Sealing cover for leather drying machine

Abstract

The invention relates to a sealing cover for a leather drying machine, and relates to the technical field of leather drying. The leather drying device comprises a supporting plate, a workbench used for being arranged corresponding to the sealing cover is arranged below the supporting plate, and the workbench is used for placing to-be-dried leather and conducting heating and vacuumizing on the leather. The device further comprises a cover plate and a surrounding plate integrally formed on the peripheral wall of the cover plate, the cover plate and the surrounding plate are both made of deformable materials, the cover plate is arranged on the side, facing the workbench, of the supporting plate, and the surrounding plate is arranged on the side, facing the workbench, of the cover plate and used for abutting against the upper surface of the workbench. The cover plate, the surrounding plate and the workbench jointly define a closed space, and a receding cavity is formed in the end, close to the workbench, of the surrounding plate in the circumferential direction of the surrounding plate. The sealing cover for the leather drying agent has the effect of improving the sealing performance of the sealing cover for the leather drying agent.

Description

Technical Field

[0001] The present application relates to the technical field of leather drying, and in particular to a sealing cover for a leather drying machine. Background Art

[0002] In the leather manufacturing industry, in the tanning process, it is necessary to reduce the moisture content of the leather from 60%-75% to 16%-18% after wet processing of the leather, that is, to use a leather dryer to dry the leather.

[0003] A leather dryer generally includes a workbench, a cover body arranged on the workbench, a heating component and a vacuum component are also arranged on the workbench. The heating component can be specifically a hot water pipe arranged inside the workbench, and a heat exchanger connected to the hot water pipe; the vacuum component can be specifically an exhaust pipe inserted on the workbench and an exhaust device connected to the exhaust pipe; in the actual drying process, the leather to be dried is laid on the workbench, and then the cover body is covered on the surface of the workbench so that the cover body and the workbench enclose a closed space, and then the vacuum component is used to evacuate the aforementioned closed space to a negative pressure, and then the closed space is heated by the heating component to achieve drying of the leather.

[0004] Among them, the specific structure of the cover body is as follows Figure 1 As shown, it includes a support plate 3, a rubber plate 9 and a skirt 91. The rubber plate 9 is located on one side of the support plate 3 facing the workbench 5. The skirt 91 is circumferentially arranged on the periphery of the support plate 3. The skirt 91 and the rubber plate 9 are fixedly connected to the support plate 3 by structures such as rivets or bolts. The skirt 91 is naturally drooped under the action of its own weight and the vacuuming action of the vacuuming component to make the skirt 91 fit with the upper surface of the workbench 5, so that the skirt 91, the rubber plate 9 and the workbench 5 together enclose a sealed closed space 12, forming a negative pressure environment in the closed space 12.

[0005] Regarding the above-mentioned related technologies, although the skirt and the rubber plate are fixed to the support plate by rivets or bolts, the riveted or bolted connection method will inevitably cause air leakage at the joints between the skirt and the support plate, especially at the joints not connected with rivets and bolts, thereby affecting the sealing effect of the closed space and the vacuum effect. Summary of the invention

[0006] In order to improve the sealing effect of a cover of a leather dryer, the present application provides a sealing cover for a leather dryer.

[0007] The present application provides a sealing cover for a leather dryer, which adopts the following technical solution: A sealing cover for a leather dryer comprises a support plate, a workbench corresponding to the sealing cover is arranged below the support plate, the workbench is used to place leather to be dried, and to heat and evacuate the leather; it also comprises a cover plate and an enclosure formed integrally with the peripheral wall of the cover plate, the cover plate and the enclosure are both made of deformable material, the cover plate is arranged on the side of the support plate facing the workbench, the enclosure is arranged on the side of the cover plate facing the workbench and is used to interfere with the upper surface of the workbench, the cover plate, the enclosure and the workbench together enclose a closed space, and a clearance cavity is opened in the inner part of one end of the enclosure close to the workbench along its circumference.

[0008] By adopting the above technical scheme, when it is necessary to use a sealing cover to cover the upper surface of the workbench to form a closed space, the support plate can be pre-connected with the lifting assembly, and the lifting assembly can be used to move the support plate downward until the enclosure is pressed against the upper surface of the workbench. At this time, the enclosure, the cover plate and the workbench are jointly enclosed to form a closed space, and because the cover plate and the enclosure are integrally formed, there will be no air leakage at the joint between the cover plate and the enclosure. In addition, the setting of the yield cavity inside the enclosure can increase the deformability of the enclosure when the enclosure conflicts with the workbench, optimize the conflict tightness between the enclosure and the workbench, and further improve the sealing effect of the closed space.

