Belt feeding and pressing mechanism of strapping machine

Abstract

The utility model relates to the technical field of strapping machines, in particular to a strapping machine conveying belt pressing mechanism which comprises a machine core seat and an L-shaped pulling arm located on one side of the machine core seat, the L-shaped pulling arm comprises a vertical arm and a transverse arm which are connected with each other, one end of the vertical arm is installed on the machine core seat in a rotating mode, and a vertically-arranged pull rod is fixed to the transverse arm. The bottom end of the pull rod is connected with an elastic piece; a chute is arranged on the movement seat, a connecting rod is inserted into the chute, one end of the connecting rod is fixedly connected with the middle of the vertical arm on one side of the movement seat, the other end of the connecting rod is connected with a traction plate on the other side of the movement seat, and an auxiliary pressing wheel is rotatably arranged on the traction plate. Under the driving of the spring and the pull rod, the L-shaped pull arm acts on the upper end and the lower end of the traction plate to uniformly apply pressure to the auxiliary pressing wheel, so that the situation that the auxiliary pressing wheel jumps in the tape feeding and withdrawing process is avoided, the stable pressing effect is provided, the situation that the strapping tape stops is avoided, and the tape feeding speed is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a strapping machine technical field especially relates to a strapping machine sends the belt compression mechanism. BACKGROUND

[0002] The strapping machine is a kind of tool specially designed for high efficiency, automation is tied and is packed various articles.It is by the automatic sending of the strapping machine inside the strapping band of specific width, and according to the size and weight of the article to be tied, flexibly adjust the tension of strapping band and the size of band loop, to ensure that the article is firmly and closely wrapped.The whole packing process of strapping machine wants to go through sending belt, return belt, tension, both ends of the tape high temperature hot melt treatment etc..Among them, sending belt and return belt are carried out through the cooperation of sending pulley and auxiliary wheel, auxiliary wheel is driven wheel, auxiliary wheel rotates and is installed on the flap, flap rotates and is installed on the machine core seat, and is located at the side of sending pulley, flap free end is connected with pull rod, pull rod is connected with spring, and the auxiliary wheel is pressed down by spring, so that auxiliary wheel and sending pulley are attached, strapping band passes between sending pulley and auxiliary wheel, sending pulley is reversed by forward rotation or, and relies on the extrusion friction force between sending pulley and auxiliary wheel to send belt or return belt.

[0003] The tension mechanism of the prior art auxiliary wheel is not reasonable, the force arm between the pull rod and the driven wheel axis is long, the flap is unevenly pressed, the driven wheel is prone to jumping when the strapping band passes through the driving wheel and the driven wheel, the extrusion force generated by the driven wheel is not stable, and the strapping band may be stagnant, which affects the sending speed, and even cannot complete normal sending or return. UTILITY MODEL CONTENTS

[0004] To solve the problem that the torque between the pull rod and the driven wheel axis in the tension mechanism of the prior art auxiliary wheel is long, the driven wheel is prone to jumping, the extrusion force generated by the driven wheel is not stable, and the strapping band may be stagnant, the utility model provides a strapping machine belt feeding compression mechanism, which has the characteristics of good compression effect and helps to improve the belt feeding speed.

[0005] To achieve the above purpose, the following technical scheme is provided:

[0006] A strapping machine belt feeding compression mechanism, comprising a machine core seat and an L-shaped pulling arm located on one side of the machine core seat, the L-shaped pulling arm comprising a vertical arm and a horizontal arm connected to each other, one end of the vertical arm being rotatably installed on the machine core seat, the horizontal arm being fixed with a vertically arranged pull rod, the bottom end of the pull rod being connected with an elastic member; the machine core seat is provided with an inclined slot, a connecting rod being inserted in the inclined slot, one end of the connecting rod being fixedly connected with the middle part of the vertical arm on one side of the machine core seat, the other end of the connecting rod being connected with a traction plate on the other side of the machine core seat, the traction plate being rotatably provided with an auxiliary compression wheel. The upper part of the traction plate is fixedly connected with the horizontal arm through a connecting rod.

[0007] Further, the top of the machine core seat is provided with an avoiding gap matched with the connecting rod.

[0008] Further, a limiting baffle is arranged on the side of the vertical arm close to the horizontal arm, and an adjusting screw is arranged on the vertical arm, and the end of the adjusting screw abuts against the limiting baffle.

[0009] Further, the traction plate is provided with a mounting hole matched with the auxiliary compression wheel, a fixed plate is arranged outside the mounting hole, and the auxiliary compression wheel is rotatably arranged on the fixed plate; an arc-shaped side wall matched with the shape of the belt feeding wheel is arranged on the side of the traction plate, an opening communicated with the mounting hole is arranged on the arc-shaped side wall, and the outer edge of the auxiliary compression wheel is exposed outside the opening.

[0010] Further, the bottom end of the arc-shaped side wall is provided with an outwardly inclined belt feeding inclined surface.

