Branch binding machine

Abstract

The utility model belongs to the technical field of branch binding machine cabinets, and particularly relates to a branch binding machine which comprises a machine base and a rocker arm which are connected in a rotating mode, the rocker arm is provided with a belt pressing structure and a driving handle, the belt pressing structure comprises a head shell, a driving piece and a belt hooking piece are movably arranged in the head shell, and a guide groove is formed in the belt hooking piece. A guide groove is formed in the head shell, a guide rod matched with the guide groove is arranged on the head shell, the driving piece is arranged on the head shell in a sliding mode, a first elastic piece is arranged on the head shell, a driving groove is formed in the driving piece, and a positioning groove corresponding to the driving groove is formed in the head shell; the driving groove comprises a first driving part and a second driving part which are arranged in a V shape, and a first positioning part and a second positioning part which are arranged in an L shape are arranged in the positioning groove; a fixing pin is arranged on the belt hooking piece, the fixing pin is matched with the driving groove and the positioning groove respectively, and a torsion spring and a limiting protruding edge are arranged on the fixing pin.

Description

Technical Field

[0001] The utility model belongs to the technical field of tying machines, and particularly relates to a tying machine. Background Art

[0002] A tying machine generally refers to a vine tying machine, which is a manual tool for tying vine plants such as tomatoes, cucumbers, grapes, peppers, eggplants, and horticulture.

[0003] Most of the common tying machines on the market tie plants with tying straps. During use, the tying machine can cut the tying straps as needed, which is convenient for the flexible use of the tying machine. For example, a pressing belt structure of a tying machine disclosed in Chinese Utility Model Patent CN202321703165.6. The tying machine includes a frame, on which a rocker arm and a driving handle are movably arranged. A tape guide seat and a cutter are arranged on the frame. The pressing belt structure includes a mounting seat installed on the rocker arm. A hook belt piece is rotatably arranged on the mounting seat. A pressing plate is also arranged on the mounting seat. The tape guide seat controls the tying strap to pass between the pressing plate and the hook belt piece, and then the hook belt piece can press the tying strap against the pressing plate. A pressing block and a first elastic member are movably arranged on the mounting seat. A pressing portion for pressing the tying strap against the pressing plate is arranged on the hook belt piece. The first elastic member drives the pressing block to press against the hook belt piece and drives the pressing portion to flip towards the pressing plate. The tape guide seat feeds the tying strap between the pressing plate and the hook belt piece. The purpose of the utility model is to provide a pressing belt structure of a tying machine with a simple structure and convenient assembly and production.

[0004] During the use of the above structure, the hook belt piece is driven to rotate through the tape guide seat, so as to realize the connection or disconnection between the hook belt piece and the tying strap. However, during use, the tape guide seat slides along the hook belt piece and drives the hook belt piece to rotate relatively. A relatively large force is required in this process, which is not convenient for long-term work. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a tying machine that is relatively labor-saving and convenient to use.

[0006] The purpose of the utility model is realized as follows:

[0007] A tying machine, comprising a machine base and a rocker arm rotatably connected. A tape guide seat, a cutter and a fixing mechanism are arranged on the machine frame. A tape pressing structure and a driving handle are arranged on the rocker arm. The driving handle can drive the rocker arm to move relative to the machine base, so that the tape pressing structure pulls the tying tape. Or, the tying tape is controlled by a fixing device to form an annular structure, and the tying tape is cut by the cutter. The tape pressing structure includes a head shell, in which a driving member and a tape hooking piece are movably arranged. A guiding groove is arranged on the tape hooking piece, and a guiding rod adapted to the guiding groove is arranged on the head shell. The driving member is slidably arranged on the head shell, and a first elastic member for driving the driving member to reset is arranged on the head shell. A driving groove is arranged on the driving member, and a positioning groove corresponding to the driving groove is arranged on the head shell;

