An assembly of a frame cable tie guide rail, guide claw, and tensioning mechanism for an automatic cable tie tool.

Abstract

An automatic cable tie tool includes a frame, cable tie guide rail, guide claw, and tensioning mechanism assembly, comprising: a frame, a cable tie guide rail, a guide claw mechanism, and a tensioning mechanism; the frame has a U-shaped groove for guiding the cable ties, and a recess for positioning the cable tie head, the recess being rectangular or square; the recess on the frame has a rectangular hole located in the center of the recess, the hole allowing the cable tie tail to pass through and enter the tensioning mechanism; the cable tie guide rail is mounted adjacent to the frame, and has a square guide channel matching the shape of the cable tie head, the square guide channel of the cable tie guide rail communicating with one end of the U-shaped groove in the frame; the guide claw mechanism includes at least two guide claws, at least one of the at least two guide claws or each guide claw having a U-shaped guide groove; the tensioning mechanism includes: an active center tensioning wheel, an auxiliary tensioning wheel, and a transmission gear.

Description

Technical Field

[0001] This invention relates to a working head of a tool, and more particularly to a combination of a frame cable tie guide rail, guide claw, and tensioning mechanism for an automatic cable tie tool. Background Technology

[0002] For the automatic bundling of ordinary nylon cable ties, there is a desktop cable tie machine design in China. This machine has the following drawbacks: the machine is stationary, only the workpiece can be moved, making it inflexible in use; due to space limitations, it cannot be used for on-site or internal construction of pipelines, tunnels, or overhead cables in aircraft, ships, trains, automobiles, home appliances, and communication equipment; the desktop cable tie machine also has some design flaws, making it inconvenient and unreliable to use; moreover, most desktop automatic cable tie machines on the market use five motors, wasting parts and resulting in a bulky size; foreign countries have... Automatic cable tie guns using integrated cable ties are available, but foreign automatic cable tie guns require expensive, specialized integrated cable ties, resulting in high operating costs. Furthermore, foreign integrated automatic cable tie guns are bulky and essentially only suitable for bundling wire harnesses. I have designed a "handheld automatic cable tie tool" that separates the gun head from the main unit, connecting them via a conduit. Compared to desktop automatic cable tie machines, it significantly expands its application range and practical flexibility; compared to foreign integrated automatic cable tie guns, it greatly reduces operating costs. Although the aforementioned "handheld automatic cable tie tool" has clear advantages over desktop and integrated automatic cable tie machines, it still encounters many difficulties in practical application, such as: 1. requiring the cable tie to pass through a small hole or narrow space in the bundled part; 2. requiring the cable tie to pass through two small holes in the bundled part before bundling; 3. situations where there is insufficient space around the bundled part… Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing automatic cable ties machines or tools on the market by designing a combination of a frame cable tie guide rail, guide claw, and tensioning mechanism that can meet various different usage needs.

[0004] This invention is achieved through the following technical solution: an automatic cable tie tool working head, comprising a face shell, a frame, a cable tie guide rail, a cycle control mechanism, a guide claw mechanism, a tensioning mechanism, a cutter, and a cutter drive mechanism; the frame is installed in the face shell, the frame has a recess for positioning the cable tie head, and a U-shaped groove for guiding the cable tie; the cable tie guide rail has a guide channel with a square or trapezoidal cross-sectional shape matching the shape of the cable tie head, the square guide channel of the cable tie guide rail is connected to one end of the U-shaped groove in the frame, the guide claw mechanism has a U-shaped groove, and when the guide claw mechanism is closed with the frame, the guide claw... The U-shaped groove of the mechanism communicates with the U-shaped groove in the frame to form a closed U-shaped groove guide ring, or the U-shaped groove of the guide claw mechanism and the U-shaped groove in the frame communicate with the surface of the bundled part to form a closed guide ring. The symmetrical center planes of the U-shaped groove of the guide claw mechanism and the U-shaped groove in the frame are both located in the center plane of the working head of the automatic cable tie tool. The tensioning mechanism is mounted on the frame, the cutter is mounted on the frame and located between the cable tie head and the tensioning wheel, the cutter drive mechanism is connected to the cutter and drives the cutter to cut the cable tie, and the cycle control mechanism directly or indirectly drives the tensioning mechanism.

[0005] Furthermore, the frame may be a single integral part or may be divided into two or more parts and fixedly connected by screws. The frame is used to install cable tie guides, a cycle control mechanism, a tensioning mechanism, a cutter, and a cutter drive mechanism.

[0006] Furthermore, the frame or disassembled parts have window parts. By removing the window parts, the parts of the tensioning mechanism can be seen, which facilitates the cleaning of debris stuck to the parts of the tensioning mechanism. The window parts are also one of the mounting ends of the tensioning mechanism.

[0007] Furthermore, the frame has recesses, which are rectangular or square depressions. These recesses, together with the end face of one of the guide claws of the guide claw mechanism, restrict the six degrees of freedom of the cable tie head. Alternatively, the end face of the guide claw does not directly contact the cable tie head, but rather uses the bundled part between the end face of the guide claw and the cable tie head to restrict the position of the cable tie head. The end face of one of the guide claws of the guide claw mechanism acts on the bundled part, and indirectly restricts the six degrees of freedom of the cable tie head together with the recesses.

[0008] Furthermore, the recess on the frame has a rectangular hole located in the center of the recess, which allows the end of the cable tie to pass through and enter the tensioning mechanism.

[0009] Furthermore, the guide channel of the cable tie guide rail has four guide surfaces. The cross-sectional shape of the guide channel formed by the four guide surfaces is square. Each of the four guide surfaces matches four of the six faces of the cable tie head's outline or an edge on one of the four faces of the cable tie head, guiding the cable tie's movement. The length direction of the guide channel of the cable tie guide rail is the cable tie's movement trajectory, i.e., the direction of cable tie movement. The cable tie guide rail is arranged such that the cable tie's movement trajectory is located within the center plane of the working head of the automatic cable tie tool, or that the cable tie's movement trajectory is perpendicular to the center plane of the working head of the automatic cable tie tool. When the length direction of the guide channel of the cable tie guide rail (i.e., the cable tie movement trajectory) is located within the center plane of the working head of the automatic cable tie tool, both the cable tie head and the cable tie body are restricted to move within the guide channel of the cable tie guide rail. That is, the cable tie guide rail "longitudinally" transports the cable tie into the U-shaped groove of the frame. When the length direction of the guide channel of the cable tie guide rail (i.e., the cable tie movement trajectory) is perpendicular to the center plane of the working head of the automatic cable tie tool, only the cable tie head is restricted within the U-shaped groove of the cable tie guide rail, and the length direction of the cable tie is perpendicular to the length direction of the guide rail. The cable tie guide rail "laterally" transports the cable tie to the center plane of the working head of the automatic cable tie tool.

[0010] Furthermore, the length direction of the guide channel of the cable tie guide rail (i.e., the cable tie movement trajectory) is either a straight line or a curve.

[0011] Furthermore, when the length direction of the guide channel of the cable tie guide rail (i.e., the cable tie movement trajectory) is curved, and the length direction of the guide channel of the cable tie guide rail (i.e., the cable tie movement trajectory) is perpendicular to the center plane of the working head of the automatic cable tie tool, it means that at least the end of the guide channel of the cable tie guide rail is perpendicular to the center plane of the working head of the automatic cable tie tool.

[0012] Furthermore, the most basic design of the guide claw mechanism includes at least two guide claws, namely a first guide claw and a second guide claw, both of which have U-shaped grooves; or the first guide claw and the second guide claw are combined to form a U-shaped groove, that is, the first guide claw provides only one surface for guiding the cable tie movement, serving as the bottom of the U-shaped groove, while the second guide claw provides two sides; when the second guide claw and the first guide claw are closed, the U-shaped grooves of the first guide claw, the second guide claw, and the U-shaped groove of the frame are connected end to end to form a closed U-shaped groove guide ring, one end of the second guide claw and the recess in the frame work together to restrict the six degrees of freedom of the cable tie head, and the movement of the first guide claw shortens the circumference of the U-shaped guide ring, allowing the tail of the cable tie to pass through the hole in the cable tie head.

