Drying and dehumidifying box for nappa leather production
By introducing a combination design of a hot pressing section and a hot air section into the drying device, the problem of hot air being unable to penetrate deep into the leather fibers is solved, achieving a highly efficient dehumidification effect on the leather and improving the drying efficiency and stability of the device in Napa leather production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-10
- Publication Date
- 2026-03-27
AI Technical Summary
In existing leather drying equipment, hot air has difficulty penetrating deep into the leather fibers during use, resulting in ineffective removal of internal moisture and reducing the drying and dehumidification efficiency of Nappa leather production.
The design combines a hot pressing section and a hot air section. The hot pressing section uses pressurizing components and dampers to dehumidify the leather through hot pressing, while the hot air section circulates hot air to achieve uniform distribution of hot air and moisture removal within the drying chamber.
It significantly improves the drying and dehumidification efficiency of Nappa leather, avoids indentations and fiber breakage on the leather surface, and enhances the stability and dehumidification effect of the device.
Smart Images

Figure CN224047421U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to leather production technical field, especially, relate to a kind of for nappa leather production's drying and dehumidifying box. BACKGROUND
[0002] Nappa leather production is a kind of high-end tanning process, with high-quality head layer cowhide as raw material, is made after soaking, dehairing, tanning, dyeing, finishing etc. Process, the core feature is to adopt light finishing process, retains the natural texture and softness of leather, through fine polishing and polishing treatment, make product surface fine, touch smooth, more for high-grade leather goods, automotive interior etc. Process, drying and dehumidifying are the key procedures of nappa leather production, can remove the excess moisture in leather after tanning, prevent mildew, bacteria breeding, guarantee the stability of leather, while can accurately control the moisture content of leather, ensure that subsequent cutting, sewing etc. Process is carried out smoothly, avoid the deformation, cracking problem of finished product, maintain its soft and delicate unique quality.
[0003] But the existing leather drying device in the use process, more adopt the working mode of hot air box internal circulation, although can fast air dry leather surface moisture, but hot air is difficult to penetrate to leather fiber deep layer, lead to internal still remain a large amount of moisture cannot be effectively removed, reduce the drying and dehumidifying efficiency of nappa leather production. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of for nappa leather production's drying and dehumidifying box, by setting up hot-pressing part, solved the existing leather drying device in the use process, more adopt the working mode of hot air box internal circulation, although can fast air dry leather surface moisture, but hot air is difficult to penetrate to leather fiber deep layer, lead to internal still remain a large amount of moisture cannot be effectively removed, reduce the drying and dehumidifying efficiency of nappa leather production problem.
[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:
[0006] The utility model discloses a kind of drying and dehumidifying boxes for napapi leather production, including bottom plate and the drying box being set on the top of bottom plate, the feeding port for putting napapi leather is opened on the drying box, support is provided on the bottom plate, further include: hot-pressing part, the hot-pressing part is set on drying box;The hot-pressing part includes pressurizing assembly, the pressurizing assembly is installed on drying box;Connecting assembly, the connecting assembly is set on drying box;The pressurizing assembly includes the pressing plate being set in drying box, the inner wall of drying box and pressing plate are slidably connected, the inner wall of drying box is fixedly connected with support plate, and pressurizing piece is provided on the drying box;The connecting assembly includes two slide rods being set on drying box, the outer wall of two slide rods is extended to drying box, electric telescopic rod is provided on the drying box, the outer wall of electric telescopic rod is extended to drying box, the top of pressing plate is fixedly connected with several dampers for buffering electric telescopic rod pressure, the top of several dampers is fixedly connected with pressurizing plate, and drainage piece is provided on the drying box, the outer wall of two slide rods is slidably connected with drying box, the outer wall of electric telescopic rod is fixedly connected with drying box, the top of pressing plate is fixedly connected with two slide rods, the pressurizing piece includes pressurizing plate being slidably connected on the inner wall of drying box, the inner wall of drying box is fixedly connected with two flow guides, two flow guides are set on the bottom of support plate, and the side, away from support plate, of two flow guides is fixedly connected with the bottom inner wall of drying box;The outer wall of two slide rods penetrates pressurizing plate, the outer wall of two slide rods is slidably connected with pressurizing plate, the top of pressurizing plate is fixedly connected with electric telescopic rod, feeding port is used to take out napapi leather from drying box after dehumidification, several drainage openings are opened on support plate, and moisture in napapi leather is discharged through drainage opening, the outer wall of electric telescopic rod is fixedly connected with drying box, the top of pressing plate is fixedly connected with two slide rods, and the model of damper is small metal damping buffer.