[0008] The driving groove includes a first driving part and a second driving part arranged in a V shape. The first driving part extends along the sliding direction of the driving member. A first positioning part and a second positioning part arranged in an L shape are arranged in the positioning groove. During use, the fixing pin cooperates with the first driving part and the first positioning part at the same time, or the fixing pin cooperates with the second driving part and the second positioning part at the same time;

[0009] A fixing pin is arranged on the tape hooking piece. The fixing pin extends towards the side of the tape hooking piece and cooperates with the driving groove and the positioning groove respectively. A limiting convex edge is arranged on the fixing pin, and a torsion spring for driving the tape hooking piece to reset is sleeved on the fixing pin. The limiting convex edge is arranged on one side of the torsion spring to prevent the torsion spring from disengaging from the fixing pin;

[0010] The driving handle can drive the driving member to abut against the machine frame, so that the driving member slides relative to the head shell, and the fixing pin moves relative to the first driving part to the side of the second driving part. The torsion spring can drive the tape hooking piece to reset, so that the fixing pin cooperates with the second driving part and the second positioning part at the same time, and further enables the tape hooking piece to tightly press or hook the tying tape. And controlling the driving member to abut against the machine frame again can make the driving member slide relative to the head shell, drive the fixing pin to disengage from the second driving part and the second positioning part through the side plate of the second driving part, and make the fixing pin cooperate with the first positioning part.

[0011] The present utility model is further arranged as: the fixing pin includes a pin rod fixed on the tape hooking piece, and a limiting sleeve is sleeved on the pin rod. A limiting convex edge extends from the outer periphery of the limiting sleeve.

[0012] The present utility model is further arranged as: a tying tape box is arranged on the machine base. An installation protrusion for installing a tying tape roll is arranged in the tying tape box. A balance weight and a second elastic member are arranged in the tying tape box. The second elastic member can drive the balance weight to abut against the tying tape roll and prevent the tying tape roll from rotating freely.

[0013] The present utility model is further arranged as: the balance weight is slidably arranged on the installation protrusion, and the second elastic member can drive the balance weight to abut against the inner wall of the tying tape roll.

[0014] The present utility model is further configured such that: at least two balance blocks are circumferentially arranged on the installation protrusion, and the second elastic member can drive the balance blocks to respectively abut against the inner wall of the strap roll.

[0015] The present utility model is further configured such that: the head shell includes a left shell and a right shell detachably connected by fasteners. The hook strap piece and the driving member are both arranged between the left shell and the right shell. The rocker arm bends towards both sides of the head shell and wraps around both sides of the head shell, thereby preventing the left shell and the right shell from loosening or even detaching.

[0016] The present utility model is further configured such that: a countersunk hole is provided on the left shell or the right shell, the fastener is a countersunk screw, and the rocker arm extends to the end of the countersunk screw to prevent the countersunk screw from detaching from the countersunk hole.

[0017] The present utility model is further configured such that: the head shell further includes a detachably arranged partition board. The driving member and the hook strap piece are respectively arranged on both sides of the partition board, and the guide rod and the positioning groove are both arranged on the partition board.

[0018] The present utility model is further configured such that: the guide rod penetrates through the partition board and is respectively connected to the left shell and the right shell, and a limiting guide groove adapted to the guide rod is provided on the driving member.

[0019] The present utility model is further configured such that: the second driving portion is connected to the lower end of the first driving portion, the guide groove extends in a direction away from the machine frame, and an inclined abutting surface is provided on the head shell. The upper side of the abutting surface extends in a direction away from the hook strap piece; the hook strap piece abuts the strap against the abutting surface so that the pressing strap structure can pull the strap.

[0020] The advantages of the present utility model compared with the prior art are as follows:

[0021] 1. In the present utility model, the sliding structure facilitates the machine frame to drive the driving member along the movement direction of the driving member, thereby reducing the force required during the use of the tying machine, facilitating the user to use, and facilitating the user to work for a long time. In this structure, the position of the hook strap piece during use is controlled by the V-shaped driving groove, the L-shaped positioning groove, and the fixing pin, preventing the hook strap piece from accidentally moving due to excessive force during use, and thus facilitating the connection or detachment of the hook strap piece and the strap, which is convenient for the user to use; the setting of the limiting convex edge is beneficial to the stable installation of the torsion spring, facilitating the assembly and production of the tying machine, and preventing the torsion spring from accidentally detaching from the fixing pin and affecting the normal use of the tying machine.

