A metal safety shoe head surface spraying device

Abstract

This utility model discloses a metal safety shoe toe surface spraying device, including a frame, a housing on the frame, and a PLC controller on the housing. A positioning, lifting, and telescopic cylinder is mounted on the frame below the housing, with its telescopic rod pointing upwards and slidingly and sealingly fitted into the housing. The telescopic rod end of the positioning, lifting, and telescopic cylinder is equipped with a suction cup located within the housing for gripping and fixing the metal safety shoe toe from its inner surface. A translation mechanism is located at the top of the housing, and this mechanism includes a spraying mechanism for spraying the outer surface of the metal safety shoe toe from its top and sides. The output of the PLC controller is connected to the controlled terminals of the positioning, lifting, and telescopic cylinder, the suction cup, the translation mechanism, and the spraying mechanism. This utility model achieves high-efficiency and high-quality spraying of metal safety shoe toes.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, specifically to a spraying device for the surface of metal safety shoe toes. Background Technology

[0002] In the production process of metal safety shoes, it is necessary to process the metal toe cap (such as...) Figure 1 The surface of the shoe (as shown) is sprayed to achieve protective and aesthetic purposes. However, traditional spraying methods mostly involve manual operation, with workers holding spray guns to spray the toe of the shoe. This method has many drawbacks. For example, manual operation is labor-intensive and has low spraying efficiency; moreover, due to the instability of manual operation, uneven spraying is easily caused, affecting product quality. In addition, it is difficult to manually adjust the spraying position and parameters for shoe toe sizes, making it difficult to ensure product consistency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a metal safety shoe toe surface spraying device to achieve high-efficiency and high-quality spraying of metal safety shoe toes.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A metal safety shoe toe surface spraying device includes a frame, a housing mounted on the frame, and a PLC controller mounted on the housing. The frame includes a positioning, lifting, and telescopic cylinder located below the housing, with its telescopic rod pointing upwards and slidingly and sealingly fitted into the housing. The telescopic rod end of the positioning, lifting, and telescopic cylinder is equipped with a suction cup located within the housing for gripping and fixing the metal safety shoe toe from its inner surface. A translation mechanism is located at the top of the housing, and this mechanism includes a spraying mechanism for spraying the outer surface of the metal safety shoe toe from its top and sides. The output of the PLC controller is connected to the controlled terminals of the positioning, lifting, and telescopic cylinder, the suction cup, the translation mechanism, and the spraying mechanism, respectively.

[0006] Preferably, the suction cup includes a hollow cavity disposed at the end of the telescopic rod of the positioning lifting telescopic cylinder. The top of the hollow cavity is detachably connected to the suction cup body via a connecting pipe. The top contour of the suction cup body is adapted to the middle of the inner surface of the metal safety shoe toe. The top of the suction cup body is also covered with a rubber layer along the circumference for adhering to the inner surface of the metal safety shoe toe. The hollow cavity is also connected to an air pump disposed on the frame via an air pipe sealed and assembled with the chassis. The air pipe is connected to a breathing tube, and a breathing valve for opening and closing the breathing tube is disposed on the breathing tube. The output terminal of the PLC controller is respectively connected to the controlled terminals of the air pump and the breathing valve.

[0007] Preferably, the translation mechanism includes an X-axis translation component that moves left and right within the chassis and a Z-axis translation component that is mounted on the X-axis translation component and moves back and forth within the chassis.

