Rope threading device for tension compensation of hand-held rope

Abstract

The utility model relates to a rope threading machine, in particular to a rope threading device for tension compensation of a hand lifting rope, which comprises a rack, a bag body conveying mechanism is arranged on the rack, a bag conveying path is formed on the bag body conveying mechanism, a rope threading device is arranged on the bag conveying path, and the rope threading device comprises a hand lifting rope blunt end mechanism, a rope pulling piece, a hand lifting rope cutting mechanism and an inserting mechanism. The inserting mechanism comprises a left inserting mechanism body and a right inserting mechanism body, the left inserting mechanism body and the right inserting mechanism body are arranged on the two sides of the bag conveying path respectively, each of the left inserting mechanism body and the right inserting mechanism body comprises an inserting piece, and the inserting pieces comprise a first hole inserting piece and a second hole inserting piece. After the first hole inserting piece and / or the rope pulling piece move in place in the front-back direction, the starting end of the hand lifting rope clamped by the rope pulling piece is clamped by the first hole inserting piece, the distance between the rope taking position and the rope pulling position is increased, and it is guaranteed that the starting end of the hand lifting rope can be accurately transmitted through movement of the rope pulling piece and / or the first hole inserting piece.

Description

Technical Field

[0001] The utility model relates to a string threading machine, in particular to a string threading device with tension compensation for a hand-held string. Background Technique

[0002] The Chinese invention patent with the publication number of CN107672231B discloses a string threading machine for a handbag. During the cutting operation, the string clamping component and the string taking component fix the hand-held string to determine the length of the hand-held string. The distance between the string clamping component and the string taking component is the set length of the hand-held string. When cutting, the hand-held string is in a tensioned state. Due to the existence of tension, there is an elongation of the hand-held string during cutting. Therefore, there is still an error between the set length of the hand-held string and the actual length. In order to make the actual length reach the required length, a compensation amount needs to be designed. Summary of the Utility Model

[0003] In view of the technical problems existing in the background technique, the utility model aims to provide a string threading device with tension compensation for a hand-held string, and designs a compensation amount to ensure that the length of the hand-held string reaches the set value.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: The string threading device with tension compensation for a hand-held string includes a frame. A bag conveying mechanism is arranged on the frame. The bag conveying mechanism forms a bag conveying path. The bag is vertically arranged on the bag conveying path. A string threading device is arranged on the bag conveying path. The string threading device includes a blunt end mechanism for the hand-held string, a string pulling member, a hand-held string cutting mechanism, and an inserting mechanism. The string pulling member is arranged to move back and forth. The string pulling member has a string taking position and a string pulling position. The hand-held string cutting mechanism is located between the string pulling member and the blunt end mechanism for the hand-held string. The hand-held string cutting mechanism includes a clamping member. When the string pulling member is in the string taking position, the starting end of the hand-held string clamped by the clamping member is handed over to be clamped by the string pulling member. When the string pulling member is in the string pulling position, the clamping member clamps the hand-held string. The inserting mechanism includes a left inserting mechanism and a right inserting mechanism. The left inserting mechanism and the right inserting mechanism are respectively arranged on both sides of the bag conveying path. Both the left inserting mechanism and the right inserting mechanism include an inserting member. The inserting member includes a first hole inserting member and a second hole inserting member. Among them, after the first hole inserting member and / or the string pulling member move in place in the front-back direction, the starting end of the hand-held string clamped by the string pulling member is handed over to be clamped by the first hole inserting member.

[0005] In this solution, the distance between the string taking position and the string pulling position is increased. After the hand-held string is cut and formed, the string pulling member and / or the first hole inserting member need to move to ensure the accurate transmission of the starting end of the hand-held string.

[0006] Preferably, the string taking position is fixed. The blunt end mechanism for the hand-held string is arranged to be adjusted by moving back and forth. The string pulling position is arranged to be adjusted by moving back and forth. When adjusting, the blunt end mechanism for the hand-held string moves in the opposite direction to the string pulling position for adjustment.

[0007] In this solution, the rope-taking position corresponds to the clamping member. Taking the clamping member as a reference, according to the material and length of the hand-held rope, the position of the pull rope is adjusted by moving it forward and backward to adjust the compensation length. The reverse movement adjustment of the blunt head mechanism of the hand-held rope can ensure that the position of the chuck remains unchanged when the clamping member clamps the hand-held rope before and after adjustment.

