Yarn breaking device of edge bonding machine and edge bonding machine with same

Abstract

The utility model relates to the field of plate processing machinery, in particular to a wire breaking device of an edge banding machine and the edge banding machine with the wire breaking device. According to the wire breaking device of the edge banding machine, the downward pressing clamping pad and the driving piece are elastically and rotationally connected, the downward pressing clamping pad which is not reset in time is collided by a forward-moving plate to overcome elastic force to rotate around the vertical axis to achieve avoidance, and the downward pressing clamping pad and the driving piece are not prone to being damaged by the plate; and the plate continues to move forwards until the plate does not make contact with the downward-pressing clamping pad, and the downward-pressing clamping pad automatically returns around the vertical axis.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing machinery, and in particular to a wire breaking device for an edge banding machine and an edge banding machine having the wire breaking device. Background Technology

[0002] An edge banding machine is a processing device used to bond edge banding strips to the edges of boards to improve their appearance. The machine has a processing channel for the board to move forward, equipped with a scraping device and a wire-cutting device. After the inner side of the edge banding strip is bonded to the board, the board moves forward along the processing channel. The scraping device then scrapes the outer side of the edge banding strip, smoothing it out. This scraping results in edge banding strips extending backward from the back of the board. The wire-cutting device then cuts these strips to prevent them from getting tangled in subsequent processing steps and affecting the board's processing. The wire-cutting device includes a pressure pad and a drive mechanism that raises and lowers the pressure pad. A support pad is located below the pressure pad. A broken wire channel, connecting the pressure pad and the support pad, forms a continuous processing path. The sheet metal moves forward along the processing path into the broken wire channel, and then continues forward until the rear edge of the sheet metal aligns with the front edge of the pressure pad. The extending edge banding wire then aligns with the front edge of the pressure pad, and the drive unit pushes the pressure pad down onto the upper surface of the support pad, breaking the edge banding wire. After the edge banding wire is broken, the sheet metal continues to move forward, and the drive unit pushes the pressure pad upward to reset. Sometimes, the pressure pad fails to reset in time and is impacted by the next moving sheet metal, causing it to shift along with the drive unit and resulting in damage. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a wire breaking device for an edge banding machine and an edge banding machine having the wire breaking device, so that the pressure pad and the drive component are not easily damaged even when they are hit by the moving plate.

[0004] To solve the above problems, the edge banding machine wire breaking device provided by this utility model includes a lower pressure clamping pad with a supporting clamping pad below it. A wire breaking channel is formed between the lower pressure clamping pad and the supporting clamping pad, allowing the board with edge banding strips extending out to move forward along the processing channel on the edge banding machine. A driving component drives the lower pressure clamping pad to move down to the upper surface of the supporting clamping pad to break the edge banding strips. After breaking the edge banding strips, the lower pressure clamping pad moves up to reset. The lower pressure clamping pad and the driving component are elastically rotatably connected. If the lower pressure clamping pad does not reset in time, it will overcome the elastic force and rotate around the vertical axis to avoid collision with the forward-moving board.

[0005] Furthermore, a torsion spring is connected between the pressure pad and the drive component to achieve the elastic rotational connection.

[0006] Furthermore, a connector is provided for connecting the torsion spring to the drive element.

[0007] Furthermore, the driving component drives the downward pressure pad to move upward and reset.

[0008] Furthermore, the pressure pad is made of rubber.

[0009] Furthermore, a mounting bracket is provided for mounting and securing the drive unit to the edge banding machine.

[0010] Furthermore, the driving component is specifically a driving cylinder.

[0011] This utility model provides an edge banding machine, which is provided with a processing channel for the board to move forward. The processing channel is provided with an edge scraping device and a wire breaking device. The edge scraping device scrapes the edge banding strip on the board moving forward along the processing channel. The edge scraping process causes the edge banding strip to form a rearwardly extending edge banding strip wire on the rear side of the edge banding strip. The wire breaking device cuts the edge banding strip wire. The wire breaking device is specifically as described above.

[0012] Furthermore, the scraping device includes a scraper located on the side of the processing channel.

[0013] Beneficial effects: The pressure pad and the drive component are connected by an elastic rotation. If the pressure pad does not reset in time, it will overcome the elastic force and rotate around the vertical axis to avoid collision with the moving plate. Therefore, the pressure pad and the drive component are not easily damaged by the plate. When the plate continues to move forward and no longer contacts the pressure pad, the pressure pad will automatically return to its original position around the vertical axis. Attached Figure Description

[0014] Figure 1 This is a simplified structural diagram of the wire-breaking device on an edge banding machine.

[0015] Figure 2 This is a simplified diagram illustrating the wire-breaking device installed on the edge banding machine, which is prepared to break the wires in the board.

[0016] Symbol explanation:

[0017] 1-Fixed bracket; 2-Drive cylinder; 3-Connector; 4-Torsion spring; 5-Pressure clamp; 6-Support clamp; 7-Sheet material; 8-Edge sealing strip; 9-Processing channel; 10-Broken wire channel. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments.

