Mask ear strap nailing machine

Abstract

The utility model relates to the technical field of mask production, in particular to a mask ear strap nailing machine which comprises a base, a welding table arranged on the base, a positioning mechanism arranged on the welding table and two sets of welding jigs arranged above the welding table. The length adjusting mechanism is used for driving the two sets of welding jigs to be close to or away from each other, the lifting plate is used for installing the length adjusting mechanism, the lifting air cylinder is used for driving the lifting plate to ascend or descend, and the support is used for connecting the lifting air cylinder and the base. The control box is arranged on one side of the base; any group of welding jigs comprises two welding guns which are oppositely arranged front and back, and a width adjusting mechanism which is used for driving the two welding guns to be close to or far away from each other; the positions of the four welding guns can be adjusted, mask ear bands of masks of different specifications can be welded, and practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of mask production, in particular to a mask earband nailing machine. Background Art

[0002] In the production process of masks, generally, an earband is connected to the mask body through a nailing device. The existing nailing device is usually a spot welder. The spot welder can use the high temperature at its welding head to quickly melt and connect the connection part between the earband and the mask body. During specific operation, usually, a worker needs to place one end of the earband at the connection part with the mask body and perform welding through the welding head of the spot welder. For example, a Chinese patent with the authorized announcement number CN211807910U discloses a mask earband welding device, which includes a box body. A placing mechanism is arranged on the top of the box body. Fixed rods are fixedly connected to both sides of the top of the box body. A top plate is fixedly connected to the tops of the two fixed rods. A welding mechanism is arranged at the bottom of the top plate. An installation plate is fixedly connected to the rear side of the inner cavity of the box body. A motor is fixedly connected to the top of the installation plate. In the utility model, by placing the mask in the inner cavity of the placing groove, starting the motor, the motor finally drives the pressing block to move downward to fix the mask, and starting the air cylinder, the air cylinder simultaneously drives four welding guns to move downward for welding, thus achieving the purpose of high efficiency. This mask earband nailing machine has the advantage of high efficiency, can weld four welding points of the mask simultaneously, saves time and labor, improves the welding efficiency, and is convenient for users to use.

[0003] However, in practical applications, the above mask earband nailing machine still has the following problems: Since the positions of the mask earband welding points of masks with different specifications are different, and the positions of the four welding guns in the above solution are fixed, only the mask earbands of one specification can be welded, and the applicability is poor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a mask earband nailing machine aiming at the above deficiencies, which can adjust the positions of four welding guns to weld the mask earbands of masks with different specifications, and has better practicability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mask earloop nailing machine, comprising a base, a welding table disposed on the base, a positioning mechanism disposed on the welding table, two groups of welding fixtures disposed above the welding table, a length adjustment mechanism for driving the two groups of welding fixtures to approach or separate from each other, a lifting plate for mounting the length adjustment mechanism, a lifting cylinder for driving the lifting plate to rise or fall, a bracket for connecting the lifting cylinder and the base, and a control box disposed on one side of the base; any one of the groups of welding fixtures includes two welding guns disposed opposite to each other front and back, a width adjustment mechanism for driving the two welding guns to approach or separate from each other, and the positioning mechanism, the length adjustment mechanism, the lifting cylinder, and the width adjustment mechanism are all electrically connected to the control box.

[0007] Furthermore, a horizontal chute is provided at the bottom of the lifting plate; the length adjustment mechanism includes a length adjustment motor fixed at one end of the horizontal chute, two horizontal sliding seats slidably connected in the horizontal chute, a length adjustment lead screw rotatably connected in the horizontal chute, the length adjustment motor is used to drive the length adjustment lead screw to rotate, two sections of external threads with opposite helix directions, namely external thread one and external thread two, are provided on the length adjustment lead screw, and internal threads one and internal threads two are respectively provided on the two horizontal sliding seats opposite to the external thread one and the external thread two, and the two groups of welding fixtures are respectively fixed on the two horizontal sliding seats.

[0008] Furthermore, the width adjustment mechanism includes a longitudinal fixed seat fixed on the horizontal sliding seat, longitudinal slide rails symmetrically arranged front and back with the longitudinal fixed seat as the center, a longitudinal sliding seat slidably connected on the longitudinal slide rails, a double-headed electric cylinder fixed on the longitudinal fixed seat, the piston rod heads of the double-headed electric cylinder are respectively connected to the front and back longitudinal sliding seats, and the two welding guns are respectively installed on the front and back longitudinal sliding seats.