[0009] Preferably, it also includes a positioning module, a control module and a moving component, the positioning module is electrically connected to the control module, the moving component is controlled by the control module, the moving component is used to drive the cover plate to slide along the surface of the support plate, the positioning module is used to identify the position information of the leather on the workbench, the control module is used to obtain the leather position information and control the moving component to drive the cover plate and the enclosure plate to move, so that the leather on the workbench is completely located in the closed space.

[0010] By adopting the above technical solution, this solution realizes intelligent recognition of the position of the leather, and based on this, efficiently adjusts the position of the cover and the enclosure to ensure that the cover and the enclosure can completely cover the periphery of the leather on the workbench. This solution reduces the degree of constraint on the leather placement area and improves applicability.

[0011] Preferably, the side of the enclosure facing away from the cover plate is enclosed to form a docking interface; the baffle plate and an opening and closing assembly are also included, the baffle plate is arranged on the side of the enclosure facing away from the cover plate, and the opening and closing assembly is used to drive the baffle plate to slide and enable the baffle plate to open and close the docking interface during the sliding process.

[0012] By adopting the above technical solution, on the batch leather drying processing line, when the drying of one piece of leather is completed and the leather is replaced, the opening and closing assembly can be used to drive the baffle cover to close at the docking interface to reduce the heat dissipation of the space enclosed by the cover and the enclosure, so as to help increase the heating rate in the subsequent leather drying process, so that the temperature in the closed space can reach the specified drying temperature more quickly, thereby indirectly improving the drying efficiency.

[0013] Preferably, it further includes a distance measuring sensor and a control module electrically connected to the distance measuring sensor, the opening and closing component is controlled by the control module, and the control module is also electrically connected to a lifting component, and the lifting component is used to drive the support plate to rise and fall; the distance measuring sensor is used to detect the distance value between the baffle and the workbench, and the control module is used to stop the lifting component and control the opening and closing component to drive the baffle to open the docking port when the distance value detected by the distance measuring sensor is equal to the leather thickness of the leather on the workbench.

[0014] By adopting the above technical solution, this solution limits the opening and closing conditions of the opening and closing components, that is, the docking port will be opened only when the distance between the baffle and the workbench is equal to the thickness of the leather, that is, only when the baffle is lowered to contact the leather on the workbench. The significance of limiting this operation is, on the one hand, to further reduce the heat dissipation in the space enclosed by the enclosure and the cover plate, and on the other hand, the movement of the baffle can be used to help flatten the leather, thereby helping to optimize the subsequent leather drying effect.

[0015] Preferably, a side wall of the baffle facing the workbench is provided with a water-absorbing pad for contacting the leather on the workbench.

[0016] By adopting the above technical solution, the water-absorbing pad can be in contact with the leather surface when the baffle opens the docking port, thereby pre-treating the moisture on the leather surface and further improving the drying effect.

[0017] Preferably, the opening and closing assembly comprises a sliding member and a water squeezing member, the sliding member is used to drive the baffle to slide so that the baffle opens and closes the docking port, and the water squeezing member is used to squeeze the water absorbent pad.

[0018] By adopting the above technical solution, the water-absorbing pad is squeezed by the water squeezing part to prevent the water-absorbing pad in a saturated state from absorbing water from subsequent leather, thereby affecting its water absorption capacity for subsequent leather, thereby optimizing the moisture pretreatment effect on the leather surface.

[0019] Preferably, a transition plate is arranged between the support plate and the cover plate, and the baffle is slidably connected to the transition plate through a sliding member; the water squeezing member includes clamping plates symmetrically arranged on both sides of the water absorbent pad, a docking frame inside the baffle slidably connected to the inner wall of the leather, a first spring arranged between the docking frame and the baffle, a second spring arranged between the clamping plate and the baffle, and a docking protrusion arranged on the transition plate; when the first spring and the second spring are not deformed, the docking protrusion is located on the sliding path of the docking frame when it slides with the baffle, and the docking frame is used to push the clamping plate when it is contacted by the docking protrusion, so that the clamping plate presses the water absorbent pad in the direction close to the water absorbent pad.

