A printing press for shoe uppers

Abstract

This utility model relates to the field of shoe upper printing technology and discloses a printing machine for shoe uppers, including a frame, a conveying mechanism, a printing mechanism, a drying mechanism, and a cooling mechanism. The conveying mechanism is mounted on the frame; the printing mechanism is mounted on the frame; the drying mechanism is mounted on the frame; the drying mechanism includes a baking oven and a drying module; the baking oven is located above the conveying mechanism, and both ends of the baking oven are equipped with louvers; a humidity sensor is provided on the input end of the baking oven; the drying module is located in the center of the baking oven; a first temperature sensor is provided on the baking oven corresponding to the drying module. By setting up the drying and cooling mechanisms, the shoe uppers can be quickly dried and cooled immediately after printing. Furthermore, by integrating the drying and cooling mechanisms at the end of the printing machine, the printing, drying, and cooling of shoe uppers can be integrated into a single production process, eliminating the need for additional drying space, optimizing the spatial layout of the production line, and improving space utilization.

Description

Technical Field

[0001] This utility model relates to the field of shoe upper printing technology, and in particular to a printing machine for shoe uppers. Background Technology

[0002] Printing on shoe uppers is a step in the shoe manufacturing process. It usually involves printing distinctive patterns or text in a prominent position on the shoe upper, which is beneficial for the sale and promotion of the shoes after they are finished.

[0003] Currently, most shoe upper printing uses printing presses to print patterns or text onto the shoe upper, and then the upper is placed on a rack to air dry naturally for subsequent production processing. However, the air drying method has a long drying time, and the drying time for a single layer of ink can be as long as several hours, causing the production line to stop and resulting in low overall efficiency. In addition, a large number of racks need to be placed during the drying process, which takes up a certain amount of space.

[0004] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a printing machine for shoe uppers.

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

[0007] A printing machine for shoe uppers includes a frame, a conveying mechanism, a printing mechanism, a drying mechanism, and a cooling mechanism. The conveying mechanism is mounted on the frame and is used to convey the shoe upper along the extension direction of the frame. The printing mechanism is mounted on the frame and located to one side of the conveying mechanism, and is used for printing on the shoe upper. The drying mechanism is mounted on the frame and located to one side of the printing mechanism, and is used for drying the shoe upper after printing. The drying mechanism includes a baking oven and a drying module. The baking oven is located above the conveying mechanism, and both ends of the baking oven along the extension direction of the frame are provided with louvers. A humidity sensor for detecting the humidity of the shoe upper is provided at the input end of the baking oven, and the humidity sensor is electrically connected to the drying module. The drying module is located in the center of the baking oven. A first temperature sensor for temperature monitoring is provided on the baking oven corresponding to the drying module, and the first temperature sensor is electrically connected to the drying module. The cooling mechanism is mounted on the frame and located to one side of the drying mechanism, and is used for cooling the shoe upper after drying.

[0008] As further explained, the humidity sensor is provided with a first insulating sleeve on its outer side; a temperature insulation zone is formed between the first insulating sleeve and the oven, and the humidity sensor is located within the temperature insulation zone.

[0009] As further explained, the drying module includes an exhaust fan and at least one set of drying sleeves; the exhaust fan is located at the top of the baking oven; the drying sleeve is located inside the first insulating sleeve and a first gap is left between it and the first insulating sleeve; the exhaust fan and the drying sleeve are connected by a connecting hose.

[0010] As further explained, a fixing frame is provided between the two ends of the drying sleeve and the baking oven; the fixing frame is provided with an adjustment groove vertically, and the adjustment groove is provided with multiple sets of fixing parts extending in the horizontal direction; a fixing rod is provided between the drying sleeve and the fixing parts; the end of the fixing rod away from the baking oven passes through the fixing part and is threaded with a locking nut; the locking nut is provided with a snap-fit ​​part for tightly connecting with the fixing frame on the side near the fixing frame.

[0011] As further explained, the cooling mechanism includes a cooling box and at least one cooling module; the cooling box is located above the transmission mechanism; a second insulating sleeve is provided on the input end of the cooling box, and a second temperature sensor for temperature monitoring is provided inside the second insulating sleeve; the cooling module is located on the top of the cooling box.

[0012] As further explained, the cooling module includes a water-cooled plate, a fixed frame, and a fan; the fixed frame is located inside the cooling tank, and a second gap is left between the fixed frame and the water-cooled plate; the water-cooled plate is located within the second gap, and one side of the water-cooled plate has an inlet for coolant entry and an outlet for coolant discharge; the water-cooled plate has a serpentine flow channel, and the input end and output end of the flow channel are tightly connected to the inlet and outlet, respectively; the fan is located at the bottom of the fixed frame, and a filter screen is provided between the fan and the fixed frame.