[0008] Preferably, the spraying mechanism includes two pivotal curved arms mounted on the Z-axis translation component and arranged opposite to each other, and a spraying lifting and telescopic cylinder located between the two pivotal curved arms; the free end of each pivotal curved arm is provided with a side spray nozzle for spraying the metal safety shoe toe from the side of the metal safety shoe toe, and the free end of the pivotal curved arm is also hinged to an adjusting telescopic cylinder that is hinged to the Z-axis translation component to drive the pivotal curved arm to change its bending angle to adjust the spraying angle of the side spray nozzle; the telescopic rod of the spraying lifting and telescopic cylinder is arranged downwards and connected to a spraying cylinder for spraying the metal safety shoe toe from the side of the metal safety shoe toe. The spraying mechanism includes a top-mounted spray nozzle for spraying metal safety shoe toes; the spraying mechanism also includes a paint tank located outside the machine housing for holding paint, the paint tank being connected to a pump, the pump outlet being connected to a main feed pipe, the main feed pipe outlet being connected to each side spray nozzle and the top-mounted spray nozzle via branch feed pipes, and each branch feed pipe being equipped with a spraying valve for controlling the on / off state of the corresponding branch feed pipe; the output terminal of the PLC controller is connected to the controlled terminals of the spraying lifting telescopic cylinder, the adjusting telescopic cylinder, the pump, and the spraying valves.

[0009] Preferably, the X-axis translation assembly includes an X-axis lead screw that is rotatably mounted on the top of the chassis in the left-right direction and an X-axis guide rod that is mounted on the top of the chassis and parallel to the X-axis lead screw. An X-axis translation seat that is threadedly connected to the X-axis lead screw is slidably mounted on the X-axis guide rod. One end of the X-axis lead screw is connected to an X-axis translation drive motor that is mounted in the chassis and is used to drive the X-axis lead screw to rotate so as to realize the translation of the X-axis translation seat. The controlled end of the X-axis translation drive motor is connected to the output end of the PLC controller.

[0010] Preferably, the Z-axis translation assembly includes a Z-axis lead screw rotatably mounted on the lower surface of the X-axis translation seat along the front-rear direction inside the chassis, and a Z-axis guide rod mounted on the X-axis translation seat and parallel to the Z-axis lead screw. A Z-axis translation seat threadedly connected to the Z-axis lead screw is slidably mounted on the Z-axis guide rod. One end of the Z-axis lead screw is connected to a Z-axis translation drive motor mounted on the X-axis translation seat for driving the Z-axis lead screw to rotate and thus translating the Z-axis translation seat. The controlled end of the Z-axis translation drive motor is connected to the output end of the PLC controller. The pivot arm and the spraying lifting telescopic cylinder are both mounted on the Z-axis translation seat, and the telescopic cylinder is hinged to the Z-axis translation seat.

[0011] Preferably, the bottom of the casing has a discharge port and a guide plate inclined toward the discharge port; a collection drawer located below the discharge port and used to collect the paint flowing out of the discharge port is slidably mounted on the frame.

[0012] Preferably, the chassis is provided with a door for easy access to metal safety shoe toes.

[0013] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0014] This invention uses a suction cup to reliably fix metal safety shoe toes of different sizes. The interchangeable suction cup body and rubber layer ensure the stability of the adsorption and fixation, which helps to improve the coating quality.

[0015] This invention uses a translation mechanism to precisely control the position of the spraying mechanism in the front-back and left-right directions. Combined with an adjustable-angle side spray nozzle, a height-adjustable top spray nozzle, and a height-adjustable suction cup, it can achieve uniform and complete spraying of the outer surface of metal safety shoe toes of different sizes, thus improving the spraying effect and efficiency.

[0016] This invention, through the design of a paint tank, pump, branch conveying pipe, and spray valve, can not only achieve complete spraying of the shoe toe, but also adapt to the spraying needs of different working conditions by controlling the on / off state of the spray valve.

[0017] This invention, through the discharge port, guide plate, and collection drawer located at the bottom of the machine casing, can conveniently collect the paint spilled during the spraying process, reducing paint waste and environmental pollution. Attached Figure Description

[0018] Figure 1 This is a structural diagram of an existing metal safety shoe toe.

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the spraying mechanism of this utility model.