[0007] Further, the hot air part comprises an air outlet assembly installed on the bottom plate, and a flow restraining assembly installed on the air outlet assembly; the air outlet assembly comprises a hot air box fixedly connected to the top of the bottom plate, and the bottom plate is provided with a mounting block, the hot air box is provided with an air inlet pipe in communication, the air inlet pipe is provided in communication with the drying box away from the hot air box, the drying box is provided with an air outlet pipe in communication for discharging moisture in the drying box, the outer wall of the air outlet pipe is fixedly connected with the mounting block, and the mounting block is provided with a pressing piece; the flow restraining assembly comprises two connecting rods arranged in the mounting block, a two-way threaded rod is penetrated through the mounting block, the outer wall of the two-way threaded rod is fixedly connected with a handle, the two-way threaded rod is provided with a hinged piece, the outer wall of the two-way threaded rod is rotatably connected with the mounting block, the hinged piece comprises two hinged blocks threadedly connected to the outer wall of the two-way threaded rod, two hinged plates are hingedly arranged on the two hinged blocks, and the sides, away from the two-way threaded rod, of the two hinged plates are hingedly connected with the pressing block; the hot air box is used for providing necessary heat, the air inlet pipe and the air outlet pipe form a hot air channel in the drying box, the hot air box is an electric heating constant temperature air blowing drying box, the working principle is that the electric heating element generates heat by being electrified, a hot air circulation is formed by a fan, and the heat is uniformly sent to the drying box through the air inlet pipe; the two hinged blocks are threadedly connected with the outer wall of the two-way threaded rod, the surface of the two-way threaded rod is plated with a corrosion-resistant coating, the pressing piece comprises two connecting rods fixedly connected to the bottom of the pressing block, the inner wall of the mounting block is fixedly connected with a connecting plate, and the outer walls of the two connecting rods are penetrated through the connecting plate; the outer walls of the two connecting rods are slidably connected with the connecting plate, and the outer wall of the pressing block is slidably connected with the air outlet pipe.
[0008] Further, the drainage piece comprises a drainage pipe provided in communication on the inner wall of the bottom of the drying box, and the drainage pipe is provided with a valve.
[0009] Further, the supporting piece comprises a plurality of supporting legs fixedly connected to the bottom plate for fixing the drying box, and the top of each supporting leg is fixedly connected with the drying box.
[0010] The utility model has the following beneficial effects:
[0011] 1. By setting up the hot pressing part, the electric telescopic rod pushes the pressing plate and the pressing plate to move, the nap leather on the supporting plate is hot pressed, the damper buffers the downward pressure of the electric telescopic rod, the water outlet on the supporting plate and the flow guide plate discharge the water in the nap leather from the drying box through the drain pipe and the valve, in the hot pressing process, the pressure applied by the pressing plate is used for efficiently pressing and removing the residual water in the leather, the dehumidification effect is further improved, meanwhile, the matched damper plays a flexible buffering role, can more effectively avoid the problems of leather surface indentation, fiber rupture and the like caused by instantaneous excessive pressure, thereby the drying and dehumidification efficiency of the nap leather is significantly improved.
[0012] 2、By setting hot air part, hot air of hot air box forms heat circulation in drying box through air inlet pipe and air outlet pipe, moisture in drying box is removed, one-way valve is formed by two-way threaded rod, abutting block and connecting plate in mounting block, cold air outside drying box is prevented from entering drying box through air outlet pipe, when air is exhausted, external airflow is prevented from entering box body, temperature in box is prevented from dropping suddenly, water drops are prevented from being formed in box, leather surface is prevented from adhering water vapor, and stability of the device during use is improved.
[0013] Of course, it is not necessary for any product implementing the present application to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0015] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0016] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the pressurizing assembly of the present application;
[0017] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the connecting assembly of the present application;
[0018] Figure 4 It is a schematic diagram of the overall structure of the drain pipe of the present application;
[0019] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the air outlet assembly of the present application;
[0020] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the flow suppressing assembly of the present application;
[0021] Figure 7 It is a schematic diagram of the position structure of the air outlet pipe and the abutting block of the present application.
