Rope threading and knotting device suitable for narrow space

Abstract

The utility model belongs to the technical field of knotting equipment, discloses a stringing and knotting device suitable for a narrow space, and mainly solves the problem that knotting in the narrow space in a paper bag cannot be realized due to the fact that an existing beak knotter mechanism is large. The stringing and knotting device suitable for the narrow space comprises a stand capable of ascending and descending relative to a paper bag or a paper box, the stand is controlled to ascend and descend through a lifting mechanism, a knotting clamp is arranged on the stand and comprises two clamping jaws, a rope winding clamp is arranged on the knotting clamp, and the rope winding clamp is connected with the rope winding clamp. A rotating mechanism for driving the rope winding clip to rotate around the knotting clip is arranged on the stand, a moving mechanism for driving the rope winding clip to move is arranged on the stand, and an opening and closing mechanism for controlling opening and closing of the knotting clip is arranged on the stand. Compared with the prior art, automatic knotting of rope heads in a narrow space of a gift bag can be achieved, labor cost is saved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of knotting devices, and particularly relates to a rope threading and knotting device applicable to narrow spaces. Background Art

[0002] There are three ways to fix the handle ropes of gift bags (boxes), namely plastic glue heads, direct bonding, and knotting at the rope ends. The fixing method with plastic glue heads has been automated. Both the plastic glue head and direct bonding methods require the use of glue, which is not environmentally friendly. At present, both direct bonding and knotting at the rope ends still need to be manually completed, resulting in relatively low efficiency. Currently, the market prefers the environmentally friendly method of knotting at the rope ends.

[0003] In the prior art, the main method to achieve automatic knotting at the rope ends is to use a beak knotting device. However, the existing beak knotting device has a relatively large mechanism and cannot achieve knotting in the narrow space inside a paper bag. Based on the current situation, it is necessary to design a mechanism suitable for knotting in the narrow space of a paper bag. Summary of the Utility Model

[0004] In order to solve the above deficiencies in the prior art, the purpose of the present utility model is to provide a rope threading and knotting device applicable to narrow spaces. This rope threading and knotting device applicable to narrow spaces can achieve automatic knotting of the rope ends in the narrow space of a gift bag, saving labor costs and improving production efficiency.

[0005] The technical solution adopted by the present rope threading and knotting device applicable to narrow spaces to solve its technical problems is as follows:

[0006] There is provided a rope threading and knotting device applicable to narrow spaces, including a stand that can be lifted relative to a paper bag or a paper box. A knotting clip is provided on the stand. The knotting clip includes two clamping jaws. A rope winding clip is provided on the knotting clip. A rotating mechanism for driving the rope winding clip to rotate around the knotting clip is provided on the stand. A moving mechanism for driving the rope winding clip to move is provided on the stand. An opening and closing mechanism for controlling the opening and closing of the knotting clip is provided on the stand.

[0007] Furthermore, the knotting clip is of a connecting rod structure, and further includes two connecting rods, a housing, a sleeve, and a pull rod. The middle parts of the opposite surfaces of the two clamping jaws are hingedly installed inside the housing. The lower end of the sleeve is fixedly connected to the top of the housing and fixedly connected. The tops of the clamping jaws are respectively hingedly connected to one end of the connecting rod. The other ends of the connecting rods are both hingedly connected to the lower end of the pull rod. The pull rod passes through the sleeve. The outer periphery of the upper part of the sleeve is fixedly connected to the stand through a connecting plate. The upper end of the pull rod is fixedly connected to the opening and closing mechanism.

[0008] Furthermore, the rope winding clip consists of a clamp, a moving frame, a spline hollow shaft and a spline sleeve. The clamp is fixedly installed on one side of the moving frame. The sleeve passes through the moving frame and the spline hollow shaft with a clearance fit. The spline sleeve is installed on the frame table through a bearing seat. The moving mechanism can drive the spline hollow shaft to move up and down, and the rotating mechanism can drive the spline sleeve to rotate.

[0009] Furthermore, a linear bearing is arranged between the moving frame and the bearing seat supporting the spline sleeve for guiding.

[0010] Furthermore, the rotating mechanism consists of a rotating motor and a rotating transmission pair. The rotating motor is fixedly installed on the frame table, and the rotating transmission pair is arranged between the output shaft of the rotating motor and the spline sleeve.

