Spot welding device for cup-shaped mask production

Abstract

The utility model discloses a spot welding device for cup type mask production, which comprises a spot welding machine main body and a telescopic rod vertically arranged on the spot welding machine main body, the lower end of the telescopic rod is horizontally provided with an assembling assembly, and the lower surface of the assembling assembly is provided with two spot welding heads in bilateral symmetry; a cover body positioning seat is arranged at the position, corresponding to the assembling assembly, of the spot welding machine body, a cover body positioning groove is formed in the center of the upper surface of the cover body positioning seat, a fixed support and a movable downward-pressing support are arranged on the periphery of the assembling assembly, and a guide column movably penetrating through the fixed support is vertically arranged on the movable downward-pressing support. The guide column is movably sleeved with a reset spring located between the fixed support and the movable pressing support, and finger receding grooves are formed in the positions, close to the front face, of the opposite faces of the movable pressing support and the cover body positioning base. According to the utility model, the two spot welding heads are respectively pressed on the two end parts of the ear belt, one ear belt can be welded at one time, the welding frequency of the ear belt is reduced by half, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of masks, in particular to a spot welding device for producing cup-shaped masks. Background Art

[0002] When producing cup-shaped masks, it is necessary to weld the formed cup-shaped mask body and ear straps together through a spot welding head to complete the final production step of the cup-shaped mask. Most companies adopt semi-automatic production. In the early stage, the cup-shaped mask body is produced and processed through an automated production line, and then the ear straps are welded through a semi-automatic spot welding machine, that is, the cup-shaped mask body and ear straps are manually held and welded through a spot welding machine. The specific process is to place the cup-shaped mask body on the mask body positioning seat on the spot welding machine table, and place one end of the ear strap at the corresponding position below the spot welding head. The telescopic rod of the spot welding device drives the spot welding head to descend to complete the welding of one end of the ear strap, and then repeat the operation on the other end of the ear strap to complete the welding of both ends of the ear strap. Usually, a cup-shaped mask has two ear straps, and each end of the ear strap needs to be welded once, so a cup-shaped mask needs to repeat the welding operation four times. In order to improve production efficiency, our company has designed and proposed a new type of spot welding device for cup-shaped mask production. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a spot welding device for the production of cup-shaped masks, which is used to improve the welding efficiency of the cup-shaped mask body and the ear straps on the basis of the existing cup-shaped mask spot welding device, thereby achieving the purpose of improving production efficiency.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A spot welding device for producing cup-shaped masks, comprising a spot welding machine body and a telescopic rod vertically arranged on the spot welding machine body, an assembly assembly being horizontally installed at the lower end of the telescopic rod, two spot welding heads being symmetrically arranged on the lower surface of the assembly assembly, a mask body positioning seat being arranged at a position corresponding to the assembly assembly on the spot welding machine body, and a mask body positioning groove being arranged at a central position on the upper surface of the mask body positioning seat;

[0006] The assembly assembly is provided with a fixed bracket and a movable downward-pressing bracket around it, the movable downward-pressing bracket is vertically provided with a guide column that movably passes through the fixed bracket, a stop block is provided at the top of the guide column, a movable sleeve on the guide column is provided with a return spring located between the fixed bracket and the movable downward-pressing bracket, and finger clearance grooves are provided at positions close to the front sides of the movable downward-pressing bracket and the cover body positioning seat relative to each other.

[0007] Preferably, the mask body positioning groove is adapted to the shape and size of the cup-shaped mask body, and the distance between the two spot welding heads is equal to the distance between the two ends of the ear straps on the cup-shaped mask.

[0008] Preferably, the fixed bracket and the movable downward-pressing bracket are both rectangular frame structures, and there are four guide columns which are located near four corners of the movable downward-pressing bracket.

[0009] Preferably, the depth of the finger clearance groove is not less than 2CM.

[0010] Preferably, the finger clearance groove is divided into a thumb clearance groove located on the lower surface of the movable downward pressing bracket and an index finger clearance groove located on the cover body positioning seat, the two thumb clearance grooves are in an "eight" shape, and the index finger clearance groove is a horizontal strip groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model places the cup-shaped mask body of the cup-shaped mask in the mask body positioning groove of the mask body positioning seat, and the staff holds the two ends of an ear strap with both hands near the end, pinches the ear strap with the thumb and index finger, and places the index finger in the index finger clearance groove of the finger clearance groove, the telescopic rod drives the assembly assembly to move downward, and the movable downward pressing bracket presses the ear strap and the cup-shaped mask body of the cup-shaped mask, and two spot welding heads are respectively pressed on the two ends of the ear strap to complete the welding with an ear strap on the cup-shaped mask, and the cup-shaped mask body is horizontally rotated 180 degrees, and then another ear strap is welded, and one ear strap can be welded at one time, so the welding of a mask body can be completed in two operations, the number of ear strap welding times is halved, the efficiency of ear strap welding is improved, the production speed of the cup-shaped mask is greatly improved, and the purpose of improving production efficiency is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the corresponding positions of the assembly assembly and the cover body positioning seat of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the corresponding position of the movable downward pressing bracket of the utility model.

