A feed cutting device for an elastic band machine

Abstract

This utility model discloses a feeding and cutting device for an elastic band machine, including an ultrasonic welding joint, a pusher plate, and a pusher block arranged opposite each other. A first clamping plate is provided on one side of the ultrasonic welding joint, and a second clamping plate is provided on the other side. The second clamping plate is connected to a clamping cylinder that drives it to cooperate with the first clamping plate to clamp the elastic band. The pusher plate is connected to a first pushing cylinder that drives it to move back and forth. The pusher plate has a first through groove for the pusher block to pass through, and the pusher block is connected to a second pushing cylinder that drives it to move back and forth. In this utility model, the first pushing cylinder drives the pusher plate to push the elastic band ring to the front of the ultrasonic welding joint. The clamping cylinder drives the second clamping plate to cooperate with the first clamping plate to clamp the elastic band ring, aligning the front and rear positions of the elastic band ring. Subsequently, the second pushing cylinder drives the pusher block to push the elastic band ring into contact with the ultrasonic welding joint, welding the elastic band ring together. The welding of the interface is completed simultaneously with the cutting, improving work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of industrial sewing machines, specifically a feeding and cutting device for an elastic band machine. Background Technology

[0002] The invention patent with patent number 202123100948.9 discloses a sewing machine for sewing and fixing elastic bands, including a second motor fixed on a mounting plate, the output shaft of the second motor being connected to a first gripper; a feed plate for conveying elastic bands is provided in the middle of the frame, and an ultrasonic welding joint fixedly connected to the frame is provided below the feed plate; the first gripper clamps the head of the elastic band at the output port of the feed plate, pulls it out and rotates it to be placed on the elastic band body of the feed plate, and the head of the elastic band and the elastic band are welded into a ring by the ultrasonic welding joint.

[0003] The patent discloses an automated process for clamping, pulling out, rotating, and placing the rubber band head onto the rubber band body for welding. After welding, the rubber band ring interface is neat and flat. However, the two ends of a rubber band ring interface need to be cut separately, and misalignment may occur at the interface. There is potential for further improvement in processing performance and production assembly. Summary of the Invention

[0004] This utility model addresses the aforementioned technical problems by providing a feeding and cutting device for an elastic band machine. After aligning the front and rear positions of the elastic band ring, the elastic band ring is then welded together, ensuring a flat and aligned interface and improving work efficiency.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a feeding and cutting device for an elastic band machine, including an ultrasonic welding joint, a pusher plate and a pusher block arranged opposite to each other. A first clamping plate is provided on one side of the ultrasonic welding joint, and a second clamping plate is provided on the other side of the ultrasonic welding joint. The second clamping plate is connected to a clamping cylinder that drives it to cooperate with the first clamping plate to clamp the elastic band. The pusher plate is connected to a first pusher cylinder that drives it to move back and forth. The pusher plate is provided with a first through groove for the pusher block to pass through. The pusher block is connected to a second pusher cylinder that drives it to move back and forth.

[0006] To optimize the above technical solution, the present invention also includes the following improved technical solutions.

[0007] The first clamping plate mentioned above includes a first upper clamping plate and a first lower clamping plate, and the second clamping plate includes a second upper clamping plate and a second lower clamping plate; the drive rod of the clamping cylinder is connected to the second upper clamping plate, and the second upper clamping plate is connected to the second lower clamping plate through a first connecting plate. A horizontally arranged moving groove is formed in the first connecting plate, and the moving groove is located outside the ultrasonic welding joint.

[0008] The feeding and cutting device includes a left side plate and a right side plate fixed on the frame. A first mounting seat for fixing the ultrasonic welding joint and a second mounting seat for fixing the second pushing cylinder are provided between the left side plate and the right side plate. The first pushing cylinder is fixedly installed on the inner side of the left side plate and the right side plate, and the clamping cylinder is fixed above the ultrasonic welding joint through a third mounting seat.

[0009] A first material support plate and a second material support plate are provided at an interval between the left and right side plates mentioned above; the output end of the first material support plate is provided with a rotating first feeding wheel, and the first feeding wheel is connected to a first motor that drives it to rotate; the input end of the second material support plate is provided with a rotating second feeding wheel, and the second feeding wheel is connected to a second motor that drives it to rotate.

[0010] The first motor and the second motor are fixed on the right side plate. The drive shaft of the first motor is rotatably connected to the first feeding wheel, and the drive shaft of the second motor is rotatably connected to the second feeding wheel.

[0011] Above the aforementioned first feeding wheel, there is a first pressing wheel that cooperates with the first feeding wheel to press the elastic band. The first pressing wheel is connected to a pressing cylinder that drives its opening and closing.

[0012] The aforementioned pressing cylinder is fixed on the right side plate, and the first pressing wheel is connected to the pressing cylinder through the first crank. The first pressing wheel is rotatably mounted on one end of the first crank, and the other end of the first crank is rotatably mounted on the right side plate. The other end of the first crank is connected to the drive rod of the pressing cylinder.