[0022] 2. In the present utility model, the setting of the limiting sleeve facilitates the flexible production and processing of the limiting convex edge, and facilitates the producer to flexibly adjust the shape and size of the limiting convex edge.

[0023] 3. In the present utility model, the balance block and the second elastic member can provide damping for the movement of the strap roll, avoiding the free rotation of the strap roll on the strap box, which may cause the strap to become loose, facilitating the uniform feeding of the strap by the tying machine, and preventing the situation where the hook strap piece cannot hook the strap on the guide strap seat due to the swaying and retention of the strap; the balance block provided on the mounting protrusion can abut against the inner wall of the strap roll, preventing the outer diameter of the strap roll from decreasing after the strap is used during the use process, thereby reducing the friction between the balance block and the strap roll, facilitating the uniform stress of the strap roll during the use process, and being convenient for the user to use; at least two balance blocks are circumferentially arranged to facilitate the uniform stress of the strap roll during the use process and the relative rotation of the strap roll in the strap box.

[0024] 4. In the present utility model, the detachable head shell facilitates the stable installation of the hook strap piece, the driving member, the first elastic member, and the torsion spring, and the head shell forms a module for the hook strap piece, the driving member, the first elastic member, and the torsion spring, facilitating the assembly and production of the tying machine; the rocker arms covering both sides of the head shell can prevent the left shell and the right shell from loosening or even detaching, facilitating the stable assembly of the head shell; the setting of the countersunk holes and the countersunk screws prevents the fasteners from affecting the contact between the rocker arms and the left shell and the right shell, and prevents the left shell and the right shell from loosening.

[0025] 5. In the present utility model, the setting of the partition plate facilitates the production and processing of the positioning groove, and can reduce the friction between the driving member and the hook strap piece during the use process, facilitating the relative movement of the driving member and the hook strap piece in the head shell, and being convenient for the user to use; the guide rods are respectively matched with the guide grooves and the limit guide grooves, which is beneficial to simplifying the structure of the tying machine and facilitating the assembly and production.

[0026] 6. In the present utility model, the abutting surface extending upward away from the hook strap piece facilitates the upward movement of the hook strap piece and the separation from the abutting surface during the use process, facilitating the separation of the hook strap piece from the strap, and being convenient for the user to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the structural schematic diagram of the present utility model;

[0028] Figure 2 is the exploded schematic diagram of the present utility model;

[0029] Figure 3 is the exploded schematic diagram of the strap pressing structure in the present utility model;

[0030] Figure 4 is the installation structural schematic diagram of the strap pressing structure in the initial state in the present utility model;

[0031] Figure 5 is the installation structural schematic diagram of the strap pressing structure in the hook strap state in the present utility model;

[0032] Figure 6It is a schematic installation structure diagram of the pressure belt structure in the hook belt reset state of the present utility model;

[0033] Figure 7 It is a schematic installation structure diagram of the pressure belt structure when the binding belt is cut by a nail in the present utility model;

[0034] Figure 8 It is a partial cross-sectional view of the pressure belt structure in the present utility model;

[0035] Figure 9 It is a schematic structure diagram of the rocker arm in the present utility model;

[0036] Figure 10 It is a schematic structure diagram of the partition board in the present utility model;

[0037] Figure 11 It is a schematic structure diagram of the driving member in the present utility model;

[0038] Figure 12 It is a schematic structure diagram of the hook belt piece in the present utility model;

[0039] Figure 13 It is a schematic structure diagram of the support seat in the present utility model;

[0040] Figure 14 It is a schematic structure diagram of the binding belt roll installed in the binding belt box in the present utility model;

[0041] Figure 15 It is an exploded view of the binding belt box in the present utility model;

[0042] Figure 16 It is a schematic structure diagram of the box body in the present utility model;

[0043] Figure 17 It is a schematic structure diagram of the balance weight in the present utility model.

