Multi-station roller coating device for leather

Abstract

The utility model belongs to the technical field of leather processing, and particularly relates to a leather multi-station roller coating device which comprises a rack, a first conveying part and a coating group, the first conveying part is used for conveying leather; the coating group is arranged above the first conveying part and comprises a coating driving part, a first coating roller and a second coating roller; the coating driving part drives the two coating rollers to rotate; the second coating roller is arranged on one side of the first coating roller and arranged in the conveying direction of the first conveying part. Two coating gaps are correspondingly formed between the two coating rollers and the first conveying part, leather sequentially penetrates through the two coating gaps, so that the surface of the leather is sequentially in contact with the outer side face of the first coating roller and the outer side face of the second coating roller, and the two coating rollers can brush different coatings on the surface of the leather; therefore, two different brushing actions such as repairing, oil coating and printing are completed on the leather, so that the time and energy consumed for transferring the leather in different brushing devices are reduced, the time cost is reduced, and the processing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of leather processing, in particular to a leather multi-station roller coating device. Background Art

[0002] Leather is a common item in our daily lives, such as leather chairs, shoes, and bags. Leather can be categorized as either artificial or natural leather. Natural leather is derived from the skins of animals like pigs, cows, and sheep. Natural leather often has dents and damage on its surface, requiring coating during processing. Sometimes, it's also coated with pigments, protective films, and other materials to enhance its aesthetic appeal and longevity.

[0003] The prior art has devices for brushing leather, such as the leather repairing equipment disclosed in Chinese utility model patent CN217190518U, which includes a frame, a coating mechanism and a coating evenly spreading mechanism; the coating mechanism includes a first leather first conveying component, a coating roller and a coating roller driving component; both ends of the coating roller are rotatably connected to the frame and driven to rotate by the coating roller driving component; the coating roller is located above the first leather first conveying component and a repairing gap is formed between the two; the coating evenly spreading mechanism includes a second leather first conveying component, a coating roller and a mounting frame driving component; the coating roller is slidably mounted on the frame through a coating roller mounting frame and is driven to move back and forth by the mounting frame driving component, and the coating roller is located above the second leather first conveying component and a coating gap is formed between the two; the utility model repairs scratches and pits on the leather surface through the coating roller, and applies paint into the scratches and pits on the leather surface through the coating roller, thereby repairing the leather surface.

[0004] However, the leather brushing device of the above utility model patent and the prior art can only perform one of the functions of repairing, oiling and printing. When multiple different brushing operations are required on the leather, manual or robotic transfer of the leather from one brushing device to another is required, which consumes a lot of time and energy, increases labor costs and reduces leather processing efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a leather multi-station roller coating device, aiming to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a leather multi-station roller coating device, comprising a frame, a first conveying group, and a coating group; the first conveying group is arranged on the frame; the first conveying group includes a first conveying drive component and a first conveying member; the first conveying member is driven by the first conveying drive component to rotate relative to the frame for conveying leather; the coating group is arranged above the first conveying member; the coating group includes a coating drive component, a first coating roller, and a second coating roller; the first coating roller and the second coating roller can rotate relative to the frame under the drive of the coating drive component; the second coating roller is arranged on one side of the first coating roller and both are arranged along the conveying direction of the first conveying member; two coating gaps are respectively provided between the first coating roller and the second coating roller corresponding to the first conveying member, and the leather passes through the two coating gaps in turn so that its surface contacts the outer side surface of the first coating roller and the outer side surface of the second coating roller in turn.

[0007] Optionally, the paint drive component includes a first paint drive motor and a second paint drive motor; the first paint drive motor and the second paint drive motor are both arranged on the frame; the output end of the first paint drive motor is transmission connected to the input end of the first paint roller, and the output end of the second paint drive motor is transmission connected to the input end of the second paint roller.

[0008] Optionally, a waste material removal component is provided on the side of the first coating roller and / or the second coating roller; the waste material removal component includes a waste material removal frame and a waste material removal piece; the waste material removal piece is installed on the frame through the waste material removal frame; a scraping gap is provided between the waste material removal piece and the coating roller, and the scraping gap is greater than or equal to the difference between the coating gap and the leather thickness.

[0009] Optionally, the excess material removal component includes a driving cylinder; the driving cylinder is provided on the excess material removal frame, and the excess material removal piece is connected to the output end of the driving cylinder so as to be able to perform linear reciprocating motion under the drive of the driving cylinder.

[0010] Optionally, the frame is provided with a limit frame beside the driving cylinder, the limit frame includes a limit straight rod; a limit connector is slidably connected to the limit straight rod; the excess material removal part and the output end of the driving cylinder are both connected to the limit connector.

