Belt folding device of knotting machine and knotting machine

Abstract

The utility model relates to the technical field of knotting machines, and discloses a belt folding device of a knotting machine and the knotting machine, and the belt folding device comprises a feeding mechanism which provides a material belt to a feeding position along a first direction; the material pulling mechanism is arranged at the downstream of the material supply position, and the material pulling mechanism stretches the material belt at the material supply position in the first direction and sequentially penetrates through the material cutting position and the folding position; the cut-off mechanism is arranged on one side of the material cutting position, the cut-off mechanism is configured to cut the material belt at the material cutting position so as to obtain a to-be-folded belt penetrating through the material cutting position, and the to-be-folded belt comprises a first section, a second section and a third section which are connected in sequence; the folding mechanism comprises a bearing table arranged at the folding position, a first belt folding assembly and a second belt folding assembly which are located on the two sides of the bearing table, and a belt pressing assembly located on one side of the bearing table, the belt pressing assembly is configured to press the second section on the bearing table, and the first belt folding assembly is configured to fold the first section towards the second section; the second belt folding assembly is configured to fold the third section towards the second section, and belt folding can be conducted through an automatic process.

Description

Technical Field

[0001] The utility model relates to the technical field of knotting machines, in particular to a belt folding device of a knotting machine and the knotting machine. Background Art

[0002] A knotting machine is an automated device that uses mechanical (or pneumatic) principles to automatically complete specific knotting actions (such as connecting yarns, tying bales, and sealing bags).

[0003] There are many kinds of knotting machines in related technologies, which effectively improve the processing efficiency. Figure 1 As shown, a folded belt that needs to be knotted during the knotting process, the belt to be folded 10 includes a first section 11, a second section 12 and a third section 13 connected in sequence, with the second section 12 as the middle section, and the first section 11 and the third section 13 both need to be folded in half toward the top of the second section 12, and then formed. Figure 1 However, in the related art, there is a lack of corresponding belt folding devices, so the automation level is low and the working efficiency is low.

[0004] Therefore, there is an urgent need to provide a belt folding device for a knotting machine and a knotting machine that can achieve belt folding through an automated process. Utility Model Content

[0005] Based on this, it is necessary to provide a belt folding device and a knotting machine for the existing problems, which can realize belt folding through an automated process.

[0006] A first aspect of the present application provides a belt folding device for a knotting machine, comprising:

[0007] a feeding mechanism configured to feed the material strip to a feeding position along a first direction;

[0008] a material pulling mechanism, disposed downstream of the material feeding position, configured to stretch the material strip at the material feeding position along the first direction and sequentially pass through the material cutting position and the folding position;

[0009] a cutting mechanism disposed on one side of the cutting position, the cutting mechanism being configured to cut the material strip at the cutting position to obtain a strip to be folded that passes through the cutting position, the strip to be folded comprising a first section, a second section, and a third section that are sequentially connected;

[0010] The folding mechanism includes a supporting platform arranged at the folding position, a first folding belt assembly and a second folding belt assembly located on both sides of the supporting platform, and a pressing belt assembly located on one side of the supporting platform, the pressing belt assembly is configured to press the second section onto the supporting platform, the first folding belt assembly is configured to fold the first section toward the second section, and the second folding belt assembly is configured to fold the third section toward the second section.

[0011] In some embodiments, the feeding mechanism comprises:

[0012] a feed reel configured to draw out a material strip;

[0013] A lifting and pulling roller assembly includes a support frame and a lifting roller arranged downstream of the feed reel, the support frame is provided with a slide extending in a vertical direction, the lifting roller is arranged on the slide so as to be able to rise and fall and slide, and the lifting roller is configured to tighten the material strip led out of the feed reel;

[0014] a tensioning roller assembly, comprising at least one roller disposed downstream of the lifting roller, the roller being configured to tension the material strip led out of the lifting roller and guide the material strip along the first direction;

[0015] a first clamping jaw assembly, disposed downstream of the tensioning roller assembly, wherein the first clamping jaw assembly is configured to selectively clamp a passing material strip;

[0016] a deflection correction assembly, disposed downstream of the first clamping jaw assembly, the deflection correction assembly having a deflection correction channel extending along the first direction, the deflection correction channel being configured for a feed belt to pass through;

[0017] The second clamping jaw assembly is arranged downstream of the deviation correcting assembly and upstream of the feeding position, and the second clamping jaw assembly is configured to selectively clamp the passing material strip.

[0018] In some embodiments, the pulling mechanism includes:

[0019] a first linear drive member;

[0020] The third clamping jaw assembly is arranged at the output end of the first linear drive member, and the third clamping jaw assembly is configured to clamp the material strip at the feeding position. The first linear drive member is configured to drive the third clamping jaw assembly to move along the first direction to stretch the material strip along the first direction and pass through the cutting position and the folding position in sequence.