[0044] The meanings of the reference numerals in the figure: 1 - frame; 11 - belt guide seat; 12 - cutter; 13 - fixing mechanism; 14 - driving wall; 2 - rocker arm; 21 - side plate; 22 - third elastic member; 3 - driving handle; 4 - head shell; 41 - left housing; 42 - right housing; 43 - countersunk head screw; 44 - partition board; 45 - driving member; 46 - first elastic member; 47 - hook belt piece; 48 - guide plate; 49 - support seat; 421 - fixing groove; 441 - guide rod; 442 - positioning groove;

[0045] 443 - first positioning portion; 444 - second positioning portion; 451 - driving end; 452 - driving groove;

[0046] 453 - First driving part; 454 - Second driving part; 455 - Mounting part; 456 - Limiting guide groove; 471 - Fixed pin; 472 - Torsion spring; 473 - Fixed hole; 474 - Guide groove; 475 - Hook belt part; 476 - Abutting part; 491 - Tightening surface; 4711 - Pin rod; 4712 - Limiting sleeve; 4713 - Limiting flange; 5 - Binding tape box; 51 - Box body; 52 - Flap; 53 - Fixed cover; 511 - Storage cavity; 512 - Mounting protrusion; 513 - Slide groove; 514 - Limiting post; 6 - Binding tape roll; 7 - Balance weight; 71 - Limiting groove; 8 - Second elastic part. Detailed implementation mode

[0047] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments:

[0048] See Figures 1 to 17 As shown, a branch tying machine includes a machine base and a rocker arm 2 that are rotatably connected. A tape guide seat 11, a cutter 12, and a fixing mechanism 13 are provided on the frame 1. A tape pressing structure and a driving handle 3 are provided on the rocker arm 2. The driving handle 3 can drive the rocker arm 2 to move relative to the machine base, so that the tape pressing structure pulls the binding tape, or a fixing device controls the binding tape to form a ring structure, and the binding tape is cut by the cutter 12. The tape pressing structure includes a head shell 4. A driving member 45 and a hook tape piece 47 are movably arranged in the head shell 4. A guide groove 474 is provided on the hook tape piece 47. A guide rod 441 adapted to the guide groove 474 is provided on the head shell 4. The driving member 45 is slidably arranged on the head shell 4, and a first elastic member 46 for driving the driving member 45 to reset is provided on the head shell 4. A driving groove 452 is provided on the driving member 45, and a positioning groove 442 corresponding to the driving groove 452 is provided on the head shell 4. The sliding structure facilitates the frame 1 to drive the driving member 45 along the movement direction of the driving member 45, thereby reducing the force required during the use of the branch tying machine, facilitating the user to use, and facilitating the user to work for a long time. In this embodiment, a driving wall 14 extends from the front end of the frame 1. A driving end 451 is provided on the driving member 45. The driving end 451 passes through the head shell 4. The driving wall 14 can abut against the driving end 451 and drive the driving wall 14 to move.

[0049] An installation part 455 connected to the first elastic member 46 is provided on the driving member 45, and the rocker arm 2 is rotatably arranged on the frame 1. A third elastic member 22 is provided between the rocker arm 2 and the frame 1.

[0050] The driving groove 452 includes a first driving part 453 and a second driving part 454 arranged in a V shape. The first driving part 453 extends along the sliding direction of the driving member 45. The positioning groove 442 is provided with a first positioning part 443 and a second positioning part 444 arranged in an L shape. During use, the fixing pin 471 cooperates with the first driving part 453 and the first positioning part 443 at the same time, or the fixing pin 471 cooperates with the second driving part 454 and the second positioning part 444 at the same time. In this structure, the position of the hook belt piece 47 during use is controlled by the V-shaped driving groove 452, the L-shaped positioning groove 442 and the fixing pin 471, so as to avoid accidental movement of the hook belt piece 47 due to excessive force during use, and further facilitate the connection or detachment of the hook belt piece 47 from the binding belt, which is convenient for the user to use.

