An automated shoe sole flocking production line and its working method

Abstract

This invention relates to the field of shoe sole production and processing, and particularly to an automated shoe sole flocking production line and its working method. The line includes a mesh conveyor belt, a heating device, a flocking device, an adhesive spraying device, a treatment agent spraying device, an automatic shoe sole pushing platform, a first transfer robot, a second transfer robot, and a residual flocking recovery device. A sponge suction cup fixing plate is placed on the automatic shoe sole pushing platform. The heating device covers the mesh conveyor belt, forming a semi-enclosed channel for heating and fixing the flocked shoe sole. The residual flocking recovery device is located on the mesh conveyor belt. The mesh conveyor belt has a flipping station for receiving the sponge suction cup fixing plate. This invention solves the technical problem of incomplete residual flocking recovery during drying and recovery of residual flocking after shoe sole flocking in existing automated shoe sole flocking equipment, which leads to a decline in finished product quality.

Description

Technical Field

[0001] This invention relates to the field of shoe sole production and processing, and in particular to an automated shoe sole flocking production line and its working method. Background Technology

[0002] Flocking is a process that involves attaching flocking material to the surface of the sole, primarily used to enhance the functionality and aesthetics of shoes.

[0003] Manual flocking typically presents several problems, including a harsh production environment due to the large number of workers, low production efficiency, and disjointed production processes.

[0004] Chinese patent application number 201410431585.2 discloses a shoe outsole with a fleece lining, its production equipment, and production process. Compared with the prior art, the bottom of the shoe outsole is coated with fleece by adsorption or electrostatic spraying, which not only makes it non-slip but also aesthetically pleasing, while reducing export costs. The equipment for manufacturing the fleece-lined shoe outsole is highly automated, easy to operate, saves manpower, and reduces production costs. The production process of the fleece-lined shoe outsole includes step 1) wiping or spraying a treatment agent; step 2) spraying glue; step 3) natural adsorption or electrostatic flocking; and step 4) electrostatic peeling, cleaning, and packaging. The production steps are greatly shortened, the process is simplified, and costs are saved. Moreover, the treatment agent and glue used are environmentally friendly solvents that are harmless to the human body, resulting in high production efficiency and a high yield. The technical solution proposed in the above invention uses automated equipment to replace manual labor to improve production efficiency. However, in actual application, flocked shoe soles need to be dried and the excess flock is recycled after flocking. During the excess flock recycling process, the excess flock is easily not completely recycled, which causes it to adhere to the shoe sole and affect the quality of the finished shoes. Summary of the Invention

[0005] Therefore, in view of the above problems, the present invention proposes an automated shoe sole flocking production line and its working method, which solves the technical problem that the incomplete recovery of residual flocking during the drying and residual flocking process after the existing automated shoe sole flocking equipment completes the flocking, resulting in a decline in the quality of the finished product.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automated shoe sole flocking production line, comprising a mesh conveyor belt device, a heating device, a flocking device, an adhesive spraying device, a treatment agent spraying device, an automatic shoe sole pushing platform, a first transfer robot, a second transfer robot, and a residual flocking recovery device. A sponge suction cup fixing plate is placed on the automatic shoe sole pushing platform. The first transfer robot is used to transport the sponge suction cup fixing plate from the automatic shoe sole pushing platform to the adhesive spraying device via the treatment agent spraying device. The second transfer robot is used to transport the sponge suction cup fixing plate from the adhesive spraying device to the mesh conveyor belt device via the flocking device.

[0007] The heating device is covered on the mesh conveyor belt device, forming a semi-enclosed channel for heating and fixing the shoe sole after flocking is completed. The excess flocking recycling device is set on the mesh conveyor belt device.

[0008] The mesh conveyor belt device is equipped with a flipping station for receiving the sponge suction cup fixing plate.

[0009] Furthermore, the flipping stations are arranged intermittently on the mesh conveyor belt device, and the distance between two adjacent flipping stations is the same.

[0010] Furthermore, the heating device has an inverted U-shaped structure and is installed on the mesh conveyor belt device. The heating device includes two parallel side plates and a top plate mounted on the two side plates. Heating pipes are provided on the inner side of the side plates, and a circulating fan is provided on the inner side of the top plate.

[0011] Furthermore, the circulating fan generates airflow that blows towards the side plate, the heating tubes on the side plate are arranged intermittently, and a circulating air plate is provided in the gap between two heating tubes. The circulating air plate has an arc-shaped cross-section in the vertical direction and is inclined upward.