[0021] In some embodiments, the cutting mechanism comprises:

[0022] A first slide rail extending along the first direction;

[0023] a first sliding block, slidably plugged into the first sliding rail;

[0024] a cylindrical drum rotatably disposed on the first slider, wherein the rotating axis of the cylindrical drum extends in a horizontal direction perpendicular to the first direction, and a hob portion is convexly provided on a side wall of the cylindrical drum;

[0025] a push-pull driving source, an output end of which is connected to the first slider, the push-pull driving source being configured to drive the first slider to reciprocate along the first direction;

[0026] a first gear rotatably disposed on the first slider, the first gear being coaxially fixedly connected to the cylindrical drum;

[0027] a second gear rotatably disposed on the first slider, the second gear meshing with the first gear;

[0028] a rack extending along the first direction and fixed relative to the first slide rail, the rack meshing with the second gear for transmission;

[0029] Cut off the lifting drive;

[0030] The cutting pressure head is arranged at the output end of the cutting lifting drive, and the cutting pressure head is located above the cutting position. The cutting lifting drive is configured to drive the cutting pressure head to press down and cooperate with the hob part to squeeze and cut the material strip passing through the cutting position. The cutting lifting drive is also configured to drive the cutting pressure head to rise to an avoidance position to avoid the pulling mechanism.

[0031] In some embodiments, the first folding belt assembly includes a first push-pull power source and a first folding plate, wherein the first folding plate is disposed at an output end of the first push-pull power source, and the first push-pull power source is configured to drive the first folding plate to move back and forth between a first folding position and a first restoring position, wherein the first folding plate moves from the first restoring position to the first folding position so that the first section is folded toward the second section, and the first folding plate avoids the supporting platform in the first restoring position;

[0032] The second folding belt assembly includes a second push-pull power source and a second folding plate. The second folding plate is arranged at the output end of the second push-pull power source. The second push-pull power source is configured to drive the second folding plate to move back and forth between a second folding position and a second restoring position. When the pulling mechanism stretches the material belt through the folding position, the first folding plate, the second folding plate and the supporting platform are configured to jointly support the belt to be folded passing through the folding position. The second folding plate moves from the second restoring position to the second folding position so that the third section is folded toward the second section. The second folding plate avoids the supporting platform in the second restoring position.

[0033] The belt pressing assembly includes a rotation driving source arranged on one side of the supporting platform, a belt pressing clamp arranged at the output end of the rotation driving source, a first pressure plate arranged on the first finger portion of the belt pressing clamp, and a second pressure plate arranged on the second finger portion of the belt pressing clamp, the second pressure plate being side by side with the first pressure plate, the belt pressing clamp being configured to drive the first pressure plate and the second pressure plate to perform opening and closing movements, the rotation driving source being configured to drive the belt pressing clamp by rotation so that the first pressure plate and the second pressure plate can reciprocate between a first position and a second position, the first position being located directly above the supporting platform, and the second position being located on one side of the supporting platform to avoid the supporting platform.

[0034] In some embodiments, the folding device of the knotting machine further comprises:

[0035] A carrier plate, on which the first folding belt assembly, the second folding belt assembly, and the carrying platform are respectively arranged;

[0036] A lifting drive source, wherein the carrier plate is arranged at an output end of the lifting drive source, and the lifting drive source is configured to perform lifting motion along a vertical direction perpendicular to the first direction.

[0037] In some embodiments, the carrying surface of the carrying platform is provided with an accommodating groove, and the first pressing plate and the second pressing plate are configured to press the second section tightly against the accommodating groove;

[0038] The belt folding device of the knotting machine also includes a second slide rail extending along a second direction intersecting with the first direction, a second slider plugged into the second slide rail, a third slide rail extending along the second direction, and a third slider plugged into the third slide rail. The first folding plate is fixed to the second slider, and the second folding plate is fixed to the third slider.

[0039] In some embodiments, the folding device of the knotting machine further comprises:

[0040] The hot pressing mechanism is arranged on one side of the folding position, and is configured to perform hot pressing treatment on the folded belt at the folding position.

[0041] In some embodiments, the heat pressing mechanism comprises:

[0042] Thermal pressure driving source;

[0043] a hot pressing head, arranged at an output end of the hot pressing driving source, the hot pressing driving source being configured to drive the hot pressing head to move up and down between a hot pressing position and an avoidance position, wherein the hot pressing head heats the folded ribbon at the folding position at the hot pressing position, and the hot pressing head avoids the pulling mechanism and the folding mechanism at the avoidance position;

[0044] Positioning drive source;

[0045] A positioning plate is arranged at the output end of the positioning drive source, and the positioning drive source is configured to drive the positioning plate to move up and down between a pressing position and a releasing position. The positioning plate presses the folding belt at the folding position at the pressing position, and the positioning plate avoids the pulling mechanism and the folding mechanism at the releasing position.

[0046] A second aspect of the present application provides a knotting machine, which includes the knotting machine's belt folding device described in any one of the above embodiments.

