Tape pulling device and packaging apparatus

Abstract

The application relates to a pulling belt device and a packaging equipment, wherein the pulling belt device comprises a feeding module and a clamping module, the feeding module comprises a feeding turntable and a plurality of rollers, the feeding turntable is used for cooperating with the plurality of rollers to provide a belt to the clamping module, and at least one of the plurality of rollers is configured to be movable to pull back the belt, and the clamping module is used for clamping the belt and moving in a first direction to pull the belt. The pulling belt device and the packaging equipment can improve the flattening quality of the protective film pull ear and improve the packaging rhythm and product yield.

Description

Technical Field

[0001] This application relates to the field of automation equipment technology, and in particular to a belt pulling device and packaging equipment. Background Technology

[0002] In automated packaging of electronic products, a protective film with attached pull tabs needs to be affixed to the surface of the mobile phone. When directly fastening the packaging box, the pull tabs are prone to warping and becoming uneven, affecting the appearance. To address this, the industry uses a pull strap to assist in flattening: first, the pull strap is placed over the surface of the pull tab, and after the box lid is pre-fastened, the pull strap is removed, keeping the pull tab flat and attached.

[0003] In related technologies, the laying, pressing, and removal of the belt are often done manually by operators. However, this manual method is inefficient, inconsistent, and difficult to match with automated production lines. Therefore, automated equipment that can automatically lay and retrieve the belt has emerged. This equipment can complete the laying and retrieval of the belt through mechanical devices. The feeding device can release the belt to flatten the pull tabs. After the upper box is pre-fastened, the feeding device rotates and pulls back the belt.

[0004] However, during the tape retraction process in automated equipment, the rotation of the feeding device can easily cause friction between the tape and mechanical parts. This can lead to static electricity, causing the tape to stick to the protective film or box, thus compromising the flattening effect. Furthermore, it can easily cause tape wrinkles. Both of these factors reduce the quality of the pull lugs and increase the rate of product defects. Utility Model Content

[0005] In view of the above, it is necessary to provide a pull strap device and packaging equipment that can improve the flattening quality of the protective film pull tabs and increase the packaging cycle time and product yield.

[0006] This application first provides a belt pulling device, including a feeding module and a clamping module. The feeding module includes a feeding turntable and multiple rollers. The feeding turntable is used to cooperate with the multiple rollers to supply belt to the clamping module, and at least one of the multiple rollers is configured to be movable to pull back the belt. The clamping module is used to clamp the belt and move along a first direction to pull the belt.

[0007] In the belt pulling device of this application, the traditional rotary mechanism is replaced by a pull-back design of movable rollers. In this device, at least one roller in the feeding module actively moves in the opposite direction to pull back, applying a physical pull-back force to the belt. Under this mechanical pull-back method, the friction caused by the rotation of the traditional feeding device can be reduced, and the process is smooth and controllable. This can significantly reduce the relative speed between the belt and the roller, thereby reducing the abnormalities of static electricity accumulation (adsorption risk) and mechanical wrinkles (belt twisting) from the root. This can fundamentally improve the flattening quality of the protective film pull lugs.

[0008] In some embodiments, the feeding module further includes a main body and a first guide rail. At least one of the feeding turntable, the first guide rail, and a plurality of rollers is disposed in the main body. The plurality of rollers includes a first fixed roller, a first movable roller, and a second fixed roller. The first fixed roller and the second fixed roller are disposed in the main body, and the first movable roller is movably disposed in the first guide rail. The material belt is guided by the rollers in the order of the first fixed roller, the first movable roller, and the second fixed roller.

[0009] In some embodiments, the feeding module further includes a second guide rail, and the plurality of rollers further include a second movable roller and a third fixed roller. The third fixed roller is disposed on the main body, and the second movable roller is movably disposed on the second guide rail. The order in which the material belt is guided by the rollers is the first fixed roller, the first movable roller, the second fixed roller, the second movable roller, and the third fixed roller.

[0010] In some embodiments, the feeding module further includes a first clamping component and a guide member, the guide member being used to guide the material belt from the third fixed wheel to a first direction, and the first clamping component being disposed in the main body and located between the third fixed wheel and the guide member.

