Leather drying device for leather production

Abstract

The utility model relates to the technical field of leather production, and discloses a leather drying device for leather production, which comprises a drying device body, a drying mechanism is arranged at the top of the drying device body, a support frame is arranged on the left side of the drying mechanism, and an auxiliary roller is rotatably connected to the inner side of the support frame. An extrusion mechanism is arranged on the left side of the top of the drying device body, and the drying mechanism comprises a drying assembly and an air supply assembly. During use, through the arranged drying mechanism, when drying work and preliminary dehydration are needed in leather production, a first servo motor drives a first rotating rod and a first transmission roller to rotate; and through cooperation of a chain and a chain wheel, a second rotating rod and a second transmission roller synchronously rotate, leather can be continuously conveyed, an air cylinder can adjust the distance between the pressing roller and the transmission rollers, and residual water in the leather is further squeezed under the combined action of the pressing roller, the first transmission roller and the second transmission roller.

Description

Technical Field

[0001] This utility model relates to the field of leather production technology, specifically to a leather drying device for leather production. Background Technology

[0002] In the leather production process, the drying stage plays a crucial role in the quality and performance of the leather. Early on, many leather manufacturers used natural air drying. This method was not only time-consuming, significantly extending the production cycle and reducing efficiency, but also highly susceptible to weather conditions. Rainy or humid weather could hinder the drying process, delaying production and potentially causing the leather to mold and deteriorate, severely impacting its quality. With technological advancements, simple drying equipment emerged, such as basic hot air drying boxes. While these devices shortened drying time to some extent and alleviated some of the limitations imposed by natural conditions, they ultimately proved more effective.

[0003] According to the description in the patent announcement (CN215638603U) of a drying device for leather production, the drying device for leather production includes "feeding components, feeding port" etc., to achieve the drying work.

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] This leather drying device utilizes a feeding assembly and a feeding port to achieve the drying process. During use, the device uses infeed rollers and discharge rollers to fix the leather. However, the distance between the two rollers cannot be adjusted, making it impossible to fix leather of different thicknesses. Furthermore, it does not provide a buffer adjustment during fixing, which can easily cause damage to the leather. In addition, the drying chamber is enclosed, making it inconvenient to place the leather on the discharge roller, which affects the drying operation and effect. Therefore, this device needs to be improved. Utility Model Content

[0006] The purpose of this invention is to provide a leather drying device for leather production, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a leather drying device for leather production, comprising a drying device body, a drying mechanism provided on the top of the drying device body, a support frame provided on the left side of the drying mechanism, an auxiliary roller rotatably connected to the inner side of the support frame, and a squeezing mechanism provided on the top left side of the drying device body.

[0008] The drying mechanism includes a drying component and an air supply component. The drying component is located on the top of the drying device body, and the air supply component is located on the rear side of the drying component.

[0009] The drying assembly includes a drying chamber, which is fixedly connected to the top of the drying device body. The left side of the drying chamber is fixedly connected to the right side of the support frame. A protective door is rotatably connected to the front of the drying chamber. A first servo motor is fixedly connected to the front of the drying chamber. A first rotating rod is fixedly connected to the rear of the first servo motor. A first transmission roller is fixedly connected to the periphery of the first rotating rod. A first sprocket is fixedly connected to the periphery of the first rotating rod. A chain meshes with the periphery of the first sprocket. A second sprocket meshes with the inner side of the chain. A second rotating rod is fixedly connected inside the second sprocket. A second transmission roller is fixedly connected to the periphery of the second rotating rod. A cylinder is fixedly connected to the top of the drying chamber. A fixed plate is fixedly connected to the bottom of the cylinder. A fixed rod is slidably connected inside the fixed plate. A concave frame is fixedly connected to the bottom of the fixed rod. A pressing roller is rotatably connected to the inner side of the concave frame. A spring is sleeved around the periphery of the fixed rod.

[0010] Preferably, the first rotating rod and the second rotating rod are rotatably connected inside the drying chamber, the top of the spring is fixedly connected to the bottom of the fixed plate, the bottom of the spring is fixedly connected to the top of the concave frame, and a collection groove is provided on the top of the drying device body, and the collection groove is rectangular, so as to facilitate the cushioning effect on the pressing roller under the action of the spring.

