Wedge strip painting device

By designing a pneumatic paint supply and guide plate structure for the paint supply and brushing components, the problems of low efficiency and uneven path in manual painting were solved, achieving a fast and high-quality edge painting effect.

CN223787211UActive Publication Date: 2026-01-13JIHUA 3514 LEATHER & FOOTWARE
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Patent Information

Application Number
CN202423277285.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-13
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

In existing technologies, manual painting is inefficient, inconvenient to apply paint, and the painting path is uneven, which can easily lead to paint being applied to areas other than the edging strip.

Method used

Design a welt painting device, including a paint supply component and a painting component, which utilizes air pressure paint supply and a guide plate structure to ensure uniform paint supply and a stable painting path for the welt.

Benefits of technology

It enables fast and high-quality edge painting, avoiding frequent paint application and overlapping paths, and ensuring the consistency and accuracy of the painting effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223787211U_ABST
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Abstract

The utility model discloses a welt painting device which comprises a paint supply assembly and a painting assembly fixedly arranged at the bottom of the paint supply assembly. The paint supply assembly comprises a paint storage tank, a paint outlet needle head and an air inlet pipe; wherein the paint outlet needle head and the air inlet pipe are fixedly arranged at the two ends of the paint storage tank respectively and communicate with the paint storage tank, and the paint outlet end of the paint outlet needle head communicates with the paint brushing assembly; the paint brushing assembly comprises a first guide plate, a second guide plate and a brush. Wherein the first guide plate is fixedly arranged at the bottom of the paint storage tank, one end of the top face of the second guide plate is fixedly connected with the first guide plate, the other end of the top face of the second guide plate tilts to fixedly clamp the brush between the first guide plate and the second guide plate, and the brush is as high as the welt. And the distance between the tilting end of the second guide plate and the first guide plate is also the same as the height of the welt. The leather shoe welt painting device is suitable for being used when leather shoes are manufactured, and is used for rapidly painting leather shoe welts with high quality.
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Description

Technical Field

[0001] This utility model belongs to the field of shoemaking technology and relates to a painting device, specifically a device that can quickly and effectively paint the welt during the shoemaking process. Background Technology

[0002] When manufacturing leather shoes using the Goodyear welt construction, a welt is typically used to connect the upper to the sole to ensure that the shoes are not prone to coming apart or deforming during long-term use.

[0003] The welt is usually made of rubber or other elastic materials, most of which are yellowish, while leather shoes are mostly black. This results in a color difference between the welt and the shoe body. To eliminate this color difference and enhance the appearance of the leather shoes, the welt is currently often painted manually. Specifically, workers use a paintbrush to apply paint of the same color as the leather shoe to the welt until all exposed sections are painted the same color.

[0004] However, this method has the following two problems: 1. The paintbrush can only pick up a small amount of paint, and the paint it picks up is often used up quickly during the painting process, requiring repeated dipping, which is inefficient. 2. Manual painting cannot guarantee a consistent painting path. During the painting process, overlapping paths and deviations are prone to occur, resulting in uneven coloring and paint being applied outside the trim. Utility Model Content

[0005] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a fencing painting device to achieve the goal of quickly and effectively painting fencing.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A welt painting device includes a paint supply assembly and a painting assembly fixed to the bottom of the paint supply assembly.

[0008] The paint supply assembly includes a paint tank, a paint dispensing needle, and an air inlet pipe; wherein the paint dispensing needle and the air inlet pipe are respectively fixed at both ends of the paint tank and connected to the paint tank, and the paint dispensing end of the paint dispensing needle is connected to the painting assembly for supplying paint to the painting assembly.

[0009] The painting assembly includes a first guide plate, a second guide plate, and a brush; wherein the first guide plate is fixedly disposed at the bottom of the paint tank, one end of the top surface of the second guide plate is fixedly connected to the first guide plate, and the other end is raised to fix the brush between the first guide plate and the second guide plate, the height of the brush is the same as the height of the welt, and there is a gap between the raised end of the second guide plate and the first guide plate that allows the welt to be just placed between the ends of the first guide plate and the second guide plate near the brush end.

[0010] As a limitation of this utility model, the paint storage tank includes a shell, a baffle, a block and a control valve, wherein the baffle and the block are both located inside the shell, the baffle is fixedly connected to the inner wall of the shell, and the block is slidably installed between the baffle and the air inlet pipe. The baffle and the block divide the interior of the shell into three non-connected parts.

[0011] The baffle has a paint outlet hole, and the paint outlet needle is connected to the paint outlet hole through a pipeline. The control valve is installed on the pipeline between the paint outlet needle and the paint outlet hole.

[0012] As a further limitation of this utility model, the paint storage tank also includes a paint repair through hole opened on the shell and a sealing cap threaded into the paint repair through hole for sealing the paint repair through hole, wherein the paint repair through hole is located between the baffle and the stop block.

[0013] As a further limitation of this utility model, there is a length difference between the ends of the first guide plate and the second guide plate near the brush side, and the difference is the same as the height difference between the upper and the side of the sole.