[0013] A distance-counting wheel is installed on the conveyor path of the elastic band, and a motion encoder is installed on the distance-counting wheel to measure the conveying length of the elastic band.

[0014] Compared with existing technologies, the feeding and cutting device of this utility model uses a first pushing cylinder to drive a pushing plate to move the elastic band ring to the front of the ultrasonic welding joint. A clamping cylinder then drives a second clamping plate to cooperate with the first clamping plate to clamp the elastic band ring, aligning the front and rear parts of the elastic band ring. Subsequently, a second pushing cylinder drives a pushing block to push the elastic band ring into contact with the ultrasonic welding joint, fusing the elastic band ring. This simultaneous cutting and welding of the joint improves work efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0016] Figure 2 yes Figure 1 Side view.

[0017] Figure 3 yes Figure 1 A partial three-dimensional structural diagram.

[0018] Figure 4 yes Figure 1A partial 3D structural diagram from another perspective. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Figures 1 to 4 The diagram shown is a structural schematic of this utility model.

[0021] The attached figures are labeled as follows: left side plate 1, right side plate 2, first material support plate 3, second material support plate 4, first feeding wheel 5, second feeding wheel 6, ultrasonic welding joint 7, pusher plate 8, first through groove 8a, pusher block 9, first upper clamping plate 10a, first lower clamping plate 10b, second upper clamping plate 11a, second lower clamping plate 11b, first motor 12, second motor 13, first pressure wheel 14, pressure cylinder 15, first crank 16, distance measuring wheel 17, first mounting base 18, first pusher cylinder 19, second pusher cylinder 20, second mounting base 21, clamping cylinder 22, third mounting base 23, first connecting plate 24, moving groove 24a.

[0022] The present invention relates to a feeding and cutting device for an elastic band machine, comprising a left side plate 1 and a right side plate 2 fixed on the machine frame.

[0023] A first material support plate 3 and a second material support plate 4 are provided at an interval between the left side plate 1 and the right side plate 2. The output end of the first material support plate 3 is provided with a first feeding wheel 5, and the input end of the second material support plate 4 is provided with a second feeding wheel 6. Below the first material support plate 3 and the second material support plate 4, there are ultrasonic welding joints 7, pusher plates 8 and pusher blocks 9 arranged opposite to each other. One side of the ultrasonic welding joint 7 is provided with a first clamping plate, and the other side of the ultrasonic welding joint 7 is provided with a second clamping plate that cooperates with the first clamping plate.

[0024] The first feeding wheel 5 is connected to a first motor 12 that drives its rotation, and the second feeding wheel 6 is connected to a second motor 13 that drives its rotation. The first motor 12 and the second motor 13 are fixed on the right side plate 2. The drive shaft of the first motor 12 is rotatably connected to the first feeding wheel 5, and the drive shaft of the second motor 13 is rotatably connected to the second feeding wheel 6.

[0025] A rotating first pressing roller 14 is located above the first feeding roller 5. The first pressing roller 14 is connected to a pressing cylinder 15 that drives its opening and closing. The pressing cylinder 15 is fixed on the right side plate 2, and the first pressing roller 14 is connected to the pressing cylinder 15 via a first crank 16. The first pressing roller 14 is rotatably mounted on one end of the first crank 16, and the other end of the first crank 16 is rotatably mounted on the right side plate 2. The other end of the first crank 16 is connected to the drive rod of the pressing cylinder 15. When discharging material, the pressing cylinder 15 drives the first pressing roller 14 to open; when feeding material, the pressing cylinder 15 drives the first pressing roller 14 to press the elastic band on the first feeding roller 5.

[0026] A distance-counting wheel 17 is provided on the conveying path of the elastic band, and a motion encoder for measuring the conveying length of the elastic band is installed on the distance-counting wheel 17. In a preferred embodiment, the distance-counting wheel 17 is located at the output end of the first material support plate 3. When the elastic band is conveyed, the distance-counting wheel 17 rotates, and the motion encoder records and outputs a signal, thereby controlling the rotation stroke of the first feeding motor and the second feeding motor.

[0027] An ultrasonic welding joint 7 is located below the first material support plate 3 and is fixed between the left side plate 1 and the right side plate 2 via a first mounting base 18. A pusher plate 8 and a pusher block 9 are located below the second material support plate 4. The pusher plate 8 has a first through groove 8a through which the pusher block 9 passes. The pusher plate 8 is connected to a first pusher cylinder 19 that drives its back-and-forth movement. The first pusher cylinder 19 is fixedly installed on the inner side of the left side plate 1 and the right side plate 2. The pusher block 9 is connected to a second pusher cylinder 20 that drives its back-and-forth movement. The second pusher cylinder 20 is fixed between the left side plate 1 and the right side plate 2 via a second mounting base 21.