[0047] Beneficial effects of the utility model:

[0048] The tape folding device of the knotting machine of the present invention provides the material tape to the feeding position along the first direction through the feeding mechanism; the material tape at the feeding position is stretched along the first direction and passes through the cutting position and the folding position in sequence through the pulling mechanism; the material tape at the cutting position is cut by the cutting mechanism to obtain the tape to be folded that passes through the cutting position, and the tape to be folded includes a first section, a second section, and a third section that are connected in sequence; the second section is pressed tightly on the supporting platform of the folding mechanism by the tape pressing component of the folding mechanism, the first section is folded toward the second section by the first folding component of the folding mechanism, and the third section is folded toward the second section by the second folding component of the folding mechanism, thereby automatically realizing the feeding, pulling, cutting, and folding processes, which is conducive to replacing manpower and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0050] Figure 1 is a schematic diagram of a belt to be folded into a folded belt;

[0051] Figure 2 A three-dimensional diagram of a belt folding device of a knotting machine provided in an embodiment of the present application;

[0052] Figure 3 A three-dimensional diagram of the belt folding device of the knotting machine provided in the embodiment of the present application without the heat pressing mechanism;

[0053] Figure 4 A three-dimensional schematic diagram of a feeding mechanism and a pulling mechanism provided in an embodiment of the present application;

[0054] Figure 5 A three-dimensional diagram of a cutting mechanism provided in an embodiment of the present application;

[0055] Figure 6 A three-dimensional schematic diagram of the coordination relationship among the carrier platform, the first folding belt assembly, the second folding belt assembly, the carrier plate, and the lifting drive source provided in an embodiment of the present application;

[0056] Figure 7 A three-dimensional schematic diagram of a belt to be folded being carried on the folding position of the folding mechanism provided in an embodiment of the present application;

[0057] Figure 8 A perspective schematic diagram of a belt pressing assembly provided in an embodiment of the present application;

[0058] Figure 9 A perspective schematic diagram of a belt pressing assembly with a folded belt provided in an embodiment of the present application;

[0059] Figure 10 A three-dimensional schematic diagram of the hot pressing mechanism provided in an embodiment of the present application.

[0060] Reference numerals:

[0061] X, first direction; Y, second direction; Z, vertical direction;

[0062] 1. Material strip; 10. Strip to be folded; 11. First section; 12. Second section; 13. Third section;

[0063] 100, feeding mechanism; 110, feeding reel; 111, driving motor; 112, cylinder; 120, lifting and pulling roller assembly; 121, supporting frame; 1210, cylindrical rod; 1211, slideway; 122, lifting roller; 1220, annular groove; 1221, tensioning annular groove; 130, tensioning roller assembly; 131, roller; 140, first clamping jaw assembly; 150, deviation correction assembly; 151, deviation correction channel; 160, second clamping jaw assembly;

[0064] 200, material pulling mechanism; 210, first linear drive member; 220, third clamping jaw assembly;

[0065] 300, cutting mechanism; 310, first slide rail; 320, first slider; 330, cylindrical roller; 331, hob; 340, push-pull drive source; 350, first gear; 360, second gear; 370, rack; 380, cutting lift drive; 390, cutting pressure head;

[0066] 400, folding mechanism; 410, carrying platform; 411, accommodating groove; 420, first folding belt assembly; 421, first push-pull power source; 422, first folding plate; 423, second slide rail; 424, second slider; 430, second folding belt assembly; 431, second push-pull power source; 432, second folding plate; 433, third slide rail; 434, third slider; 440, belt pressing assembly; 441, rotation drive source; 442, belt pressing gripper; 443, first pressing plate; 444, second pressing plate; 450, carrier plate; 460, lifting drive source;

[0067] 500, hot pressing mechanism; 510, hot pressing driving source; 520, hot pressing head; 530, positioning driving source; 540, positioning plate. DETAILED DESCRIPTION

[0068] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0069] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0071] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0072] In the present invention, unless otherwise expressly specified or limited, a feature "above" or "below" a second feature may be in direct contact with the second feature, or in indirect contact with the second feature through an intermediary. Furthermore, "above," "above," and "above" a feature may mean that the feature is directly above or diagonally above the second feature, or simply means that the feature is at a higher level than the second feature. "below," "below," and "below" a feature may mean that the feature is directly below or diagonally below the second feature, or simply means that the feature is at a lower level than the second feature.