[0014] As a further limitation of this utility model, the length difference between the ends of the first guide plate and the second guide plate near the brush side is 4mm.

[0015] As a further limitation of this utility model, the control valve is a push-button type straight-through valve.

[0016] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0017] (1) This utility model designs a device that can quickly and with high quality paint the edging. Specifically, this utility model is equipped with a paint supply component. Through the air inlet pipe connected to the paint storage tank in the paint supply component, an external air pump or other device can be connected to provide air pressure to the inside of the paint storage tank. The air pressure is used to force the paint in the paint storage tank out and supply it to the paint supply component. When the paint in the paint supply component is insufficient, the paint can be supplied by opening the control valve, which avoids the need to repeatedly dip the paint and improves the paint supply efficiency.

[0018] In addition, in the painting assembly of this utility model, the height of the brush is the same as the height of the welt, which can complete the painting of the welt in one go, avoiding the overlap of the painting paths of multiple painting. At the same time, the first guide plate and the second guide plate can hold the welt in the end close to the brush, so that the movement path of the painting assembly can be restricted by the welt, avoiding the situation where the painting assembly deviates and paint is applied to other parts of the leather shoe.

[0019] (2) The paint supply assembly of this utility model is equipped with a control valve. By controlling the opening and closing of the control valve, it is possible to control whether the paint in the paint storage tank can flow into the paint brush assembly. This achieves the function of replenishing paint at any time without causing excessive paint to flow into the paint brush assembly.

[0020] (3) The paint storage tank of this utility model is provided with a baffle and a block. The baffle and the block can restrict the paint in the space between them and prevent the paint from flowing back into the air inlet pipe.

[0021] (4) In this utility model, there is a length difference between the ends of the first guide plate and the second guide plate near the brush side. The difference is the same as the height difference between the upper and the lower side of the shoe, so that the painting component will not sway left and right during the movement, thus ensuring the painting effect. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the paint supply component in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the painting assembly in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the shell in an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram showing the positional relationship between the upper, welt, and sole in an embodiment of this utility model;

[0028] In the picture: 1. Paint supply assembly; 2. Painting assembly; 3. Upper; 4. Welt; 5. Sole;

[0029] 11. Paint storage tank; 12. Paint dispensing needle; 13. Air inlet pipe;

[0030] 21. First guide plate; 22. Second guide plate; 23. Brush; 24. Connecting hole;

[0031] 111. Housing; 112. Control valve; 113. Sealing cap; 114. Touch-up paint hole; 115. Baffle; 116. Stop block; 117. Paint outlet. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0033] This embodiment discloses a painting device for a welt 4, including a paint supply component 1 and a painting component 2.

[0034] The paint supply assembly 1 includes a paint storage tank 11, a paint dispensing needle 12, and an air inlet pipe 13. The paint dispensing needle 12 and the air inlet pipe 13 are respectively fixed at both ends of the paint storage tank 11 and connected to the paint storage tank 11.

[0035] The paint storage tank 11 includes a shell 111, a baffle 115, a stop block 116, a control valve 112, a paint touch-up hole 114, and a sealing cap 113;

[0036] Both baffle 115 and baffle 116 are located inside housing 111. Baffle 115 is fixedly connected to the inner wall of housing 111, and baffle 116 is slidably installed between baffle 115 and air inlet pipe 13. The shapes of baffle 115 and baffle 116 are adapted to the shape of the inner cavity of housing 111 to divide the interior of housing 111 into three non-communicating parts. Here, the part between baffle 115 and baffle 116 is defined as the paint storage part, and the paint is stored in the paint storage part.

[0037] A paint outlet hole 117 is provided on the baffle 115. The paint outlet needle 12 is connected to the paint outlet hole 117 through a connecting pipe. The control valve 112 is installed on the connecting pipe between the paint outlet needle 12 and the paint outlet hole 117. In this embodiment, the control valve 112 is an existing push-type straight-through valve. The opening and closing of the control valve 112 can be controlled by pressing the pressing part of the control valve 112. In actual use, the air inlet pipe 13 needs to be connected to an external air supply device. The gas enters the paint storage tank 11 and pushes the baffle 116 towards the baffle 115, squeezing the paint in the paint storage section. When paint needs to be supplied, simply open the control valve 112. The paint squeezed by the baffle 116 will flow out from the paint outlet hole 117 and be transported to the paint outlet needle 12 through the connecting pipe. Then, it will flow out through the paint outlet end of the paint outlet needle 12, completing the paint supply.

[0038] A paint touch-up hole 114 is provided on the housing 111, and its position corresponds to the paint storage section. Matching threads are provided on the contact surfaces of the paint touch-up hole 114 and the sealing cap 113, and the sealing cap 113 is threadedly installed in the paint touch-up hole 114. When touch-up painting is required, first unscrew the sealing cap 113, and then stand the paint storage tank 11 upright so that the stop block 116 slides down to the end near the air intake pipe 13. Paint can then be added to the paint storage section through the paint touch-up hole 114. After adding paint, tighten the sealing cap 113 again.