[0011] The beneficial effects of the utility model are as follows: the bottom of the traction plate is connected with the vertical arm of the L-shaped pulling arm, the upper part of the traction plate is connected with the horizontal arm of the L-shaped pulling arm, under the driving of the spring and the pull rod, the L-shaped pulling arm acts on the upper and lower ends of the traction plate, and uniform pressure is applied to the auxiliary compression wheel, so that the jumping of the auxiliary compression wheel in the belt feeding and withdrawing process is avoided, stable pressing effect is provided, the situation that the binding belt is stagnant is avoided, and the belt feeding speed is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] ATTACHED Figure 1 It is a use structure diagram of a binding machine belt feeding and pressing mechanism;

[0013] ATTACHED Figure 2 It is a use structure diagram of a binding machine belt feeding and pressing mechanism; Figure 1 It is a use structure diagram of a binding machine belt feeding and pressing mechanism;

[0014] ATTACHED Figure 3 It is a use structure diagram of a binding machine belt feeding and pressing mechanism; Figure 1 It is a use structure diagram of a binding machine belt feeding and pressing mechanism;

[0015] ATTACHED Figure 4 It is a use structure diagram of a binding machine belt feeding and pressing mechanism;

[0016] ATTACHED Figure 5 It is a use structure diagram of a binding machine belt feeding and pressing mechanism; Figure 4 It is a use structure diagram of a binding machine belt feeding and pressing mechanism;

[0017] ATTACHED Figure 6 It is a use structure diagram of a binding machine belt feeding and pressing mechanism;

[0018] In the drawing: 1, machine core seat; 2, L-shaped pulling arm; 201, vertical arm; 202, horizontal arm; 3, pull rod; 4, elastic piece; 5, inclined groove; 6, connecting rod; 7, traction plate; 8, auxiliary compression wheel; 9, connecting rod; 10, avoiding gap; 11, limiting baffle; 12, adjusting screw; 13, mounting hole; 14, fixed plate; 15, arc-shaped side wall; 16, opening; 17, belt feeding inclined surface; 18, belt feeding wheel. DETAILED DESCRIPTION

[0019] The following will describe a tape feeding and pressing mechanism of a strapping machine in detail in combination with specific embodiments.

[0020] The tape feeding and pressing mechanism of the strapping machine comprises a machine core base 1 and an L-shaped pulling arm 2 located at one side of the machine core base 1. The L-shaped pulling arm 2 comprises a vertical arm 201 and a horizontal arm 202 which are connected with each other. One end of the vertical arm 201 is rotatably installed on the machine core base 1. The horizontal arm 202 is fixed with a vertically arranged pulling rod 3. The bottom end of the pulling rod 3 is connected with an elastic member 4. The machine core base 1 is provided with an inclined slot 5. A connecting rod 6 is inserted in the inclined slot 5. One end of the connecting rod 6 is fixedly connected with the middle part of the vertical arm 201 at one side of the machine core base 1. The other end of the connecting rod 6 is connected with a traction plate 7 at the other side of the machine core base 1. The upper part of the traction plate 7 is fixedly connected with the horizontal arm 202 through a connecting rod 9. The traction plate 7 is rotatably provided with an auxiliary pressing wheel 8.

[0021] In the embodiment, the outer edge of the auxiliary pressing wheel 8 is exposed outside the edge of the traction plate 7 close to the outer side of the tape feeding wheel 18, so that the auxiliary pressing wheel 8 can be in contact with the tape feeding wheel 18. One end of the vertical arm 201 is fixedly connected with one end of the horizontal arm 202. The vertical arm 201 and the horizontal arm 202 are integrally formed. Weight-reducing holes are further arranged on the side surfaces of the vertical arm 201 and the horizontal arm 202. The elastic member 4 is specifically a spring. One end of the spring is fixedly connected with the bottom part of the pulling rod 3. The other end of the spring is connected with the machine core base 1 or other fixed parts of the strapping machine. The direction of the inclined slot 5 matches the rotation of the hinge joint of the vertical arm 201 on the machine core base 1. Under the pulling force of the spring, the pulling rod 3 drives the L-shaped pulling arm 2 and the traction plate 7 and the auxiliary pressing wheel 8 connected with the L-shaped pulling arm 2 to be attached to the rim of the tape feeding wheel 18. The bottom part of the traction plate 7 is fixedly connected with the vertical arm 201 through the connecting rod 6. The upper part of the traction plate 7 is fixedly connected with the horizontal arm 202. Under the driving of the spring and the pulling rod 3, the L-shaped pulling arm 2 acts on the upper and lower ends of the traction plate 7 to uniformly apply pressure to the auxiliary pressing wheel 8, thereby avoiding the jumping of the auxiliary pressing wheel 8 during the feeding and withdrawing of the tape and providing stable pressing effect.