[0022] In the drawings, the components represented by each number are listed as follows:
[0023] 111, bottom plate; 112, drying box; 113, feeding port; 114, supporting leg; 2, hot pressing part; 21, pressing assembly; 211, pressing plate; 212, supporting plate; 213, pressing plate; 214, flow guide plate; 22, connecting assembly; 221, sliding rod; 222, electric telescopic rod; 223, damper; 224, drain pipe; 225, valve; 3, hot air part; 31, air outlet assembly; 311, hot air box; 312, mounting block; 313, air inlet pipe; 314, air outlet pipe; 315, pressing block; 316, connecting plate; 32, flow suppression assembly; 321, connecting rod; 322, bidirectional threaded rod; 323, handle; 324, hinged block; 325, hinged plate. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0025] With reference to Figure 1 The present application is a drying and dehumidifying box for nappa leather production, which comprises a bottom plate 111 and a drying box 112 arranged on the top of the bottom plate 111. The drying box 112 is provided with a feeding port 113 for placing nappa leather. The bottom plate 111 is provided with a supporting member. The supporting member comprises a plurality of supporting legs 114 fixedly connected to the bottom plate 111 for fixing the drying box 112. The top of each supporting leg 114 is fixedly connected to the drying box 112.
[0026] With reference to Figure 1 , Figure 2 , Figure 3 With Figure 4, the hot pressing part 2 is arranged on the drying box 112; the hot pressing part 2 comprises a pressing assembly 21, the pressing assembly 21 is arranged on the drying box 112; a connecting assembly 22, the connecting assembly 22 is arranged on the drying box 112; the pressing assembly 21 comprises a pressing plate 211 arranged in the drying box 112, the inner wall of the drying box 112 is in sliding connection with the pressing plate 211, the inner wall of the drying box 112 is fixedly connected with a support plate 212, and the drying box 112 is provided with a pressing piece; the connecting assembly 22 comprises two slide rods 221 arranged on the drying box 112, the outer walls of the two slide rods 221 extend into the drying box 112, the drying box 112 is provided with an electric telescopic rod 222, the outer wall of the electric telescopic rod 222 extends into the drying box 112, the top of the pressing plate 211 is fixedly connected with a plurality of dampers 223 for buffering the downward pressure of the electric telescopic rod 222, the tops of the plurality of dampers 223 are fixedly connected with a pressing plate 213, the drying box 112 is provided with a drainage piece, the outer walls of the two slide rods 221 are in sliding connection with the drying box 112, the outer wall of the electric telescopic rod 222 is fixedly connected with the drying box 112, the top of the pressing plate 211 is fixedly connected with the two slide rods 221, the pressing piece comprises the pressing plate 213 which is in sliding connection with the inner wall of the drying box 112, the inner wall of the drying box 112 is fixedly connected with two flow guides 214, the two flow guides 214 are arranged at the bottom of the support plate 212 and are fixedly connected with the bottom inner wall of the drying box 112 away from the support plate 212; the outer walls of the two slide rods 221 penetrate through the pressing plate 213, the outer walls of the two slide rods 221 are in sliding connection with the pressing plate 213, the top of the pressing plate 213 is fixedly connected with the electric telescopic rod 222, and the drainage piece comprises a drainage pipe 224 which is communicated with the bottom inner wall of the drying box 112, and the drainage pipe 224 is provided with a valve 225; by arranging the hot pressing part 2, the electric telescopic rod 222 drives the pressing plate 213 and the pressing plate 211 to move, the Nappa leather on the support plate 212 is hot pressed, the dampers 223 buffer the downward pressure of the electric telescopic rod 222, the water outlet on the support plate 212 and the flow guides 214 discharge the water in the Nappa leather out of the drying box 112 through the drainage pipe 224 and the valve 225, in the hot pressing process, the pressure applied by the pressing plate 213 and the pressing plate 211 can efficiently press out the residual water in the leather, further improving the dehumidification effect, meanwhile, the flexible buffering effect of the matched dampers 223 can effectively avoid the problems of leather surface indentation and fiber rupture caused by excessive instantaneous pressure, thereby significantly improving the drying and dehumidification efficiency of the Nappa leather.