[0012] Furthermore, the flipping station includes a support base and a telescopic support rod disposed on the support base. The telescopic support rod is driven by a motor to move up and down in the vertical direction. A rectangular slot is provided at the free end of the telescopic support rod. A rotating rod is fixedly disposed on the sponge suction cup fixing plate. The vertical cross-section of the rotating rod is a rectangular structure. When the sponge suction cup fixing plate is transported to the flipping station by the second transfer robot, the rotating rod and the rectangular slot are engaged with each other.

[0013] Furthermore, the heating device is equipped with symmetrically arranged flipping tracks on the side plate. The flipping tracks include an upper track and a lower track, both of which are driven to reciprocate by a motor. Both the upper and lower tracks have serrated surfaces. When the flipping station enters the heating device, the rotating rod is engaged in the channel between the upper and lower tracks and rotates horizontally along with the movement of the upper and lower tracks. When the rotating rod enters the flipping track, the lower track remains stationary or moves synchronously.

[0014] Furthermore, the sponge suction cup fixing plate is provided with at least four shoe sole retaining grooves, which penetrate through the sponge suction cup fixing plate.

[0015] A working method applied to an automated shoe sole flocking production line includes the following steps:

[0016] S1: Shoe sole placement; Place the shoe sole on the foam suction cup fixing plate and fix it. After fixing the shoe sole, place the foam suction cup fixing plate on the automatic shoe sole pushing platform for transportation.

[0017] S2, Treatment agent spraying; The first transfer robot arm clamps and transports the sponge suction cup fixing plate from the automatic push shoe platform to the treatment agent spraying device for treatment agent spraying;

[0018] S3, Adhesive spraying; The sponge suction cup fixing plate after the treatment agent spraying process is clamped and transported to the adhesive spraying device by the first transfer robot for adhesive spraying;

[0019] S4. Sole flocking: The sponge suction cup fixing plate after the adhesive spraying process is clamped and transported to the flocking device by the second transfer robot for sole flocking.

[0020] S5. Shoe sole drying: The sponge suction cup fixing plate after the shoe sole flocking process is completed is clamped and transported to the flipping station on the mesh conveyor belt device by the second transfer robot. The flipping station moves with the mesh conveyor belt device into the heating device for heating and drying.

[0021] S6. Excess Down Recycling: After being heated and dried, the shoe soles continue to be transported forward by the mesh conveyor belt to the excess down recycling device for excess down recycling. The excess down recycling device generates a downward negative pressure airflow.

[0022] Furthermore, in step S5, after the flipping station enters the heating device along with the mesh conveyor belt, the sponge suction cup fixing plate on the flipping station is placed on the flipping track and tumbles under the drive of the flipping track. When the sponge suction cup fixing plate is placed on the flipping track, the telescopic support rod retracts downward and rises again after the sponge suction cup fixing plate leaves the heating device to engage with the rotating rod of the sponge suction cup fixing plate.

[0023] Furthermore, in step S5, the sponge suction cup fixing plate is completely rolled two to three times inside the heating device.

[0024] By adopting the aforementioned technical solution, the beneficial effects of the present invention are:

[0025] 1. Compared with existing shoe sole flocking equipment, this invention has the advantages of high integration, compact process, high production efficiency, high level of automation, and good stabilization effect after shoe sole flocking. It ensures the integration of shoe sole pushing automation, shoe sole adaptive gripping automation, treatment agent and adhesive spraying automation, shoe sole flocking automation, workstation conversion automation, shoe sole conveying, drying, and residual flocking recycling. In the production line proposed by this invention, the working stroke of the first and second transfer robots is 1500mm, and the moving speed of the mesh conveyor belt device is 0.12m / s, ensuring a baking time of 48s and a flocking range error of ±3mm. The first and second transfer robots are responsible for different moving paths, ensuring that there is no mechanical interference between them during operation. Both operate in a linear manner, avoiding wear on rotating parts caused by frequent large-angle rotation of the robots, thus improving the service life of the equipment. After the shoe sole has undergone treatment agent spraying and adhesive spraying, it is then directly conveyed by the mesh conveyor belt device, improving the working efficiency of the production line.