[0013] Furthermore, the first guide claw may be split into: a first stationary guide claw and a first hooking guide claw.

[0014] Furthermore, the second guide pawl may be split into: a second moving guide pawl and a second stationary guide pawl; or it may be split into a second swinging guide pawl and a second sliding guide pawl.

[0015] Furthermore, any part of the first guide claw, the second guide claw, or the motion guide claw split from the first guide claw or the second guide claw is either driven by a cylinder, driven by a motor to drive a cam or a motor to drive a connecting rod, or driven by a manual trigger to perform translational or swinging motion.

[0016] The cable tie guide rail transports cable ties one by one into the guide claw mechanism for positioning. The feeding direction of the cable tie guide rail is to transport the cable ties laterally in a direction perpendicular to the symmetrical center plane of the U-shaped groove of the guide claw mechanism. The lateral transport of cable ties by the cable tie guide rail is mainly used to realize desktop bundling; or the feeding direction of the cable tie guide rail is to transport the cable ties longitudinally into the guide claw mechanism for positioning within the symmetrical center plane of the U-shaped groove of the guide claw mechanism.

[0017] Furthermore, when the working head of the automatic cable tie tool is used to achieve desktop binding, since the cable tie is fed laterally, there is an angular error between the symmetrical center plane of the cable tie and the symmetrical center plane of the U-shaped groove of the guide claw mechanism. In order to reduce the influence of the angular error, the two sides of the U-shaped groove of the first guide claw of the guide claw mechanism are made into bevels, i.e., flared mouths.

[0018] The tensioning mechanism includes: an active center tensioning wheel, auxiliary tensioning wheels, and transmission gears; the number of active center tensioning wheels is at least one, and at least one transmission gear is coaxially fixed to the active center tensioning wheel; the number of auxiliary tensioning wheels is one, two, or more. When two or more auxiliary tensioning wheels are used around the active center tensioning wheel, the two or more auxiliary tensioning wheels are arranged along the circumference of the active center tensioning wheel, and the two or more auxiliary tensioning wheels cause the cable tie to wrap around the circumference of the active center tensioning wheel to form a certain wrap angle, which can provide greater tension force.

[0019] Furthermore, the at least one auxiliary tensioning wheel and the active center tensioning wheel are designed with a fixed center distance, or a spring is designed to pull or press the at least one auxiliary tensioning wheel toward the active center tensioning wheel.

[0020] Furthermore, each of the auxiliary tensioning wheels is also coaxially fixedly connected to the transmission gear, so that each of the auxiliary tensioning wheels has power input.

[0021] Furthermore, the cycle control mechanism is a combination of a cycle gear and a sensor. External power is input from the cycle gear, and the sensor is positioned in the axial direction of the cycle gear. There is a gap between the sensor and the cycle gear in the axial direction. The cycle gear has at least one magnet, one protrusion, or one hole. The sensor detects that the cycle gear has rotated N revolutions or 1 / N revolutions (N is a positive integer; generally, N is 1, 2, 3, or 4, and N is at least 1). The sensor sends a signal to control the external power input to stop, thus completing one cable tie working cycle. Alternatively, the cycle control mechanism may be a combination of a rack and a gear. The rack drives the gear to drive the tensioning mechanism. The rack drives the gear to move in one direction, completing one cable tie working cycle. The rack then returns to its original position in the opposite direction.

[0022] Furthermore, the periodic gear of the periodic control mechanism directly meshes with the transmission gear of the tensioning mechanism. When the periodic gear rotates at a fixed angle, causing the transmission gear to rotate a fixed number of times, i.e., when the active center tensioning wheel rotates a fixed circumference, the cam coaxially fixed with the periodic gear drives the cutter to cut the cable tie, achieving a "fixed length" cut. Alternatively, a "three-terminal input / output mechanism" is added directly between the periodic gear and the transmission gear. The three-terminal input / output mechanism includes: an adjusting screw, a vernier, an adjusting spring, a planetary gear base, internal and external gears, and a sun gear. The periodic gear meshes with the sun gear, and the external gear rings of the internal and external gears mesh with the transmission gear of the tensioning mechanism. Rotating the adjusting screw controls the pre-tightening force of the adjusting spring on the planetary gear base. When the torque generated by the tensioning force of the tensioning mechanism on the cable tie is equal to or greater than the torque of the pre-tightening force of the adjusting spring on the planetary gear base, the planetary gear base rotates and drives the cutter to cut the cable tie, achieving a "fixed torque" cut.

[0023] Furthermore, when the "fixed length" cutting method is used, the cam coaxially fixed with the periodic gear is the cutter drive mechanism; when the "fixed torque" cutting method is used, the "three-terminal input / output mechanism" is the cutter drive mechanism; or when the periodic gear rotates to a certain fixed position (before completing a cable tie binding cycle), a mechanical or electrical signal is obtained, and a cylinder or an added motor-driven crank connecting rod or gear rack is used as the cutter drive mechanism to drive the cutter to cut the cable tie.

[0024] The working head of the automatic cable tie tool can be used as a handheld tool, or a bracket can be added to fix the face shell of the working head of the automatic cable tie tool to the bracket with screws to use it as a fixed cable tie tool.

[0025] Furthermore, the working head of the automatic cable tie tool is fixed on the bracket, and the first guide claw of the guide claw mechanism is split into a first relatively stationary guide claw and a first relatively moving guide claw. The second guide claw performs a translational motion to realize the automatic binding operation of the cable tie passing through one hole of the workpiece being bound or passing through a small space of the workpiece being bound.

[0026] Furthermore, the working head of the automatic cable tie tool is fixed on the bracket, and the guide claw mechanism performs translational motion or swings around a fixed axis. The first guide claw swings relative to the second guide claw to realize the automatic binding operation of the cable tie passing through the two holes of the workpiece being bound.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. Compared with manual operation, it greatly improves the efficiency of automatic cable ties and significantly reduces the labor intensity of workers;

[0029] 2. A core basic design is provided, which can be used in desktop cable tie machines with only slight changes to the layout of the guide rail. The desktop cable tie machine designed based on this invention has a much simpler structure than the traditional desktop cable tie machine design with 5 motors. The simplified structure can make the output action respond quickly and improve the reliability of the equipment.

[0030] 3. It provides a core basic design and offers a variety of different guide claw mechanism design combinations and different guide claw installation methods, so that the present invention can be used as a handheld cable tie tool or a fixed cable tie machine. It can also realize various application requirements that existing cable tie tools cannot achieve, such as "cable tie passing through a single hole of the bundled part", "cable tie passing through two holes of the bundled part" and "cable tie passing through a small gap of the bundled part", which greatly expands the adaptability to different bundled parts and greatly expands the application range of automatic cable tie tools.

