Hairbrush replacing mechanism of screen wiping machine

Abstract

The utility model relates to a brush replacing mechanism of a screen wiping machine. The brush replacing mechanism comprises a supporting plate, the first clamping jaw assembly and the second clamping jaw assembly are arranged on the two sides of the supporting plate respectively, the first clamping jaw assembly is used for clamping dirty brushes, and the second clamping jaw assembly is used for clamping new brushes; the rotating air cylinder is connected with the supporting plate and used for controlling the supporting plate to rotate so as to achieve position interchange of the first clamping jaw assembly and the second clamping jaw assembly; the brush feeding mechanism is arranged below the second clamping jaw assembly and used for conveying new brushes to the second clamping jaw assembly. According to the utility model, the brush can be automatically replaced without manual operation, the replacement frequency of the brush can be set, the replacement time is timely and reliable, the brush can be synchronously replaced during equipment production without shutdown, the production efficiency is improved, the maintenance space does not need to be reserved in the internal space of the equipment, the design is more compact, and the plant utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stencil cleaning, in particular to a brush replacement mechanism of a stencil wiping machine. Background Art

[0002] When a stencil wiping machine wipes a stencil, the front brush will sweep away the dirt on the stencil. Therefore, after being used for a period of time, impurities and dirt will remain in the brush gap, and the brush needs to be replaced. The existing method is to replace the brush manually, which requires fixed manpower to replace the brush. This may lead to product defects due to untimely replacement, and the equipment downtime during brush replacement will affect the production efficiency. Moreover, when arranging the equipment, an artificial maintenance space needs to be designed. Summary of the Utility Model

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the problem of inconvenient brush replacement in the prior art, and provide a brush replacement mechanism of a stencil wiping machine, which realizes automatic brush replacement without manual operation. The replacement frequency of the brush can be set, and the replacement time is timely and reliable. The brush can be replaced synchronously during equipment production without stopping the machine, thus improving the production efficiency.

[0004] To solve the above technical problem, the utility model provides a brush replacement mechanism of a stencil wiping machine, including:

[0005] A support plate;

[0006] A first jaw assembly and a second jaw assembly, which are respectively arranged on both sides of the support plate. The first jaw assembly is used to clamp the dirty brush, and the second jaw assembly is used to clamp the new brush;

[0007] A rotary cylinder, which is connected to the support plate and used to control the rotation of the support plate to realize the position interchange of the first jaw assembly and the second jaw assembly;

[0008] A brush loading mechanism, which is arranged below the second jaw assembly and used to convey new brushes to the second jaw assembly.

[0009] The first jaw assembly and the second jaw assembly have the same structure, and both include a telescopic cylinder, an opening jaw cylinder and an elastic jaw head. The telescopic cylinder is installed on the support plate, the opening jaw cylinder is connected to the telescopic end of the telescopic cylinder, and the elastic jaw head includes two parts, which are respectively connected to the driving ends of the opening jaw cylinder.

[0010] In an embodiment of the utility model, the elastic jaw head includes a jaw fixing plate, a jaw head, a spring and a guide rod. One end of the guide rod is fixed on the jaw head, and the other end is inserted through the jaw fixing plate. A spring is arranged between the jaw fixing plate and the jaw head.

[0011] In an embodiment of the present utility model, the brush feeding mechanism includes a displacement adjustment mechanism, a brush guide plate, a brush magazine, and a blanking mechanism. The brush guide plate is arranged on the displacement adjustment mechanism. The brush magazine is fixedly arranged above the brush guide plate. New brushes are stacked inside the brush magazine. The brush magazine includes a housing. A blanking port and a discharge port are arranged at the bottom of the housing. The blanking mechanism ejects new brushes from the discharge port of the brush magazine through the blanking port.

[0012] In an embodiment of the present utility model, a guide groove is arranged on the brush guide plate. The brush magazine is arranged above the guide groove. After the brush is ejected by the blanking mechanism, it slides along the guide groove.