[0011] Preferably, the fixing rod, spring, concave frame and pressing roller are provided in two sets. The two sets of fixing rod, spring, concave frame and pressing roller are symmetrically distributed on the left and right sides of the bottom of the fixing plate, and the two sets of pressing roller are respectively distributed on the top of the first transmission roller and the second transmission roller. By providing two sets, the leather can be further pressed under the joint action of the first transmission roller and the second transmission roller.

[0012] Preferably, the air supply assembly includes a protective box, which is fixedly connected to the rear side of the drying box. A mounting frame is fixedly connected inside the protective box, and a fan is fixedly connected inside the mounting frame. A connecting frame is fixedly connected to the front side of the mounting frame, and a heating tube is fixedly connected inside the connecting frame. An asbestos mesh is fixedly connected to the front side of the protective box.

[0013] Preferably, six fans are provided, and the six fans are distributed inside the mounting frame, which facilitates the improvement of air supply efficiency and drying quality by setting up six fans.

[0014] Preferably, the extrusion mechanism includes a second servo motor, which is fixedly connected to the left side of the drying device body. A threaded rod is fixedly connected to the right side of the second servo motor, and the right side of the threaded rod is rotatably connected to the drying device body. A movable frame is threadedly connected to the periphery of the threaded rod. A third servo motor is fixedly connected to the front side of the movable frame. A rotating shaft is fixedly connected to the rear side of the third servo motor. The rear side of the rotating shaft is rotatably connected to the inside of the movable frame. An extrusion roller is fixedly connected to the periphery of the rotating shaft.

[0015] Preferably, the movable frame is slidably connected to the top of the drying device body, the squeezing roller and the auxiliary roller are the same size, and the squeezing roller is located to the left of the auxiliary roller, so as to facilitate the initial pressing and dehydration of the leather under the action of the squeezing roller and the auxiliary roller.

[0016] Compared with the prior art, this utility model provides a leather drying device for leather production, which has the following beneficial effects:

[0017] 1. This leather drying device for leather production, through its drying mechanism, enables the first servo motor to drive the first rotating rod and the first transmission roller to rotate when the leather production requires drying and initial dehydration. Through the cooperation of the chain and sprocket, the second rotating rod and the second transmission roller rotate synchronously, enabling continuous conveying of leather. The cylinder can adjust the distance between the pressing roller and the transmission roller, further squeezing out the residual moisture inside the leather under the combined action of the pressing roller, the first transmission roller, and the second transmission roller. Two sets of fixing rods, springs, concave frames, and pressing rollers are symmetrically arranged at the bottom of the fixing plate, located on top of the first and second transmission rollers respectively. The spring design allows the pressing roller to automatically adjust the pressure according to the thickness of the leather, ensuring that the leather is stably attached to the transmission roller during conveying and squeezing, while avoiding damage to the leather due to excessive pressure, thus improving the drying effect. The six fans inside the mounting frame can blow air into the drying chamber from the rear, enhancing the airflow inside the drying chamber, and the heating tube can heat the conveyed air to become warm air, improving drying efficiency.

[0018] 2. This leather drying device for leather production, through a set extrusion mechanism, first brings the bottom of the leather into contact with the outer periphery of the extrusion roller before the leather needs to be dried. Then, the leather passes through the bottom of the auxiliary roller and enters the drying chamber. At the same time, the top of the leather comes into contact with the outer periphery of the auxiliary roller. Under the action of the second servo motor and the threaded rod, the moving frame and the extrusion roller are moved. The distance between the extrusion roller and the auxiliary roller is adjusted to extrude the leather. The third servo motor drives the rotating shaft and the extrusion roller to rotate, which moves the leather and extrudes and dehydrates it, reducing the moisture content in the leather. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the drying mechanism.

[0022] Figure 3 This is a schematic diagram of the drying component structure;

[0023] Figure 4 This is a schematic diagram of the internal structure of the drying oven;

[0024] Figure 5 This is a schematic diagram of the bottom structure of the cylinder;

[0025] Figure 6 This is a schematic diagram of the air supply component structure;

[0026] Figure 7 This is a schematic diagram of the extrusion mechanism.

