Leather tightening and drying machine

Abstract

The utility model discloses a leather tightening drying machine which comprises a lower machine plate, guide plates are fixedly installed on the two sides of the upper surface of the lower machine plate, a threaded lead screw is rotatably installed in one guide plate through a bearing, a polished rod is fixedly installed in the other guide plate, the threaded lead screw is a positive and negative type screw rod, and the polished rod is connected with the threaded lead screw. First-stage stand columns are arranged on positive and negative threads of the threaded lead screw in a sleeving mode, the bottom ends of the two first-stage stand columns are in threaded connection with the threaded lead screw, two second-stage stand columns symmetrical to the first-stage stand columns are installed on the polished rod in a sliding mode, and rotating rollers are rotationally installed between the two opposite first-stage stand columns and the second-stage stand columns through bearings. According to the leather drying and tightening device, leather can be tightened when being dried, and the phenomenon that the leather retracts due to water loss during drying is avoided, so that wrinkles on the outer surface of the leather can be effectively avoided, and the surface ductility of the leather during drying processing is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to leather processing technical field, concretely is a kind of leather taut leather drying machine. BACKGROUND

[0002] Leather is the animal skin that has been denatured not easily putrefied by physical, chemical processing such as unhairing and tanning. Leather is made of natural protein fiber in three-dimensional space tight weave, and it has a special grain layer on the surface, with natural grain and luster, comfortable hand feeling;

[0003] In the leather processing process, the leather needs to be dried, and a hot air dryer needs to be used in the drying process. However, when the traditional hot air dryer is used to dry the leather, the leather is prone to shrinkage and wrinkles due to water loss, which affects the extensibility of the leather surface. At the same time, the shrunk leather may have a length reduction, which affects the final leather yield and the practicability. Therefore, the utility model provides a leather taut leather drying machine that can dry the leather tightly. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a leather taut leather drying machine to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a leather taut leather drying machine, comprising a lower machine plate, the upper surface of the lower machine plate is fixedly installed with guide plates on both sides, one of the guide plates is rotatably installed with a threaded lead screw inside through a bearing, the other guide plate is fixedly installed with a light rod inside, the threaded lead screw is a positive and negative screw rod, a primary column is sleeved on the positive and negative threads of the threaded lead screw, the bottom ends of the two primary columns are threadedly connected with the threaded lead screw, the light rod is slidably installed with two secondary columns symmetrically with the primary columns, two opposite primary columns and secondary columns are rotatably installed with rotating rollers through bearings, one of the primary columns is fixedly installed with a rotating motor on the outer wall through fixing bolts, the output shaft of the rotating motor is fixedly connected with one of the rotating rollers, and the upper surface of the lower machine plate is covered with a hot air cover in the middle.

[0006] Preferably, one end of the threaded lead screw is fixedly connected with the output shaft of a servo motor, and the servo motor is fixedly installed on the outer wall of the guide plate through bolts.

[0007] Preferably, two symmetrically distributed fan motors are fixedly installed on the top surface of the hot air cover through bolts, and the bottom end of the output shaft of the fan motor is fixedly installed with a hot air fan.

[0008] Preferably, a plurality of heating rods are uniformly distributed and fixedly installed below the hot fan, and the hot fan and the plurality of heating rods are jointly covered by an outer shroud.

[0009] Preferably, an air outlet plate is fixedly installed at the bottom end of the outer shroud.

[0010] Preferably, a plurality of strip-shaped air outlets are evenly distributed on the outer surface of the air outlet plate.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] The present application can effectively avoid wrinkles on the outer surface of the leather, improve the surface extensibility of the leather during drying processing, ensure the flatness of the leather surface, and effectively improve the hot air drying processing quality of the leather, thus having good effects.

[0013] Meanwhile, when the leather is being tautly dried, the leather is prevented from shrinking, which can effectively avoid the length of the leather from being shortened, improve the final leather yield, and effectively improve the use effect.

[0014] The present application can be used for tautly drying leather of different lengths end to end, the structure is more convenient to use, the size can be used in a wider range, and the use limitations are effectively reduced.

[0015] The present application can effectively avoid the hot air from being used for drying the single area of the leather, avoid over-drying, effectively improve the hot air drying degree through continuous conveying of the leather, avoid incomplete drying, improve the tautly drying uniformity of the leather dryer, have good drying use effects, and have stronger practicality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic view of the overall three-dimensional structure of the leather dryer according to the present application;

[0017] Figure 2A schematic view of a leather tightening structure on the upper surface of the lower machine plate according to the embodiment of the present utility model;

[0018] Figure 3 A lower view structural schematic diagram of the hot air cover bottom according to the embodiment of the present utility model;

[0019] Figure 4 A hot air structure schematic diagram inside the outer cover according to the embodiment of the present utility model;

[0020] Figure 5 A cut structure schematic diagram inside the hot air cover according to the embodiment of the present utility model.