[0011] In some embodiments, the feeding module further includes a second clamping component, and the plurality of rollers further include a fourth fixed roller and a fifth fixed roller. The fourth fixed roller and the fifth fixed roller are disposed on the main body, and the second clamping component is disposed on the main body and located between the fourth fixed roller and the fifth fixed roller. The order in which the material belt is guided by the rollers is the fourth fixed roller, the fifth fixed roller, the first fixed roller, the first moving roller, the second fixed roller, the second moving roller, and the third fixed roller.

[0012] In some embodiments, the pull strap device includes a base, and a main body portion is movably disposed on the base in a second direction, wherein the first direction is perpendicular to the second direction.

[0013] In some embodiments, the gripping module includes a base, grippers, and a slide rail. The slide rail is disposed on the base and extends along a first direction. The grippers are movably disposed on the slide rail and are used to grip the material strip and move along the first direction to pull the material strip.

[0014] In some embodiments, the pull strap device includes a base, and the base is movably disposed on the base in a second direction, wherein the first direction is perpendicular to the second direction.

[0015] In some embodiments, the gripping module further includes a cutting component disposed at the base, the cutting component being used to cut the strip.

[0016] This application also provides a packaging device, including a box-locking device and a pull strap device as described in any embodiment of this application. The box-locking device is used to load materials into an upper box and a lower box, and the pull strap device is used to assist the box-locking device in flattening the protective film of the materials located in the lower box by means of a material belt.

[0017] In the packaging equipment of this application, the coordinated operation of the tape pulling device and the box fastening device can realize the integration of flattening and box fastening. The tape pulling device is used to complete the flattening and retraction of the tape, while the box fastening device is used to perform the pre-fastening and final fastening of the box. In the pre-fastening stage of the box fastening device, the physical pressing of the tape can replace manual intervention, realizing fully automatic control of the flattening of the pull ears. Thus, through the precise coordination of mechanical flattening and box fastening actions, the errors of human-machine cooperation in traditional operations and the static electricity and deformation problems of the tape caused by traditional rotary mechanisms are fundamentally reduced, thereby improving the flattening quality of the protective film pull ears and increasing the packaging cycle time and product yield. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the pull belt device according to an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of a portion of the feeding device according to an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of some other parts of the feeding device according to an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the structure of some parts of the feeding device according to an embodiment of this application.

[0022] Figure 5 This is a schematic diagram of the structure of some other parts of the feeding module in an embodiment of this application.

[0023] Figure 6 This is a schematic diagram of the gripping module according to an embodiment of this application.

[0024] Figure 7 This is a schematic diagram of the packaging equipment according to an embodiment of this application.

[0025] Explanation of main component symbols 1. Belt pulling device; 11. Feeding module; 12. Clamping module; 111. Feeding turntable; 112. Roller; 113. Main body; 114. First guide rail; 115. Second guide rail; 116. First pressing assembly; 117. Guide component; 118. Second pressing assembly; 121. Base; 122. Gripper; 123. Slide rail; 124. Cutting assembly; 1121. First fixed wheel; 1122. First moving wheel; 1123. Second fixed wheel; 1124. Second moving wheel; 1125. Third fixed wheel; 1126. Fourth fixed wheel; 1127. Fifth fixed wheel; 2. Box fastening device; 3. Material belt; 100. Packaging equipment.

[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0027] In the description of the embodiments in this application, the words "exemplary," "or," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary," "or," and "for example" is intended to present the relevant concepts in a specific manner.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this application's specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. It should be understood that, unless otherwise stated, " / " in this application means "or". For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. "At least one" refers to one or more. "More than one" refers to two or more. For example, at least one of a, b, or c can represent: a, b, c, a and b, a and c, b and c, and a, b, and c (seven cases).

[0029] It should also be noted that the terms "first" and "second" in the specification, claims and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0030] In the automated packaging process of consumer electronics products, protective films are typically applied to the surfaces of products such as mobile phones to protect the screen or casing from scratches during transportation. These protective films are designed with pull tabs extending along the edges for easy removal by the user when unpacking. However, during the product placement and box-closing process, if the box lid is closed directly, the pull tabs are prone to warping or folding due to pressure, failing to adhere smoothly to the protective film surface, resulting in a messy appearance and affecting the product unpacking experience. To ensure that the pull tabs remain neatly pressed inside the box, the industry commonly uses pull straps as an auxiliary tool. This technology requires applying pressure by covering the pull tabs before closing the box, using physical constraint to force the pull tabs to adhere smoothly, followed by pre-closing the box body, and finally removing the pull straps to set the shape of the pull tabs.

