Nine-station leather cover pressing and forming device with cold pressing die assembly and use method

Abstract

This invention relates to the field of leather sleeve pressing equipment technology, and more particularly to a nine-station leather sleeve pressing and forming device with a cold pressing module and its usage method. The device includes a frame with a rotating feeding disc mounted on it. A base material cutting and conveying unit, a sheet material separating and conveying unit, a fabric cutting and conveying unit, and a hot melt paper cutting and conveying unit are sequentially arranged on the outer side of the frame. A pressing and cutting unit is bolted to the top of the frame, and a collecting unit is installed on the pressing and cutting unit. The pressing and cutting unit includes a control box with a reinforcing rod fixedly mounted on one side. A beam frame is provided inside the control box, and a pressing and cutting assembly is installed in the beam frame. In this invention, three synchronously working pressing and cutting assemblies are used to simultaneously press and cut multiple stacked raw material groups, solving the problem of frequent start-ups and shutdowns caused by insufficient workstations and the inability to process only one group in traditional equipment. This significantly reduces equipment wear and defect rate.

Description

Technical Field

[0001] This invention relates to the field of leather sleeve pressing equipment technology, specifically a nine-station leather sleeve pressing molding device with a cold pressing module and its usage method. Background Technology

[0002] A case is a protective accessory specifically designed for various devices, such as smartphones, tablets, laptops, and other mobile devices. People often use cases to reduce the risk of scratches and bumps when carrying or using these devices in daily life, thereby extending the lifespan of these devices.

[0003] Existing leather case production is usually carried out through leather case pressing machines. Some leather case pressing machines can even integrate the functions of automatic conveying, automatic pressing, automatic punching and automatic edge trimming of each layer of leather case material into one, thereby realizing fully automatic pressing production of leather cases and greatly improving the degree of automation and production efficiency of leather cases.

[0004] However, most current leather sleeve pressing machines are limited by the number of workstations and can only press and punch-cut single stacked materials one by one. They cannot temporarily gather and buffer multiple intact sets to be pressed and then simultaneously press and cut multiple sets after a certain number have been reached. This will increase equipment wear and tear due to frequent start-ups and shutdowns of the pressing and cutting equipment, leading to a higher defect rate. Therefore, in order to address the above problems, a nine-station leather sleeve pressing and forming device with a cold pressing module and its usage method are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a nine-station leather sleeve pressing and molding device with a cold pressing module and a method of using it, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A nine-station leather case pressing and forming device with a cold pressing module includes a frame with a rotary feeding disc mounted on it. A base material cutting and conveying unit, a sheet material separating and conveying unit, a fabric cutting and conveying unit, and a hot melt paper cutting and conveying unit are sequentially arranged on the outer side of the frame. A pressing and cutting unit is bolted to the top of the frame. A collecting unit is mounted on the pressing and cutting unit. The pressing and cutting unit includes a control box with a reinforcing rod fixedly mounted on one side. A beam frame is provided inside the control box, and a pressing and cutting assembly is installed in the beam frame. The pressing and cutting assembly includes... The system includes a stabilizing bar and a fixing frame. A lower pressure plate is fixedly connected to the bottom end of the stabilizing bar, and a punching pressure plate is installed at the bottom end of the lower pressure plate. A lower pressure cylinder is installed in the fixing frame. The collecting unit includes a guide rail, on which a lifting device is slidably mounted. A connecting frame is slidably mounted on one side of the lifting device, and a collecting tray is fixedly connected to the bottom end of the connecting frame. Multiple edge material spreading mechanisms are installed on the collecting tray. The rotating feeding disc is an annular turntable structure with nine operating positions evenly distributed along the circumference, with a central angle of 40° between adjacent operating positions. As a further optimization of the present invention, the base material cutting and conveying unit, the board material separating and conveying unit, the fabric cutting and conveying unit, and the hot melt paper cutting and conveying unit are sequentially matched with one operating station on the rotating feeding plate in a clockwise direction.

[0007] As a further optimization of the present invention, the pressing and cutting group is provided in three groups, which are distributed sequentially along the axial direction of the beam frame, and the three pressing and cutting groups correspond to one operating station on the rotating feeding plate.

