Leather vacuum drying machine

Abstract

The utility model relates to the field of leather processing equipment, and discloses a leather vacuum drying machine, which comprises a vacuum drying box, a plurality of hanging rods, a plurality of conveying belts, a plurality of conveying belts and a plurality of conveying belts, the plurality of leveling mechanisms are mounted in the vacuum drying box and are used for stretching and leveling the leather in the drying process; the leveling mechanism comprises a mounting seat, a leveling mechanism and a driving mechanism, wherein the mounting seat is mounted in the vacuum drying box; and the stretching seat is mounted on one side of the mounting seat, can move on the mounting seat and is used for stretching the leather. According to the leather drying device, leather can be clamped and stretched through the leveling mechanism, the stability of the leather can be kept in the drying process, the leather can keep flat and wrinkle-free appearance after being dried, the hanging rods are arranged in the vacuum drying box, it can be guaranteed that the leather keeps proper intervals in the drying process, adhesion is prevented, and the drying efficiency is improved. Meanwhile, all parts of the leather are uniformly heated.

Description

Technical Field

[0001] The utility model relates to the field of leather processing equipment, in particular to a leather vacuum dryer. Background Art

[0002] The leather vacuum dryer is a device specially used for leather drying. It uses vacuum drying technology to quickly and evenly remove moisture from leather at a lower temperature. The leather to be dried is placed in a vacuum drying chamber and sealed. After the vacuum dryer is started, the air in the drying chamber is pumped out by a mechanical pump or a molecular pump to form a vacuum state. This process can remove air and moisture from the surface of the leather, creating favorable conditions for the subsequent drying process. In the vacuum state, the leather is heated by a heating device to evaporate the moisture in the leather. Since the boiling point of water is lowered in a vacuum state, rapid drying can be achieved at a lower temperature. The water vapor generated during the drying process is discharged from the drying chamber through the exhaust system to maintain the vacuum degree and drying effect in the chamber.

[0003] During the vacuum drying process, different parts of the leather may shrink or expand differently due to changes in temperature, pressure and humidity, resulting in deformation. Existing vacuum dryers cannot limit the position of the leather when drying it, nor are they convenient for stretching and shaping the leather. The leather may not meet the expected appearance and performance requirements after drying. Utility Model Content

[0004] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A leather vacuum dryer, comprising:

[0006] Vacuum drying oven,

[0007] A plurality of hanging rods installed in the vacuum drying box for hanging leather;

[0008] A plurality of flattening mechanisms, installed in the vacuum drying box, for stretching and flattening the leather during the drying process;

[0009] The leveling mechanism comprises:

[0010] A mounting seat, installed in the vacuum drying oven;

[0011] A stretching seat, installed on one side of the mounting seat, is configured to be movable on the mounting seat and is used for stretching the leather;

[0012] The two clamping plates are mounted on the stretching seat and are arranged so that the two clamping plates can approach each other and clamp the leather only when the stretching seat moves downward.

[0013] The leveling mechanism also includes:

[0014] A moving groove is provided on one side of the mounting seat, and the stretching seat is connected in the moving groove;

[0015] The control groove is arranged on one side of the stretching seat, and connecting grooves are arranged on both side walls of the control groove, and the clamping plate is connected in the connecting grooves.

[0016] The leveling mechanism also includes:

[0017] A first screw rod, one end of which is connected to the top wall of the moving groove, and the other end of which passes through the bottom wall of the moving groove and extends to the outside of the mounting seat and is connected to the stretching seat;

[0018] A power source is installed at the bottom of the mounting seat, and a power shaft of the power source is connected to the first screw rod to provide a driving force for the stretching seat to move.

[0019] The leveling mechanism also includes:

[0020] A second screw rod, one end of which is connected to the clamping plate and is used to adjust the spacing of the clamping plates;

[0021] A groove is formed on the side wall of the moving groove, and the other end of the second screw rod passes through the connecting groove and extends into the groove;

[0022] A gear is disposed in the groove and connected to the second lead screw;

[0023] The rack is connected to the side wall of the groove and is connected to the gear to drive the gear to rotate.

[0024] The vacuum drying oven comprises:

[0025] The two movable plates are respectively connected to the two side walls of the vacuum drying box, a plurality of hanging rods are arranged between the two movable plates, and the leveling mechanism is connected to the movable plates.

[0026] The projection shape of the stretching seat is U-shaped.

[0027] The projection shape of the two clamping plates is a rectangle.