[0013] In an embodiment of the present utility model, the displacement adjustment mechanism includes a moving adjustment plate, a first linear guide rail, and a translation cylinder. The first linear guide rail is arranged at the bottom of the moving adjustment plate. And the moving adjustment plate can slide along the first linear guide rail. The telescopic rod of the translation cylinder is connected with the moving adjustment plate.

[0014] In an embodiment of the present utility model, the blanking mechanism includes an ejection cylinder and an ejection block. The telescopic end of the ejection cylinder is connected with the ejection block through a connecting piece.

[0015] In an embodiment of the present utility model, the ejection block includes an ejection rod and a limiting block. The ejection rod and the limiting block are integrally in a T shape.

[0016] In an embodiment of the present utility model, a second linear guide rail is arranged between the moving adjustment plate and the ejection rod. The ejection rod can slide along the second linear guide rail.

[0017] In an embodiment of the present utility model, a brush collection box is further included, which is used for collecting the dirty brushes replaced.

[0018] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0019] For the brush replacement mechanism of a stencil wiping machine described in the present utility model, automatic brush replacement is realized without manual operation. The replacement frequency of the brush can be set. The replacement time is timely and reliable. The brush can be replaced synchronously during the equipment production without stopping the machine, improving the production efficiency. Moreover, there is no need to reserve a maintenance space inside the equipment, and it can be designed more compactly, improving the utilization rate of the factory building. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in combination with the drawings, wherein

[0021] Figure 1 is a schematic structural view of a brush replacement mechanism of a stencil wiping machine according to a preferred embodiment of the present utility model;

[0022] Figure 2 is Figure 1 a schematic structural view of a first jaw assembly of the brush replacement mechanism of the stencil wiping machine shown;

[0023] Figure 3 is a schematic structural view of a brush guide plate, a new brush, a brush magazine, and a pusher rod of the present utility model;

[0024] Explanation of reference numerals in the specification drawings: 1, support plate; 2, first jaw assembly; 21, telescopic cylinder; 22, opening jaw cylinder; 23, elastic jaw head; 231, jaw fixing plate; 232, jaw head; 233, spring; 234, guide rod; 3, second jaw assembly; 4, rotary cylinder; 5, brush loading mechanism; 51, displacement adjustment mechanism; 511, moving adjustment plate; 512, first linear guide rail; 513, translation cylinder; 52, brush guide plate; 53, brush magazine; 54, pushing mechanism; 541, ejecting cylinder; 542, ejecting block; 543, connecting member; 5421, pusher rod; 5422, limit block; 55, second linear guide rail; 521, guide groove; 6, brush collection box; 100, new brush; 101, dirty brush; 102, stencil wiping machine brush base. Detailed implementation manners

[0025] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the illustrated embodiments are not intended to limit the present utility model.

[0026] Referring to Figures 1 - 3 as shown, a brush replacement mechanism of a stencil wiping machine according to the present utility model includes: a support plate 1; a first jaw assembly 2 and a second jaw assembly 3, which are respectively arranged on both sides of the support plate 1; the first jaw assembly 2 is used for clamping a dirty brush 101 to be replaced, and the second jaw assembly 3 is used for clamping a new brush 100; a rotary cylinder 4, connected to the support plate 1 for controlling the rotation of the support plate 1 to realize the position exchange of the first jaw assembly 2 and the second jaw assembly 3; a brush loading mechanism 5, arranged below the second jaw assembly 3 for feeding a brush to the second jaw assembly 3.

[0027] In this embodiment, the structures of the first jaw assembly 2 and the second jaw assembly 3 are the same, and both include a telescopic cylinder 21, an opening jaw cylinder 22 and an elastic jaw head 23. The telescopic cylinder 21 is installed on the support plate 1. The opening jaw cylinder 22 is connected to the telescopic end of the telescopic cylinder 21. The elastic jaw head 23 includes two parts, which are respectively connected to the driving ends of the opening jaw cylinder 22.