[0021] The components include: 1. Frame, 2. Chassis, 3. Positioning lifting telescopic cylinder, 4. Suction cup, 41. Hollow cavity, 42. Connecting pipe, 43. Suction cup body, 44. Air pipe, 45. Air pump, 46. Breathing pipe, 5. Translation mechanism, 51. X-axis lead screw, 52. X-axis translation drive motor, 53. X-axis translation seat, 54. Z-axis lead screw, 55. Z-axis guide rod, 56. Z-axis translation seat, 6. Spraying mechanism, 61. Pivoted crank arm, 62. Side spray nozzle, 63. Adjusting telescopic cylinder, 64. Spraying lifting telescopic cylinder, 65. Overhead spray nozzle, 66. Paint tank, 67. Pump, 68. Main conveying pipe, 69. Branch conveying pipe, 7. PLC controller, 8. Guide plate, 9. Collection drawer. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] A metal safety shoe toe surface spraying device, combined with Figure 2 As shown, the device includes a frame 1, which provides a supporting framework for the entire unit. A housing 2 is mounted on the frame 1, serving as the main space for the spraying operation and effectively preventing paint splattering during the spraying process. A positioning and lifting telescopic cylinder 3 is mounted on the frame 1. Located below the housing 2, the cylinder 3 has its telescopic rod pointing upwards and is inserted into and slidably fitted into the housing 2. A suction cup 4 is located at the end of the telescopic rod of the cylinder 3, within the housing 2. The suction cup 4 is used to adhere to the inner surface of the metal safety shoe toe, thereby securing it in place. A translation mechanism 5 is located at the top of the housing 2, and a spraying mechanism 6 is mounted on the translation mechanism 5. The spraying mechanism 6 is used to spray the outer surface of the metal safety shoe toe from the top and sides. In use, the metal safety shoe toe, which is fixed by suction cup 4, moves upward under the drive of positioning lifting telescopic cylinder 3 and enters the spraying mechanism 6. The spraying mechanism 6 moves under the drive of translation mechanism 5 to achieve uniform and complete spraying of the outer surface of the metal safety shoe toe.

[0024] The suction cup 4 includes a hollow cavity 41, which is located at the end of the telescopic rod of the positioning lifting telescopic cylinder 3. The top of the hollow cavity 41 is detachably connected to the suction cup body 43 through a connecting pipe 42. The top contour of the suction cup body 43 is adapted to the middle of the inner surface of the metal safety shoe toe, and the top of the suction cup body 43 is also covered with a rubber layer along the circumference. When the suction cup 4 holds the metal safety shoe toe, the rubber layer can adhere to the inner surface of the metal safety shoe toe, thereby ensuring the reliability of the adsorption and fixation. Specifically, the suction cup body 43 is a set of suction cup bodies suitable for different metal safety shoe toes. By replacing different suction cup bodies 43, the spraying of different metal safety shoe toes can be satisfied. The hollow cavity 41 is also connected to an air pump 45 via an air pipe 44 sealed to the housing 2. The air pump 45 is mounted on the frame 1. In use, the operator presses the metal safety shoe toe onto the suction cup body 43 and positions the metal safety shoe toe in the front-to-back direction within the housing 2. The air pump 45 is then activated to extract air until the metal safety shoe toe is adsorbed and fixed. The air pipe 44 is connected to a breathing tube 46, which is equipped with a breathing valve. The breathing valve is used to open and close the breathing tube 46. When the air pump 45 extracts air, the breathing valve is closed. After the surface of the metal safety shoe toe is coated, the breathing valve is opened to facilitate the removal of the metal safety shoe toe.

[0025] The translation mechanism 5 includes an X-axis translation component and a Z-axis translation component. The X-axis translation component moves left and right within the chassis 2. The Z-axis translation component is mounted on the X-axis translation component and moves back and forth within the chassis 2.

[0026] The X-axis translation assembly includes an X-axis lead screw 51 and an X-axis guide rod. The X-axis lead screw 51 is rotatably mounted on the top of the housing 2 in the left-right direction. The X-axis guide rod is mounted on the top of the housing 2 and is parallel to the X-axis lead screw 51. An X-axis translation seat 53, which is threadedly connected to the X-axis lead screw 51, is slidably mounted on the X-axis guide rod. One end of the X-axis lead screw 51 is connected to an X-axis translation drive motor 52, which is located in the housing 2. The X-axis translation drive motor 52 drives the X-axis lead screw 51 to rotate, thereby realizing the translation of the X-axis translation seat 53.