[0051] The hook belt piece 47 is provided with a fixing pin 471. The fixing pin 471 extends towards the side of the hook belt piece 47 and cooperates with the driving groove 452 and the positioning groove 442 respectively. The fixing pin 471 is provided with a limiting flange 4713. A torsion spring 472 for driving the hook belt piece 47 to reset is sleeved on the fixing pin 471. The limiting flange 4713 is arranged on one side of the torsion spring 472 to prevent the torsion spring 472 from detaching from the fixing pin 471. The arrangement of the limiting flange 4713 is beneficial to the stable installation of the torsion spring 472, which is convenient for the assembly and production of the binding machine and avoids the accidental detachment of the torsion spring 472 from the fixing pin 471, affecting the normal use of the binding machine.

[0052] In this embodiment, the first positioning part 443 extends along the sliding direction of the driving member 45. The second positioning part 444 and the second driving part 454 are arranged on the same side of the first driving part 453, so that the torsion spring 472 drives the hookable belt piece 47 and the fixing pin 471 to reset, and the fixing pin 471 cooperates with the second positioning part 444 and the second driving part 454. The pressing belt structure is provided with a support seat 49. The hook belt piece 47 can press the binding belt against the support seat 49, so that the pressing belt structure can pull the binding belt. The hook belt piece 47 is provided with an abutting part 476. One side of the torsion spring 472 abuts against the abutting part 476, and the other end of the torsion spring 472 abuts against the head shell 4.

[0053] During the use of the binding machine in the present utility model, the pressing belt structure is divided into four states in total: 1. Initial state; 2. Hook belt state; 3. State of reset after hooking the belt; 4. State of cutting belt and nailing.

[0054] 1. Initial state: The state of the pressing belt structure when the binding machine is first used;

[0055] 2. Hook belt state: By driving the handle 3 and the rocker arm 2 to drive the pressing belt mechanism towards the guide belt seat 11 until the driving wall 14 abuts against the driving part 451, so that the fixing pin 471 moves to the ends of the second positioning part 444 and the second driving part 454. At this time, the pressing belt structure is in the hook belt state;

[0056] 3. Rear reset state of the hook strap: Release the driving handle 3, and the torsion spring 472 drives the hook strap piece 47 to reset, so that the fixing pin 471 cooperates with the second driving part 454 and the second positioning part 444 at the same time. Furthermore, the hook strap piece 47 presses against or hooks the binding strap, and the hook strap part 475 on the hook strap piece 47 presses the binding strap against the support seat 49. The rocker arm 2 and the pressing strap structure can pull the binding strap out. At this time, the pressing strap structure is in the rear reset state of the hook strap;

[0057] 4. State of the cutting nail needle: Control the plant to press against the binding strap. The driving handle 3 and the rocker arm 2 drive the pressing strap mechanism to move towards the cutter 12 and the fixing mechanism 13, so that the driving part 45 can abut against the frame 1 and the driving part 45 slides relative to the head shell 4. The fixing pin 471 is driven by the side plate 21 of the second driving part 454 to disengage from the second driving part 454 and the second positioning part 444, and the fixing pin 471 cooperates with the first positioning part 443. The hook strap piece 47 disengages from the binding strap. The fixing mechanism 13 forms a loop structure of the binding strap, and the cutter 12 cuts the binding strap. At this time, the pressing strap structure is in the state of the cutting nail needle.

[0058] The fixing mechanism 13 can be a stapler structure to staple the two ends of the binding strap together, or it can be to melt and bond the two ends of the binding strap through a heat fusion structure. The above two solutions exist in the prior art. Although the fixing mechanism 13 of the present invention is not specifically described, those skilled in the art can implement the technical solution of the present invention.

