Vacuum type hot plate machine

Abstract

The utility model discloses a vacuum type hot plate machine, which belongs to the technical field of vamp processing, and solves the problem that the existing hot plate machine can be used for quickly cooling and finishing the hot pressing processing of leather vamps by aiming at a plurality of groups of molds. Comprising a bottom frame, a portal frame fixedly connected to the bottom frame, a hot-pressing assembly and a cold-pressing assembly which are arranged on the portal frame and can ascend and descend, a supporting frame set fixedly connected to the bottom frame and located below the hot-pressing assembly and the cold-pressing assembly, and a first-stage vacuum plate, a second-stage vacuum plate and a third-stage vacuum plate which can ascend and descend and move on the supporting frame set. The supporting frame set is provided with a waiting station, a cold pressing station right opposite to the cold pressing assembly and a hot pressing station right opposite to the hot pressing assembly. When the device is operated, the leather vamp is placed in the mold, then the mold is closed and adsorbed on the vacuum plate. The motor drives the belt pulley to rotate, and the transmission belt drives the direction adjusting assembly to move to achieve station circulation. The mold is clamped, heated and cooled through the hot-pressing assembly and the cold-pressing assembly, and the forming procedure is completed.

Description

Technical Field

[0001] This utility model relates to the field of shoe upper processing technology, and in particular to a vacuum hot plate machine. Background Technology

[0002] Modern footwear typically consists of core components such as the sole, tongue, and upper. In footwear manufacturing, the sole can be divided into a durable outsole, a cushioned midsole, and an insole that contacts the foot. The tongue stabilizes the ankle and enhances comfort. The upper, as the main body of the shoe, requires three-dimensional processing based on the design requirements. During production, the originally flat leather upper undergoes hot pressing or molding to precisely press outward-convex curves (such as the rounded outline of the toe) or concave surfaces (such as the tapered shape at the heel). This process is customized based on the three-dimensional structure of the shoe design. Strict control of temperature, pressure, and time parameters is required during molding to ensure the leather fibers maintain their resilience during shaping. The result is a three-dimensional upper that combines aesthetically pleasing curves with a comfortable fit, laying the foundation for subsequent upper and sole assembly processes while giving the shoe a sleek silhouette and practical functionality.

[0003] To achieve the above actions, a hot press is usually used to process the leather shoe upper, creating corresponding shapes and textures for subsequent processing. However, currently, when using a hot press, only one set of leather shoe uppers in a mold can be hot-pressed at a time. The operator can only open the mold and remove the leather shoe upper after the hot pressing is complete and the mold is removed from the hot press, and then place the next set of leather shoe uppers. This is inefficient, and because the mold is not cooled, protective measures must be taken to avoid burns when touching it. In addition, because the mold is not cooled, the leather shoe uppers must be placed accurately the first time, otherwise the temperature of the mold can easily leave marks. Therefore, current hot plate machines need to be able to simultaneously achieve rapid cooling and complete the hot pressing processing of leather shoe uppers for multiple sets of molds.

[0004] Therefore, a vacuum hot plate machine is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a vacuum hot plate machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vacuum hot plate machine includes a base frame, a gantry frame fixedly connected to the base frame, a hot pressing assembly and a cold pressing assembly that can be raised and lowered on the gantry frame, a support frame assembly fixedly connected to the base frame and located below the hot pressing assembly and the cold pressing assembly, and a primary vacuum plate, a secondary vacuum plate, and a tertiary vacuum plate that can be raised, lowered, and displaced on the support frame assembly. The support frame assembly has a waiting station, a cold pressing station facing the cold pressing assembly, and a hot pressing station facing the hot pressing assembly. Initially, the primary vacuum plate and the secondary vacuum plate... The first-level vacuum plate corresponds to the waiting station, the cold pressing station, and the hot pressing station, respectively. In the working state, the first-level vacuum plate circulates in a cycle according to the waiting station, the hot pressing station, and the cold pressing station, and the second-level vacuum plate and the third-level vacuum plate follow the first-level vacuum plate in sequence. The first-level vacuum plate, the second-level vacuum plate, and the third-level vacuum plate are used to generate negative pressure on the placed mold. The hot pressing component applies instantaneous heat and pressure to the mold on the hot pressing station, and the cold pressing component applies cooling and pressure to the mold on the cold pressing station.

