Efficient and stable packing machine

Abstract

The utility model discloses an efficient and stable packing machine, including friction pressing knife, lift arm, lift drive device and horizontal drive mechanism, horizontal drive mechanism includes motor, transmission shaft sleeve, roller, sliding plate, connecting rod and swing link, lift drive device is installed on the frame, lift arm is connected with lift drive device output end, and the friction pressing knife is connected with the swing link. The upper end of the swing rod is hinged to the lifting arm, the lower end of the swing rod is hinged to the friction pressing cutter, the motor is installed on the rack, the transmission shaft sleeve is connected to an output shaft of the motor, the sliding plate is slidably connected with the rack, the rollers are symmetrically arranged and rotationally connected with the sliding plate, the front end of the sliding plate is hinged to the connecting rod, and the front end of the connecting rod is hinged to the swing rod. A driving boss is arranged on the transmission shaft sleeve, the front end face and the rear end face of the driving boss are in rolling fit with the two rolling wheels respectively, and crest parts and trough parts are arranged on the front end face and the rear end face of the driving boss at intervals. Compared with the prior art, the friction welding device is compact in structure, and the friction welding efficiency of the packing machine can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packing machines, and particularly relates to an efficient and stable packing machine. Background Art

[0002] In the early 1960s, with the emergence of polypropylene materials, foreign countries successfully developed polypropylene plastic belt packing machines, which gradually replaced steel belt bundling in many fields, especially in the light industry field, and the packing machines were rapidly popularized. The whole packing process of the bundling packing machine has to go through several steps, including tape feeding, tape feeding in place, pressing the head end of the tape, tape retracting, pressing the tail end of the tape, tape cutting, the welding mechanism making a buckle, the bottom plate opening to spit out the tape, and the machine head resetting. In these steps, the actions of the cutter have a certain sequence.

[0003] Most of the friction pressing knives of traditional packing machines are driven by motors, and the friction pressing knives and the motors are connected by a belt transmission mechanism or a cam mechanism. During long-term use, the belt of the belt transmission mechanism is prone to damage, and the installation space required by the belt transmission mechanism is relatively large, resulting in an insufficiently compact overall structure of the packing machine. The Chinese invention patent with the patent publication number of CN112027238B discloses a bundling packing machine that can perform friction welding on the bundling belt to make a buckle. In the above patent, the friction pressing knife is connected and driven by a cam mechanism, and the action timing is determined by the shape and position of the cam corresponding to each cutter. However, the pushing stroke of the cam is used as the working stroke, and the stroke of the cutter is limited by the shape of the cam. When the cutter wears or the thickness of the belt changes, it is necessary to manually adjust the length of the cutter or replace the cutter, which is inconvenient to use and requires high requirements for the operators.

[0004] In view of this, the applicant has conducted in-depth research on the above problems, and thus this case has arisen. Summary of the Invention

[0005] The main purpose of the utility model is to provide an efficient and stable packing machine, which can effectively improve the friction frequency of the friction pressing knife, thereby improving the friction welding efficiency, making the driving of the friction pressing knife more stable, and at the same time making the overall structure of the packing machine more concise and compact.

[0006] To achieve the above object, the solution of the utility model is:

[0007] A highly efficient and stable baler comprises a friction cutter, a lifting arm, a lifting drive device and a horizontal driving mechanism. The horizontal driving mechanism comprises a motor, a transmission sleeve, a roller, a sliding plate, a connecting rod and a swing rod. The lifting drive device is mounted on a frame. The lifting arm is connected to the output end of the lifting drive device. The upper end of the swing rod is hinged to the lifting arm, and the lower end of the swing rod is hinged to the friction cutter. The motor is mounted on the frame. The transmission sleeve is connected to the output shaft of the motor. The sliding plate is slidably connected to the frame. Two rollers are symmetrically arranged and rotatably connected to the sliding plate. The front end of the sliding plate is hinged to the connecting rod, and the front end of the connecting rod is hinged to the swing rod. A driving boss is provided on the transmission sleeve. The front and rear end surfaces of the driving boss are respectively in rolling contact with the two rollers, and the front and rear end surfaces of the driving boss have wave crests and wave troughs arranged at intervals.

