An ultrasonic welder for plastic welding

Abstract

The utility model discloses a kind of ultrasonic welding machines of plastic welding, it includes: base and ultrasonic welding machine, the welding table is fixedly connected on the base upper surface, four telescopic cylinders are fixedly connected on the welding table upper surface, four telescopic cylinder interiors are slidably connected with first piston plate, four first piston plate side are fixedly connected with telescopic rod, the end of telescopic rod away from first piston plate extends to telescopic cylinder outside and is fixedly connected with clamping plate, spring is fixedly connected between first piston plate side and telescopic cylinder inner wall, air pipe is fixedly connected in the welding table, air pipe upper end is communicated with telescopic cylinder interior, compression box is fixedly connected on the welding table lower surface, four air pipe lower end are fixedly connected with the upper surface of compression box, it is convenient to automatically clamp workpiece, it is favorable to improve the efficiency that staff member fixes workpiece and reduce the dismounting difficulty of pneumatic cylinder, it is convenient for staff member to maintain pneumatic cylinder.

Description

Technical Field

[0001] This utility model relates to the technical field of washing machine plastic parts processing equipment, and in particular to an ultrasonic welding machine for plastic welding. Background Technology

[0002] When welding plastic products, ultrasonic welding machines use ultrasonic waves to act on the thermoplastic contact surfaces, generating high-frequency vibrations of tens of thousands of times per second. These high-frequency vibrations, reaching a certain amplitude, transmit ultrasonic energy to the welding area through the upper welding component. Due to the high acoustic impedance at the welding area—the interface between the two welded parts—localized high temperatures are generated. Furthermore, because plastic has poor thermal conductivity, the heat cannot dissipate quickly enough, accumulating in the welding area. This causes the contact surfaces of the two plastic parts to melt rapidly, and under pressure, they fuse together into one piece.

[0003] Existing ultrasonic welding machines require manual rotation of a lead screw to move a clamping block to hold the workpiece when welding plastic parts. However, this method has low workpiece fixation efficiency and reduces welding efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an ultrasonic welding machine for plastic welding, which solves the problem of low efficiency in fixing workpieces by workers.

[0005] To achieve the above objectives, an ultrasonic welding machine for plastic welding is provided, comprising: a base and an ultrasonic welding machine. A welding table is fixedly connected to the upper surface of the base. Four telescopic cylinders are fixedly connected to the upper surface of the welding table. A first piston plate is slidably connected inside each of the four telescopic cylinders. A telescopic rod is fixedly connected to the side of each of the four first piston plates. The end of the telescopic rod away from the first piston plate extends to the outside of the telescopic cylinder and is fixedly connected to a clamping plate. A spring is fixedly connected between the side of the first piston plate and the inner wall of the telescopic cylinder. An air pipe is fixedly connected inside the welding table. The upper end of the air pipe communicates with the inside of the telescopic cylinder. A compression box is fixedly connected to the lower surface of the welding table. The lower ends of the four air pipes are fixedly connected to the upper surface of the compression box. A second piston plate is slidably connected inside the compression box. A second piston rod is fixedly connected to the lower surface of the second piston plate. The lower end of the second piston rod extends to the outside of the compression box. A cylinder is detachably connected inside the base. The output end of the cylinder is detachably connected to the lower end of the second piston rod, which facilitates automatic clamping of the workpiece and improves the efficiency of the operator in fixing the workpiece.

[0006] The upper end of the cylinder is fixedly connected to an insert block, which is inserted into the interior of the second piston rod. A first fixing screw is inserted into the side of the second piston rod, and one end of the first fixing screw is threaded into the interior of the insert block. A mounting plate is fixedly connected to the lower surface of the cylinder. Two insert plates are slidably connected inside the mounting plate. The ends of the two insert plates away from the mounting plate are inserted into the interior of the base. The lower surface of the mounting plate is attached to a connecting plate. Two insert posts are fixedly connected to both sides of the upper surface of the connecting plate. The upper ends of the insert posts penetrate the insert plates and are inserted into the interior of the mounting plate. A second fixing screw is inserted into the interior of the connecting plate, and the upper end of the second fixing screw is threaded into the interior of the mounting plate. This design reduces the difficulty of disassembling the cylinder and facilitates maintenance by the operator.

[0007] According to the ultrasonic welding machine for plastic welding, the ultrasonic welding machine is fixedly installed on the upper surface of the base, and the workpiece can be easily welded by the ultrasonic welding machine.

[0008] According to the ultrasonic welding machine for plastic welding, support legs are fixedly connected to the four corners of the lower surface of the base, and rubber pads are fixedly connected to the lower ends of the support legs to facilitate the support device.

[0009] According to the ultrasonic welding machine for plastic welding, the longitudinal section of the telescopic rod is square, and the cross-section of the insert block is square, which is beneficial for the stable lateral movement of the telescopic rod.

[0010] According to the ultrasonic welding machine for plastic welding, the spring is sleeved on the outside of the telescopic rod.