[0031] Currently, there are two main methods for achieving pull-tape-assisted flattening: one is manual operation, where workers manually spread the pull-tape on the protective film's pull-ear area, press it down to complete the pre-fastening of the upper box, and then slowly pull the pull-tape away. The other is an automated equipment solution, which uses mechanical mechanisms to replace manual labor in laying and retrieving the pull-tape. The automated process typically includes the following steps: First, the electronic product with the protective film applied is positioned in the lower box; then, the feeding device releases the strip pull-tape, covering the pull-ear surface; the mechanical pressure block presses down to fix the pull-tape and pull-ear; next, the upper box is pre-fastened (at this time, the box is not fully locked); finally, the rotational movement of the feeding device pulls the pull-tape away from the gap in the box, and after shaping, the upper box is fully fastened.

[0032] However, in the aforementioned technologies, the repetitive laying and pulling of the pull straps in manual operation mode is labor-intensive, inefficient, and the consistency of the pull ear pressing quality is difficult to guarantee due to the influence of personnel skill level, making it difficult to meet the needs of high-speed automated production lines. While the aforementioned automatic pull strap equipment can improve efficiency, the pull strap retraction process relies on the reverse rotation of the feeding device. This mechanical movement easily leads to severe friction between the pull strap and the guide components. On the one hand, friction can easily induce electrostatic adsorption, causing the pull strap to accidentally stick to the protective film or the inner wall of the packaging box during extraction, damaging the flattened pull ear state. On the other hand, high-speed rotation can easily cause the flexible pull strap to twist or stack locally, producing uncontrollable wrinkles. These defects accumulate continuously in continuous operation, resulting in uneven pressing in a single operation, or even the wrinkled pull strap scraping the surface of the protective film, ultimately leading to an increased product appearance defect rate.

[0033] Therefore, this application provides a pull tab device and packaging equipment, which can improve the flattening quality of the protective film pull tabs and increase packaging cycle time and product yield. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Figure 1 This is a schematic diagram of the structure of the strap device 1 according to an embodiment of this application.

[0035] like Figure 1 As shown, the embodiments of this application first provide a pull belt device 1, which can be used in the product packaging process to assist in pressing the protective film and other parts of the product that need to be pressed, so as to improve the packaging quality. The pull belt device 1 may include a feeding module 11 and a clamping module 12. The feeding module 11 may include a feeding turntable 111 and a plurality of rollers 112. The feeding turntable 111 (also called a "feeder") can be used to cooperate with the plurality of rollers 112 to supply the material belt 3 to the clamping module 12, and at least one of the plurality of rollers 112 can be configured to be movable to pull back the material belt 3. The clamping module 12 is used to clamp the material belt 3 and move it along a first direction to pull the material belt 3.

[0036] The pull-back design of the movable roller 112 can replace the traditional rotary mechanism. In this mechanism, at least one roller 112 in the feeding module 11 actively moves in the opposite direction to pull back, applying a physical pull-back force to the material belt 3. Under this mechanical pull-back method, the friction caused by the rotation of the traditional feeding device can be reduced, and the process is smooth and controllable. It can significantly reduce the relative speed between the material belt 3 and the roller 112, thereby reducing the abnormalities of static electricity accumulation (adsorption risk) and mechanical wrinkles (twisting of the material belt 3) from the root. This can fundamentally improve the flattening quality of the protective film pull lugs.

[0037] Figure 2 This is a partial structural schematic diagram of the feeding device according to an embodiment of this application.