[0013] As further explained, the printing mechanism includes a Z-axis moving module and an X-axis moving module. The Z-axis moving module is mounted on the frame and located outside the transmission mechanism. The X-axis moving module is movably mounted on the Z-axis moving module and is equipped with a printing component and a screen printing component for printing on shoe uppers.

[0014] As further explained, the printing assembly includes a printing mounting base; the printing mounting base is provided with two sets of symmetrically distributed first lifting units, one set of the first lifting units is provided with a squeegee, and the other set of the first lifting units is provided with a return ink blade; each set of the first lifting units controls the squeegee and the return ink blade to move upward or downward, so as to make the squeegee and the return ink blade move closer to or further away from the screen module.

[0015] As further explained, the wire mesh assembly includes a mounting frame; both ends of the mounting frame are movably connected to both ends of the X-axis moving module via a second lifting unit, the second lifting unit is located at one end of the X-axis moving module, and a U-shaped frame is fixedly connected to the output end of the second lifting unit, the open end of the U-shaped frame passes through the X-axis moving module and is fixedly connected to one end of the mounting frame; two sets of symmetrically distributed clamping blocks for fixing the wire mesh are provided inside the mounting frame; the clamping blocks are provided with locking bolts for vertically fixing the wire mesh.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] 1. By setting up drying and cooling mechanisms, the shoe uppers can be quickly dried and cooled immediately after printing. Compared with natural air drying, the drying time is significantly shortened, avoiding production line stagnation caused by long drying times. Furthermore, by integrating the drying and cooling mechanisms at the end of the printing press, the printing, drying, and cooling of the shoe uppers can be integrated into one process, eliminating the need for additional drying space, optimizing the spatial layout of the production line, and improving space utilization.

[0018] 2. By setting up a drying module, the printed shoe upper can be dried quickly. At the same time, by setting up humidity sensors and a first temperature sensor, the humidity and drying temperature of the shoe upper can be monitored in real time, ensuring precise control of the drying process, significantly shortening the drying time, avoiding the drying process of several hours required for a single layer of ink, and thus greatly improving production efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of a printing press for shoe uppers provided by this utility model;

[0021] Figure 2 A schematic diagram of the overall structure of the printing mechanism provided by this utility model;

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

[0023] Figure 4 A schematic diagram of the overall structure of the drying mechanism provided by this utility model;

[0024] Figure 5 A schematic diagram of the internal structure of the drying mechanism provided by this utility model;

[0025] Figure 6 A schematic diagram of the internal structure of the cooling mechanism provided by this utility model;

[0026] Figure 7 This is a schematic diagram of the overall structure of the cooling module provided by this utility model.

[0027] The following are the labeling elements in the figure:

[0028] 10. Rack; 11. Transmission mechanism;

[0029] 20. Printing mechanism; 21. Z-axis moving module; 22. X-axis moving module; 231. Printing mounting base; 232. First lifting unit; 233. Doctor blade; 234. Ink return blade; 241. Mounting frame; 242. Second lifting unit; 243. U-shaped frame; 244. Clamping block; 245. Locking bolt;

[0030] 30. Drying mechanism; 31. Baking oven; 321. Exhaust fan; 322. Drying sleeve; 33. Louver; 34. Humidity sensor; 35. First temperature sensor; 36. First insulating sleeve; 37. Fixing frame; 371. Adjustment groove; 38. Locking nut;

[0031] 40. Cooling mechanism; 41. Cooling box; 42. Second temperature sensor; 43. Second insulating sleeve; 44. Water-cooled plate; 45. Fixing frame; 46. Fan. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] In one embodiment of this utility model, such as Figure 1-7 As shown, a printing machine for shoe uppers is provided, including a frame 10, a conveying mechanism 11, a printing mechanism 20, a drying mechanism 30, and a cooling mechanism 40. The conveying mechanism 11 is mounted on the frame 10 and is used to convey the shoe upper along the extending direction of the frame 10. The printing mechanism 20 is mounted on the frame 10 and located to one side of the conveying mechanism 11, and is used for printing on the shoe upper. The drying mechanism 30 is mounted on the frame 10 and located to one side of the printing mechanism 20, and is used for drying the printed shoe upper. The drying mechanism 30 includes a baking oven and a drying module. The baking oven is located above the conveying mechanism 11, and both ends of the baking oven along the extending direction of the frame 10 are provided with louvers 33. A humidity sensor 34 for detecting the humidity of the shoe upper is provided at the input end of the baking oven, and the humidity sensor 34 is electrically connected to the drying module. The drying module is located in the center of the baking oven. A first temperature sensor 35 for temperature monitoring is provided on the baking oven 31 corresponding to the drying module, and the first temperature sensor 35 is electrically connected to the drying module.

