Plastic packaging device for screwdriver packaging box

Abstract

The utility model discloses a screwdriver packing box plastic packaging device, which comprises an equipment main body, the equipment main body is provided with a conveying assembly, a film feeding assembly, a bonding assembly, a shrinking machine and an inspection assembly, the conveying assembly is used for conveying a packing box, the film feeding assembly is used for conveying a shrinking film, and the bonding assembly is used for bonding the shrinking film. The bonding assembly is used for bonding shrink films, a feeding port is formed in one end of the shrinking machine, a discharging port is formed in the other end of the shrinking machine, the inspection assembly is arranged at the discharging port and comprises a fixing frame, a first movable air cylinder and a second movable air cylinder, the fixing frame is fixed to the discharging port and is provided with a sensor, and the first movable air cylinder is connected with the second movable air cylinder. The first movable air cylinder is fixed to the top of the fixing frame, the two sets of second movable air cylinders are fixed to the two sides of the fixing frame, and the head ends of the first movable air cylinder and the head ends of the second movable air cylinders are provided with matched baffles to drive the first movable air cylinder and the second movable air cylinders to slide.

Description

Technical Field

[0001] The utility model relates to the technical field of screwdriver production, in particular to a plastic sealing device for a screwdriver packaging box. Background Art

[0002] A screwdriver is a common tool used to turn a screw to put it in place. It usually has a thin wedge-shaped head that can be inserted into the slot or notch of the screw head. Screwdrivers can be divided into flat head, cross head, Pozi head, hexagonal head, Y-shaped head, etc. according to different head shapes. As a widely used maintenance tool, there is a large production demand. There are many kinds of screwdriver designs on the market, and their appearance packaging is also diverse. Since screwdrivers are sharp objects, their outer packaging is required to have strong hardness and sealing to play a certain protective role. At present, in the prior art, most items are usually packaged and sealed by heat shrink packaging machines. Although it has wide applicability and high packaging efficiency, it also has certain shortcomings. That is, after the items are sealed by the heat shrink packaging machine, the staff often directly sorts and packs the items, because their traditional heat shrink packaging machines are usually not equipped with an inspection mechanism after the sealing is completed, so that most of the sealed items are manually inspected, which increases the labor intensity to a certain extent. When a certain amount of items are accumulated, there is also a phenomenon of missed inspections through manual inspection, which has a certain impact on the later processing of the items. In particular, for sharp items such as screwdrivers and their matching wedges, there are high requirements for the sealing effect of their packaging boxes. Therefore, it is necessary to design a screwdriver packaging box sealing device with an inspection mechanism to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a screwdriver packaging box plastic sealing device with reasonable structural design and capable of checking the plastic sealing effect of the packaging box after plastic sealing.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problems is: a screwdriver packaging box plastic sealing device, including an equipment main body, on which a conveying component, a film feeding component, a bonding component, a shrinking machine and an inspection component are arranged, the conveying component is used to convey the packaging box, the film feeding component is used to convey the shrink film, the bonding component is used to bond the shrink film, one end of the shrinking machine is provided with a feed port, and the other end is provided with a discharge port, the inspection component is placed at the discharge port, and includes a fixed frame, a first movable cylinder and a second movable cylinder, the fixed frame is fixed at the discharge port and is provided with a sensor, the first movable cylinder is fixed on the top of the fixed frame, the second movable cylinder is provided with two groups fixed on both sides of the fixed frame, the head ends of the first movable cylinder and the second movable cylinder are both provided with an adaptor baffle to drive sliding, and the equipment main body is also provided with a collection box, the collection box is placed at the end of the conveying component and is adapted to the inspection component and is provided with two cavities.

[0005] Further: the conveying assembly adopts a conveyor belt for conveying, which includes a frame, a conveyor belt and a transmission shaft. The transmission shaft is rotatably arranged at both ends of the frame and is driven to rotate by a first driving component arranged at one end of the frame. The conveyor belt passes through the frame and connects the transmission shafts at both ends.