[0020] By adopting the above technical solution, the docking frame is brought into contact with the docking protrusion by the movement of the baffle plate, and then the docking frame pushes the clamping plate under the contact of the docking protrusion, so that the clamping plates move towards each other and squeeze the absorbent pad, thereby squeezing out the moisture in the absorbent pad.

[0021] Preferably, a slot for inserting a water-absorbing pad is provided on the surface of the baffle plate, an adsorption iron sheet is provided on the inner wall of the slot, and a magnet sheet for magnetically adsorbing the adsorption iron sheet is provided on the peripheral wall of the water-absorbing pad; a yielding surface is provided together with the magnet sheet near the clamping plate and the corresponding clamping plate, and the yielding surface is used to make the water-absorbing pad move up first during the extrusion process of the clamping plate, and then deformed by the extrusion of the clamping plate when the clamping plate conflicts with the water-absorbing pad; An insertion rod is arranged on the side walls of the two baffles facing each other. The insertion rod is used to be inserted into the slot of another baffle except the baffle to which it belongs when the two baffles contact each other, so that the water absorbent pad moves down along the depth direction of the slot to a position flush with the lower surface of the baffle.

[0022] By adopting the above technical scheme, in the process of squeezing water from the absorbent pad by using the splint, the splint will first drive the absorbent pad to move upward, and then squeeze the absorbent pad. The upward movement of the absorbent pad can make the lower surface of the absorbent pad higher than the position of the lower surface of the baffle, and the magnetic effect of the magnet sheet and the adsorption iron sheet is used to fix the position of the absorbent pad. Then, when the baffle slides and covers the docking port, the absorbent pad will not contact the dried leather on the workbench to avoid the absorbent pad affecting the humidity of the leather. Until the two baffles contact each other and completely cover the docking port, the rod will be inserted into the slot of the other baffle, so that the rod pushes the absorbent pad downward, and the absorbent pad moves back to a position flush with the lower surface of the baffle, so that the absorbent pad can pre-treat the subsequent leather when the baffle is opened next time.

[0023] Preferably, an elastic member is provided between the transition plate and the cover plate, and when the elastic member is not deformed and the baffle plate is covered at the docking interface, the baffle plate is attached to the lower surface of the enclosure plate; a cam is rotatably connected to the transition plate, and the cam is used to press the cover plate during rotation so that the enclosure plate is pressed against the upper surface of the workbench.

[0024] By adopting the above technical solution, when the baffle slides and detaches from under the enclosure, the cam is rotated so that the cam presses the cover plate against the upper surface of the workbench to achieve the sealed closure of the closed space. When the drying is completed, the cam can be reversed to drive the cover plate and the enclosure plate to move up to the top of the baffle through the elastic force of the elastic member so that the baffle cover is closed at the docking interface.

[0025] In summary, this application includes the following beneficial technical effects: When it is necessary to use a sealing cover to cover the upper surface of the workbench to form a closed space, the support plate can be pre-connected with the lifting assembly, and the lifting assembly can be used to move the support plate downward until the enclosure is pressed against the upper surface of the workbench. At this time, the enclosure, cover plate and workbench are jointly enclosed to form a closed space, and since the cover plate and the enclosure are integrally formed, there will be no air leakage at the joint between the cover plate and the enclosure. In addition, the setting of the yield cavity inside the enclosure can increase the deformability of the enclosure when the enclosure conflicts with the workbench, optimize the contact tightness between the enclosure and the workbench, and further improve the sealing effect of the closed space. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional view of a cover structure in the prior art.

[0027] Figure 2 It is a schematic diagram used to reflect the positional relationship between the transition plate and the support plate in the embodiment of the present application.

[0028] Figure 3 It is a structural schematic diagram of a sealing cover for a leather dryer disclosed in an embodiment of the present application.

[0029] Figure 4 yes Figure 2 Sectional view along AA direction.

[0030] Figure 5 It is a schematic diagram used to reflect the positional relationship between the cam and the drive motor in the embodiment of the present application.

[0031] Figure 6 yes Figure 3 A magnified schematic diagram of point B in the middle.

[0032] Figure 7 It is a cross-sectional view used to illustrate the structure of the sliding member in the embodiment of the present application.

[0033] Figure 8 yes Figure 7 Enlarged schematic diagram of point C in the middle.