[0059] In the present invention, the second driving part 454 is connected to the lower end of the first driving part 453. The guiding groove 474 extends in a direction away from the frame 1, and the support seat 49 is provided with an inclined abutting surface 491. The abutting surface 491 extends laterally in a direction away from the hook strap piece 47; the hook strap piece 47 presses the binding strap against the abutting surface 491 so that the pressing strap structure can pull the binding strap. In this structure, the abutting surface 491 facilitates the upward movement of the hook strap piece 47 and its disengagement from the abutting surface 491 during use, facilitating the disengagement of the hook strap piece 47 from the binding strap and facilitating the use by the user. Preferably, a guide plate 48 is provided between the hook strap piece 47 and the support seat 49. The hook strap piece 47 drives the binding strap to pass through the guide plate 48 and presses the binding strap against the abutting surface 491.

[0060] The fixing pin 471 includes a pin rod 4711 fixed on the hook strap piece 47. The limiting convex edge 4713 can be integrally arranged on the pin rod 4711. In this embodiment, preferably, the fixing piece is provided with a fixing hole 473 adapted to the pin rod 4711. A limiting sleeve 4712 is sleeved on the pin rod 4711. The outer periphery of the limiting sleeve 4712 extends to form a limiting convex edge 4713. The setting of the limiting sleeve 4712 facilitates the flexible production and processing of the limiting convex edge 4713, and in this structure, the limiting convex edge 4713 is less stressed, facilitating the producer to flexibly adjust the shape and size of the limiting convex edge 4713.

[0061] In the utility model, a strap box 5 is arranged on the machine base. An installation protrusion 512 for installing a strap roll 6 is arranged in the strap box 5. A balance weight 7 and a second elastic member 8 are arranged in the strap box 5. The second elastic member 8 can drive the balance weight 7 to abut against the strap roll 6 and prevent the strap roll 6 from rotating freely. The arrangement of the balance weight 7 and the second elastic member 8 can provide damping for the movement of the strap roll 6, avoid the strap roll 6 rotating freely on the strap box 5 resulting in loose straps, facilitate the uniform strap output of the tying machine, and avoid the situation that the hook strap piece 47 cannot hook the strap on the guide strap seat due to the shaking and retention of the strap.

[0062] In this embodiment, the strap box 5 includes a box body 51 and a flip cover 52 which are rotatably connected. A storage cavity 511 is arranged in the box body 51, and the installation protrusion 512 is arranged in the storage cavity 511.

[0063] When the balance weight 7 abuts against the outer side of the strap roll 6, the outer diameter of the strap roll 6 will gradually decrease, which will lead to a decrease in the friction between the balance weight 7 and the strap roll 6, affecting the traction of the strap by the strap pressing structure. Therefore, it is preferred that the balance weight 7 is slidably arranged on the installation protrusion 512, and the second elastic member 8 can drive the balance weight 7 to abut against the inner wall of the strap roll 6. The balance weight 7 arranged on the installation protrusion 512 can abut against the inner wall of the strap roll 6, which is beneficial to the uniform force of the strap roll 6 during use and convenient for the user to use.

[0064] At least two balance weights 7 are circumferentially arranged on the installation protrusion 512. The second elastic member 8 can drive the balance weights 7 to respectively abut tightly against the inner wall of the strap roll 6. The circumferential arrangement of at least two balance weights 7 facilitates the uniform force of the strap roll 6 during use and the relative rotation of the strap roll 6 in the strap box 5.

[0065] In this embodiment, a chute 513 is arranged on the installation protrusion 512. Balance weights 7 are respectively slidably arranged at both ends of the chute 513. A second elastic member 8 is arranged between the balance weights 7. A limiting column 514 is arranged in the chute 513. A limiting groove 71 adapted to the limiting column 514 is arranged on the balance weight 7. A fixing cover 53 is detachably arranged on the installation protrusion 512, and the fixing cover 53 abuts against the balance weight 7 to prevent the limiting column 514 from disengaging from the limiting groove 71.