[0006] Furthermore: a plurality of through holes are evenly distributed on the conveyor belt of the conveying assembly.

[0007] Further: the sensors on the fixing frame are provided with multiple groups, and the adapter seats provided thereon are fixed on the fixing frame at different positions through rotation thereof.

[0008] Further: rubber pads are provided on the baffles connected to the head ends of the first movable cylinder and the second movable cylinder, and the baffle connected to the head end of the second movable cylinder is provided in an inclined surface.

[0009] Further: the film conveying assembly adopts roller conveying, which includes a film frame, and a plurality of groups of rollers are rotatably arranged on the film frame. The rollers are installed on the film frame through a detachable structure and driven to rotate on the film frame through a second driving component arranged on the film frame. The rollers are also provided with an adaptive adjustment part.

[0010] Further: the bonding assembly includes a second fixed frame, a bonding head, a pressing wheel group and a cutting knife group, the second fixed frame is fixed on the equipment body, the bonding head is arranged into two groups and respectively placed on both sides of the second fixed frame and driven to slide relatively on the second fixed frame by a third active cylinder arranged at one end of the second fixed frame, the pressing wheel group is rotatably arranged on the top of the second fixed frame and placed on one side of the two groups of bonding heads, and is driven to rotate relatively by a third driving component arranged on the top of the second fixed frame, the cutting knife group adopts two groups of cutting knives to cut up and down and are respectively fixed on the adapted second fixed frame, and the two groups of cutting knives are driven to slide relatively by a fourth active cylinder arranged on the second fixed frame, and the bonding head and the cutting knife group are both connected to a heating device.

[0011] Further: the base of the adhesive head is adapted to be rotatably arranged on the second fixing frame, and the pressing wheel set and the second driving component are installed on the second fixing frame through a detachable structure.

[0012] Furthermore: the cutting knife group also includes a toothed cutting knife, which is slidably arranged in the cutting knife seat and driven to slide on the knife seat by a fifth movable cylinder arranged on its second fixed frame.

[0013] Furthermore: the second fixing frame is also provided with a code reader and a second sensor which are placed at one end of the feed port of the shrinking machine.

[0014] Compared with the prior art, the utility model has the following advantages and effects:

[0015] This type of plastic sealing device equipped with an inspection component is convenient for collection and sorting, and it is also convenient for operators to perform secondary plastic sealing and other operations on unqualified products. The inspection component can monitor the packaging qualification rate in real time. When the qualification rate is low, the relevant components on the equipment body can be controlled to stop working and send out an alarm signal, which is convenient for operators to find abnormal problems and deal with abnormal situations in time, such as temperature adjustment of the shrink machine, etc., to further improve the plastic sealing effect. In addition, with the assistance of its inspection component, its sensor can be installed and adjusted at corresponding angles for different sizes of packaging boxes, which improves the accuracy of detection data and prevents missed detection. The sensor can detect the flow of the packaging box at the discharge port. Once a blockage or abnormal situation occurs, an alarm signal can be issued in time to help the operator deal with it in time, thereby ensuring operating efficiency and improving equipment operation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1-2 The utility model is a structural schematic diagram of a plastic sealing device for a screwdriver packaging box according to an embodiment of the utility model.

[0017] Figure 3-4 It is an enlarged view of the inspection component of the embodiment of the utility model.

[0018] Figure 5-6 It is an enlarged view of the bonding assembly of the embodiment of the utility model.