[0034] Explanation of reference numerals: 1, cover plate; 11, elastic member; 12, closed space; 13, fixed plate; 2, enclosure; 21, docking port; 22, clearance cavity; 3, support plate; 31, moving assembly; 4, transition plate; 5, workbench; 6, baffle; 61, slot; 62, water-absorbing pad; 63, magnet sheet; 631, clearance surface; 632, docking surface; 64, insertion rod; 65, insertion hole; 7, opening and closing assembly; 71, sliding member; 711, supporting frame ; 712, first gear; 713, first rack; 714, drive motor; 715, second gear; 716, second rack; 717, cam; 72, water squeezing part; 721, clamping plate; 722, docking frame; 723, first spring; 724, second spring; 725, docking protrusion; 726, water receiving trough body; 8, control module; 81, positioning module; 82, distance measuring sensor; 84, lifting assembly; 9, rubber plate; 91, skirt. DETAILED DESCRIPTION

[0035] The following is combined with Figure 2-8 This application is described in further detail.

[0036] The present application embodiment discloses a sealing cover for a leather drying machine. Figure 2 and Figure 3 The sealing cover for the leather dryer includes a cover plate 1 and a surrounding plate 2 integrally formed on the peripheral wall of the cover plate 1. The cover plate 1 and the surrounding plate 2 are both made of deformable materials, such as a layer of rubber wrapped around the periphery of a PVC plate. The cover plate 1 is fixedly connected with a fixing plate 13 away from the surrounding plate 2. The hardness of the fixing plate 13 is greater than the hardness of the cover plate 1. The peripheral wall of the cover plate 1 is integrally formed with a skirt 91 extending along its circumference. The skirt 91 is provided with a screw, which penetrates the cover plate 1 and is threadedly connected to the fixing plate 13. A clearance cavity 22 is opened in the inner part of the side of the surrounding plate 2 away from the cover plate 1 along its circumference. The clearance cavity 22 can be located in the rubber to increase the degree of deformation of the surrounding plate 2. The enclosing plate 2 is enclosed to form a docking port 21. A workbench 5 is provided on one side of the enclosing plate 2 away from the cover plate 1. The workbench 5 is used to place the leather to be dried. A heating component and a vacuum component are provided in the workbench 5 (this is the prior art. Because the drawings of this application do not show its structure, no further description is given) to heat and vacuum the leather. The cover plate 1 and the enclosing plate 2 are covered on the upper surface of the workbench 5, so that the cover plate 1, the enclosing plate 2 and the workbench 5 are enclosed together to form a sealed closed space 12, and the leather to be dried on the workbench 5 is placed in the closed space 12, so that the leather can be dried stably and efficiently in the future.

[0037] Reference Figure 3 and Figure 4The side of the fixed plate 13 away from the cover plate 1 is connected with a transition plate 4, and the side of the transition plate 4 away from the fixed plate 13 is provided with a support plate 3, and the transition plate 4 is slidably connected to the lower surface of the support plate 3, and the sliding directions of the transition plate 4 relative to the support plate 3 are respectively the length direction of the support plate 3 and the width direction of the support plate 3. The support plate 3 is provided with a moving component 31 for driving the transition plate 4 to slide along the aforementioned two directions, and the moving component 31 can be specifically a combination structure of a motor screw.

[0038] Reference Figure 2 and Figure 4 , a positioning module 81 is also provided on the support plate 3, and the positioning module 81 is electrically connected to the control module 8, and the moving component 31 is controlled by the control module 8. Specifically, the positioning module 81 can be a camera connected to the support frame through a rotating shaft, and a motor can be connected to the rotating shaft to drive the camera to a position facing the upper surface of the workbench 5, so that the positioning module 81 can take an image of the upper surface of the workbench 5, and the position of the leather on the upper surface of the workbench 5 can be known from the image, that is, the leather position information, and the control module 8 is used to obtain the aforementioned image, and establish a coordinate system based on the aforementioned image, and determine the leather position information in the form of coordinates, and the leather position information can be specifically embodied in the form of a coordinate range. The control module 8 is used to control the moving component 31 to drive the transition plate 4 and the fixed plate 13, the cover plate 1 and the enclosure 2 connected to the transition plate 4 to slide along the support plate 3 according to the leather position information, so that the enclosure 2 can cover the periphery of the entire leather when it fits with the workbench 5.