[0008] As a further optimization of the present invention, the end of the reinforcing rod away from the control box is fixed to the frame by bolts, and a portion of the rotating feeding disc is disposed in the beam frame, and the bottom surface of this portion is in contact with the beam frame to form a sliding fit.

[0009] As a further optimization of the present invention, the stabilizer bar and the fixing frame are both fixed to the beam frame, and the stabilizer bar can reciprocate along its own axial direction.

[0010] As a further optimization of the present invention, the output shaft of the pressing cylinder passes through the fixing frame and is fixed to the pressing plate, the included angle between the output shaft of the pressing cylinder and the pressing plate is 90°, and the pressing plate and the punching plate are parallel to each other.

[0011] As a further optimization of the present invention, a cutting blade is installed at the bottom edge of the punching plate, and the top view of the punching plate is the same size as the top view of the operating station on the rotating feeder.

[0012] As a further optimization of the present invention, the collection unit is located at the operating station between the bottom material cutting and conveying unit and the pressing and cutting unit of the rotating feeding plate, and a plurality of suction cups parallel to each other are installed at the bottom of the collection plate.

[0013] As a further optimization of the present invention, the edge material spreading mechanism is equipped with spreading claws, and two sets of edge material spreading mechanisms are respectively provided, with the two sets of edge material spreading mechanisms symmetrically distributed on the edge of the collecting tray.

[0014] How to use a nine-station leather sleeve pressing and molding device with a cold pressing module: Step 1: Material preparation before leather case production: First, place the base material cutting and conveying unit, the board material separating and conveying unit, the fabric cutting and conveying unit, and the hot melt paper cutting and conveying unit on the outside of the frame. Then, place the base material, board material, fabric material, and hot melt paper required for leather case production into the corresponding feeding positions in the base material cutting and conveying unit, board material separating and conveying unit, fabric cutting and conveying unit, and hot melt paper cutting and conveying unit. Step 2: The conveying and processing of raw materials required for leather case production by the base material cutting and conveying unit, the board material separating and conveying unit, the fabric cutting and conveying unit, and the hot melt paper cutting and conveying unit: The rotating feeder is controlled by the frame to rotate intermittently. In the initial stage before the rotating feeder rotates intermittently, the base material cutting and conveying unit cuts the leather case base material and transfers the cut base material to the corresponding operating station on the rotating feeder. Then, the rotating feeder rotates intermittently once, and the board material separating and conveying unit sends the board material required for leather case production to the operating station containing the cut leather case base material. Then, the rotating feeder rotates intermittently once, and the fabric cutting and conveying unit conveys the fabric material required for leather case production to the operating station containing the base material and board material. Then, the rotating feeder rotates intermittently again, and the hot melt paper cutting and conveying unit transfers the hot melt paper required for leather case production to the operating station containing the base material, board material, and fabric material. Then, the rotating feeder continues to rotate intermittently without interruption. Step 3: Pressing and cutting unit presses and punches the raw material for the sleeve: After the four layers of raw material are stacked into a group, the raw material group is checked when passing through an unobstructed empty station as the rotating feeder rotates intermittently. After the verification is correct, the rotating feeder continues to rotate intermittently, and the raw material group is transferred to the beam frame at a uniform speed. After the control box on the outside of the beam frame detects that the three groups of raw material groups are stacked correctly in the beam frame, it controls the pressing and cutting unit to press and punch the raw material group. First, the lower pressure cylinder moves and drives the lower pressure plate to move downward. The lower pressure plate drives the punching plate to press the bottom material, plate material, top material and hot melt paper of the raw material group in the beam frame together to form the initial sleeve. At the same time, the initial sleeve pressed together is punched once. Then the stabilizer rod retracts and resets, driving the lower pressure plate to reset. Step 4: The collection unit removes edge material and collects the initial leather sleeves: The lifting device controls the connecting frame to slide downwards, allowing the suction cups installed at the bottom of the collection tray to adsorb the initial leather sleeves. Then, the lifting device controls the connecting frame to move the collection tray upwards, adsorbing the initial leather sleeves from the operating position of the rotating feeding tray. At this time, the guide rail runs, causing the lifting device to slide on it, moving the initial leather sleeves from above the rotating feeding tray to above the collection box or collection bag that is set up in advance next to the machine frame. Then, the spreading claws installed on the edge material spreading mechanism open outwards under the action of the driving element in the edge material spreading mechanism, using the spreading force to separate the edge material remaining at the edge of the initial leather sleeve from the finished leather sleeve, so that the edge material falls into the waste collection box on the side of the collection box or collection bag under its own gravity.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by setting up nine operating stations evenly distributed along the circumference, and matching the base material cutting and conveying, board material splitting and conveying, fabric cutting and conveying, and hot melt paper cutting and conveying units in a clockwise direction, the automatic layering and stacking of multi-layer raw materials is realized. At the same time, with the cooperation of three sets of synchronously working pressing and cutting groups, the multiple stacked raw material groups are synchronously pressed and cut, which solves the problem of frequent start-up and shutdown of traditional equipment due to insufficient work stations and only single-group processing, and significantly reduces equipment wear and defect rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation position of the rotary feeder of the present invention; Figure 3 This is a schematic diagram of the installation position structure of the pressing and cutting unit of the present invention; Figure 4 This is a schematic diagram of the pressing and cutting unit structure of the present invention; Figure 5 This is a schematic diagram of the installation location of the collection unit of the present invention; Figure 6 This is a schematic diagram of the installation position of the pressing and cutting assembly of the present invention; Figure 7 This is a schematic diagram of the collection unit structure of the present invention; Figure 8 This is a schematic diagram of the pressing and cutting assembly structure of the present invention.

