Belt bonding mechanism of packing machine

Abstract

The invention discloses a belt bonding mechanism of a packing machine, and belongs to the technical field of packing machines. The device mainly solves the problems that an existing belt bonding mechanism dragged by a motor is complex in mechanism, multiple in parts and large in occupied space. The device is mainly characterized by comprising an air cylinder, a belt bonding assembly, a belt bonding fixing cushion block, an eccentric shaft assembly and a motor dragging assembly, wherein the air cylinder, the eccentric shaft assembly and the motor dragging assembly are fixed on the same case body; an air cylinder piston of the air cylinder faces downwards; the upper end of the bonding component is connected with a piston of the cylinder, and the lower end is connected with the eccentric shaft component through the connecting mechanism; the motor dragging assembly is connected with the eccentric shaft assembly through a transmission mechanism; the bonding fixing cushion block is arranged under the belt bonding assembly. The packaging machine head has the advantages of being capable of achieving miniaturization and light weight of the packaging machine head of the automatic packaging machine, and is mainly used for reducing the size and the weight of an existing packaging machine head.

Description

Technical Field

[0001] The invention belongs to the technical field of baling machines, and in particular relates to a belt bonding mechanism of a baling machine. Background Art

[0002] Automatic strapping machines are increasingly widely used in the packaging of products in the manufacturing industry. At present, the most widely used strapping mechanism of strapping machines is mechanical pressure high-frequency swing bonding, and the power source is pneumatic motor and electric motor. The strapping mechanism driven by the motor is characterized by good reliability and continuous operation; but the mechanism is complex, with many parts and large space occupation, and it is difficult to miniaturize and lighten the strapping machine head. Summary of the invention

[0003] The purpose of the present invention is to solve the problem of miniaturization and lightweight design and manufacturing of the baling machine head of the above-mentioned automatic baling machine, and to provide a new belt bonding mechanism driven by a motor.

[0004] The technical solution of the present invention is: a belt bonding mechanism of a baling machine, characterized in that: it includes: a cylinder, a belt bonding assembly, a belt bonding fixing pad, an eccentric shaft assembly and a motor driving assembly; wherein, the cylinder, the eccentric shaft assembly and the motor driving assembly are fixed on the same chassis; the cylinder piston of the cylinder is directed downward; the upper end of the belt bonding assembly is connected to the piston of the cylinder, and the lower end is connected to the eccentric shaft assembly through a connecting mechanism; the motor driving assembly is connected to the eccentric shaft assembly through a transmission mechanism; the bonding fixing pad is arranged directly below the belt bonding assembly.

[0005] In the technical solution of the present invention, the upper end of the belt bonding assembly is connected to the piston of the cylinder through a flexible joint.

[0006] The bonding assembly in the technical solution of the present invention is composed of a cutter body and a bonding knife rod; the lower end of the cutter body is open and is provided with a cavity or space that can accommodate the bonding knife rod; the upper part of the bonding knife rod is connected to the upper end of the cutter body cavity or space through a first cylindrical pin, and the lower part is connected to one end of the connecting mechanism through a second cylindrical pin; the upper end of the bonding knife rod forms a hinge pair with the cutter body, and the lower end of the bonding knife rod forms a hinge pair with the connecting rod of the connecting mechanism.

[0007] In the technical solution of the present invention, the bottom end of the bonding knife rod is provided with a lower end plane matched with the bonding fixed pad; the upper end of the knife head body is movably connected with a cylinder or a movable joint.

[0008] The eccentric shaft assembly in the technical solution of the present invention includes a seat body, a first bearing, a first synchronous pulley, an eccentric shaft, a first oiling nozzle, a second oiling nozzle and a second bearing; the seat body is fixed on the chassis; the eccentric shaft is mounted on the middle part of the seat body through two pairs of first bearings; the first synchronous pulley is mounted on one side of the input end of the eccentric shaft, and the eccentric section position in the middle of the eccentric shaft is connected to the connecting mechanism through a pair of second bearings; the seat body is provided with a first oiling nozzle communicated with the first bearing; the connecting mechanism is provided with a second oiling nozzle communicated with the second bearing.

[0009] In the technical solution of the present invention, a first spacer is provided between the two pairs of first bearings, and a second spacer is provided between a pair of second bearings; the connecting mechanism is composed of a connecting rod head and a connecting rod; a pair of second bearings are installed in the hole at one end of the connecting rod head, and the other end is connected to one end of the connecting rod through a positioning structure and fixed with screws, and the other end of the connecting rod is connected to the lower end of the bonding knife rod in the bonding assembly; the second oiling nozzle is arranged on the connecting rod head.