[0011] Furthermore, the moving mechanism consists of a moving motor, a moving pair and a moving block. The moving motor is fixedly installed on the frame table. The input end of the moving pair is fixedly connected to the output shaft of the moving motor, and the output end of the moving pair is fixedly connected to the moving block. The spline hollow shaft passes through the moving block and is rotatably connected.

[0012] Furthermore, the opening and closing angle of the two jaws of the knotting clip is 0 to 90°.

[0013] Furthermore, the opening and closing mechanism is a cylinder. The fixed end of the cylinder is fixedly installed on the frame table, and the output end of the cylinder is fixedly connected to the upper end of the pull rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. An apparatus for tying a knot in a rope applicable to a narrow space according to an example of the present utility model drives a knot-tying clip and a rope-winding clip to move up and down through the lifting of a mounting table, so that the knot-tying clip and the rope-winding clip are located inside a gift bag. The rope-winding clip is driven to move up and down and rotate around the knot-tying clip through a rotating mechanism and a moving mechanism. By controlling the opening and closing of the rope-winding clip, the rope end portion can be clamped. The opening of the knot-tying clip is controlled by an opening and closing mechanism. The rope-winding clip is driven to move upward by the moving mechanism, and the rope end portion is made higher than the bottom end of the clamping jaw. The rope-winding clip is driven to rotate around the knot-tying clip for one circle by a rotating device. The rope-winding clip is driven to move upward by the moving mechanism, and the rotating device drives the rope-winding clip to continue rotating around the knot-tying clip, so that the rope end portion bypasses from above the rope and bypasses one of the clamping jaws. The rope-winding clip is driven to move downward by the moving mechanism, and the rotating device drives the rope-winding clip to continue rotating around the knot-tying clip, so that the rope end portion bypasses the bottom end of the other clamping jaw. The rope-winding clip is driven to move upward by the moving mechanism, and the rotation of the rope-winding clip around the knot-tying clip is controlled to stop by the rotating device. At this time, the rope end portion is located between the clamping jaws. The two clamping jaws are controlled by the opening and closing mechanism to clamp the rope end portion, and the rope-winding clip is controlled to release the rope end portion. Finally, the mounting table moves upward, and the knot-tying clip can drive the rope end portion to pass through the rope wound around the clamping jaws, thereby achieving knotting. Finally, the clamping jaws are controlled to open by the opening and closing mechanism. Compared with the prior art, the present utility model can automatically tie a knot in the rope end in a narrow space of a gift bag, saving labor costs and improving production efficiency.

[0016] 2. An apparatus for tying a knot in a rope applicable to a narrow space according to an example of the present utility model can drive the upper end of a pull rod to move up and down by pulling the upper end of the pull rod through an opening and closing mechanism. The up and down movement of the pull rod can drive a connecting rod to move and rotate, and further drive a clamping jaw to rotate, so that the clamping jaw opens or closes. The structure of this knot-tying clip is simple and convenient to use and control.

[0017] 3. An apparatus for tying a knot in a rope applicable to a narrow space according to an example of the present utility model can drive a spline hollow shaft to move up and down through a moving mechanism, and further drive a fixture to move up and down through a moving bracket. The spline sleeve is driven to rotate by a rotating mechanism. The rotation of the spline sleeve can drive the spline hollow shaft to rotate, and further drive the fixture to rotate through the moving bracket. This rope-winding clip can move up and down and rotate around the knot-tying clip, and the two functions do not affect each other.

[0018] 4. An apparatus for tying a knot in a rope applicable to a narrow space according to an example of the present utility model, a linear bearing can play a guiding function and does not affect the rotation of the moving bracket.

[0019] 5. A rope threading and knotting device for narrow spaces according to an example of the present utility model. When the rotary motor is turned on, the rotation of the output shaft of the rotary motor can drive the spline sleeve to rotate through a rotary transmission pair. The structure of this rotary mechanism is simple and convenient to use.

[0020] 6. A rope threading and knotting device for narrow spaces according to an example of the present utility model. When the moving motor is turned on, the rotation of the output shaft of the moving motor can drive the moving pair to operate. Furthermore, the output end of the moving pair can drive the moving block to move up and down, and thus can drive the spline hollow shaft to move up and down without affecting the rotation of the spline hollow shaft.

