Multi-directional circulating hot air leather drying device

The design of the leather support frame driven by multi-directional circulating hot air and servo motor solves the problem of low drying efficiency for large areas of leather, achieving uniform drying and reducing damage.

CN224394895UActive Publication Date: 2026-06-23SHANDONG JUNCHENG LEATHER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG JUNCHENG LEATHER CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing leather drying equipment has low drying efficiency when processing large areas of leather in a fixed state, and water easily accumulates in some areas, leading to damage to the leather.

Method used

The leather support frame, which adopts a multi-directional circulating hot air design and is driven by a servo motor, supports the leather with clamping rollers and causes it to shake slightly. At the same time, multiple hot air ducts are used to deliver air to evaporate moisture, and adjustable air guide vanes are used to adjust the direction of the hot air.

Benefits of technology

It improves leather drying efficiency, reduces the risk of leather sticking and damage, ensures uniform drying, and is suitable for leather of different sizes and shapes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi -way circulation hot -blast leather drying device, and the leather support still includes the collecting hopper, and the bottom surface middle part of collecting hopper is fixed and has the drain pipe of through connection, and the periphery of collecting hopper still is fixed and has the vertical rod of through -going connection, and the upper end inner wall of the vertical rod of same column is slidably connected with the lifting frame, and the inner wall upper end and lower end of each lifting frame are rotatably connected with the clamping roller, and the outside of each clamping roller is all wrapped with the protective sleeve of connection, and the outer wall one end of lifting frame is fixedly connected with the lifting shaft, and the other end of lifting shaft is connected with the vertical rod through -going, and the outside of each clamping roller is all fixed with the protective sleeve of smooth surface aluminum alloy material, and then avoid the adhesion of leather with the clamping roller surface in the drying process, and through servo motor can drive the support roller of both sides to move respectively to the opposite linear direction, and then drive leather whole slight shaking, help to break the water film on the surface of leather, make the moisture more easily evaporate from the leather interior to the air.
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Description

Technical Field

[0001] This utility model relates to the field of leather processing technology, specifically to a multi-directional circulating hot air leather drying device. Background Technology

[0002] Leather drying is a process of removing moisture from leather by controlling temperature, humidity, and airflow. It is necessary to ensure uniform drying to avoid damage to the leather. Modern drying equipment often uses multi-directional circulating hot air and intelligent control technology to improve efficiency and quality. The moisture content of the leather after drying must be controlled within a reasonable range.

[0003] In existing technologies, leather is typically supported by fixed crossbars during drying, preventing it from moving. When the leather area is large, the drying efficiency is low and water accumulation is likely to occur in certain areas. To address these issues, a multi-directional circulating hot air leather drying device is proposed. Utility Model Content

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A multi-directional circulating hot air leather drying device includes a drying chamber, the interior of which is provided with a leather support, the leather support including a servo motor;

[0006] The leather support also includes a collection hopper, a drain pipe is fixed and connected through the center of the bottom surface of the collection hopper, and uprights are fixed and connected through the perimeter of the collection hopper. A lifting frame is slidably connected to the upper inner wall of the uprights in the same row.

[0007] Each of the lifting frames has a clamping roller rotatably connected to the upper and lower ends of its inner wall, and a protective sleeve is wrapped around the outer side of each clamping roller. A lifting shaft is fixedly connected to one end of the outer wall of the lifting frame, and the other end of the lifting shaft is connected through the upright.

[0008] As a further embodiment of this utility model: the output shaft of the servo motor is fixedly connected to a turntable, and the other edge of the turntable is fixedly connected to a push shaft two. The push shaft two is connected through a swing rod, and the middle part of the swing rod is provided with an extrusion groove one. The inner wall of the extrusion groove one is slidably connected to the push shaft two.

[0009] As a further embodiment of this utility model: a second extrusion groove is also provided on one side of the swing rod. Both the second extrusion groove and the first extrusion groove are aligned with the swing rod in the length direction. The inner side of the second extrusion groove is slidably connected to the lifting shaft.