[0016] In the figure: 1. spot welding machine body; 2. telescopic rod; 3. assembly assembly; 4. cover body positioning seat; 401. cover body positioning groove; 5. fixed bracket; 6. movable downward pressing bracket; 601. guide column; 602. stop block; 603. reset spring; 7. spot welding head; 8. finger clearance groove; 801. thumb clearance groove; 802. index finger clearance groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-3 As shown, the utility model provides a technical solution: a spot welding device for producing a cup-shaped mask, comprising a spot welding machine body 1 and a telescopic rod 2 vertically arranged on the spot welding machine body 1, an assembly assembly 3 is horizontally installed at the lower end of the telescopic rod 2, two spot welding heads 7 are symmetrically arranged on the lower surface of the assembly assembly 3, and the distance between the two spot welding heads 7 is equal to the distance between the two ends of the ear strap of the cup-shaped mask, a mask body positioning seat 4 is arranged at a position corresponding to the assembly assembly 3 on the spot welding machine body 1, and a mask body positioning groove 401 is arranged at the central position of the upper surface of the mask body positioning seat 4, and the mask body positioning groove 401 is adapted to the shape and size of the cup-shaped mask;

[0019] The assembly assembly 3 is provided with a fixed bracket 5 and a movable pressing bracket 6 around it. A guide column 601 that movably penetrates the fixed bracket 5 is vertically provided on the movable pressing bracket 6. A stop block 602 is provided on the top of the guide column 601. A return spring 603 that is movably sleeved on the guide column 601 and located between the fixed bracket 5 and the movable pressing bracket 6 is provided.

[0020] Both the fixed bracket 5 and the movable downward pressing bracket 6 are of rectangular frame structure. There are four guide pillars 601 and they are located near the four corners of the movable downward pressing bracket 6 to ensure the guiding effect of the movable downward pressing bracket 6. Finger clearance grooves 8 are provided at the positions near the front faces of the opposite surfaces of the movable downward pressing bracket 6 and the cover body positioning seat 4. The depth of the finger clearance grooves 8 is not less than 2CM. The finger clearance grooves 8 are divided into thumb clearance grooves 801 located on the lower surface of the movable downward pressing bracket 6 and index finger clearance grooves 802 located on the cover body positioning seat 4. The two thumb clearance grooves 801 are in an "eight" shape, and the index finger clearance grooves 802 are horizontal strip grooves.

[0021] Working principle:

[0022] The cup-shaped mask body of the cup-shaped mask is placed in the mask body positioning groove 401 of the mask body positioning seat 4. The staff holds both ends of an ear strap with both hands near the end, pinches the ear strap with the thumb and index finger, and places the index finger in the index finger clearance groove 802 of the finger clearance groove 8. The telescopic rod 2 drives the assembly assembly 3 to move downward, and the movable downward pressing bracket 6 presses the ear strap and the cup-shaped mask body of the cup-shaped mask. The two spot welding heads 7 are respectively pressed on the two ends of the ear strap to complete the welding with an ear strap on the cup-shaped mask. The cup-shaped mask body is horizontally rotated 180 degrees, and then another ear strap is welded. One ear strap can be welded at one time. The operation can be completed twice to complete the welding of a mask body. The number of ear strap welding times is halved, thereby improving the efficiency of ear strap welding.

[0023] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spot welding device for producing cup-shaped masks, comprising a spot welding machine body (1) and a telescopic rod (2) vertically arranged on the spot welding machine body (1), characterized in that: An assembly assembly (3) is horizontally mounted at the lower end of the telescopic rod (2); two spot welding heads (7) are symmetrically arranged on the lower surface of the assembly assembly (3); a cover body positioning seat (4) is arranged at a position corresponding to the assembly assembly (3) on the spot welding machine body (1); and a cover body positioning groove (401) is arranged at a central position on the upper surface of the cover body positioning seat (4); The assembly assembly (3) is provided with a fixed bracket (5) and a movable downward pressing bracket (6) around it. A guide column (601) that movably passes through the fixed bracket (5) is vertically provided on the movable downward pressing bracket (6). A stop block (602) is provided on the top of the guide column (601). A return spring (603) that is movably sleeved on the guide column (601) and located between the fixed bracket (5) and the movable downward pressing bracket (6) is provided. Finger clearance grooves (8) are provided at positions near the front of the opposite surfaces of the movable downward pressing bracket (6) and the cover body positioning seat (4).

2. A spot welding device for producing a cup-shaped mask according to claim 1, characterized in that: The mask body positioning groove (401) is adapted to the shape and size of the cup-shaped mask body, and the distance between the two spot welding heads (7) is equal to the distance between the two ends of the ear straps on the cup-shaped mask.

3. A spot welding device for producing a cup-shaped mask according to claim 1, characterized in that: The fixed support (5) and the movable downward pressing support (6) are both rectangular frame structures, and there are four guide columns (601) located near four corners of the movable downward pressing support (6).

4. A spot welding device for producing a cup-shaped mask according to claim 1, characterized in that: The depth of the finger clearance groove (8) is not less than 2 cm.

5. A spot welding device for producing a cup-shaped mask according to claim 4, characterized in that: The finger clearance groove (8) is divided into a thumb clearance groove (801) located on the lower surface of the movable downward pressing bracket (6) and an index finger clearance groove (802) located on the cover body positioning seat (4), the two thumb clearance grooves (801) are in an "eight" shape, and the index finger clearance groove (802) is a transverse strip groove.

Images