[0038] The cooling mechanism 40 is mounted on the frame 10 and located on one side of the drying mechanism 30, and is used to cool the shoe upper after drying.

[0039] In this embodiment, the humidity sensor 34 can be a capacitive humidity sensor, such as the HIH-4000 series, and the first temperature sensor 35 can preferably be a K-type thermocouple or a PT100 platinum resistance thermometer. Their specific placement is determined based on actual conditions to avoid interference from the drying module. Both sensors convert the humidity and temperature signals into electrical signals via a microcontroller (MCU), and compare them against preset humidity and temperature thresholds. Based on the comparison results, the drying module's temperature is fine-tuned to improve the drying effect on the shoe upper.

[0040] In this embodiment, the transmission mechanism 11 can be a transmission belt. The shoe upper is transported through the transmission mechanism 11 to realize automatic loading and unloading of the shoe upper, thereby improving the production efficiency of shoe upper printing.

[0041] By setting up a drying mechanism 30 and a cooling mechanism 40, the shoe upper can be quickly dried and cooled immediately after printing. Compared with natural air drying, the drying time is significantly shortened, avoiding production line stagnation caused by long drying time. Furthermore, by integrating the drying mechanism 30 and the cooling mechanism 40 at the end of the printing press, the printing, drying, and cooling of the shoe upper can be integrated into one production process, eliminating the need for additional drying space, optimizing the spatial layout of the production line, and improving space utilization.

[0042] By setting up a drying module, the printed shoe upper can be dried quickly. At the same time, by setting up a humidity sensor 34 and a first temperature sensor 35, the humidity and drying temperature of the shoe upper can be monitored in real time, ensuring precise control of the drying process, significantly shortening the drying time, avoiding the drying process of a single layer of ink that requires several hours, and thus greatly improving production efficiency.

[0043] Preferably, a first insulating sleeve 36 is provided on the outside of the humidity sensor 34. A temperature-insulating zone is formed between the first insulating sleeve 36 and the baking oven, and the humidity sensor 34 is located within this zone. In this embodiment, the first insulating sleeve 36 is made of silicone rubber, which can withstand a wide temperature range, such as -60℃ to +240℃. By providing the first insulating sleeve 36, hot air inside the baking oven is prevented from contaminating the detection environment of the humidity sensor 34, effectively improving the detection accuracy of the humidity sensor 34.

[0044] Furthermore, the drying module includes an exhaust fan 321 and at least one set of drying sleeves 322. The exhaust fan 321 is located at the top of the drying chamber 31. The drying sleeves 322 are located inside the first insulating sleeve 36, with a first gap between them. The exhaust fan 321 and the drying sleeves 322 are connected via a connecting hose. In this embodiment, at least one set of heating tubes is electrically connected inside the drying sleeves 322. The heating tubes are electrically connected to a humidity sensor 34 and a first temperature sensor 35, respectively. The controller MCU receives signals from the humidity sensor 34 and the first temperature sensor 35, and fine-tunes the drying temperature of the heating tubes based on the feedback signals, thereby improving the drying effect of the shoe upper.

[0045] Furthermore, a fixing frame 37 is provided between both ends of the drying sleeve 322 and the baking oven 31. The fixing frame 37 has a vertically arranged adjustment groove 371, and multiple sets of fixing parts extending horizontally are provided on the adjustment groove 371. A fixing rod is provided between the drying sleeve 322 and the fixing parts. The end of the fixing rod away from the baking oven 31 passes through the fixing part and is threadedly connected to a locking nut 38. The locking nut 38 has a snap-fit ​​part near the fixing frame 37 for tight connection with the fixing frame 37; the snap-fit ​​part is made of phenyl silicone rubber. By providing the adjustment groove 371, the position and height of the drying sleeve 322 can be adjusted as needed, ensuring a relatively reasonable drying distance between the drying sleeve 322 and the shoe upper to accommodate different sizes of shoe uppers. Simultaneously, by providing the locking nut 38, tightening the locking nut 38 ensures that its bottom snap-fit ​​part fits tightly with the fixing part of the adjustment groove 371, further improving the stability of the drying sleeve 322 on the fixing frame 37.