[0008] Preferably, the pull rope member further has a rope-feeding position, which is located between the rope-taking position and the pull rope position. When the pull rope member is in the rope-feeding position, the starting end of the hand-held rope clamped by the pull rope member is clamped by the first hole inserting member.

[0009] In this solution, when the pull rope member moves to the rope-feeding position to hand over the starting end of the hand-held rope to the first hole inserting member, the first hole inserting member does not need to move forward and backward, and the stability is better.

[0010] Preferably, the first hole inserting member is arranged to be adjusted by moving forward and backward on the frame, and the rope-feeding position is arranged to be adjusted by moving forward and backward. During adjustment, the second hole inserting member remains stationary, and the first hole inserting member moves forward or backward for adjustment. The rope-feeding position moves in the same direction as the first hole inserting member for adjustment.

[0011] In this solution, when the hole distance changes, the first hole inserting member is adjusted with the second hole as a reference, and the adjustment is fast. The rope-feeding position is adjusted accordingly, so that the pull rope member can accurately hand over the starting end of the hand-held rope to the first hole inserting member.

[0012] Preferably, the bag conveying mechanism includes a conveyor belt, and a bag clamping assembly for clamping the bag is installed on the conveyor belt. The bag clamping assembly includes a first bag clamping member and a second bag clamping member. The first bag clamping member is arranged to be adjusted by moving forward and backward on the conveyor belt. During adjustment, the first bag clamping member moves in the same direction as the first hole inserting member for adjustment.

[0013] In this solution, the bag clamping members are distributed front and back, and the bag surface faces both sides. The first bag clamping member is adjusted in the same direction as the first hole inserting member with the second hole on the bag surface as a reference, ensuring the stability of the bag clamping assembly for clamping the bag.

[0014] Preferably, the conveyor belt is movably installed on the frame and moves up and down relative to the frame.

[0015] In this solution, the conveyor belt moves up and down relative to the frame to adapt to different bag heights, so that the hole positions are aligned in height before and after adjustment.

[0016] Preferably, the first hole inserting member is horizontally rotatably arranged on the first turning seat, the second hole inserting member is horizontally rotatably arranged on the second turning seat, the first turning seat is arranged to be adjusted by moving forward and backward on the push plate, the second turning seat is fixedly arranged on the push plate, and the push plate is arranged to move left and right on the frame.

[0017] In this solution, the push plate drives the first steering seat and the second steering seat to move left and right, and the movements are unified and stable.

[0018] Preferably, the hand rope cutting mechanism comprises a cutting piece for cutting the hand rope clamping head. During cutting, the second hole insert and the clamping piece clamp the hand rope, and the cutting piece cuts the hand rope from between the two.

[0019] In this solution, the second hole insert and the clamping member clamp the hand rope, so that the cutting point is fixed before and after during cutting, the tension is sufficient, and the cutting effect is good.

[0020] Preferably, the rope pulling member includes a pneumatic clamp, which is mounted on a mounting plate, which is mounted on a synchronous belt, which is wound around a first synchronous wheel and a second synchronous wheel, and the first synchronous wheel is connected to the motor transmission.

[0021] In this solution, the motor drives the first synchronous wheel to rotate, driving the synchronous belt and the mounting plate installed on the synchronous belt to move, thereby realizing the forward and backward movement of the pneumatic gripper.

[0022] Preferably, the mounting plate is connected to a slider, and the slider is slidably arranged on a linear guide rail.

[0023] In this solution, a sliding fit linear guide guides the forward and backward movement of the mounting plate.

[0024] The beneficial effects of this utility model include increasing the distance between the rope removal position and the rope pull position. After the hand rope is cut and formed, the rope pull member and / or the first hole insert need to be moved to ensure the starting end of the hand rope can be accurately passed. The first hole insert is adjusted based on the second hole on the bag surface, making adjustment fast and stable, and optimizing the adjustment structure. Therefore, this utility model has substantial advantages and improvements compared to the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following describes the relevant details and working principles of the implementation methods and embodiments of the present invention in conjunction with the accompanying drawings.

[0026] Figure 1 It is a structural diagram of the present utility model.

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the rope threading device in the present utility model.

[0028] Figure 3 for Figure 2 A magnified view of center.

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the insertion mechanism in the present utility model.

[0030] Figure 5This is a schematic structural diagram of the drawstring member in the present utility model.

