A chromium-free preparation device for wear-resistant and scratch-resistant goat leather fabric

Abstract

The utility model relates to the field of leather fabric preparation technology, including temperature control mechanism, the right side of temperature control mechanism is provided with leather grinding mechanism, the right side of temperature control mechanism is provided with drying mechanism, the left side of drying mechanism is arranged with leather grinding mechanism, temperature control mechanism includes bottom plate, the top fixedly connected with conveyer belt of bottom plate, the top fixedly connected with tanning machine of bottom plate, the left side of tanning machine is combined with heater, the bottom of heater is fixedly connected with bottom plate, the front and back sides of heater are fixedly connected with heating pipe respectively, the outside of heating pipe is provided with temperature -sensitive tube, the front and back sides of tanning machine are fixedly connected with fin respectively, the fin is combined with temperature -sensitive tube. The utility model discloses through fin array enlargies heat exchange area, realizes the quick even temperature of tanning machine, and the adapter optimizes heat energy distribution, avoids local overheating or temperature uneven, solves the problem that leather shrinkage temperature is low.

Description

Technical Field

[0001] This utility model relates to the field of leather fabric preparation technology, specifically to a chromium-free preparation device for wear-resistant and scratch-resistant goat leather fabric. Background Technology

[0002] In traditional goat leather production processes, chrome tanning technology dominates. However, the chrome tanning process generates wastewater and sludge with high chromium content, increasing the environmental treatment costs for enterprises and posing a risk of excessive hexavalent chromium. With increasingly stringent environmental regulations, chrome-free tanning technology has become an industry trend. However, existing chrome-free tanning technologies suffer from problems such as low leather shrinkage temperature and insufficient physical and mechanical properties, making it difficult to meet the needs of high-end leather products. In addition, traditional leather fabrics have defects in abrasion and scratch resistance, making them prone to scratches and wear during use, affecting the product's lifespan and appearance.

[0003] Therefore, in response to the aforementioned problems of low shrinkage temperature, poor physical and mechanical properties, and defects in abrasion and scratch resistance of leather, a chromium-free preparation device for abrasion and scratch resistant goat leather fabric is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a chromium-free preparation device for wear-resistant and scratch-resistant goat leather fabric, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A chromium-free preparation device for wear-resistant and scratch-resistant goat leather fabric includes a temperature control mechanism, a leather grinding mechanism and a drying mechanism on the right side of the temperature control mechanism, and the left side of the drying mechanism and the leather grinding mechanism.

[0007] The temperature control mechanism includes a base plate, a conveyor belt fixedly connected to the top of the base plate, a tanning machine fixedly connected to the top of the base plate, a heater attached to the left side of the tanning machine, the bottom of the heater fixedly connected to the base plate, heating tubes fixedly connected to the front and rear sides of the heater, a temperature conducting pipe provided on the outside of the heating tubes, and heat sinks fixedly connected to the front and rear sides of the tanning machine, with the heat sinks attached to the temperature conducting pipes.

[0008] The leather grinding mechanism includes a support column, a protective shell is fixedly connected to the top of the support column, a hydraulic cylinder is fixedly connected to the top of the protective shell, a push rod is fixedly connected to the bottom of the hydraulic cylinder, a leather grinder is fixedly connected to the bottom of the push rod, and the bottom of the leather grinder is in contact with the top of the conveyor belt.

[0009] The base plate serves as the foundation platform, fixing the conveyor belt and tanning machine to ensure the overall stability of the equipment. The conveyor belt, driven by a motor, sequentially transports goat leather to the tanning machine, the leather grinding mechanism, and the drying mechanism. The tanning machine contains a chromium-free tanning agent and tans the leather through mechanical stirring. It also works in conjunction with a heater, which transfers heat energy to the temperature conduction pipe through heating tubes, and then evenly diffuses it to the tanning machine through heat sinks to achieve precise temperature control. The support columns and protective shells of the leather grinding mechanism fix the hydraulic cylinder, and the push rod drives the leather grinder to move vertically to polish the leather surface. The wind deflector of the drying mechanism covers the conveyor belt, and the interior uses a wind frame and a vacuum cleaner to achieve airflow circulation and dust removal.

