Roll changing device for a leather oiling machine

Abstract

The utility model belongs to the technical field of coating machinery, especially relates to a leather oiling machine roll changing device, including frame, be equipped with feeding roller on the frame, the both ends of feeding roller are respectively rotationally connected in the both sides of frame and drive its rotation through first drive arrangement, still be equipped with roll changing mechanism on the frame, and roll changing mechanism includes first coating roller, second coating roller and roll changing subassembly, first coating roller and second coating roller are connected through connecting piece between, roll changing subassembly acts on connecting piece and can control first coating roller and second coating roller alternately close or far away from feeding roller, still be equipped with second drive arrangement on the frame, and second drive arrangement can drive first coating roller or second coating roller rotation. Through setting first coating roller and second coating roller and alternately using through roll changing subassembly, can satisfy one demand of customer diversification, and the efficiency of roll changing is higher than traditional dismounting roll changing, and roll changing is relatively simple, improves production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of coating machinery technology, and in particular relates to a roller changing device for a leather oil return machine. Background Technology

[0002] The leather softening process involves applying softening oil to the surface of the leather. Current technology has evolved from manual spraying to machine application.

[0003] Existing machines, such as the slurry coating apparatus disclosed in CN110026317A, include a frame and a coating roller, a feeding roller, a feeding device, a first drive device, and a slurry conveying device mounted on the frame. The two ends of the coating roller are rotatably connected to both sides of the frame and driven to rotate by the first drive device. Both ends of the feeding roller are movably connected to the frame and driven to rotate by a second drive device. The coating roller is located below the feeding roller, forming a gap between them. The feeding device is located on the feed side of the gap. The slurry conveying device has an outlet located on the coating roller. The slurry coating apparatus also includes a slurry doctor blade device, which includes a third drive device mounted on the frame and a slurry doctor blade driven and connected to the third drive device. The slurry doctor blade is located below the outlet. The third drive device drives the slurry doctor blade to approach or move away from the coating roller. When the slurry doctor blade approaches the coating roller, its end abuts against the coating roller.

[0004] The existing leather return oil machine only has one coating roller. If the customer needs a coating roller of a different specification, the machine needs to be stopped to replace the existing coating roller with a new one to continue working. This method is inefficient and troublesome, and affects production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a roller changing device for a leather oil return machine, which aims to solve the problem in the background art that "existing leather oil return machines only have one coating roller. If customers need coating rollers of different specifications, the machine needs to be stopped to replace the existing coating roller with a new one to continue working. This method is inefficient and troublesome, and affects production efficiency."

[0006] To achieve the above objectives, this utility model provides a leather oil return machine roller changing device, including a frame; a feeding roller is provided on the frame, with its two ends rotatably connected to both sides of the frame and driven to rotate by a first driving device; a roller changing mechanism is also provided on the frame, the roller changing mechanism including a first coating roller, a second coating roller, and a roller changing assembly; the first coating roller and the second coating roller are connected by a connector, the roller changing assembly acts on the connector and can control the first coating roller and the second coating roller to alternately approach or move away from the feeding roller; a second driving device is also provided on the frame, the second driving device can drive the first coating roller or the second coating roller to rotate.

[0007] Optionally, there are two connectors, which are connected at both ends of the first coating roller and the second coating roller, respectively. The two connectors are connected to the roller changing assembly, which is mounted on the frame and can act on the two connectors and control the first coating roller and the second coating roller to alternately move closer to or away from the feed roller.

[0008] Optionally, the roller changing assembly includes a rotary cylinder, a first pushing cylinder, and a second pushing cylinder; one of the connecting parts is connected to the first pushing cylinder via a bearing seat, and the other connecting part is connected to the rotary cylinder, which is connected to the second pushing cylinder; the rotary cylinder can provide rotational force to make the first coating roller and the second coating roller alternate, and the first pushing cylinder and the second pushing cylinder are used to provide support force and can control the lifting and lowering of the first coating roller and the second coating roller.

[0009] Optionally, the frame is also provided with a limiting block, which will play a limiting and guiding role when the first coating roller or the second coating roller approaches the feeding roller.

[0010] Optionally, the bottom of the limiting block is provided with an arc-shaped limiting part, the shape of which is adapted to the end shape of the first coating roller or the second coating roller.

[0011] Optionally, when the first coating roller or the second coating roller is close to the feed roller, it is located below the feed roller and leaves a gap.