[0008] Furthermore, the frame includes a main frame, a mounting frame and a side cover. The mounting frame is fixedly mounted on the main frame, the motor is mounted on the mounting frame, a housing cavity for accommodating rollers and a motor output shaft is provided inside the mounting frame, a mounting groove is provided on the side of the mounting frame, the side cover is fixedly connected in the mounting groove, and a sliding plate is slidably connected in the mounting groove.

[0009] Furthermore, the side cover is provided with a clearance groove and a guide slide groove, and the sliding plate is slidably connected in the guide slide groove.

[0010] Furthermore, the upper side wall and the lower side wall of the guide groove are provided with a first receiving groove, the upper surface and the lower surface of the sliding plate are provided with a second receiving groove, and rolling-connected balls are provided in the first receiving groove and the second receiving groove, and threaded holes are provided at both ends of the second receiving groove, and limiting screws are connected in the threaded holes.

[0011] Furthermore, it also includes a front pressure head, a first driving rod and a first cylinder. A connecting seat is provided on the frame. The front pressure head is arranged in the connecting seat and is slidably connected up and down. The front end of the first driving rod is hinged to the connecting seat, the first cylinder is hinged to the frame, the piston rod of the first cylinder is hinged to the rear end of the first driving rod, and a first strip hole is provided in the middle of the first driving rod. The upper end of the front pressure head is hinged to the first driving rod through the first strip hole.

[0012] Furthermore, it also includes a rear pressure head, a second driving rod and a second cylinder. The rear pressure head is arranged in a connecting seat and is slidably connected up and down. The front end of the second driving rod is hinged to the connecting seat, the second cylinder is hinged to the frame, the piston rod of the second cylinder is hinged to the rear end of the second driving rod, and a second strip hole is provided in the middle of the second driving rod. The upper end of the rear pressure head is hinged to the second driving rod through the second strip hole.

[0013] Furthermore, a swing groove is provided inside the lifting arm, a swing rod is arranged in the swing groove and hinged with the side wall of the swing groove, and a cutter is provided at the lower end of the lifting arm.

[0014] Further, the lifting drive device is a cylinder.

[0015] Compared with the prior art, the beneficial effects are as follows: The present invention drives the roller and the sliding plate to swing back and forth through the driving boss, then drives the lower end of the swing rod to swing back and forth, and then drives the friction pressing knife to perform friction welding. The connection structure between the components is more compact and tight, the swing of the swing rod is more stable during driving, and at the same time, the sliding plate is driven to slide back and forth through the peak part and the valley part of the driving boss, which can effectively improve the swing frequency of the sliding plate and the friction pressing knife, and then improve the friction welding efficiency of the friction pressing knife, greatly improving the packing efficiency of the packing machine. Description of the Drawings

[0016] Figure 1 It is a three-dimensional view of the external structure of the present invention.

[0017] Figure 2 It is a side view of the cross-sectional structure of the horizontal drive mechanism.

[0018] Figure 3 It is a top view of the cross-sectional structure of the horizontal drive mechanism.

[0019] Figure 4 It is a cross-sectional view of the connection structure of the rear pressing head.

[0020] Figure 5 It is a cross-sectional view of the connection structure of the front pressing head.

[0021] Figure 6 It is a three-dimensional view of the connection structure between the sliding plate and the side cover.

[0022] Figure 7 It is a three-dimensional view of the external structure of the transmission shaft sleeve.

[0023] Figure 8 It is a three-dimensional view of the external structure of the mounting frame body.

[0024] Figure 9 It is a three-dimensional view of the external structure of the side cover.