[0011] Optionally, the first conveying group includes a positioning component; the positioning component is provided in two groups and corresponds to the first coating roller and the second coating roller respectively; the positioning component includes a positioning roller, which is provided below the coating roller and is rotatably connected to the frame; the first conveying member rotates around the outer sides of the two positioning rollers.

[0012] Optionally, the positioning component includes a positioning bracket, a positioning cylinder, and a positioning connecting frame; the positioning bracket is fixed to the frame, and the positioning cylinder is hingedly connected to the positioning bracket; one end of the positioning connecting frame is rotatably connected to the output end of the positioning cylinder, and the other end is rotatably connected to the frame; the end of the positioning roller is rotatably connected to the middle part of the positioning connecting frame through a transmission positioning bearing.

[0013] Optionally, the leather multi-station roller coating device includes a tension adjustment group; the tension adjustment group includes a tension adjustment bracket, a tension adjustment cylinder, and a tension adjustment connecting frame; the tension adjustment bracket is fixed to the frame, and the tension adjustment cylinder is hingedly connected to the tension adjustment bracket; one end of the tension adjustment connecting frame is rotatably connected to the output end of the tension adjustment cylinder, and the other end is rotatably connected to the frame; the first conveying group includes a tension adjustment roller; the tension adjustment roller is connected to the middle part of the tension adjustment bracket; the first conveying member can slide relative to the outer side of the tension adjustment roller.

[0014] Optionally, the frame is provided with a residual material receiving component near the output end of the first conveying group; the residual material receiving component includes a residual material receiving fixing component and a residual material receiver; the residual material receiving fixing component is installed on the frame; the residual material receiver is placed on the residual material receiving fixing component and its receiving interface faces the first conveying component.

[0015] Optionally, the frame is provided with a second conveying group beside the first conveying group; the second conveying group includes a second conveying drive component and a second conveying member; the second conveying member is driven by the second conveying drive component to rotate relative to the frame to convey the leather to the first conveying group.

[0016] Compared with the prior art, the above one or more technical solutions in the leather multi-station roller coating device provided by the embodiment of the utility model have at least one of the following technical effects: the leather passes through the two paint gaps in sequence under the drive of the first conveyor; when passing through the first paint gap, the leather surface contacts the outer side surface of the first paint roller; when passing through the second paint gap, the leather surface contacts the outer side surface of the second paint roller; the first paint roller and the second paint roller can respectively apply different paints to the leather surface by rolling, thereby completing two different brushing actions such as repairing, oiling, and printing on the leather, so as to reduce the time and energy spent by workers on transferring leather in different brushing devices, reduce time costs, and improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 This is a schematic structural diagram of the first conveying group.

[0020] Figure 3 for Figure 1 Enlarged schematic diagram of circle A in the middle.

[0021] Figure 4 It is a structural diagram of the adjustment component.

[0022] Figure 5 for Figure 1 Enlarged schematic diagram of circle B in the middle.

[0023] Among them, the reference numerals in the figures are:

[0024] 1. Frame;

[0025] 2. First conveying group; 21. First conveying member;

[0026] 3. Paint group; 311. First paint drive motor; 312. Second paint drive motor; 321. First paint roller; 322. Second paint roller; 323. Paint gap;

[0027] 4. Residual material removal component; 41. Residual material removal frame; 42. Driving cylinder; 431. Limiting straight rod; 432. Limiting connecting piece; 44. Residual material removal component; 441. Scraping gap;

[0028] 5. Positioning components; 51. Positioning roller; 52. Positioning bracket; 53. Positioning cylinder; 54. Positioning connecting frame;

[0029] 6. Tension adjustment group; 61. Tension adjustment bracket; 62. Tension adjustment cylinder; 63. Tension adjustment connecting frame; 64. Tension adjustment roller;

[0030] 7. Residual material receiving component; 71. Residual material receiving fixture; 72. Residual material receiver;

[0031] 8. Second conveying group; 81. Second conveying member. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0035] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0036] In the first embodiment of the present invention, a multi-station roller coating device for leather is provided. Figure 1 and Figure 2 ,include:

[0037] Frame 1, used for fixing and supporting;

[0038] The first conveying group 2 is arranged on the frame 1; the first conveying group 2 includes a first conveying drive component and a first conveying member 21; the first conveying member 21 is driven by the first conveying drive component to rotate relative to the frame 1 for conveying leather; the first conveying group 2 is configured as a belt conveying assembly in this embodiment, the first conveying drive component is configured as a motor, and the first conveying member 21 is configured as a belt; the first conveying group 2 also includes a rotating wheel for assisting the movement of the first conveying member 21; the belt conveying assembly is a prior art in this field, and its structure is not described in detail.

