealing die 78 that moves up and down, that is, the heat sealing die is used to heat-seal the above-mentioned bottom sealing part. After heat-sealing, the rear plug plates and the support plate 75 can retreat and reset, so that the packaging film wrapped around the material will not become loose.

[0052] To make the packaging tighter, the distance between the two rear plug plates 60, 65 and the two front plug plates 79 is similar to the width of the material and should not be too large. To enable the rear plug plates and the front plug plates to be inserted smoothly without colliding with the material, the insertion ends of the rear plug plates and the front plug plates are inclined outward, that is, the size of the insertion ends is larger than the width of the material. Other solutions can also be adopted, as shown in the appendix Figure 3-5, the rear insertion plate includes a left insertion plate 60 and a right insertion plate 65. The rear insertion plate is installed on the mounting seat 68, and the rear insertion plate swings left and right on the mounting seat. Before side insertion, the left insertion plate 60 and the right insertion plate 65 are inclined, and the insertion ends of the two insertion plates are larger than the other ends, that is, the distance between the front ends of the left insertion plate 60 and the right insertion plate 65 is larger than that at the rear end. In this way, the material can smoothly enter the insertion ends, and the material will not collide with the left and right insertion plates. During side insertion, the left and right insertion plates swing towards each other, and the two insertion plates are set straight and parallel. At this time, the distance between the left insertion plate 60 and the right insertion plate 65 matches the width of the wrapped material, that is, the distance between the left and right insertion plates is similar to the width of the material, neither too large nor too small, so as to achieve a tight wrap. As the material enters, the left insertion plate and the right insertion plate fold the packaging film on both sides of the material inward, making the packaging film fit on both sides of the material. The present invention not only makes the packaging film tightly wrapped around the material without loosening, but also avoids the collision between the material and the insertion plates, preventing damage to the surface of the material and greatly improving the wrapping quality.

[0053] The left - right swing of the rear insertion plate on the mounting seat 68 can be achieved by different means: First, the rear insertion plate is hinged to the mounting seat and is connected to a power member that drives its swing. The power member can be a cylinder. The cylinder is installed on the mounting seat, and the piston rod of the cylinder is connected to the rear insertion plate. The cylinder drives the rear insertion plate to swing left and right on the mounting seat. The cylinder drive can also be replaced by a combination of a lead - screw mechanism and a motor. To make the swing of the rear insertion plate more stable, a guide groove is provided on the mounting seat, and a guide block is provided at the lower end of the rear insertion plate. The guide block is placed in the guide groove. When the rear insertion plate swings, the guide block slides in the guide groove. Second, the rear insertion plate is hinged to the mounting seat, and the left insertion plate 60 and the right insertion plate 65 are provided with a force that makes their rear ends approach each other. That is, before side insertion, the left insertion plate and the right insertion plate are inclined, and the distance between their front ends is larger than that at the rear end. The force can also be achieved in different ways. One way is that one end of the rear insertion plate is connected to one end of a tension spring, and the other end of the tension spring is connected to the mounting seat. The pulling force of the tension spring makes the rear ends of the left insertion plate and the right insertion plate closer, making the rear insertion plate inclined. When the material enters between the two insertion plates, due to the narrow distance between the rear ends of the two insertion plates, the material squeezes the two insertion plates, overcoming the pulling force of the tension spring, and making the two insertion plates parallel. The second way is shown in the appendix Figure 1 and 2, a horizontally arranged guide rod 69 is installed on the mounting seat 68. One end 70 of the guide rod is connected to the mounting seat, and a limit block 62 is provided at the other end of the guide rod. A second limit block 74 is also provided on the guide rod. The rear end 63 of the rear insertion plate is movably arranged on the guide rod 69. A spring 67 acting on the rear insertion plate is provided on the guide rod. The elastic force of the spring also makes the rear ends of the left insertion plate 60 and the right insertion plate 65 approach each other, making the left and right insertion plates inclined. The limit block 62 prevents the left and right insertion plates from tilting excessively and prevents the rear ends of the insertion plates from detaching from the guide rod. When the material enters between the two insertion plates, the material squeezes the two insertion plates and overcomes the elastic force of the spring 67, making the originally inclined insertion plates become straight. At this time, the insertion plates are in contact with the second limit block 74, and the second limit block 74 also prevents the insertion plates from tilting in the reverse direction. In this way, when inserting laterally, the insertion plates remain in a straight state.