[0073] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0074] refer to Figures 1-10The embodiment of the present application provides a tape folding device for a knotting machine, which includes a feeding mechanism 100, a pulling mechanism 200, a cutting mechanism 300, and a folding mechanism 400. The feeding mechanism 100 is configured to provide a material tape 1 to a feeding position along a first direction X; the pulling mechanism 200 is arranged downstream of the feeding position, and the pulling mechanism 200 is configured to stretch the material tape 1 at the feeding position along the first direction X and pass it through the cutting position and the folding position in sequence; the cutting mechanism 300 is arranged on one side of the cutting position, and the cutting mechanism 300 is configured to cut the material tape 1 at the cutting position to obtain a tape 10 to be folded that passes through the cutting position, and the tape 10 to be folded includes a first section 11, a second section 12, The third section 13; the folding mechanism 400 includes a supporting platform 410 arranged at the folding position, a first folding belt assembly 420 and a second folding belt assembly 430 located on both sides of the supporting platform 410, and a pressing belt assembly 440 located on one side of the supporting platform 410, the pressing belt assembly 440 is configured to press the second section 12 onto the supporting platform 410, the first folding belt assembly 420 is configured to fold the first section 11 toward the second section 12, and the second folding belt assembly 430 is configured to fold the third section 13 toward the second section 12. The feeding mechanism 100 provides the material strip 1 to the feeding position along the first direction X; the pulling mechanism 200 stretches the material strip 1 at the feeding position along the first direction X and passes through the cutting position and the folding position in sequence; the cutting mechanism 300 cuts the material strip 1 at the cutting position to obtain a strip 10 to be folded that passes through the cutting position, and the strip 10 to be folded includes a first section 11, a second section 12, and a third section 13 connected in sequence; the pressing assembly 440 of the folding mechanism 400 presses the second section 12 onto the supporting platform 410 of the folding mechanism 400, the first section 11 is folded toward the second section 12 by the first folding assembly 420 of the folding mechanism 400, and the third section 13 is folded toward the second section 12 by the second folding assembly 430 of the folding mechanism 400, thereby automatically realizing the feeding, pulling, cutting, and folding processes, which is beneficial to replacing manpower and improving processing efficiency.

[0075] For the specific implementation structure of the feeding mechanism 100. In some embodiments, refer to Figures 1-10The feeding mechanism 100 includes a feeding reel 110, a lifting and drawing roller assembly 120, a tensioning roller assembly 130, a first clamping jaw assembly 140, a correction assembly 150, and a second clamping jaw assembly 160. The feeding reel 110 is configured to lead out the material belt 1; specifically, the feeding reel 110 includes a driving motor 111 and a cylinder 112 connected to the driving motor 111, the material belt 1 is wound on the cylinder 112, and the driving motor 111 controls the unwinding start and stop actions of the cylinder 112; the lifting and drawing roller assembly 120 includes a support frame 121 and a lifting roller 122 arranged downstream of the feeding reel 110, the support frame 121 is provided with a slide 1211 extending along the vertical direction Z; the lifting roller 122 is arranged on the slide and can be lifted and slid. The lifting roller 122 is configured to tighten the material strip 1 led out from the feeding reel 110; for example, two cylindrical rods 1210 extending in the vertical direction Z are provided on the side of the support frame 121, and a slideway 1211 extending in the vertical direction Z is formed between the two cylindrical rods 1210. An annular groove 1220 is provided on the side wall of the lifting roller 122, and the two cylindrical rods 1210 pass through the annular groove 1220 to clamp the lifting roller 122 between the two cylindrical rods 1210 and allow it to slide up and down along the slideway 1211; this In addition, the side wall of the lifting roller 122 is also provided with a tensioning annular groove 1221, and the material strip 1 passes around the tensioning annular groove 1221; the lifting roller 122 presses the bypassed material strip 1 downward by its own gravity to achieve tensioning of the material strip 1, and adjusts the length of the material strip 1 pulled out from the feeding reel 110 by the upward and downward movement of the lifting roller 122; the tensioning roller assembly 130 includes at least one roller 131 arranged downstream of the lifting roller 122, and the roller 131 is configured to tension the material strip 1 drawn out from the lifting roller 122 and guide the material strip 1 along the first direction X. Belt 1; the first clamping jaw assembly 140 is arranged downstream of the tensioning roller assembly 130, and the first clamping jaw assembly 140 is configured to selectively clamp the passing material belt 1; the correcting assembly 150 is arranged downstream of the first clamping jaw assembly 140, and the correcting jaw assembly 150 has a correcting channel 151 extending along the first direction X, and the correcting channel 151 is configured to feed the material belt 1 through; the second clamping jaw assembly 160 is arranged downstream of the correcting jaw assembly 150 and upstream of the feeding position, and the second clamping jaw assembly 160 is configured to selectively clamp the passing material belt 1.

[0076] In some embodiments, an upper limit sensor for rising and a lower limit sensor for falling may be installed on the support frame 121 to detect the rising and falling movement positions of the lifting roller 122 through the upper limit sensor for rising and the lower limit sensor for falling.

[0077] Specifically, refer to Figures 1-10 The correcting assembly 150 may include an upper pressing block and a lower pressing block, the upper pressing block is pressed on the lower pressing block, and a correcting channel 151 is formed between the upper pressing block and the lower pressing block. The correcting channel 151 may be a through hole extending along the first direction X.