[0008] Preferably, the support frame assembly includes a front support frame, a middle support frame facing the cold pressing assembly, and a rear support frame facing the hot pressing assembly, arranged in sequence. The middle support frame and the rear support frame are each provided with a lower horizontal plate that can be buffered and raised, a heat insulation plate fixedly connected to the top surface of the lower horizontal plate, and a lower temperature regulating plate fixedly connected to the top surface of the heat insulation plate. The lower temperature regulating plate located above the rear support frame is used for heating, and the lower temperature regulating plate located above the middle support frame is used for cooling.

[0009] Preferably, the outer rings of the middle support frame and the rear support frame are fixedly connected to mounting bases, the mounting bases are fixedly connected to linear bearings, the linear bearings are slidably connected to a lower horizontal column, the upper end of the lower horizontal column is fixedly connected to the bottom surface of the lower horizontal plate, and the outer ring of the lower horizontal column is fitted with a compression spring that abuts against the bottom surface of the lower horizontal plate and the linear bearing.

[0010] Preferably, the cold pressing assembly includes a cold pressing cylinder fixedly connected to the gantry frame, a cold pressing level adjusting plate fixedly connected to the piston rod in the cold pressing cylinder, a cold pressing pressure plate fixedly connected below the cold pressing level adjusting plate, and a cold pressing plate fixedly connected to the bottom surface of the cold pressing pressure plate. The cold pressing plate is used to connect the refrigerant. The hot pressing assembly includes a hot pressing cylinder fixedly connected to the gantry frame, a hot pressing level adjusting plate fixedly connected to the piston rod in the hot pressing cylinder, a hot pressing pressure plate fixedly connected below the hot pressing level adjusting plate, and a hot pressing plate fixedly connected to the bottom surface of the hot pressing pressure plate. The hot pressing plate is used for heat exchange with heat sources inside or entering the interior.

[0011] Preferably, the base frame is provided with an outer orientation adjustment component, a middle orientation adjustment component, and an inner orientation adjustment component arranged sequentially from the outside to the inside on both sides of the support frame assembly. The first-stage vacuum plate, the second-stage vacuum plate, and the third-stage vacuum plate are respectively installed on the movable ends of the outer orientation adjustment component, the middle orientation adjustment component, and the inner orientation adjustment component to realize the lifting and lowering of the height direction and the sequential circulation of the workstations. The front and rear ends of the base frame are respectively provided with a front mounting slot and a rear mounting slot. The rear mounting slot and the front mounting slot are respectively provided with an active transmission component and a driven transmission component that are connected to each other. The active transmission component and the driven transmission component are mutually driven by several transmission belts to guide the outer orientation adjustment component, the middle orientation adjustment component, and the inner orientation adjustment component to realize the sequential circulation of the workstations.

[0012] Preferably, the external orientation adjustment assembly includes an outer rail fixedly connected to the base frame, an outer cylinder fixing plate slidably connected to the outer rail, and an outer cylinder vertically fixedly connected to the outer cylinder fixing plate. The piston rods of the outer cylinders on both sides are fixedly connected to a primary platform frame. The primary vacuum plate is installed inside the primary platform frame. The outer cylinder fixing plate is fixedly connected to one of the transmission belts through an outer synchronous belt fastening plate.

[0013] Preferably, the center position adjustment assembly includes a center rail fixedly connected to the base frame, a first track and a second track located on both sides of the center rail, a lower cylinder fixing plate slidably connected to the center rail and located between the first track and the second track, a first-stage cylinder fixedly connected to the lower cylinder fixing plate, an upper cylinder fixing plate fixedly connected to the piston rod of the lower cylinder and located between the first track and the second track, and a second-stage cylinder fixedly connected to the upper cylinder fixing plate. The piston rods of the two second-stage cylinders are jointly fixedly connected to a second-stage platform frame. The second-stage vacuum plate is installed inside the second-stage platform frame. The lower cylinder fixing plate is fixedly connected to one of the transmission belts through a timing belt fastening plate.