[0054] To make the left and right insertion plates quickly become straight, a stop block 64 is installed on the side of the rear insertion plate. The stop blocks on the left and right insertion plates are arranged facing each other. The stop blocks are provided at the front end of the rear insertion plate, and the stop block 64 is perpendicular to the rear insertion plate. When the material enters the insertion ends of the left and right insertion plates, the material presses against the stop block 64. When the left and right insertion plates are inclined, an included angle is formed between the end face of the material and the stop block. The pressure of the material acting on the stop block overcomes the elastic force of the spring or the pulling force of the tension spring, making the left and right insertion plates quickly become straight, and the end face of the material is in contact with the stop block 64, thereby improving the folding effect. The front end 73 of the insertion plate is arc-shaped, so that the insertion plate will not scratch the material and the packaging film, improving the quality of overwrapping. A reinforcing plate 66 is installed on the other side of the rear insertion plate. The reinforcing plate 66 is installed at the rear end of the rear insertion plate, and the acting force driving the rear insertion plate to swing is all applied to the reinforcing plate. The reinforcing plate improves the strength of the rear insertion plate and extends the service life of the rear insertion plate. Since the widths of the materials are different, to be applicable to different material packagings, the mounting seat 68 is movably installed on the moving seat 62, that is, the left and right insertion plates can move horizontally on the moving seat. For the convenience of installation, a horizontally arranged installation groove 72 is provided on the moving seat. After adjusting the positions of the left and right insertion plates, the locking bolt 71 passes through the installation groove and is connected to the mounting seat 68 to fix the mounting seat on the moving seat 61. The above structure is also applicable to the front insertion plate, which can be selected according to requirements.

[0055] For packaging materials of different specifications, the rear baffle 82 can move back and forth relative to the front baffle 84 to adjust the distance between the front and rear baffles so as to accommodate materials of different lengths. A longitudinally arranged guide rail is provided on the frame, and the rear baffle is slidably arranged on the guide rail. The rear baffle moves back and forth on the guide rail. The movement of the rear baffle can be manual, and after adjustment, it can also be locked by a locking screw or the rear baffle can be driven to move by a lead screw mechanism; the moving seat 61 is connected to a transmission component that drives it to move back and forth. The transmission component can be a cylinder. In this embodiment, the transmission component includes a transmission wheel, a transmission belt arranged on the transmission wheel, and a motor that drives the transmission wheel to rotate. The moving seat is connected to the transmission belt. To ensure stable operation, a linear guide rail 76 is also provided on the frame, and the moving seat 61 moves along the linear guide rail. The rear push plate is installed on the moving seat, and the forward and backward movement of the moving seat will drive the rear push plate to act. To improve the positioning effect, the positioning component further includes a rear positioning member 89. The rear positioning member is vertically installed on the rear baffle 82. A wire groove 88 for the rear positioning member to pass through is formed on the support plate 75. The rear positioning member is used as the rear end positioning of the material. After the material passes through the front and rear baffles, it enters the bottom folding station. The material is limited by the rear positioning member 89, the upper baffle 77, and the previous folded material at the front end, and the folding effect is better.

[0056] See attached Figure 15-17 In the side sealing mechanism, the side sealing channel is divided into a heat sealing part and a shaping part. Both the left heat sealing component and the right heat sealing component include a transmission wheel 103, a transmission belt 104 arranged on the transmission wheel, and a heating component and a buffer shaping component arranged inside the transmission belt. The transmission belt 104 is arranged vertically. The heating component is arranged behind the buffer shaping component. The part where the heating component is arranged is the heat sealing part, and the part where the buffer shaping component is arranged is the shaping part. The buffer shaping component laterally extrudes the product, and the extrusion force has a certain buffer force rather than a hard extrusion. In this way, there is a certain extrusion on the product to shape the heat sealing part of the product, and the buffer force avoids damage to the product. The wrapped product enters the side sealing channel 110. The heat of the heating component seals the packaging film, and at the same time, the transmission belt conveys the product forward. Therefore, the product is heat-sealed during the conveying process. After the product passes through the heat sealing part, it enters the shaping part, and the buffer shaping component extrudes the product to shape the heat sealing position of the product and prevent the heat sealing part from spreading, thereby providing a heat sealing effect. Finally, the transmission belt sends the product out.