[0078] refer to Figures 1-10 When the feeding mechanism 100 is feeding, the lifting roller 122 of the lifting and pulling roller assembly 120 can be used to pull the material in sections. Specifically, for example, when there is not much material strip 1 stored between the feeding reel 110, the lifting roller 122, and the roller 131, the lifting roller 122 is lifted up by the tension of the material strip 1 and is located above the slide 1211 (for example, the lifting roller 122 can be sensed to reach this position by the upper limit sensor); in order to increase the length of the material strip 1 stored between the feeding reel 110, the lifting roller 122, and the roller 131, the first clamping jaw assembly 140 is used to clamp the material strip 1, and then the feeding reel 110 is fed out, and then the lifting roller 122 is moved downward under the action of gravity, and then the lifting roller 122 is lifted up. 122 tensions the material strip 1 and pulls out the material strip 1 wound on the feeding reel 110 to form a newly stored section of material strip 1. Then, during this process, the lifting roller 122 continues to descend until it descends to a certain position (for example, the lifting roller 122 can be sensed to reach this position by the lower limit sensor). Then, the feeding reel 110 can stop feeding the material out, the first clamping jaw assembly 140 is released, and the second clamping jaw assembly 160 is also released. Then, the pulling mechanism 200 clamps the material strip 1 at the feeding position and stretches the material strip 1 so that the material strip 1 passes through the cutting position and the folding position in turn, and so on.

[0079] For the specific implementation structure of the pulling mechanism 200. Figures 1-10 In some embodiments, the material pulling mechanism 200 includes a first linear drive 210 and a third gripper assembly 220. The third gripper assembly 220 is disposed at the output end of the first linear drive 210 and is configured to clamp the material strip 1 at the feeding position. The first linear drive 210 is configured to drive the third gripper assembly 220 to move along a first direction X, thereby pulling the material strip 1 along the first direction X and sequentially passing through the cutting position and the folding position. The first linear drive 210 may be a linear cylinder, and the third gripper assembly 220 may be a pneumatic finger gripper.

[0080] For the specific implementation structure of the cutting mechanism 300. In some embodiments, refer to Figures 1-10The cutting mechanism 300 includes a first slide rail 310, a first slider 320, a cylindrical roller 330, a push-pull drive source 340, a first gear 350, a second gear 360, a rack 370, a cutting lifting driver 380, and a cutting pressure head 390. The first slide rail 310 is extended along the first direction X; the first slider 320 is slidably inserted into the first slide rail 310; the cylindrical roller 330 is rotatably arranged on the first slider 320, and the rotating shaft of the cylindrical roller 330 extends in a horizontal direction perpendicular to the first direction X. The side wall of the cylindrical roller 330 is protruding with a hob portion 331; the output end of the push-pull drive source 340 is connected to the first slider 320, and the push-pull drive source 340 is configured to drive the first slider 320 to reciprocate along the first direction X; the first gear 350 is rotatably arranged on the first slider 320, and the first gear 350 is coaxially fixedly connected to the cylindrical roller 330; the second gear 3 60 is rotatably mounted on the first slider 320, and the second gear 360 meshes with the first gear 350. The rack 370 extends along the first direction X and is fixed relative to the first slide rail 310. The rack 370 meshes with the second gear 360 for transmission. The cutting head 390 is disposed at the output end of the cutting lift driver 380. The cutting head 390 is located above the cutting position. The cutting lift driver 380 is configured to drive the cutting head 390 downward and cooperate with the hob 331 to squeeze and cut the material strip 1 passing through the cutting position. The cutting lift driver 380 is also configured to drive the cutting head 390 upward to a clearance position to avoid the pulling mechanism 200. The push-pull drive source 340 and the cutting lift driver 380 can each be a linear cylinder.

[0081] For the specific implementation structure of the first folding belt assembly 420, the second folding belt assembly 430 and the pressing belt assembly 440. In some embodiments, refer to Figures 1-10The first folding belt assembly 420 includes a first push-pull power source 421 and a first folding plate 422. The first folding plate 422 is provided at the output end of the first push-pull power source 421. The first push-pull power source 421 is configured to drive the first folding plate 422 to move back and forth between the first folding position and the first restoring position. The first folding plate 422 moves from the first restoring position to the first folding position so that the first section 11 is folded toward the second section 12. The first folding plate 422 avoids the supporting platform 410 in the first restoring position. The folding belt assembly 430 includes a second push-pull power source 431 and a second folding plate 432. The second folding plate 432 is arranged at the output end of the second push-pull power source 431. The second push-pull power source 431 is configured to drive the second folding plate 432 to move back and forth between the second folding position and the second restoring position. When the pulling mechanism 200 stretches the material belt 1 through the folding position, the first folding plate 422, the second folding plate 432, and the supporting platform 410 are configured to jointly support the belt to be folded 10 passing through the folding position. The second folding plate 432 moves from the second recovery position to the second folding position, so that the third section 13 is folded toward the second section 12, and the second folding plate 432 avoids the carrier 410 in the second recovery position; the belt pressing assembly 440 includes a rotation driving source 441 provided on one side of the carrier 410, a belt pressing clamping hand 442 provided at the output end of the rotation driving source 441, a first pressing plate 443 provided on the first finger portion of the belt pressing clamping hand 442, and a second pressing plate 444 provided on the second finger portion of the belt pressing clamping hand 442. The pressure plate 444 and the second pressure plate 444 are arranged side by side with the first pressure plate 443. The belt pressing gripper 442 is configured to drive the first pressure plate 443 and the second pressure plate 444 to open and close. The rotary drive source 441 is configured to drive the belt pressing gripper 442 by rotation to cause the first pressure plate 443 and the second pressure plate 444 to reciprocate between a first position and a second position. The first position is directly above the support platform 410, and the second position is to the side of the support platform 410 to avoid the support platform 410. The first push-pull power source 421 and the second push-pull power source 431 can each be a linear cylinder. The rotary drive source 441 can be a rotary cylinder.

