A dermis delivery and hanging device

Abstract

The application discloses a kind of dermis transport, hanging device, and hanging device is composed of front structure, rear structure and drying rack, the front structure is smoothly received from production line to cowhide, and the drying rack of "waist" is lifted to specified height to pick up cowhide, and the action of storage, separation and transmission of drying rack is completed by front structure, rear structure receives drying rack and cowhide from front structure, and moves to specified position and places, after completing the placement of rated number drying rack and cowhide, they are lowered together on drying rack, the dermis transport, hanging device of the present application can not only occupy a large space, but also can replace artificial automatic hanging, and eliminate manual contact with cowhide in operation process, thereby avoiding pollution to the surface of cowhide, the present application realizes the automatic and intelligent transformation of cowhide production line, and each part and structure can be fully automated and digitized control, solves a bottleneck in production line upgrading.

Description

Technical Field

[0001] This invention belongs to the field of automated leather production technology, specifically relating to a leather conveying and hanging device. Background Technology

[0002] In standardized industrial production, the processing of genuine leather from animal hide to finished product is very complex, involving many steps, which will not be elaborated here. One step that typically occurs multiple times in genuine leather production is removing the leather from the production line and hanging it on ropes or poles for cooling and drying. For example, with cowhide: after the surface is sprayed or roller-coated, and then dried in an oven on the production line, the leather, due to its high temperature and moisture content, needs to be removed from the oven and placed in a quiet space for further cooling and evaporation. This operation involves two key transport processes: first, removing the cowhide from the oven and hanging it on a load-bearing structure; and second, spreading it out to air dry.

[0003] Large manufacturing enterprises, where conditions permit, often install dedicated overhead drying lines at the rear of their production lines or certain processing equipment. These lines are essentially automated conveyor systems located in the upper levels of the workshop, where workers manually hang the hides on ropes or poles along the conveyor, allowing the hides to flow continuously forward. These conveyor systems are typically very long (a longer process is necessary for thorough handling), requiring a certain height and ample space in the workshop. This method of leather transport increases the company's investment, and the conveyor system itself lacks spatial flexibility.

[0004] For companies without access to overhead drying lines, a common practice is to place a drying cart (a movable drying rack) outside the production line. Two workers stand on either side of the production line's end, holding drying poles (usually hollow metal tubes with an outer diameter of about 25 mm) to lift the hides from the drying line. The poles and hides are then placed onto the drying carts, which are typically sized to hold 30-50 hides. Once full, the cart is pushed to an empty area for processing, and then another empty cart is moved to the next work area, and the cycle repeats. This method doesn't require a large workshop space, but it requires a significant amount of manpower, has low automation, and is prone to contaminating the hide surface, such as with sweat dripping onto the hides in summer.

[0005] The shortcomings of the existing receiving, conveying, and placing processes, taking cowhide as an example, have become a major bottleneck in genuine leather production lines, severely limiting the improvement of automation and intelligence. Summary of the Invention

[0006] The purpose of this invention is to design a genuine leather conveying and hanging device that does not require a large space and can replace manual conveying and hanging of genuine leather (cowhide). The key is that the structure can fully realize automated and intelligent conveying and hanging.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A genuine leather conveying and hanging device is provided. The hanging device consists of a front structure, a rear structure, and a leather drying cart. The front structure smoothly receives the cowhide from the production line and lifts the leather drying poles to a designated height. The storage, separation, and conveying of the leather drying poles are completed by the front structure. The rear structure receives the leather drying poles and cowhide from the front structure and moves them together to a designated location for placement. After the rated number of leather drying poles and cowhide are placed, they are lowered onto the leather drying cart.

[0009] Furthermore, the front structure consists of a leather lifting mechanism and a rod feeding component;

[0010] The lifting mechanism for cowhide includes a fixed frame, on which a brush roller drive motor and a brush roller assembly are mounted. Lifting transmission assemblies are mounted on both sides of the fixed frame. The lifting transmission assemblies are equipped with lifting plates. The lifting motor drives the lifting transmission assemblies to move up and down. Pushing cylinders are mounted on both sides of the upper end of the fixed frame.