[0031] In the figure: 1, frame; 2, bag body conveying mechanism; 3, string threading device; 4, first hole insert; 5, second hole insert; 6, inserting mechanism; 9, insert; 10, bag opening member; 11, first turning seat; 12, second turning seat; 13, push plate; 19, drawstring member; 20, blunt end mechanism for the carrying cord; 21, cutting mechanism for the carrying cord; 22, clamping member; 23, pneumatic gripper; 24, mounting plate; 25, synchronous belt; 26, first synchronous pulley; 27, second synchronous pulley; 28, slider; 29, linear guide; 30, motor. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0034] In the description of the present application, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0035] See the appendix Figures 1-5, in the embodiments of the present embodiment, a string threading device for compensating the tension of a carrying rope includes a frame 1. A bag conveying mechanism 2 is provided on the frame 1. The bag conveying mechanism 2 forms a bag feeding path. The bag is vertically arranged on the bag feeding path. A string threading device 3 is arranged on the bag feeding path. The string threading device 3 includes a blunt end mechanism 20 for the carrying rope, a rope pulling member 19, a cutting mechanism 21 for the carrying rope, and an inserting mechanism 6. The blunt end mechanism 20 for the carrying rope is arranged to be adjusted by moving back and forth. The rope pulling member 19 is arranged to move back and forth. The rope pulling member 19 has a rope taking position and a rope pulling position. The rope taking position is fixed. The rope pulling position is arranged to be adjusted by moving back and forth. When adjusting, the blunt end mechanism 20 for the carrying rope moves and adjusts in the opposite direction to the rope pulling position. The cutting mechanism 21 for the carrying rope is located between the rope pulling member 19 and the blunt end mechanism 20 for the carrying rope. The cutting mechanism 21 for the carrying rope includes a clamping member 22 and a cutting member for cutting the clamping head of the carrying rope. When cutting, the second hole inserting member 5 and the clamping member 22 clamp the carrying rope, and the cutting member cuts the carrying rope between the two. When the rope pulling member 19 is in the rope taking position, the starting end of the carrying rope clamped by the clamping member 22 is handed over to the rope pulling member 19 for clamping. When the rope pulling member 19 is in the rope pulling position, the clamping member 22 clamps the carrying rope. The inserting mechanism 6 includes a left inserting mechanism and a right inserting mechanism. The left inserting mechanism and the right inserting mechanism are respectively arranged on both sides of the bag feeding path. Both the left inserting mechanism and the right inserting mechanism include an inserting member 9. The inserting member 9 includes a first hole inserting member 4 and a second hole inserting member 5.

[0036] Wherein, after the first hole inserting member 4 and / or the rope pulling member 19 move in place in the front-rear direction, the starting end of the carrying rope clamped by the rope pulling member 19 is handed over to the first hole inserting member 4 for clamping.

[0037] In this embodiment, the bag conveying mechanism 2 conveys the bag from front to back. The bag is arranged vertically, with the left and right bag surfaces facing both sides. The bag is provided with a first hole and a second hole. The blunt-end mechanism 20 of the carrying cord wraps a plastic sheet around the carrying cord to form a head. When the cord pulling member 19 reaches the cord-taking position, it clamps the starting end of the carrying cord clamped by the clamping member 22, and the clamping member 22 releases to allow the carrying cord to be stretched. The cord pulling member 19 moves backward to reach the cord-pulling position. The clamping member 22 clamps the carrying cord so that the length of the carrying cord between the cord pulling member 19 and the clamping member 22 is determined. The second-hole inserting member 5 clamps the carrying cord, and the cutting member cuts the carrying cord between the second-hole inserting member 5 and the clamping member 22 to form a new starting end and a new ending end of the carrying cord. The second-hole inserting member 5 clamps the ending end of the carrying cord, and the clamping member 22 clamps the starting end of the carrying cord. Among them, the blunt-end mechanism 20 of the carrying cord and the cutting mechanism 21 of the carrying cord are mature technologies. When the material of the carrying cord changes, the cord-pulling position is adjusted back and forth to adapt to the change in the elongation. When the length of the carrying cord changes, the blunt-end mechanism 20 of the carrying cord and the cord-pulling position are adjusted in the reverse direction based on the cutting mechanism 21 of the carrying cord to adapt to the change in the cord length and the elongation, and compensation is made at the starting end of the carrying cord, with quick adjustment. The transfer of the starting end of the carrying cord between the cord pulling member 19 and the first-hole inserting member 4 can be achieved by keeping one stationary and moving the other to approach, or by moving both to approach each other.

[0038] In other alternative embodiments, the clamping member 22 can be moved for compensation. The clamping member 22 has a cord-clamping position and a cord-cutting position, and the distance between the two is the compensation length, and compensation is made at the ending end of the carrying cord.