[0010] Preferably, a plurality of heat sinks are fixedly connected to the outer side of the heat sink, and the plurality of heat sinks are all in contact with the temperature conducting tubes. The same adapter is fixedly connected to the outer side of the plurality of temperature conducting tubes, and the left side of the adapter is fixedly connected to the heating tube.

[0011] Multiple heat sinks are fixed to the outside of the heat sink plate. The heat sinks are in close contact with the surface of the heat conduction tube. The heat conduction tube gathers the heat energy of multiple heating tubes through the adapter to form a uniform heat conduction path. The adapter is made of metal and has a spiral guide groove inside to ensure that the heat energy is transferred to the heat sink without loss.

[0012] Preferably, a temperature detector is fixedly connected to the top of the tanning machine, a control panel is fixedly connected to the left side of the heater, the temperature detector is electrically connected to the control panel, the control panel is electrically connected to the heater, and a rubber sleeve is provided on the outer surface of the heating tube. Two rubber sleeves are provided, one of which is fixedly connected to the outer side of the heater, and the other of which is fixedly connected to the outer side of the adapter.

[0013] The temperature detector monitors the internal temperature of the tanning machine in real time. The data is transmitted to the control panel via electrical signals, and the heater power is automatically adjusted according to the set temperature threshold. The temperature of the heater can be controlled automatically or manually through the control panel. The heating tube is wrapped with a rubber sleeve at both ends, which absorbs the stress of thermal expansion and contraction through elastic deformation to prevent the tube from breaking.

[0014] Preferably, a slider is fixedly connected to the outside of the leather abrasive, and a slide rail is provided inside the protective shell, with the slide rail sliding in contact with the slider.

[0015] A slider is fixed on the outside of the leather grinder, and a slide rail is opened on the inner wall of the protective shell. When the hydraulic cylinder drives the push rod, the slider moves vertically along the slide rail, which limits the horizontal displacement of the leather grinder and enhances its stability.

[0016] Preferably, a limiting plate is fixedly connected to the bottom of the protective shell, the top of the limiting plate is adapted to the slider, and the outer surface of the limiting plate is fixedly connected to the support column.

[0017] The bottom limiting block fits into the slider, and when the leather polisher is lowered to a certain position, the slider will be stuck on the top of the limiting plate.

[0018] Preferably, the drying mechanism includes a wind deflector, the bottom of which is fixedly connected to the base plate, the interior of which is adapted to the conveyor belt, a wind frame fixedly connected to the front of the wind deflector, a vacuum cleaner fixedly connected inside the wind frame, and the back of the vacuum cleaner adapted to the interior of the wind deflector.

[0019] The windshield and conveyor belt form a channel, and a vacuum cleaner is embedded in the wind frame. The low air pressure generated when vacuuming inside the windshield quickly removes moisture from the leather surface and adsorbs particles on the leather surface.

[0020] Preferably, the top of the windshield has a drying opening, a drying plate is installed in the drying opening, and a fixing block is fixedly connected to the front and rear sides of the drying plate respectively. Two insert blocks are fixedly connected to the top of the windshield, and the insert blocks are inserted into the fixing blocks.

[0021] The position of the fixing block is fixed by the insert, so that the drying plate can be placed above the windshield and locked in place. The drying plate has a built-in silicone moisture-absorbing layer, which quickly absorbs moisture through the air pressure generated by the vacuum cleaner and the drying port, thus speeding up the drying process.