[0028] The utility model provides a leather vacuum dryer. Compared with the prior art, it has the following beneficial effects:

[0029] 1. Driven by the power source, the stretching seat can drive the clamping plate to clamp and stretch the leather and maintain its stability during the drying process. After drying, the leather can maintain a flat, wrinkle-free appearance, and the performance is more stable, meeting the high requirements of the leather processing industry for leather appearance and performance.

[0030] 2. By setting up multiple hanging rods and leveling mechanisms in the vacuum drying box, it is possible to ensure that the leather maintains an appropriate distance during the drying process to prevent adhesion, while ensuring that all parts of the leather are heated evenly, effectively limiting the position movement of the leather during the drying process and improving the stability of the leather. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model.

[0032] Figure 2 The utility model is a schematic diagram of the assembly structure of the movable plate, the hanging rod and the leveling mechanism.

[0033] Figure 3 This is a schematic diagram of the assembly structure of the leveling mechanism proposed by the utility model.

[0034] Figure 4 This is a schematic diagram of the cross-sectional structure of the leveling mechanism proposed by the utility model.

[0035] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0036] The reference numerals in the figure are:

[0037] 1. Vacuum drying oven; 2. Moving plate; 3. Hanging rod; 4. Leveling mechanism; 401. Mounting seat; 402. Stretching seat; 403. Moving groove; 404. Control groove; 405. Clamping plate; 406. First screw rod; 407. Power source; 408. Connecting groove; 409. Groove; 410. Gear; 411. Second screw rod; 412. Rack. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Reference Figure 1-Figure 5 , a leather vacuum dryer, comprising:

[0040] A vacuum drying oven 1, a plurality of hanging rods 3, installed in the vacuum drying oven 1, the plurality of hanging rods 3 are used to hang the leather to be dried, allowing the leather to maintain an appropriate spacing during the drying process to prevent adhesion and ensure that all parts of the leather are evenly heated; a plurality of leveling mechanisms 4, installed in the vacuum drying oven 1, are used to stretch and level the leather during the drying process; the leveling mechanism 4 includes: a mounting seat 401, installed in the vacuum drying oven 1; a stretching seat 402, installed on one side of the mounting seat 401, and configured to be movable on the mounting seat 401 for stretching the leather; two clamping plates 405, installed on the stretching seat 402, and configured to allow the two clamping plates 405 to approach each other and clamp the leather only when the stretching seat 402 moves downward, the leveling mechanism 4 achieves the stretching of the leather through the drive of a power source 407, and the clamping plates 405 only clamp the leather when the stretching seat 402 moves downward, ensuring the stability of the leather during the stretching process.

[0041] The movable groove 403 is provided on one side of the mounting seat 401, and the stretching seat 402 is connected to the movable groove 403; the control groove 404 is provided on one side of the stretching seat 402, and the two side walls of the control groove 404 are provided with connecting grooves 408, and the clamping plate 405 is connected to the connecting groove 408; the first screw rod 406, one end of which is connected to the top wall of the movable groove 403, and the other end passes through the bottom wall of the movable groove 403 and extends to the outside of the mounting seat 401, and is connected to the stretching seat 402; the power source 407 is installed at the bottom of the mounting seat 401, and the power shaft of the power source 407 is connected to the first screw rod 406, which is used to provide a driving force for the movement of the stretching seat 402; the second screw rod 411, one end of which is connected to the clamping plate 405, which is used to adjust the spacing of the clamping plates 405; the groove 409 is provided on the side wall of the movable groove 403, and the other end of the second screw rod 411 passes through The connecting groove 408 extends into the groove 409; the gear 410 is arranged in the groove 409 and is connected to the second screw rod 411; the rack 412 is connected to the side wall of the groove 409 and is connected to the gear 410, and is used to drive the gear 410 to rotate. After the leather is hung on the hanging rod 3, its two ends are respectively placed on two stretching seats 402. In the process of drying the leather, the power source 407 drives the first screw rod 406 to rotate, and the first screw rod 406 drives the stretching seat 402 to move. While the stretching seat 402 moves downward, it drives the gear 410 to mesh and rotate on the rack 412, so that the gear 410 drives the second screw rod 411 to rotate, and the second screw rod 411 drives the clamping plate 405 to move. The two clamping plates 405 clamp the leather, and the leather is stretched by relying on the hanging rod 3 as a support point. The power source 407 adopts a servo motor, and can also adopt a stepping motor.

[0042] The vacuum drying oven 1 comprises: two movable plates 2, respectively connected to the two side walls of the vacuum drying oven 1, a plurality of hanging rods 3 are arranged between the two movable plates 2, and a leveling mechanism 4 is connected to the movable plates 2; the projection shape of the stretching seat 402 is U-shaped; the projection shape of the two clamping plates 405 is rectangular.