[0019] Figure numbers: conveying component 1, frame 11, conveyor belt 12, through hole 121, transmission shaft 13, film feeding component 2, film frame 21, slide 211, roller 22, adjustment component 221, bonding component 3, second fixed frame 31, slot 311, bonding head 32, third movable cylinder 321, hinge 322, pressing wheel group 33, cutting knife group 34, knife seat 341, fourth movable cylinder 35, toothed cutting knife 36, fifth movable cylinder 37, shrinking machine 4, feed port 41, discharge port 42, inspection component 5, fixed frame 51, first movable cylinder 52, second movable cylinder 53, baffle 54, rubber pad 541, inclined surface 542, sensor 6, seat body 61, collection box 7, cavity 71, code reader 8, first drive component 101, second drive component 102, third drive component 103. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0021] See also Figure 1-4 The present embodiment relates to a plastic sealing device for a screwdriver packaging box, comprising a device body, on which a conveying component 1, a film feeding component 2, a bonding component 3, a shrinking machine 4 and an inspection component 5 are arranged. The conveying component 1 is used to convey the packaging box, the film feeding component 2 is used to convey the shrink film, the bonding component 3 is used to bond the shrink film, the shrinking machine 4 is provided with a feed port 41 at one end and a discharge port 42 at the other end, and the inspection component 5 is placed at the discharge port 42, which includes a fixing frame 51, a first movable frame 52, a second movable frame 53, a second movable frame 54, a second movable frame 55, a second movable frame 56, a second movable frame 57, a second movable frame 58, a second movable frame 59, a second movable frame 51, a second movable frame 52, a second movable frame 54, a second movable frame 55, a second movable frame 56, a second movable frame 57, a second movable frame 58, a second movable frame 59, a second movable frame 51, a second movable frame 5 Cylinder 52 and second movable cylinder 53, the fixed frame 51 is fixed at the discharge port 42 and is provided with a sensor 6, the first movable cylinder 52 is fixed on the top of the fixed frame 51, and the second movable cylinder 53 is provided with two groups fixed on both sides of the fixed frame 51, and the head ends of the first movable cylinder 52 and the second movable cylinder 53 are both provided with an adapter baffle 54 to drive sliding, and a collecting box 7 is also provided on the main body of the equipment, and the collecting box 7 is placed at the end of the feeding component and is adapted to the inspection component 5 and is provided with two cavities 71.

[0022] Specifically in this embodiment, the overall structural diagram of this plastic packaging device can be referred to Figure 1 or Figure 2As shown, the conveying component 1 can adopt a synchronous belt type or roller 22 type conveying structure to convey the packaging box product. During the conveying process, its film conveying component 2 works to synchronously convey the required shrink film, and cuts and bonds the shrink film according to different types and sizes through the bonding component 3, so that the shrink film is wrapped on the outside of the packaging box. The packaging box after being wrapped with the shrink film by the bonding component 3 continues to be conveyed forward under the action of its conveying component 1, so that it arrives at the feeding port 41 of the shrinking machine 4 and the heating effect of the shrinking machine 4 makes the shrink film wrapped on the outside of the packaging box shrink until it fits with the outside of the packaging box to complete the plastic sealing. The packaging box after plastic sealing arrives at the discharge port 42 of the shrinking machine 4, and the inspection component 5 starts to work. Its specific structure can be seen in Figure 3-4 As shown, the first movable cylinder 52 on the top of the fixed frame 51 drives the adapter baffle 54 at the head end to descend, so that the packaging box stops conveying. During this period, the sensor 6 arranged on the fixed frame 51 can monitor the appearance of the packaging box after plastic sealing at the discharge port 42, and judge the quality of the products according to whether the packaging box is deformed or damaged and whether the outer shrink film is seriously wrinkled or cracked, etc., which are abnormal conditions in the packaging process. The two groups of second movable cylinders 53 on both sides of the fixed frame 51 work separately to push the packaging box to the side of the corresponding cavity 71 of the collection box 7. After the detection is completed, the first movable cylinder 52 drives the adapter baffle 54 to move upward so that the packaging box enters the corresponding cavity 71 of the collection box 7 for collection, thereby realizing the separation and processing of good and bad products. This plastic sealing device with an inspection component 5 is convenient for collection and sorting, and also convenient for operators to The unqualified products are subjected to secondary plastic sealing and other operations, and the packaging qualification rate can be monitored in real time through the inspection component 5. When the qualification rate is low, the relevant components on the equipment body can be controlled to stop working and send out an alarm signal, which is convenient for operators to find abnormal problems and deal with abnormal situations in time, such as adjusting the temperature of the shrink machine 4, so as to further improve the plastic sealing effect. In addition, with the assistance of the inspection component 5, the sensor 6 can be installed and adjusted at corresponding angles for different sizes of packaging boxes, so as to improve the accuracy of the detection data and prevent the phenomenon of missed detection, and the sensor 6 can detect the flow of the packaging box at the discharge port 42. Once a blockage or abnormal situation occurs, the relevant components stop running and send out an alarm signal in time, which is convenient for operators to deal with it in time, ensure operation efficiency, and reduce operation complexity and maintenance difficulty.