[0019] Edge banding machine wire breaking device, such as Figure 1 As shown, it includes a mounting bracket 1 for mounting onto the edge banding machine (see...). Figure 2 The fixed bracket 1 is connected to a drive cylinder 2. The lower end of the drive cylinder 2 is provided with a connecting piece 3. The connecting piece 3 is driven by a torsion spring 4 to connect to a downward pressure pad 5. (See...) Figure 2A support pad 6, wider than the lower pressure pad 5, is provided below the lower pressure pad 5. A wire-breaking channel 10 is formed between the lower pressure pad 5 and the support pad 6 for the sheet 7 to move forward. The wire-breaking channel 10 is connected to the processing channel 9 on the edge banding machine. A scraping device, including a scraper, is provided on the left side of the processing channel 9. The sheet 7 with the edge banding strip pasted on its left side moves forward along the processing channel 9, and the scraper scrapes the edge banding strip pasted on the left side of the sheet 7. The scraping process causes the edge banding strip 8 to extend backward on the rear side of the edge banding strip. That is, the edge banding strip 8 extends backward on the left side of the sheet 7. The sheet 7 continues to move forward along the processing channel 9 into the wire-breaking channel 10. The left half of the sheet 7 is placed in the wire-breaking channel 10 and the right half is placed in the processing channel 9. When the sheet 7 moves forward until its rear side is aligned with the front side of the lower pressure pad 5, the drive cylinder 2 acts as the drive component, driving the lower pressure pad 5 to press down to the upper surface of the support pad 6 and cut the edge banding strip 8. After the edge banding strip 8 is snapped, the board 7 continues to move forward away from the broken strip channel 10. Then, the drive cylinder 2 drives the lower clamping pad 5 to move upward and reset, waiting for the next board 7 that needs to have its strip snapped. The lower clamping pad 5 is made of rubber, which has a high coefficient of friction and can tightly press the edge banding strip 8, making it easier for the edge banding strip 8 to be snapped.

[0020] See Figure 2 If the lower clamping pad 5 does not reset in time, it will be impacted by the next piece of sheet material 7 that needs to have its wire broken, which is moving forward along the processing channel 9. It will then overcome the elastic force of the torsion spring 4 and rotate around the vertical axis of the torsion spring 4 to avoid collision, thus preventing damage to the entire wire breaking device of the edge banding machine. As the sheet material 7 to be broken continues to move forward until it no longer contacts the lower clamping pad 5, the lower clamping pad 5, under the action of the elastic force of the torsion spring 4, rotates in the opposite direction around the vertical axis of the torsion spring 4 to return to its original position. The drive cylinder 2 drives the returned lower clamping pad 5 to move upwards to reset, waiting for the next piece of sheet material 7 to be broken.

[0021] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A wire-breaking device for an edge banding machine, comprising a lower clamping pad (5) with a supporting clamping pad (6) below it, forming a wire-breaking channel (10) between the lower clamping pad (5) and the supporting clamping pad (6) for a plate (7) with an edge banding strip (8) extending out to move forward along the processing channel (9) on the edge banding machine; a driving member is provided to drive the lower clamping pad (5) to move down to the upper surface of the supporting clamping pad (6) to clamp and break the edge banding strip (8), and after the lower clamping pad (5) clamps and breaks the edge banding strip, it moves up to reset, characterized in that: The pressure pad (5) and the drive component are connected by an elastic rotation. If the pressure pad (5) is not reset in time, it will be hit by the forward-moving plate (7) and overcome the elastic force to rotate around the vertical axis to avoid collision.

2. The edge banding machine wire breaking device as described in claim 1, characterized in that: A torsion spring (4) is connected between the pressure pad (5) and the drive component to achieve the elastic rotational connection.

3. The edge banding machine wire breaking device as described in claim 2, characterized in that: A connector (3) is provided for connecting the torsion spring (4) to the drive member.

4. The edge banding machine wire breaking device as described in claim 1, characterized in that: The driving component drives the downward pressure pad (5) to move upward and reset.

5. The edge banding machine wire breaking device as described in claim 1, characterized in that: The pressure pad (5) is made of rubber.

6. The edge banding machine wire breaking device as described in claim 1, characterized in that: A mounting bracket (1) is provided for mounting and fixing the drive component to the edge banding machine.

7. The edge banding machine wire breaking device as described in claim 1, characterized in that: The driving component is specifically a driving cylinder (2).

8. An edge banding machine, comprising a processing channel (9) for moving a sheet (7) forward, wherein the processing channel (9) is provided with an edge scraping device and a wire breaking device, the edge scraping device scraping the edge banding strip on the sheet moving forward along the processing channel (9), the edge scraping causing the edge banding strip wire (8) to extend backward on the rear side of the edge banding strip, and the wire breaking device cutting the edge banding strip wire (8), characterized in that: The wire breaking device is specifically the wire breaking device for the edge banding machine as described in any one of claims 1 to 7.

9. The edge banding machine as described in claim 8, characterized in that: The scraping device includes a scraper located on the side of the processing channel (9).

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