[0011] The rod feeding component includes a movable frame with a rod storage mechanism inside. A drying rod lifting motor is installed on both sides of the movable frame. The drying rod lifting motor drives the lifting bending plate to move vertically through the drying rod lifting screw. The lifting bending plate is located at both ends of the rod storage mechanism to lift the drying rod inside the rod storage mechanism. A rod feeding cylinder is installed on the side of the rod storage mechanism, and a transfer plate is provided at the end of the rod feeding cylinder.

[0012] Furthermore, the transfer plate is located behind the brush roller assembly, so that the drying rod on the transfer plate is hidden inside the circumference of the brush roller, ensuring that when the leather falls from the brush roller, it can fall from the outside of the drying rod.

[0013] Furthermore, the movable frame has a frame structure, and is mounted on a pair of linear guides via a pair of sliders at the bottom. The linear guides are respectively mounted on both sides of the frame.

[0014] Furthermore, the storage mechanism forms a swing rod slot through two sets of drying rod storage racks. The top of one side of the drying rod storage rack has a sloping structure, which makes it easy for the uppermost drying rod to flip forward and out of the placement slot.

[0015] Furthermore, the rear structure is composed of an upper component and a lower component. The upper component is raised and lowered by several cylinders, and a drying cart is provided in the middle of the lower component.

[0016] Furthermore, the upper component includes a load-bearing frame, within which a conveyor belt assembly is arranged. The conveyor belt assembly is equipped with a conveyor scraper and is driven by a motor installed at the rear end of the load-bearing frame.

[0017] Compared with existing technologies, the above technical solution can achieve the following beneficial effects:

[0018] This application presents a genuine leather conveying and hanging device that does not require a large space, can replace manual labor for automatic conveying and hanging, and eliminates human contact with cowhide during operation, thereby avoiding contamination of the cowhide surface. This application realizes the automation and intelligent transformation of cowhide production lines by setting up a genuine leather conveying and hanging device. All its parts and structures can be fully automated and digitally controlled, solving the pain points of genuine leather conveying in the production line.

[0019] The structure adopts a modular combination, dividing the entire hanging system into front and rear structures, making the rear structure an independent whole. Furthermore, the front and rear structures are also decomposed into functional modules, which facilitates modular combination and allows users to select the specifications and combinations according to the size of the site.

[0020] The rear structure utilizes an automated guided vehicle (AGV) to transport and load the cowhide. The AGV's entry and exit are intelligently controlled, improving the system's automation level. All motors used are servo motors, enhancing the mechanism's precision and providing a material basis for digital control.

[0021] The rod feeding mechanism abandons conventional chain and belt drive methods and adopts rodless cylinder to transport and move the drying rod, eliminating vibration during the rod feeding process and improving the stability of the transfer. Attached Figure Description

[0022] Figure 1 This is a 3D diagram of the hanging device.

[0023] Figure 2 This is a side view of the hanging device.

[0024] Figure 3 This is a schematic diagram of the front structure.

[0025] Figure 4 This is a schematic diagram of the lifting mechanism for leather.

[0026] Figure 5 This is a schematic diagram of the rod feeding component.

[0027] Figure 6 This is a side view of the rear structure.

[0028] Figure 7 This is an exploded view of the rear structure.

[0029] Figure 8 This is a diagram of a drying cart used to hang a set of cowhides.

[0030] In the picture:

[0031] In the diagram: 1. Front structure; 2. Rear structure; 3. Drying cart; 4. Drying rod; 11. Lifting mechanism for leather; 12. Rod feeding component; 111. Fixed frame; 112. Brush roller assembly; 113. Brush roller drive motor; 114. Lifting transmission assembly; 115. Lifting motor; 116. Pushing cylinder; 121. Movable frame; 122. Drying rod lifting motor; 123. Drying rod lifting screw; 124. Rod feeding cylinder; 125. Transfer plate; 126. Linear guide rail; 127. Drying rod storage rack; 129. Lifting curved plate; 130. Inclined structure; 131. Swing rod groove; 21. Load-bearing frame; 22. Conveyor belt assembly; 23. Conveyor belt drive motor; 24. Conveying scraper; 25. Rear fixed frame; 26. Lifting cylinder. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-8 The present invention will be further described as follows:

[0033] like Figure 1 and 2 As shown, a genuine leather conveying and hanging device consists of three main parts: a front structure 1, a rear structure 2, and a leather drying cart 3. Figure 2 The dotted line in the middle shows the area of ​​the front structure 1 and the rear structure 2. The three components of the system are each independent modules, which can be manufactured in various specifications for combination. It is proposed that the drying cart adopts an intelligent trolley. The function of the front structure 1 is to smoothly pull the cowhides from the production line and to lift the cowhides with drying poles and then lift them to a designated height. The separation and transfer of the drying poles 4 are also completed in the front structure. The function of the rear structure 2 is to receive the drying poles and cowhides from the front structure and move them together to the required location. After a specified number of cowhides have been placed, the rear structure lowers them together onto the drying cart. The drying cart, carrying these cowhides and drying poles, can drive out of the rear structure area.

[0034] To further explain the positional relationship between the front structure 1 and the rear structure 2 in the horizontal and vertical directions, the upper structure of the rear structure 2 extends into the interior of the front structure 1, and the two are connected here.

[0035] in, Figure 1 and Figure 3 As shown, the front structure 1 consists of a leather lifting mechanism 11 and a rod feeding component 12, wherein, Figure 4As shown, the lifting mechanism for cowhide includes a fixed frame 111, on which a brush roller drive motor 113 and a brush roller assembly 112 are installed. Lifting transmission assemblies 114 are installed on both sides of the fixed frame. A lifting plate is provided below the lifting transmission assembly. The lifting motor 115 drives the lifting transmission assembly to move up and down. Pushing cylinders 116 are installed on both sides of the upper end of the fixed frame.

[0036] The fixed frame 111 is a frame structure composed of square tubes, fixedly installed on the ground, providing support or connection for all structures and components. The brush roller assembly 112, installed on the fixed frame 111, is reasonably aligned with the output end of the production line in terms of horizontality and height. The brush roller assembly 112 consists of a brush roller, bearings at both ends, and other conventional components. The brush roller drive motor 113 can drive the brush roller to rotate. When the hide is conveyed from the front production line to the surface of the brush roller, the rotating brush roller can smoothly convey the hide to the right, and the hide on the right side of the brush roller naturally hangs down. Each side of the fixed frame 111 is equipped with a set of lifting transmission assemblies 114, each set is equipped with a lifting plate. When the hide has passed about half the length of the brush roller, the control system sends a signal, and the lifting motor 115 drives the lifting transmission assembly 114 (generally using chain drive or belt drive) to move upward. The lifting plate on it will... Figure 4 The drying rod 4 shown (the leather has been removed from the picture for easier viewing) is raised at both ends. The lifting plate of the lifting transmission assembly 114 is located on the outside of the two transmission plates 125 in the axial direction, so it will not collide with the transmission plates 125 during the lifting process.

[0037] Figure 3 and Figure 4 The image shows the drying rod 4 lifting the cowhide and moving it upwards together until it reaches the position of the top push cylinder 116. Before the drying rod and the cowhide reach the designated position at the top (near the push cylinder), the piston of the push cylinder 116 is in a retracted state. After the drying rod and the cowhide are lifted to the push position of the push cylinder, the piston of the push cylinder 116 can extend, pushing the drying rod and the cowhide forward and onto the frame of the rear structure 2.

[0038] The above embodiments explain that the drying poles smoothly pull the cowhides from the production line and are responsible for lifting the cowhides with the drying poles and then raising them to a designated height. The following is an explanation and description of the pole feeding component 12, which can realize the functions of storing and raising the drying poles, and outputting the drying poles one by one from the top of the pole storage mechanism and delivering them to the designated position as needed.

[0039] The feeding rod component 12 includes a movable frame 121, which contains a rod storage mechanism. A drying rod lifting motor 122 is installed on both sides of the movable frame. The drying rod lifting motor drives the lifting bending plate 129 to move vertically through the drying rod lifting screw 123. The lifting bending plate is located at both ends of the rod storage mechanism to lift the drying rod 4 inside the rod storage mechanism. A feeding rod cylinder 124 is installed on the side of the rod storage mechanism. A transfer plate 125 is provided at the end of the feeding rod cylinder. The transfer plate is located behind the brush roller assembly, so that the drying rod on the transfer plate is hidden inside the circumference of the brush roller, ensuring that when the cowhide falls from the brush roller, it can fall from the outside of the drying rod.