[0039] The coating group 3 is arranged above the first conveying member 21; the coating group 3 includes a coating drive component, a first coating roller 321, and a second coating roller 322; the first coating roller 321 and the second coating roller 322 can rotate relative to the frame 1 under the drive of the coating drive component; the second coating roller 322 is arranged on one side of the first coating roller 321 and both are arranged along the conveying direction of the first conveying member 21; a coating gap 323 is provided between the first coating roller 321 and the first conveying member 21, and another coating gap 323 is provided between the second coating roller 322 and the first conveying member 21. The leather passes through the two coating gaps 323 in sequence so that its surface contacts the outer side surface of the first coating roller 321 and the outer side surface of the second coating roller 322 in sequence.

[0040] Compared with the prior art, the above one or more technical solutions in the leather multi-station roller coating device provided by the embodiment of the utility model have at least one of the following technical effects: the leather passes through the two paint gaps 323 in sequence under the drive of the first conveyor 21; when passing through the first paint gap 323, the leather surface contacts the outer side surface of the first paint roller 321; when passing through the second paint gap 323, the leather surface contacts the outer side surface of the second paint roller 322; the first paint roller 321 and the second paint roller 322 can apply different paints to the leather surface by rolling, thereby completing two different brushing actions such as repairing, oiling, and printing on the leather, so as to reduce the time and energy spent by workers on transferring leather in different brushing devices, reduce time costs, and improve processing efficiency.

[0041] In another embodiment of the present invention, the coating group 3 further includes a third coating roller; the structure and function of the third coating roller are the same as those of the first coating roller 321, so that the leather multi-station roller coating device can perform three different brushing actions on the leather surface.

[0042] In another embodiment of the present invention, Figure 2 The paint driving component includes a first paint driving motor 311 and a second paint driving motor 312; the first paint driving motor 311 and the second paint driving motor 312 are both arranged on the frame 1 and fixedly connected to the frame 1; the output end of the first paint driving motor 311 is transmission-connected to the input end of the first paint roller 321, and the output end of the second paint driving motor 312 is transmission-connected to the input end of the second paint roller 322; the above-mentioned transmission connection method can be set as a gear box transmission connection structure, a belt and pulley connection structure, or a chain and sprocket connection structure, which is not limited here; the first paint driving motor 311 and the second paint driving motor 312 are respectively connected to the two paint rollers, so that the first paint roller 321 and the second paint roller 322 can operate independently at their respective speeds without interfering with each other.

[0043] In another embodiment of the present invention, Figure 1 and Figure 3, a waste material removal component 4 is provided on the side of the first coating roller 321 and / or the second coating roller 322, that is: only the first coating roller 321 is provided with a waste material removal component 4; or, only the second coating roller 322 is provided with a waste material removal component 4; or, both coating rollers are provided with a waste material removal component 4; preferably, both coating rollers are provided with a waste material removal component 4 on the side, so that excess paint on the surface of the coating roller can be scraped off by the waste material removal component 4, which is convenient for controlling the thickness of the paint finally brushed on the leather; the waste material removal component 4 includes a waste material removal frame 41 and a waste material removal member 44; the waste material removal member 44 is installed on the frame 1 through the waste material removal frame 41; a scraping gap 441 is provided between the waste material removal member 44 and the coating roller, and the scraping gap 441 is greater than or equal to the difference between the coating gap 323 and the leather thickness, so that the paint on the coating roller can be brushed on the leather surface; the width of the waste material removal member 44 is greater than or equal to the width of the coating roller, so as to facilitate scraping off excess paint on the surface of the coating roller.

[0044] Further, refer to Figure 3 The residual material removal component 4 includes a driving cylinder 42; the driving cylinder 42 is arranged on the residual material removal frame 41, and the residual material removal member 44 is connected to the output end of the driving cylinder 42 so that it can perform linear reciprocating motion under the drive of the driving cylinder 42, so as to adjust the width of the scraping gap 441.

[0045] Further, refer to Figure 3 The frame 1 is provided with a limit frame beside the driving cylinder 42, and the limit frame includes a limit straight rod 431, the length direction of the limit straight rod is parallel to the moving direction of the output end of the driving cylinder 42; the limit straight rod is slidably connected to the limit connector 432; the excess material removal member 44 and the output end of the driving cylinder 42 are both connected to the limit connector 432; when the driving cylinder 42 drives the excess material removal member 44 to move, the limit connector 432 slides on the limit straight rod, making the movement of the excess material removal member 44 more stable.