[0031] 4. This invention also provides different "tension-cut" logical relationships and design methods such as "constant torque" and "constant length", providing different options for different tension force requirements of the bundled workpiece, different tension-cut response modes, and internal space layout design of the automatic cable tie tool. Attached Figure Description

[0032] Figure 1 This is a top view of the invention, used as a handheld cable tie tool;

[0033] Figure 2 This is the front view of the invention, used as a handheld cable tie tool;

[0034] Figure 3This is the front view of the invention, with one shell, frame, and other parts removed;

[0035] Figure 4 Is with Figure 1 In the corresponding AA sectional view, the guide claw mechanism is in the open state;

[0036] Figure 5 Is with Figure 1 In the corresponding AA sectional view, the guide claw mechanism is in a closed state;

[0037] Figure 6 This is the front view of the present invention, and... Figure 1 The corresponding partial sectional view of AA has one shell and a periodic control mechanism removed;

[0038] Figure 7 This is the main view of the present invention, with one shell and periodic control mechanism removed, and the guide claw mechanism in the open state;

[0039] Figure 8 Is with Figure 7 The corresponding CC section view is enlarged to show the U-shaped groove design of the guide claw mechanism;

[0040] Figure 9 Is with Figure 3 The corresponding enlarged BB section view shows the design of the cable tie guide rail;

[0041] Figure 10 This is a rear view of the present invention;

[0042] Figure 11 It is an isometric drawing of the frame, showing the frame's U-shaped grooves, recesses, and window parts;

[0043] Figures 12-13 This is the main view of the present invention, with one faceplate and periodic control mechanism removed; both the first and second guide claws are cam-driven, and the guide claws are in open and closed states respectively;

[0044] Figures 14-15 This is the main view of the present invention. One faceplate is removed. The first and second guide claws are driven by cylinders, and the guide claws are in the open and closed states, respectively.

[0045] Figure 16 This is the front view of the present invention, and... Figure 1 In the corresponding partial sectional view of AA, one shell is removed, and the second guide claw is split into a second swing guide claw and a second sliding guide claw.

[0046] Figure 17 This is the main view of the present invention, with one shell and cycle control mechanism removed, and the cutter driven by a cylinder.

[0047] Figure 18This is the main view of the present invention, with one faceplate and periodic control mechanism removed. The first guide claw is driven by a cam, and the second guide claw is driven by a cylinder.

[0048] Figures 19-20 This is the main view of the invention, with one shell, frame, and cycle control mechanism removed; it shows the cam driving the cutter via a rocker arm, with the guide claws in closed and open states respectively;

[0049] Figure 21 This is an isometric view of the invention mounted on a bracket. The second guide claw is fixed to the extended end of the cylinder to achieve "the cable tie passing through a single hole of the bundled part". The guide claw is in the open state.

[0050] Figure 22 This is an isometric view of the invention mounted on a bracket. The second guide claw is mounted on the extended end of the cylinder to achieve "the binding of the cable tie through a single hole of the part being bound", showing the state of the part being bound.

[0051] Figure 23 This is a top view of the invention mounted on a bracket, used for "bundling of the cable tie through a single hole of the bundled part";

[0052] Figure 24 This is a front view of the invention mounted on the bracket, and... Figure 23 The corresponding DD partial section view is used for "tying the cable tie through a single hole of the bundled part", with the guide claw in a closed state;

[0053] Figure 25 This is an isometric view of the invention mounted on a bracket. The first guide claw and the second guide claw are both mounted on the extended end of the cylinder to achieve "the cable tie passing through the two holes of the bundled part". The guide claw is in the open state.

[0054] Figure 26 This is a top view of the invention mounted on a bracket, used for "tying of the cable tie through one or two holes of the bundled part";

[0055] Figure 27 This is a front view of the invention mounted on the bracket, and... Figure 26 The corresponding partial EE section view is used for "tying the cable tie through the two holes of the bundled part", with the guide claw in the open state;

[0056] Figure 28 This is a front view of the invention mounted on the bracket, and... Figure 26 The corresponding partial EE section view is used for "tying the cable tie through the two holes of the bundled part". The guide claw is in the closed state, showing the cable tie passing through the two holes of the bundled part.

[0057] Figure 29 This is a front view of the invention mounted on the bracket, and... Figure 26 The corresponding partial EE section view shows the "bundling of the cable tie through the two holes of the bundled part". The second guide claw is in a hooking state and the cable tie is gripped by the tensioning mechanism.

[0058] Figure 30 This is a top view of the invention mounted on a bracket, used for "tying the cable ties through the narrow space of the bundled parts";

[0059] Figure 31 This is a front view of the invention mounted on the bracket, and... Figure 30 Correspondingly, the first guide claw and the second guide claw are each split into two parts, which are used for "tying the cable tie through the narrow space of the bundled part", and the guide claw is in the open state;

[0060] Figure 32 Is with Figure 30 In the corresponding FF sectional view, the first guide claw and the second guide claw are each split into two parts, which are used for "tying the cable tie through the narrow space of the bundled part", and the guide claws are in a closed state.

[0061] Figure 33 Is with Figure 30 The corresponding enlarged partial sectional view of FF shows the action of the first hook guide claw;

[0062] Figure 34 Is with Figure 30 In the corresponding FF sectional view, the first guide claw and the second guide claw are respectively separated into two parts, and the coil of the motor stator is in the bundled state;

[0063] Figure 35 This is a top view of the invention mounted on a bracket, used for "tying the cable ties through the narrow space of the bundled parts";

[0064] Figure 36 This is a front view of the invention mounted on the bracket, and... Figure 35 The corresponding GG partial section view is used for "tying the cable tie through the narrow space of the bundled part". There is a gap when the first guide claw and the second guide claw are closed. The guide claw and the surface of the bundled part (silicon steel sheet of motor stator) work together to guide the cable tie.

[0065] Figure 37 This is a front view of the invention mounted on the bracket, and... Figure 35 The corresponding GG partial section view is used for "tying the cable tie through the narrow space of the bundled parts", and the coil of the motor stator is in the bundled state;

[0066] Figure 38 This is an isometric view of the invention mounted on a bracket, used as a fixed cable tie tool;

[0067] Figure 39 This is a top view of the invention mounted on a bracket, used as a fixed cable tie tool;

[0068] Figure 40 This is a front view of the invention mounted on the bracket, and... Figure 39 Correspondingly, the second guide claw is driven by a cylinder built into the face shell;

[0069] Figure 41 Is with Figure 39 The corresponding HH section view;

[0070] Figure 42 Is with Figure 39 Corresponding section view II;

[0071] Figure 43 The present invention itself is a handheld cable tie tool, mounted on a bracket, and uses a cylinder-triggered trigger for use as a fixed cable tie tool.

[0072] Figure 44 This is an isometric drawing of the present invention, applied to a desktop cable tie machine;

[0073] Figure 45 Is with Figure 44 The corresponding enlarged view of the T region;

[0074] Figure 46 Is with Figure 44 The corresponding top view;

[0075] Figure 47 Is with Figure 46 The corresponding LL section view;

[0076] Figure 48 Is with Figure 47 The corresponding enlarged view of N;

[0077] Figure 49 Is with Figure 46 Corresponding MM section view;

[0078] Figure 50 Is with Figure 46 Corresponding JJ section view;

[0079] Figure 51 Is with Figure 46 The corresponding right view;

[0080] Figure 52 Is with Figure 46 Corresponding KK section view;

[0081] Figure 53 Is with Figure 52 The corresponding OO sectional view shows the bevel design on both sides of the U-shaped groove of the first guide claw;

[0082] Figure 54 Is with Figure 1 The corresponding AA sectional view shows a "constant torque" cutting method with only one auxiliary tensioning wheel.

[0083] Figure 55 This is an isometric view of a tensioning mechanism, showing two auxiliary tensioning wheels arranged around the circumference of the central active tensioning wheel, and each of the two auxiliary tensioning wheels is driven by a transmission gear.

[0084] Figure 56 , Figure 57 These are isometric views of the "constant torque" cutting design from different perspectives, showing the transmission from the periodic gear to the tensioning mechanism;

[0085] Figure 58 Is with Figure 3 The corresponding enlarged BB cross-sectional view shows that the cable tie guide rail is a combination of a U-shaped groove arc plate for the feeding roller.

[0086] Special Note:

[0087] In the above figure, AA, EE, FF, GG, HH, and KK are the center planes of the working head of the automatic cable tie tool, and also the symmetrical center planes of the U-shaped groove of the guide claw mechanism 5; MM and KK are the symmetrical center planes of the cable tie 06; the U-shaped groove mentioned in the context refers to an unsealed square groove or an unsealed trapezoidal groove formed by three connected surfaces, and the square can be a square or a rectangle; the "closed" U-shaped groove guide ring mentioned in the context does not mean that the connection of each U-shaped groove is seamless, and gaps are allowed at the joints without causing instability in the cable tie movement.