[0040] The movable frame has a frame structure, and is mounted on a pair of linear guide rails 126 via a pair of sliders. The linear guide rails are respectively installed and fixed on both sides of the frame. The rod storage mechanism forms a rod slot 131 through two sets of drying rod storage racks 127. The top of one side of the drying rod storage rack has a sloping structure 130, which makes it easy for the uppermost drying rod to flip forward out of the placement slot.

[0041] The movable frame 121 is a frame made of square tubing, with two sliders mounted on its lower part. Each slider is fitted onto one of two linear guide rails 126, which are mounted on either side of the fixed frame 111. A similar connection exists between the upper part of the movable frame 121 and the fixed frame 111. This connection allows the movable frame and the fixed frame to move horizontally relative to each other, and their relative positions can be adjusted as needed.

[0042] The drying rack 127 is an independently movable frame with two sets of vertical square tubes forming a swing rod slot 131. The drying rods are placed in the slot of the swing rod mechanism in advance. The swing rod slot 131 is similar to a magazine in a gun. A batch of drying rods can be loaded into the swing rod slot 131 by a separate special auxiliary tool. The swing rod slot 131 stores a sufficient number of drying rods vertically. To ensure that the drying rods do not fall off from one end during operation, all drying rods must be of the same length with a length error of less than 50 mm. When placed in the swing rod slot, both ends should be basically neat to reduce errors in subsequent operations.

[0043] The two ends of the swing rod slot 131 are provided with drying rod lifting plates 129, which are installed on the drying rod lifting screw 123. During operation, the lifting plates 129 are at the lowest point of all the drying rods. The drying rod lifting motor 122 drives the drying rod lifting screw 123 to rotate, and the lifting plates 129 rise linearly, thus lifting all the drying rods in the swing rod slot 131 upwards. The upward ejection amount each time is given by the control system and is approximately equal to the height of one drying rod diameter. The uppermost drying rod touches the upper inclined structure 130. Due to the guiding effect of the inclined surface, the uppermost drying rod flips forward out of the placement slot 131 and falls onto the transmission plate 125 of the rod feeding mechanism. Then, the lifting plate of the lifting transmission assembly 114 lifts the drying rod on the transmission plate 125 upwards. The subsequent process is detailed in the lifting cowhide mechanism 11 in the above embodiment.

[0044] At that time, the drying rack fell onto the frame of rear structure 2, thus entering the rear structure. Figure 6 and 7 As shown, the rear structure is functionally divided into an upper mechanism and a lower mechanism. The upper mechanism includes a load-bearing frame 21, a conveyor belt assembly 22, a conveyor belt drive motor 23, and a conveyor scraper 24. The lower mechanism includes a rear fixed frame 25 and a lifting cylinder 26.

[0045] There are two sets of load-bearing frames 21, which are used to support the two ends of the drying poles (carrying cowhides) that are being transported. Each set of load-bearing frames 21 is made of two steel plates with a gap in the middle. A conveyor belt assembly 22 is installed in the gap. A conventional conveyor belt or chain drive assembly can be used. Two conveyor belt drive motors 23 are installed on both sides of the rear end of the upper mechanism. The two conveyor belt drive motors 23 are servo motors to achieve synchronous transmission. A conveyor scraper 24 is installed on the conveyor belt assembly 22. When the upper surface of the conveyor belt moves backward, the two sets of conveyor scrapers 24 on both sides move accordingly, which can move the drying pole to the designated position. When hanging, there is a set interval distance between each hide.

[0046] The lower end of the rear fixed frame 25 of the lower mechanism is installed on the ground. The rear fixed frame 25 can be installed independently, and their relative positions can be determined by adjustment. Alternatively, a conventional gantry structure can be adopted to connect the rear fixed frame 25 into a whole. The cylinder bodies of the four lifting cylinders 26 are fixed on the rear fixed frame 25. The upper end of the piston rod of the lifting cylinder 26 is connected to the upper mechanism to support it. During operation, all piston rods extend upward, placing the upper mechanism in a high position. When a predetermined number of hides and drying rods are hung on the load-bearing frame 21, the upper surface of the load-bearing frame 21 is lower than the upper surface of the drying cart, and all the hides and drying rods fall on the upper surface of the drying cart.