[0009] Further, a transverse positioning groove and a longitudinal positioning groove are provided on the welding table. Two transverse positioning blocks are slidably connected in the transverse positioning groove, and two longitudinal positioning blocks are slidably connected in the longitudinal positioning groove. The positioning mechanism includes a transverse positioning lead screw rotatably connected in the transverse positioning groove, a transverse positioning motor fixed at one end of the transverse positioning groove, a longitudinal positioning lead screw rotatably connected in the longitudinal positioning groove, and a longitudinal positioning motor fixed at one end of the longitudinal positioning groove. The longitudinal positioning lead screw is arranged below the transverse positioning lead screw. Two adjacent sections of external threads III and IV with opposite helix directions are provided on the transverse positioning lead screw. Internal threads III and IV are respectively provided on two transverse positioning blocks opposite to the external threads III and IV. Two adjacent sections of external threads V and VI with opposite helix directions are provided on the longitudinal positioning lead screw. Internal threads V and VI are respectively provided on two longitudinal positioning blocks opposite to the external threads V and VI. A left clamping plate and a right clamping plate are respectively provided on the two transverse positioning blocks, and a front clamping plate and a rear clamping plate are respectively provided on the two longitudinal positioning blocks.

[0010] Further, the control box includes a box body, a controller arranged in the box body, a display and control buttons arranged on the front surface of the box body. The positioning mechanism, the length adjusting mechanism, the lifting cylinder, the width adjusting mechanism, the display and the control buttons are all electrically connected to the controller.

[0011] The beneficial effects of the present utility model are as follows:

[0012] In practical applications, the mask to be welded is placed on the welding table, and the mask is positioned by the positioning mechanism. The ear straps are placed on the ear strap welding points of the mask. The mask model is input into the control box. The control box can adjust the positions of the four welding guns by controlling the length adjusting mechanism and the width adjusting mechanism, so that the four welding guns are aligned with the ear strap welding points of the mask. The lifting plate is driven to descend by the lifting cylinder, so that the welding guns weld the mask and the ear straps. The present utility model can adjust the positions of the four welding guns to weld the ear straps of masks with different specifications, and has better practicability. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the front view of the present utility model;

[0015] Figure 3 is Figure 2 the sectional view taken along the line A-A in

[0016] Figure 4 is the top view of the welding table in the present utility model;

[0017] Reference numerals: base 1; bracket 11; welding table 2; horizontal positioning groove 21; vertical positioning groove 22; length adjustment motor 31; horizontal sliding seat 32; length adjustment lead screw 33; lifting plate 4; horizontal sliding groove 41; lifting cylinder 5; control box 6; welding gun 7; width adjustment mechanism; longitudinal fixed seat 81; longitudinal sliding seat 82; double-headed electric cylinder 83; horizontal positioning lead screw 91; horizontal positioning motor 92; longitudinal positioning lead screw 93; longitudinal positioning motor 94; left clamping plate 95; right clamping plate 96; front clamping plate 97; rear clamping plate 98. Detailed implementation manner

[0018] As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in, a mask earband nailing machine includes a base 1, a welding table 2 provided on the base 1, a positioning mechanism provided on the welding table 2, two sets of welding fixtures provided above the welding table 2, a length adjustment mechanism for driving the two sets of welding fixtures to approach or move away from each other, a lifting plate 4 for mounting the length adjustment mechanism, a lifting cylinder 5 for driving the lifting plate 4 to rise or fall, a bracket 11 for connecting the lifting cylinder 5 and the base 1, and a control box 6 provided on one side of the base 1; any one set of the welding fixtures includes two welding guns 7 arranged front and back facing each other, a width adjustment mechanism for driving the two welding guns 7 to approach or move away from each other, and the positioning mechanism, the length adjustment mechanism, the lifting cylinder 5, and the width adjustment mechanism are all electrically connected to the control box 6.

[0019] During use, place the mask to be welded on the welding table 2, position the mask through the positioning mechanism, place the earband on the mask earband welding point, input the mask model into the control box 6, and the control box 6 can adjust the positions of the four welding guns 7 by controlling the length adjustment mechanism and the width adjustment mechanism, so that the four welding guns 7 are facing the mask earband welding points. Drive the lifting plate 4 to descend through the lifting cylinder 5, so that the welding guns 7 weld the mask and the earband; the utility model can adjust the positions of the four welding guns and weld the mask earbands of different specifications of masks, and has better practicability.