[0082] Specifically, refer to Figure 8-Figure 9 The output end of the rotary drive source 441 can be connected to an adapter plate (not numbered in the figure), on which a belt pressing gripper 442 can be mounted. Furthermore, a telescopic cylinder (not numbered in the figure) and a guide rail (not numbered in the figure) can be mounted on the adapter plate. A sliding block (not numbered in the figure) is inserted into the guide rail. The telescopic cylinder is connected to the sliding block, and the belt pressing gripper 442 is fixed to the sliding block. The belt pressing gripper 442 can then perform telescopic movement in a horizontal plane to facilitate belt pressing.

[0083] In addition, reference Figures 1-10In some embodiments, the belt folding device of the knotting machine further includes a carrier plate 450 and a lifting drive source 460. The first belt folding assembly 420, the second belt folding assembly 430, and the carrier 410 are respectively disposed on the carrier plate 450; the carrier plate 450 is disposed at the output end of the lifting drive source 460, and the lifting drive source 460 is configured to perform lifting motion along a vertical direction Z perpendicular to the first direction X. The lifting drive source 460 can be a linear cylinder.

[0084] Further, in some embodiments, reference Figures 1-10 The carrying surface of the carrying platform 410 is provided with an accommodating groove 411 , and the first pressing plate 443 and the second pressing plate 444 are configured to press the second section 12 tightly against the accommodating groove 411 .

[0085] Further, refer to Figures 1-10 In some embodiments, the belt folding device of the knotting machine further includes a second slide rail 423 extending along a second direction Y intersecting the first direction X, a second slider 424 plugged into the second slide rail 423, a third slide rail 433 extending along the second direction Y, and a third slider 434 plugged into the third slide rail 433. The first folding plate 422 is fixed to the second slider 424, and the second folding plate 432 is fixed to the third slider 434. The angle between the second direction Y and the first direction X can be an acute angle such as 5°, 15°, or 30°.

[0086] refer to Figure 2-Figure 3 , Figure 6-Figure 9 When the pulling mechanism 200 stretches the material strip 1 through the folding position, the first folding plate 422, the second folding plate 432, and the supporting platform 410 are configured to jointly support the belt to be folded 10 passing through the folding position; the rotary drive source 441 drives the belt pressing clamp 442 to rotate, and the first pressing plate 443 and the second pressing plate 444 rotate from the second position and stop at the first position, and the first position is located directly above the supporting platform 410 and above the belt to be folded 10; then, the lifting drive source 460 performs an upward movement in the vertical direction Z perpendicular to the first direction X, thereby driving the supporting platform 410 to rise; then, the second ... A pressing plate 443 and a second pressing plate 444 are opened, so that the first pressing plate 443 and the second pressing plate 444 coordinate with the supporting platform 410 to clamp the second section 12 of the belt 10 to be folded in the receiving groove 411; then, the first push-pull power source 421 drives the first folding plate 422, and the first folding plate 422 moves from the first recovery position to the first folding position, so that the first section 11 is folded in half toward the second section 12; the second push-pull power source 431 drives the second folding plate 432, and the second folding plate 432 moves from the second recovery position to the second folding position, so that the third section 13 is folded in half toward the second section 12, thereby completing the folding of the belt. Figure 6 and Figure 7 , the first folding plate 422 is located at the first restoration position, and the second folding plate 432 is located at the second restoration position;

[0087] In addition, in some embodiments, reference Figures 1-10 The folding device of the knotting machine also includes a hot pressing mechanism 500, which is arranged on one side of the folding position. The hot pressing mechanism 500 is configured to perform hot pressing treatment on the folded tape at the folding position.

[0088] For the specific implementation structure of the hot pressing mechanism 500. Figures 1-10 In some embodiments, the hot pressing mechanism 500 includes a hot pressing drive source 510, a hot pressing head 520, a positioning drive source 530, and a positioning plate 540. The hot pressing head 520 is disposed at the output end of the hot pressing drive source 510. The hot pressing drive source 510 is configured to drive the hot pressing head 520 to move up and down between a hot pressing position and an avoidance position. In the hot pressing position, the hot pressing head 520 heats the folded belt at the folding position. In the avoidance position, the hot pressing head 520 avoids the pulling mechanism 200 and the folding mechanism 400. The positioning plate 540 is disposed at the output end of the positioning drive source 530. The positioning drive source 530 is configured to drive the positioning plate 540 to move up and down between a pressing position and a release position. In the pressing position, the positioning plate 540 presses the folded belt at the folding position. In the release position, the positioning plate 540 avoids the pulling mechanism 200 and the folding mechanism 400. The hot pressing drive source 510 and the positioning drive source 530 can be linear cylinders, respectively.