[0023] The conveying component 1 adopts a conveyor belt 12 for conveying, and includes a frame 11, a conveyor belt 12 and a transmission shaft 13. The transmission shaft 13 is rotatably arranged at both ends of the frame 11 and is driven to rotate by a first driving component 101 arranged at one end of the frame 11. The conveyor belt 12 passes through the frame 11 and connects the transmission shafts 13 at both ends. The transmission shaft 13 is driven to rotate under the drive of its first driving component 101. The transmission shaft 13 drives the conveyor belt 12 to rotate on its frame 11 to realize the conveying of the packaging box products. The conveying component 1 adopting the conveyor belt 12 has a simple structure and is easy to install and maintain. The conveyor belt 12 conveys more smoothly, so that the packaging box products are not prone to shaking, offset and jamming during the conveying process, thereby ensuring the quality of the packaging box products while improving the transmission efficiency and reducing energy loss.

[0024] The conveyor belt 12 of the conveying assembly 1 is evenly distributed with a plurality of through holes 121, which can be seen in detail in Figure 3 On the one hand, the plurality of through holes 121 evenly distributed on the conveyor belt 12 can be used to blow hot air into the inside of the shrinking machine 4 through the through holes 121 when the shrinking machine 4 is working. Compared with the traditional closed conveyor belt 12, the contact area between the external shrink film of the packaging box and the conveyor belt 12 can be further reduced, so that the contact surface between the external shrink film of the packaging box and the conveyor belt 12 is heated more evenly, with better plastic sealing effect, and the phenomenon of shrink film damage or wrinkles caused by uneven heating is reduced, so that the shrink film can achieve the best shrinking effect and ensure the integrity of the plastic sealing; on the other hand, the through holes 121 can also filter out the plastic residues and other residues generated during the bonding and cutting process of the adhesive component 3 and the plastic sealing process of the shrinking machine 4 due to the heating, cutting and shrinking of the shrink film, thereby reducing the influence of the residues remaining on the conveyor belt 12 on the plastic sealing process of the packaging box, facilitating cleaning and further reducing the frequency of daily cleaning.

[0025] The sensors 6 on the fixing frame 51 are provided with multiple groups, and the adapter seats 61 provided thereon are fixed on the fixing frame 51 and distributed at different positions, such as Figure 4As shown, the multiple groups of sensors 6 are distributed at different positions on the fixing frame 51, so that the packaging boxes after plastic sealing at the discharge port 42 can be detected at multiple angles, which can improve the comprehensiveness of the detection and the accuracy of the detection results. The installation and disassembly at different positions and heights can be conveniently performed through the adapter seat 61, and the sensor 6 is rotatably set on the adapter seat 61, and can be adaptively adjusted in angle according to the packaging box products of different sizes on the conveyor belt 12, which is particularly important for products similar to flat packaging boxes such as screwdriver packaging boxes. It can further improve the detection accuracy, ensure the accuracy of the detection data, and further reduce the time required for detection. In addition, the sensor 6 can detect the transportation condition of the packaging box products at the discharge port 42 on the conveyor belt 12, and can send out an alarm signal in time when a blockage or abnormality occurs, which is convenient for the operator to make adjustments and operation processing, thereby ensuring the operation efficiency and improving the operation stability of the equipment.