[0027] The Z-axis translation assembly includes a Z-axis lead screw 54 and a Z-axis guide rod 55. The Z-axis lead screw 54 is rotatably mounted on the lower surface of the X-axis translation seat 53 within the housing 2. The Z-axis guide rod 55 is mounted on the X-axis translation seat 53 and is parallel to the Z-axis lead screw 54. A Z-axis translation seat 56, which is threadedly connected to the Z-axis lead screw 54, is slidably mounted on the Z-axis guide rod 55. One end of the Z-axis lead screw 54 is connected to a Z-axis translation drive motor, which is mounted on the X-axis translation seat 53. The Z-axis translation drive motor drives the Z-axis lead screw 54 to rotate, thereby realizing the translation of the Z-axis translation seat 56.

[0028] like Figure 3 As shown, the spraying mechanism 6 includes two pivotal curved arms 61 mounted on the Z-axis translation seat 56 of the Z-axis translation assembly and a spraying lifting telescopic cylinder 64. The two pivotal curved arms 61 are arranged opposite each other and are formed by two lever arms pivotally connected. The spraying lifting telescopic cylinder 64 is located between the two pivotal curved arms 61. A side spray nozzle 62 is provided at the free end of the pivotal curved arm 61. The side spray nozzle 62 is used to spray the metal safety shoe toe from the side. An adjusting telescopic cylinder 63 is also hinged to the free end of the pivotal curved arm 61. The adjusting telescopic cylinder 63 is also hinged to the Z-axis translation seat 56 of the Z-axis translation assembly. The adjusting telescopic cylinder 63 is used to drive the pivotal curved arm 61 to change the bending angle to adjust the spraying angle of the side spray nozzle 62, thereby cooperating with the positioning lifting telescopic cylinder 3 to achieve spraying of the side of metal safety shoe toes of different sizes. The telescopic rod of the spraying lifting telescopic cylinder 64 is set downward and connected to a downward spray nozzle 65, which is used to spray the metal safety shoe toe from the top of the metal safety shoe toe.

[0029] The spraying mechanism 6 also includes a paint tank 66, which is located on the outside of the housing 2 and is used to hold paint. The paint tank 66 is connected to a pump 67, and the outlet of the pump 67 is connected to a main feed pipe 68. The outlet of the main feed pipe 68 is connected to each side spray nozzle 62 and the overhead spray nozzle 65 via branch feed pipes 69. Each branch feed pipe 69 is equipped with a spraying valve to control the opening and closing of the corresponding branch feed pipe 69. In use, the pump 67 pumps the paint from the paint tank 66 into each branch feed pipe 69 and sprays it out through each side spray nozzle 62 and the overhead spray nozzle 65 to achieve surface spraying of the metal safety shoe toe. The spraying valves control the opening and closing of each branch feed pipe 69, enabling spraying suitable for different working conditions.

[0030] The bottom of the casing 2 has a discharge port and a guide plate 8, which is inclined towards the discharge port so that the paint that spills during the spraying process can flow out from the discharge port. A collection drawer 9 is slidably mounted on the frame 1. The collection drawer 9 is located below the discharge port and is used to collect the paint flowing out from the discharge port, thereby achieving paint collection.

[0031] The chassis 2 is equipped with a door, through which metal safety shoe toes can be easily taken out and put in.

[0032] A PLC controller 7 is installed on the chassis 2. The output terminals of the PLC controller 7 are connected to the controlled terminals of the positioning lifting telescopic cylinder 3, suction cup 4, translation mechanism 5, and spraying mechanism 6, respectively. Specifically, it is connected to the controlled terminals of the positioning lifting telescopic cylinder 3, air pump 45, breather valve, X-axis translation drive motor 52, Z-axis translation drive motor, spraying lifting telescopic cylinder 64, adjusting telescopic cylinder 63, pump 67, and spraying valve, respectively. In use, the model of the metal safety shoe toe to be sprayed is selected through the PLC controller 7, and the PLC controller 7 realizes the automated control of each component of the device to complete the spraying.