[0017] In the diagram: 1. Frame; 2. Rotary feeding tray; 3. Base material cutting and conveying unit; 4. Sheet material separating and conveying unit; 5. Fabric cutting and conveying unit; 6. Hot melt paper cutting and conveying unit; 7. Pressing and cutting unit; 71. Control box; 72. Reinforcing rod; 73. Beam frame; 74. Pressing and cutting assembly; 741. Stabilizing rod; 742. Lower pressure plate; 743. Punching pressure plate; 744. Fixing frame; 745. Lower pressure cylinder; 8. Collection unit; 81. Guide rail; 82. Lifter; 83. Connecting frame; 84. Collection tray; 85. Edge material spreading mechanism. Detailed Implementation

[0018] Please see Figures 1-8 The present invention provides a technical solution: A nine-station leather sleeve pressing and forming device with a cold pressing module and its usage method include a frame 1, on which a rotary feeding disc 2 is installed. A base material cutting and conveying unit 3, a sheet material separating and conveying unit 4, a fabric cutting and conveying unit 5, and a hot melt paper cutting and conveying unit 6 are sequentially arranged on the outer side of the frame 1. A pressing and cutting unit 7 is bolted to the top of the frame 1. A collecting unit 8 is installed on the pressing and cutting unit 7. The pressing and cutting unit 7 includes a control box 71. A reinforcing rod 72 is fixedly installed on one side of the control box 71. A beam frame 73 is provided inside the control box 71. A pressing and cutting assembly 74 is installed in the beam frame 73. The pressing and cutting assembly 74 includes a stabilizing rod. 741 and a fixed frame 744, a lower pressure plate 742 is fixedly connected to the bottom end of the stabilizer 741, a punching pressure plate 743 is installed at the bottom end of the lower pressure plate 742, a lower pressure cylinder 745 is installed in the fixed frame 744, the collecting unit 8 includes a guide rail 81, a lifter 82 is slidably arranged on the guide rail 81, a connecting frame 83 is slidably installed on one side of the lifter 82, a collecting tray 84 is fixedly connected to the bottom end of the connecting frame 83, and multiple edge material spreading mechanisms 85 are installed on the collecting tray 84, the rotary feeding tray 2 is an annular turntable structure, the rotary feeding tray 2 is provided with nine operating positions, and the nine operating positions are evenly distributed along the circumference, with the central angle between adjacent operating positions being 40°. As a further implementation of this solution, the base material cutting and conveying unit 3, the board material separating and conveying unit 4, the fabric cutting and conveying unit 5, and the hot melt paper cutting and conveying unit 6 are sequentially matched with one operating station on the rotary feeding tray 2 in a clockwise direction. This arrangement enables each raw material to be accurately delivered to the operating station of the rotary feeding tray 2, realizing the orderly layered conveying and stacking of base material, board material, fabric material, and hot melt paper, avoiding stacking deviations caused by misaligned material conveying. At the same time, in conjunction with the intermittent rotation of the rotary feeding tray 2, the continuous connection of each process is realized, greatly improving the automation continuity of leather case production and reducing errors caused by manual intervention.