[0039] Reference Figure 3 and Figure 5 , further comprising a baffle 6 and an opening and closing assembly 7, wherein the number of baffles 6 is 2 and they are symmetrically arranged on the side of the enclosure 2 away from the cover plate 1 with the docking port 21 as the center; the opening and closing assembly 7 is used to drive the baffle 6 to slide relative to the enclosure 2 below the enclosure 2, so that the baffle 6 opens and closes the docking port 21 during the sliding process. Specifically, the opening and closing assembly 7 comprises a sliding member 71, and each baffle 6 corresponds to a sliding member 71. The sliding member 71 specifically comprises a support frame 711, a first gear 712, a first rack 713 and a driving motor 714. The support frame 711 is fixedly connected to the lower surface of the transition plate 4, and the support frame 711 is located at the periphery of the cover plate 1 and the enclosure 2. The baffle plate 6 is inserted into the side walls of the support frame 711 on both sides, the first rack 713 is connected to one side wall of the baffle plate 6 close to the support frame 711, the first gear 712 is rotatably connected to the support frame 711, and the first gear 712 is meshedly connected to the first rack 713, the drive motor 714 is installed on the support frame 711, and the drive end of the drive motor 714 is connected to the rotation center of the first gear 712.

[0040] Reference Figure 3 and Figure 5The support frame 711 is also rotatably connected to a cam 717 through a rotating rod, and the rotating rod and the driving shaft of the driving motor 714 are respectively sleeved with a second gear 715. The side wall of the support frame 711 is slidably connected to a second rack 716 along its height direction. The second rack 716 is always meshed with the second gear 715 on the driving shaft of the driving motor 714, and is used to mesh with the second gear 715 on the rotating rod during the sliding process, and drive the cam 717 to rotate. An elastic member 11 is provided between the transition plate 4 and the fixed plate 13, and the fixed plate 13 is connected to the transition plate 4 through the elastic member 11. The elastic member 11 is specifically a telescopic tube with a spring. When the elastic member 11 is not deformed and the baffle 6 covers the docking port 21, the baffle 6 is in contact with the lower surface of the enclosure 2; and at this time, the upper surface of the fixed plate 13 is located on the rotation path of the cam 717, and the cam 717 is used to press the fixed plate 13 during the rotation process so that the fixed plate 13 moves downward, and the downward movement of the fixed plate 13 is not less than the sum of the thickness of the baffle 6 and the leather, that is, to ensure that when the baffle 6 slides and detaches from the lower surface of the enclosure 2, the enclosure 2 can move down to contact the upper surface of the workbench 5 under the pressure of the cam 717, and the elastic member 11 is in a tensile deformation state during this process. When the cam 717 reverses and releases the pressure on the fixed plate 13, the cover plate 1 and the enclosure 2 will move up a specified distance under the elastic force of the elastic member 11 to achieve reset, and the aforementioned specified distance can ensure that after the cover plate 1 and the enclosure 2 stop moving, when the baffle 6 slides to the bottom of the enclosure 2 in the direction close to the enclosure 2, the baffle 6 is in contact with the lower surface of the enclosure 2.

[0041] Reference Figure 2 , Figure 3 and Figure 5 The sliding member 71 is controlled by the control module 8, and the control module 8 is also electrically connected to the distance sensor 82 and the lifting assembly. The lifting assembly can be specifically a motor screw combination structure connected to the support plate 3, which is used to drive the support plate 3 and the fixed plate 13 to rise and fall as a whole. The distance sensor 82 is embedded in the lower surface of the baffle 6 to detect the distance value between the baffle 6 and the workbench 5. When the distance value detected by the distance sensor 82 is equal to the leather thickness of the leather on the workbench 5, the control module 8 is used to stop the lifting assembly from controlling the downward movement of the support plate 3 and the fixed plate 13, and control the sliding member 71 to drive the baffle 6 to slide in the direction away from the enclosure 2 to the periphery of the enclosure 2 to open the docking port 21, and when the baffle 6 completely slides to the periphery of the enclosure 2, the cam 717 just rotates to the position of contacting the cover plate 1, and in the process of the enclosure 2 continuing to slide, the cam 717 further rotates and presses the cover plate 1, so that the cover plate 1 and the enclosure 2 move downward until they press against the upper surface of the workbench 5.