[0057] The bottom end of the side sealing channel 110 is provided with a bottom conveying component, that is, when the product enters the side sealing channel, the bottom conveying component and the transmission belt convey the product together, which not only prevents the product from leaving the side sealing channel, but also prevents the packaging film on the surface of the material from wrinkling. In this embodiment, the bottom conveying component includes a bottom left conveying belt 107 and a bottom right conveying belt 108 arranged horizontally, and the bottom left conveying belt and the bottom right conveying belt are synchronized with the transmission belt.

[0058] The heating assembly includes a heating plate 105, which is attached to the transmission belt 104. The heat of the heating plate is transferred to the packaging film through the transmission belt. The transmission belt is not only resistant to high temperatures, which means that high temperatures will not damage the transmission belt, but also has a good heat transfer effect. To avoid the temperature of the heating plate from exceeding the range, the heating assembly also includes a temperature sensor. A heating tube is installed in the heating plate 105. The temperature sensor and the heating tube are both connected to the electrical controller. When the temperature sensor detects that the temperature of the heating plate reaches the highest value, the electrical controller sends a command to the heating tube to stop heating. On the contrary, when the temperature sensor detects that the temperature of the heating plate drops to the lowest value, it sends a command to the heating tube to heat it, so as to ensure that the temperature of the heating plate 105 makes the packaging film heat-sealed firmly. The heating assembly also includes a spring sheet 106, which is connected to the spring sheet 106. The elastic force of the spring sheet makes the two heating plates 105 of the left and right heat-sealing components fit with the transmission belt 104 and press against the side of the product to ensure that the packaging film wrapped outside the product is heat-sealed.

[0059] The buffer shaping component includes a shaping sheet 109 with elasticity, and the shaping sheet can also be a spring sheet. The spring sheet has many structures, and the attached Figure 16 Two structures of spring sheets have been provided, which will not be elaborated one by one. The elastic force of the spring sheet squeezes the side of the product, and the spring sheet has a buffering effect to avoid excessive squeezing. To improve the shaping effect, the shaping part of the side sealing channel 110 is slightly smaller than the spacing of the heat sealing part, so that the squeezing force is greater and the shaping effect is better.

[0060] For easy maintenance, the left heat-sealing component 100 and the right heat-sealing component 101 are mounted on a flip seat 102, which is hinged to the frame 1. The flip seat 102 is pushed to flip upward relative to the frame, so that the components below the heat-sealing mechanism can be maintained, with large space and more convenient operation. Figure 17, the flipping seat includes a left support plate 115, a right support plate 111, and a cross beam 114 installed on the left and right support plates. A sliding seat is provided on the cross beam, and the right heat-sealing component 101 is installed on the sliding seat. The right heat-sealing component can move horizontally on the cross beam 114 to adjust the distance between the left and right heat-sealing components, suitable for heat-sealing of different specifications of materials; the flipping seat further includes a flipping plate 113, and the flipping plate is hinged to the frame 1, that is, the flipping seat is hinged to the frame. A longitudinal guide rail 112 is provided on the flipping plate 113, and the left support plate 111 is slidably arranged on the longitudinal guide rail. The left and right heat-sealing components can move left and right relative to the frame, so that the side-sealing channel 110 is connected to the workbench 91 of the previous process, and the overall structure of the machine is more compact.

[0061] The transmission of the film feeding mechanism and the wrapping mechanism of the present invention are both driven by servo motors, and the servo motors are electrically connected to the electrical controller. That is, the operation of the film feeding mechanism and the wrapping mechanism is controlled by the electrical controller, and the sensors of the present invention are also controlled by the electrical controller. For packaging of different specifications of materials, by adjusting the operation time and speed of each mechanism, the mechanisms can be coordinated with each other. For example, if the material is lengthened, the required packaging film also needs to be lengthened. Then, the traction speed can be increased and the cutting time of the cutting knife can be controlled to make the unit packaging film longer. During the wrapping operation, the rear push plate pushes the material to fold from the bottom to complete the side folding. Similarly, due to the lengthening of the material, the moving speed and time of the rear push plate, rear insertion plate, and support plate need to be adjusted accordingly. The present invention makes each mechanism coordinated with each other by controlling the transmission speed and time, which is also more convenient for the staff to operate and improves work efficiency.