[0046] Preferably, the cooling mechanism 40 includes a cooling box 41 and at least one cooling module. The cooling box 41 is located above the transmission mechanism 11. A second insulating sleeve 43 is provided on the input end of the cooling box 41, and a second temperature sensor 42 for temperature monitoring is provided inside the second insulating sleeve 43. The second temperature sensor 42 can be a K-type thermocouple or a PT100 platinum resistance thermometer. The cooling module is located at the top of the cooling box 41. By setting the cooling module, the dried shoe upper can be cooled quickly, effectively shortening the cooling time of the shoe upper and thus improving the production time of the shoe upper.

[0047] In this embodiment, the second insulating sleeve 43 is made of silicone rubber, which can withstand a wide temperature range, such as -60℃ to +240℃. By setting the second insulating sleeve 43, the cold air generated by the cooling module is prevented from contaminating the detection environment of the second temperature sensor 42, effectively improving the detection accuracy of the second temperature sensor 42.

[0048] Specifically, the cooling module includes a water-cooled plate 44, a mounting frame 45, and a fan 46. The mounting frame 45 is located inside the cooling tank 41, with a second gap between the mounting frame 45 and the cooling tank. The water-cooled plate 44 is located within the second gap, and one side of the water-cooled plate 44 has an inlet for coolant entry and an outlet for coolant discharge. The water-cooled plate 44 has a serpentine flow channel (not shown in the figure), and the input and output ends of the flow channel are tightly connected to the inlet and outlet, respectively. The fan 46 is located at the bottom of the mounting frame 45, and a filter screen is provided between the fan 46 and the mounting frame 45. In this embodiment, the water-cooled plate 44 is connected to an external cooling device. The external cooling device draws coolant from the inlet of the water-cooled plate 44 into the flow channel. The air inside the fixed frame 45 exchanges heat with the coolant, and the fan 46 blows cold air onto the dried shoe surface, thus achieving rapid cooling of the shoe surface. At the same time, the coolant after heat exchange is discharged back to the external cooling device through the outlet, thus realizing the recycling of the coolant and effectively reducing production costs.

[0049] Preferably, the printing mechanism 20 includes a Z-axis moving module 21 and an X-axis moving module 22. The Z-axis moving module 21 is mounted on the frame 10 and located outside the transmission mechanism 11. The X-axis moving module 22 is movably mounted on the Z-axis moving module 21 and is equipped with a printing component and a screen printing component for printing on the shoe upper. In this embodiment, both the Z-axis moving module 21 and the X-axis moving module 22 are linear moving modules. During shoe upper printing, the Z-axis moving module 21 moves the screen printing component downwards and presses the shoe upper against the printing station. Then, the X-axis moving module 22 drives the printing component to move horizontally, thereby achieving the printing of the shoe upper. Conversely, the Z-axis moving module 21 drives the screen printing component upwards, moving the screen printing component away from the shoe upper to facilitate subsequent printing on the shoe upper.

[0050] Furthermore, the printing assembly includes a printing mounting base 231. The printing mounting base 231 is equipped with two symmetrically distributed first lifting units 232, each a cylinder. One set of first lifting units 232 is equipped with a doctor blade 233, and the other set is equipped with a return ink blade 234. Each set of first lifting units 232 controls the doctor blade 233 and the return ink blade 234 to move upwards or downwards, thereby moving the doctor blade 233 and the return ink blade 234 closer to or further away from the screen printing module. During printing, the first lifting unit 232 and the squeegee 233 approach the screen assembly. Driven by the X-axis moving module 22, the squeegee 233 prints the pattern on the shoe upper. After printing, the first lifting unit 232 lifts the squeegee 233 upward. At this time, the first lifting unit 232 drives the ink return blade 234 downward and resets under the drive of the X-axis moving module 22. That is, the ink return blade 234 recovers and resets the excess ink to facilitate subsequent printing on the shoe upper.

[0051] Furthermore, the wire mesh assembly includes a mounting frame 241. Both ends of the mounting frame 241 are movably connected to both ends of the X-axis moving module 22 via a second lifting unit 242. The second lifting unit 242 is located at one end of the X-axis moving module 22 and is a cylinder. A U-shaped frame 243 is fixedly connected to the output end of the second lifting unit 242. The open end of the U-shaped frame 243 passes through the X-axis moving module 22 and is fixedly connected to one end of the mounting frame 241. The mounting frame 241 contains two sets of symmetrically distributed clamping blocks 244 for fixing the wire mesh. Each clamping block 244 has locking bolts 245 for vertically fixing the wire mesh. By tightening or loosening the locking bolts 245, operators can easily fix or disassemble the wire mesh for replacement.