[0028] Further, the elastic jaw head 23 includes a jaw fixing plate 231, a jaw head 232, a spring 233 and a guide rod 234. One end of the guide rod 234 is fixed on the jaw head 232, and the other end is inserted through the jaw fixing plate 231. There is a spring 233 between the jaw fixing plate 231 and the jaw head 232. The jaw fixing plate 231 can slide along the guide rod 234, and the spring 233 is used to adjust the clamping force between the jaw fixing plate 231 and the jaw head 232, so that the clamping material can be conveniently replaced at any time. For example, the brush can be replaced with a sponge.

[0029] In this embodiment, the brush feeding mechanism 5 includes a displacement adjustment mechanism 51, a brush guide plate 52, a brush spring clip 53 and a pushing mechanism 54. The brush guide plate 52 is arranged on the displacement adjustment mechanism 51. The brush spring clip 53 is fixedly arranged above the brush guide plate 52. 100 new brushes are stacked inside the brush spring clip 53. The brush spring clip 53 includes a housing, and a pushing port and a discharging port are arranged at the bottom of the housing. The pushing mechanism 54 pushes the new brush 100 out of the discharging port of the brush spring clip 53 through the pushing port.

[0030] Further, a guide groove 521 is arranged on the brush guide plate 52. The brush spring clip 53 is arranged above the guide groove 521. After the brush is pushed out by the pushing mechanism 54, it slides along the guide groove 521.

[0031] Further, the displacement adjustment mechanism 51 includes a moving adjustment plate 511, a first linear guide rail 512 and a translation cylinder 513. The first linear guide rail 512 is arranged at the bottom of the moving adjustment plate 511, and the moving adjustment plate 511 can slide along the first linear guide rail 512. The telescopic rod of the translation cylinder 513 is connected to the moving adjustment plate 511.

[0032] Further, the pushing mechanism 54 includes a pushing cylinder 541 and a pushing block 542. The telescopic end of the pushing cylinder 541 is connected to the pushing block 542 through a connecting piece 543.

[0033] In this embodiment, the pushing block 542 includes a pushing rod 5421 and a limiting block 5422. The pushing rod 5421 and the limiting block 5422 are integrally T-shaped.

[0034] Further, a second linear guide 55 is provided between the moving adjustment plate 511 and the ejector rod 5421, and the ejector rod 5421 can slide along the second linear guide 55.

[0035] In addition, a brush collection box 6 is further included for collecting the replaced dirty brushes.

[0036] Based on the brush replacement mechanism of the stencil wiping machine in this embodiment, the replacement steps of the dirty brush 101 are as follows:

[0037] (1) The stencil wiping machine moves the stencil wiping machine brush base 102 to a specified position.

[0038] (2) The telescopic cylinder 21 of the first jaw assembly 2 extends, so that the two jaw heads 232 are flush with the bottom of the dirty brush 101; the opening jaw cylinder 22 retracts, the two jaw heads 232 clamp the dirty brush 101, and then the telescopic cylinder 21 retracts to clamp the dirty brush 101.

[0039] (3) The translation cylinder 513 of the displacement adjustment mechanism 51 retracts, moving the brush magazine 53 away from the wiping head to avoid interference between the brush magazine 53 and the telescopic cylinder 21 of the first jaw assembly 2 or the second jaw assembly 3 when the rotary cylinder 4 rotates.

[0040] (4) The ejector cylinder 541 of the ejector mechanism 54 retracts, driving the ejector block 542 to eject the new brush 100 at the lowermost side of the brush magazine 53 to a specified position, and the ejector cylinder 541 extends to move the ejector block 542 back to its original position. The new brush 100 in the brush magazine 53 falls due to its own weight, facilitating the next ejection.

[0041] (5) The translation cylinder 513 extends, moving the new brush 100 below the second jaw assembly 3. The telescopic cylinder 21 of the second jaw assembly 3 extends, the opening jaw cylinder 22 retracts to clamp the new brush 100, then the telescopic cylinder 21 retracts to clamp the new brush 100, and finally the translation cylinder 513 retracts.

[0042] (6) The rotary cylinder 4 drives the support plate 1 to rotate 180°, and the first jaw assembly 2 and the second jaw assembly 3 exchange positions.