[0020] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a transverse chute 41 is provided at the bottom of the lifting plate 4; the length adjustment mechanism includes a length adjustment motor 31 fixed at one end of the transverse chute 41, two transverse sliding seats 32 slidably connected in the transverse chute 41, and a length adjustment lead screw 33 rotatably connected in the transverse chute 41. The length adjustment motor 31 is used to drive the rotation of the length adjustment lead screw 33. Two sections of external threads with opposite helix directions, namely external thread one and external thread two, are provided on the length adjustment lead screw 33. Internal thread one and internal thread two are respectively provided on the two transverse sliding seats 32 opposite to the external thread one and the external thread two. Two groups of the welding jigs are respectively fixed on the two transverse sliding seats 32. In this embodiment, during the process of the length adjustment motor 31 driving the rotation of the length adjustment lead screw 33, since the length adjustment lead screw 33 is screwed to the internal thread one through the external thread one and screwed to the internal thread two through the external thread two, the two transverse sliding seats 32 approach or move away from each other along the transverse chute 41, thereby adjusting the nailing length of the mask.

[0021] As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the width adjustment mechanism includes a longitudinal fixed seat 81 fixed on the transverse sliding seat 32, longitudinal slide rails symmetrically arranged front and back with the longitudinal fixed seat 81 as the center, a longitudinal sliding seat 82 slidably connected to the longitudinal slide rails, and a double-headed electric cylinder 83 fixed on the longitudinal fixed seat 81. The piston rod heads of the double-headed electric cylinder 83 are respectively connected to the front and rear longitudinal sliding seats 82. Two welding guns 7 are respectively installed on the front and rear longitudinal sliding seats 82. In this embodiment, by the telescopic movement of the piston rod heads of the double-headed electric cylinder 83, the longitudinal sliding seat 82 slides along the longitudinal slide rails, thereby adjusting the distance between the front and rear two welding guns 7, and thus adjusting the nailing width of the mask.

[0022] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, a transverse positioning groove 21 and a longitudinal positioning groove 22 are provided on the welding table 2. Two transverse positioning blocks are slidably connected in the transverse positioning groove 21, and two longitudinal positioning blocks are slidably connected in the longitudinal positioning groove 22. The positioning mechanism includes a transverse positioning lead screw 91 rotatably connected in the transverse positioning groove 21, a transverse positioning motor 92 fixed at one end of the transverse positioning groove 21, a longitudinal positioning lead screw 93 rotatably connected in the longitudinal positioning groove 22, and a longitudinal positioning motor 94 fixed at one end of the longitudinal positioning groove 22. The longitudinal positioning lead screw 93 is arranged below the transverse positioning lead screw 91. Two adjacent sections of external threads three and four with opposite helix directions are provided on the transverse positioning lead screw 91. Internal threads three and four are respectively provided on two transverse positioning blocks opposite to the external threads three and four. Two adjacent sections of external threads five and six with opposite helix directions are provided on the longitudinal positioning lead screw 93. Internal threads five and six are respectively provided on two longitudinal positioning blocks opposite to the external threads five and six. A left clamping plate 95 and a right clamping plate 96 are respectively provided on two transverse positioning blocks. A front clamping plate 97 and a rear clamping plate 98 are respectively provided on two longitudinal positioning blocks. In this embodiment, during the process of the transverse positioning motor 92 driving the transverse positioning lead screw 91 to rotate, since the two transverse positioning blocks are respectively screwed to the external threads three and four through the internal threads three and four, the two transverse positioning blocks approach each other along the transverse positioning groove 21, and the left and right sides of the mask to be welded are positioned by the left clamping plate 95 and the right clamping plate 96. During the process of the longitudinal positioning motor 94 driving the longitudinal positioning lead screw 93 to rotate, since the two longitudinal positioning blocks are respectively screwed to the external threads five and six through the internal threads five and six, the two longitudinal positioning blocks approach each other along the longitudinal positioning groove 22, and the front and rear sides of the mask to be welded are positioned by the front clamping plate 97 and the rear clamping plate 98.