[0052] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A printer for use with an upper, characterized by, include: frame; A transmission mechanism, which is mounted on the frame, is used to transmit the shoe upper along the extension direction of the frame; A printing mechanism, which is mounted on the frame and located on one side of the transmission mechanism, is used for printing on the shoe upper; A drying mechanism is provided, mounted on the frame and located on one side of the printing mechanism, for drying the printed shoe uppers. The drying mechanism includes a baking oven and a drying module. The baking oven is positioned above the conveying mechanism, and louvers are provided at both ends of the baking oven along the extension direction of the frame. A humidity sensor for detecting the humidity of the shoe upper is provided at the input end of the baking oven, and the humidity sensor is electrically connected to the drying module. The drying module is located in the center of the baking oven. A first temperature sensor for temperature monitoring is provided on the baking oven corresponding to the drying module, and the first temperature sensor is electrically connected to the drying module. A cooling mechanism is provided on the frame and located on one side of the drying mechanism, and is used to cool the shoe upper after drying.

2. The printing machine for shoe uppers according to claim 1, characterized in that, The humidity sensor is provided with a first insulating sleeve on its outer side; a temperature insulation zone is formed between the first insulating sleeve and the oven, and the humidity sensor is located within the temperature insulation zone.

3. The printing machine for shoe uppers according to claim 2, characterized in that, The drying module includes an exhaust fan and at least one set of drying sleeves; the exhaust fan is located at the top of the baking oven; the drying sleeve is located inside the first insulating sleeve and a first gap is left between it and the first insulating sleeve; the exhaust fan and the drying sleeve are connected by a connecting hose.

4. The printing press for shoe uppers according to claim 3, characterized in that, The drying sleeve is provided with a fixing frame between its two ends and the baking oven; the fixing frame is provided with a vertical adjustment groove, and the adjustment groove is provided with multiple sets of fixing parts extending in the horizontal direction; a fixing rod is provided between the drying sleeve and the fixing parts; the end of the fixing rod away from the baking oven passes through the fixing part and is threaded with a locking nut; the locking nut is provided with a snap-fit ​​part for tight connection with the fixing frame on the side near the fixing frame.

5. The printing machine for shoe uppers according to claim 1, characterized in that, The cooling mechanism includes a cooling box and at least one cooling module; the cooling box is located above the transmission mechanism; a second insulating sleeve is provided on the input end of the cooling box, and a second temperature sensor for temperature monitoring is provided inside the second insulating sleeve; the cooling module is located on the top of the cooling box.

6. The printing press for shoe uppers according to claim 5, characterized in that, The cooling module includes a water-cooled plate, a fixed frame, and a fan; the fixed frame is located inside the cooling tank, and a second gap is left between the fixed frame and the water-cooled plate; the water-cooled plate is located within the second gap, and one side of the water-cooled plate has an inlet for coolant entry and an outlet for coolant discharge; the water-cooled plate has a serpentine flow channel, and the input end and output end of the flow channel are tightly connected to the inlet and outlet, respectively; the fan is located at the bottom of the fixed frame, and a filter screen is provided between the fan and the fixed frame.

7. The printing press for shoe uppers according to claim 1, characterized in that, The printing mechanism includes a Z-axis moving module and an X-axis moving module. The Z-axis moving module is mounted on the frame and located outside the transmission mechanism. The X-axis moving module is movably mounted on the Z-axis moving module and is equipped with a printing component and a screen printing component for printing on shoe uppers.

8. The printing press for shoe uppers according to claim 7, characterized in that, The printing assembly includes a printing mounting base; the printing mounting base is provided with two sets of symmetrically distributed first lifting units, one set of the first lifting units is provided with a squeegee, and the other set of the first lifting units is provided with a return ink blade; each set of the first lifting units controls the squeegee and the return ink blade to move upward or downward, so as to make the squeegee and the return ink blade move closer to or further away from the screen module.

9. The printing press for shoe uppers according to claim 7 or 8, characterized in that, The wire mesh assembly includes a mounting frame; both ends of the mounting frame are movably connected to both ends of the X-axis moving module via a second lifting unit. The second lifting unit is located at one end of the X-axis moving module, and a U-shaped frame is fixedly connected to the output end of the second lifting unit. The open end of the U-shaped frame passes through the X-axis moving module and is fixedly connected to one end of the mounting frame. Two sets of symmetrically distributed clamping blocks for fixing the wire mesh are provided inside the mounting frame. The clamping blocks are provided with locking bolts for vertically fixing the wire mesh.

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