[0027] In the diagram: 1. Drying device body; 2. Drying mechanism; 3. Support frame; 4. Extrusion mechanism; 5. Auxiliary roller; 21. Drying assembly; 22. Air supply assembly; 211. Drying chamber; 212. First servo motor; 213. Protective door; 214. Cylinder; 215. First rotating rod; 216. First transmission roller; 217. First sprocket; 218. Chain; 219. Second sprocket; 2191. Second transmission roller; 219 2. Second rotating rod; 2193. Fixed plate; 2194. Fixed rod; 2195. Spring; 2196. Concave frame; 2197. Pressing roller; 221. Protective box; 222. Mounting frame; 223. Fan; 224. Heating tube; 225. Connecting frame; 226. Asbestos mesh; 41. Second servo motor; 42. Threaded rod; 43. Moving frame; 44. Third servo motor; 45. Rotating shaft; 46. Squeezing roller. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0030] This utility model provides the following technical solution:

[0031] Example 1

[0032] Please see Figure 1-7 This utility model provides a technical solution: a leather drying device for leather production, including a drying device body 1, a drying mechanism 2 is provided on the top of the drying device body 1, a support frame 3 is provided on the left side of the drying mechanism 2, an auxiliary roller 5 is rotatably connected to the inner side of the support frame 3, and a squeezing mechanism 4 is provided on the top left side of the drying device body 1.

[0033] The drying mechanism 2 includes a drying component 21 and an air supply component 22. The drying component 21 is located on the top of the drying device body 1, and the air supply component 22 is located on the rear side of the drying component 21.

[0034] The drying assembly 21 includes a drying chamber 211, which is fixedly connected to the top of the drying device body 1. The left side of the drying chamber 211 is fixedly connected to the right side of the support frame 3. A protective door 213 is rotatably connected to the front of the drying chamber 211. A first servo motor 212 is fixedly connected to the front of the drying chamber 211. A first rotating rod 215 is fixedly connected to the rear of the first servo motor 212. A first transmission roller 216 is fixedly connected to the periphery of the first rotating rod 215. A first sprocket 217 is fixedly connected to the periphery of the first rotating rod 215. A chain 218 meshes with the periphery of the first sprocket 217. A second sprocket 219 is engaged on the inner side of strip 218. A second rotating rod 2192 is fixedly connected inside the second sprocket 219. A second transmission roller 2191 is fixedly connected to the outer side of the second rotating rod 2192. A cylinder 214 is fixedly connected to the top of the drying box 211. A fixed plate 2193 is fixedly connected to the bottom of the cylinder 214. A fixed rod 2194 is slidably connected inside the fixed plate 2193. A concave frame 2196 is fixedly connected to the bottom of the fixed rod 2194. A pressing roller 2197 is rotatably connected to the inner side of the concave frame 2196. A spring 2195 is sleeved around the outer side of the fixed rod 2194.

[0035] The first rotating rod 215 and the second rotating rod 2192 are rotatably connected to the inside of the drying chamber 211. The top of the spring 2195 is fixedly connected to the bottom of the fixed plate 2193, and the bottom of the spring 2195 is fixedly connected to the top of the concave frame 2196. A collection groove is provided on the top of the drying device body 1, and the collection groove is rectangular, which facilitates the cushioning effect on the pressing roller 2197 under the action of the spring 2195. Two sets of fixed rods 2194, springs 2195, concave frames 2196 and pressing rollers 2197 are provided. The two sets of fixed rods 2194, springs 2195, concave frames 2196 and pressing rollers 2197 are symmetrically distributed on the left and right sides of the bottom of the fixed plate 2193, and the two sets of pressing rollers 2197 are respectively distributed on the top of the first transmission roller 216 and the second transmission roller 2191. By setting two sets, the leather can be further pressed under the combined action of the first transmission roller 216 and the second transmission roller 2191.

[0036] Please see Figure 1-7 The present invention provides a technical solution: the air supply component 22 includes a protective box 221, the protective box 221 is fixedly connected to the rear side of the drying box 211, the protective box 221 is fixedly connected to a mounting bracket 222, the mounting bracket 222 is fixedly connected to a fan 223, the mounting bracket 222 is fixedly connected to a connecting bracket 225, the connecting bracket 225 is fixedly connected to a heating tube 224, and the protective box 221 is fixedly connected to an asbestos mesh 226 on the front side.

[0037] There are six fans 223, which are distributed inside the mounting bracket 222. This arrangement of six fans 223 improves the efficiency of air delivery and the drying quality.