[0014] Preferably, the inner orientation adjustment assembly includes an inner rail fixedly connected to the base frame, an inner cylinder fixing plate slidably connected to the inner rail, and an inner cylinder vertically fixedly connected to the inner cylinder fixing plate. A three-stage platform frame is fixedly connected to the piston rod of the inner cylinder on both sides through a buffer mounting sleeve. The three-stage vacuum plate is installed in the three-stage platform frame. The inner cylinder fixing plate is fixedly connected to one of the transmission belts through an inner synchronous belt fastening plate.

[0015] Preferably, the driven transmission assembly includes a front shaft rotatably connected to the front mounting slot via a front bearing housing, an outer driven pulley, a middle driven pulley, and an inner driven pulley mounted on the front shaft, wherein the outer driven pulley, the middle driven pulley, and the inner driven pulley are used for transmission connection with a drive belt.

[0016] Preferably, the active transmission assembly includes a primary rear shaft, a secondary rear shaft, and a tertiary rear shaft rotatably connected to the rear mounting slot via a rear bearing housing; a primary geared motor, a secondary geared motor, and a tertiary geared motor fixedly connected to the base frame and located below the primary, secondary, and tertiary rear shafts, respectively; the primary, secondary, and tertiary geared motors are respectively connected to the primary, secondary, and tertiary rear shafts for transmission; an outer main pulley, a middle main pulley, and an inner main pulley are respectively fixedly connected to the primary, secondary, and tertiary rear shafts for transmission with a transmission belt.

[0017] This utility model has the following beneficial effects:

[0018] In operation, the leather shoe upper is placed in the mold, then the mold is closed and adhered to the vacuum plate. A motor drives a pulley to rotate, and a transmission belt moves the orientation adjustment components, enabling the workstation to rotate. The mold is then clamped and heated by hot and cold pressing components, and then cooled to complete the molding process. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention after removing the outer shell;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the present invention after removing the outer shell, gantry frame, first-stage cylinder and second-stage cylinder;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 This is an exploded view of the present invention after removing the outer shell, gantry frame, first-stage cylinder, and second-stage cylinder.

[0026] Figure 7This utility model includes a schematic diagram of the base frame, outer orientation adjustment component, middle orientation adjustment component, and inner orientation adjustment component.

[0027] Figure 8 for Figure 7 A magnified view of point C in the middle.

[0028] In the diagram: 1. Base frame; 101. Rear mounting slot; 102. Front mounting slot; 2. Outer casing; 3. Gantry frame; 4. Cold press cylinder; 401. Cold press leveling plate; 402. Cold press pressure plate; 403. Cold press plate; 5. Hot press cylinder; 501. Hot press leveling plate; 502. Hot press pressure plate; 503. Heating plate; 6. Front support frame; 7. Middle support frame; 8. Rear support frame; 801. Mounting base; 802. Linear bearing; 803. Drainage. 804. Horizontal plate; 805. Heat insulation plate; 806. Lower temperature regulating plate; 901. Rear bearing housing; 902. Primary rear shaft; 9021. Outer main pulley; 903. Secondary rear shaft; 9031. Middle main pulley; 904. Tertiary rear shaft; 9041. Inner main pulley; 905. Primary geared motor; 9051. Primary driven pulley; 906. Secondary geared motor; 9061. Secondary driven pulley; 907. Tertiary... Gear motor; 9071, three-stage driven pulley; 1001, front bearing housing; 1002, front shaft; 1003, outer driven pulley; 1004, middle driven pulley; 1005, inner driven pulley; 1101, outer rail; 1102, middle rail; 1103, inner rail; 1201, outer cylinder mounting plate; 1202, outer synchronous belt fastening plate; 1203, outer cylinder; 1301, middle and lower cylinder mounting plate; 1302, first-stage middle cylinder; 130 3. Upper and middle cylinder fixing plate; 1304. Secondary middle cylinder; 1305. First track; 1306. Second track; 1401. Inner cylinder fixing plate; 1402. Inner synchronous belt fastening plate; 1403. Inner cylinder; 1501. Primary platform frame; 1502. Primary vacuum plate; 1601. Secondary platform frame; 1602. Secondary vacuum plate; 1701. Tertiary platform frame; 1702. Tertiary vacuum plate; 1703. Buffer mounting sleeve. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] A vacuum hot plate machine, such as Figures 1 to 8As shown, the system includes a base frame 1, a gantry frame 3 fixedly connected to the base frame 1, an outer shell 2 fixedly connected to the base frame 1 and located outside the gantry frame 3, a hot pressing assembly and a cold pressing assembly that can be raised and lowered on the gantry frame 3, a support frame assembly fixedly connected to the base frame 1 and located below the hot pressing assembly and the cold pressing assembly, and a primary vacuum plate 1502, a secondary vacuum plate 1602, and a tertiary vacuum plate 1702 that can be raised, lowered, and displaced on the support frame assembly. The support frame assembly has a waiting station, a cold pressing station facing the cold pressing assembly, and a hot pressing station facing the hot pressing assembly. In the initial state, the primary vacuum plate 1502... The secondary vacuum plate 1602 and the tertiary vacuum plate 1702 correspond to the waiting station, the cold pressing station, and the hot pressing station, respectively. In the working state, the primary vacuum plate 1502 circulates in a cycle between the waiting station, the hot pressing station, and the cold pressing station, and the secondary vacuum plate 1602 and the tertiary vacuum plate 1702 follow the primary vacuum plate 1502 in sequence. The primary vacuum plate 1502, the secondary vacuum plate 1602, and the tertiary vacuum plate 1702 are used to generate negative pressure on the placed mold. The hot pressing component applies instantaneous heat and pressure to the mold on the hot pressing station, and the cold pressing component applies cooling and pressure to the mold on the cold pressing station.