[0047] The control system sends a command to the lifting cylinder, causing all four piston rods to retract downwards. The upper structure, along with the drying rod and hide, falls to a position below the height of the drying cart's upper frame. This height can be adjusted appropriately; the purpose is to place the drying rod and hide on the drying cart's upper frame. The upper structure continues to descend a short distance, detaching from the drying rod. After detaching from the drying rod, both the drying rod and hide are placed on the drying cart. Figure 8 As shown), the drying cart starts, moves to the left, removes the drying cart from this hanging system, and replaces it with the next blank drying cart.

[0048] The drying cart described above is a device currently used in production for hanging and drying cowhides. When hanging them manually, each drying pole (generally a hollow metal tube with an outer diameter of approximately 25mm) lifts one cowhide, which is then placed at intervals on the two frame beams at the top of the drying cart (the ends of the drying poles rest on the side frame beams of the drying cart). A cowhide is placed every few centimeters, the specific distance of which is set by the user as needed. This invention uses the basic method of this drying cart, but the standard configuration includes an AGV (Automated Guided Vehicle), commonly used in automated factories. It has an automatic guidance and driving system; its specific structure will not be described in detail here. This electric AGV can automatically drive into and out of the work area, or it can continue to be manually pushed.

[0049] The above descriptions are all preferred embodiments of the present invention. For those skilled in the art, any modifications to the present invention in various equivalent forms without departing from the principle of the present invention shall fall within the protection scope of the appended claims.

Claims

1. A genuine leather conveying and hanging device, characterized in that: The hanging device consists of a front structure, a rear structure, and a drying cart. The front structure smoothly receives the cowhides from the production line and lifts the drying poles holding the cowhides to a designated height. The storage, separation, and conveying of the drying poles are completed by the front structure. The rear structure receives the drying poles and cowhides from the front structure and moves them together to a designated location. After the rated number of drying poles and cowhides have been placed, they are lowered onto the drying cart and transported out by the drying cart.

2. The genuine leather conveying and hanging device according to claim 1, characterized in that: The front structure consists of a leather lifting mechanism and a rod feeding component; The lifting mechanism for cowhide includes a fixed frame, on which a brush roller drive motor and a brush roller assembly are mounted. Lifting transmission assemblies are mounted on both sides of the fixed frame. The lifting transmission assemblies are equipped with lifting plates. The lifting motor drives the lifting transmission assemblies to move up and down. Pushing cylinders are mounted on both sides of the upper end of the fixed frame. The rod feeding component includes a movable frame with a rod storage mechanism inside. A drying rod lifting motor is installed on both sides of the movable frame. The drying rod lifting motor drives the lifting bending plate to move vertically through the drying rod lifting screw. The lifting bending plate is located at both ends of the rod storage mechanism to lift the drying rod inside the rod storage mechanism. A rod feeding cylinder is installed on the side of the rod storage mechanism, and a transfer plate is provided at the end of the rod feeding cylinder.

3. The genuine leather conveying and hanging device according to claim 2, characterized in that: The transfer plate is located behind the brush roller assembly, so that the drying rod on the transfer plate is hidden inside the circumference of the brush roller, ensuring that when the cowhide hangs down from the brush roller, it can fall from the outside of the drying rod.

4. The genuine leather conveying and hanging device according to claim 2, characterized in that: The movable frame has a frame structure, and is mounted on a pair of linear guides via a pair of sliders at the bottom. The linear guides are respectively mounted on the two sides of the frame.

5. The genuine leather conveying and hanging device according to claim 2, characterized in that: The storage mechanism forms a swing rod slot through two sets of drying rod storage racks. The top of one side of the drying rod storage rack has a sloping structure, which makes it easy for the uppermost drying rod to flip forward and be placed in the slot.

6. The genuine leather conveying and hanging device according to claim 1, characterized in that: The rear structure is composed of an upper component and a lower component. The upper component is raised and lowered by several cylinders, and a drying cart is located in the middle of the lower component.

7. The genuine leather conveying and hanging device according to claim 6, characterized in that: The upper structure includes a load-bearing frame, within which a conveyor belt assembly is arranged. The conveyor belt assembly is equipped with a conveyor scraper and is driven by a motor installed at the rear end of the load-bearing frame.

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