[0027] Referring to Figure 1 , Figure 4 , Figure 5 and Figure 6The hot air part 3 comprises an air outlet assembly 31 installed on the bottom plate 111, and a flow suppression assembly 32 installed on the air outlet assembly 31. The air outlet assembly 31 comprises a hot air box 311 fixedly connected to the top of the bottom plate 111, and the bottom plate 111 is provided with a mounting block 312. The hot air box 311 is provided with an air inlet pipe 313 in communication. The air inlet pipe 313 is in communication with the drying box 112 away from the hot air box 311. The drying box 112 is provided with an air outlet pipe 314 for discharging moisture in the drying box 112. The outer wall of the air outlet pipe 314 is fixedly connected with the mounting block 312, and the mounting block 312 is provided with a pressing piece. The flow suppression assembly 32 comprises two connecting rods 321 arranged in the mounting block 312. The mounting block 312 is provided with a bidirectional threaded rod 322. The outer wall of the bidirectional threaded rod 322 is fixedly connected with a handle 323. The bidirectional threaded rod 322 is provided with a hinged piece. The outer wall of the bidirectional threaded rod 322 is rotatably connected with the mounting block 312. The hinged piece comprises two hinged blocks 324 threadedly connected to the outer wall of the bidirectional threaded rod 322. Two hinged plates 325 are hingedly arranged on the two hinged blocks 324. The two hinged plates 325 are hingedly connected with the pressing block 315 away from the bidirectional threaded rod 322. The pressing piece comprises two connecting rods 321 fixedly connected to the bottom of the pressing block 315. The inner wall of the mounting block 312 is fixedly connected with a connecting plate 316. The outer wall of the two connecting rods 321 penetrates through the connecting plate 316. The outer wall of the two connecting rods 321 is slidably connected with the connecting plate 316. The outer wall of the pressing block 315 is slidably connected with the air outlet pipe 314. By arranging the hot air part 3, the hot air of the hot air box 311 forms a heat cycle in the drying box 112 through the air inlet pipe 313 and the air outlet pipe 314, so as to discharge the moisture in the drying box 112. The bidirectional threaded rod 322, the pressing block 315 and the connecting plate 316 form a one-way valve in the mounting block 312, so as to prevent the cold air outside the drying box 112 from entering the drying box 112 through the air outlet pipe 314. When the air is discharged, the external airflow enters the box, causing the temperature in the box to drop suddenly, forming water droplets in the box, causing the leather surface to adhere to the water vapor, and improving the stability of the device during use.
[0028] It should be noted that the control of the electric telescopic rod 222 in the present application can be realized by setting the program in the control panel and inputting the relevant parameters according to the requirements to realize automatic control. The setting of this control mode can be realized by the existing technology, such as PLC.
[0029] One specific application of the embodiment is that: in use, the electric telescopic rod 222 is started, the electric telescopic rod 222 pushes the pressing plate 213 and the pressing plate 211 to be close to the supporting plate 212, the nappa leather on the supporting plate 212 is hot-pressed, when hot-pressed, the slide rod 221 slides on the pressing plate 213 and the drying box 112, the damper 223 buffers the downward pressure of the electric telescopic rod 222, avoids that the downward pressure of the electric telescopic rod 222 is too large to cause damage of the pressing plate 211, water in the nappa leather enters the drain pipe 224 through the drain port and the flow guide plate 214 on the supporting plate 212, the valve 225 is opened, water is discharged from the drying box 112, when pressed downward, the hot air box 311 is started, hot air of the hot air box 311 enters the drying box 112 through the air inlet pipe 313, hot air flow is formed in the drying box 112, water vapor in the drying box 112 is discharged through the air outlet pipe 314, when exhaust, the knob 323 is rotated, the knob 323 drives the bidirectional screw rod 322 to rotate, when the knob 323 rotates, the two hinged blocks 324 are driven to move away from each other, the abutting block 315 is pulled through the hinged plate 325, the abutting block 315 moves away from the air outlet pipe 314, water vapor in the drying box 112 is discharged through the two exhaust ports on the connecting plate 316, and the dehumidification and drying work of the nappa leather production is completed.
[0030] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0031] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in the specification in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.