[0038] Example 2

[0039] Please see Figure 1-7 Furthermore, based on Embodiment 1, the extrusion mechanism 4 further includes a second servo motor 41, which is fixedly connected to the left side of the drying device body 1. A threaded rod 42 is fixedly connected to the right side of the second servo motor 41, and the right side of the threaded rod 42 is rotatably connected to the inside of the drying device body 1. A movable frame 43 is threadedly connected to the outer periphery of the threaded rod 42. A third servo motor 44 is fixedly connected to the front side of the movable frame 43, and a rotating shaft 45 is fixedly connected to the rear side of the third servo motor 44. The rear side of the rotating shaft 45 is rotatably connected to the inside of the movable frame 43. An extrusion roller 46 is fixedly connected to the outer periphery of the rotating shaft 45. The movable frame 43 is slidably connected to the top of the drying device body 1. The extrusion roller 46 and the auxiliary roller 5 are the same size, and the extrusion roller 46 is located to the left of the auxiliary roller 5, which facilitates the initial pressing and dehydration of the leather under the action of the extrusion roller 46 and the auxiliary roller 5.

[0040] In actual operation, when this device is used, and the leather production requires drying, the leather is first conveyed by external equipment so that the bottom of the leather contacts the outer periphery of the extrusion roller 46 and passes through the bottom of the auxiliary roller 5 into the drying chamber 211. The protective door 213 is opened so that the leather is on top of the first transmission roller 216 and the second transmission roller 2191 and passes through the right side of the drying chamber 211. When the placement is complete, the protective door 213 is closed so that the top of the leather contacts the outer periphery of the auxiliary roller 5. Under the action of the second servo motor 41 and the threaded rod 42, the moving frame 43 and the extrusion roller 46 are moved. The distance between the extrusion roller 46 and the auxiliary roller 5 is adjusted to extrude the leather. The third servo motor 44 drives the rotating shaft 45 and the extrusion roller 46 to rotate, moving the leather. Under the action of friction, the auxiliary roller 5 and the extrusion roller 46 rotate in opposite directions to extrude the leather and dehydrate it, reducing the moisture content in the leather and reducing the energy consumption of subsequent drying. The extruded water will fall into the collection tank for collection.

[0041] When the leather, after initial dehydration, is placed in the drying chamber 211, the first servo motor 212 drives the first rotating rod 215 and the first transmission roller 216 to rotate. Through the cooperation of the chain 218 with the first sprocket 217 and the second sprocket 219, the second rotating rod 2192 and the second transmission roller 2191 rotate synchronously, which can continuously convey the leather. The cylinder 214 can adjust the distance between the pressing roller 2197 and the transmission roller. Furthermore, under the combined action of the pressing roller 2197, the first transmission roller 216 and the second transmission roller 2191, the residual moisture inside the leather is squeezed. Under the action of friction, the rotation direction of the pressing roller 2197 is opposite to the rotation direction of the first transmission roller 216 and the second transmission roller 2191, thereby ensuring that the leather moves to the right.

[0042] Two sets of fixing rods 2194, springs 2195, concave frames 2196, and pressing rollers 2197 are symmetrically arranged at the bottom of the fixing plate 2193, located on the top of the first transmission roller 216 and the second transmission roller 2191, respectively. The design of the springs 2195 allows the pressing rollers 2197 to automatically adjust the pressure according to the thickness of the leather, ensuring that the leather is stably attached to the transmission rollers during conveying and squeezing, while avoiding damage to the leather due to excessive pressure, thus improving the drying effect. During the squeezing process, the heating tubes 224 and fans 223 are powered by external power supply equipment. The six fans 223 inside the mounting frame 222 can blow air into the drying chamber 211 from the rear, enhancing the airflow inside the drying chamber 211. The heating tubes 224 can heat the conveyed air to become warm air, improving the drying efficiency. At the same time, the asbestos net 226 can not only ensure that the hot air is evenly delivered into the drying chamber 211, but also play a certain role in heat insulation, avoiding damage to the leather.