[0022] This utility model, by adopting the above technical solutions, has significant technical effects: The heat exchange area is expanded through a heat sink array, achieving rapid and uniform temperature in the tanning machine; the adapter optimizes heat distribution, avoiding localized overheating or uneven temperature; the temperature detector enables closed-loop control of the tanning temperature, ensuring the activity of chromium-free tanning agents; the rubber sleeve provides insulation and cushioning, improving equipment safety; the integrated temperature control, polishing, and drying functions enable continuous production of chromium-free tanned leather; the hydraulic cylinder controls the automatic polishing of the leather surface; the limit plate prevents excessive pressure from the polishing agent, damaging the leather; and the slide rail ensures uniform polishing pressure distribution, preventing striped defects on the leather surface. The combination of temperature control and mechanical polishing improves the leather's abrasion and scratch resistance; the vacuum cleaner creates negative pressure airflow within the baffle through the air frame, quickly adsorbing residual tanning agent particles, debris, and other impurities on the leather surface, preventing them from affecting subsequent processing or product appearance. Meanwhile, the drying plate absorbs moisture from the air through the drying port, reducing the humidity inside the enclosure and ensuring that the leather dries quickly in a dust-free environment, thus improving the quality of the finished product. The drying plate can be quickly installed and removed through the plug-in structure, and can be replaced independently without disassembling the windshield or other parts, reducing maintenance costs and operational difficulty. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2This is a disassembled structural diagram of the temperature control mechanism of this utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the leather grinding mechanism of this utility model;

[0026] Figure 4 This is a disassembled structural diagram of the drying mechanism of this utility model.

[0027] The components include: 1. Temperature control mechanism; 2. Grinding mechanism; 3. Drying mechanism; 101. Base plate; 102. Conveyor belt; 103. Tanning machine; 104. Heater; 105. Heat sink plate; 106. Heat sink fins; 107. Heating tube; 108. Adapter; 109. Temperature conductor tube; 110. Temperature detector; 111. Control panel; 112. Rubber sleeve; 201. Support column; 202. Protective shell; 203. Hydraulic cylinder; 204. Push rod; 205. Grinding tool; 206. Slider; 207. Limiting plate; 208. Applicator; 301. Wind shield; 302. Wind frame; 303. Vacuum cleaner; 304. Drying plate; 305. Fixing block; 306. Insert block. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 A device for preparing wear-resistant and scratch-resistant goat leather fabric without chromium includes a temperature control mechanism 1, a leather grinding mechanism 2 is arranged on the right side of the temperature control mechanism 1, a drying mechanism 3 is arranged on the right side of the temperature control mechanism 1, and the left side of the drying mechanism 3 is arranged with the leather grinding mechanism 2.

[0031] The temperature control mechanism 1 includes a base plate 101, a conveyor belt 102 fixedly connected to the top of the base plate 101, a tanning machine 103 fixedly connected to the top of the base plate 101, a heater 104 attached to the left side of the tanning machine 103, the bottom of the heater 104 fixedly connected to the base plate 101, heating tubes 107 fixedly connected to the front and rear sides of the heater 104 respectively, a heat conduction tube 109 provided on the outside of the heating tube 107, and heat sinks 106 fixedly connected to the front and rear sides of the tanning machine 103 respectively, with the heat sinks 106 attached to the heat conduction tubes 109.

[0032] Multiple heat sinks 106 are fixedly connected to the outer side of the heat sink 105. All heat sinks 106 are in contact with the temperature conducting tubes 109. The same adapter 108 is fixedly connected to the outer side of all temperature conducting tubes 109. The left side of the adapter 108 is fixedly connected to the heating tube 107.

[0033] A temperature detector 110 is fixedly connected to the top of the tanning machine 103, and a control panel 111 is fixedly connected to the left side of the heater 104. The temperature detector 110 is electrically connected to the control panel 111, and the control panel 111 is electrically connected to the heater 104. A rubber sleeve 112 is fitted on the outer surface of the heating tube 107. Two rubber sleeves 112 are provided. The outer side of one rubber sleeve 112 is fixedly connected to the outer side of the heater 104, and the outer side of the other rubber sleeve 112 is fixedly connected to the adapter 108.