[0036] It should be noted that the first-stage vacuum plate 1502, the second-stage vacuum plate 1602, and the third-stage vacuum plate 1702 are all hollow structures, and micropores communicating with the interior are opened on the top surface of the first-stage vacuum plate 1502, the second-stage vacuum plate 1602, and the third-stage vacuum plate 1702. The first-stage vacuum plate 1502, the second-stage vacuum plate 1602, and the third-stage vacuum plate 1702 are all connected to the vacuum machine to generate negative pressure.

[0037] The support frame assembly includes a front support frame 6, a middle support frame 7 facing the cold pressing assembly, and a rear support frame 8 facing the hot pressing assembly, arranged sequentially. Both the middle support frame 7 and the rear support frame 8 are equipped with a buffer-liftable lower horizontal plate 804, a heat insulation plate 805 fixedly connected to the top surface of the lower horizontal plate 804, and a lower temperature regulating plate 806 fixedly connected to the top surface of the heat insulation plate 805. The lower temperature regulating plate 806 located above the rear support frame 8 is used for heating, and the lower temperature regulating plate 806 located above the middle support frame 7 is used for cooling. Specifically, the lower temperature regulating plate 806 located above the rear support frame 8... The 06 is equipped with an induction heating wire or a hot plate that connects to a steam boiler, while the lower temperature regulating plate 806 located above the middle support frame 7 connects to a refrigeration unit. Specifically, the outer rings of the middle support frame 7 and the rear support frame 8 are fixedly connected to a mounting base 801, and a linear bearing 802 is fixedly connected to the mounting base 801. A lower horizontal column 803 is slidably connected inside the linear bearing 802. The upper end of the lower horizontal column 803 is fixedly connected to the bottom surface of the lower horizontal plate 804, and the outer ring of the lower horizontal column 803 is fitted with a compression spring that abuts against the bottom surface of the lower horizontal plate 804 and the linear bearing 802.

[0038] like Figure 1 and Figure 2As shown, the cold pressing assembly includes a cold pressing cylinder 4 fixedly connected to the gantry 3, a cold pressing level adjusting plate 401 fixedly connected to the piston rod in the cold pressing cylinder 4, a cold pressing pressure plate 402 fixedly connected below the cold pressing level adjusting plate 401, and a cold pressing plate 403 fixedly connected to the bottom surface of the cold pressing pressure plate 402. The cold pressing plate 403 is used to connect to the refrigerant, specifically, for example, the cold pressing plate 403 is connected to a refrigeration unit. The hot pressing assembly includes a hot pressing cylinder 5 fixedly connected to the gantry 3, a hot pressing level adjusting plate 501 fixedly connected to the piston rod in the hot pressing cylinder 5, a hot pressing pressure plate 502 fixedly connected below the hot pressing level adjusting plate 501, and a hot pressing plate fixedly connected to the bottom surface of the hot pressing pressure plate 502. The hot pressing plate is used for heat exchange with a heat source inside or entering the interior, specifically, for example, the hot pressing plate is provided with an induction heating wire or the hot pressing plate is connected to a steam boiler.