[0012] Optionally, it also includes a material blocking assembly; the material blocking assembly includes a mounting plate mounted on the frame and a material blocking scraper mounted on the mounting plate, a scraper mounting seat is mounted on one end of the mounting plate, and the material blocking scraper is fixedly mounted on the scraper mounting seat.

[0013] Optionally, it also includes a refrigerant coating assembly; the refrigerant coating assembly includes a coating blade driving component disposed on the frame, and a refrigerant coating blade disposed on the movable end of the coating blade driving component; the coating blade driving component drives the refrigerant coating blade to approach or move away from the coating roller, and abuts against the surface of the coating roller when the refrigerant coating blade approaches the coating roller.

[0014] Optionally, the coating knife driving component includes a guide component, a mounting base, and a coating knife driving cylinder; the guide component is mounted on the frame, and the movable end of the guide component is mounted on the mounting base, on which the soft oil coating knife is fixedly mounted; the coating knife driving cylinder is mounted on the frame, and the driving rod of the coating knife driving cylinder is fixedly connected to the mounting base.

[0015] Optionally, a leather oil return machine includes a leather oil return machine roller changing device.

[0016] Compared with the prior art, the above-mentioned one or more technical solutions in the leather oil return machine roller changing device provided in this embodiment of the utility model have at least one of the following technical effects:

[0017] By setting up a first coating roller and a second coating roller and using them alternately through a roller changing assembly, diverse customer needs can be met. At the same time, the roller changing efficiency is higher than that of traditional disassembly and roller changing, the roller changing is simpler, and production efficiency is improved. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0021] Figure 3 This is a schematic diagram of the limiting block structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the layout structure of the first and second driving devices, the feeding roller, the first coating roller, and the second coating roller of this utility model.

[0023] The following are the labeling elements in the figure:

[0024] 100. Frame; 110. First drive unit; 120. Second drive unit; 130. Limiting block; 131. Limiting part;

[0025] 200. Feeding roller;

[0026] 300. First coating roller;

[0027] 400. Second coating roller;

[0028] 500. Roller changing assembly; 510. Rotary cylinder; 520. Second push cylinder;

[0029] 600. Connectors;

[0030] 700. Material stop assembly; 710. Mounting plate; 720. Material stop scraper; 730. Scraper mounting base;

[0031] 800. Soft oil return application assembly; 810. Applicator drive component; 811. Guide component; 812. Mounting base; 813. Applicator drive cylinder; 820. Soft oil return applicator. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended 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 this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] In one embodiment of this utility model, according to Figure 1-4 As shown, it includes a frame 100; a feeding roller 200 is provided on the frame 100, and the two ends of the feeding roller 200 are respectively rotatably connected to the two sides of the frame 100 and driven to rotate by a first driving device 110. The first driving device 110 can be a motor, which can be directly connected to the feeding roller 200 or connected to the feeding roller 200 through a transmission mechanism.

[0037] The frame 100 is also equipped with a roller changing mechanism, which includes a first coating roller 300, a second coating roller 400, and a roller changing assembly 500. The first coating roller 300 and the second coating roller 400 are connected by a connector 600. The roller changing assembly 500 acts on the connector 600 and can control the first coating roller 300 and the second coating roller 400 to alternately move closer to or further away from the feed roller 200. Specifically, the roller changing assembly 500 acts on a connecting piece, controlling the rotation of the connecting piece, thereby realizing the replacement of the positions of the first coating roller 300 and the second coating roller 400. It can be understood that the connecting piece is fixedly connected to the first coating roller 300 and the second coating roller 400. The first coating roller 300 and the second coating roller 400 can be fixed-shaft coating rollers, with the intermediate shaft not rotating, and the roller sleeve rotating under the drive of a belt or transmission gear.

[0038] The frame 100 is also equipped with a second drive device 120, which can drive the first coating roller 300 or the second coating roller 400 to rotate. It can be understood that the second drive device 120 is a motor, which can drive the first coating roller 300 or the second coating roller 400 to rotate under the drive of the transmission structure. The transmission structure may include belts and gears.

[0039] It is understandable that the linkage structure is a conventional technical means for those skilled in the art, and the belts and gears mentioned here are also technical means frequently implemented by those skilled in the art, so they will not be elaborated on here.

[0040] Specifically, by setting up a first coating roller 300 and a second coating roller 400 and using them alternately through a roller changing assembly 500, diverse customer needs can be met. At the same time, the roller changing efficiency is higher than that of traditional disassembly and roller changing, the roller changing is simpler, and production efficiency is improved.