[0038] In some embodiments, such as Figure 2 As shown, the feeding module 11 also includes a main body 113 and a first guide rail 114. The feeding turntable 111, the first guide rail 114, and at least one of a plurality of rollers 112 are disposed in the main body 113. The plurality of rollers 112 include a first fixed roller 1121, a first movable roller 1122, and a second fixed roller 1123. The first fixed roller 1121 and the second fixed roller 1123 are disposed in the main body 113. The first movable roller 1122 is movably disposed in the first guide rail 114. The material belt 3 is guided by the rollers 112 in the following order: the first fixed roller 1121, the first movable roller 1122, and the second fixed roller 1123. In this case, the linear displacement of the first moving wheel 1122 on the guide rail can be used to control the path length of the material strip 3 to achieve precise pullback. When the material strip 3 needs to be pulled back, the first moving wheel 1122 moves away from the first fixed wheel 1121 and / or the second fixed wheel 1123 along the first guide rail 114, thereby lengthening the wrapping path of the material strip 3 between the rollers 112 and forming a uniform and controllable mechanical pullback tension. This can replace the traditional forced rotation mechanism. On the one hand, it can reduce the friction between the material strip 3 and the feeding turntable 111. On the other hand, it can improve the uniformity of the pullback force and effectively reduce the generation of wrinkles in the material strip 3, thereby affecting the quality of the subsequent pressing and pulling lugs.

[0039] In some embodiments, the first moving wheel 1122 may be driven by a motor to move on the first guide rail 114.

[0040] In some embodiments, the feed turntable 111 may be disposed on the main body 113 via a sliding bearing.

[0041] Figure 3 This is a schematic diagram of some other parts of the feeding device according to an embodiment of this application.

[0042] In some embodiments, such as Figure 3As shown, the feeding module 11 may also include a second guide rail 115, and the multiple rollers 112 may also include a second movable roller 1124 and a third fixed roller 1125. The third fixed roller 1125 is disposed on the main body 113, and the second movable roller 1124 is movably disposed on the second guide rail 115. The material belt 3 is guided by the rollers 112 in the following order: first fixed roller 1121, first movable roller 1122, second fixed roller 1123, second movable roller 1124 and third fixed roller 1125. In this case, by adding a second moving wheel 1124 to form a segmented adjustment, the control capability of the long-distance material belt 3 can be significantly enhanced. The two moving wheels (i.e., the first moving wheel 1122 and the second moving wheel 1124) can coordinate their movements on independent guide rails, which can meet the different pullback length requirements of the material belt 3, flexibly adjust the segmented tension of the material belt 3, and the dual moving wheel structure can effectively disperse stress concentration points, reduce local wrinkles caused by single-point pulling, and further improve the flatness of the material belt 3 pullback.

[0043] In some embodiments, the second moving wheel 1124 may be driven by a motor to move on the second guide rail 115.

[0044] Figure 4 This is a schematic diagram of the structure of some parts of the feeding device according to an embodiment of this application.

[0045] In some embodiments, such as Figure 4 As shown, the feeding module 11 may further include a first pressing component 116 and a guide component 117. The guide component 117 can be used to guide the material belt 3 from the third fixed wheel 1125 to the first direction. The first pressing component 116 can be disposed in the main body 113 and located between the third fixed wheel 1125 and the guide component 117. In this case, the first pressing component 116 can apply continuous pressure to the output end of the material belt 3. Before the material belt 3 enters the guide component 117 via the third fixed wheel 1125, the first pressing component 116 squeezes the material belt 3, forcibly eliminating the slight deformation and slack accumulated due to repeated pulling. At the same time, combined with the directional constraint of the guide component 117, it can be ensured that the material belt 3 always enters the clamping area in a taut state, thereby reducing the unevenness of the pressing caused by the deviation of the material belt 3. In addition, the first clamping component 116 can form dynamic damping at the front end of the guide 117. When the clamping module 12 releases the material strip 3, the first clamping component 116 prevents the material strip 3 from detaching from the guide 117 due to inertia by continuously applying controllable pressure. In the pull-back phase, it maintains the tension balance of the material strip 3 near the clamping module 12. That is, mechanical pressure can be used to counteract the elastic retraction force of the material strip 3, thereby reducing the loosening of the material strip 3 and ensuring the stability of the pull-back trajectory.

[0046] In some embodiments, the guide member 117 may have a guide hole or guide groove that matches the width of the strip 3. The guide hole or guide groove can be used to improve the guiding accuracy of the guide member 117 on the strip 3.