[0046] In another embodiment of the present invention, Figure 1 and Figure 4 The first conveying group 2 includes a positioning component 5; the positioning component 5 is provided with two groups and corresponds to the first coating roller 321 and the second coating roller 322 respectively; the positioning component 5 includes a positioning roller 51, the positioning roller 51 of one positioning component 5 is arranged below the first coating roller 321, and the positioning roller 51 of the other positioning component 5 is arranged below the second coating roller 322; the two positioning rollers 51 are both rotatably connected to the frame 1; the first conveying member 21 rotates around the outer sides of the two positioning rollers 51; when brushing the paint, the positioning roller 51 supports and limits the first conveying member 21 from below to facilitate the paint to adhere to the upper surface of the leather.

[0047] Further, refer to Figure 4The positioning component 5 includes a positioning bracket 52, a positioning cylinder 53, and a positioning connecting frame 54; the positioning bracket 52 is fixedly connected to the frame 1 by bolts, gas welding, or other means, and the positioning cylinder 53 is hingedly connected to the positioning bracket 52; one end of the positioning connecting frame 54 is rotatably connected to the output end of the positioning cylinder 53 through a rotating shaft or a rotating wheel, and the other end is rotatably connected to the frame 1 through a rotating shaft or a rotating wheel; the end of the positioning roller 51 is rotatably connected to the middle part of the positioning connecting frame 54 through a transmission positioning bearing; the output end of the positioning cylinder 53 can drive the positioning connecting frame 54 to rotate relative to the frame 1, and the rotation of the positioning connecting frame 54 drives the positioning roller 51 to move relative to the paint roller to increase or decrease the width of the paint gap 323, so as to adapt to leather of different thicknesses and adjust the brushing thickness of the paint, with high flexibility.

[0048] In another embodiment of the present invention, Figure 1 and Figure 5 The leather multi-station roller coating device includes a tension adjustment group 6, which is used to adjust the tightness of the first conveying member 21; the tension adjustment group 6 includes a tension adjustment bracket 61, a tension adjustment cylinder 62, and a tension adjustment connecting frame 63; the tension adjustment bracket 61 is fixedly connected to the frame 1 by bolt connection, gas welding connection, or other means, and the tension adjustment cylinder 62 is hingedly connected to the tension adjustment bracket 61; one end of the tension adjustment connecting frame 63 is rotatably connected to the output end of the tension adjustment cylinder 62 through a rotating shaft or a rotating wheel, and the other end is connected to the frame 1 Rotatingly connected through a rotating shaft or a rotating wheel; the first conveying group 2 includes a tension adjustment roller 64; the tension adjustment roller 64 is connected to the tension adjustment connecting frame 63; the first conveying member 21 rotates around the outside of the tension adjustment roller 64; preferably, the tension adjustment roller 64 is rotationally connected to the tension adjustment connecting frame 63 through a rotating shaft or a rotating wheel, so that the tension adjustment roller 64 can rotate together with the first conveying member 21 under the drive of the first conveying member 21, thereby reducing the friction coefficient between the first conveying member 21 and the tension adjustment roller 64 when the first conveying member 21 rotates, and improving the rotation efficiency of the first conveying member 21.

[0049] In another embodiment of the present invention, Figure 1 and Figure 5 The frame 1 is provided with a residual material receiving component 7 under the first conveying member 21, and the residual material receiving component 7 is used to receive the excess paint dripping from the first conveying member 21, so as to facilitate the recycling of the paint and keep the first conveying member 21 clean and tidy; the residual material receiving component 7 includes a residual material receiving fixing component 71 and a residual material receiver 72; the residual material receiver 72 is installed on the frame 1 through the residual material receiving fixing component 71; the residual material receiver 72 is set to an open basin body, bottle body, or box body, and the receiving interface of the residual material receiver 72 faces the first conveying member 21.

[0050] Further, refer to Figure 1The frame 1 is provided with a second conveying group 8 next to the first conveying group 2; the second conveying group 8 includes a second conveying driving component and a second conveying member 81; the second conveying member 81 is driven by the second conveying driving component to rotate relative to the frame 1 to convey the leather to the first conveying group 2; the structure of the second conveying group 8 is the same as that of the first conveying group 2 in the first embodiment, and will not be repeated here.

[0051] The rest of this embodiment is the same as that of the first embodiment. The features not explained in this embodiment are all based on the explanations of the first embodiment and will not be described in detail here.

[0052] The above description further details the present invention in conjunction with specific preferred embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. A person skilled in the art of the present invention will appreciate that its architecture is flexible and adaptable, allowing for the development of a series of products without departing from the present invention's concept. Simple deductions or substitutions should be considered within the scope of patent protection for the present invention as defined by the submitted claims.