[0021] 7. A rope threading and knotting device for narrow spaces according to an example of the present utility model. The telescoping of the air cylinder can drive the pull rod to move up and down, and thus can control the opening and closing of the knotting clip, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objectives, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is a schematic diagram of the closed state of the knotting clip;

[0025] Figure 3 is a schematic diagram of the open state of the knotting clip.

[0026] In the figure: 1 stand; 2 knotting clip; 21 jaw; 22 connecting rod; 23 housing; 24 sleeve; 25 pull rod; 3 rope winding clip; 31 fixture; 32 moving frame; 33 spline hollow shaft; 34 spline sleeve; 41 rotary motor; 51 moving motor; 52 moving pair; 53 moving block; 61 air cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following further elaborates on the present application with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the related utility model and not for limiting the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0028] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0029] As Figures 1-3As shown in the figure, a rope threading and knotting device applicable to narrow spaces includes a platform 1 that can be lifted relative to a paper bag or a paper box. The platform 1 is controlled to be lifted by a lifting mechanism, and the lifting mechanism can adopt linear drive mechanisms such as cylinders, electric push rods, ball screw pairs, etc. A knotting clip 2 is arranged on the platform 1. The knotting clip 2 includes two clamping jaws 21. A rope winding clip 3 is arranged on the knotting clip 2. A rotating mechanism for driving the rope winding clip 3 to rotate around the knotting clip 2 is arranged on the platform 1. A moving mechanism for driving the rope winding clip 3 to move is arranged on the platform 1. An opening and closing mechanism for controlling the opening and closing of the knotting clip 2 is arranged on the platform 1. By lifting the platform 1, the knotting clip 2 and the rope winding clip 3 are driven to move up and down, so that the knotting clip 2 and the rope winding clip 3 are located inside the gift bag. The rotating mechanism and the moving mechanism drive the rope winding clip 3 to move up and down and rotate around the knotting clip 2. By controlling the opening and closing of the rope winding clip 3, the rope head part can be clamped. The opening and closing mechanism is used to control the opening of the knotting clip 2. The moving mechanism drives the rope winding clip 3 to move upward, and makes the rope head part higher than the bottom end of the clamping jaw 21. The rotating device drives the rope winding clip 3 to rotate around the knotting clip 2 for one circle. The moving mechanism drives the rope winding clip 3 to move upward, and the rotating device drives the rope winding clip 3 to continue to rotate around the knotting clip 2, so that the rope head part bypasses from above the rope and bypasses one of the clamping jaws 21. The moving mechanism drives the rope winding clip 3 to move downward, and the rotating device drives the rope winding clip 3 to continue to rotate around the knotting clip 2, so that the rope head part bypasses the bottom end of the other clamping jaw 21. The moving mechanism drives the rope winding clip 3 to move upward, and controls the rotating device to stop driving the rope winding clip 3 to rotate around the knotting clip 2. At this time, the rope head part is located between the clamping jaws. The opening and closing mechanism controls the two clamping jaws 21 to clamp the rope head part, and controls the rope winding clip 3 to loosen the rope head part. Finally, the platform 1 moves upward, and the knotting clip 2 can drive the rope head part to pass through the rope wound around the clamping jaw 21, thereby realizing knotting. Finally, the opening and closing mechanism controls the clamping jaw 21 to open. Compared with the prior art, the utility model can realize automatic knotting of the rope head in the narrow space of the gift bag, save labor costs and improve production efficiency.

[0030] The platform 1 can be lifted relative to the paper bag or the paper box, that is, the paper bag or the paper box can be kept stationary while the platform 1 is lifted; or the platform 1 can be kept stationary while the paper bag or the paper box is lifted. In this embodiment, the case where the paper bag or the paper box is kept stationary and the platform 1 is lifted is taken as an example for description. When the platform 1 is kept stationary and the paper bag or the paper box is lifted, the lifting of the paper bag or the paper box can also be realized by an actuator that can perform up and down movements in the prior art.