[0011] According to the ultrasonic welding machine for plastic welding, the two insert plates are symmetrically arranged to facilitate the fixing of the mounting plate.

[0012] According to the ultrasonic welding machine for plastic welding, a controller is fixedly connected to the side of the base, and the operation of the device can be easily controlled by the controller.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] The cylinder pushes the second piston rod, which facilitates the sliding of the second piston plate inside the compression chamber, thus compressing the internal air. The compressed air from the second piston plate then pushes the first piston plate and the telescopic rod to move, which in turn pushes the clamping plate to hold the workpiece. This facilitates automatic workpiece clamping and improves the efficiency of workers in fixing workpieces.

[0015] By removing the second fixing screw, the limiting effect on the connecting plate and the insert can be easily released. By removing the connecting plate and the insert, the limiting effect of the insert on the insert plate can be easily released. By removing the first fixing screw, the connection between the insert block and the second piston rod can be easily released, reducing the difficulty of disassembling the cylinder and making it easier for staff to maintain the cylinder.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a perspective view of an ultrasonic welding machine for plastic welding according to the present invention.

[0019] Figure 2 The diagram shows the internal structure of an ultrasonic welding machine for plastic welding according to this utility model, without the internal structure of the ultrasonic welding machine.

[0020] Figure 3 This is a top sectional view of the welding table in an ultrasonic welding machine for plastic welding according to the present invention.

[0021] Figure 4 This utility model relates to an ultrasonic welding machine for plastic welding. Figure 2 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Base; 2. Ultrasonic welding machine; 3. Welding table; 4. Telescopic cylinder; 5. First piston plate; 6. Telescopic rod; 7. Clamping plate; 8. Spring; 9. Air pipe; 10. Compression box; 11. Second piston plate; 12. Second piston rod; 13. Cylinder; 14. Insert block; 15. First fixing screw; 16. Mounting plate; 17. Insert plate; 18. Connecting plate; 19. Insert post; 20. Second fixing screw; 21. Controller. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-4This utility model discloses an ultrasonic welding machine for plastic welding, comprising: a base 1 and an ultrasonic welding machine 2. A welding table 3 is fixedly connected to the upper surface of the base 1, and four telescopic cylinders 4 are fixedly connected to the upper surface of the welding table 3. The telescopic cylinders 4 facilitate the sliding of a first piston plate 5 inside and bear the power generated by the compressed air of a second piston plate 11. The first piston plate 5 is slidably connected inside each of the four telescopic cylinders 4 to ensure a seal between the side of the first piston plate 5 and the inner wall of the telescopic cylinder 4, similar to the piston inside a syringe. Telescopic rods 6 are fixedly connected to the sides of each of the four first piston plates 5. The telescopic rods 6 are used to connect clamping plates 7. The end of the telescopic rod 6 away from the first piston plate 5 extends to the outside of the telescopic cylinder 4 and is fixedly connected to the clamping plate 7. A spring 8 is fixedly connected between the side of the first piston plate 5 and the inner wall of the telescopic cylinder 4, and the elastic force of the spring 8 pushes the first piston plate 5... Piston plate 5 is reset. Gas pipe 9 is fixedly connected inside welding station 3. Gas pipe 9 is used for gas to flow inside it. The upper end of gas pipe 9 is connected to the inside of telescopic cylinder 4. Compression box 10 is fixedly connected to the lower surface of welding station 3. The lower ends of four gas pipes 9 are fixedly connected to the upper surface of compression box 10. Second piston plate 11 is slidably connected inside compression box 10. Second piston plate 11 is used to compress the air inside compression box 10, thereby pushing first piston plate 5. Second piston rod 12 is fixedly connected to the lower surface of second piston plate 11. The lower end of second piston rod 12 extends to the outside of compression box 10. Cylinder 13 is detachably connected inside base 1. An external air source is provided. A pressure sensor is set at the air inlet end of cylinder 13 to monitor the generated pressure in real time to ensure that it is within the set range. The output end of cylinder 13 is detachably connected to the lower end of second piston rod 12.

[0026] A plug block 14 is fixedly connected to the upper end of the cylinder 13. The plug block 14 is inserted into the interior of the second piston rod 12. A first fixing screw 15 is inserted into the side of the second piston rod 12 to connect the plug block 14 and the second piston rod 12. One end of the first fixing screw 15 is threaded into the interior of the plug block 14. A mounting plate 16 is fixedly connected to the lower surface of the cylinder 13. Two plug plates 17 are slidably connected inside the mounting plate 16. The plug plates 17 are used to insert into the inner wall of the through hole opened on the base 1, and the area of ​​the plug plates 17 is smaller than the cross-sectional area of ​​the through hole opened on the base 1. The ends of the two plug plates 17 away from the mounting plate 16 are inserted into the interior of the base 1. The lower surface of the mounting plate 16 is attached to the connecting plate 18. Two plug posts 19 are fixedly connected to both sides of the upper surface of the connecting plate 18. The upper ends of the plug posts 19 penetrate the plug plates 17 and are inserted into the interior of the mounting plate 16. The plug posts 19 are used to limit the position of the plug plates 17. A second fixing screw 20 is inserted into the interior of the connecting plate 18 to fix the connecting plate 18. The upper end of the second fixing screw 20 is threaded into the interior of the mounting plate 16.