[0088] Reference numerals: 01. Working head of an automatic cable tie tool; 02. Support; 03. Workpiece with one hole (part to be bundled); 04. Workpiece with two holes (part to be bundled); 05. Motor stator (part to be bundled); 06. Cable tie; 07. Trigger-triggered cylinder; 08. Trigger pressure plate; 1. Face shell; 2. Frame; 210. Frame body; 220. Frame cover plate; 230. Mounting plate; 211. Recess; 212. Small hole; 213. U-shaped groove; 220. Frame cover plate; 2201. Window part; 231. Correcting block; 2311. Lateral correction direction; 2312. Longitudinal correction direction; 3. Cable tie guide rail; 30. Ratchet feeding device; 301. Ratchet; 302. Clutch shaft; 303. Spring; 304. Friction plate; 305. Adjusting nut; 309. Motor and gearbox; 4. Periodic control mechanism; 401. Periodic gear; 402. Sensor; 403. Magnet or protrusion or hole; 5. Guide claw mechanism; 51. First guide claw; 5101. First hooking guide claw; 5102. First stationary guide claw; 5201. Second moving guide claw; 5202. Two stationary guide pawls; 511, first guide pawl rotation center pin; 512, first guide pawl drive pin; 513, shift fork lever; 514, shift fork lever center pin; 515, connecting rod; 516, connecting rod center pin; 517, driven roller; 518, connecting rod return spring; 52, second guide pawl; 5201, second moving guide pawl; 5202, second stationary guide pawl; 5203, second swinging guide pawl; 5204, second sliding guide pawl; 5205, guide pawl return spring; 521, second guide pawl center pin; 522. 523. Trigger linkage; 524. Trigger; 525. Trigger return spring; 531. First guide pawl cylinder; 532. Cylinder mounting pin; 541. Guide rail; 542. Second guide pawl cylinder; 551. Driven roller; 552. Cam; 6. Tensioning mechanism; 611. Active center tensioning wheel; 612. Active center tensioning shaft; 621. Auxiliary tensioning wheel; 622. Auxiliary tensioning shaft; 623. Support plate; 624. Support plate center pin; 625. Tensioning force adjusting spring; 626. Tensioning force adjusting screw 7. Nail; 8. Cutter; 9. Cutter drive mechanism; 10. A three-terminal input / output mechanism; 11. Adjusting screw; 12. Vernier; 13. Adjusting spring; 14. Planetary gear; 15. Planetary gear base; 16. Sun gear; 17. Internal and external gears; 18. Pin; 19. Cam; 10. Lever; 11. Lever center pin; 12. Cutter return spring; 13. Cylinder; 14. Cutter drive pin; 15. Motor and gearbox; 16. Electrical control board; 17. Data cable; 18. Feeding tube; Detailed Implementation

[0089] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0090] Example 1 (Overall Structure and Function):

[0091] like Figure 1 , Figure 2 , Figure 3 As shown: A working head of an automatic cable tie tool includes a face shell 1, a frame 2, a cable tie guide rail 3, a cycle control mechanism 4, a guide claw mechanism 5, a tensioning mechanism 6, a cutter 7, and a cutter drive mechanism 8; Figures 1 to 7 As shown: Also included are a motor and gearbox 9, an electrical control board 10, a data cable 11, and a feeding tube 12. The electrical control board 10, data cable 11, and feeding tube 12 are mounted on the housing 1. The frame 2 is installed in the housing 1. The frame 2 has a recess 211 for positioning the cable tie head and a U-shaped groove for guiding the cable tie. The cable tie guide rail 3 has a square guide channel matching the shape of the cable tie head. The square guide channel of the cable tie guide rail 3 is connected to one end of the U-shaped groove in the frame. The guide claw mechanism 5 has a U-shaped groove. When the guide claw mechanism 5 is closed with the frame 2, the U-shaped groove in the frame 2 and the U-shaped groove of the guide claw mechanism 5 connect to form a closed guide ring. Calculated from the bottom of the U-shaped groove, the circumference of the guide ring is equal to or greater than the length of the cable tie. The U-shaped groove of the guide claw mechanism 5 and the symmetrical center plane of the U-shaped groove in the frame are both located in the center plane of the working head of the automatic cable tie tool. The tensioning mechanism 6 is composed of multiple tensioning wheels. The tensioning mechanism 6 is mounted on the frame 2. The cutter 7 is mounted on the frame 2 and located between the cable tie head and the tensioning wheels. The cutter drive mechanism 8 is connected to the cutter 7 to provide cutting power to the cutter 7. The motor, the gearbox 9 and the cycle control mechanism 4 are mounted on the disassembled parts mounting plate 230 of the frame 2. The cycle control mechanism 4 drives the tensioning mechanism 6 through gears.

[0092] Work process: such as Figures 1 to 7 , Figure 28 , Figure 29As shown: When the working head 01 of the automatic cable tie tool receives a trigger signal (the trigger signal comes from a trigger, a foot switch, a sensor switch, or a signal from an external device), the cable tie passes through the cable tie guide rail 3 and is guided into the guide claw mechanism 5 through the U-shaped groove of the frame 2. When the cable tie head enters the recess 211 of the frame 2, the end of the second guide claw 52 of the guide claw mechanism 5, together with the recess 211, restricts the six degrees of freedom of the cable tie head. The cable tie body is coiled into a loop within the U-shaped groove of the frame 2 and the U-shaped groove of the guide claw mechanism 5. At the same time, the motor is started, and the motor and the reduction gearbox 9 drive the cycle control mechanism 4. The periodic gear 401 rotates and drives the tensioning mechanism 6. The first guide claw 51 hooks, causing the effective circumference of the guide ring to shorten, forcing the tail of the cable tie to pass through the hole at the head of the cable tie and enter the tensioning mechanism 6. After the tensioning mechanism 6 tightens the cable tie, the cutter drive mechanism 8 drives the cutter 7 to cut the cable tie. The tensioning mechanism 6 rolls out the cut cable tie tail. After the sensor 402 of the periodic control mechanism 4 detects that the periodic gear 401 has rotated N times or 1 / N times (N is a positive integer, N is generally 1 or 2), the electrical control board 10 controls the motor, gearbox 9 and pneumatic components to stop moving or reset to complete one binding cycle. The electrical control board 10 can be external.

[0093] Example 2 (Regarding the frame structure):

[0094] like Figure 4 , Figure 5 , Figure 11 As shown: The frame 2 is disassembled into a frame body 210, a frame cover plate 220, and a mounting plate 230, which are fixedly connected by screws. The cycle control mechanism 4, the motor and gearbox 9, and the cutter drive mechanism 8 are mounted on the mounting plate 230. The tensioning mechanism 6 and the cutter 7 are mounted in the assembly of the frame body 210 and the frame cover plate 220. The cable tie guide rail 3 is mounted on the frame 2. If electrical discharge machining is used, the frame body 210 and the frame cover plate 220 can be combined into a single part; if machining difficulty is not a concern, the mounting plate 230 can also be integrated with the frame.

[0095] like Figure 11As shown: The frame body 210 has a recess 211 for positioning the head of the cable tie. A rectangular hole 212 within the recess 211 allows the tail of the cable tie to pass through and enter the tensioning mechanism 6. The outer edge of the frame body 210 and frame cover 220, when combined, has a U-shaped groove 213 for guiding the cable tie. The frame cover 220 has a window part 2201. Disassembling the window part 2201 allows for cleaning debris adhering to the tensioning mechanism 6. One end of the tensioning mechanism 6 is mounted on the window part 2201. If the frame cover 220 does not have a window part 2201, a large number of parts need to be disassembled to clean the debris adhering to the tensioning mechanism 6. Figure 10 , Figure 11 As shown, due to differences in structural design and layout, the window component 2201 is slightly different.