[0062] When the present invention works, the material is wrapped in a side-standing manner. The feeding roller sends the front end of the coil material to the feeding ends of the left and right suction belts. The film cutting device 11 cuts the coil material into unit packaging films. The left and right suction belts convey the cut packaging film forward to the packaging film station, and the front and rear ends of the packaging film are positioned by the film feeding auxiliary components. The material is placed on the conveyor belt 30 and conveyed forward by the conveyor belt. The material enters the pinch conveying channel 32 until it touches the positioning baffle 51. The conveyor belt 30 and the left and right conveyor belts continue to feed the material. The material starts to pile up from the positioning baffle until the stock sensor 46 detects it. At this time, the electrical controller sends a command to the push plate 47, and the push plate pushes the material upward. The material moves upward along the conveying channel 49, passes through the packaging film station, and enters the wrapping station together with the packaging film. After the material is sent out, the subsequent material continues to be conveyed forward until the frontmost material touches the positioning baffle, and the material in the pinch conveying channel piles up again, and so on. The material first enters the front and rear folding stations of the wrapping station. The front and rear baffles fold the front and rear ends of the packaging film downward along the surface of the material. At this time, the packaging film covers the upper surface, front end surface and rear end surface of the material. Then the material enters the bottom folding station. The material touches the upper baffle, and the support plate 75 extends out to fold the rear end of the packaging film forward, covering the lower end surface of the material and supporting the material. Then the rear insertion plates 60 and 65 extend out to fold the two sides of the rear end of the packaging film inward. At this time, the rear push plate 87 pushes the material forward, and the rear insertion plates move forward synchronously to prevent the completed folded part from becoming loose. When the material moves forward, the front end of the material passes through the front baffle 84 and the front insertion plate 79. The front baffle folds the front end of the packaging film backward and covers it on the bottom of the material. The front insertion plate 79 makes the two sides of the front end of the packaging film fold inward. The front end of the packaging film is folded backward by the front baffle. The front end of the material enters the workbench 91, and the lower end of the packaging film enters the upper guide groove 80 and folds upward. The upper end of the packaging film enters the lower guide groove 81 and folds downward. When the packaging film completes the upper and lower folding, the front end of the packaging film covers the rear end of the packaging film. The heat sealing die 78 moves upward to seal the bottom heat sealing part. The rear push plate 87, the support plate 75 and the rear insertion plates 60 and 65 move backward and reset. The material that has completed the wrapping operation waits for the next material to push it forward to the side sealing process. The wrapped material is pushed into the side sealing channel. The conveyor belt and the bottom conveying component convey the wrapped material forward, pass through the heat sealing part. The heating component performs side sealing on the packaging film, that is, the material is heat-sealed during the conveying process. After the material passes through the heat sealing part, it enters the shaping part. The buffer shaping component extrudes the product to shape the heat sealing position of the product, preventing the heat sealing part from coming apart and improving the heat sealing effect. Finally, the conveyor belt sends the product out of the side sealing channel, thus completing the three-dimensional wrapping.

Claims

1. A three-dimensional wrapping machine, comprising a machine frame, a film feeding mechanism, a material feeding mechanism, a wrapping mechanism and a side sealing mechanism, wherein the side sealing mechanism is arranged in front of the wrapping mechanism, and is characterized in that: The feeding mechanism includes a feeding component and a feeding-in component. A push plate that moves up and down is provided at the tail end of the feeding component. The wrapping mechanism is arranged above the feeding component and includes a main body folding device and a side folding device. The side sealing mechanism includes a turning seat that swings up and down, and a left heat sealing component and a right heat sealing component mounted on the turning seat. The side end of the turning seat is hinged to the frame. There is a side sealing channel between the left heat sealing component and the right heat sealing component, and the side sealing channel is connected to the workbench of the side folding device. The film feeding mechanism includes a traction device, a film cutting device, and a positioning film feeding device. The traction device and the film cutting device are arranged below the turning seat, and the positioning film feeding device is arranged between the main body folding device and the feeding component. The feeding-in component includes a conveyor belt that is horizontally arranged. The feeding component includes a left conveyor belt and a right conveyor belt that are vertically arranged, and there is a clamping feeding channel between the two. The rear end of the clamping feeding channel is connected to the conveyor belt, and a positioning baffle is provided at the front end of the clamping feeding channel. A stop block that enters and exits the clamping feeding channel from below is provided on the frame, and the stop block is connected to a lifting component that drives it to move up and down or the stop block is connected to a swinging component that drives it to swing up and down. The feeding component further includes a material supporting member that is arranged below the left conveyor belt and the right conveyor belt. The conveyor belt is provided with two side baffles, namely a left side baffle and a right side baffle. The side baffles are longitudinally arranged and move relatively horizontally, and the left conveyor belt and the right conveyor belt move relatively horizontally. A limiting baffle is provided behind the positioning baffle, and a conveying channel is formed between the positioning baffle and the limiting baffle. The limiting baffle is mounted on a support rod that moves left and right, and the support rod is mounted on an adjusting seat that moves up and down.