[0026] 2. This invention places the heating device on a mesh conveyor belt device. The semi-enclosed structure minimizes heat loss and saves energy. At the same time, a circulating fan is installed inside the heating device. The operation of the circulating fan is coordinated with the circulating air plate on the side plate of the heating device. During the heating and drying operation, the hot airflow generated by the circulating fan blows directly onto the circulating air plate. After being guided by the circulating air plate, the hot airflow forms a gentle circulating airflow inside the heating device. This avoids the hot airflow generated by the circulating fan blowing directly onto the sole, which could easily damage the flocked surface. Moreover, the gentle circulating airflow can blow the excess flocked fabric off the sole without damaging the flocked surface.

[0027] 3. This invention features a flipping track on the side plate of the heating device. This track, in conjunction with the flipping station, ensures that the sponge suction cup fixing plate begins to flip immediately upon entering the heating device. The flipping process achieves more uniform heating and drying, as well as the dispersing of excess lint. Furthermore, the vertical cross-section of the rotating rod on the sponge suction cup fixing plate is rectangular, and the free end of the telescopic support rod has a corresponding rectangular groove. This ensures greater stability of the sponge suction cup fixing plate during transport by the mesh conveyor belt. The upper and lower tracks within the flipping track have serrated surfaces. These serrated surfaces are designed to secure the rotating rod and ensure stable flipping. The flipping of the sponge suction cup fixing plate and the circulating hot airflow within the heating device ensure uniform and stable heating and drying, while also dispersing excess lint.

[0028] 4. The present invention further improves the quality of the finished product by setting up an excess lint recovery device after the heating device, generating a negative pressure airflow to perform secondary lint sorting on the soles coming out of the heating device. The excess lint recovery mainly consists of the excess lint on the sole surface that has not been blown away and the excess lint remaining on the flipping station. This is because after the flipping station sends the sponge suction cup fixing plate onto the flipping track, it still plays a supporting role and moves synchronously with the sponge suction cup fixing plate in the heating device. Attached Figure Description

[0029] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0030] Figure 1 This is a top view of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the heating device of the present invention;

[0032] Figure 3 This is a schematic diagram of the side plate structure of the heating device of the present invention;

[0033] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0034] Figure 5 This is a top view of the flip-over workstation structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the side structure of the sponge suction cup fixing plate of the present invention;

[0036] Figure 7 This is a flowchart of the working method of the present invention.

[0037] Explanation of reference numerals in the attached drawings: 1. First transfer robot; 2. Second transfer robot; 3. Sponge suction cup fixing plate; 3. Rotating rod; 31. Automatic shoe sole pushing platform; 4. Treatment agent spraying device; 5. Adhesive spraying device; 6. Flocking device; 7. Mesh conveyor belt device; 8. Tilting station; 81. Support base; 811. Telescopic support rod; 812. Rectangular slot; 8121. Excess flocking recovery device; 82. Heating device; 9. Top plate; 911. Circulating fan; 92. Side plate; 921. Heating pipe; 922. Circulating air plate; 923. Upper track; 924. Lower track. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] Please see Figures 1-7 This invention provides an automated shoe sole flocking production line, comprising a mesh conveyor belt device 8, a heating device 9, a flocking device 7, an adhesive spraying device 6, a treatment agent spraying device 5, an automatic shoe sole pushing platform 4, a first transfer robot 1, a second transfer robot 2, and a residual flocking recovery device 82. A sponge suction cup fixing plate 3 is placed on the automatic shoe sole pushing platform 4. The first transfer robot 1 is used to transport the sponge suction cup fixing plate 3 from the automatic shoe sole pushing platform 4 to the adhesive spraying device 6 via the treatment agent spraying device 5. The second transfer robot 2 is used to transport the sponge suction cup fixing plate 3 from the adhesive spraying device 6 to the flocking device 7 via the mesh conveyor belt device 8.

[0040] The heating device 9 is covered on the mesh conveyor belt device 8, forming a semi-enclosed channel for heating and fixing the shoe sole after flocking is completed. The excess flocking recycling device 82 is set on the mesh conveyor belt device 8.

[0041] The mesh conveyor belt device 8 is provided with a flipping station 81 for receiving the sponge suction cup fixing plate 3.