[0096] like Figure 44 , Figure 45 , Figure 46 As shown: The frame body 210 and the guide rail body 31 are the same part. The length direction of the guide channel of the cable tie guide rail 3 (i.e., the cable tie movement trajectory) is perpendicular to the center plane of the working head 01 of the automatic cable tie tool. The cable tie guide rail 3 "laterally" transports the cable tie to the center plane of the working head 01 of the automatic cable tie tool. In order to allow the cable tie to enter the U-shaped groove of the guide claw mechanism 5, one side of the U-shaped groove on the frame body 210 is omitted. As an alternative, a straightening block 231 is installed on the frame 2. The straightening block 231 is lower than the bottom surface of the U-shaped groove on the frame body 210 before the cable tie 06 enters the center plane KK of the working head 01 of the automatic cable tie tool. After the cable tie 06 enters the center plane KK of the working head 01 of the automatic cable tie tool, the straightening block 231 presses down. Figure 45 The arrows shown in 2311 or 2312 are aligned with the direction of the cable ties.

[0097] Example 3: (Regarding the functional structure of the guide claw)

[0098] like Figures 2 to 7 As shown: The most basic design of the guide claw mechanism 5 includes at least two guide claws, namely a first guide claw 51 and a second guide claw 52 (when the cable tie is conveyed from the cable tie guide rail 3 and fed into the guide claw mechanism 5, the one whose U-shaped groove contacts the cable tie first is called the first guide claw 51, and the one whose U-shaped groove contacts the cable tie later is called the second guide claw 52). Figure 4 , Figure 5 , Figure 6 , Figure 8 As shown: The first guide claw 51 and the second guide claw 52 have U-shaped grooves, such as... Figure 5As shown: When the second guide claw 52 closes with the first guide claw 51, the U-shaped grooves of the first guide claw 51, the second guide claw 52, ​​and the U-shaped groove of the frame 2 are connected end to end to form a closed U-shaped groove guide ring. At this time, the sum of the circumferences of the bottom surfaces of the U-shaped grooves of the first guide claw 51, the second guide claw 52, ​​and the frame 2 is equal to or greater than the length of the cable tie. The cable tie is bent into a circle within the guide ring; Figure 6 As shown: The first guide claw 51 oscillates around the first guide claw rotation center pin 511, causing the effective circumference of the guide ring to shorten. Because the cable tie head is restricted, the cable tie tail is forced to pass through the hole in the cable tie head and enter the tensioning mechanism 6; or as... Figure 36 As shown: After the guide claw mechanism 5 is closed, the U-shaped groove of the guide claw mechanism 5 and the U-shaped groove of the frame 2 are connected but not closed. A closed guide ring is formed by the surface combination of the bundled part (motor stator 05). At this time, the sum of the lengths of the bottom of the U-shaped groove of the guide claw mechanism 5 (including the first swing guide claw 5101, the first stationary guide claw 5102, and the second guide claw 52) and the bottom of the U-shaped groove of the frame 2 plus a section of the bundled part (motor stator 05) is equal to or greater than the length of the bundled cable tie. This design of connected but not closed U-shaped grooves is equivalent to the aforementioned "closed U-shaped groove guide ring". Working process: When the cable tie is fed into the guide claw mechanism 5, it first contacts the first guide claw 51 and is guided within the U-shaped groove of the first guide claw 51, then enters the U-shaped groove of the second guide claw 52 for further guidance.

[0099] Furthermore, such as Figures 25 to 29 As shown: the U-shaped groove of the guide claw mechanism 5 is entirely formed on the second guide claw 52, ​​meaning the first guide claw 51 has no U-shaped groove; the first guide claw 51 only provides one surface for guiding the cable tie movement, serving as the bottom of the U-shaped groove. The second guide claw 52 provides two side surfaces. Thus, the first guide claw 51 and the second guide claw 52 together form the U-shaped groove of the guide claw mechanism 5. Figure 28 As shown: The circumference of the "closed U-shaped groove guide ring" is greater than or equal to the length of the cable tie.

[0100] Furthermore, such as Figure 5 , Figure 6 As shown: In the guide claw mechanism 5, of the at least two guide claws, the first guide claw 51 has two basic functions: first, to guide the cable tie; second, after the first guide claw 51 is hooked, the circumference of the "closed U-shaped groove guide ring" is shortened so that the tail of the cable tie can be threaded into the head of the cable tie and enter the tensioning mechanism 6; as shown. Figure 5 , Figure 6 , Figure 24 , Figure 28 , Figure 29As shown: The second guide claw 52 also has two basic functions: one is to guide the cable tie, and the other is that one end of the second guide claw 52, ​​together with the recess 211 in the frame 2, restricts the six degrees of freedom of the cable tie head; as shown Figure 24 , Figure 28 , Figure 29 As shown: One end of the second guide claw 52 does not directly contact the cable tie head, but the end of the second guide claw 52 presses against the workpiece 03 with one hole or the workpiece 04 with two holes. The workpiece 03 with one hole or the workpiece 04 with two holes, together with the recess 211 in the frame 2, restricts the six degrees of freedom of the cable tie head. In the application of the workpiece 03 with one hole or the workpiece 04 with two holes, the end of the second guide claw 52 indirectly works together with the recess 211 in the frame 2 to restrict the six degrees of freedom of the cable tie head.

[0101] Furthermore, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 10 , Figures 12 to 15 As shown: The guide claw mechanism 5 includes two guide claws (i.e., a first guide claw 51 and a second guide claw 52); in Figure 16 In order to facilitate the layout of the parts, the second guide claw 52) is split into a second swing guide claw 5203 and a second sliding guide claw 5204; as shown Figures 30 to 34 As shown: The first guide claw 51 is split into: a first hooking guide claw 5101 and a first stationary guide claw 5102; the second guide claw 52 is split into: a second moving guide claw 5201 and a second stationary guide claw 5202. The purpose of the split is to avoid motion interference. The combination of the first hooking guide claw 5101 and the first stationary guide claw 5102 is equivalent to the first guide claw 51, and the first hooking guide claw 5101 performs the two basic functions of the first guide claw 51 mentioned above (one is to guide the cable tie, and the other is to shorten the circumference of the "closed guide ring" after hooking). Similarly, the combination of the second moving guide claw 5201 and the second stationary guide claw 5202 is equivalent to the second guide claw 52. The second moving guide claw 5201 performs the two basic functions of the second guide claw 52 mentioned above (one is to guide the cable tie, and the other is that one end of the second moving guide claw 5201 works together with the recess 211 in the frame 2 to restrict the six degrees of freedom of the cable tie head). Figure 35 , Figure 36 , Figure 37 As shown: The first guide claw 51 is split into: the first hooking guide claw 5101 and the first stationary guide claw 5102; Figures 30 to 37 The split guide claw structure design shown is mainly used for bundling cable ties that need to pass through narrow spaces, such as motor stators, pipe fittings and other workpieces.

[0102] like Figure 52 , Figure 53 As shown: When the cable tie guide rail 3 is perpendicular to the center plane of the working head of the automatic cable tie tool, that is, when the cable tie is fed laterally into the guide claw mechanism 5, the tail of the cable tie may be skewed. Inclined surfaces 5100 are made on both sides of the U-shaped groove of the first guide claw 51 to facilitate the skewed cable tie body to enter the U-shaped groove of the first guide claw 51.

[0103] (Regarding the installation of the guide claw)

[0104] like Figures 2 to 7 As shown: The guide claw mechanism 5 is arranged adjacent to the frame 2 and installed on the frame 2.

[0105] like Figures 14 to 20 As shown: The second guide claw 52 of the guide claw mechanism 5 is mounted on the face shell 1 via the second guide claw cylinder 542.