[0089] refer to Figures 1-10 The folding device of the knotting machine provided in some embodiments of the present application feeds material through a feeding mechanism 100, pulls material through a pulling mechanism 200, cuts the material strip 1 through a cutting mechanism 300, folds the strip in half to obtain a folded strip through a folding mechanism 400, and hot presses and shapes the folded strip through a hot pressing mechanism 500, thereby realizing the automated processing of feeding, pulling, cutting, folding, and hot pressing.

[0090] Other embodiments of the present application further provide a knotting machine, which includes the belt folding device of the knotting machine of any of the above embodiments.

[0091] Finally, it should be noted that the various technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The above embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A belt folding device for a knotting machine, characterized in that: include: A feeding mechanism (100) is configured to provide a material strip (1) to a feeding position along a first direction (X); A material pulling mechanism (200) is provided downstream of the material feeding position, and the material pulling mechanism (200) is configured to stretch the material strip (1) at the material feeding position along the first direction (X) and sequentially pass through the cutting position and the folding position; a cutting mechanism (300) disposed on one side of the cutting position, the cutting mechanism (300) being configured to cut the material strip (1) at the cutting position to obtain a strip to be folded (10) passing through the cutting position, the strip to be folded (10) comprising a first section (11), a second section (12), and a third section (13) connected in sequence; The folding mechanism (400) comprises a carrier (410) arranged at the folding position, a first folding belt assembly (420) and a second folding belt assembly (430) located on both sides of the carrier (410), and a pressing belt assembly (440) located on one side of the carrier (410), wherein the pressing belt assembly (440) is configured to press the second section (12) onto the carrier (410), the first folding belt assembly (420) is configured to fold the first section (11) toward the second section (12), and the second folding belt assembly (430) is configured to fold the third section (13) toward the second section (12).

2. The belt folding device of the knotting machine according to claim 1, characterized in that: The feeding mechanism (100) comprises: A feeding reel (110) configured to draw out a material strip (1); A lifting and drawing roller assembly (120) comprises a support frame (121) and a lifting roller (122) arranged downstream of the feeding reel (110), wherein the support frame (121) is provided with a slideway (1211) extending in a vertical direction (Z), and the lifting roller (122) is arranged on the slideway (1211) so as to be able to be lifted and slid, and the lifting roller (122) is configured to tighten the material strip (1) drawn out from the feeding reel (110); A tensioning roller assembly (130) comprising at least one roller (131) disposed downstream of the lifting roller (122), the roller (131) being configured to tension the material strip (1) drawn out of the lifting roller (122) and guide the material strip (1) along the first direction (X); a first clamping jaw assembly (140) disposed downstream of the tensioning roller assembly (130), wherein the first clamping jaw assembly (140) is configured to selectively clamp a passing material strip (1); a deflection correction component (150) disposed downstream of the first clamping jaw component (140), the deflection correction component (150) having a deflection correction channel (151) extending along the first direction (X), the deflection correction channel (151) being configured for the feed belt (1) to pass through; The second clamping jaw assembly (160) is arranged downstream of the deviation correcting assembly (150) and upstream of the feeding position, and the second clamping jaw assembly (160) is configured to selectively clamp the passing material belt (1).

3. The belt folding device of the knotting machine according to claim 1, characterized in that: The material pulling mechanism (200) comprises: A first linear drive member (210); A third clamping jaw assembly (220) is provided at the output end of the first linear drive member (210), and the third clamping jaw assembly (220) is configured to clamp the material strip (1) at the feeding position, and the first linear drive member (210) is configured to drive the third clamping jaw assembly (220) to move along the first direction (X) to stretch the material strip (1) along the first direction (X) and pass through the cutting position and the folding position in sequence.

4. The belt folding device of the knotting machine according to claim 1, characterized in that: The cutting mechanism (300) comprises: A first slide rail (310) extending along the first direction (X); A first sliding block (320) is slidably connected to the first sliding rail (310); A cylindrical roller (330) is rotatably disposed on the first slider (320), the rotation axis of the cylindrical roller (330) extending in a horizontal direction perpendicular to the first direction (X), and a hob portion (331) is convexly provided on a side wall of the cylindrical roller (330); a push-pull driving source (340), an output end of which is connected to the first slider (320), the push-pull driving source (340) being configured to drive the first slider (320) to reciprocate along the first direction (X); A first gear (350) is rotatably disposed on the first slider (320), and the first gear (350) is coaxially fixedly connected to the cylindrical roller (330); a second gear (360) rotatably disposed on the first slider (320), the second gear (360) being meshed with the first gear (350); a rack (370) extending along the first direction (X) and fixed relative to the first slide rail (310), the rack (370) meshing with the second gear (360) for transmission; Cut off the lifting drive (380); A cutting pressure head (390) is provided at the output end of the cutting lifting drive (380), and the cutting pressure head (390) is located above the cutting position. The cutting lifting drive (380) is configured to drive the cutting pressure head (390) to press down and cooperate with the hob part (331) to squeeze and cut the material strip (1) passing through the cutting position. The cutting lifting drive (380) is also configured to drive the cutting pressure head (390) to rise to an avoidance position to avoid the pulling mechanism (200).