[0041] In another embodiment of this utility model, according to Figure 1 and 2 As shown, there are two connecting pieces 600. These two connecting pieces 600 are connected to the two ends of the first coating roller 300 and the second coating roller 400, respectively. The two connecting pieces 600 are connected to the roller changing assembly 500, which is mounted on the frame 100 and acts on the two connecting pieces 600, controlling the first coating roller 300 and the second coating roller 400 to alternately move closer to or further away from the feed roller 200. Specifically, the connecting pieces 600 are connected to the shafts of the first coating roller 300 and the second coating roller 400, so that when the roller changing assembly 500 drives the connecting pieces 600 to rotate, the positions of the first coating roller 300 and the second coating roller 400 can be interchanged.

[0042] The roller changing assembly 500 includes a rotary cylinder 510, a first pushing cylinder (not shown), and a second pushing cylinder 520. The rotary cylinder 510 provides rotational force to alternate the first coating roller 300 and the second coating roller 400. It is understood that the rotary cylinder 510 is a mature existing technology and will not be described in detail here. The rotary cylinder 510, the first pushing cylinder, and the second pushing cylinder 520 are all located on both sides of the frame 100.

[0043] One end of the frame 100 is equipped with a first pushing cylinder, and a connecting member 600 of the first pushing cylinder passes through a bearing seat via a rotating member. The first pushing cylinder is connected to the bearing seat. The other end of the frame 100 is equipped with a rotating cylinder, which is connected to another connecting member 600. A second pushing cylinder 520 is located at the bottom of the rotating cylinder. Furthermore, the first pushing cylinder and the second pushing cylinder 520 serve to provide support and lift / lower. When changing rollers, the first coating roller 300 and the second coating roller 400 are first lowered to create space for rotation and roller changing. After rotation, the first coating roller 300 and the second coating roller 400 are then raised so that the replacement roller reaches the predetermined position.

[0044] In another embodiment of this utility model, according to Figure 3As shown, a limiting block 130 is also provided inside the frame 100. The bottom of the limiting block 130 has an arc-shaped limiting part 131. The shape of the arc-shaped limiting part 131 is adapted to the shape of the end of the first coating roller 300 or the second coating roller 400. When the first coating roller 300 or the second coating roller 400 is being replaced and is approaching the feed roller 200, its end will enter the arc-shaped limiting part 131. As it continues to approach, it will reach the arc-shaped opening of the arc-shaped limiting part 131, which will limit its movement and prevent it from moving further. At the same time, the arc-shaped limiting part 131 also serves as a guide, allowing it to move along the arc-shaped position.

[0045] In another embodiment of this utility model, according to Figure 1 and 2 As shown, when the first coating roller 300 or the second coating roller 400 approaches the feed roller 200, it is positioned below the feed roller 200 with a gap. The leather is pressed against the gap between the feed roller 200 and the coating roller, with the back of the leather in contact with the coating roller. How the feed roller 200 and the coating roller transport the leather is well-established prior art and will not be described in detail here.

[0046] In another embodiment of this utility model, according to Figure 1 As shown, it also includes a material blocking assembly 700; the material blocking assembly 700 includes a mounting plate 710 mounted on the frame 100, and a material blocking scraper 720 mounted on the mounting plate 710. A scraper mounting seat 730 is mounted on one end of the mounting plate 710, and the material blocking scraper 720 is fixedly mounted on the scraper mounting seat 730. When the leather is conveyed along the coating roller under the drive of the coating roller, the material blocking scraper 720 blocks the leather, causing the leather to separate from the surface of the coating roller on the output side of the coating roller, so that the leather after being coated with softening oil is output along the material blocking scraper 720, preventing the leather from sticking to the coating roller and ensuring the normal operation of the softening oil coating mechanism.

[0047] In another embodiment of this utility model, such as Figure 1 and 2 As shown, it also includes a soft oil return coating assembly 800; the soft oil return coating assembly 800 includes a coating knife driving component 810 disposed on the frame 100, and a soft oil return coating knife 820 disposed on the moving end of the coating knife driving component 810; the coating knife driving component 810 drives the soft oil return coating knife 820 to approach or move away from the coating roller, and the soft oil return coating knife 820 abuts against the surface of the coating roller when it approaches the coating roller.