[0106] like Figures 21 to 24 As shown: the first guide claw 51 is mounted on the frame 2, and the second guide claw 52 is mounted on the bracket 02 via the second guide claw cylinder 542. The second guide claw cylinder 542 pulls the second guide claw 52 to slide on the guide rail 541 and slides upward as shown in the figure, placing a workpiece 03 with a hole. The second guide claw cylinder 542 pulls the second guide claw 52 to slide on the guide rail 541 and slides downward as shown in the figure, closing with the first guide claw 51. After binding the workpiece 03 with a hole is completed, the second guide claw 52 is pulled upward as shown in the figure to remove the workpiece 03.

[0107] like Figures 25 to 29As shown: The first guide claw 51 and the first guide claw cylinder 531 are both mounted on the second guide claw 52. The second guide claw 52 is mounted on the bracket 02 via the second guide claw cylinder 542. The second guide claw cylinder 542 pulls the second guide claw 52 to slide on the guide rail 541. When the second guide claw 52 is in the upper position shown in the figure, a workpiece 04 with two holes is placed in it. The second guide claw cylinder 542 pulls the second guide claw 52 together with the first guide claw 51 to slide downwards as shown in the figure, pressing down on the workpiece 04 with two holes. The workpiece 04 will have a cable tie head. The cable tie is positioned and locked in the recess 211 of the frame 2. The cable tie passes through the two holes of the workpiece 04 and is wound into a loop in the U-shaped groove of the guide claw mechanism 5 and the U-shaped groove guide ring of the frame 2. The first guide claw cylinder 531 drives the first guide claw 51 to force the tail of the cable tie to pass through the hole of the head of the cable tie and enter the tensioning mechanism 6. After the cable tie is tightened and cut, the second guide claw cylinder 542 pulls the second guide claw 52 together with the first guide claw 51 to slide upward as shown in the figure, and the workpiece 04 is taken out, thus completing the binding of the workpiece 04 with two holes.

[0108] like Figures 44 to 52 As shown: This invention is applied to a desktop automatic cable tie machine. The first guide claw 51 is mounted on the frame 2 and can rotate around the first guide claw center pin 511. The second guide claw 52 is mounted on the frame 2 and can swing slightly around the second guide claw center pin 521. The first guide claw cylinder 531 is hinged to the first guide claw 51 through the first guide claw drive pin 512. The first guide claw cylinder 531 drives the first guide claw 51 to rotate around the first guide claw center pin 511 and close to the second guide claw 52. The first guide claw 51 continues to rotate so that the tail of the cable tie passes through the head of the cable tie and is inserted into the tensioning mechanism 6. After the cable tie is tensioned, the cutter drive mechanism 8 drives the cutter 7 to cut the cable tie. When the sensor 402 detects that the periodic gear 401 has rotated to a fixed position, one automatic cable tie binding cycle is completed.

[0109] (Regarding the drive method of the guide claw)

[0110] like Figure 3 , Figure 6 , Figure 7As shown: The first guide pawl 51 is driven by a cam 81 driven by a motor. The cam 81 drives the driven roller 517, which in turn drives the connecting rod 515 to rotate around the connecting rod center pin 516. The rotation of the connecting rod 515 drives the shift fork rod 513 to rotate around the shift fork rod center pin 514. The shift fork rod 513 drives the first guide pawl drive pin 512, which is fixed to the end of the first guide pawl 51. The power acting on the first guide pawl drive pin 512 drives the first guide pawl 51 to swing around the first guide pawl center pin 511. The second guide pawl 52 is driven by a trigger 524 driving a trigger connecting rod 522, and the second guide pawl 52 rotates around the second guide pawl center pin 521.

[0111] like Figure 12 , Figure 13 As shown: the first guide claw 51 is driven by the cam 81 driven by the motor, and the second guide claw 52 is driven by the cam 552.

[0112] like Figure 14 , Figure 15 , Figure 16 , Figure 27 , Figure 28 , Figure 29 As shown: the first guide claw 51 is driven by the first guide claw cylinder 531, and the second guide claw 52 is driven by the second guide claw cylinder 542;

[0113] like Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 42 As shown: the first guide claw 51 is driven by a motor-driven cam 81, and the second guide claw 52 is driven by a second guide claw cylinder 542; in Figure 42 In the middle, the second guide claw cylinder 542 is built into the face shell 1.

[0114] like Figure 43 As shown: The working head 01 of the automatic cable tie tool is mounted on the bracket 02, and the trigger cylinder 07 is also mounted on the bracket 02. The action of the trigger cylinder 07 drives the trigger plate 08 to press down the trigger 524 and drive the second guide claw 52.

[0115] like Figure 51 , Figure 52As shown: The second guide claw 52 can swing at a small angle around the center pin 521 of the second guide claw. The first guide claw cylinder 531 is hinged to the first guide claw 51 through the first guide claw drive pin 512. The first guide claw cylinder 531 drives the first guide claw 51 to rotate around the center pin 511 of the first guide claw and close to the second guide claw 52.

[0116] Example 4: (Regarding cable tie guides)

[0117] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 As shown: The cable tie guide rail 3 includes a guide rail body 31 and a guide rail cover plate 32. The guide rail body 31 has a U-shaped groove. The U-shaped groove of the guide rail body 31 and the guide rail cover plate 32 form four guide surfaces of the cable tie guide channel. The cross-sectional shape of the guide channel enclosed by the four guide surfaces is square or trapezoidal (the square refers to a "rectangle" or "square"). The four guide surfaces are respectively matched with four surfaces of the cable tie head outline that are parallel to the length direction of the cable tie or with the edges of the four surfaces of the cable tie head, which guides the movement of the cable tie. The length direction of the guide channel of the cable tie guide rail is the movement trajectory of the cable tie, that is: the direction of cable tie movement is the length direction of the cable tie. The cable tie guide rail is arranged such that the cable tie's movement trajectory is located within the center plane of the working head of the automatic cable tie tool. When the length direction of the guide channel of the cable tie guide rail (i.e., the cable tie's movement trajectory) is located within the center plane of the working head 01 of the automatic cable tie tool, both the cable tie head and the cable tie body are restricted to move within the guide channel of the cable tie guide rail 3. That is, the cable tie guide rail 3 transports the cable tie "longitudinally" into the U-shaped groove of the frame 2. The length direction of the guide channel of the cable tie guide rail 3 (i.e., the cable tie's movement trajectory) is either a curve.

[0118] like Figure 44 , Figure 46 , Figure 49 , Figure 50 As shown: The cable tie guide rail 3 includes a guide rail body 31 and a guide rail cover plate 32. The guide rail body 31 has a U-shaped groove. The U-shaped groove of the guide rail body 31 and the guide rail cover plate 32 form four guide surfaces of the cable tie guide channel. The four guide surfaces of the cable tie guide channel formed by the U-shaped groove of the guide rail body 31 and the guide rail cover plate 32 are perpendicular to the length direction of the cable tie. Only the head of the cable tie is restricted by the four guide surfaces of the cable tie guide channel formed by the U-shaped groove of the guide rail body 31 and the guide rail cover plate 32. The cable tie guide rail 3 makes the movement trajectory of the cable tie (the guide channel of the cable tie guide rail 3) perpendicular to the center plane of the working head 01 of the automatic cable tie tool. Figure 46In the diagram, section KK is the center plane of the working head 01 of the automatic cable tie tool. The cable tie guide rail 3 transports the cable tie 06 from left to right. The length direction of the guide channel of the cable tie guide rail 3 (i.e., the cable tie movement trajectory) is perpendicular to the center plane of the working head 01 of the automatic cable tie tool. The cable tie guide rail 3 transports the cable tie "laterally" to the center plane of the working head 01 of the automatic cable tie tool. The length direction of the guide channel of the cable tie guide rail 3 (i.e., the cable tie movement trajectory) is either a straight line or a curve.