[0047] In some embodiments, the side of the guide 117 near the clamping module 12 may be in the shape of a concave or a pointed shape (such as a convex shape). When the concave or pointed guide 117 guides the material strip 3 to the clamping module 12 and extends out, it can facilitate the clamping module 12 to stably clamp the part of the material strip 3 that extends out of the guide 117 (such as the middle or both sides), thereby improving the stability of clamping.

[0048] In some embodiments, the first clamping assembly 116 can be clamped by a cylinder.

[0049] In some embodiments, the first clamping component 116 may be coated with an antistatic material, thereby reducing static electricity on the strip 3 and thus reducing the problem of abnormal adhesion pulls during pressing due to static electricity.

[0050] Figure 5 This is a schematic diagram of the structure of some other parts of the feeding module 11 in an embodiment of this application.

[0051] In some embodiments, such as Figure 5 As shown, the feeding module 11 also includes a second pressing component 118, and the multiple rollers 112 also include a fourth fixed roller 1126 and a fifth fixed roller 1127. The fourth fixed roller 1126 and the fifth fixed roller 1127 are disposed on the main body 113, and the second pressing component 118 is disposed on the main body 113 and located between the fourth fixed roller 1126 and the fifth fixed roller 1127. The material belt 3 is guided by the rollers 112 in the following order: fourth fixed roller 1126, fifth fixed roller 1127, first fixed roller 1121, first moving roller 1122, second fixed roller 1123, second moving roller 1124 and third fixed roller 1125. In this configuration, the second clamping component 118 can establish pretension at the input section of the material belt 3, forming a coordinated control with the first clamping component 116 at the end. The material belt 3 is first pre-tensioned and taut by the fourth fixed roller 1126, the fifth fixed roller 1127, and the second clamping component 118 before entering the path of the subsequent roller 112. The dual clamping zone design can achieve the state of "inlet tension + outlet tension" for the material belt 3, thereby effectively offsetting the tension fluctuations when the feeding turntable 111 releases material, ensuring the flatness of the material belt 3 throughout its entire length. Specifically, the second clamping component 118 added between the fourth and fifth fixed rollers can, on the one hand, prevent the material belt 3 from sliding into the feeding module 11 during pullback, and on the other hand, maintain the tension of the material belt 3 on the side of the feeding module 11 by continuous pressure, and can form a resistance point symmetrical with the first clamping component 116, so that the material belt 3 maintains a uniform tension state throughout its entire length.

[0052] In some embodiments, the second clamping assembly 118 can be clamped by a cylinder.

[0053] In some embodiments, the second clamping assembly 118 may also be coated with an antistatic material, thereby reducing the static electricity that the material strip 3 coming out of the feed turntable 111 may carry, and thus reducing the problem of abnormal adhesion of the ear during pressing due to static electricity.

[0054] In some embodiments, the pull belt device 1 may further include a base (not shown), and the main body 113 of the feeding module 11 is movably disposed on the base along a second direction. The first direction is perpendicular to the second direction. In this case, the vertical movement of the entire feeding module 11 can create an inclined angle for the material strip 3 before it is pressed onto the product. That is, when the main body 113 of the module rises and falls along the second direction, the height of the output end of the material strip 3 can change synchronously. This allows for adjustment of the contact angle between the material strip 3 and the protective film, making it more closely conform to the curvature of the product surface, effectively reducing edge lifting during the pressing process, and thus improving the flattening and bonding degree.

[0055] In some embodiments, a guide rail (not shown) may be provided between the main body 113 and the base. The main body 113 can be driven by a motor to move on the guide rail, and thus can move up and down relative to the base.

[0056] Figure 6 This is a schematic diagram of the structure of the clamping module 12 in an embodiment of this application.

[0057] In some embodiments, such as Figure 6 As shown, the gripping module 12 includes a base 121, a gripper 122, and a slide rail 123. The slide rail 123 is disposed on the base 121 and extends along a first direction. The gripper 122 is movably disposed on the slide rail 123. The gripper 122 is used to grip the material strip 3 and move it along the first direction to pull the material strip 3. In this case, the linear movement of the gripper 122 along the slide rail can ensure that the pulling path is precise and controllable. Specifically, after the gripper 122 grips the material strip 3, it can move strictly horizontally along the first direction, thereby reducing path deviations caused by manual operation or rotating mechanisms. The slide rail 123 constrains the gripper 122 to move only along the first direction, thereby reducing the skewing of the material strip 3 caused by lateral swaying. That is, through this kind of rigid guidance, the material strip 3 can always be laid along a preset straight trajectory and vertically cover the pull lug area, thereby reducing uneven pressing caused by angular deviation, and thus improving the final pressing and positioning accuracy.