[0042] The flipping stations 81 are arranged intermittently on the mesh conveyor belt device 8, with the same spacing between adjacent flipping stations 81. The heating device 9 has an inverted U-shaped structure and is installed on the mesh conveyor belt device 8. The heating device 9 includes two parallel side plates 92 and a top plate 91 mounted on the two side plates 92. Heating pipes 921 are provided on the inner surface of the side plates 92, and a circulating fan 911 is provided on the inner surface of the top plate 91. The circulating fan 911 generates airflow that blows towards the side plates 92. The heating pipes 921 on the side plates 92 are arranged intermittently, and a circulating air plate 922 is provided in the gap between two heating pipes 921. The circulating air plate 922 has an arc-shaped cross-section in the vertical direction, and the circulating air... The plate 922 is tilted upward. The flipping station 81 includes a support base 811 and a telescopic support rod 812 disposed on the support base 811. The telescopic support rod 812 is driven by a motor to move up and down in the vertical direction. A rectangular slot 8121 is provided on the free end of the telescopic support rod 812. A rotating rod 31 is fixedly disposed on the sponge suction cup fixing plate 3. The vertical cross section of the rotating rod 31 is a rectangular structure. When the sponge suction cup fixing plate 3 is transported to the flipping station 81 by the second transfer robot 2, the rotating rod 31 and the rectangular slot 8121 are engaged with each other.

[0043] The heating device 9 has symmetrically arranged flipping tracks on the side plate 92. The flipping tracks include an upper track 923 and a lower track 924. Both the upper track 923 and the lower track 924 are driven by a motor to rotate reciprocally. Both the upper track 923 and the lower track 924 have serrated surfaces. When the flipping station 81 enters the heating device 9, the rotating rod 31 is engaged in the channel between the upper track 923 and the lower track 924 and rotates horizontally along with the movement of the upper track 923 and the lower track 924. When the rotating rod 31 enters the flipping track, the lower track 924 remains stationary or moves synchronously. When the sponge suction cup fixing plate 3 needs to rotate, the lower track 924 remains stationary. When the sponge suction cup fixing plate 3 needs to move, the upper track 923 and the lower track 924 move synchronously.

[0044] The sponge suction cup fixing plate 3 is provided with four shoe sole mounting grooves 32, and the shoe sole mounting grooves 32 penetrate through the sponge suction cup fixing plate 3.

[0045] This embodiment also presents a working method for the aforementioned production line, an automated shoe sole flocking production line, comprising the following steps:

[0046] S1: Shoe sole placement; Place the shoe sole on the sponge suction cup fixing plate 3 for fixing, and then place the sponge suction cup fixing plate 3 on the automatic shoe sole pushing platform 4 for transportation;

[0047] S2, Treatment agent spraying; The first transfer robot 1 automatically pushes the sponge suction cup fixing plate 3 from the shoe sole onto the shoe platform 4 and transports it to the treatment agent spraying device 5 for treatment agent spraying.

[0048] S3, Adhesive spraying; The sponge suction cup fixing plate 3, which has completed the treatment agent spraying process, is clamped and transported to the adhesive spraying device 6 by the first transfer robot 1 for adhesive spraying.

[0049] S4. Sole flocking: The sponge suction cup fixing plate 3, which has completed the adhesive spraying process, is clamped and transported to the flocking device 7 by the second transfer robot 2 for sole flocking.

[0050] S5. Shoe sole drying: The sponge suction cup fixing plate 3 after the shoe sole flocking process is completed is clamped and transported to the flipping station 81 on the mesh conveyor belt device 8 by the second transfer robot 2. The flipping station 81 moves with the mesh conveyor belt device 8 to the heating device 9 for heating and drying.

[0051] S6, Residual Down Recycling: After being heated and dried, the shoe soles continue to be transported forward by the mesh conveyor belt device 8 to the residual down recycling device 82 for residual down recycling. The residual down recycling device 82 generates a downward negative pressure airflow.

[0052] In step S5, after the flipping station 81 enters the heating device 9 along with the mesh conveyor belt device 8, the sponge suction cup fixing plate 3 on the flipping station 81 is locked onto the flipping track and tumbles under the drive of the flipping track. When the sponge suction cup fixing plate 3 is locked onto the flipping track, the telescopic support rod 812 retracts downward and rises again after the sponge suction cup fixing plate 3 leaves the heating device 9 to engage with the rotating rod 31 of the sponge suction cup fixing plate 3.