[0119] like Figure 58 As shown: The guide rail body 31 has multiple rollers with U-shaped grooves evenly distributed along the circumference, and the arc surface of the guide rail cover plate 32 and each U-shaped groove of the guide rail body 31 form four guide surfaces for the cable tie guide channel.

[0120] Example 5: (Regarding the tensioning mechanism)

[0121] like Figures 3 to 7 , Figure 19 , Figure 20 , Figure 24 , Figures 24 to 29 , Figures 32 to 34 , Figures 50 to 52 , Figures 54 to 57 As shown: The tensioning mechanism 6 includes: an active central tensioning wheel 611, an active central tensioning shaft 612, an auxiliary tensioning wheel 621, an auxiliary tensioning shaft 622, and a transmission gear 613. The active central tensioning shaft 612 can be combined with the active central tensioning wheel 611 into one part, and the auxiliary tensioning shaft 622 can be combined with the auxiliary tensioning wheel 621 into one part. The number of active central tensioning wheels 611 is at least one, and at least one transmission gear 613 is coaxially fixedly connected to the active central tensioning wheel 611. The number of auxiliary tensioning wheels 621 is one, two, or more.

[0122] like Figure 54 , Figure 56 , Figure 57 As shown, there is one active center tensioning wheel 611 and only one auxiliary tensioning wheel 621.

[0123] like Figures 3 to 5 , Figure 19 , Figure 20As shown: There is one active center tensioning wheel 611, and two auxiliary tensioning wheels 621 are arranged around the circumference of the active center tensioning wheel 611. The two auxiliary tensioning wheels 621 cause the cable tie to wrap around the circumference of the active center tensioning wheel 611 to form a certain wrap angle. The two auxiliary tensioning wheels 621 are mounted on the support plate 623 through auxiliary tensioning shafts 622. The support plate 623 can rotate around the support plate center pin 624. The support plate center pin 624 is fixedly mounted on the frame 2. Rotating the tension force adjusting screw 626 can adjust the elastic force of the tension force adjusting spring 625, thereby adjusting the pressure of the auxiliary tensioning wheels 621 on the cable tie. The center distance between the two auxiliary tensioning wheels 621 and the active center tensioning wheel 611 is floating.

[0124] like Figure 24 , Figures 24 to 29 , Figures 32 to 34 , Figures 50 to 52 , Figure 55 As shown: There is one active center tensioning wheel 611, and two auxiliary tensioning wheels 621 are arranged around the circumference of the active center tensioning wheel 611. Figure 55 In this design, the two auxiliary tensioning wheels 621 are made with a stepped structure to increase the contact area with the cable tie. The two auxiliary tensioning wheels 621 make the cable tie wrap around the circumference of the active center tensioning wheel 611 to form a certain wrap angle. The active center tensioning wheel 611 and the two auxiliary tensioning wheels 621 are mounted on the frame 2 by bearings. The two auxiliary tensioning wheels 621 and the active center tensioning wheel 611 have a fixed center distance.

[0125] like Figure 55 , Figure 56 , Figure 57 As shown: Each auxiliary tensioning wheel 621 is also coaxially fixedly connected to the transmission gear 613, that is, each auxiliary tensioning wheel 621 is powered.

[0126] like Figure 4 , Figure 5 As shown: at least ratchet teeth or patterns are made around the periphery of the active center tensioning wheel 611 to increase the friction between the active center tensioning wheel 611 and the cable tie.

[0127] Example 6: (Regarding the periodic control mechanism)

[0128] like Figure 3 , Figure 14 , Figure 15 , Figure 16As shown: The cycle control mechanism 4 includes a cycle gear 401 and a sensor 402. The power of the cycle gear 401 is transmitted from the motor and the reduction gearbox 9. The sensor 402 is arranged adjacent to the cycle gear 401. The cycle gear 401 has one or more magnets, protrusions, or holes 403 along the circumferential end face of the cycle gear 401. When the sensor 402 detects a magnet, protrusion, or hole 403, the electrical control board 10 controls the motor and the reduction gearbox 9 to stop operating and controls the pneumatic components to reset, thus completing one cable tie binding cycle. Generally, one rotation of the cycle gear 401 completes one cable tie binding cycle. In particular, the program can be modified so that the sensor 402 detects a magnet, protrusion, or hole 403 two or more times before completing one cable tie binding cycle.

[0129] Example 7: (Regarding the cutter drive mechanism)

[0130] like Figure 3 , Figure 14 , Figure 15 , Figure 16 As shown: The periodic gear 401 of the periodic control mechanism 4 directly meshes with the transmission gear 613 of the tensioning mechanism. When the periodic gear 401 rotates at a fixed angle, it drives the transmission gear 613 to rotate a fixed number of times, that is, when the active center tensioning wheel 611 rotates a fixed circumference, the cam 81, which is coaxially fixed with the periodic gear 401, drives the cutter 7 to cut the cable tie, thereby achieving "fixed length" cutting.

[0131] like Figure 6 , Figure 7 , Figure 19 , Figure 20 As shown: Cam 81 is coaxially fixedly mounted with the periodic gear 401. Before the sensor 402 detects the magnet, the protrusion, or the hole 403, that is, before one cable tie binding cycle is completed, the distal end of cam 81 acts on the protrusion on lever 811, causing lever 811 to rotate around the lever center pin 812. The rotation of lever 811 drives cutter 7 to cut the cable tie; Figure 6 , Figure 7 , Figure 19 , Figure 20 In the middle, cam 81 rotates counterclockwise. Due to the rotation direction of cam 81 and the layout of the parts, a lever 811 is added between cam 81 and cutter 7 as a transition element. If cam 81 is changed to rotate clockwise, cam 81 can directly drive cutter 7. Therefore, cam 81 is the cutter drive mechanism 8.

[0132] like Figure 17As shown: Before a cable tie binding cycle is completed, a signal is obtained from the cycle gear 401 or the cam coaxially fixed to the cycle gear 401 and sent to the electrical control board 10. The electrical control board 10 controls the cylinder 821 to drive the cutter drive pin 822 so that the cutter 7 cuts the cable tie. As an alternative to the cylinder 821, either an additional motor drives the gear to drive the rack to drive the cutter 7, or an additional motor drives the crank-connecting rod mechanism to drive the cutter 7 to cut the cable tie.

[0133] like Figure 32 , Figure 34 , Figure 56 , Figure 57 As shown: A three-terminal input / output mechanism 80 is added between the periodic gear 401 and the transmission gear 613. The three-terminal input / output mechanism 80 includes: an adjusting screw 801, a vernier 802, an adjusting spring 803, a planetary gear 804, a planetary gear base 805, a sun gear 806, and internal and external gears 807. The periodic gear 401 meshes with the sun gear 806, and the outer gear ring of the internal and external gears 807 meshes with the transmission gear 613 of the tensioning mechanism 6. Rotating the adjusting screw 801 controls the pre-tightening force of the adjusting spring 803 on the planetary gear base 805. When the torque generated by the tensioning force of the tensioning mechanism 6 on the cable tie is equal to or greater than the torque of the pre-tightening force of the adjusting spring 803 on the planetary gear base 805, the planetary gear base 805 rotates, and the pin 808 fixed on the planetary gear base 805 drives the cutter 7 to cut the cable tie, achieving "constant torque" cutting.

[0134] Example 8: (Application of the working head of an automatic cable tie tool)

[0135] like Figures 1 to 7 , Figure 10 , Figures 12 to 20 As shown: The working head 01 of the automatic cable tie tool is also equipped with a data cable 11 and a feeding tube 12 on its face shell 1. The data cable 11 and the feeding tube 12 can be connected and combined with a bulk cable tie feeding device or an integrated cable tie feeding device to be used as a handheld tool.