[0025] In the figure: friction pressing knife 11, lifting arm 12, swing groove 121, cutting knife 122, lifting drive device 13, horizontal drive mechanism 2, motor 21, transmission shaft sleeve 22, driving boss 221, peak part 2211, valley part 2212, roller 23, sliding plate 24, second accommodating groove 241, ball 242, limit screw 243, connecting rod 25, swing rod 26, main frame body 3, connecting seat 31, mounting frame body 4, accommodating cavity 41, mounting groove 42, side cover 5, relief groove 51, guide chute 52, first accommodating groove 521, front pressing head 61, first driving rod 62, first cylinder 63, rear pressing head 64, second driving rod 65, second cylinder 66. Detailed Embodiments

[0026] To further explain the technical solution of the present invention, the present invention will be elaborated in detail through specific embodiments below.

[0027] As Figures 1-9 shown, an efficient and stable strapping machine includes a friction pressing knife 11, a lifting arm 12, a lifting driving device 13 and a horizontal driving mechanism 2. The horizontal driving mechanism 2 includes a motor 21, a transmission shaft sleeve 22, rollers 23, a sliding plate 24, a connecting rod 25 and a swing rod 26. The lifting driving device 13 is installed on the frame. The lifting driving device 13 can be selected as a cylinder or a hydraulic cylinder. The lifting arm 12 is connected to the output end of the lifting driving device 13. A swing groove 121 is provided inside the lifting arm 12. The swing rod 26 is arranged in the swing groove 121, and the upper end of the swing rod 26 is hinged to the side wall of the swing groove 121. A cutting knife 122 is provided at the lower end of the lifting arm 12. The lifting driving device 13 can drive the lifting arm 12 to move up and down, drive the friction pressing knife 11 to approach or move away from the strapping tape, and when the lifting arm 12 drives the cutting knife 122 to descend, the remaining part of the welded strapping tape can be cut. The lower end of the swing rod 26 is hinged to the friction pressing knife 11. The motor 21 is installed on the frame. The transmission shaft sleeve 22 is connected to the output shaft of the motor 21. The sliding plate 24 is slidably connected to the frame. The sliding direction of the sliding plate 24 is parallel to the axis direction of the transmission shaft sleeve 22. Two rollers 23 are symmetrically arranged. The roller shafts of the rollers 23 are positioned and rotatably connected to the sliding plate 24 through bearings. The axis directions of the two rollers 23 are perpendicular to the axis direction of the transmission shaft sleeve 22. The front end of the sliding plate 24 is hinged to the connecting rod 25. The front end of the connecting rod 25 is hinged to the swing rod 26. An outwardly protruding cylindrical driving boss 221 is provided on the transmission shaft sleeve 22. The driving boss 221 is arranged between the two rollers 23. The front and rear end faces of the driving boss 221 are respectively in rolling contact with the two rollers 23. The front and rear end faces of the driving boss 221 have wave crest portions 2211 and wave trough portions 2212 arranged at intervals, and the wave crest portion 2211 on the front end face corresponds to the wave trough portion 2212 on the rear end face, and the wave trough portion 2212 on the front end face corresponds to the wave crest portion 2211 on the rear end face. In this embodiment, there are four wave crest portions 2211 and wave trough portions 2212 respectively, so that the end face of the driving boss 221 extends in a wavy shape.

[0028] After adopting the above structure, the motor 21 drives the transmission sleeve 22 to rotate. When the transmission sleeve 22 rotates, the peak 2211 and the trough 2212 of the boss 221 are driven to contact the roller 23 alternately. After the roller 23 is pressed against the peak 2211 and the trough 2212, it moves forward and backward along the axis direction of the transmission sleeve 22, thereby driving the sliding plate 24 to translate rapidly and repeatedly forward and backward. The sliding plate 24 is driven by the connecting rod 25 to drive the lower end of the swing rod 26 to swing rapidly and repeatedly, thereby driving the friction knife 11 to perform friction welding on the strapping tape. In this process, since the sliding plate 24 moves repeatedly at a faster frequency and is shorter, the swing of the friction knife 11 driven by the lower end of the swing rod 26 is approximately a straight line forward and backward movement, making the friction knife 11 move faster and more smoothly, effectively accelerating the welding efficiency and the stability of the movement of the friction knife 11. In addition, the swing amplitude of the swing rod 26 is smaller, which can reduce the force on the swing rod 26 and improve the service life of the swing rod 26.