2. The three-dimensional wrapping machine according to claim 1, characterized in that The turning seat includes a left support plate, a right support plate, and a cross beam mounted on the left support plate and the right support plate. A sliding seat is slidably arranged on the cross beam, and the right heat sealing component is mounted on the sliding seat. The turning seat further includes a turning plate that is hinged to the frame, and a longitudinal guide rail is provided on the turning plate. The left support plate is slidably arranged on the longitudinal guide rail.

3. The three-dimensional wrapping machine according to claim 1, characterized in that The positioning film feeding device includes a suction belt, and the suction belt includes a left suction belt and a right suction belt. Film feeding auxiliary components are provided at both ends of the left suction belt and the right suction belt. The film feeding auxiliary components include a set of pressure wheels that cooperate with the suction belt.

4. The three-dimensional wrapping machine according to claim 1, characterized in that The main body folding device includes a positioning component, a front-back folding component, and a bottom surface folding component. The positioning component is arranged above the front-back folding component. The positioning component includes an upper baffle and a rear pushing plate that moves back and forth. The upper baffle extends forward above the upper-lower folding component. The front-back folding component includes a front baffle and a rear baffle. The bottom surface folding component includes a supporting plate that moves back and forth. The side folding device includes a side inserting component and an upper-lower folding component. The upper-lower folding component is arranged in front of the front-back folding component. The side inserting component includes a front inserting plate and a rear inserting plate that moves back and forth. There are two left and right pieces for both the front inserting plate and the rear inserting plate. The rear inserting plate is arranged on both sides of the rear pushing plate. The upper-lower folding component includes an upper guiding groove and a lower guiding groove. The upper guiding groove and the lower guiding groove are arranged above the workbench.

5. The three-dimensional wrapping machine according to claim 4, characterized in that A bottom sealing device is arranged below the front inserting plate. The bottom sealing device includes a heat sealing die that moves up and down. The rear inserting plate is hinged to the mounting seat. A force that makes it tilt towards the rear pushing plate is arranged at the rear end of the rear inserting plate.

6. The three-dimensional wrapping machine according to claim 4, characterized in that The distance between the front baffle and the rear baffle matches the length of the wrapping material. The rear baffle can move back and forth relative to the front baffle. The positioning component further includes a rear positioning piece. The rear positioning piece is vertically installed on the rear baffle. A wire groove for the rear positioning piece to pass through is opened on the supporting plate. The rear pushing plate is installed on the moving seat. The upper guiding groove and the lower guiding groove are mainly composed of an upper guiding plate, an intermediate plate, and a lower guiding plate. The upper guiding plate and the intermediate plate form the upper guiding groove. The lower guiding plate and the intermediate plate form the lower guiding groove.

7. The three-dimensional wrapping machine according to claim 1, characterized in that The side sealing channel is divided into a heat sealing part and a shaping part. Both the left heat sealing component and the right heat sealing component include a driving wheel, a transmission belt arranged on the driving wheel, and a heating component and a buffer shaping component arranged inside the transmission belt. The transmission belt is arranged vertically. The heating component is arranged behind the buffer shaping component.

8. The three-dimensional wrapping machine according to claim 7, characterized in that A bottom conveying component is arranged at the bottom end of the side sealing channel. The bottom conveying component includes a horizontally arranged bottom left conveyor belt and a bottom right conveyor belt. The bottom left conveyor belt and the bottom right conveyor belt are synchronized with the transmission belt. The heating component includes a heating plate. The heating plate is attached to the transmission belt. The buffer shaping component includes an elastic shaping piece. The spacing of the shaping part of the side sealing channel is smaller than that of the heat sealing part. The heating component further includes a spring piece. The heating plate is connected to the spring piece.

9. The three-dimensional wrapping machine according to claim 1, characterized in that A position sensor is installed on the positioning baffle. A stock sensor is arranged behind the position sensor. A linkage sensor is arranged at the discharging end of the conveyor belt. The position sensor, the stock sensor, the linkage sensor, the feeding component, and the feeding component are all connected to the electrical controller. The transmissions of the film feeding mechanism and the wrapping mechanism are both driven by servo motors, and the servo motors are electrically connected to the electrical controller.

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