[0039] See the appendix Figures 4-5 The cord pulling member 19 further has a cord-feeding position, which is located between the cord-taking position and the cord-pulling position. The cord-feeding position is adjusted by moving back and forth. When the cord pulling member 19 is at the cord-feeding position, the starting end of the carrying cord clamped by the cord pulling member 19 is clamped by the first-hole inserting member 4. The first-hole inserting member 4 is adjusted by moving back and forth on the frame 1. When adjusting, the second-hole inserting member 5 is stationary, and the first-hole inserting member 4 moves forward or backward for adjustment. The cord-feeding position moves in the same direction as the first-hole inserting member 4 for adjustment. The bag conveying mechanism 2 includes a conveyor belt, and a bag-clamping assembly for clamping the bag is installed on the conveyor belt. The bag-clamping assembly includes a first bag-clamping member and a second bag-clamping member. The first bag-clamping member is adjusted by moving back and forth on the conveyor belt. When adjusting, the first bag-clamping member moves in the same direction as the first-hole inserting member 4 for adjustment. The conveyor belt is movably installed on the frame 1 and moves up and down relative to the frame 1.

[0040] In this embodiment, the clamping member 22 clamps the hand-held rope so that the length of the hand-held rope between the rope pulling member 19 and the clamping member 22 is determined. The rope pulling member 19 moves forward to reach the rope feeding position, and the first hole inserting member 4 and the second hole inserting member 5 are in place and clamp the hand-held rope. The rope pulling member 19 moves to deliver the starting end of the hand-held rope to the first hole inserting member 4. The overall stability is good. When the hole distance changes, the first hole inserting member 4, the rope feeding position, and the first bag clamping member are adjusted in the same direction with the second hole as the reference. Compared with the centering adjustment, the adjustment is fast and the bag clamping is accurate. When the bag height changes, the conveyor belt moves up and down to ensure that the position of the rope threading hole remains unchanged.

[0041] See appendix Figure 4 , the first hole inserting member 4 is horizontally rotatably arranged on the first steering seat 11, the second hole inserting member 5 is horizontally rotatably arranged on the second steering seat 12, the first steering seat 11 is movably adjusted in the front-back direction and arranged on the push plate 13, the second steering seat 12 is fixedly arranged on the push plate 13, and the push plate 13 is movably arranged left and right on the frame 1.

[0042] In this embodiment, the second steering seat 12 is connected with a lead screw and a guide rod. The first steering seat 11 is in threaded cooperation with the lead screw, and the guide rod guides the adjustment of the first steering seat 11. The first hole inserting member 4 and the second hole inserting member 5 are pneumatic finger grippers. A groove is opened in the middle of the gripper for accurately clamping the hand-held rope. The first hole inserting member 4 and the second hole inserting member 5 rotate in opposite directions to clamp the hand-held rope and rotate towards each other to align with the rope threading hole. The push plate 13 moves to complete the rope insertion, and a bag opening member 10 is configured to open the bag mouth.

[0043] In other alternative embodiments, in addition to the lead screw, a combination of a moving block and a synchronous belt 25 can also be used for the moving adjustment.

[0044] See appendix Figure 5 , the rope pulling member 19 includes a pneumatic gripper 23. The pneumatic gripper 23 is installed on the mounting plate 24. The mounting plate 24 is installed on the synchronous belt 25. The synchronous belt 25 is wound around the first synchronous pulley 26 and the second synchronous pulley 27. The first synchronous pulley 26 is in transmission connection with the motor 30. The mounting plate 24 is connected with a slider 28, and the slider 28 is slidably arranged on the linear guide rail 29.

[0045] In this embodiment, the motor 30 drives the first synchronous pulley 26 to rotate, drives the synchronous belt 25 and the mounting plate 24 to move back and forth, realizes the back-and-forth movement of the pneumatic gripper 23, and the slider 28 cooperates with the linear guide rail 29 to guide the back-and-forth movement of the mounting plate 24.

[0046] The above is the preferred embodiment of the present utility model. It should be noted that the protection scope of the present utility model is not limited thereto. For those skilled in the art of this technology, without departing from the technical scope disclosed by the present utility model and on the premise of the same inventive concept, several improvements, retouches or equivalent replacements can also be made, which are also regarded as the protection scope of the present utility model.