[0023] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the control box 6 includes a box body, a controller arranged in the box body, a display and control buttons arranged on the front surface of the box body. The positioning mechanism, the length adjustment mechanism, the lifting cylinder 5, the width adjustment mechanism, the display and the control buttons are all electrically connected to the controller. In this embodiment, the positioning mechanism, the length adjustment mechanism, the lifting cylinder 5 and the width adjustment mechanism are controlled through the controller and the control buttons.

[0024] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the scope defined by the spirit of the present invention.

Claims

1. A mask ear strap nailing machine, characterized in that: The invention comprises a base (1), a welding table (2) arranged on the base (1), a positioning mechanism arranged on the welding table (2), two groups of welding jigs arranged above the welding table (2), a length adjustment mechanism used to drive the two groups of welding jigs to move closer to or farther from each other, a lifting plate (4) used to install the length adjustment mechanism, a lifting cylinder (5) used to drive the lifting plate (4) to rise or fall, a bracket (11) used to connect the lifting cylinder (5) and the base (1), and a control box (6) arranged on one side of the base (1); any group of the welding jigs comprises two welding guns (7) arranged front and back in a facing relationship, a width adjustment mechanism used to drive the two welding guns (7) to move closer to or farther from each other, and the positioning mechanism, the length adjustment mechanism, the lifting cylinder (5) and the width adjustment mechanism are all electrically connected to the control box (6).

2. A mask ear strap nailing machine according to claim 1, characterized in that: A transverse slide groove (41) is provided at the bottom of the lifting plate (4); the length adjustment mechanism comprises a length adjustment motor (31) fixed at one end of the transverse slide groove (41), two transverse slide seats (32) slidably connected to the transverse slide groove (41), and a length adjustment screw (33) rotatably connected to the transverse slide groove (41); the length adjustment motor (31) is used to drive the length adjustment screw (33) to rotate; the length adjustment screw (33) is provided with two sections of external threads 1 and 2 with opposite rotation directions; the two transverse slide seats (32) are respectively provided with internal threads 1 and 2 facing the external threads 1 and 2; and the two groups of welding jigs are respectively fixed on the two transverse slide seats (32).

3. A mask ear strap nailing machine according to claim 2, characterized in that: The width adjustment mechanism comprises a longitudinal fixing seat (81) fixed on the transverse slide (32), a longitudinal slide rail symmetrically arranged front and rear with the longitudinal fixing seat (81) as the center, a longitudinal slide (82) slidably connected to the longitudinal slide rail, a double-headed electric cylinder (83) fixed on the longitudinal fixing seat (81), the piston rod heads of the double-headed electric cylinder (83) are respectively connected to the front and rear longitudinal slides (82), and the two welding guns (7) are respectively installed on the front and rear longitudinal slides (82).

4. A mask ear strap nailing machine according to claim 1, characterized in that: The welding table (2) is provided with a transverse positioning groove (21) and a longitudinal positioning groove (22), wherein two transverse positioning blocks are slidably connected in the transverse positioning groove (21), and two longitudinal positioning blocks are slidably connected in the longitudinal positioning groove (22); the positioning mechanism comprises a transverse positioning screw (91) rotatably connected in the transverse positioning groove (21), a transverse positioning motor (92) fixed at one end of the transverse positioning groove (21), a longitudinal positioning screw (93) rotatably connected in the longitudinal positioning groove (22), and a longitudinal positioning motor (94) fixed at one end of the longitudinal positioning groove (22), wherein the longitudinal positioning screw (93) is arranged in the transverse direction. Below the positioning screw (91), two sections of external threads three and four with opposite rotation directions are adjacently arranged on the transverse positioning screw (91), and internal threads three and four are arranged on the two transverse positioning blocks respectively opposite to the external threads three and four. Two sections of external threads five and six with opposite rotation directions are adjacently arranged on the longitudinal positioning screw (93), and internal threads five and six are arranged on the two longitudinal positioning blocks respectively opposite to the external threads five and six. The two transverse positioning blocks are respectively provided with a left side clamping plate (95) and a right side clamping plate (96), and the two longitudinal positioning blocks are respectively provided with a front side clamping plate (97) and a rear side clamping plate (98).

5. A mask ear strap nailing machine according to claim 1, characterized in that: The control box (6) comprises a box body, a controller arranged in the box body, a display and control buttons arranged on the front of the box body, and the positioning mechanism, length adjustment mechanism, lifting cylinder (5), width adjustment mechanism, display and control buttons are all electrically connected to the controller.

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