An ultrasonic welding die

Abstract

The utility model discloses an ultrasonic welding mould. The ultrasonic welding mould includes the upper die and lower die of movable connection, the top surface of lower die is provided with the lower cavity that is matched with the lower shell appearance, the bottom surface of lower die is provided with the lower cavity for avoiding the bristle, the bottom surface of upper die is provided with the upper cavity that is matched with the upper shell appearance, the bottom surface of upper cavity is provided with the upper cavity that avoids the needle, be provided with the elastic pre -compression spare in the upper cavity, when the upper die is down, and the elastic pre -compression spare will be pressed tightly on the upper shell above lower shell. The utility model solves the problem of the prior art operation process is more complicated, and the production efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of welding mold technology, and in particular to an ultrasonic welding mold. Background Technology

[0002] like Figure 1 The image shows a double-sided comb, comprising an upper shell a and a lower shell b. The upper shell has comb needles, and the lower shell has bristles. Currently, the upper and lower shells are assembled using ultrasonic welding. However, because the upper shell is unstable when placed on top of the lower shell, adhesive tape needs to be applied to the joint between the upper and lower shells before welding to position the upper shell above the lower shell. In other words, the upper and lower shells are pre-assembled, then placed in a mold for welding, and the adhesive tape is removed after welding. The entire process is cumbersome and inefficient. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an ultrasonic welding mold that can simplify the production process and thus improve production efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model ultrasonic welding mold is as follows:

[0005] An ultrasonic welding mold includes an upper mold and a lower mold that are movably connected. The top surface of the lower mold has a lower cavity that matches the shape of the lower housing, and the bottom surface of the lower mold has a lower cavity for avoiding brush bristles. The bottom surface of the upper mold has an upper cavity that matches the shape of the upper housing, and the bottom surface of the upper cavity has an upper cavity for avoiding comb needles. An elastic pre-compression member is provided in the upper cavity. When the upper mold moves downward, the elastic pre-compression member presses the upper housing tightly against the lower housing.

[0006] Preferably, the elastic preload element is a plurality of springs evenly arranged.

[0007] Preferably, the bottom surface of the upper cavity is provided with a connecting plate for fixing the spring.

[0008] Preferably, the lower mold includes a lower mold fixing block and a lower mold movable block. The top surface of the lower mold fixing block has a first parting cavity, and the bottom surface of the lower mold fixing block has a first split cavity. The top surface of the lower mold movable block has a second parting cavity, and the bottom surface of the lower mold movable block has a second split cavity. When the lower mold fixing block and the lower mold movable block are spliced ​​together, the first and second parting cavities are spliced ​​together to form the lower mold cavity, and the first and second split cavities are spliced ​​together to form the lower cavity.

[0009] Preferably, it also includes a base plate, with the lower mold fixing block fixed to one side of the base plate, and a reciprocating mechanism provided on the other side of the base plate. The reciprocating mechanism drives the lower mold moving block away from or against the lower mold fixing block.

[0010] Preferably, the reciprocating mechanism is a cylinder, with the cylinder body fixedly connected to the base plate and the cylinder extension rod fixedly connected to the lower mold movable block.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. An elastic pre-compression component is installed in the upper cavity. When the upper mold moves downward, the elastic pre-compression component takes over from the manual operation to press the upper shell tightly against the lower shell. There is no need to use tape for pre-connection or remove the tape later, which simplifies the production process, improves production efficiency, saves unnecessary production materials, and reduces production costs.

[0013] 2. Using a spring as an elastic preload component, the spring has a relatively long length in its free state, which allows people enough reaction time to remove their hands when it moves down with the upper mold, so as to avoid hand injuries. At the same time, the spring can also avoid pressing the comb needles on the comb needle mounting surface, thus avoiding damage to the comb needles.

[0014] 3. The lower mold is composed of a fixed lower mold block and a movable lower mold block, which can prevent damage to the bristles when placing the double-sided comb. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a double-sided comb.

[0016] Figure 2 This is a structural schematic diagram of the ultrasonic welding mold of this utility model.

[0017] Figure 3 This is a schematic diagram of the upper mold structure.

[0018] Figure 4 This is a schematic diagram of the lower mold structure.

[0019] Figure 5 This is a structural schematic diagram of the lower mold fixing block.

[0020] Figure 6 This is a structural schematic diagram of the lower mold movable block.