[0039] The painting assembly 2 includes a first guide plate 21, a second guide plate 22, and a brush 23. The first guide plate 21 is fixed to the bottom of the paint tank 11. One end of the top surface of the second guide plate 22 is fixedly connected to the bottom surface of the first guide plate 21, and the other end of the second guide plate 22 is raised and separated from the first guide plate 21, forming a tweezer-like structure. The brush 23 is held between the raised end of the second guide plate 22 and the first guide plate 21, and both ends of the brush 23 are respectively connected to… The first guide plate 21 and the second guide plate 22 are fixedly connected. Here, the end with the brush 23 is defined as the brushing end of the painting assembly 2. The height of the brush 23 is the same as the height of the webbing 4. The vertical distance between the raised end of the second guide plate 22 and the first guide plate 21 is also the same as the height of the webbing 4. At the brushing end of the painting assembly 2, the distance from the end of the first guide plate 21 to the bristles of the brush 23 is longer than the distance from the end of the second guide plate 22 to the bristles of the brush 23. In this embodiment, the difference between the two distances is 4mm.

[0040] In actual use, the rim 4 is placed in the brushing end of the brushing assembly 2 so that the brush 23 contacts the rim 4. The brushing assembly 2 can then be moved to brush. At this time, since the first guide plate 21 and the second guide plate 22 are placed at both ends of the rim 4, the rim 4 can provide support to prevent it from shifting up and down, thus making the rim 4 a track to guide the movement of the brushing assembly 2.

[0041] Meanwhile, the end of the first guide plate 21 near the brush 23 will support the side of the upper 3, and the end of the second support plate near the brush 23 will support the side of the sole 5, such as... Figure 5 As shown, there is usually a 4mm height difference between the upper 3 and the sole 5 on the side, and the upper 3 is usually lower than the sole 5. Since there is exactly a 4mm difference between the distance between the first guide plate 21 and the end of the second guide plate 22 near the brush 23 and the brush 23, when the brush 23 is in perpendicular contact with the welt 4, the upper 3 and the shoe upper can just support the first guide plate 21 and the second guide plate 22, which can prevent the paint brush assembly 2 from shaking during movement.

[0042] It should be added here that: the first guide plate 21 is also provided with a connecting hole 24, the position of which corresponds to the brush 23. The paint outlet end of the paint needle 12 extends to the upper end of the brush 23 through the connecting hole, so that the paint flowing out from the paint outlet end of the paint needle 12 can fall onto the brush 23.

[0043] In using this embodiment, first connect the air inlet pipe 13 to the external air supply device, then open the control valve 112 to allow the paint to flow out and fall onto the brush 23. After the paint supply is complete, close the control valve 112 and place the welt 4 into the brush end of the painting assembly 2. You can then begin painting the welt 4.

[0044] It should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for painting welts, characterized in that: The paint supply assembly and the paint brushing assembly are fixed at the bottom of the paint supply assembly. The paint supply assembly comprises a paint storage tank, a paint outlet needle and an air inlet pipe, wherein the paint outlet needle and the air inlet pipe are respectively fixed at two ends of the paint storage tank and communicate with the paint storage tank, the paint outlet end of the paint outlet needle communicates with the paint brushing assembly, and the paint outlet needle is used for supplying paint to the paint brushing assembly. The paint brushing assembly comprises a first guide plate, a second guide plate and a brush, wherein the first guide plate is fixed at the bottom of the paint storage tank, one end of the top surface of the second guide plate is fixedly connected with the first guide plate, the other end is raised to fix and hold the brush between the first guide plate and the second guide plate, the height of the brush is the same as the height of the strip, and the second guide plate has a gap between the raised end and the first guide plate, which is just enough to allow the strip to be clamped between the end of the first guide plate and the end of the second guide plate close to the brush.

2. A striping apparatus as claimed in claim 1, wherein: The paint storage tank comprises a shell, a baffle, a stopper and a control valve, wherein the baffle and the stopper are located inside the shell, the baffle is fixedly connected with the inner wall of the shell, the stopper is slidingly installed between the baffle and the air inlet pipe, and the baffle and the stopper divide the inside of the shell into three parts which are not communicated with each other. The baffle is provided with a paint outlet hole, the paint outlet needle communicates with the paint outlet hole through a pipeline, and the control valve is installed on the pipeline between the paint outlet needle and the paint outlet hole.

3. A striping apparatus as claimed in claim 2, wherein: The paint storage tank further comprises a paint supplementing through hole formed in the shell and a sealing cover threadedly installed in the paint supplementing through hole to block the paint supplementing through hole, and the paint supplementing through hole is located between the baffle and the stopper.

4. A striping apparatus as claimed in claim 3, wherein: The end of the first guide plate and the second guide plate close to the brush has a length difference, and the difference is the same as the height difference of the side surface of the upper and the sole.

5. A striping apparatus as claimed in claim 4, wherein: The length difference of the end of the first guide plate and the second guide plate close to the brush is 4mm.

6. A strip painting device according to any one of claims 2-5, characterized in that: The control valve is a press-through valve.