[0026] The baffle plate 54 connected to the head ends of the first movable cylinder 52 and the second movable cylinder 53 is provided with a rubber pad 541, and the baffle plate 54 connected to the head end of the second movable cylinder 53 is provided with an inclined surface 542. Figure 3 As shown, the rubber pad 541 can reduce the wear of the first movable cylinder 52 and the second movable cylinder 53 on the packaging box and the shrink film during operation, and can reduce the impact force of the baffle 54 on the packaging box, and play a certain shock-absorbing and protective role. The baffle 54 connected to the head end of the second movable cylinder 53 is designed with a slope 542, which can play a certain guiding role in the transportation of the packaging box, and further improve the products that have been inspected by the inspection component 5 to better enter the cavity 71 of the collection box 7, thereby improving the sorting efficiency while reducing the time required for sorting, and reducing the phenomenon of packaging boxes falling to the outside of the collection box 7.

[0027] The film delivery assembly 2 adopts roller 22 type delivery, which includes a film frame 21, on which a plurality of rollers 22 are rotatably arranged. The rollers 22 are mounted on the film frame 21 through a detachable structure and driven to rotate on the film frame 21 by a second driving component 102 arranged on the film frame 21. The rollers 22 are also provided with an adaptive adjustment member, such as Figure 1Or as shown in 2, the film frame 21 is fixed on the device body and placed above the conveying component 1. According to the use requirements, the shrink film required for the packaging box product can be sleeved on its roller 22. The shrink film is conveyed under the driving action of its second driving component 102 and the guiding action of multiple groups of adaptable rollers 22. This roller 22-type conveying component 1 cooperates with multiple rollers 22 to reduce the probability of deformation or damage during the conveying process and ensure the conveying stability of the shrink film. The roller 22 is installed and fixed through the adapting card slot 311 and the detachable structure of the slide slot 211 provided on the film frame 21, so that it is convenient for the installation and disassembly of multiple groups of rollers 22. The position and angle of the roller 22 can be adjusted as needed, and at the same time, it cooperates with the adjustment action of the adapting adjustment member provided on the roller 22 to adapt to the conveying of shrink films of different sizes and types to meet different use requirements.

[0028] See also Figure 5-6The bonding assembly 3 includes a second fixed frame 31, a gluing head 32, a pressing wheel group 33 and a cutting knife group 34. The second fixed frame 31 is fixed to the main body of the device. The gluing head 32 is arranged in two groups and is respectively placed on both sides of the second fixed frame 31 and driven to slide relatively on the second fixed frame 31 by a third movable cylinder 321 arranged at one end of the second fixed frame 31. The pressing wheel group 33 is rotatably arranged on the top of the second fixed frame 31 and is placed on one side of the two groups of gluing heads 32. It is driven to rotate relatively by a third driving component 103 arranged at the top of the second fixed frame 31. The cutting knife group 34 adopts a two-group cutting knife up and down cutting method. They are respectively fixed on the adapted second fixing frame 31, and the two groups of cutting knives are driven to slide relative to each other by the fourth movable cylinder 35 provided on the second fixing frame 31. The sticking head 32 and the cutting knife group 34 are both connected with a heating device. Specifically, when the packaging box product needs to be sealed on four sides, the shrink film conveyed by the film feeding component 2 needs to be melt-sealed by the adhesive component 3, that is, the two ends of the shrink film are inserted between the two groups of sticking heads 32, and the sticking head 32 on one side of the second fixing frame 31 slides and clamps under the action of its third movable cylinder 321, so that the two ends of the shrink film are in contact and the sticking head 32 is appropriately heated under the action of its heating device, so as to The two ends of the shrink film are heated and melted, and the melted shrink film passes through the pressing wheel group 33 and is driven by the third driving component 103 to drive the pressing wheel group 33 to rotate relatively, so as to press the two ends of the melted shrink film. Under the action of the gluing head 32 and the pressing wheel group 33, the two ends of the shrink film are melted and pressed to form a sleeve film structure, and the packaging box product placed on the conveyor belt 12 enters the sleeve film, driving the sleeve film to continue to move forward and pass through the cutting knife group 34. After the packaging box product completely passes through the cutting knife group 34, the cutting knife group 34 drives the two groups of cutting knives on the second fixing frame 31 under the action of the fourth active cylinder 35. The two parts of the packaging box slide relatively to each other, thereby cutting the film wrapped on the outside of the packaging box product, and the cutting knife is appropriately heated under the action of its heating device, so that the cutting knife group 34 forms a cutting opening in the film for composite bonding and melting during cutting, thereby forming a shrink film closed on all four sides on the outside of the packaging box product, so that subsequent plastic sealing operations can be performed through the shrinking machine 4. The adhesive component 3 can be adaptively adjusted according to different usage requirements in conjunction with the film feeding component 2 to feed shrink films of different sizes and types, thereby meeting the packaging requirements of packaging boxes of different products, such as packaging methods such as open-ended at both ends and open-ended at one end, thereby further improving the adaptability of this device.