[0019] As a further implementation of this solution, the pressing and cutting group 74 is provided in three sets. The three pressing and cutting groups 74 are distributed sequentially along the axial direction of the beam frame 73, and each of the three pressing and cutting groups 74 corresponds to an operating station on the rotary feeding plate 2. The three pressing and cutting groups 74 work synchronously, and can simultaneously press and punch the three sets of raw materials on the rotary feeding plate 2. This solves the problems of traditional equipment that can only process one set at a time and has high equipment wear and high defect rate caused by frequent start and stop, and significantly improves the pressing and cutting efficiency.

[0020] As a further implementation of this solution, the end of the reinforcing rod 72 away from the control box 71 is fixed to the frame 1 by bolts. A portion of the rotating feeding disc 2 is set in the beam frame 73, and the bottom surface of this portion is in contact with the beam frame 73 to form a sliding fit. The reinforcing rod 72 can effectively enhance the connection stability between the control box 71 and the frame 1, and prevent the control box 71 from shifting due to equipment vibration during the operation of the device. The bottom surface of the rotating feeding disc 2 is in contact with the beam frame 73 in a sliding fit, providing stable support and guidance for the rotating feeding disc 2.

[0021] As a further implementation of this solution, both the stabilizer bar 741 and the fixing frame 744 are fixed to the beam frame 73. The stabilizer bar 741 can reciprocate along its own axis, and the fixing frame 744 provides a stable installation support for the pressing cylinder 745 to prevent the pressing cylinder 745 from shaking during operation and to ensure uniform pressing force. The stabilizer bar 741 can extend and retract synchronously with the pressing plate 742, which guides and stabilizes the up and down movement of the pressing plate 742 and prevents the pressing plate 742 from shifting, causing the punching plate 743 to be misaligned with the operating position.

[0022] As a further implementation of this solution, the output shaft of the pressing cylinder 745 passes through the fixing frame 744 and is fixed to the pressing plate 742. The included angle between the output shaft of the pressing cylinder 745 and the pressing plate 742 is 90°. The pressing plate 742 and the punching plate 743 are parallel to each other. The output shaft of the pressing cylinder 745 is perpendicularly connected to the pressing plate 742, which can ensure that the downward pressure acts perpendicularly on the pressing plate 742, avoiding problems such as loose pressing and material delamination caused by skewed force. The pressing plate 742 and the punching plate 743 are set in parallel, which can make the pressing force of the punching plate 743 on the material group evenly distributed, while ensuring that the cutting blade is subjected to consistent force during the punching process, improving the pressing quality and punching regularity of the initial leather sleeve, and reducing defects such as edge burrs and loose pressing.

[0023] As a further implementation of this solution, a cutter is installed at the bottom edge of the punching plate 743. The top view of the punching plate 743 is the same size as the top view of the operating station on the rotary feeder 2. The matching of the shape of the punching plate 743 and the operating station can ensure that the cutter can accurately cover the edge of the raw material group, realize one-time punching and forming, and avoid punching size deviation.

[0024] As a further implementation of this solution, the collection unit 8 is set at the operating station between the bottom material cutting and conveying unit 3 and the pressing and cutting unit 7 on the rotating feeding tray 2. The bottom of the collection tray 84 is equipped with multiple suction cups that are parallel to each other. By setting the collection unit 8 at the station after the pressing and cutting unit 7 and before the next round of bottom material cutting and conveying unit 3, and by adopting the design of multiple parallel suction cups, the initial leather sleeve after pressing and punching can be stably and reliably adsorbed and gripped, avoiding product deformation or falling that may be caused by single-point adsorption.