[0010] As a further embodiment of this utility model: the drying oven includes a box body, the outer wall of the box body is hinged to a sealed door, the top surface of the box body is fixed and connected to a dehumidification pipe, and both sides of the outer wall of the box body are fixed and connected to a hot air pipe.

[0011] As a further embodiment of this utility model: the inner surface of the box is fixedly connected to each servo motor, the inner surface of the box is also fixedly connected to each upright, the bottom surface of the box passes through and is fixedly connected to the drain pipe, and the inner surface of the box is rotatably connected to the end of the swing rod away from the second extrusion groove.

[0012] As a further embodiment of this utility model: one end of the hot air pipe extending into the interior of the housing is fixed and connected to an air outlet. A groove is provided on one side of the surface of the air outlet. The groove extends along the height direction of the air outlet. A slider is slidably connected to the inner wall of the groove. Several push shafts are equidistantly arranged and fixed on the outer wall of the slider. A bolt is threadedly connected to the upper end of the slider. The bottom end of the bolt abuts against the top surface of the air outlet.

[0013] As a further embodiment of this utility model: a plurality of rotating rods are rotatably connected to the inner side of the air outlet, each of the rotating rods is equidistant along the height direction of the air outlet, and a guide vane is fixedly connected to the outer side of each of the rotating rods. One end of the rotating rod extends to the outer wall of the air outlet and is fixedly connected to a rotating frame, and the inner side of the rotating frame is slidably connected to a push shaft.

[0014] The beneficial effects of this utility model are:

[0015] (1) The present invention supports the leather on both sides by clamping rollers on both sides. Each clamping roller is fixed with a protective sleeve made of smooth aluminum alloy, thereby preventing the leather from sticking to the surface of the clamping rollers during the drying process. The servo motor can drive the support rollers on both sides to move in the opposite straight direction, thereby causing the leather to shake slightly, which helps to break the water film on the surface of the leather and make it easier for the moisture to evaporate from the inside of the leather into the air.

[0016] (2) When the clamping rollers cause the leather to shake slightly, the contact area and time between the leather and the suspension rod can be reduced, reducing the risk of adhesion. In addition, compared with static suspension, the shaking design can reduce the physical pressure on the leather due to being fixed in the same position for a long time, and prevent the leather from being damaged during the drying process.

[0017] (3) Hot air pipes are installed on both sides of the inside of the drying box, so that the moisture on the surface of the leather can be quickly evaporated by multiple air supply points and the moisture can be discharged. The air outlets at the ends of the hot air pipes are equipped with air guide vanes. By rotating the air guide vanes, the direction of hot air can be adjusted, which makes it convenient to dry leathers of different sizes and shapes. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a cross-sectional structural diagram of the box body in this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the collecting hopper in this utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the central support pole of this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the air outlet in this utility model;

[0023] Figure 5 This is a schematic diagram of the overall structure of the wind guide blade in this utility model.

[0024] In the diagram: 1. Drying oven; 101. Oven body; 102. Exhaust pipe; 103. Hot air pipe; 104. Air outlet; 105. Slide rail; 106. Rotating rod; 107. Air guide vane; 108. Rotating frame; 109. Sliding block; 110. Bolt; 111. Push shaft one; 2. Leather bracket; 201. Collection hopper; 202. Drain pipe; 203. Upright pole; 204. Lifting frame; 205. Clamping roller; 206. Lifting shaft; 207. Servo motor; 208. Turntable; 209. Push shaft two; 210. Swing rod; 211. Extrusion groove one; 212. Extrusion groove two. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-5As shown, a multi-directional circulating hot air leather drying device includes a drying chamber 1, inside which a leather support 2 is installed. The leather support 2 includes a servo motor 207. The leather support 2 also includes a collection hopper 201. A drain pipe 202 is fixedly and continuously connected to the center of the bottom surface of the collection hopper 201. Uprights 203 are fixedly and continuously connected around the perimeter of the collection hopper 201. Lifting frames 204 are slidably connected to the upper inner walls of the uprights 203 in the same row. Clamping rollers 205 are rotatably connected to the upper and lower ends of the inner walls of each lifting frame 204. Protective sleeves are wrapped around the outer sides of each clamping roller 205. A lifting shaft 206 is fixedly connected to one end of the outer wall of the lifting frame 204. The other end of the lifting shaft 206 is continuously connected to the uprights 203. Figure 3 As shown, the protective sleeve is made of smooth aluminum alloy material, thereby preventing the leather from sticking to the clamping roller 205;