[0022] In the embodiment, the top part of the machine core base 1 is provided with an avoiding notch 10 matched with the connecting rod 9. Under the pulling force of the elastic member, the pulling rod 3 pulls the L-shaped pulling arm 2. The connecting rod 9 between the horizontal arm 202 and the traction plate 7 is located in the avoiding notch 10. The depth of the avoiding notch 10 can be used to limit the swinging range of the L-shaped pulling arm 2. The side surface of the avoiding notch 10 is arranged in a slope along the rotation path direction of the L-shaped pulling arm 2, so as to facilitate the swinging of the connecting rod 9 in the avoiding notch 10. In addition, the connecting rod 9 in the avoiding notch 10 is also conducive to saving the internal space of the strapping machine.

[0023] A limiting baffle 11 is arranged on the side of the vertical arm 201 close to the horizontal arm 202, and an adjusting screw 12 is arranged on the vertical arm 201, and the end of the adjusting screw 12 abuts against the limiting baffle 11. By adjusting the length of the adjusting screw 12, the angle of the L-shaped pulling arm 2 is controlled, and then the friction between the auxiliary pressing wheel 8 and the belt feeding wheel 18 is adjusted.

[0024] The traction plate 7 is provided with a mounting hole 13 matched with the auxiliary pressing wheel 8, and a fixing plate 14 is arranged outside the mounting hole 13, and the auxiliary pressing wheel 8 is rotatably arranged on the fixing plate 14; the side of the traction plate 7 is provided with an arc-shaped side wall 15 matched with the shape of the belt feeding wheel 18, and the arc-shaped side wall 15 is provided with a gap 16 communicated with the mounting hole 13, and the outer edge of the auxiliary pressing wheel 8 is exposed outside the gap 16. The fixing plate 14 is used for supporting the rotating shaft of the auxiliary pressing wheel 8, and the arc-shaped side wall 15 is used for better matching with the outer contour of the belt feeding wheel 18, and the gap between the arc-shaped side wall 15 and the outer contour of the belt feeding wheel 18 can guide the strapping belt.

[0025] The bottom end of the arc-shaped side wall 15 is provided with an outwardly inclined belt feeding slope 17, and the angle of the belt feeding slope 17 can quickly guide the strapping belt to accurately move towards the arc-shaped side wall 15 of the traction plate 7.

Claims

1. A strapping machine tape feeding and pressing mechanism, characterized in that, The device includes a movement base (1) and an L-shaped pull arm (2) located on one side of the movement base (1). The L-shaped pull arm (2) includes a vertical arm (201) and a horizontal arm (202) connected to each other. One end of the vertical arm (201) is rotatably mounted on the movement base (1). The horizontal arm (202) is fixed with a vertically arranged pull rod (3). The bottom end of the pull rod (3) is connected to an elastic element (4). The movement base (1) is provided with a sloping groove (5). A connecting rod (6) is inserted in the sloping groove (5). One end of the connecting rod (6) is fixedly connected to the middle of the vertical arm (201) on one side of the movement base (1). The other end is connected to a traction plate (7) on the other side of the movement base (1). The upper part of the traction plate (7) is fixedly connected to the horizontal arm (202) through a connecting rod (9). An auxiliary pressure wheel (8) is rotatably provided on the traction plate (7).

2. The strapping machine feeding and pressing mechanism as described in claim 1, characterized in that, The top of the movement base (1) is provided with a clearance notch (10) that cooperates with the connecting rod (9).

3. The strapping machine feeding and pressing mechanism as described in claim 1 or 2, characterized in that, A limiting baffle (11) is provided on the side of the vertical arm (201) near the horizontal arm (202), and an adjusting screw (12) is provided on the vertical arm (201), with the end of the adjusting screw (12) abutting against the limiting baffle (11).

4. The strapping machine feeding and pressing mechanism as described in claim 1 or 2, characterized in that, The traction plate (7) is provided with mounting holes (13) that match the auxiliary pressure roller (8). A fixing plate (14) is provided on the outside of the mounting hole (13). The auxiliary pressure roller (8) is rotatably mounted on the fixing plate (14). The side of the traction plate (7) is provided with an arc-shaped sidewall (15) that matches the shape of the belt feeder (18). The arc-shaped sidewall (15) is provided with a notch (16) that communicates with the mounting hole (13). The outer edge of the auxiliary pressure roller (8) is exposed outside the notch (16).

5. The strapping machine feeding and pressing mechanism as described in claim 3, characterized in that, The traction plate (7) is provided with mounting holes (13) that match the auxiliary pressure roller (8). A fixing plate (14) is provided on the outside of the mounting hole (13). The auxiliary pressure roller (8) is rotatably mounted on the fixing plate (14). The side of the traction plate (7) is provided with an arc-shaped sidewall (15) that matches the shape of the belt feeder (18). The arc-shaped sidewall (15) is provided with a notch (16) that communicates with the mounting hole (13). The outer edge of the auxiliary pressure roller (8) is exposed outside the notch (16).

6. The strapping machine feeding and pressing mechanism as described in claim 4, characterized in that, The bottom end of the arc-shaped sidewall (15) is provided with an outwardly inclined conveyor belt slope (17).

7. The strapping machine feeding and pressing mechanism as described in claim 5, characterized in that, The bottom end of the arc-shaped sidewall (15) is provided with an outwardly inclined conveyor belt slope (17).

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