[0042] Reference Figure 3 and Figure 6, each baffle 6 has a slot 61 formed on its lower surface near each other, and a water-absorbing pad 62 is inserted into the slot 61, and the water-absorbing pad 62 can be a sponge. The side walls of the water-absorbing pad 62 are connected with magnet pieces 63, respectively, and the water-absorbing pad 62 and the magnet piece 63 are connected to the slot 61 in a sliding manner along the depth direction of the slot 61 (i.e., the thickness direction of the baffle 6), and the inner wall of the slot 61 is embedded with an adsorption iron piece that is magnetically adsorbed to the magnet piece 63, so as to fix the sliding position of the water-absorbing pad 62.

[0043] Reference Figure 3 , Figure 6 and Figure 7 The opening and closing assembly 7 further includes a water squeezing member 72. Each water absorbing pad 62 corresponds to a water squeezing member 72. The water squeezing member 72 includes a clamping plate 721, a docking frame 722, a first spring 723, a second spring 724 and a docking protrusion 725. There are two clamping plates 721, which are symmetrically arranged in the corresponding baffle plate 6 with the corresponding water absorbing pad 62 as the center, and the clamping plates 721 are slidably connected in the corresponding baffle plate 6 through the second spring 724; the docking frame 722 is slidably connected in the corresponding baffle plate 6 through the first spring 723, and the docking frame 722 is arranged on the outer periphery of the two corresponding clamping plates 721, so as to squeeze the clamping plates 721 during the sliding process and make the clamping plates 721 move toward each other. One end of the docking frame 722 away from the clamping plate 721 extends to the outside of the baffle 6 , and the docking protrusion 725 is disposed on the side wall of the support frame 711 , and when the first spring 723 is not deformed, the docking protrusion 725 is located on the sliding path of the docking frame 722 .

[0044] Reference Figure 6 , Figure 7 and Figure 8 The side walls of the magnet sheet 63 and the clamping plate 721 facing each other are provided with a clearance surface 631. The clearance surface 631 is used to push the magnet sheet 63 after the clamping plate 721 contacts the magnet sheet 63, so that the magnet sheet 63 and the water-absorbing pad 62 move toward the bottom of the slot 61. After moving a specified distance, the lower surface of the water-absorbing pad 62 is higher than the lower surface of the baffle 6. As the clamping plate 721 slides further, the clamping plate 721 will further push the magnet sheet 63, so that the magnet sheets 63 located on both sides of the water-absorbing pad 62 move toward each other, so that the water-absorbing pad 62 is squeezed and deformed. It should be noted that the side wall of the support frame 711 is provided with a water receiving trough body 726. When the water-absorbing pad 62 is squeezed and deformed, the water-absorbing pad 62 just moves to the top of the water receiving trough body 726 with the movement of the baffle 6, so that the water receiving trough body 726 receives the water squeezed out of the water-absorbing pad 62.

[0045] Reference Figure 3 and Figure 6The side walls of the two baffles 6 facing each other are respectively provided with insertion rods 64, and the two insertion rods 64 are staggered along the width direction of the baffles 6. Each baffle plate 6 is provided with a socket 65 for the insertion rod 64 on the other baffle plate 6 to penetrate and insert, and the socket 65 is connected with the slot 61. When the two baffle plates 6 slide and cover the docking interface 21, the side walls of the two baffle plates 6 fit together. At this time, the plug rod 64 passes through the socket 65 of another baffle plate 6 other than the baffle plate 6 to which it belongs and is inserted into the corresponding slot 61. In addition, the end of the plug rod 64 and the side wall of the magnet sheet 63 are also provided with a docking surface 632. The docking surface 632 is used to make the magnet sheet 63 move downward under the resistance of the plug rod 64 when the plug rod 64 contacts the side wall of the magnet sheet 63. When the two baffle plates 6 fit together, the plug rod 64 is inserted into the slot 61. At this time, the magnet sheet 63 drives the water absorbent pad 62 to move downward under the resistance of the plug rod 64, so that the water absorbent pad 62 moves down to a state flush with the lower surface of the baffle plate 6 (i.e. Figure 6 ), so that the absorbent pad 62 can contact the leather on the upper surface of the workbench 5.