[0066] The head shell 4 includes a left shell 41 and a right shell 42 that are detachably connected by fasteners. The hook strip 47 and the driving member 45 are both arranged between the left shell 41 and the right shell 42. The rocker arm 2 bends towards both sides of the head shell 4 and wraps around both sides of the head shell 4, thereby preventing the left shell 41 and the right shell 42 from loosening or even detaching. The detachable head shell 4 facilitates the stable installation of the hook strip 47, the driving member 45, the first elastic member 46, and the torsion spring 472. Moreover, the head shell 4 forms a module with the hook strip 47, the driving member 45, the first elastic member 46, and the torsion spring 472, which is convenient for the assembly and production of the branch tying machine. The rocker arm 2 wrapping around both sides of the head shell 4 can prevent the left shell 41 and the right shell 42 from loosening or even detaching, which is beneficial to the stable assembly of the head shell 4. In this embodiment, side plates 21 are formed by bending both sides of the rocker arm 2, and the side plates 21 are respectively arranged on both sides of the head shell 4.

[0067] In the present utility model, countersunk holes are provided on the left shell 41 or the right shell 42, and the fasteners are countersunk screws 43. The rocker arm 2 extends to the end of the countersunk screw 43 to prevent the countersunk screw 43 from detaching from the countersunk hole. The arrangement of the countersunk hole and the countersunk screw 43 prevents the fasteners from affecting the contact between the rocker arm 2 and the left shell 41 and the right shell 42, and prevents the left shell 41 and the right shell 42 from loosening.

[0068] The head shell 4 further includes a detachably arranged partition plate 44. The driving member 45 and the hook strip 47 are respectively arranged on both sides of the partition plate 44, and a guide rod 441 and a positioning groove 442 are both arranged on the partition plate 44. The arrangement of the partition plate 44 facilitates the production and processing of the positioning groove 442, and can reduce the friction between the driving member 45 and the hook strip 47 during use, facilitating the relative movement of the driving member 45 and the hook strip 47 in the head shell 4 and facilitating the user to use.

[0069] In this embodiment, the guide rod 441 penetrates through the partition plate 44 and is respectively connected to the left shell 41 and the right shell 42. A limiting guide groove 456 adapted to the guide rod 441 is provided on the driving member 45. The guide rod 441 cooperates with the guide groove 474 and the limiting guide groove 456 respectively, which is beneficial to simplifying the structure of the branch tying machine and facilitating assembly and production. Fixed grooves 421 are provided on both the left shell 41 and the right shell 42, and the guide plate 48 is fixed to the head shell 4 through the fixed grooves 421.

[0070] The above embodiments are only preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A branch tying machine, comprising a base and a rocker arm (2) connected in rotation, a belt guide seat (11), a cutter (12) and a fixing mechanism (13) being arranged on the frame (1), a belt pressing structure and a driving handle (3) being arranged on the rocker arm (2), the driving handle (3) being capable of driving the rocker arm (2) and the base to move relative to each other, so that the belt pressing structure pulls the belt, or the belt is controlled to form a ring structure by a fixing device, and the belt is cut by the cutter (12), characterized in that: The belt pressing structure comprises a head shell (4), a driving member (45) and a hook belt piece (47) are movably arranged in the head shell (4), a guide groove (474) is arranged on the hook belt piece (47), a guide rod (441) adapted to the guide groove (474) is arranged on the head shell (4), the driving member (45) is slidably arranged on the head shell (4), and a first elastic member (46) for driving the driving member (45) to reset is arranged on the head shell (4), a driving groove (452) is arranged on the driving member (45), and a positioning groove (442) corresponding to the driving groove (452) is arranged on the head shell (4); The driving groove (452) comprises a first driving portion (453) and a second driving portion (454) arranged in a V shape, the first driving portion (453) extends along the sliding direction of the driving member (45), and the positioning groove (442) is provided with a first positioning portion (443) and a second positioning portion (444) arranged in an L shape, and when in use, the fixing pin (471) cooperates with the first driving portion (453) and the first positioning portion (443) at the same time, or the fixing pin (471) cooperates with the second driving portion (454) and the second positioning portion (444) at the same time; The hook belt piece (47) is provided with a fixing pin (471), the fixing pin (471) extends to the side of the hook belt piece (47) and cooperates with the driving groove (452) and the positioning groove (442) respectively, and a limiting convex edge (4713) is provided on the fixing pin (471), and a torsion spring (472) for driving the hook belt piece (47) to return to its original position is sleeved on the fixing pin (471), and the limiting convex edge (4713) is arranged on one side of the torsion spring (472) and prevents the torsion spring (472) from being separated from the fixing pin (471); The driving handle (3) can drive the driving member (45) to lean against the frame (1) so that the driving member (45) and the head shell (4) slide relative to each other, and make the fixing pin (471) move relative to the first driving part (453) to the side of the second driving part (454), and the torsion spring (472) can drive the hook belt piece (47) to reset, so that the fixing pin (471) cooperates with the second driving part (454) and the second positioning part (444) at the same time, so that the hook belt piece (47) presses against or hooks the strap, and controls the driving member (45) to lean against the frame (1) again so that the driving member (45) and the head shell (4) slide relative to each other, and drives the fixing pin (471) to disengage from the second driving part (454) and the second positioning part (444) through the side plate (21) of the second driving part (454), and makes the fixing pin (471) cooperate with the first positioning part (443).