Claims
1. A drying and dehumidifying box for napapijri leather production, comprising a bottom plate (111) and a drying box (112) arranged on the top of the bottom plate (111), a feeding port (113) for placing napapijri leather is arranged on the drying box (112), and a supporting piece is arranged on the bottom plate (111), characterized in that, Also include: The hot pressing part (2) is arranged on the drying box (112); The hot pressing part (2) includes a pressing assembly (21) mounted on the drying box (112); and The connecting assembly (22) is arranged on the drying box (112); The pressing assembly (21) includes a pressing plate (211) arranged in the drying box (112), the inner wall of the drying box (112) is in sliding connection with the pressing plate (211), the inner wall of the drying box (112) is fixedly connected with a support plate (212), and the drying box (112) is provided with a pressing member; The connecting assembly (22) includes two slide rods (221) arranged on the drying box (112), the outer walls of the two slide rods (221) extend into the drying box (112), the drying box (112) is provided with an electric telescopic rod (222), the outer wall of the electric telescopic rod (222) extends into the drying box (112), the top of the pressing plate (211) is fixedly connected with a plurality of dampers (223) for buffering the downward pressure of the electric telescopic rod (222), the tops of the plurality of dampers (223) are fixedly connected with the pressing plate (213), the drying box (112) is provided with a drainage member, the outer walls of the two slide rods (221) are in sliding connection with the drying box (112), the outer wall of the electric telescopic rod (222) is fixedly connected with the drying box (112), the top of the pressing plate (211) is fixedly connected with the two slide rods (221), and the pressing member includes a pressing plate (213) slidingly connected to the inner wall of the drying box (112), the inner wall of the drying box (112) is fixedly connected with two flow guide plates (214), the two flow guide plates (214) are arranged at the bottom of the support plate (212), and the sides of the two flow guide plates (214) away from the support plate (212) are fixedly connected with the bottom inner wall of the drying box (112); Wherein, the outer walls of the two slide rods (221) penetrate through the pressing plate (213), the outer walls of the two slide rods (221) are in sliding connection with the pressing plate (213), and the top of the pressing plate (213) is fixedly connected with the electric telescopic rod (222).
2. A drying and dehumidifying box for nappa leather production according to claim 1, characterized in that, The hot air part (3) includes an air outlet assembly (31) mounted on the bottom plate (111); and The flow suppression assembly (32) is mounted on the air outlet assembly (31); The air outlet assembly (31) comprises a hot air box (311) fixedly connected to the top of the bottom plate (111), the bottom plate (111) is provided with a mounting block (312), the hot air box (311) is provided with an air inlet pipe (313) in communication, the side of the air inlet pipe (313) away from the hot air box (311) is provided in communication with a drying box (112), the drying box (112) is provided with an air outlet pipe (314) in communication for discharging moisture in the drying box (112), the outer wall of the air outlet pipe (314) is fixedly connected with the mounting block (312), the mounting block (312) is provided with a pressing piece; the flow suppressing assembly (32) comprises two connecting rods (321) arranged in the mounting block (312), the mounting block (312) is provided with a bidirectional threaded rod (322) penetrating therethrough, the outer wall of the bidirectional threaded rod (322) is fixedly connected with a handle (323), the bidirectional threaded rod (322) is provided with a hinged piece, the outer wall of the bidirectional threaded rod (322) is rotatably connected with the mounting block (312), the hinged piece comprises two hinged blocks (324) threadedly connected to the outer wall of the bidirectional threaded rod (322), two hinged plates (325) are hingedly arranged on the two hinged blocks (324), the side of the two hinged plates (325) away from the bidirectional threaded rod (322) is hingedly connected with the pressing block (315), the pressing piece comprises two connecting rods (321) fixedly connected to the bottom of the pressing block (315), the inner wall of the mounting block (312) is fixedly connected with a connecting plate (316), the outer wall of the two connecting rods (321) penetrates through the connecting plate (316); Wherein, the outer wall of the two connecting rods (321) is slidably connected with the connecting plate (316), the outer wall of the pressing block (315) is slidably connected with the air outlet pipe (314).
3. A drying and dehumidifying cabinet for nappa leather production according to claim 2, characterized in that, The drainage piece comprises a drainage pipe (224) arranged in communication on the inner wall of the bottom of the drying box (112), the drainage pipe (224) is provided with a valve (225).
4. A drying and dehumidifying box for nappa leather production according to claim 2, characterized in that, The supporting piece comprises a plurality of supporting legs (114) fixedly connected to the bottom plate (111) for fixing the drying box (112), the top of the plurality of supporting legs (114) is fixedly connected with the drying box (112).