[0025] As a further implementation of this solution, the edge material spreading mechanism 85 is equipped with spreading claws. There are two sets of edge material spreading mechanisms 85, which are symmetrically distributed on the edge of the collection tray 84. By symmetrically setting two sets of edge material spreading mechanisms 85 with spreading claws on the edge of the collection tray 84, after the leather case is adsorbed and transported to the collection position, the symmetrical spreading force can be used to separate the edge material remaining on the edge of the initial leather case from the finished leather case, realizing the automatic waste removal function and ensuring that the edge of the finished leather case is smooth and clean, without the need for additional manual trimming process.

[0026] Workflow: First, the base material cutting and conveying unit 3, the board material separating and conveying unit 4, the fabric cutting and conveying unit 5, and the hot melt paper cutting and conveying unit 6 are respectively placed on the outside of the frame 1, so that the base material cutting and conveying unit 3, the board material separating and conveying unit 4, the fabric cutting and conveying unit 5, and the hot melt paper cutting and conveying unit 6 are sequentially matched with one operating position on the rotating feeder 2 in a clockwise direction. Then, the base material, board material, fabric material, and hot melt paper required for leather case production are respectively placed in the corresponding feeding positions of the base material cutting and conveying unit 3, the board material separating and conveying unit 4, the fabric cutting and conveying unit 5, and the hot melt paper cutting and conveying unit 6. The frame 1 controls the rotating feeder 2 to perform intermittent indexing rotation. In the initial stage before the rotating feeder 2 rotates intermittently, the base material cutting and conveying unit is controlled to... The cutting and conveying unit 3 cuts the leather case base material and transfers the cut base material to the corresponding operating station on the rotary feeder 2. Then, the rotary feeder 2 rotates intermittently once. The board material transfer unit 4 delivers the board material required for leather case production to the operating station containing the cut leather case base material. Next, the rotary feeder 2 rotates intermittently once more. The fabric cutting and conveying unit 5 delivers the fabric material required for leather case production to the operating station containing the base material and board material. Then, the rotary feeder 2 rotates intermittently again. The hot melt paper cutting and conveying unit 6 delivers the hot melt paper required for leather case production to the operating station containing the base material, board material, and fabric material. Then, the rotary feeder 2 continues to rotate intermittently without interruption. After the four layers of raw materials are stacked in layers, they are fed by the rotary feeder. As the feed tray 2 rotates intermittently, it verifies the raw material group when passing through an unobstructed empty workstation. After verification, the feed tray 2 continues to rotate intermittently, and the raw material group is transferred smoothly and evenly to the beam frame 73. After the control box 71 on the outside of the beam frame 73 detects that the three sets of raw material groups are stacked correctly in the beam frame 73, it controls the pressing and cutting group 74 to press and punch the raw material group. First, the lower pressing cylinder 745 moves and drives the lower pressing plate 742 to move downward. The lower pressing plate 742 drives the punching plate 743 to press the bottom material, plate material, surface material, and hot melt paper of the raw material group in the beam frame 73 together to form a preliminary product sleeve. At the same time, the pressed preliminary product sleeve is punched once. Then, the stabilizer bar 741 retracts and resets, driving the lower pressing plate 742 to reset, and the lifting and lowering... Device 82 controls the connecting frame 83 to slide downwards, causing the suction cups installed at the bottom of the collection tray 84 to adsorb the initial leather sleeve. Then, the lifting device 82 controls the connecting frame 83 to move the collection tray 84 upwards, adsorbing the initial leather sleeve from the operating position of the rotating feeding tray 2. At this time, the guide rail 81 runs, causing the lifting device 82 to slide on it, moving the initial leather sleeve from above the rotating feeding tray 2 to above the collection box or collection bag that is set up next to the frame 1. Then, the spreading claws installed on the edge material spreading mechanism 85 open outwards under the action of the driving element in the edge material spreading mechanism 85, using the spreading force to separate the edge material remaining at the edge of the initial leather sleeve from the finished leather sleeve, so that the edge material falls into the waste collection box on the side of the collection box or collection bag under its own gravity.