[0021] In the figure: 1, lower machine plate; 2, guide plate; 3, threaded screw rod; 4, light pole; 5, primary column; 6, secondary column; 7, rotating roller; 8, rotating motor; 9, servo motor; 10, hot air cover; 11, fan motor; 12, hot air fan; 13, heating rod; 14, outer cover; 15, air outlet plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0023] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances.

[0025] Please refer toFigures 1-5 The utility model provides an embodiment: a kind of leather taut leather drying machine, including lower machine plate 1, its characterized in that, the upper surface both sides of lower machine plate 1 are fixedly installed with guide plate 2, one of guide plate 2 is rotatably installed with threaded lead screw 3 in bearing, another guide plate 2 is fixedly installed with light pole 4 in the inside, threaded lead screw 3 is positive and negative screw rod, wherein, to drive threaded lead screw 3 to carry out the positive and negative rotation work of automation, threaded lead screw 3 one end is fixedly connected the output shaft of servo motor 9, servo motor 9 is fixedly installed on the outer wall of guide plate 2 by bolt, so as to be driven threaded lead screw 3 by the output shaft of servo motor 9 and carry out the positive and negative rotation work of automation by being set servo motor 9;

[0026] Positive and negative thread of threaded lead screw 3 is all set with one level column 5, the bottom of two one level columns 5 is screw connected with threaded lead screw 3, two two level columns 6 of symmetry with one level column 5 are slidably installed on light pole 4, and the opposite two one level columns 5 and two level columns 6 are rotatably installed with rotating roller 7 by bearing, one of the outer wall of one level column 5 is fixedly installed with rotating motor 8 by fixed bolt, and the output shaft of rotating motor 8 is fixedly connected with one of rotating roller 7;

[0027] According to the above structure, when the leather is dried and taut, the whole leather can be set between the two rotating rollers 7, and the head and tail ends of the leather are fixedly connected, so that the leather is sleeved between the two rotating rollers 7.

[0028] At this time, the servo motor 9 can work, and the threaded lead screw 3 is driven to rotate when the servo motor 9 works. Since the threaded lead screw 3 is a positive and negative threaded lead screw, when the threaded lead screw 3 rotates, the two one level columns 5 screw-connected thereon will move closer to each other or move away from each other (this effect depends on the forward and reverse rotation of the servo motor 9).

[0029] When the two one level columns 5 move away from each other, they will simultaneously drive the two rotating rollers 7 and the two level columns 6 on the other side to move relatively, at this time, the distance between the two rotating shafts 7 increases, and the leather sleeved between the two rotating shafts 7 will be taut by the two rotating shafts 7 during the continuous increase of the distance between the two rotating shafts 7. Thus, the leather sleeved between the two rotating shafts 7 can be taut before drying through the relative movement of the two rotating shafts 7.

[0030] The two rotating shafts 7 after being tightened are similar to a conveying belt structure (the leather is a belt body, and the rotating rollers 7 are rotating driving shafts), and one of the rotating rollers 7 can be driven to rotate by the rotating motor 8 arranged, when one of the rotating rollers 7 rotates, the leather is circulated and reciprocated between the two rotating rollers 7 through the friction force between the roller body and the leather, the leather can be conveyed and converted in the hot air drying area through the circulating conveying of the leather, so that the hot air can be effectively avoided to dry the single area of the leather, the over-drying or incomplete drying situation is avoided, the leather drying uniformity of the drying machine is improved, and good drying use effect is achieved.

[0031] In the embodiment, in order to meet the normal leather hot air drying processing requirement of the drying machine, as shown in the specific reference description Figure 3 、 Figure 4 and Figure 5 , the upper surface of the lower machine plate 1 is covered with a hot air cover 10, the top end of the hot air cover 10 is fixedly installed with two symmetrical fan motors 11 on the upper surface, and the output shaft bottom end of the fan motor 11 is fixedly installed with a hot fan 12.

[0032] Further, a plurality of evenly distributed heating rods 13 are fixedly installed below the hot fan 12.

[0033] The structure design, the heating rods 13 arranged can heat the internal environment, the fan motor 11 can drive the hot fan 12 to rotate, the hot fan 12 drives the internal air to flow from top to bottom when rotating, the flowing air is heated by the heating rods 13 to form downward blowing hot air, so that the hot air drying structure can perform hot air drying work on the leather below, and the normal drying effect of the utility model is ensured.

[0034] In the embodiment, in order to separate and protect the top hot air structure, the hot fan 12 and the plurality of heating rods 13 are jointly covered with an outer protective cover 14, and the outer protective cover 14 arranged can separate and protect the heating rods 13 and the hot fan 12 structure inside.

[0035] At the same time, in order to ensure the normal hot air outflow effect, the bottom end of the outer protective cover 14 is fixedly installed with an air outlet plate 15 on the lower surface, and a plurality of equidistant strip air outlets are formed on the outer surface of the air outlet plate 15, so that the hot air can be blown out from top to bottom through the plurality of strip air outlets arranged, so that the leather below can be subjected to hot air drying treatment.

[0036] Working principle: when the leather needs to be dried and tightened, the whole leather can be arranged between the two rotating rollers 7 at this time, and the first end and the second end of the leather are fixedly connected, so that the leather is sleeved between the two rotating rollers 7.