[0039] like Figure 7 and Figure 8 As shown, the base frame 1 is equipped with an outer orientation adjustment component, a middle orientation adjustment component, and an inner orientation adjustment component arranged sequentially from the outside to the inside on both sides of the support frame assembly. A first-stage vacuum plate 1502, a second-stage vacuum plate 1602, and a third-stage vacuum plate 1702 are respectively installed on the movable ends of the outer orientation adjustment component, the middle orientation adjustment component, and the inner orientation adjustment component to achieve height adjustment and sequential rotation of the workstations. The front and rear ends of the base frame 1 are respectively provided with a front mounting slot 102 and a rear mounting slot 101. The rear mounting slot 101 and the front mounting slot 102 are respectively provided with an active transmission component and a driven transmission component that are connected to each other. The active transmission component and the driven transmission component are mutually driven by several transmission belts to guide the outer orientation adjustment component, the middle orientation adjustment component, and the inner orientation adjustment component to achieve sequential rotation of the workstations.

[0040] like Figure 7 and Figure 8As shown, the external orientation adjustment assembly includes an outer rail 1101 fixedly connected to the base frame 1, an outer cylinder 1203 fixing plate 1201 slidably connected to the outer rail 1101, and an outer cylinder 1203 vertically fixedly connected to the outer cylinder 1203 fixing plate 1201. The piston rods of the outer cylinders 1203 on both sides are fixedly connected to the primary platform frame 1501. The primary vacuum plate 1502 is installed inside the primary platform frame 1501. The outer cylinder 1203 fixing plate 1201 is fastened to the outer synchronous belt fastening plate 1. 202 is fixedly connected to one of the transmission belts; the center position adjustment assembly includes a center rail 1102 fixedly connected to the base frame 1, a first rail 1305 and a second rail 1306 located on both sides of the center rail 1102, a middle and lower cylinder fixing plate 1301 slidably connected to the center rail 1102 and located between the first rail 1305 and the second rail 1306, a first-stage cylinder 1302 vertically fixedly connected to the middle and lower cylinder fixing plate 1301, and a piston rod fixedly connected to the middle and lower cylinder and located on the first rail 1306. 05 The upper cylinder fixing plate 1303 between the second track 1306 and the secondary cylinder 1304 vertically fixedly connected to the upper cylinder fixing plate 1303, the piston rods of the secondary cylinders 1304 on both sides are fixedly connected to the secondary platform frame 1601, the secondary vacuum plate 1602 is installed in the secondary platform frame 1601, and the lower cylinder fixing plate 1301 is fixedly connected to one of the transmission belts through the intermediate timing belt fastening plate; the inner orientation adjustment assembly includes an inner rail 1 fixedly connected to the base frame 1. 103. The inner cylinder 1403 fixing plate 1401 is slidably connected to the inner rail 1103, and the inner cylinder 1403 is vertically fixedly connected to the inner cylinder 1403 fixing plate 1401. The piston rods of the inner cylinders 1403 on both sides are fixedly connected to the three-stage platform frame 1701 through the buffer mounting sleeve 1703. The three-stage vacuum plate 1702 is installed in the three-stage platform frame 1701. The inner cylinder 1403 fixing plate 1401 is fixedly connected to one of the transmission belts through the inner synchronous belt fastening plate 1402.