[0027] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A nine-station leather sleeve pressing and molding device with a cold pressing module, comprising a frame (1), characterized in that: A rotating feeding tray (2) is installed on the frame (1). The outer side of the frame (1) is arranged in sequence with a base material cutting and conveying unit (3), a board material separating and conveying unit (4), a fabric cutting and conveying unit (5), and a hot melt paper cutting and conveying unit (6). The top of the frame (1) is fixedly connected to a pressing and cutting unit (7) by bolts. The pressing and cutting unit (7) is equipped with a collection unit (8). The pressing and cutting unit (7) includes a control box (71). A reinforcing rod (72) is fixedly installed on one side of the control box (71). A beam frame (73) is provided inside the control box (71). A pressing and cutting assembly (74) is installed in the beam frame (73). The pressing and cutting assembly (74) includes a stabilizing rod (741) and a fixing frame (744). A lower pressure plate (742) is fixedly connected to the bottom end of the stabilizing rod (741). A punching pressure plate (743) is installed at the bottom end of the lower pressure plate (742). A lower pressure cylinder (745) is installed in the fixing frame (744). The collection unit (8) includes a guide rail (81), on which a lifter (82) is slidably mounted. A connecting frame (83) is slidably mounted on one side of the lifter (82). A collection tray (84) is fixedly connected to the bottom of the connecting frame (83). Multiple edge material spreading mechanisms (85) are installed on the collection tray (84). The rotating feeding tray (2) is an annular turntable structure. Nine operating positions are provided on the rotating feeding tray (2), and the nine operating positions are evenly distributed along the circumference. The central angle between adjacent operating positions is 40°.

2. The nine-station leather sleeve pressing and forming device with a cold pressing module according to claim 1, characterized in that: The base material cutting and conveying unit (3), the board material separating and conveying unit (4), the fabric cutting and conveying unit (5), and the hot melt paper cutting and conveying unit (6) are sequentially matched with one operating station on the rotating feeding tray (2) in a clockwise direction.

3. The nine-station leather sleeve pressing and forming device with a cold pressing module according to claim 1, characterized in that: The pressing and cutting group (74) is provided in three groups. The three pressing and cutting groups (74) are distributed sequentially along the axial direction of the beam frame (73), and the three pressing and cutting groups (74) correspond to one operating station on the rotating feeding plate (2).

4. The nine-station leather sleeve pressing and forming device with a cold pressing module according to claim 1, characterized in that: The end of the reinforcing rod (72) away from the control box (71) is fixed to the frame (1) by bolts. A part of the rotating feeding plate (2) is set in the beam frame (73), and the bottom surface of this part is in contact with the beam frame (73) to form a sliding fit.

5. A nine-station leather sleeve pressing and forming device with a cold pressing module according to claim 1, characterized in that: The stabilizer bar (741) and the fixing frame (744) are both fixed to the beam frame (73), and the stabilizer bar (741) can reciprocate along its own axis.

6. A nine-station sleeve pressing and forming device with a cold pressing module according to claim 1, characterized in that: The output shaft of the pressing cylinder (745) passes through the fixing frame (744) and is fixed to the pressing plate (742). The included angle between the output shaft of the pressing cylinder (745) and the pressing plate (742) is 90°. The pressing plate (742) and the punching plate (743) are parallel to each other.

7. A nine-station leather sleeve pressing and forming device with a cold pressing module according to claim 1, characterized in that: A cutter is installed at the bottom edge of the punching plate (743), and the top view of the punching plate (743) is the same size as the top view of the operating station on the rotating feeder (2).

8. A nine-station leather sleeve pressing and forming device with a cold pressing module according to claim 1, characterized in that: The collection unit (8) is located at the operating station between the bottom material cutting and conveying unit (3) and the pressing and cutting unit (7) on the rotating feeding plate (2). The bottom of the collection plate (84) is equipped with multiple suction cups that are parallel to each other.