[0043] (7) When the first jaw assembly 2 passes above the dirty brush collection box 6, the opening jaw cylinder 22 extends to throw the dirty brush 101 into the dirty brush collection box 6.

[0044] After the rotary cylinder 4 drives the first jaw assembly 2 and the second jaw assembly 3 to interchange positions in place, the telescopic cylinder 21 of the second jaw assembly 3 extends, so that the new brush 101 contacts the brush base 1 of the screen wiping machine. The opening clamp cylinder 22 extends, places the new brush 101 on the brush base 1 of the screen wiping machine, and the telescopic cylinder 21 retracts.

[0045] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present utility model.

Claims

1. A brush replacement mechanism for a stencil wiping machine, characterized in that: Comprising: Support plate; A first jaw assembly and a second jaw assembly, respectively arranged on both sides of the support plate. The first jaw assembly is used to clamp a dirty brush, and the second jaw assembly is used to clamp a new brush; A rotary cylinder, connected to the support plate and used to control the rotation of the support plate to realize the position exchange of the first jaw assembly and the second jaw assembly; A brush loading mechanism, arranged below the second jaw assembly and used to convey new brushes to the second jaw assembly.

2. The brush replacement mechanism of a screen wiping machine according to claim 1, characterized in that: The structures of the first jaw assembly and the second jaw assembly are the same, and both include a telescopic cylinder, an opening jaw cylinder and an elastic jaw head. The telescopic cylinder is installed on the support plate, the opening jaw cylinder is connected to the telescopic end of the telescopic cylinder, and the elastic jaw head includes two, respectively connected to the driving ends of the opening jaw cylinder.

3. The brush replacement mechanism of a screen wiping machine according to claim 2, characterized in that: The elastic jaw head includes a jaw fixing plate, a jaw head, a spring and a guide rod. One end of the guide rod is fixed on the jaw head, and the other end is inserted through the jaw fixing plate. There is a spring between the jaw fixing plate and the jaw head.

4. The brush replacement mechanism of a stencil wiping machine according to claim 2, characterized in that: The brush loading mechanism includes a displacement adjustment mechanism, a brush guide plate, a brush magazine, several brushes and a blanking mechanism. The brush guide plate is arranged on the displacement adjustment mechanism, the brush magazine is fixedly arranged above the brush guide plate, new brushes are stacked inside the brush magazine, the brush magazine includes a housing, and the bottom of the housing is provided with a blanking port and a discharging port. The blanking mechanism ejects new brushes from the discharging port of the brush magazine through the blanking port.

5. The brush replacement mechanism of a screen wiping machine according to claim 4, characterized in that: The brush guide plate is provided with a guide groove, the brush magazine is arranged above the guide groove, and the brush slides along the guide groove after being ejected by the blanking mechanism.

6. The brush replacement mechanism of a screen wiping machine according to claim 4, characterized in that: The displacement adjustment mechanism includes a moving adjustment plate, a first linear guide rail and a translation cylinder. The first linear guide rail is arranged at the bottom of the moving adjustment plate, and the moving adjustment plate can slide along the first linear guide rail. The telescopic rod of the translation cylinder is connected to the moving adjustment plate.

7. The brush replacement mechanism of a screen wiping machine according to claim 6, characterized in that: The blanking mechanism includes an ejecting cylinder and an ejecting block. The telescopic end of the ejecting cylinder is connected to the ejecting block through a connecting piece.

8. The brush replacement mechanism of a screen wiping machine according to claim 7, characterized in that: The ejecting block includes an ejecting rod and a limiting block, and the ejecting rod and the limiting block are integrally in a T shape.

9. The brush replacement mechanism of a stencil wiping machine according to claim 8, characterized in that: A second linear guide rail is arranged between the moving adjustment plate and the ejecting rod, and the ejecting rod can slide along the second linear guide rail.

10. The brush replacement mechanism of a stencil wiping machine according to claim 1, characterized in that: It also includes a brush collection box for collecting the replaced dirty brushes.

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