[0043] During use, in the vacuum drying box 1, the leather to be dried is hung on the hanging rods 3 through the multiple hanging rods 3 between the two moving plates 2, and the two ends of the leather are respectively placed on the stretching seats 402 of the two adjacent leveling mechanisms 4. The stretching seats 402 can move up and down along the moving grooves 403 on the mounting seat 401, and the clamping plate 405 is connected to the stretching seat 402 through the second screw rod 411, the gear 410 and the rack 412 mechanism to adjust the spacing. When the power source 407 is started, the power source 407 drives the first screw rod 406 to rotate, and the first screw rod 4 06 drives the stretching seat 402 to move. When the stretching seat 402 moves downward, it drives the gear 410 to mesh with the rack 412 and rotate, so that the gear 410 drives the second screw rod 411 to rotate, and the second screw rod 411 drives the clamping plate 405 to move. The two clamping plates 405 clamp the leather. The leather is stretched with the hanging rod 3 as a fulcrum during the downward movement of the stretching seat 402 to achieve a leveling effect. While the leather is stretched and leveled, the low-pressure environment in the vacuum drying box 1 causes the moisture in the leather to evaporate rapidly, thereby achieving rapid and uniform drying.

[0044] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0045] Driven by the power source 407, the stretching seat 402 can drive the clamping plate 405 to clamp and stretch the leather and maintain its stability during the drying process. After drying, the leather can maintain a flat, wrinkle-free appearance, and the performance is more stable, meeting the leather processing industry's high requirements for leather appearance and performance.

[0046] By arranging a plurality of hanging rods 3 and a leveling mechanism 4 in the vacuum drying box 1, it is possible to ensure that the leather maintains an appropriate spacing during the drying process to prevent adhesion, while ensuring that all parts of the leather are heated evenly, effectively limiting the position movement of the leather during the drying process and improving the stability of the leather.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A leather vacuum dryer, characterized in that: include: A vacuum drying oven (1), a plurality of hanging rods (3) installed in the vacuum drying oven (1) for hanging leather; a plurality of leveling mechanisms (4) installed in the vacuum drying oven (1) for stretching and leveling the leather during the drying process; The leveling mechanism (4) comprises: a mounting seat (401) mounted in the vacuum drying oven (1); a stretching seat (402) mounted on one side of the mounting seat (401) and configured to be movable on the mounting seat (401) for stretching the leather; two clamping plates (405) mounted on the stretching seat (402) and configured to move closer to each other and clamp the leather only when the stretching seat (402) moves downward; the leveling mechanism (4) further comprises: a moving groove (403) opened on one side of the mounting seat (401), the stretching seat (402) being connected to the moving groove (403); a control groove (404) opened on one side of the stretching seat (402), both side walls of the control groove (404) being provided with connecting grooves (408), the clamping plates (405) being connected to the connecting grooves (408); the leveling mechanism (4) further comprises: a first screw rod (406) having one end connected to the first screw rod (406) and a second end connected to the first screw rod (406). The first screw rod (406) is connected to the top wall of the movable groove (403), and the other end passes through the bottom wall of the movable groove (403) and extends to the outside of the mounting seat (401), and is connected to the stretching seat (402); a power source (407) is installed at the bottom of the mounting seat (401), and the power shaft of the power source (407) is connected to the first screw rod (406) to provide a driving force for the stretching seat (402) to move; the leveling mechanism (4) also includes: a second screw rod (411), one end of which is connected to the clamping plate (40 5) connection, used to adjust the spacing of the clamping plates (405); a groove (409), which is opened on the side wall of the movable groove (403); the other end of the second screw rod (411) passes through the connecting groove (408) and extends into the groove (409); a gear (410), which is arranged in the groove (409) and connected to the second screw rod (411); a rack (412), which is connected to the side wall of the groove (409) and connected to the gear (410), and is used to drive the gear (410) to rotate.

2. A leather vacuum dryer according to claim 1, characterized in that: The vacuum drying oven (1) comprises: two movable plates (2) respectively connected to two side walls of the vacuum drying oven (1); a plurality of hanging rods (3) arranged between the two movable plates (2); and the leveling mechanism (4) connected to the movable plates (2).

3. A leather vacuum dryer according to claim 1, characterized in that: The projection shape of the stretching seat (402) is U-shaped.

4. A leather vacuum dryer according to claim 1, characterized in that: The projection shape of the two clamping plates (405) is a rectangle.

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