[0058] In some embodiments, the gripper 122 may be driven by a cylinder to perform a gripping action. The gripper 122 may be driven by a motor to move on a guide rail, and thus may move relative to the base 121 in a first direction.

[0059] In some embodiments, the gripper 122 may be coated with an antistatic material, thereby reducing static electricity abnormalities caused by repeated gripping of the strip 3. Alternatively, the antistatic material may be a soft rubber, which can improve the stability of the gripper 122 in gripping the strip 3.

[0060] In some embodiments, the base 121 is movably disposed on the base along a second direction, with the first direction perpendicular to the second direction. In this case, the overall vertical movement of the gripping module 12 can optimize the working posture of the strip 3. That is, when the base 121 moves up and down along the second direction, the height of one end of the gripper 122 holding the strip 3 is adjustable to be linked with the lifting and lowering of the feeding module 11, forming a height difference between the two ends. This allows for the construction of an adaptive tilt plane, expanding the tilt angle adjustment range of the strip 3. Through the coordinated spatial positioning of the two modules, the strip 3 can flexibly form the optimal tilting and pressing posture according to the product thickness or the height of the pull tab, thereby ensuring uniform pressure across the entire pull tab area and further improving the flattening effect.

[0061] In some embodiments, a guide rail (not shown) may be provided between the base 121 and the base, and the base 121 may be driven by a motor to move on the guide rail, thereby moving up and down relative to the base.

[0062] In some embodiments, such as Figure 6 As shown, the clamping module 12 may also include a cutting component 124, which is disposed at the base 121 and can be close to the guide member 117. The cutting component 124 is used to cut the material strip 3. In this case, the cutting component 124 can be used to realize the rapid segmented replacement of the worn material strip 3. When the material strip 3 is damaged due to repeated use, the cutting component 124 can directly cut the old material strip 3 near the guide member 117, avoiding the disassembly of the entire feeding module 11 and realizing the direct connection between the new and old material strips 3. This can significantly shorten the maintenance time and ensure the performance consistency of the replaced material strip 3.

[0063] In some embodiments, the cutting component 124 may be driven by a cylinder to perform the cutting action.

[0064] Figure 7 This is a schematic diagram of the structure of the packaging equipment 100 according to an embodiment of this application.

[0065] like Figure 7As shown, this application also provides a packaging device 100, which may include a box-locking device 2 and a pull-belt device 1 as described in any of the above embodiments of this application. The box-locking device 2 can be used to load materials into upper and lower boxes, and the pull-belt device 1 can be used to assist the box-locking device 2 in flattening the protective film of the material located in the box through the material belt 3. In this case, the coordinated operation of the pull-belt device 1 and the box-locking device 2 can achieve integrated flattening and box-locking. The pull-belt device 1 is used to complete the flattening and retraction action of the material belt 3, and the box-locking device 2 is used for pre-locking and final locking of the box. In the pre-locking stage of the box-locking device 2, the physical pressing of the material belt 3 can replace manual intervention, achieving fully automatic control of the flattening of the pull ears. Thus, through the precise coordination of mechanical flattening and box-locking actions, the errors in human-machine cooperation in traditional operations and the static electricity and deformation problems of the material belt 3 caused by traditional rotary mechanisms are fundamentally reduced, thereby improving the flattening quality of the protective film pull ears and increasing the packaging cycle time and product yield.

[0066] To further illustrate the improvements of the packaging equipment 100 according to the embodiments of this application, the working process of the packaging equipment 100 is provided below. Specifically: The box-locking device 2 places the material in the lower box. The pull belt device 1 clamps the material belt 3 through the clamping module 12 and spans across the material. The clamping module 12 or the feeding module 11 of the pull belt device 1 moves up and down to tilt the material belt 3 at a predetermined angle to match the height or inclination of the protective film pull ear of the material. Both the clamping module 12 and the feeding module 11 of the pull belt device 1 move down to press the material belt 3 against the protective film pull ear. The box-locking device 2 then pre-locks the upper box (also called the "upper cover") onto the lower box (i.e., in a non-fully locked state). The clamping module 12 of the pull belt device 1 releases the material belt 3 and the feeding module 11 pulls the material belt 3 back out of the pre-locked upper and lower boxes through the moving roller 112.