[0010] In the technical solution of the present invention, an oil injection channel composed of a hole is provided on the seat body between the first bearing and the first oil injection nozzle; an oil injection channel composed of a second oil injection nozzle communicated with the second bearing is provided on the connecting rod head; the connecting rod and the bonding knife rod are connected and transmitted by a hinge pair composed of cylindrical pins, and the rotation of the eccentric shaft is converted into the swing of the bonding knife rod. When the piston of the cylinder moves downward, the lower end plane of the bonding knife rod is driven to appropriately press the strapping tape joint, and then friction, heat and bonding are generated.

[0011] The motor drive assembly in the technical solution of the present invention comprises a motor base, a motor and a second synchronous pulley; the motor base is fixed on the chassis; the motor is fixed on the motor base; and the second synchronous pulley is mounted on the output shaft end of the motor.

[0012] The motor seat in the technical solution of the present invention is fixed on the chassis through the strip-shaped mounting holes, and the fixing position can be adjusted within a certain range according to the tightness of the synchronous belt.

[0013] The transmission mechanism in the technical solution of the present invention is a synchronous belt.

[0014] The present invention has the following positive effects: Compared with other similar mechanisms, the present invention reduces the number of parts used, reduces the size of the parts, and reduces the space occupied by the entire mechanism, thereby reducing the volume and weight of the baler head. After actual manufacturing and use, it fully meets the requirements of actual use occasions.

[0015] The present invention has the characteristics of being able to realize miniaturization and lightness of the baling machine head of the automatic baling machine, and is mainly used to reduce the volume and weight of the existing baling machine head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a general schematic diagram of a belt bonding mechanism of a baling machine according to the present invention.

[0017] Figure 2 A schematic diagram of the internal structure of a component in a strap bonding mechanism of a baler of the present invention Figure 1 .

[0018] Figure 3 A schematic diagram of the internal structure of a component in a strap bonding mechanism of a baler of the present invention Figure 2 .

[0019] In the figure: 1-cylinder, 2-bonded assembly, 3-slip joint, 4-bonded fixed pad, 5-eccentric shaft assembly, 6-synchronous belt, 7-motor drag assembly, 2.1-cutter head body, 2.2-first cylindrical pin, 2.3-bonded knife rod, 2.4-second cylindrical pin, 5.1-seat body, 5.2-first bearing, 5.3-first synchronous pulley, 5.4-eccentric shaft, 5.5-first oiling nozzle, 5.6-first spacer, 5.7-second oiling nozzle, 5.8-second bearing, 5.9-second spacer, 5.10-connecting rod head, 5.11-connecting rod, 7.1-motor seat, 7.2-motor, 7.3-second synchronous pulley. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The described embodiment is only one embodiment of the present invention, not all embodiments.

[0021] Reference Figure 1 , 2 As shown in Figure 3, an embodiment of a motor-driven belt bonding mechanism of the present invention comprises a cylinder 1, a belt bonding assembly 2, a flexible joint 3, a belt bonding fixing pad 4, an eccentric shaft assembly 5, a synchronous belt 6, and a motor-driven assembly 7. Among them, the cylinder 1, the eccentric shaft assembly 5 and the motor-driven assembly 7 are fixed on the same chassis. The belt bonding assembly 2 is linked to the piston of the cylinder 1 through the flexible joint 3, and can only move up and down on the same chassis. The bonding fixing pad 4 is arranged directly below the belt bonding assembly 2. The motor-driven assembly 7 is connected to the eccentric shaft assembly 5 through a transmission mechanism.

[0022] The cylinder piston of cylinder 1 is facing downward.

[0023] The motor drive assembly 7 is composed of a motor seat 7.1, a motor 7.2 and a second synchronous pulley 7.3. The motor seat 7.1 is fixed on the chassis, the motor 7.2 is fixed on the motor seat 7.1, and the second synchronous pulley 7.3 is installed on the output shaft end of the motor 7.2. The motor seat 7.1 is fixed on the chassis through a strip mounting hole, and the fixed position can be adjusted within a certain range according to the tightness of the synchronous belt 6. The second synchronous pulley 7.3 is connected to the first synchronous pulley 5.3 through the synchronous belt 6 for transmission.

[0024] The eccentric shaft assembly 5 is composed of a seat body 5.1, a first bearing 5.2, a first synchronous pulley 5.3, an eccentric shaft 5.4, a first oiling nozzle 5.5 and a second bearing 5.8. The seat body 5.1 is fixed on the chassis. The eccentric shaft 5.4 is mounted on the middle part of the seat body 5.1 through two pairs of first bearings 5.2. The first synchronous pulley 5.3 is mounted on one side of the input end of the eccentric shaft 5.4, and the eccentric section in the middle of the eccentric shaft 5.4 is installed with a connecting mechanism through a pair of second bearings 5.8. The seat body 5.1 is provided with a first oiling nozzle 5.5 that communicates with the first bearing 5.2; a first spacer 5.6 is installed between the two pairs of first bearings 5.2. A second spacer 5.9 is provided between a pair of second bearings 5.8. The seat body 5.1 is provided with an oiling channel formed by a hole between the first bearing 5.2 and the first oiling nozzle 5.5.