[0031] Such as Figures 1-3As shown, further preferably, the knotting clip 2 is of a connecting rod structure, and further includes two connecting rods 22, a housing 23, a sleeve 24, and a pull rod 25. The middle parts of the opposite surfaces of the two clamping jaws 21 are hingedly installed inside the housing 23. The lower end of the sleeve 24 is fixedly connected to the top of the housing 23 and fixedly connected. The tops of the clamping jaws 21 are respectively hingedly connected to one end of the connecting rods 22, and the other ends of the connecting rods 22 are all hingedly connected to the lower end of the pull rod 25. The pull rod 25 passes through the sleeve 24. The upper outer periphery of the sleeve 24 is fixedly connected to the gantry 1 through a connecting plate, and the upper end of the pull rod 25 is fixedly connected to the opening and closing mechanism. By pulling the upper end of the pull rod 25 through the opening and closing mechanism, the pull rod 25 can be driven to move up and down. The up and down movement of the pull rod 25 can drive the connecting rods 22 to move and rotate, and further drive the clamping jaws 21 to rotate, so that the clamping jaws 21 are opened or closed. The structure of the knotting clip 2 is simple and convenient to use and control. The opening and closing angle of the two clamping jaws 21 of the knotting clip 2 is 0-90°.

[0032] In other embodiments, the knotting clip 2 can also adopt a gear mechanism.

[0033] As Figure 1 shown, further preferably, the rope winding clip 3 is composed of a fixture 31, a moving frame 32, a spline hollow shaft 33, and a spline sleeve 34. The opening and closing of the fixture 31 is controlled by a gas source. The fixture 31 is fixedly installed on one side of the moving frame 32. The sleeve 24 passes through the moving frame 32 and the spline hollow shaft 33 and is in clearance fit. The spline sleeve 34 is installed on the gantry 1 through a bearing seat. The moving mechanism can drive the spline hollow shaft 33 to move up and down, and the rotating mechanism can drive the spline sleeve 34 to rotate. By the moving mechanism, the spline hollow shaft 33 can be driven to move up and down, and then the fixture 31 can be driven to move up and down through the moving frame 32. By the rotating mechanism, the spline sleeve 34 is driven to rotate. The rotation of the spline sleeve 34 can drive the spline hollow shaft 33 to rotate, and then the fixture 31 can be driven to rotate through the moving frame 32. The rope winding clip 3 can move up and down and can also rotate around the knotting clip 2, and the two functions do not affect each other. The fixture 31 can adopt a nozzle fixture or other fixtures with similar principles and functions.

[0034] As Figure 1 shown, further preferably, a linear bearing is arranged between the moving frame 32 and the bearing seat supporting the spline sleeve 34. The linear bearing can play a guiding role and does not affect the rotation of the moving frame 32.

[0035] As Figure 1As shown, further preferably, the rotating mechanism is composed of a rotating motor 41 and a rotating transmission pair, the rotating transmission pair includes a belt pulley transmission structure, a sprocket chain transmission structure, a gear transmission structure, a gear rack transmission structure and a worm gear transmission structure, etc. The rotating motor 41 is fixedly mounted on the stand 1, and the rotating transmission pair is arranged between the output shaft of the rotating motor 41 and the spline sleeve 34. When the rotating motor 41 is turned on, the rotation of the output shaft of the rotating motor 41 can drive the spline sleeve 34 to rotate through the rotating transmission pair. The rotating mechanism has a simple structure and is easy to use. In other embodiments, the output shaft of the rotating motor 41 and the spline sleeve 34 can also be connected by a belt or a gear.

[0036] like Figure 1 As shown, further preferably, the moving mechanism is composed of a moving motor 51, a moving pair 52 and a moving block 53, the moving pair 52 is composed of a screw and a nut with threaded matching, the moving motor 51 is fixedly mounted on the stand 1, the input end of the moving pair 52 is fixedly connected to the output shaft of the moving motor 51, the output end of the moving pair 52 is fixedly connected to the moving block, the spline hollow shaft 33 penetrates the moving block 53 and is rotatably connected, and the specific rotatable connection method is to connect through a bearing. Turn on the moving motor 51, the rotation of the output shaft of the moving motor 51 can drive the moving pair 52 to operate, and then the output end of the moving pair 52 can drive the moving block 53 to move up and down, and then can drive the spline hollow shaft 33 to move up and down, and will not affect the rotation of the spline hollow shaft 33. In other embodiments, the moving mechanism can also be implemented by other mechanisms such as cylinders and electric cylinders to achieve up and down movement.