[0067] By repeating the above process, multiple materials can be packaged in an assembly line.

[0068] In some embodiments, after the strip 3 has been used a predetermined number of times, the cutting component 124 can be controlled to cut the strip 3 before it is retracted, and the cut strip 3 can fall directly into the recycling box below it. This allows a new strip 3 to be used for the lamination operation, reducing the impact of wrinkles on the lamination quality.

[0069] In some embodiments, on a packaging machine 100, multiple fastening devices 2 can be correspondingly arranged with the same number of pull strap devices 1. For example, fastening device 2a corresponds to pull strap device 1a, fastening device 2b corresponds to pull strap device 1b, and the pull direction of pull strap device 1a is the same as that of pull strap device 1b. This can improve work efficiency.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A strap pulling device, characterized in that, The device includes a feeding module and a clamping module. The feeding module includes a feeding turntable and multiple rollers. The feeding turntable is used to supply a material strip to the clamping module in cooperation with the multiple rollers. At least one of the multiple rollers is configured to be movable to pull back the material strip. The clamping module is used to clamp the material strip and move it along a first direction to pull the material strip.

2. The belt-pulling device according to claim 1, characterized in that, The feeding module further includes a main body and a first guide rail. The feeding turntable, the first guide rail, and at least one of the plurality of rollers are disposed in the main body. The plurality of rollers include a first fixed roller, a first movable roller, and a second fixed roller. The first fixed roller and the second fixed roller are disposed in the main body, and the first movable roller is movably disposed in the first guide rail. The material belt is guided by the rollers in the order of the first fixed roller, the first movable roller, and the second fixed roller.

3. The belt-pulling device according to claim 2, characterized in that, The feeding module further includes a second guide rail, and the plurality of rollers further include a second movable roller and a third fixed roller. The third fixed roller is disposed on the main body, and the second movable roller is movably disposed on the second guide rail. The material belt is guided by the rollers in the following order: the first fixed roller, the first movable roller, the second fixed roller, the second movable roller, and the third fixed roller.

4. The belt-pulling device according to claim 3, characterized in that, The feeding module further includes a first pressing component and a guide component. The guide component is used to guide the material belt from the third fixed wheel to the first direction. The first pressing component is disposed on the main body and located between the third fixed wheel and the guide component.

5. The belt-pulling device according to claim 3, characterized in that, The feeding module further includes a second pressing component, and the plurality of rollers further include a fourth fixed roller and a fifth fixed roller. The fourth fixed roller and the fifth fixed roller are disposed on the main body. The second pressing component is disposed on the main body and located between the fourth fixed roller and the fifth fixed roller. The material belt is guided by the rollers in the following order: the fourth fixed roller, the fifth fixed roller, the first fixed roller, the first moving roller, the second fixed roller, the second moving roller, and the third fixed roller.

6. The belt-pulling device according to claim 4, characterized in that, The belt-pulling device includes a base, and the main body is movably disposed on the base along a second direction, wherein the first direction is perpendicular to the second direction.

7. The belt-pulling device according to claim 1, characterized in that, The gripping module includes a base, grippers, and a slide rail. The slide rail is disposed on the base and extends along the first direction. The grippers are movably disposed on the slide rail. The grippers are used to grip the material strip and move along the first direction to pull the material strip.

8. The belt-pulling device according to claim 7, characterized in that, The belt pulling device includes a base, and the base portion is movably disposed on the base in a second direction, wherein the first direction is perpendicular to the second direction.

9. The belt-pulling device according to claim 7, characterized in that, The clamping module further includes a cutting component disposed at the base, the cutting component being used to cut the strip.

10. A packaging equipment, characterized in that, The device includes a snap-fit ​​device and a pull strap device as described in any one of claims 1 to 9, wherein the snap-fit ​​device is used to load material into an upper box and a lower box, and the pull strap device is used to assist the snap-fit ​​device in flattening the protective film of the material located in the lower box via a material belt.

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