[0028] The first clamping plate is fixed inside the right side plate 2. The second clamping plate is connected to a clamping cylinder 22, which drives the clamping cylinder 22 to cooperate with the first clamping plate to clamp the elastic band. The clamping cylinder 22 is fixed above the ultrasonic welding joint 7 via a third mounting base 23. The first clamping plate includes a first upper clamping plate 10a and a first lower clamping plate 10b. The second clamping plate includes a second upper clamping plate 11a and a second lower clamping plate 11b. The drive rod of the clamping cylinder 22 is connected to the second upper clamping plate 11a. The second upper clamping plate 11a is connected to the second lower clamping plate 11b via a first connecting plate 24. The first connecting plate 24 has a horizontally arranged moving groove 24a, which is located outside the ultrasonic welding joint 7.

[0029] The elastic band hangs naturally along the gap between the first support plate 3 and the second support plate 4, forming a "U"-shaped elastic band loop below the gap. The first pusher cylinder 19 drives the pusher plate 8 to move the elastic band loop to the front of the ultrasonic welding joint 7, where the front and rear ends of the elastic band loop meet. The clamping cylinder 22 drives the second clamping plate to move closer to the first clamping plate. The second upper clamping plate 11a cooperates with the first upper clamping plate 10a to clamp the front and rear ends of the upper part of the elastic band loop, and the second lower clamping plate 11b cooperates with the first lower clamping plate 10b to clamp the front and rear ends of the lower part of the elastic band loop, aligning the front and rear positions of the elastic band loop. Subsequently, the second pusher cylinder 20 drives the pusher block 9 to push the elastic band loop into contact with the ultrasonic welding joint 7, welding the elastic band loop together. The welding of the interface is completed simultaneously with the cutting, improving work efficiency.

[0030] The preferred embodiment of this utility model has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of this utility model.

Claims

1. A feeding and cutting device for a rubber band machine, comprising an ultrasonic welding joint (7), a pusher plate (8), and a pusher block (9) arranged opposite to each other, characterized in that: The ultrasonic welding joint (7) has a first clamping plate on one side and a second clamping plate on the other side. The second clamping plate is connected to a clamping cylinder (22) that drives it to cooperate with the first clamping plate to clamp the elastic band. The pusher plate (8) is connected to a first pusher cylinder (19) that drives it to move back and forth. The pusher plate (8) has a first through groove (8a) for the pusher block (9) to pass through. The pusher block (9) is connected to a second pusher cylinder (20) that drives it to move back and forth.

2. The feeding and cutting device for a rubber band machine according to claim 1, characterized in that: The first clamping plate includes a first upper clamping plate (10a) and a first lower clamping plate (10b), and the second clamping plate includes a second upper clamping plate (11a) and a second lower clamping plate (11b). The drive rod of the clamping cylinder (22) is connected to the second upper clamping plate (11a), and the second upper clamping plate (11a) is connected to the second lower clamping plate (11b) through a first connecting plate (24). The first connecting plate (24) has a horizontally arranged moving groove (24a) inside, and the moving groove (24a) is arranged outside the ultrasonic welding joint (7).

3. The feeding and cutting device for a rubber band machine according to claim 2, characterized in that: Includes a left side plate (1) and a right side plate (2) fixed on the frame. Between the left side plate (1) and the right side plate (2), there is a first mounting seat (18) for fixing the ultrasonic welding joint (7) and a second mounting seat (21) for fixing the second pusher cylinder (20). The first pusher cylinder (19) is fixedly installed on the inner side of the left side plate (1) and the right side plate (2). The clamping cylinder (22) is fixed above the ultrasonic welding joint (7) by a third mounting seat (23).

4. The feeding and cutting device for a rubber band machine according to claim 3, characterized in that: A first material support plate (3) and a second material support plate (4) are provided at an interval between the left side plate (1) and the right side plate (2); the output end of the first material support plate (3) is provided with a rotating first feeding wheel (5), and the first feeding wheel (5) is connected to a first motor (12) that drives it to rotate; the input end of the second material support plate (4) is provided with a rotating second feeding wheel (6), and the second feeding wheel (6) is connected to a second motor (13) that drives it to rotate.

5. The feeding and cutting device for a rubber band machine according to claim 4, characterized in that: The first motor (12) and the second motor (13) are fixed on the right side plate (2). The drive shaft of the first motor (12) is rotatably connected to the first feeding wheel (5), and the drive shaft of the second motor (13) is rotatably connected to the second feeding wheel (6).

6. The feeding and cutting device for a rubber band machine according to claim 5, characterized in that: A first pressing wheel (14) is rotatably provided above the first feeding wheel (5) to press the elastic band. The first pressing wheel (14) is connected to a pressing cylinder (15) that drives its opening and closing.

7. The feeding and cutting device for a rubber band machine according to claim 6, characterized in that: The pressing cylinder (15) is fixed on the right side plate (2). The first pressing wheel (14) is connected to the pressing cylinder (15) through the first crank (16). The first pressing wheel (14) is rotatably mounted on one end of the first crank (16), and the other end of the first crank (16) is rotatably mounted on the right side plate (2). The other end of the first crank (16) is connected to the drive rod of the pressing cylinder (15).

8. The feeding and cutting device for a rubber band machine according to claim 7, characterized in that: A distance-counting wheel (17) is provided on the conveying path of the elastic band belt, and the distance-counting wheel (17) is equipped with a motion encoder for measuring the conveying length of the elastic band belt.

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