[0043] In this application, the first servo motor 212, the second servo motor 41, the third servo motor 44, the cylinder 214, the fan 223, and the heating tube 224 can be integrated into the same PLC control system to ensure coordinated operation between the devices.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A leather drying apparatus for leather production, comprising a drying apparatus body (1), characterized in that: The drying device body (1) is provided with a drying mechanism (2) on the top, a support frame (3) is provided on the left side of the drying mechanism (2), an auxiliary roller (5) is rotatably connected to the inner side of the support frame (3), and a squeezing mechanism (4) is provided on the top left side of the drying device body (1). The drying mechanism (2) includes a drying component (21) and an air supply component (22). The drying component (21) is located on the top of the drying device body (1), and the air supply component (22) is located on the rear side of the drying component (21). The drying assembly (21) includes a drying box (211), which is fixedly connected to the top of the drying device body (1). The left side of the drying box (211) is fixedly connected to the right side of the support frame (3). A protective door (213) is rotatably connected to the front side of the drying box (211). A first servo motor (212) is fixedly connected to the front side of the drying box (211). A first rotating rod (215) is fixedly connected to the rear side of the first servo motor (212). A first transmission roller (216) is fixedly connected to the periphery of the first rotating rod (215). A first sprocket (217) is fixedly connected to the periphery of the first rotating rod (215). A chain (218) is meshed around the periphery of the first sprocket (217). A second sprocket (219) is meshed inside the chain (218). A second rotating rod (2192) is fixedly connected inside the second sprocket (219). A second transmission roller (2191) is fixedly connected to the outer periphery of the second rotating rod (2192). A cylinder (214) is fixedly connected to the top of the drying box (211). A fixing plate (2193) is fixedly connected to the bottom of the cylinder (214). A fixing rod (2194) is slidably connected inside the fixing plate (2193). A concave frame (2196) is fixedly connected to the bottom of the fixing rod (2194). A pressing roller (2197) is rotatably connected to the inner side of the concave frame (2196). A spring (2195) is sleeved around the fixing rod (2194).

2. The leather drying apparatus for leather production according to claim 1, characterized in that: The first rotating rod (215) and the second rotating rod (2192) are rotatably connected to the inside of the drying box (211). The top of the spring (2195) is fixedly connected to the bottom of the fixing plate (2193), and the bottom of the spring (2195) is fixedly connected to the top of the concave frame (2196). The top of the drying device body (1) is provided with a collection groove, and the collection groove is rectangular.

3. The leather drying apparatus for leather production according to claim 1, characterized in that: The fixing rod (2194), spring (2195), concave frame (2196) and pressing roller (2197) are provided in two sets. The two sets of fixing rod (2194), spring (2195), concave frame (2196) and pressing roller (2197) are symmetrically distributed on the left and right sides of the bottom of the fixing plate (2193), and the two sets of pressing roller (2197) are respectively distributed on the top of the first transmission roller (216) and the second transmission roller (2191).

4. A leather drying apparatus for leather production according to claim 1, characterized in that: The air supply assembly (22) includes a protective box (221), which is fixedly connected to the rear side of the drying box (211). A mounting bracket (222) is fixedly connected inside the protective box (221). A fan (223) is fixedly connected inside the mounting bracket (222). A connecting bracket (225) is fixedly connected to the front side of the mounting bracket (222). A heating tube (224) is fixedly connected inside the connecting bracket (225). An asbestos mesh (226) is fixedly connected to the front side of the protective box (221).

5. A leather drying apparatus for leather production according to claim 4, characterized in that: There are six fans (223), which are distributed inside the mounting bracket (222).

6. A leather drying apparatus for leather production according to claim 1, characterized in that: The extrusion mechanism (4) includes a second servo motor (41), which is fixedly connected to the left side of the drying device body (1). A threaded rod (42) is fixedly connected to the right side of the second servo motor (41). The right side of the threaded rod (42) is rotatably connected to the inside of the drying device body (1). A movable frame (43) is threadedly connected to the outer periphery of the threaded rod (42). A third servo motor (44) is fixedly connected to the front side of the movable frame (43). A rotating shaft (45) is fixedly connected to the rear side of the third servo motor (44). The rear side of the rotating shaft (45) is rotatably connected to the inside of the movable frame (43). An extrusion roller (46) is fixedly connected to the outer periphery of the rotating shaft (45).

7. A leather drying apparatus for leather production according to claim 6, characterized in that: The movable frame (43) is slidably connected to the top of the drying device body (1). The extrusion roller (46) and the auxiliary roller (5) are the same size, and the extrusion roller (46) is located to the left of the auxiliary roller (5).

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