[0027] The output shaft of the servo motor 207 is fixedly connected to a turntable 208. A second push shaft 209 is fixedly connected to the other edge of the turntable 208. A swing rod 210 is connected through the second push shaft 209. A compression groove 211 is formed in the middle of the swing rod 210. The inner wall of the compression groove 211 is slidably connected to the second push shaft 209. Figure 3 As shown, the two push shafts 209 are located at the highest and lowest points on the surface of the turntable 208, respectively;

[0028] A second extrusion groove 212 is also provided on one side of the swing rod 210. Both the second extrusion groove 212 and the first extrusion groove 211 are aligned with the swing rod 210 in the length direction. The inner side of the second extrusion groove 212 is slidably connected to the lifting shaft 206. Figure 1 , Figure 3 As shown, the pivot of the swing rod 210 connected to the housing 101 is far away from the extrusion groove 212;

[0029] The drying oven 1 includes a body 101, with a hinged airtight door connected to the outer wall of the body 101. A desiccant pipe 102 is fixedly and continuously connected to the top surface of the body 101, and hot air pipes 103 are fixedly and continuously connected to both sides of the outer wall of the body 101. Figure 1 As shown, the sealed door at the front of the box 101 facilitates the transfer of leather by the operator.

[0030] The inner surface of the housing 101 is fixedly connected to each servo motor 207, and the inner surface of the housing 101 is also fixedly connected to each upright 203. The bottom surface of the housing 101 passes through and is fixedly connected to the drain pipe 202. The inner surface of the housing 101 is rotatably connected to the end of the swing rod 210 away from the extrusion groove 212. Figure 1 As shown, the box 101 needs to be installed above the ground during use to facilitate drainage by the drain pipe 202;

[0031] A hot air duct 103 extends into the interior of the housing 101, with one end fixed and connected to an air outlet 104. A groove 105 is formed on one side of the surface of the air outlet 104, extending along its height. A slider 109 is slidably connected to the inner wall of the groove 105. Several push shafts 111 are equidistantly arranged and fixed to the outer wall of the slider 109. A bolt 110 is threaded onto the upper end of the slider 109, with the bottom end of the bolt 110 abutting against the top surface of the air outlet 104. Several rotating rods 106 are rotatably connected to the inner side of the air outlet 104, equidistantly arranged along its height. A guide vane 107 is fixedly connected to the outer side of each rotating rod 106. One end of each rotating rod 106 extends to the outer wall of the air outlet 104 and is fixedly connected to a rotating frame 108. The inner side of the rotating frame 108 is slidably connected to the push shafts 111. Figures 4-5 As shown, when the push shaft 111 moves downward, the rotating rod 106 drives the guide vane 107 to rotate counterclockwise.

[0032] The working principle of this utility model:

[0033] When the device is in use, the operator passes the leather through the inside of the lifting frame 204, and then the upper and lower clamping rollers 205 clamp the leather together. When the leather is suspended on the clamping rollers 205 on both sides, it is necessary to ensure that the middle of the leather hangs down naturally to avoid the leather being too tight. Then the airtight door is closed, and the external hot air fan is connected to the hot air pipe 103 through the pipe. The hot air can pass through the air outlet 104 and blow onto the leather under the guidance of the air guide vane 107. The evaporated moisture can be discharged through the external exhaust fan connected to the dehumidification pipe 102. During this period, the servo motors 207 on both sides can be started to drive the turntable 208 to rotate slowly. Then the push shaft 209 pushes the inside of the extrusion groove 211, which in turn drives the swing rod 210 to rotate back and forth. The extrusion groove 212 pushes the lifting shaft 206, so that the lifting frame 204 moves back and forth in a straight line along the top of the upright 203, and the leather undulates on both sides, realizing the slight shaking of the leather and accelerating the rupture of the water film on the surface of the leather.