[0034] Through the above technical solution, the heat exchange area is expanded by the heat sink array 106 to achieve rapid temperature uniformity of the tanning machine 103. The adapter 108 optimizes the heat energy distribution to avoid local overheating or uneven temperature. The temperature detector 110 realizes closed-loop control of the tanning temperature to ensure the activity of chromium-free tanning agents. The rubber sleeve 112 provides insulation and buffering to improve equipment safety. The integrated temperature control, polishing and drying functions enable continuous production of chromium-free tanned leather.

[0035] Example 2

[0036] Please see Figure 3 Furthermore, based on Embodiment 1, the following is obtained: the leather grinding mechanism 2 includes a support column 201, a protective shell 202 is fixedly connected to the top of the support column 201, a hydraulic cylinder 203 is fixedly connected to the top of the protective shell 202, a push rod 204 is fixedly connected to the bottom of the hydraulic cylinder 203, a leather grinder 205 is fixedly connected to the bottom of the push rod 204, and the bottom of the leather grinder 205 is in contact with the top of the conveyor belt 102.

[0037] A slider 206 is fixedly connected to the outside of the leather smoother 205, and a slide rail is provided inside the protective shell 202, which slides in contact with the slider 206.

[0038] The bottom of the protective shell 202 is fixedly connected to a limiting plate 207, the top of the limiting plate 207 is adapted to the slider 206, and the outer surface of the limiting plate 207 is fixedly connected to the support column 201.

[0039] Through the above technical solution, the hydraulic cylinder 203 controls the leather polisher 205 to automatically polish the outer surface of the leather. The limit plate 207 prevents the leather polisher 205 from pressing down too much and damaging the leather. At the same time, the slide rail can ensure that the polishing pressure is evenly distributed, avoiding striped defects on the leather surface. By combining temperature control with mechanical polishing, the wear resistance and scratch resistance of the leather are improved.

[0040] Example 3

[0041] Please see Figure 4Furthermore, based on Embodiment 1, the drying mechanism 3 includes a windshield 301, the bottom of which is fixedly connected to the base plate 101, the interior of which is adapted to the conveyor belt 102, a wind frame 302 fixedly connected to the front of which is windshield 301, a vacuum cleaner 303 fixedly connected to the interior of the wind frame 302, and the back of the vacuum cleaner 303 adapted to the interior of which is windshield 301.

[0042] Through the above technical solution, the vacuum cleaner 303 forms a negative pressure airflow in the windshield 301 through the wind frame 302, which quickly adsorbs impurities such as residual tanning agent particles and debris on the leather surface, so as to avoid them affecting subsequent processing or product appearance.

[0043] Example 4

[0044] Please see Figure 4 Furthermore, based on Example 1, the following was obtained:

[0045] The top of the windshield 301 has a drying opening, and a drying plate 304 is installed inside the drying opening. Fixing blocks 305 are fixedly connected to the front and rear sides of the drying plate 304 respectively. Two insert blocks 306 are fixedly connected to the top of the windshield 301, and the insert blocks 306 are inserted into the fixing blocks 305.

[0046] Through the above technical solution, the drying plate 304 absorbs moisture from the air through the drying port, reduces the humidity inside the cover, ensures that the leather dries quickly in a dust-free environment, improves the quality of the finished product, and enables quick disassembly and assembly of the drying plate 304 through the plug-in structure. The drying plate 304 can be replaced independently without disassembling the windshield 301 or other parts, reducing maintenance costs and operational difficulty.