[0029] The seat body of the adhesive head 32 is adapted and rotatably arranged on the second fixed frame 31, and the pressing wheel group 33 and the third driving component 103 are installed on the second fixed frame 31 through a detachable structure. The two groups of adhesive heads 32 and the seat bodies of the third movable cylinder 321 are rotatably arranged on both sides of the second fixed frame 31 through hinges 322. The pressing wheel group 33 and the third driving component 103 are installed through the detachable structure of the adapter slot 311 provided on the top of the second fixed frame 31. Specifically, when in use, the two groups of adhesive heads 32 can be rotated relative to each other on both sides of the second fixed frame 31 according to different usage requirements, and the pressing wheel group 33 can also be separated from the second fixed frame 31 through the detachable structure, thereby realizing adaptive adjustments such as folding and storage of the adhesive heads 32 and the pressing wheel group 33, so as to be suitable for the bonding of integrated films such as sleeve films, meet different usage requirements, improve the practicality and flexibility of use of such a device, and facilitate daily inspection and later maintenance.

[0030] The cutting knife group 34 further includes a toothed cutting knife 36, which is slidably disposed in the cutting knife seat 341 and driven to slide on the knife seat 341 by a fifth movable cylinder 37 disposed on the second fixing frame 31. Figure 5 As shown, after the cutting knife cuts the shrink film and bonds and melts the shrink film under the action of the heating device, the toothed cutting knife 36 can be activated according to the use requirements. The toothed cutting knife 36 is driven to slide between the two groups of cutting knives under the action of the fifth movable cylinder 37, so as to further cut the shrink film incision, so that the incision is evenly distributed in a toothed shape. Under the action of the toothed cutting knife 36, the cutting effect of the cutting knife group 34 can be further improved, and the phenomenon of shrink film adhesion affecting the subsequent plastic sealing process can be reduced. In addition, the toothed incision is also convenient for the later tearing of the shrink film and secondary plastic sealing.

[0031] The second fixed frame 31 is also provided with a code reader 8 and a second sensor 6 placed at one end of the feed port 41 of the shrink machine 4. The code reader 8 installed on the second fixed frame 31 and placed at one end of the feed port 41 of the shrink machine 4 can realize rapid identification and data collection of product information of the packaging box conveyed on the feeding component, which is beneficial to product traceability and can quickly locate and search for quality problems. At the same time, the second sensor 6 can monitor the items conveyed at one end of the feed port 41 of the shrink machine 4. When the items reach this position, the corresponding control signal can be triggered to realize automatic start and stop or adjust the working state of the shrink machine 4, thereby improving production efficiency and reducing human intervention. In addition, the second sensor 6 can also monitor the flow of packaging box products near the feed port 41. Once a blockage or abnormal situation occurs, an alarm signal can be issued in time to help the operator deal with it in time, thereby ensuring operating efficiency and improving equipment operation stability.