[0046] The implementation principle of a sealing cover for a leather dryer in the embodiment of the present application is as follows: the leather to be dried is laid on the workbench 5, and then the control module 8 drives the positioning module 81 to be installed just above the workbench 5, and the leather position information is identified by the positioning module 81. The control module 8 controls the moving component 31 to drive the cover plate 1 and the surrounding plate 2 to slide according to the leather position information, so that the cover plate 1 and the surrounding plate 2 move to just above the leather, and then the control module 8 controls the positioning module 81 to rotate and reset, and then controls the lifting component 84 to drive the support plate 3 to move downward, and during this period, the distance value detected by the distance measuring sensor 82 is obtained in real time, until After the baffle 6 moves to a position in contact with the upper surface of the leather, the driving of the lifting assembly 84 is stopped, and then the sliding member 71 is controlled to drive the baffle 6 to slide in a direction away from the enclosure 2 to open the docking port 21. During this period, the second rack 716 moves up and engages with the second gear 715 on the rotating rod on the cam 717, thereby causing the cam 717 to rotate. In this process, since the lower surface of the absorbent pad 62 is flush with the lower surface of the baffle 6, the absorbent pad 62 will contact the leather surface and pre-treat the leather surface, that is, absorb part of the moisture on the leather surface to help improve the subsequent leather drying efficiency. When the baffle 6 slides to the outer periphery of the enclosure 2, the cam 717 just rotates to contact the upper surface of the cover plate 1, and at this time the docking protrusion 725 abuts against the docking frame 722, and the absorbent pad 62 moves to above the water receiving trough body 726, and then the baffle 6 continues to slide, the cam 717 presses against the cover plate 1 and drives the cover plate 1 and the enclosure 2 to move downward, and the clamping plates 721 move toward each other, so that the absorbent pad 62 moves up along the depth direction of the slot 61, and is squeezed so that the water inside the absorbent pad 62 is squeezed out and falls into the water receiving trough body 726, and when the enclosure 2 abuts against the upper surface of the workbench 5, the control module 8 stops the movement of the sliding member 71.

[0047] After the leather drying operation is completed, the control module 8 controls the sliding member 71 to start again, so that the sliding member 71 drives the baffle 6 to slide toward the direction close to the enclosure 2, and at this time the water-absorbing pad 62 is fixed in the slot 61 by the action of the magnet sheet 63 and the adsorption iron sheet, and its lower surface is higher than the lower surface of the baffle 6. Therefore, in the process of the baffle 6 sliding toward the enclosure 2, the water-absorbing pad 62 will not contact the leather that has been dried; and in this process, the cam 717 reverses to release the pressure on the cover plate 1, and the cover plate 1 and the enclosure 2 will move up under the elastic force of the elastic member 11 until the two baffles 6 move to the bottom of the enclosure 2 and fit each other, and the insertion rod 64 is inserted into the slot 61 and presses the magnet sheet 63, so that the magnet sheet 63 and the water-absorbing pad 62 move down, so that the lower surface of the water-absorbing pad 62 is flush with the lower surface of the baffle 6.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sealing cover for a leather dryer, comprising a support plate (3), a workbench (5) arranged corresponding to the sealing cover is arranged below the support plate (3), the workbench (5) is used to place leather to be dried, and to heat and evacuate the leather; characterized in that: The invention also comprises a cover plate (1) and a surrounding plate (2) integrally formed on the peripheral wall of the cover plate (1), wherein the cover plate (1) and the surrounding plate (2) are both made of a deformable material, the cover plate (1) is arranged on the side of the support plate (3) facing the workbench (5), and the surrounding plate (2) is arranged on the side of the cover plate (1) facing the workbench (5) and is used to contact the upper surface of the workbench (5), the cover plate (1), the surrounding plate (2) and the workbench (5) together enclose a closed space (12), and a clearance cavity (22) is opened in the inner part of one end of the surrounding plate (2) close to the workbench (5) along its circumference.

2. The sealing cover for leather drying machine according to claim 1, characterized in that: The invention also comprises a positioning module (81), a control module (8) and a moving component (31), wherein the positioning module (81) is electrically connected to the control module (8), the moving component (31) is controlled by the control module (8), the moving component (31) is used to drive the cover plate (1) to slide along the surface of the support plate (3), the positioning module (81) is used to identify the position information of the leather on the workbench (5), the control module (8) is used to obtain the position information of the leather, and control the moving component (31) to drive the cover plate (1) and the enclosure (2) to move, so that the leather on the workbench (5) is completely located in the closed space (12).