[0136] like Figures 21 to 37 As shown: The working head 01 of the automatic cable tie tool is fixed on the bracket 02. The installation method of the guide claw mechanism 5 is changed or / and the guide claw mechanism 5 is disassembled as described in Embodiment 3. The data cable 11 and the feeding tube 12 are connected and combined with the bulk cable tie feeding device or the integrated cable tie feeding device to realize the automatic binding operation of the cable tie passing through one or two holes of the workpiece being bound or passing through the small space of the workpiece being bound.

[0137] like Figures 38 to 43 As shown: The working head 01 of the automatic cable tie tool is mounted on the bracket 02. The data cable 11 and the feeding tube 12 are connected and combined with the bulk cable tie feeding device (patent number: ZL2017207985874) or the integrated cable tie feeding device (patent number: ZL201720798762X) to be used as a fixed cable tie tool.

[0138] Example 9: (Application of the working head of an automatic cable tie tool)

[0139] like Figures 44 to 53 As shown: The working head 01 of the automatic cable tie tool is installed on a desktop for use as a desktop automatic cable tie machine, such as... Figures 46 to 49 As shown: The ratchet feeding device 30 presses the head of the cable tie 06... Figure 46 Pushing from left to right as shown, the head of the cable tie 06 moves side-by-side within the cable tie guide rail 3 into the U-shaped groove of the guide claw mechanism 5. The ratchet feeding device 30 includes: a ratchet 301, a clutch shaft 302, a spring 303, a friction plate 304, an adjusting nut 305, a motor, and a gearbox 309. The ratchet 301, clutch shaft 302, spring 303, friction plate 304, adjusting nut 305, motor, and gearbox 309 are coaxially mounted. The clutch shaft 302, spring 303, friction plate 304, adjusting nut 305, and output shaft of the motor and gearbox 309 rotate synchronously. The ratchet 301 is loosely fitted on the clutch shaft 302. The friction of the friction plate 304 drives the ratchet 301 to rotate. The ratchet teeth of the ratchet 301 drive the head of the cable tie 06 to press... Figure 46 The direction shown is from left to right.

[0140] Example 10: (Application of a continuously feeding roller as a cable tie guide in the working head of an automatic cable tie tool)

[0141] like Figure 58 As shown: The cable tie guide rail 3 includes a guide rail body 31 and a guide rail cover plate 32. The guide rail body 31 is a roller with multiple U-shaped grooves evenly distributed along the circumference. The cross-sectional shape of the U-shaped grooves of the guide rail body 31 is square or trapezoidal. The mating surface between the guide rail cover plate 32 and the guide rail body 31 is arc-shaped. In one cable tie binding cycle, the guide rail body 31, i.e., the roller, rotates stepwise by one groove angle. This structure is a design that integrates the feeding device into the working head 01 of the automatic cable tie tool.

[0142] The "square" or "trapezoidal" U-shaped grooves described in the above embodiments refer to either squares or rectangles. Minor variations in shape do not fundamentally change the function. The cylinders mentioned in the embodiments can be replaced by motor-driven cams, linkage mechanisms, or rack and pinion mechanisms. Conversely, the cams or linkage mechanisms mentioned in the embodiments can be replaced by cylinders, with only a different structural layout, which does not change the main function of the present invention.

[0143] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A frame cable tie guide rail, guide claw, and tensioning mechanism assembly for an automatic cable tie tool, characterized in that: include: The system comprises a frame, a cable tie guide rail, a guide claw mechanism, and a tensioning mechanism. The frame has a U-shaped groove for guiding the cable ties and a recess for positioning the cable tie head. The recess is rectangular or square. Each recess has a small rectangular hole located in the center, allowing the cable tie tail to pass through and enter the tensioning mechanism. The frame can be a single integral part or divided into two or more parts. The cable tie guide rail is mounted adjacent to the frame and has a square guide channel matching the shape of the cable tie head. This square guide channel connects to one end of the U-shaped groove within the frame. The guide claw mechanism includes at least two guide claws, and at least one or each of the at least two guide claws has a U-shaped groove. The symmetrical center planes of the U-shaped grooves of the guide claw mechanism and the U-shaped grooves in the frame are both located within the center plane of the working head of the automatic cable tie tool. When the guide claw mechanism is closed with the frame, the U-shaped grooves of the guide claw mechanism and the U-shaped grooves of the frame are connected end-to-end to form a closed U-shaped groove guide ring, or the U-shaped grooves of the guide claw mechanism and the U-shaped grooves of the frame are connected end-to-end to the surface of the part being bundled to form a closed guide ring. Calculated from the bottom of the U-shaped groove, the length of the guide ring is greater than or equal to the length of the cable tie being bundled. The recess, together with the end face of one of the guide claws of the guide claw mechanism, restricts the six degrees of freedom of the cable tie head; or the end face of one of the guide claws of the guide claw mechanism acts on the bundled part, and the end face of one of the guide claws of the guide claw mechanism indirectly restricts the six degrees of freedom of the cable tie head together with the recess; the tensioning mechanism is mounted on the frame, and the tensioning mechanism includes: an active center tensioning wheel, an auxiliary tensioning wheel, and a transmission gear; the number of the active center tensioning wheel is at least one, and at least one transmission gear is coaxially fixed with the active center tensioning wheel to provide power for the tensioning mechanism to tighten the cable tie. The central tensioning wheel is mounted on the frame via bearings; the number of auxiliary tensioning wheels is at least one, and when two or more auxiliary tensioning wheels are used around the central tensioning wheel, the two or more auxiliary tensioning wheels are arranged along the circumference of the central tensioning wheel; the at least one auxiliary tensioning wheel has a fixed center distance from the central tensioning wheel; or the at least one auxiliary tensioning wheel has a floating center distance from the central tensioning wheel, and the auxiliary tensioning wheel is mounted on a support plate, the support plate can rotate around the central pin of the support plate fixed on the frame, and a spring is designed to pull or press the at least one auxiliary tensioning wheel toward or against the central tensioning wheel.

2. The automatic cable ties tool according to claim 1, characterized in that: Each auxiliary tensioning wheel is also coaxially fixed to the transmission gear, so that each auxiliary tensioning wheel has power input.

3. The automatic cable ties tool according to claim 1, characterized in that: The frame or the parts that are disassembled from the frame are provided with window parts. By disassembling the window parts, the parts of the tensioning mechanism can be seen, which makes it easy to clean the debris stuck to the parts of the tensioning mechanism. The window parts are also one of the mounting ends of the tensioning mechanism.

4. The automatic cable ties tool according to claim 1, characterized in that: The frame may be a single integral part; or the frame may be divided into a frame body and a frame cover.

5. The automatic cable ties tool according to claim 1 or 4, characterized in that: The rack body and rack cover plate of the rack are combined with U-shaped grooves and recesses. The recesses are rectangular or square depressions with a small rectangular hole in the center.

6. The automatic cable ties tool according to claim 1, characterized in that: At least ratchet teeth or patterns are made around the periphery of the active center tension wheel.

7. The automatic cable ties tool according to claim 1, characterized in that: The guide claw mechanism includes at least a first guide claw and a second guide claw. When the cable tie is fed into the guide claw mechanism, the one whose U-shaped groove contacts the cable tie first is called the first guide claw, and the one whose U-shaped groove contacts the cable tie later is called the second guide claw.

8. The automatic cable ties tool according to claim 1, characterized in that: The action of the first guide claw of the guide claw mechanism enables the tail of the cable tie to pass through the hole in the head of the cable tie and enter the tensioning mechanism.

9. The automatic cable ties tool according to claim 1, characterized in that: The cable tie guide rail includes a guide rail body and a guide rail cover plate. The guide rail body has a U-shaped groove, and the guide rail cover plate and the guide rail body are combined to form a guide channel with four guide surfaces.

10. The automatic cable ties tool according to claim 1, characterized in that: The cable tie guide rail is arranged such that either the cable tie movement trajectory is located within the center plane of the working head of the automatic cable tie tool, or the cable tie movement trajectory is perpendicular to the center plane of the working head of the automatic cable tie tool.

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