Claims

1. A string threading device for compensating the tension of a carrying rope, comprising a frame (1), a bag conveying mechanism (2) is arranged on the frame (1), the bag conveying mechanism (2) forms a bag feeding path, the bag is vertically arranged on the bag feeding path, and a string threading device (3) is arranged on the bag feeding path. The string threading device (3) includes a blunt end mechanism (20) for the carrying rope; a rope pulling member (19) which is arranged to move back and forth, and the rope pulling member (19) has a rope taking position and a rope pulling position; a carrying rope cutting mechanism (21) which is located between the rope pulling member (19) and the blunt end mechanism (20) for the carrying rope. The carrying rope cutting mechanism (21) includes a clamping member (22). When the rope pulling member (19) is in the rope taking position, the starting end of the carrying rope clamped by the clamping member (22) is handed over to the rope pulling member (19) for clamping. When the rope pulling member (19) is in the rope pulling position, the clamping member (22) clamps the carrying rope; an inserting mechanism (6), which includes a left inserting mechanism and a right inserting mechanism. The left inserting mechanism and the right inserting mechanism are respectively arranged on both sides of the bag feeding path. Both the left inserting mechanism and the right inserting mechanism include an inserting member (9), and the inserting member (9) includes a first hole inserting member (4) and a second hole inserting member (5); It is characterized in that: After the first hole inserting member (4) and / or the rope pulling member (19) move in place in the front-back direction, the starting end of the carrying rope clamped by the rope pulling member (19) is handed over to the first hole inserting member (4) for clamping.

2. The string threading device for compensating the tension of the hand-held rope according to claim 1, wherein: The rope taking position is fixed, the blunt end mechanism (20) for the carrying rope is arranged to move back and forth for adjustment, and the rope pulling position is arranged to move back and forth for adjustment. During adjustment, the blunt end mechanism (20) for the carrying rope moves in the opposite direction to the rope pulling position for adjustment.

3. The string threading device for compensating the tension of the carrying rope according to claim 2, wherein: The rope pulling member (19) also has a rope feeding position, and the rope feeding position is located between the rope taking position and the rope pulling position. When the rope pulling member (19) is in the rope feeding position, the starting end of the carrying rope clamped by the rope pulling member (19) is handed over to the first hole inserting member (4) for clamping.

4. The string threading device for compensating the tension of the carrying rope according to claim 3, wherein: The first hole inserting member (4) is arranged to move back and forth for adjustment on the frame (1), and the rope feeding position is arranged to move back and forth for adjustment. During adjustment, the second hole inserting member (5) is stationary, the first hole inserting member (4) moves forward or backward for adjustment, and the rope feeding position moves in the same direction as the first hole inserting member (4) for adjustment.

5. The threading device for compensating the tension of the carrying rope according to claim 2, wherein: The bag conveying mechanism (2) includes a conveyor belt, and a bag clamping assembly for clamping the bag is installed on the conveyor belt. The bag clamping assembly includes a first bag clamping member and a second bag clamping member. The first bag clamping member is arranged to move back and forth for adjustment on the conveyor belt. During adjustment, the first bag clamping member moves in the same direction as the first hole inserting member (4) for adjustment.

6. The string threading device for compensating the tension of the carrying rope according to claim 5, wherein: The conveyor belt is movably installed on the frame (1) and moves up and down relative to the frame (1).

7. The string threading device with hand-held rope tension compensation according to claim 4, characterized in that: The first hole insert (4) is horizontally rotatably arranged on the first steering seat (11), the second hole insert (5) is horizontally rotatably arranged on the second steering seat (12), the first steering seat (11) is arranged on the push plate (13) with front-back movement adjustment, the second steering seat (12) is fixedly arranged on the push plate (13), and the push plate (13) is arranged on the frame (1) with left-right movement.

8. The string threading device for compensating the tension of the carrying rope according to claim 1, characterized in that: The handle cord cutting mechanism (21) includes a cutting member for cutting the handle cord chuck. When cutting, the second hole insert (5) and the clamping member (22) clamp the handle cord, and the cutting member cuts the handle cord between the two.

9. The string threading device with hand-held rope tension compensation according to claim 1, characterized in that: The cord pulling member (19) includes a pneumatic gripper (23), the pneumatic gripper (23) is installed on the mounting plate (24), the mounting plate (24) is installed on the synchronous belt (25), the synchronous belt (25) is wound around the first synchronous pulley (26) and the second synchronous pulley (27), and the first synchronous pulley (26) is in transmission connection with the motor (30).

10. A string threading device for compensating the tension of a handle string, as described in claim 9, characterized in that: The mounting plate (24) is connected with a slider (28), and the slider (28) is slidably arranged on the linear guide rail (29).

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