[0053] Furthermore, the sponge suction cup fixing plate 3 described in step S5 is output after it has completely rolled three times inside the heating device 9.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automated shoe sole flocking production line, characterized in that: The device includes a mesh conveyor belt, a heating device, a flocking device, an adhesive spraying device, a treatment agent spraying device, an automatic shoe sole pushing platform, a first transfer robot, a second transfer robot, and a residual flocking device. A sponge suction cup fixing plate is placed on the automatic shoe sole pushing platform. The first transfer robot is used to transport the sponge suction cup fixing plate from the automatic shoe sole pushing platform to the adhesive spraying device via the treatment agent spraying device. The second transfer robot is used to transport the sponge suction cup fixing plate from the adhesive spraying device to the mesh conveyor belt. The heating device is covered on the mesh conveyor belt device, forming a semi-enclosed channel for heating and fixing the shoe sole after flocking is completed. The excess flocking recycling device is set on the mesh conveyor belt device. The mesh conveyor belt device is equipped with a flipping station for receiving the sponge suction cup fixing plate; The flipping stations are arranged intermittently on the mesh conveyor belt device, and the distance between two adjacent flipping stations is the same. The heating device has an inverted U-shaped structure and is installed on the mesh conveyor belt device. The heating device includes two parallel side plates and a top plate mounted on the two side plates. Heating pipes are provided on the inner side of the side plates, and a circulating fan is provided on the inner side of the top plate. The flipping station includes a support base and a telescopic support rod disposed on the support base. The telescopic support rod is driven by a motor to move up and down in the vertical direction. A rectangular slot is provided at the free end of the telescopic support rod. A rotating rod is fixedly disposed on the sponge suction cup fixing plate. The vertical cross-section of the rotating rod is a rectangular structure. When the sponge suction cup fixing plate is transported to the flipping station by the second transfer robot, the rotating rod and the rectangular slot are engaged with each other. The heating device has symmetrically arranged flipping tracks on the side plate. The flipping tracks include an upper track and a lower track, both of which are driven by a motor to reciprocate. Both the upper and lower tracks have serrated surfaces. When the flipping station enters the heating device, the rotating rod is engaged in the channel between the upper and lower tracks and rotates horizontally along with the movement of the upper and lower tracks. When the rotating rod enters the flipping track, the lower track remains stationary or moves synchronously.

2. The automated shoe sole flocking production line according to claim 1, characterized in that: The circulating fan generates airflow that blows toward the side plate. The heating tubes on the side plate are arranged intermittently. A circulating air plate is provided in the gap between two heating tubes. The circulating air plate has an arc-shaped cross-section in the vertical direction and is inclined upward.

3. The automated shoe sole flocking production line according to claim 2, characterized in that: The sponge suction cup fixing plate is provided with at least four shoe sole mounting slots, which penetrate through the sponge suction cup fixing plate.

4. A method for operating an automated shoe sole flocking production line, applied to the automated shoe sole flocking production line as described in claim 3, characterized in that: Includes the following steps: S1: Shoe sole placement; Place the shoe sole on the foam suction cup fixing plate and fix it. After fixing the shoe sole, place the foam suction cup fixing plate on the automatic shoe sole pushing platform for transportation. S2, Treatment agent spraying: The first transfer robot arm automatically pushes the sponge suction cup fixing plate from the shoe sole onto the shoe platform for clamping and transporting it to the treatment agent spraying device for treatment agent spraying; S3, Adhesive spraying; The sponge suction cup fixing plate after the treatment agent spraying process is clamped and transported to the adhesive spraying device by the first transfer robot for adhesive spraying; S4. Sole flocking: The sponge suction cup fixing plate after the adhesive spraying process is clamped and transported to the flocking device by the second transfer robot for sole flocking. S5. Shoe sole drying: The sponge suction cup fixing plate after the shoe sole flocking process is completed is clamped and transported to the flipping station on the mesh conveyor belt device by the second transfer robot. The flipping station moves with the mesh conveyor belt device into the heating device for heating and drying. S6. Excess Down Recycling: After being heated and dried, the shoe soles continue to be transported forward by the mesh conveyor belt to the excess down recycling device for excess down recycling. The excess down recycling device generates a downward negative pressure airflow.

5. The working method of an automated shoe sole flocking production line according to claim 4, characterized in that: In step S5, after the flipping station enters the heating device along with the mesh conveyor belt, the sponge suction cup fixing plate on the flipping station is placed on the flipping track and tumbles under the drive of the flipping track. When the sponge suction cup fixing plate is placed on the flipping track, the telescopic support rod retracts downward and rises again after the sponge suction cup fixing plate leaves the heating device to engage with the rotating rod of the sponge suction cup fixing plate.

6. The working method of an automated shoe sole flocking production line according to claim 5, characterized in that: In step S5, the sponge suction cup fixing plate is completely rolled two to three times inside the heating device.

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