[0041] like Figures 2 to 5As shown, the driven transmission assembly includes a front shaft 1002 rotatably connected to the front mounting groove 102 via a front bearing housing 1001, an outer driven pulley, a middle driven pulley 1004, and an inner driven pulley 1005 mounted on the front shaft 1002. The outer driven pulley, middle driven pulley 1004, and inner driven pulley 1005 are used for drive connection with a transmission belt. The driving transmission assembly includes a primary rear shaft 902, a secondary rear shaft 903, and a tertiary driven shaft 905 rotatably connected to the rear mounting groove 101 via a rear bearing housing 901. The rear shaft 904 is fixedly connected to the base frame 1 and located below the first-stage rear shaft 902, the second-stage rear shaft 903, and the third-stage rear shaft 904, respectively. The first-stage, second-stage, and third-stage rear shafts 905, 906, and 907 are respectively connected to the first-stage, second-stage, and third-stage rear shafts 902 and 903 for transmission. An outer main pulley 9021, a middle main pulley 9031, and an inner main pulley 9041 are fixedly connected to 904. These pulleys are used for connection with the drive belt. The rotor shafts of the first-stage reduction motor 905, the second-stage reduction motor 906, and the third-stage reduction motor 907 are coaxially fixedly connected to a first-stage drive pulley, a second-stage drive pulley, and a third-stage drive pulley, respectively. A first-stage rear shaft 902 and a second-stage rear shaft 90... The first-stage driven pulley 9051, the second-stage driven pulley 9061, and the third-stage driven pulley 9071 are respectively fixedly connected to the third-stage rear shaft 904. The first-stage driven pulley and the first-stage driven pulley 9051, the second-stage driven pulley and the second-stage driven pulley 9061, and the third-stage driven pulley and the third-stage driven pulley 9071 are all connected by short transmission belts.

[0042] When this vacuum hot plate machine is in operation, the operator only needs to place the leather shoe upper into the mold and then perform the mold closing action, placing the mold on the primary vacuum plate 1502. A negative pressure is generated in the primary vacuum plate 1502, causing the mold to be firmly adhered to it. Then, the primary reduction motor 905, secondary reduction motor 906, and tertiary reduction motor 907 drive the primary drive pulley, secondary drive pulley, and tertiary drive pulley to rotate coaxially. The primary drive pulley, secondary drive pulley, and tertiary drive pulley drive the primary driven pulley 9051, secondary driven pulley 9061, and tertiary driven pulley 9061 via a short transmission belt. 71 rotates. Since the primary driven pulley 9051, secondary driven pulley 9061, and tertiary driven pulley 9071 are fixed on the primary rear shaft 902, secondary rear shaft 903, and tertiary rear shaft 904 respectively, the primary rear shaft 902, secondary rear shaft 903, and tertiary rear shaft 904 will rotate along with the primary driven pulley 9051, secondary driven pulley 9061, and tertiary driven pulley 9071. When the primary rear shaft 902, secondary rear shaft 903, and tertiary rear shaft 904 rotate, they will drive the outer main pulley 9021, middle main pulley 9031, and inner main pulley 9041 to rotate coaxially. The outer main pulley 9021 and middle main pulley 9031... The inner main pulley 9041 engages with the outer driven pulley, the middle driven pulley 1004, and the inner driven pulley 1005, thereby driving the three sets of transmission belts to rotate. Since the transmission belts are clamped between the outer cylinder 1203 fixing plate 1201 and the outer synchronous belt fastening plate 1202, between the middle and lower cylinder fixing plate 1301 and the middle synchronous belt fastening plate, and between the inner cylinder 1403 fixing plate 1401 and the inner synchronous belt fastening plate 1402, the rotation of the transmission belts will cause the outer synchronous belt fastening plate 1202, the middle and lower cylinder fixing plate 1301, and the inner cylinder 1403 fixing plate 1401 to shift, thus completing the adjustment of the outer, middle, and inner orientation adjustment components along the length of the support frame assembly. The position adjustment causes the primary vacuum plate 1502 to cycle through the waiting station, hot pressing station, and cold pressing station. The secondary vacuum plate 1602 and tertiary vacuum plate 1702 follow the primary vacuum plate 1502 in sequence. This allows the mold holding the leather shoe upper to first reach the hot pressing station. At the hot pressing station, the hot pressing cylinder 5 moves the hot pressing horizontal adjusting plate 501, hot pressing pressure plate 502, and heating plate 503 downwards. This allows the heating plate 503, together with the lower temperature regulating plate 806 at the hot pressing station, to rapidly heat the mold, completing the hot pressing action. Then, at the cold pressing station, the cold pressing cylinder 4 moves the cold pressing horizontal adjusting plate 401, cold pressing pressure plate 402, and cold pressing plate 403 downwards.The cold pressing plate 403, together with the temperature regulating plate 806 on the cold pressing station, clamps the mold and facilitates heat exchange. This allows the mold to cool down quickly, preventing burns to operators who touch the mold due to excessive heat. It also prevents marks from forming on the leather upper when the mold remains hot during re-insertion.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum hot plate machine, characterized in that, The system includes a base frame (1), a gantry frame (3) fixedly connected to the base frame (1), a hot pressing assembly and a cold pressing assembly that can be raised and lowered on the gantry frame (3), a support frame assembly fixedly connected to the base frame (1) and located below the hot pressing assembly and the cold pressing assembly, and a primary vacuum plate (1502), a secondary vacuum plate (1602), and a tertiary vacuum plate (1702) that can be raised, lowered, and displaced on the support frame assembly. The support frame assembly has a waiting work station, a cold pressing work station facing the cold pressing assembly, and a hot pressing work station facing the hot pressing assembly. In the initial state, the primary vacuum plate (1502), the secondary vacuum plate (1602), and the tertiary vacuum plate... (1702) respectively correspond to the waiting station, cold pressing station and hot pressing station. In the working state, the first-level vacuum plate (1502) rotates in a cycle according to the waiting station, hot pressing station and cold pressing station, and the second-level vacuum plate (1602) and the third-level vacuum plate (1702) follow the first-level vacuum plate (1502) in sequence. The first-level vacuum plate (1502), the second-level vacuum plate (1602) and the third-level vacuum plate (1702) are used to generate negative pressure on the placed mold. The hot pressing component heats and pressurizes the mold on the hot pressing station, and the cold pressing component cools and pressurizes the mold on the cold pressing station.