[0025] The adhesive assembly 2 is composed of a cutter head body 2.1 and an adhesive knife rod 2.3. The lower end of the cutter head body 2.1 is open and is provided with a cavity, or space, that can accommodate the adhesive knife rod 2.3. The upper end of the cutter head body 2.1 is movably connected to the movable joint 3. The upper part of the adhesive knife rod 2.3 is mounted on the upper part of the cavity of the cutter head body 2.1 through a first cylindrical pin 2.2; the lower part is connected to one end of the connecting mechanism through a second cylindrical pin 2.4.

[0026] The upper end of the bonding knife bar 2.3 forms a hinge pair with the blade body 2.1, so that the bonding knife bar 2.3 can swing appropriately in the inner cavity of the blade body 2.1; the lower end of the bonding knife bar 2.3 forms a hinge pair with the connecting rod 5.11, which drives the bonding knife bar to swing when the eccentric shaft rotates. The bottom end of the bonding knife bar 2.3 is provided with a lower end plane that cooperates with the bonding fixing pad 4.

[0027] The connection mechanism is composed of a connecting rod head 5.10 and a connecting rod 5.11. A pair of second bearings 5.8 are installed in the hole at one end of the connecting rod head 5.10, and the other end is connected to one end of the connecting rod 5.11 through a positioning structure and fixed with screws to facilitate assembly and maintenance of the whole machine; the other end of the connecting rod 5.11 is connected to the lower part of the bonding knife bar 2.3 (the part above the lower end plane). The connecting rod head 5.10 is provided with a second oiling nozzle 5.7 that communicates with the second bearing 5.8 to form an oiling channel.

[0028] The connecting rod 5.11 and the bonding knife bar 2.3 are connected and driven by a hinge composed of a cylindrical pin 2.4, which converts the rotation of the eccentric shaft 5.4 into the swing of the bonding knife bar 2.3. When the piston of the cylinder 1 moves downward, the lower end plane of the bonding knife bar 2.3 is driven to appropriately press the strapping joint, and then friction heat is generated and bonded.

[0029] The mechanism principle is as follows: The belt-receiving and sending mechanism of the baling machine head sends the baling tape joint to the belt bonding and fixing pad 4. After it is in place, the belt-receiving and sending mechanism sends a signal to the electronic control part of the baling machine head; the piston of the cylinder 1 pushes the belt bonding component 2 downward, so that the lower end surface of the bonding knife rod 2.3 appropriately presses the baling tape joint onto the belt bonding and fixing pad 4.

[0030] When the piston of the cylinder 1 moves downward, the motor 7.2 is powered on and started, and the rotational energy of the motor 7.2 is transmitted to the eccentric shaft 5.4 through the second synchronous pulley 7.3 fixed to the output shaft end of the motor 7.2, the synchronous belt 6 and the first synchronous pulley 5.3.

[0031] The eccentric structure converts the rotational energy of the eccentric shaft 5.4 into a reciprocating movement of the connecting rod head 5.10 according to the eccentricity of the eccentric shaft 5.4.

[0032] The connecting rod 5.11 and the lower end of the bonding connecting rod 2.3 form a hinge pair with a cylindrical pin 2.4, and the reciprocating motion of the connecting rod 5.11 drives the bonding connecting rod 2.3 to swing, driving the upper and lower joint surfaces of the joint to generate friction and heat, so that the joint is bonded.

[0033] A first spacer 5.6 is installed between the two pairs of first bearings 5.2 in the eccentric shaft assembly 5, and a second spacer 5.9 is installed between the other pair of second bearings 5.8, to ensure proper clearance between each pair of bearings for lubrication. A first oiling nozzle 5.5 is installed at the installation housing portion at the clearance between the two pairs of first bearings 5.2; a second oiling nozzle 5.7 is installed at the installation housing portion at the clearance between the other pair of second bearings 5.8, both of which form oiling channels with the holes at the corresponding portions of the housing to lubricate the bearings.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and design concepts of the present invention, which should be covered by the protection scope of this application.

Claims

1. A strap bonding mechanism for a baler, characterized by: The invention comprises a cylinder (1), an adhesive tape assembly (2), an adhesive tape fixing pad (4), an eccentric shaft assembly (5) and a motor drive assembly (7); wherein the cylinder (1), the eccentric shaft assembly (5) and the motor drive assembly (7) are fixed on the same chassis; the cylinder piston of the cylinder (1) faces downward; the upper end of the adhesive tape assembly (2) is connected to the piston of the cylinder (1), and the lower end is connected to the eccentric shaft assembly (5) via a connecting mechanism; the motor drive assembly (7) is connected to the eccentric shaft assembly (5) via a transmission mechanism; and the adhesive tape fixing pad (4) is arranged directly below the adhesive tape assembly (2).