[0021] Among them, a is the upper shell, b is the lower shell, 1 is the upper mold, 11 is the upper cavity, 12 is the upper cavity, 2 is the lower mold, 21 is the lower mold fixing block, 211 is the first parting cavity, 212 is the first parting cavity, 22 is the lower mold movable block, 221 is the second parting cavity, 222 is the second parting cavity, 23 is the lower cavity, 24 is the lower cavity, 3 is the base plate, 4 is the reciprocating mechanism, 5 is the connecting plate, and 6 is the elastic pre-compression component. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0023] like Figure 2-6 As shown, an ultrasonic welding mold includes an upper mold 1 and a lower mold 2 movably connected. The lower mold 2 includes a lower mold fixing block 21 and a lower mold movable block 22. The top surface of the lower mold fixing block 21 has a first parting cavity 211, and the bottom surface of the lower mold fixing block 21 has a first split cavity 212. The top surface of the lower mold movable block 22 has a second parting cavity 221, and the bottom surface of the lower mold movable block 22 has a second split cavity 222. The lower mold fixing block 21 is fixed to a base plate 3 by bolts. The lower mold fixing block 21 is located on the front side of the top surface of the base plate 3. A reciprocating mechanism 4 is installed on the rear side of the top surface of the base plate 3. The reciprocating mechanism 4 is a cylinder. The cylinder body is fixed to the base plate, and the cylinder extension rod is fixed to the lower mold movable block 22. The cylinder drives the lower mold movable block 22. When the moving block 22 is in contact with the lower mold fixing block 21, the first and second parting cavities are spliced ​​together to form a complete lower cavity 23 for supporting the lower shell, and the first and second parting cavities are spliced ​​together to form a complete lower cavity 24 for avoiding the brush bristles. The bottom surface of the upper mold 1 is provided with an upper cavity 11 that matches the shape of the upper shell, and the bottom surface of the upper cavity 11 is provided with an upper cavity 12 for avoiding the comb needles. A connecting plate 5 is installed on the bottom surface of the upper cavity, and an elastic preload 6 is installed on the bottom surface of the connecting plate 5. The elastic preload 6 consists of three evenly arranged springs. The top of the springs is welded to the connecting plate. The connecting plate serves as an intermediate part to facilitate the welding of the springs and to facilitate the adjustment of the springs and comb needles to be staggered during assembly (the connecting plate can be glued to the bottom surface of the upper cavity).

[0024] The specific working process and principle of this utility model are as follows: The lower housing with bristles is placed on the lower mold fixing block 21. At this time, the first cavity 212 is open, which can prevent damage to the bristles from hard compression. The cylinder is activated, driving the lower mold movable block 22 to move closer to the lower mold fixing block 21. After the lower mold movable block 22 and the lower mold fixing block 21 are in contact, they jointly support the lower housing. The upper housing with comb teeth is then fastened onto the lower housing. The welding ribs of the upper housing are inserted into the corresponding slots of the lower housing, and the upper housing is held down by hand. The ultrasonic welding machine is started, and the upper mold moves downward. When the spring contacts the comb needle mounting surface, the hand is removed, and the spring takes over from the hand to press the upper housing firmly on top of the lower housing until the mold is closed and welding is completed. This utility model, by setting a spring in the upper cavity of the upper mold to replace the hand in pressing the upper housing, eliminates the need for pre-connection with adhesive tape and the need for subsequent removal of the tape, thereby simplifying the production process, improving production efficiency, saving unnecessary production auxiliary materials, and reducing production costs.

Claims

1. An ultrasonic welding mold, comprising an upper mold and a lower mold movably connected, wherein the top surface of the lower mold has a lower cavity matching the shape of a lower housing, and the bottom surface of the lower mold has a lower cavity for avoiding brush bristles; the bottom surface of the upper mold has an upper cavity matching the shape of an upper housing, and the bottom surface of the upper cavity has an upper cavity for avoiding comb needles, characterized in that: An elastic pre-compression component is provided in the upper cavity. When the upper mold moves downward, the elastic pre-compression component presses the upper shell tightly against the lower shell.

2. The ultrasonic welding mold according to claim 1, characterized in that: The elastic preload component consists of multiple springs arranged evenly.

3. The ultrasonic welding mold according to claim 2, characterized in that: The bottom surface of the upper cavity is provided with a connecting plate for fixing the spring.

4. The ultrasonic welding mold according to claim 1, characterized in that: The lower mold includes a lower mold fixing block and a lower mold movable block. The top surface of the lower mold fixing block has a first parting cavity, and the bottom surface of the lower mold fixing block has a first split cavity. The top surface of the lower mold movable block has a second parting cavity, and the bottom surface of the lower mold movable block has a second split cavity. When the lower mold fixing block and the lower mold movable block are spliced ​​together, the first and second parting cavities are spliced ​​together to form the lower mold cavity, and the first and second split cavities are spliced ​​together to form the lower cavity.

5. The ultrasonic welding mold according to claim 4, characterized in that: It also includes a base plate, with the lower mold fixing block fixed to one side of the base plate, and a reciprocating mechanism provided on the other side of the base plate. The reciprocating mechanism drives the lower mold moving block away from or against the lower mold fixing block.

6. The ultrasonic welding mold according to claim 5, characterized in that: The reciprocating mechanism is a cylinder, with the cylinder body fixedly connected to the base plate and the cylinder extension rod fixedly connected to the lower mold movable block.

Images