2. The vacuum hot plate machine according to claim 1, characterized in that, The support frame assembly includes a front support frame (6), a middle support frame (7) facing the cold pressing assembly, and a rear support frame (8) facing the hot pressing assembly, arranged in sequence. The middle support frame (7) and the rear support frame (8) are each provided with a lower horizontal plate (804) that can be buffered and raised, a heat insulation plate (805) fixedly connected to the top surface of the lower horizontal plate (804), and a lower temperature regulating plate (806) fixedly connected to the top surface of the heat insulation plate (805). The lower temperature regulating plate (806) located above the rear support frame (8) is used for heating, and the lower temperature regulating plate (806) located above the middle support frame (7) is used for cooling.

3. A vacuum hot plate machine according to claim 2, characterized in that, The outer rings of the middle support frame (7) and the rear support frame (8) are fixedly connected to the mounting base (801), and the mounting base (801) is fixedly connected to the linear bearing (802). The linear bearing (802) is slidably connected to the lower horizontal column (803). The upper end of the lower horizontal column (803) is fixedly connected to the bottom surface of the lower horizontal plate (804), and the outer ring of the lower horizontal column (803) is fitted with a compression spring that abuts against the bottom surface of the lower horizontal plate (804) and the linear bearing (802).

4. A vacuum hot plate machine according to claim 1, characterized in that, The cold pressing assembly includes a cold pressing cylinder (4) fixedly connected to the gantry (3), a cold pressing level adjustment plate (401) fixedly connected to the piston rod in the cold pressing cylinder (4), a cold pressing pressure plate (402) fixedly connected below the cold pressing level adjustment plate (401), and a cold pressing plate (403) fixedly connected to the bottom surface of the cold pressing pressure plate (402). The cold pressing plate (403) is used to connect the refrigerant. The hot pressing assembly includes a hot pressing cylinder (5) fixedly connected to the gantry (3), a hot pressing level adjustment plate (501) fixedly connected to the piston rod in the hot pressing cylinder (5), a hot pressing pressure plate (502) fixedly connected below the hot pressing level adjustment plate (501), and a hot pressing plate fixedly connected to the bottom surface of the hot pressing pressure plate (502). The hot pressing plate is used for heat exchange with heat sources inside or entering the interior.

5. A vacuum hot plate machine according to claim 1, characterized in that, The base frame (1) is provided with an outer orientation adjustment component, a middle orientation adjustment component, and an inner orientation adjustment component arranged sequentially from the outside to the inside on both sides of the support frame group. The first-level vacuum plate (1502), the second-level vacuum plate (1602), and the third-level vacuum plate (1702) are respectively installed on the movable ends of the outer orientation adjustment component, the middle orientation adjustment component, and the inner orientation adjustment component to realize the lifting and lowering of the height direction and the sequential circulation of the workstation. The front and rear ends of the base frame (1) are respectively provided with a front mounting slot (102) and a rear mounting slot (101). The rear mounting slot (101) and the front mounting slot (102) are respectively provided with an active transmission component and a driven transmission component that are connected to each other. The active transmission component and the driven transmission component are mutually driven by several transmission belts to guide the outer orientation adjustment component, the middle orientation adjustment component, and the inner orientation adjustment component to realize the sequential circulation of the workstation.