[0032] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A plastic sealing device for a screwdriver packaging box, characterized in that: The invention comprises an equipment main body, on which are arranged a conveying component, a film feeding component, a bonding component, a shrinking machine and an inspection component. The conveying component is used for conveying packaging boxes, the film feeding component is used for conveying shrink film, the bonding component is used for bonding shrink film, one end of the shrinking machine is provided with a feed port, and the other end is provided with a discharge port, and the inspection component is placed at the discharge port, and comprises a fixed frame, a first movable cylinder and a second movable cylinder, the fixed frame is fixed at the discharge port and is provided with a sensor, the first movable cylinder is fixed at the top of the fixed frame, the second movable cylinder is provided with two groups fixed on both sides of the fixed frame, the head ends of the first movable cylinder and the second movable cylinder are both provided with adaptable baffles to drive sliding, and a collecting box is also provided on the equipment main body, the collecting box is placed at the end of the conveying component and is adapted to the inspection component and is provided with two cavities.

2. A screwdriver packaging box plastic sealing device according to claim 1, characterized in that: The conveying assembly adopts a conveyor belt for conveying, and includes a frame, a conveyor belt and a transmission shaft. The transmission shaft is rotatably arranged at both ends of the frame and is driven to rotate by a first driving component arranged at one end of the frame. The conveyor belt passes through the frame and connects the transmission shafts at both ends.

3. A plastic sealing device for a screwdriver packaging box according to claim 2, characterized in that: A plurality of through holes are evenly distributed on the conveyor belt of the conveying assembly.

4. The plastic sealing device for a screwdriver packaging box according to claim 1, characterized in that: The sensors on the fixing frame are arranged in multiple groups, and the adapter seats arranged thereon are fixed on the fixing frame and distributed at different positions through the rotation of the adapter seats.

5. The plastic sealing device for a screwdriver packaging box according to claim 1, characterized in that: The baffle plates connected to the head ends of the first movable cylinder and the second movable cylinder are both provided with rubber pads, and the baffle plates connected to the head ends of the second movable cylinder are provided with inclined surfaces.

6. The plastic sealing device for a screwdriver packaging box according to claim 1, characterized in that: The film conveying assembly adopts roller conveying, which includes a film frame, on which multiple groups of rollers are rotatably arranged. The rollers are installed on the film frame through a detachable structure and driven to rotate on the film frame through a second driving component arranged on the film frame. The rollers are also provided with an adaptive adjustment part.

7. The plastic sealing device for a screwdriver packaging box according to claim 1, characterized in that: The bonding assembly includes a second fixed frame, a bonding head, a pressing wheel group and a cutting knife group. The second fixed frame is fixed on the equipment body. The bonding head is arranged into two groups and respectively placed on both sides of the second fixed frame and driven to slide relatively on the second fixed frame by a third movable cylinder arranged at one end of the second fixed frame. The pressing wheel group is rotatably arranged on the top of the second fixed frame and placed on one side of the two groups of bonding heads, and is driven to rotate relatively by a second driving component arranged on the top of the second fixed frame. The cutting knife group adopts an upper and lower cutting method of two groups of cutting knives and is respectively fixed on the adapted second fixed frame, and the two groups of cutting knives are driven to slide relatively by a fourth movable cylinder arranged on the second fixed frame. The bonding head and the cutting knife group are both connected to a heating device.

8. The plastic sealing device for a screwdriver packaging box according to claim 7, characterized in that: The base of the adhesive head is adapted to be rotatably arranged on the second fixing frame, and the pressing wheel set and the second driving component are installed on the second fixing frame through a detachable structure.

9. The plastic sealing device for a screwdriver packaging box according to claim 7, characterized in that: The cutting knife group also includes a toothed cutting knife, which is slidably arranged in the cutting knife seat and driven to slide on the knife seat by a fifth movable cylinder arranged on the second fixing frame.

10. The plastic sealing device for a screwdriver packaging box according to claim 7, characterized in that: The second fixing frame is also provided with a code reader and a second sensor which are placed at one end of the feed inlet of the shrinking machine.

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