[0029] In this embodiment, in order to make the installation structure of the horizontal drive mechanism more compact and further improve the stability of the translation of the sliding plate 24, the frame includes a main frame 3, a mounting frame 4 and a side cover 5. The mounting frame 4 is fixedly mounted on the main frame 3, the motor 21 is mounted on the mounting frame 4, the mounting frame 4 is provided with a receiving cavity 41 for accommodating the roller 23 and the output shaft of the motor 21, the side of the mounting frame 4 is provided with a mounting groove 42, and the side cover 5 is fixedly connected in the mounting groove 42, so that the installation is more compact and firm. The sliding plate 24 is provided in the mounting groove 42 for sliding connection. Specifically, the side cover 5 is provided with a clearance groove 51 and a guide groove 52. The clearance groove 51 can make way for the bearing or roller shaft of the roller 23 when the sliding plate 24 translates. The sliding plate 24 is provided in the guide groove 52 for sliding connection. The upper side wall and the lower side wall of the guide groove 52 are provided with a first receiving groove 521, and the upper surface and the lower surface of the sliding plate 24 are provided with a second receiving groove 241. The first receiving groove 521 and the second receiving groove 241 are provided with rolling balls 242, and the two ends of the second receiving groove 241 are provided with threaded holes, and the threaded holes are connected with limit screws 243. The limit screws 243 can limit the ball 242 to prevent the ball 242 from slipping out of the first receiving groove 521 and the second receiving groove 241. The ball 242 can guide and limit the sliding plate 24 and the guide groove 52, so that the sliding plate 24 slides more smoothly, and a sealing member can be added between the mounting frame 4 and the side cover 5 and the main frame 3 for sealing connection, so that a sealed space is formed inside the receiving chamber 41 for adding lubricating oil and performing oil-soaking lubrication on the components inside the receiving chamber 41, further improving the service life of the new baler.

[0030] In the packing machine of the present utility model, a feeding mechanism and a tape guide groove are further provided on the frame. The feeding mechanism and the tape guide groove are used for conveying the binding tape. The feeding mechanism and the tape guide groove are conventional prior arts disclosed in the background art, so no further elaboration will be made here. In this embodiment, the friction pressing knife 11 is arranged above the tape guide groove. In order to fix the binding tape during friction welding, the present utility model further includes a front pressing head 61, a first driving rod 62, a first cylinder 63, a rear pressing head 64, a second driving rod 65 and a second cylinder 66. A connecting seat 31 is provided on the frame. The front pressing head 61 is arranged in the connecting seat 31 and is connected to slide up and down. The front end of the first driving rod 62 is hinged to the connecting seat 31. The first cylinder 63 is hinged to the frame. The piston rod of the first cylinder 63 is hinged to the rear end of the first driving rod 62. A first strip-shaped hole is provided in the middle of the first driving rod 62. The upper end of the front pressing head 61 is hinged to the first driving rod 62 through the first strip-shaped hole. The rear pressing head 64 is arranged in the connecting seat 31 and is connected to slide up and down. The front end of the second driving rod 65 is hinged to the connecting seat 31. The second cylinder 66 is hinged to the frame. The piston rod of the second cylinder 66 is hinged to the rear end of the second driving rod 65. A second strip-shaped hole is provided in the middle of the second driving rod 65. The upper end of the rear pressing head 64 is hinged to the second driving rod 65 through the second strip-shaped hole. After adopting the above structure, during welding, the first cylinder 63 and the second cylinder 66 can respectively drive the first driving rod 62 and the second driving rod 65 to swing, so as to drive the front pressing head 61 and the rear pressing head 64 to press down the binding tape, and press and fix the binding tape in the tape guide groove. It avoids the deviation of the binding tape during friction welding and improves the friction welding quality of the binding tape.