[0047] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A device for preparing wear-resistant and scratch-resistant goat leather fabric without chromium, comprising a temperature control mechanism (1), characterized in that: A leather abrasion mechanism (2) is provided on the right side of the temperature control mechanism (1), and a drying mechanism (3) is provided on the right side of the temperature control mechanism (1). The left side of the drying mechanism (3) is provided with the leather abrasion mechanism (2). The temperature control mechanism (1) includes a base plate (101), a conveyor belt (102) is fixedly connected to the top of the base plate (101), a tanning machine (103) is fixedly connected to the top of the base plate (101), a heater (104) is attached to the left side of the tanning machine (103), the bottom of the heater (104) is fixedly connected to the base plate (101), heating tubes (107) are fixedly connected to the front and rear sides of the heater (104), a heat-conducting tube (109) is provided on the outside of the heating tube (107), and heat sinks (106) are fixedly connected to the front and rear sides of the tanning machine (103), with the heat sinks (106) attached to the heat-conducting tubes (109). The leather grinding mechanism (2) includes a support column (201), a protective shell (202) is fixedly connected to the top of the support column (201), a hydraulic cylinder (203) is fixedly connected to the top of the protective shell (202), a push rod (204) is fixedly connected to the bottom of the hydraulic cylinder (203), a leather grinder (205) is fixedly connected to the bottom of the push rod (204), and the bottom of the leather grinder (205) is in contact with the top of the conveyor belt (102).

2. The apparatus for preparing chromium-free abrasion-resistant and scratch-resistant goat leather fabric according to claim 1, characterized in that: Multiple heat sinks (106) are fixedly connected to the outside of the heat sink (105). The multiple heat sinks (106) are all attached to the temperature conducting tubes (109). The same adapter (108) is fixedly connected to the outside of the multiple temperature conducting tubes (109). The left side of the adapter (108) is fixedly connected to the heating tube (107).

3. The apparatus for preparing chromium-free abrasion-resistant and scratch-resistant goat leather fabric according to claim 1, characterized in that: A temperature detector (110) is fixedly connected to the top of the tanning machine (103), and a control panel (111) is fixedly connected to the left side of the heater (104). The temperature detector (110) is electrically connected to the control panel (111), and the control panel (111) is electrically connected to the heater (104). A rubber sleeve (112) is fitted on the outer surface of the heating tube (107). There are two rubber sleeves (112). The outer side of one rubber sleeve (112) is fixedly connected to the outer side of the heater (104), and the outer side of the other rubber sleeve (112) is fixedly connected to the adapter (108).

4. The apparatus for preparing chromium-free abrasion-resistant and scratch-resistant goat leather fabric according to claim 1, characterized in that: A slider (206) is fixedly connected to the outside of the leather polisher (205), and a slide rail is provided inside the protective shell (202), which slides in contact with the slider (206).

5. The apparatus for preparing chromium-free abrasion-resistant and scratch-resistant goat leather fabric according to claim 1, characterized in that: The bottom of the protective shell (202) is fixedly connected to a limiting plate (207), the top of the limiting plate (207) is adapted to the slider (206), and the outer surface of the limiting plate (207) is fixedly connected to the support column (201).

6. The apparatus for preparing chromium-free abrasion-resistant and scratch-resistant goat leather fabric according to claim 1, characterized in that: The drying mechanism (3) includes a wind shield (301), the bottom of which is fixedly connected to the base plate (101), the interior of which is adapted to the conveyor belt (102), a wind frame (302) is fixedly connected to the front of the wind shield (301), a vacuum cleaner (303) is fixedly connected to the interior of the wind frame (302), and the back of the vacuum cleaner (303) is adapted to the interior of the wind shield (301).

7. The apparatus for preparing chromium-free abrasion-resistant and scratch-resistant goat leather fabric according to claim 6, characterized in that: The top of the windshield (301) is provided with a drying port, and a drying plate (304) is installed in the drying port. Fixing blocks (305) are fixedly connected to the front and rear sides of the drying plate (304). Two inserts (306) are fixedly connected to the top of the windshield (301), and the inserts (306) are inserted into the fixing blocks (305).

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