3. The sealing cover for leather drying machine according to claim 1, characterized in that: The side of the enclosure (2) facing away from the cover plate (1) is enclosed to form a docking port (21); and the enclosure also includes a baffle (6) and an opening and closing assembly (7), wherein the baffle (6) is arranged on the side of the enclosure (2) facing away from the cover plate (1), and the opening and closing assembly (7) is used to drive the baffle (6) to slide and enable the baffle (6) to open and close the docking port (21) during the sliding process.

4. The sealing cover for leather drying machine according to claim 3, characterized in that: The invention also comprises a distance sensor (82) and a control module (8) electrically connected to the distance sensor (82); the opening and closing assembly (7) is controlled by the control module (8); the control module (8) is also electrically connected to a lifting assembly (84); the lifting assembly (84) is used to drive the support plate (3) to move up and down; the distance sensor (82) is used to detect the distance value between the baffle plate (6) and the workbench (5); the control module (8) is used to stop the lifting assembly (84) when the distance value detected by the distance sensor (82) is equal to the leather thickness of the leather on the workbench (5), and control the opening and closing assembly (7) to drive the baffle plate (6) to open the docking port (21).

5. The sealing cover for leather drying machine according to claim 3, characterized in that: A water-absorbing pad (62) for contacting the leather on the workbench (5) is provided on a side wall of the baffle (6) facing the workbench (5).

6. The sealing cover for leather drying machine according to claim 5, characterized in that: The opening and closing assembly (7) comprises a sliding member (71) and a water squeezing member (72); the sliding member (71) is used to drive the baffle plate (6) to slide so that the baffle plate (6) opens and closes the docking port (21); and the water squeezing member (72) is used to squeeze the water absorbing pad (62).

7. The sealing cover for a leather drying machine according to claim 6, characterized in that: A transition plate (4) is arranged between the support plate (3) and the cover plate (1); the baffle plate (6) is slidably connected to the transition plate (4) via a sliding member (71); the water squeezing member (72) comprises clamping plates (721) symmetrically arranged on both sides of the water absorbing pad (62), a docking frame (722) slidably connected to the inside of the baffle plate (6) on the inner wall of the leather, a first spring (723) arranged between the docking frame (722) and the baffle plate (6), and a spring (723) arranged between the clamping plate (721) and the baffle plate (6). A second spring (724), and a docking protrusion (725) arranged on the transition plate (4); when the first spring (723) and the second spring (724) are not deformed, the docking protrusion (725) is located on the sliding path of the docking frame (722) when it slides with the baffle (6), and the docking frame (722) is used to push the clamping plate (721) when it is contacted by the docking protrusion (725), so that the clamping plate (721) presses the water absorbent pad (62) in a direction close to the water absorbent pad (62).

8. The sealing cover for leather drying machine according to claim 7, characterized in that: The baffle (6) is provided with a slot (61) on the surface for inserting the water absorbent pad (62), the inner wall of the slot (61) is provided with an adsorption iron sheet, and the peripheral wall of the water absorbent pad (62) is provided with a magnet sheet (63) for magnetically adsorbing the adsorption iron sheet; the magnet sheet (63) near the clamping plate (721) and the corresponding clamping plate (721) are jointly provided with a yielding surface (631), and the yielding surface (631) is used to make the water absorbent pad (62) move upwards during the squeezing process of the clamping plate (721) and then deformed by the squeezing of the clamping plate (721) when the clamping plate (721) and the water absorbent pad (62) collide with each other; An insertion rod (64) is provided on the side walls of the two baffles (6) facing each other. The insertion rod (64) is used to insert into the slot (61) of another baffle (6) other than the baffle (6) when the two baffles (6) are in contact with each other, so that the water-absorbing pad (62) moves downward along the depth direction of the slot (61) to a position flush with the lower surface of the baffle (6).

9. The sealing cover for a leather drying machine according to claim 7, characterized in that: An elastic member (11) is provided between the transition plate (4) and the cover plate (1); when the elastic member (11) is not deformed and the baffle plate (6) covers the docking port (21), the baffle plate (6) fits against the lower surface of the enclosure plate (2); a cam (717) is rotatably connected to the transition plate (4); the cam (717) is used to press the cover plate (1) during rotation so that the enclosure plate (2) presses against the upper surface of the workbench (5).

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