2. A branch tying machine according to claim 1, characterized in that: The fixing pin (471) comprises a pin rod (4711) fixed on the hook belt piece (47), a limiting sleeve (4712) is sleeved on the pin rod (4711), and the outer periphery of the limiting sleeve (4712) extends to form a limiting convex edge (4713).

3. The branch tying machine according to claim 1, characterized in that: The machine base is provided with a strap box (5), the strap box (5) is provided with a mounting protrusion (512) for mounting a strap roll (6), the strap box (5) is provided with a balancing block (7) and a second elastic member (8), and the second elastic member (8) can drive the balancing block (7) to lean against the strap roll (6) and prevent the strap roll (6) from rotating freely.

4. A branch tying machine according to claim 3, characterized in that: The balancing block (7) is slidably arranged on the mounting protrusion (512), and the second elastic member (8) can drive the balancing block (7) to lean against the inner wall of the strap roll (6).

5. A branch tying machine according to claim 4, characterized in that: At least two balancing blocks (7) are arranged on the circumference of the mounting protrusion (512), and the second elastic member (8) can drive the balancing blocks (7) to press against the inner wall of the strap roll (6) respectively.

6. The branch tying machine according to claim 1, characterized in that: The head shell (4) includes a left shell (41) and a right shell (42) which are detachably connected by fasteners, a hook strip (47) and a driving member (45) are arranged between the left shell (41) and the right shell (42), and the rocker arm (2) is bent toward both sides of the head shell (4) and wrapped around both sides of the head shell (4), thereby preventing the left shell (41) and the right shell (42) from loosening or even detaching.

7. A branch tying machine according to claim 6, characterized in that: The left housing (41) or the right housing (42) is provided with a countersunk hole, the fastener is a countersunk screw (43), the rocker arm (2) extends to the end of the countersunk screw (43) and prevents the countersunk screw (43) from being separated from the countersunk hole.

8. A branch tying machine according to claim 6 or 7, characterized in that: The head shell (4) further comprises a detachable partition (44), a driving member (45) and a hook strip (47) are respectively arranged on both sides of the partition (44), and a guide rod (441) and a positioning groove (442) are both arranged on the partition (44).

9. A branch tying machine according to claim 8, characterized in that: The guide rod (441) passes through the partition (44) and is respectively connected to the left shell (41) and the right shell (42), and a limiting guide groove (456) adapted to the guide rod (441) is provided on the driving member (45).

10. The branch tying machine according to claim 1, characterized in that: The second driving part (454) is connected to the lower end of the first driving part (453), the guide groove (474) extends in a direction away from the frame (1), and an inclined pressing surface (491) is provided on the head shell (4), and the upper side of the pressing surface (491) extends in a direction away from the hook belt piece (47); the hook belt piece (47) presses the strap against the pressing surface (491) so that the strap pressing structure can pull the strap.

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