[0034] Secondly, when adjusting the angle of the guide vane 107, the bolt 110 is rotated, so that the bolt 110 rises and falls relative to the slider 109. Then, the slider 109 rises and falls along the inside of the slide groove 105 under the action of gravity. The push shaft 111 pushes the inner side of the rotating frame 108, and drives the guide vane 107 to rotate through the rotating rod 106.

[0035] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A multi-directional circulating hot air leather drying device, comprising a drying chamber (1), wherein a leather support (2) is provided inside the drying chamber (1), and the leather support (2) includes a servo motor (207). Its features are, The leather bracket (2) also includes a collection hopper (201), a drain pipe (202) is fixed and connected through the middle of the bottom surface of the collection hopper (201), and uprights (203) are fixed and connected through the perimeter of the collection hopper (201). The upper inner wall of the uprights (203) in the same row is slidably connected to a lifting frame (204). Each of the lifting frames (204) has a clamping roller (205) rotatably connected to the upper and lower ends of its inner wall. Each of the clamping rollers (205) is wrapped with a protective sleeve on its outer side. One end of the outer wall of the lifting frame (204) is fixedly connected to a lifting shaft (206), and the other end of the lifting shaft (206) is connected through the upright (203).

2. The multi-directional circulating hot air leather drying device according to claim 1, characterized in that, The output shaft of the servo motor (207) is fixedly connected to a turntable (208), and the other edge of the turntable (208) is fixedly connected to a push shaft (209). The push shaft (209) is connected through a swing rod (210), and the middle part of the swing rod (210) is provided with an extrusion groove (211). The inner wall of the extrusion groove (211) is slidably connected to the push shaft (209).

3. The multi-directional circulating hot air leather drying device according to claim 2, characterized in that, The swing rod (210) is also provided with a second extrusion groove (212) on one side. The second extrusion groove (212) and the first extrusion groove (211) are both consistent with the swing rod (210) in the length direction. The inner side of the second extrusion groove (212) is slidably connected to the lifting shaft (206).

4. The multi-directional circulating hot air leather drying device according to claim 3, characterized in that, The drying oven (1) includes a box body (101), the outer wall of the box body (101) is hinged with a sealed door, the top surface of the box body (101) is fixed and connected to a dehumidification pipe (102), and both sides of the outer wall of the box body (101) are fixed and connected to a hot air pipe (103).

5. A multi-directional circulating hot air leather drying device according to claim 4, characterized in that, The inner surface of the housing (101) is fixedly connected to each servo motor (207), and the inner surface of the housing (101) is also fixedly connected to each upright (203). The bottom surface of the housing (101) is connected to the drain pipe (202) through and fixedly connected. The inner surface of the housing (101) is rotatably connected to the end of the swing rod (210) away from the second extrusion groove (212).

6. The multi-directional circulating hot air leather drying device according to claim 5, characterized in that, One end of the hot air duct (103) extending into the interior of the housing (101) is fixed and connected to an air outlet (104). A groove (105) is provided on one side of the surface of the air outlet (104). The groove (105) extends along the height direction of the air outlet (104). A slider (109) is slidably connected to the inner wall of the groove (105). Several push shafts (111) are fixed at equal intervals on the outer wall of the slider (109). A bolt (110) is threadedly connected to the upper end of the slider (109). The bottom end of the bolt (110) abuts against the top surface of the air outlet (104).

7. A multi-directional circulating hot air leather drying device according to claim 6, characterized in that, The air outlet (104) is rotatably connected to a number of rotating rods (106). Each of the rotating rods (106) is equidistant along the height direction of the air outlet (104), and each of the rotating rods (106) is fixedly connected to a guide vane (107). One end of the rotating rod (106) extends to the outer wall of the air outlet (104) and is fixedly connected to a rotating frame (108). The inner side of the rotating frame (108) is slidably connected to the push shaft (111).