[0031] Compared with the prior art, the beneficial effect is that the present novel drives the roller 23 and the sliding plate 24 to swing back and forth through the driving boss 221, then drives the lower end of the swing rod 26 to swing back and forth, and then drives the friction pressing knife 11 to perform friction welding. The connection structure between the components is more compact and tight. When driving, the swing rod 26 swings more smoothly. At the same time, by driving the sliding plate 24 to slide back and forth through the peak part 2211 and the valley part 2212 of the driving boss 221, the swinging frequency of the sliding plate 24 and the friction pressing knife 11 can be effectively improved, and then the friction welding efficiency of the friction pressing knife 11 is improved, greatly improving the packing efficiency of the packing machine.

[0032] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by those of ordinary skill in the technical field to which it belongs shall be regarded as not departing from the patent scope of the present utility model.

Claims

1. An efficient and stable baler, characterized in that: It includes a friction press, a lifting arm, a lifting drive device and a horizontal driving mechanism. The horizontal driving mechanism includes a motor, a transmission sleeve, a roller, a sliding plate, a connecting rod and a swing rod. The lifting drive device is installed on a frame, the lifting arm is connected to the output end of the lifting drive device, the upper end of the swing rod is hinged to the lifting arm, and the lower end of the swing rod is hinged to the friction press, the motor is installed on the frame, the transmission sleeve is connected to the output shaft of the motor, the sliding plate is slidably connected to the frame, the two rollers are symmetrically arranged and rotatably connected to the sliding plate, the front end of the sliding plate is hinged to the connecting rod, the front end of the connecting rod is hinged to the swing rod, and a driving boss is provided on the transmission sleeve. The front and rear end surfaces of the driving boss are respectively rollingly fitted with the two rollers, and the front and rear end surfaces of the driving boss have wave crests and wave troughs arranged at intervals.

2. An efficient and stable baler as claimed in claim 1, characterized in that: The frame includes a main frame, a mounting frame and a side cover. The mounting frame is fixedly mounted on the main frame, the motor is mounted on the mounting frame, a housing cavity for accommodating rollers and a motor output shaft is provided inside the mounting frame, a mounting groove is provided on the side of the mounting frame, the side cover is fixedly connected in the mounting groove, and a sliding plate is slidably connected in the mounting groove.

3. An efficient and stable baler as claimed in claim 2, characterized in that: The side cover is provided with a giving way groove and a guide slide groove, and the sliding plate is arranged in the guide slide groove for sliding connection.

4. An efficient and stable baler as claimed in claim 3, characterized in that: The upper side wall and the lower side wall of the guide groove are provided with a first receiving groove, the upper surface and the lower surface of the sliding plate are provided with a second receiving groove, and rolling balls are provided in the first receiving groove and the second receiving groove. Threaded holes are provided at both ends of the second receiving groove, and limiting screws are connected in the threaded holes.

5. An efficient and stable baler as claimed in claim 2, characterized in that: It also includes a front pressure head, a first driving rod and a first cylinder. A connecting seat is provided on the frame. The front pressure head is arranged in the connecting seat and is slidably connected up and down. The front end of the first driving rod is hinged to the connecting seat, the first cylinder is hinged to the frame, the piston rod of the first cylinder is hinged to the rear end of the first driving rod, a first strip hole is provided in the middle of the first driving rod, and the upper end of the front pressure head is hinged to the first driving rod through the first strip hole.

6. An efficient and stable baler as claimed in claim 5, characterized in that: It also includes a rear pressure head, a second driving rod and a second cylinder. The rear pressure head is arranged in a connecting seat and is slidably connected up and down. The front end of the second driving rod is hinged to the connecting seat, the second cylinder is hinged to the frame, the piston rod of the second cylinder is hinged to the rear end of the second driving rod, and a second strip hole is provided in the middle of the second driving rod. The upper end of the rear pressure head is hinged to the second driving rod through the second strip hole.

7. The efficient and stable baler according to claim 1, characterized in that: A swing groove is arranged inside the lifting arm, a swing rod is arranged in the swing groove and is hinged with the side wall of the swing groove, and a cutter is arranged at the lower end of the lifting arm.

8. The efficient and stable baler according to claim 1, characterized in that: The lifting drive device is a cylinder.

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