6. A vacuum hot plate machine according to claim 5, characterized in that, The external orientation adjustment assembly includes an outer rail (1101) fixedly connected to the base frame (1), an outer cylinder fixing plate (1201) slidably connected to the outer rail (1101), and an outer cylinder (1203) vertically fixedly connected to the outer cylinder fixing plate (1201). The piston rods of the outer cylinders (1203) on both sides are fixedly connected to a primary platform frame (1501). The primary vacuum plate (1502) is installed inside the primary platform frame (1501). The outer cylinder fixing plate (1201) is fixedly connected to one of the transmission belts through an outer synchronous belt fastening plate (1202).

7. A vacuum hot plate machine according to claim 5, characterized in that, The mid-position adjustment assembly includes a mid-rail (1102) fixedly connected to the base frame (1), a first rail (1305) and a second rail (1306) located on both sides of the mid-rail (1102), a mid-lower cylinder fixing plate (1301) slidably connected to the mid-rail (1102) and located between the first rail (1305) and the second rail (1306), a first-stage mid-cylinder (1302) vertically fixedly connected to the mid-lower cylinder fixing plate (1301), and a piston rod fixedly connected to the mid-lower cylinder and located on the first rail. The upper cylinder fixing plate (1303) between (1305) and the second track (1306), and the secondary cylinder (1304) vertically fixed on the upper cylinder fixing plate (1303), the piston rods of the secondary cylinders (1304) on both sides are fixedly connected to the secondary platform frame (1601), the secondary vacuum plate (1602) is installed in the secondary platform frame (1601), and the lower cylinder fixing plate (1301) is fixedly connected to one of the transmission belts through the intermediate timing belt fastening plate.

8. A vacuum hot plate machine according to claim 5, characterized in that, The inner orientation adjustment assembly includes an inner rail (1103) fixedly connected to the base frame (1), an inner cylinder fixing plate (1401) slidably connected to the inner rail (1103), and an inner cylinder (1403) vertically fixedly connected to the inner cylinder fixing plate (1401). The piston rods of the inner cylinders (1403) on both sides are fixedly connected to a three-stage platform frame (1701) through a buffer mounting sleeve (1703). The three-stage vacuum plate (1702) is installed inside the three-stage platform frame (1701). The inner cylinder fixing plate (1401) is fixedly connected to one of the transmission belts through an inner synchronous belt fastening plate (1402).

9. A vacuum hot plate machine according to claim 5, characterized in that, The driven transmission assembly includes a front shaft (1002) rotatably connected to the front mounting groove (102) via a front bearing housing (1001), an outer driven pulley (1003), a middle driven pulley (1004), and an inner driven pulley (1005) mounted on the front shaft (1002). The outer driven pulley (1003), the middle driven pulley (1004), and the inner driven pulley (1005) are used for drive connection with a transmission belt.

10. A vacuum hot plate machine according to claim 9, characterized in that, The active transmission assembly includes a primary rear shaft (902), a secondary rear shaft (903), and a tertiary rear shaft (904) rotatably connected to the rear mounting slot (101) via a rear bearing housing (901); a primary geared motor (905), a secondary geared motor (906), and a tertiary geared motor (907) fixedly connected to the base frame (1) and located below the primary rear shaft (902), secondary rear shaft (903), and tertiary rear shaft (904), respectively; and the primary geared motor (905) and the secondary geared motor (906) are also mentioned. The three-stage reduction motor (907) is connected to the first-stage rear shaft (902), the second-stage rear shaft (903), and the third-stage rear shaft (904) respectively. The first-stage rear shaft (902), the second-stage rear shaft (903), and the third-stage rear shaft (904) are respectively fixedly connected to the outer main pulley (9021), the middle main pulley (9031), and the inner main pulley (9041). The outer main pulley (9021), the middle main pulley (9031), and the inner main pulley (9041) are used to connect with the transmission belt.

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