[0037] At this time, the servo motor 9 can work, the servo motor 9 drives the threaded rod 3 to rotate when working, since the threaded rod 3 is a positive and negative threaded rod, when the threaded rod 3 rotates, the two primary columns 5 connected by threads on the threaded rod 3 will approach or move away from each other (the effect depends on the positive and negative rotation of the servo motor 9);

[0038] When the two primary columns 5 move away from each other, they will synchronously drive the two rotating rollers 7 and the secondary column 6 on the other side to move relatively, at this time, the distance between the two rotating shafts 7 increases, and the leather sleeved between the two rotating shafts 7 will be tightened by the two rotating shafts 7 during the continuous increase of the distance between the two rotating shafts 7, so that the leather sleeved between the two rotating shafts 7 can be tanned before drying through the relative movement of the two rotating shafts 7;

[0039] Then the heating rod 13 can heat the internal environment, and the fan motor 11 can drive the hot fan 12 to rotate, the hot fan 12 drives the internal air to flow from top to bottom when rotating, and the flowing air is heated by the heating rod 13 to form hot air blowing downward, so that the hot air drying structure can dry the leather below to ensure the normal drying effect of the utility model;

[0040] The two rotating shafts 7 and the leather after being tightened are similar to a conveyor belt structure (the leather is a "belt body" and the rotating roller 7 is a "driving shaft" for conveying), and the rotating motor 8 can drive one of the rotating rollers 7 to rotate, when one of the rotating rollers 7 rotates, the leather will be circulated and reciprocated between the two rotating rollers 7 through the friction between the roller body and the leather, the leather can be transmitted and circulated through the circulating transmission of the leather, so that the hot air drying area of the leather can be transmitted and converted, thereby effectively avoiding the hot air drying the same area of the leather all the time, avoiding the situation of over-drying or incomplete drying, improving the leather tanning drying uniformity of the drying machine, and having good drying effect;

[0041] When the leather is tanned and dried, each structure stops working, after the machine cools down, the first and last ends of the leather can be cut off, then the dried leather can be taken out, then the servo motor 9 is reversed, the two rotating rollers 7 approach each other and reset, so as to complete the reset work of the machine.

[0042] In summary, the utility model discloses the cooperation of the above tight structure, which can tighten the leather during drying, avoid the shrinkage of the leather due to water loss, effectively avoid the wrinkles on the surface of the leather, improve the surface extensibility during leather drying processing, ensure the flatness of the leather surface, effectively improve the hot air drying processing quality of the leather, and have good effects.

[0043] Meanwhile, when the leather is tightened and dried, the leather is prevented from shrinking, which can effectively avoid the length shortening of the leather due to shrinkage, improve the final leather yield of the leather, and effectively improve the use effect.

[0044] The rotating roller tightening structure has dynamic thread adjustability between the two roller bodies, which can dynamically adjust the spacing according to the length of different leathers, so that it can be used for end-to-end leather drying of leathers of different lengths, the structure is more convenient to use, the size range is more extensive, and the use limitation is effectively reduced.

[0045] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A leather drying machine, comprising a lower plate (1), characterized in that, Guide plates (2) are fixedly installed on both sides of the upper surface of the lower plate (1). A threaded screw (3) is rotatably installed in one of the guide plates (2) through a bearing. A smooth rod (4) is fixedly installed in the other guide plate (2). The threaded screw (3) is a positive and negative screw. A primary column (5) is sleeved on the positive and negative threads of the threaded screw (3). The bottom ends of the two primary columns (5) are threadedly connected to the threaded screw (3). Two secondary columns (6) symmetrical to the primary columns (5) are slidably installed on the smooth rod (4). A rotating roller (7) is rotatably installed between the two primary columns (5) and the secondary columns (6) through a bearing. A rotating motor (8) is fixedly installed on the outer wall of one of the primary columns (5) through a fixing bolt. The output shaft of the rotating motor (8) is fixedly connected to one of the rotating rollers (7). A hot air cover (10) is provided in the middle of the upper surface of the lower plate (1).

2. The leather drying machine according to claim 1, characterized in that: One end of the threaded screw (3) is fixedly connected to the output shaft of the servo motor (9), and the servo motor (9) is fixedly installed on the outer wall of the guide plate (2) by bolts.

3. The leather drying machine according to claim 1, characterized in that: Two symmetrically distributed fan motors (11) are fixedly installed on the top surface of the hot air cover (10) by bolts, and a hot fan (12) is fixedly installed at the bottom of the output shaft of the fan motor (11).

4. A leather drying machine according to claim 3, characterized in that: Several evenly distributed heating rods (13) are fixedly installed below the hot fan (12), and the hot fan (12) and the heating rods (13) are covered by an outer protective cover (14).

5. A leather drying machine according to claim 4, characterized in that: An air outlet plate (15) is fixedly installed on the lower surface of the bottom end of the outer protective cover (14).

6. A leather drying machine according to claim 5, characterized in that: The outer surface of the air outlet plate (15) is provided with several equally spaced strip-shaped air outlets.

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