[0048] Specifically, the recycled softened oil is conveyed to the upper surface of the recycled softened oil applicator 820 via an oil conveying device (not shown in the figure). As the coating roller rotates, the recycled softened oil on the recycled softened oil applicator 820 is evenly applied to the surface of the coating roller. The upper surface of the recycled softened oil applicator 820 is inclined, with the bottom of the inclined surface abutting against the surface of the coating roller. This ensures that the recycled softened oil on the recycled softened oil applicator 820 collects at the connection point between the recycled softened oil applicator 820 and the coating roller, guaranteeing that the recycled softened oil on the recycled softened oil applicator 820 is evenly applied to the surface of the coating roller.

[0049] In another embodiment of this utility model, such as Figure 1 and 2 As shown, the coating blade drive unit 810 includes a guide component 811, a mounting base 812, and a coating blade drive cylinder 813. The guide component 811 is mounted on the frame 100, and the moving end of the guide component 811 is mounted on the mounting base 812. A soft oil return coating blade 820 is fixedly mounted on the mounting base 812. The coating blade drive cylinder 813 is mounted on the frame 100, and the drive rod of the coating blade drive cylinder 813 is fixedly connected to the mounting base 812. The soft oil return coating blade 820 is driven to move closer to or away from the coating roller by the coating blade drive cylinder 813.

[0050] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art, the architectural form of this utility model can be flexibly varied without departing from its concept, and a series of products can be derived. Any simple deductions or substitutions should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A roller changing device for a leather oil return machine, characterized in that, The device includes a frame; a feeding roller is mounted on the frame, with its two ends rotatably connected to both sides of the frame and driven to rotate by a first driving device; a roller changing mechanism is also mounted on the frame, comprising a first coating roller, a second coating roller, and a roller changing assembly; the first coating roller and the second coating roller are connected by a connector, and the roller changing assembly acts on the connector and can control the first coating roller and the second coating roller to alternately approach or move away from the feeding roller; a second driving device is also mounted on the frame, which can drive the first coating roller or the second coating roller to rotate.

2. The leather oil return machine roller changing device according to claim 1, characterized in that, The number of connectors is two, and the two connectors are connected to the two ends of the first coating roller and the second coating roller, respectively. The two connectors are connected to the roller changing assembly. The roller changing assembly is located on the frame and can act on the two connectors and control the first coating roller and the second coating roller to alternately move closer to or away from the feed roller.

3. The leather oil return machine roller changing device according to claim 2, characterized in that, The roller changing assembly includes a rotary cylinder, a first pushing cylinder, and a second pushing cylinder; one of the connecting parts is connected to the first pushing cylinder via a bearing seat, and the other connecting part is connected to the rotary cylinder, which is connected to the second pushing cylinder; the rotary cylinder can provide rotational force to make the first coating roller and the second coating roller alternate, and the first pushing cylinder and the second pushing cylinder are used to provide support force and can control the lifting and lowering of the first coating roller and the second coating roller.

4. The leather oil return machine roller changing device according to claim 1, characterized in that, The frame is also equipped with a limiting block, which will play a limiting and guiding role when the first coating roller or the second coating roller approaches the feeding roller.

5. The leather oil return machine roller changing device according to claim 4, characterized in that, The bottom of the limiting block is provided with an arc-shaped limiting part, the shape of which is adapted to the end shape of the first coating roller or the second coating roller.

6. The leather oil return machine roller changing device according to claim 1, characterized in that, When the first coating roller or the second coating roller is close to the feed roller, it is located below the feed roller and leaves a gap.

7. The leather oil return machine roller changing device according to claim 1, characterized in that, It also includes a material blocking assembly; the material blocking assembly includes a mounting plate mounted on the frame and a material blocking scraper mounted on the mounting plate, a scraper mounting seat is mounted on one end of the mounting plate, and the material blocking scraper is fixedly mounted on the scraper mounting seat.

8. The leather oil return machine roller changing device according to claim 1, characterized in that, It also includes a soft oil return coating assembly; the soft oil return coating assembly includes a coating knife driving component disposed on the frame, and a soft oil return coating knife disposed on the moving end of the coating knife driving component; the coating knife driving component drives the soft oil return coating knife to approach or move away from the coating roller, and abuts against the surface of the coating roller when the soft oil return coating knife approaches the coating roller.

9. The leather oil return machine roller changing device according to claim 8, characterized in that, The coating knife driving component includes a guide component, a mounting base, and a coating knife driving cylinder; the guide component is mounted on the frame, and the movable end of the guide component is mounted on the mounting base, on which the soft oil coating knife is fixedly mounted; the coating knife driving cylinder is mounted on the frame, and the driving rod of the coating knife driving cylinder is fixedly connected to the mounting base.

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