2. The strap bonding mechanism of a baler according to claim 1, characterized in that: The upper end of the belt bonding assembly (2) is connected to the piston of the cylinder (1) via a flexible joint (3).

3. A strap bonding mechanism for a baler according to claim 1 or 2, characterized in that: The adhesive component (2) is composed of a cutter head body (2.1) and an adhesive knife rod (2.3); the lower end of the cutter head body (2.1) is open and is provided with a cavity or space capable of accommodating the adhesive knife rod (2.3); the upper part of the adhesive knife rod (2.3) is connected to the upper end of the cutter head body cavity or space via a first cylindrical pin (2.2), and the lower part is connected to one end of a connecting mechanism via a second cylindrical pin (2.4); the upper end of the adhesive knife rod (2.3) forms a hinge pair with the cutter head body (2.1), and the lower end of the adhesive knife rod (2.3) forms a hinge pair with a connecting rod (5.11) of the connecting mechanism.

4. The strap bonding mechanism of a baler according to claim 3, characterized in that: The bottom end of the bonding knife rod (2.3) is provided with a lower end plane that cooperates with the bonding fixing pad (4); the upper end of the knife head body (2.1) is movably connected to the cylinder (1) or the movable joint (3).

5. A strap bonding mechanism for a baler according to any one of claims 1-2 and 4, characterized in that: The eccentric shaft assembly (5) comprises a seat body (5.1), a first bearing (5.2), a first synchronous pulley (5.3), an eccentric shaft (5.4), a first oiling nozzle (5.5), a second oiling nozzle (5.7) and a second bearing (5.8); the seat body (5.1) is fixed on the chassis; the eccentric shaft (5.4) is mounted on the middle part of the seat body (5.1) via two pairs of first bearings (5.2); the first synchronous pulley (5.3) is mounted on one side of the input end of the eccentric shaft (5.4), and the eccentric section in the middle of the eccentric shaft (5.4) is connected to the connecting mechanism via a pair of second bearings (5.8); the seat body (5.1) is provided with a first oiling nozzle (5.5) which is in communication with the first bearing (5.2); and the connecting mechanism is provided with a second oiling nozzle (5.7) which is in communication with the second bearing (5.8).

6. The strap bonding mechanism of a baler according to claim 5, characterized in that: A first spacer (5.6) is provided between the two pairs of first bearings (5.2), and a second spacer (5.9) is provided between the pair of second bearings (5.8); the connection mechanism is composed of a connecting rod head (5.10) and a connecting rod (5.11); a pair of second bearings (5.8) are installed in a hole at one end of the connecting rod head (5.10), and the other end is connected to one end of the connecting rod (5.11) through a positioning structure and fixed with screws, and the other end of the connecting rod (5.11) is connected to the lower end of the adhesive knife rod (2.3) in the adhesive assembly (2); the second oiling nozzle (5.7) is arranged on the connecting rod head (5.10).

7. The strap bonding mechanism of a baler according to claim 6, characterized in that: The seat body (5.1) is provided with an oil injection passage formed by a hole between the first bearing (5.2) and the first oil injection nozzle (5.5); the connecting rod head (5.10) is provided with an oil injection passage formed by a second oil injection nozzle (5.7) communicating with the second bearing (5.8); the connecting rod (5.11) and the bonding knife rod (2.3) are connected and driven by a hinge pair composed of cylindrical pins (2.4), the rotation of the eccentric shaft (5.4) is converted into the swing of the bonding knife rod (2.3), and the piston of the cylinder (1) moves downward to drive the lower end plane of the bonding knife rod (2.3) to appropriately press the strapping tape joint, and then frictionally heat and bond it.

8. A strap bonding mechanism for a baler according to any one of claims 1-2, 4, 6-7, characterized in that: The motor drive assembly (7) comprises a motor seat (7.1), a motor (7.2) and a second synchronous pulley (7.3); the motor seat (7.1) is fixed on the chassis; the motor (7.2) is fixed on the motor seat (7.1); and the second synchronous pulley (7.3) is mounted on the output shaft end of the motor (7.2).

9. The strap bonding mechanism of a baler according to claim 8, characterized in that: The motor seat (7.1) is fixedly mounted on the chassis body via the strip-shaped mounting holes, and the fixed position can be adjusted within a certain range according to the tightness of the synchronous belt (6).

10. A strap bonding mechanism for a baler according to any one of claims 1-2, 4, 6-7, and 9, characterized in that: The transmission mechanism is a synchronous belt (6).

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