5. The belt folding device of the knotting machine according to claim 1, characterized in that: The first folding belt assembly (420) includes a first push-pull power source (421) and a first folding plate (422). The first folding plate (422) is arranged at the output end of the first push-pull power source (421). The first push-pull power source (421) is configured to drive the first folding plate (422) to move back and forth between a first folding position and a first restoring position. The first folding plate (422) moves from the first restoring position to the first folding position so that the first section (11) is folded toward the second section (12). The first folding plate (422) avoids the supporting platform (410) at the first restoring position. The second folding belt assembly (430) includes a second push-pull power source (431) and a second folding plate (432). The second folding plate (432) is arranged at the output end of the second push-pull power source (431). The second push-pull power source (431) is configured to drive the second folding plate (432) to move back and forth between the second folding position and the second recovery position. When the pulling mechanism (200) stretches the material belt (1) through the folding position, the first folding plate (422), the second folding plate (432) and the supporting platform (410) are configured to jointly support the belt to be folded (10) passing through the folding position. The second folding plate (432) moves from the second recovery position to the second folding position so that the third section (13) is folded toward the second section (12). The second folding plate (432) avoids the supporting platform (410) at the second recovery position. The belt pressing assembly (440) includes a rotation driving source (441) arranged on one side of the supporting platform (410), a belt pressing clamp (442) arranged at the output end of the rotation driving source (441), a first pressing plate (443) arranged at the first finger portion of the belt pressing clamp (442), and a second pressing plate (444) arranged at the second finger portion of the belt pressing clamp (442). The second pressing plate (444) is arranged side by side with the first pressing plate (443). The belt pressing clamp (442) ) is configured to drive the first pressure plate (443) and the second pressure plate (444) to perform opening and closing movements, and the rotary drive source (441) is configured to drive the belt pressing clamp (442) by rotating so that the first pressure plate (443) and the second pressure plate (444) can reciprocate between a first position and a second position, wherein the first position is located directly above the supporting platform (410) and the second position is located on one side of the supporting platform (410) to avoid the supporting platform (410).

6. The belt folding device of the knotting machine according to claim 5, characterized in that: Also includes: A carrier plate (450), wherein the first folding belt assembly (420), the second folding belt assembly (430), and the carrying platform (410) are respectively arranged on the carrier plate (450); A lifting drive source (460), the carrier plate (450) is arranged at the output end of the lifting drive source (460), and the lifting drive source (460) is configured to perform lifting movement along a vertical direction (Z) perpendicular to the first direction (X).

7. The belt folding device of the knotting machine according to claim 5, characterized in that: The bearing surface of the bearing platform (410) is provided with an accommodating groove (411), and the first pressing plate (443) and the second pressing plate (444) are configured to press the second section (12) against the accommodating groove (411); The belt folding device of the knotting machine also includes a second slide rail (423) extending along a second direction (Y) intersecting with the first direction (X), a second slider (424) plugged into the second slide rail (423), a third slide rail (433) extending along the second direction (Y), and a third slider (434) plugged into the third slide rail (433); the first folding plate (422) is fixed to the second slider (424), and the second folding plate (432) is fixed to the third slider (434).

8. The belt folding device of the knotting machine according to claim 1, characterized in that: Also includes: A hot pressing mechanism (500) is provided on one side of the folding position, and the hot pressing mechanism (500) is configured to perform a hot pressing process on the folded belt at the folding position.

9. The belt folding device of the knotting machine according to claim 8, characterized in that: The hot pressing mechanism (500) comprises: a heat press driving source (510); A hot pressing head (520) is provided at the output end of the hot pressing driving source (510), the hot pressing driving source (510) being configured to drive the hot pressing head (520) to move up and down between a hot pressing position and an avoidance position, the hot pressing head (520) hot pressing the folded belt at the folding position at the hot pressing position, and the hot pressing head (520) avoids the pulling mechanism (200) and the folding mechanism (400) at the avoidance position; Positioning drive source (530); A positioning plate (540) is provided at the output end of the positioning drive source (530), and the positioning drive source (530) is configured to drive the positioning plate (540) to move up and down between a pressing position and a releasing position, wherein the positioning plate (540) presses the folding belt at the folding position at the pressing position, and the positioning plate (540) avoids the pulling mechanism (200) and the folding mechanism (400) at the releasing position.

10. A knotting machine, characterized in that: A belt folding device comprising the knotting machine according to any one of claims 1-9.

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