[0027] Reference Figure 1The ultrasonic welding machine 2 is fixedly installed on the upper surface of the base 1. Support legs are fixedly connected to the four corners of the lower surface of the base 1. Rubber pads are fixedly connected to the lower end of the support legs. Controller 21 is fixedly connected to the side of the base 1 for controlling the operation of the device, such as a PLC controller. The longitudinal section of the telescopic rod 6 is square.

[0028] Reference Figure 2-4 The insert 14 has a square cross-section, the spring 8 is sleeved on the outside of the telescopic rod 6, and the two insert plates 17 are symmetrically arranged.

[0029] Working principle: In use, the operator first places the workpiece on the welding table 3, and then starts the cylinder 13 through the controller 21 to push the second piston rod 12 and the second piston plate 11 upward. By compressing the air inside the compression box 10, the first piston plate 5, the telescopic rod 6 and the clamping plate 7 are further moved, which facilitates automatic workpiece clamping and improves the efficiency of the operator in fixing the workpiece. After welding is completed, the cylinder 13 can be returned to its original position, and then the elastic force of the spring 8 can be used to push the first piston plate 5 to return to its original position. When the cylinder 13 needs maintenance, the operator can remove the second fixing screw 20 to pull out the connecting plate 18 and the insert 19, and then manually slide the insert plate 17 to release the limit of the insert plate 17 on the mounting plate 16. Then, the operator can remove the first fixing screw 15 to release the limit of the first fixing screw 15 on the insert block 14, which makes it convenient for the operator to disassemble and maintain the cylinder 13.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An ultrasonic welding machine for plastic welding, comprising: The base (1) and the ultrasonic welding machine (2) are characterized in that a welding table (3) is fixedly connected to the upper surface of the base (1), and four telescopic cylinders (4) are fixedly connected to the upper surface of the welding table (3). A first piston plate (5) is slidably connected inside each of the four telescopic cylinders (4). A telescopic rod (6) is fixedly connected to the side of each of the four first piston plates (5). One end of the telescopic rod (6) away from the first piston plate (5) extends to the outside of the telescopic cylinder (4) and is fixedly connected to a clamping plate (7). A spring (8) is fixedly connected between the side of the first piston plate (5) and the inner wall of the telescopic cylinder (4). The welding table (3) is fixedly connected to... The upper end of the air pipe (9) is connected to the inside of the telescopic cylinder (4). The lower surface of the welding table (3) is fixedly connected to the compression box (10). The lower ends of the four air pipes (9) are fixedly connected to the upper surface of the compression box (10). The second piston plate (11) is slidably connected inside the compression box (10). The lower surface of the second piston plate (11) is fixedly connected to the second piston rod (12). The lower end of the second piston rod (12) extends to the outside of the compression box (10). The cylinder (13) is detachably connected inside the base (1). The output end of the cylinder (13) is detachably connected to the lower end of the second piston rod (12). The upper end of the cylinder (13) is fixedly connected to the insert block (14), the insert block (14) is inserted into the second piston rod (12), the side of the second piston rod (12) is connected to the first fixing screw (15), one end of the first fixing screw (15) is threadedly connected to the inside of the insert block (14), the lower surface of the cylinder (13) is fixedly connected to the mounting plate (16), the inside of the mounting plate (16) is slidably connected to two insert plates (17), the ends of the two insert plates (17) away from the mounting plate (16) are inserted into the base (1), the lower surface of the mounting plate (16) is attached to the connecting plate (18), the upper surface of the connecting plate (18) is fixedly connected to two insert posts (19) on both sides, the upper end of the insert post (19) passes through the insert plate (17) and is inserted into the inside of the mounting plate (16), the inside of the connecting plate (18) is connected to the second fixing screw (20), the upper end of the second fixing screw (20) is threadedly connected to the inside of the mounting plate (16).

2. The ultrasonic welding machine for plastic welding according to claim 1, characterized in that, The ultrasonic welding machine (2) is fixedly installed on the upper surface of the base (1).

3. The ultrasonic welding machine for plastic welding according to claim 1, characterized in that, Support legs are fixedly connected to the four corners of the lower surface of the base (1), and rubber pads are fixedly connected to the lower end of the support legs.

4. The ultrasonic welding machine for plastic welding according to claim 1, characterized in that, The telescopic rod (6) has a square longitudinal section, and the insert (14) has a square cross section.

5. The ultrasonic welding machine for plastic welding according to claim 1, characterized in that, The spring (8) is sleeved on the outside of the telescopic rod (6).

6. The ultrasonic welding machine for plastic welding according to claim 1, characterized in that, The two inserts (17) are arranged symmetrically.

7. The ultrasonic welding machine for plastic welding according to claim 1, characterized in that, The controller (21) is fixedly connected to the side of the base (1).

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