9. A nine-station leather sleeve pressing and forming device with a cold pressing module according to claim 1, characterized in that: The edge material spreading mechanism (85) is equipped with spreading claws. There are two sets of edge material spreading mechanisms (85), and the two sets of edge material spreading mechanisms (85) are symmetrically distributed on the edge of the collection tray (84).

10. A method of using a nine-station leather sleeve pressing and molding device with a cold pressing module as described in any one of claims 1-9, characterized in that: S1: Material preparation before leather case production: First, place the bottom material cutting and conveying unit (3), board material separating and conveying unit (4), fabric cutting and conveying unit (5) and hot melt paper cutting and conveying unit (6) on the outside of the frame (1), so that the bottom material cutting and conveying unit (3), board material separating and conveying unit (4), fabric cutting and conveying unit (5) and hot melt paper cutting and conveying unit (6) are matched with one operating position on the rotating feeding tray (2) in a clockwise direction. Then, place the bottom material, board material, fabric and hot melt paper required for leather case production in the corresponding feeding positions of the bottom material cutting and conveying unit (3), board material separating and conveying unit (4), fabric cutting and conveying unit (5) and hot melt paper cutting and conveying unit (6). S2: The bottom material cutting and conveying unit (3), the board material separating and conveying unit (4), the fabric cutting and conveying unit (5), and the hot melt paper cutting and conveying unit (6) transport and process the raw materials required for the production of the leather case: The rotating feeder (2) is controlled by the frame (1) to perform intermittent indexing rotation. In the initial stage before the rotating feeder (2) rotates intermittently, the bottom material cutting and conveying unit (3) is controlled to cut the bottom material of the leather case and transfer the cut bottom material to the corresponding operating station on the rotating feeder (2). Then the rotating feeder (2) performs one intermittent rotation. The board material conveying unit (4) delivers the board material required for leather case production to the operating station containing the cut leather case base material. Then, the feeding tray (2) rotates intermittently once. The fabric cutting and conveying unit (5) delivers the fabric required for leather case production to the operating station containing the base material and board material. Then, the feeding tray (2) rotates intermittently once more. The hot melt paper cutting and conveying unit (6) transfers the hot melt paper required for leather case production to the operating station containing the base material, board material, and fabric material. Then, the feeding tray (2) rotates intermittently continuously. S3: Pressing and cutting unit (7) presses and punches the leather material: After the four layers of material are stacked into a group, as the rotating feeder (2) rotates intermittently, when passing through an unobstructed empty station, the material group is checked. After the check is correct, the rotating feeder (2) continues to rotate intermittently, and the material group is transferred to the beam frame (73) at a uniform speed and smoothly with the rotating feeder (2). The control box (71) on the outside of the beam frame (73) detects that the three groups of correctly stacked raw materials in the beam frame (73) are in the beam frame (73). After the material group is formed, the pressing and cutting group (74) will press and punch the material group. First, the lower pressing cylinder (745) will move the lower pressing plate (742) downward. The lower pressing plate (742) will drive the punching plate (743) to press the bottom material, plate material, fabric material and hot melt paper of the material group in the beam frame (73) together to form the initial product sleeve. At the same time, the initial product sleeve pressed together will be punched once. Then the stabilizer rod (741) will retract and reset, driving the lower pressing plate (742) to reset. S4: The collection unit (8) removes edge material and collects the initial leather sleeve: The lifting device (82) controls the connecting frame (83) to slide downward, so that the suction cup installed at the bottom of the collection tray (84) can adsorb the initial leather sleeve. Then the lifting device (82) controls the connecting frame (83) to drive the collection tray (84) to move upward, so that the initial leather sleeve can be adsorbed from the operating position of the rotating feeding tray (2). At this time, the guide rail (81) runs and drives the lifting device (82) to slide on it, so that the initial leather sleeve can be moved from above the rotating feeding tray (2) to the collection box or collection bag that is set in advance next to the frame (1). Then, the spreading claw installed on the edge material spreading mechanism (85) opens outward under the action of the driving element in the edge material spreading mechanism (85), and uses the spreading force to separate the edge material remaining on the edge of the initial leather sleeve from the finished leather sleeve, so that the edge material falls into the waste collection box on the side of the collection box or collection bag under its own gravity.

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