Claims

1. A leather multi-station roller coating device, characterized in that: include: frame; a first conveying group, provided on the frame; the first conveying group comprises a first conveying driving component and a first conveying member; the first conveying member is driven by the first conveying driving component to rotate relative to the frame for conveying leather; A coating group is arranged above the first conveying member; the coating group includes a coating driving member, a first coating roller, and a second coating roller; the first coating roller and the second coating roller can rotate relative to the frame under the drive of the coating driving member; the second coating roller is arranged on one side of the first coating roller and the two are arranged along the conveying direction of the first conveying member; two coating gaps are respectively provided between the first coating roller and the second coating roller corresponding to the first conveying member, and the leather passes through the two coating gaps in turn so that its surface contacts the outer side surface of the first coating roller and the outer side surface of the second coating roller in turn.

2. The leather multi-station roller coating device according to claim 1, characterized in that: The paint driving component includes a first paint driving motor and a second paint driving motor; the first paint driving motor and the second paint driving motor are both arranged on the frame; the output end of the first paint driving motor is transmission-connected to the input end of the first paint roller, and the output end of the second paint driving motor is transmission-connected to the input end of the second paint roller.

3. The leather multi-station roller coating device according to claim 1, characterized in that: A residual material removal component is provided on the side of the first coating roller and / or the second coating roller; the residual material removal component includes a residual material removal frame and a residual material removal piece; The waste material removal piece is installed on the frame through the waste material removal frame; a scraping gap is provided between the waste material removal piece and the coating roller, and the scraping gap is greater than or equal to the difference between the coating gap and the leather thickness; the width of the waste material removal piece is greater than or equal to the width of the coating roller.

4. The leather multi-station roller coating device according to claim 3, characterized in that: The excess material removal component includes a driving cylinder; the driving cylinder is arranged on the excess material removal frame, and the excess material removal piece is connected to the output end of the driving cylinder so as to be able to perform linear reciprocating motion under the drive of the driving cylinder.

5. The leather multi-station roller coating device according to claim 4, characterized in that: The frame is provided with a limit frame beside the driving cylinder, and the limit frame includes a limit straight rod; a limit connecting piece is slidably connected to the limit straight rod; the excess material removal piece and the output end of the driving cylinder are both connected to the limit connecting piece.

6. The leather multi-station roller coating device according to claim 1, characterized in that: The first conveying group includes a positioning component; the positioning component is provided with two groups and corresponds to the first coating roller and the second coating roller respectively; the positioning component includes a positioning roller, which is provided below the coating roller and is rotatably connected to the frame; the first conveying member rotates around the outer sides of the two positioning rollers.

7. The leather multi-station roller coating device according to claim 6, characterized in that: The positioning component includes a positioning bracket, a positioning cylinder, and a positioning connecting frame; the positioning bracket is fixedly connected to the frame, and the positioning cylinder is hingedly connected to the positioning bracket; one end of the positioning connecting frame is rotatably connected to the output end of the positioning cylinder, and the other end is rotatably connected to the frame; the end of the positioning roller is rotatably connected to the middle part of the positioning connecting frame through a transmission positioning bearing.

8. The leather multi-station roller coating device according to claim 1, characterized in that: The leather multi-station roller coating device includes a tension adjustment group; the tension adjustment group includes a tension adjustment bracket, a tension adjustment cylinder, and a tension adjustment connecting frame; the tension adjustment bracket is fixed to the frame, and the tension adjustment cylinder is hingedly connected to the tension adjustment bracket; one end of the tension adjustment connecting frame is rotatably connected to the output end of the tension adjustment cylinder, and the other end is rotatably connected to the frame; the first conveying group includes a tension adjustment roller; the tension adjustment roller is connected to the tension adjustment connecting frame; the first conveying member rotates around the outer side of the tension adjustment roller.

9. The leather multi-station roller coating device according to any one of claims 1 to 8, characterized in that: The frame is provided with a residual material receiving component below the first conveying member; the residual material receiving component includes a residual material receiving fixing member and a residual material receiver; the residual material receiver is installed on the frame through the residual material receiving fixing member; the receiving interface of the residual material receiver faces the first conveying member.

10. The leather multi-station roller coating device according to any one of claims 1 to 8, characterized in that: The frame is provided with a second conveying group beside the first conveying group; the second conveying group includes a second conveying driving component and a second conveying member; the second conveying member is driven by the second conveying driving component to rotate relative to the frame to convey the leather to the first conveying group.

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