[0037] like Figure 1 As shown, further preferably, the opening and closing mechanism is a cylinder 61, the fixed end of the cylinder 61 is fixedly mounted on the stand 1, and the output end of the cylinder 61 is fixedly connected to the upper end of the pull rod 25. The extension and retraction of the cylinder 61 can drive the pull rod 25 to move up and down, thereby controlling the opening and closing of the knotting clip 2, which is convenient to use. In other embodiments, the opening and closing mechanism can also adopt a cam, an electric cylinder, etc.

[0038] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0039] Except for the technical features described in the specification, the remaining technical features are well-known technologies to those skilled in the art. To highlight the innovative features of the present utility model, the remaining technical features will not be elaborated herein.

Claims

1. A rope threading and knotting device suitable for use in a narrow space, comprising a stand (1) capable of being raised and lowered relative to a paper bag or a paper box, wherein: A knotting clamp (2) is arranged on the platform (1), the knotting clamp (2) comprises two clamping claws (21), a rope winding clamp (3) is arranged on the knotting clamp (2), a rotating mechanism is arranged on the platform (1) for driving the rope winding clamp (3) to rotate around the knotting clamp (2), a moving mechanism is arranged on the platform (1) for driving the rope winding clamp (3) to move, and an opening and closing mechanism is arranged on the platform (1) for controlling the opening and closing of the knotting clamp (2).

2. A rope threading and knotting device suitable for a narrow space according to claim 1, characterized in that: The knotting clamp (2) is a connecting rod structure, comprising two connecting rods (22), a shell (23), a sleeve (24) and a pull rod (25). The middle parts of the opposite surfaces of the two clamping jaws (21) are hingedly installed in the shell (23). The lower end of the sleeve (24) is fixedly connected to the top of the shell (23) and fixedly connected. The top of the clamping jaw (21) is respectively hingedly connected to one end of the connecting rod (22), and the other end of the connecting rod (22) is hingedly connected to the lower end of the pull rod (25). The pull rod (25) passes through the sleeve (24). The upper periphery of the sleeve (24) is fixedly connected to the stand (1) through a connecting plate. The upper end of the pull rod (25) is fixedly connected to the opening and closing mechanism.

3. A rope threading and knotting device suitable for a narrow space according to claim 2, characterized in that: The rope winding clamp (3) is composed of a clamp (31), a movable frame (32), a spline hollow shaft (33) and a spline sleeve (34). The clamp (31) is fixedly mounted on one side of the movable frame (32). The sleeve (24) passes through the movable frame (32) and the spline hollow shaft (33) and is clearance-fitted therewith. The spline sleeve (34) is mounted on the frame (1) via a bearing seat. The movable mechanism can drive the spline hollow shaft (33) to move up and down, and the rotating mechanism can drive the spline sleeve (34) to rotate.

4. The rope threading and knotting device suitable for a narrow space according to claim 3 is characterized in that: A linear bearing is provided between the movable frame (32) and the bearing seat supporting the spline sleeve (34).

5. The rope threading and knotting device suitable for a narrow space according to claim 3, characterized in that: The rotating mechanism is composed of a rotating motor (41) and a rotating transmission pair. The rotating motor (41) is fixedly mounted on the frame (1), and the rotating transmission pair is arranged between the output shaft of the rotating motor (41) and the spline sleeve (34).

6. The rope threading and knotting device suitable for a narrow space according to claim 3, characterized in that: The moving mechanism is composed of a moving motor (51), a moving pair (52) and a moving block (53); the moving motor (51) is fixedly mounted on the frame (1); the input end of the moving pair (52) is fixedly connected to the output shaft of the moving motor (51); the output end of the moving pair (52) is fixedly connected to the moving block; and the spline hollow shaft (33) passes through the moving block (53) and is rotationally connected.

7. The rope threading and knotting device suitable for a narrow space according to claim 2, characterized in that: The opening and closing mechanism is a cylinder (61), the fixed end of the cylinder (61) is fixedly mounted on the stand (1), and the output end of the cylinder (61) is fixedly connected to the upper end of the pull rod (25).

8. The rope threading and knotting device suitable for a narrow space according to claim 2, characterized in that: The opening and closing angles of the two clamping jaws (21) of the knotting clamp (2) are 0 to 90 degrees.

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