[0033] The working principle of this utility model is as follows:

[0034] (a) Toe fixing

[0035] Open the enclosure door, and the operator places the metal safety shoe toe onto the suction cup body 43, positioning the metal safety shoe toe in the front-to-back direction within the enclosure 2. Start the air pump 45 to extract air, at which point the breather valve 47 closes, drawing air out of the enclosure 2 and reducing the air pressure inside the suction cup 4. The external atmospheric pressure then presses the metal safety shoe toe firmly against the suction cup body 43, ensuring the rubber layer adheres to the inner surface of the metal safety shoe toe for reliable fixation. Close the enclosure door. When it is necessary to change to a different size shoe toe, the corresponding suction cup body 43 can be replaced.

[0036] (ii) Translation control

[0037] According to the preset spraying program, the PLC controller 7 controls the X-axis translation drive motor 52 to drive the X-axis lead screw 51 to rotate, thereby driving the X-axis translation seat 53 to move left and right along the X-axis guide rod; at the same time, the Z-axis translation drive motor 57 drives the Z-axis lead screw 54 to rotate, driving the Z-axis translation seat 56 to move back and forth along the Z-axis guide rod 55, moving the spraying mechanism 6 to the predetermined spraying position.

[0038] (III) Spraying Operation

[0039] Pump 67 pumps paint from paint tank 66 into main delivery pipe 68, and then delivers it to each spray nozzle through branch delivery pipes 69. During spraying, when spraying the side of the shoe toe, PLC controller 7 controls the extension and retraction of telescopic cylinder 63, changing the angle of pivot arm 61, thereby adjusting the spraying angle of side spray nozzle 62. This, combined with positioning lifting telescopic cylinder 3 and Z-axis translation component, achieves uniform spraying of the side of the shoe toe. Simultaneously, spraying lifting telescopic cylinder 64 drives downward spray nozzle 65 to move up and down, spraying the top of the shoe toe. The spraying valves corresponding to different spray nozzles can be independently controlled to adapt to different spraying requirements.

[0040] (iv) Paint collection

[0041] During the spraying process, the scattered paint is guided by the guide plate 8 and flows from the discharge port at the bottom of the casing 2 into the collection drawer 9. After spraying is completed, the collection drawer 9 can be pulled out to clean the collected paint.

[0042] (v) Remove the toe of the shoe

[0043] After the metal safety shoe toe is coated, open the box door and open the breathing valve 47. Outside air enters the hollow cavity 41 and the suction cup body 43, so that the air pressure inside the suction cup body 43 is consistent with the outside air. At this time, the operator can easily remove the metal safety shoe toe.

Claims

1. A metal safety shoe toe surface spraying device, comprising a frame (1), a housing (2) mounted on the frame (1), and a PLC controller (7) mounted on the housing (2), characterized in that: The frame (1) is provided with a positioning lifting telescopic cylinder (3) located below the chassis (2) with its telescopic rod facing upwards, which is inserted into the chassis (2) and slidably sealed with the chassis (2). The telescopic rod end of the positioning lifting telescopic cylinder (3) is provided with a suction cup (4) located in the chassis (2) for sucking the metal safety shoe toe from the inner surface of the metal safety shoe to fix the metal safety shoe toe. The top of the chassis (2) is provided with a translation mechanism (5), and the translation mechanism (5) is provided with a spraying mechanism (6) for spraying the outer surface of the metal safety shoe toe from the top and side of the metal safety shoe toe. The output end of the PLC controller (7) is connected to the controlled end of the positioning lifting telescopic cylinder (3), the suction cup (4), the translation mechanism (5) and the spraying mechanism (6) respectively.

2. The metal safety shoe toe surface spraying device according to claim 1, characterized in that: The suction cup (4) includes a hollow cavity (41) at the end of the telescopic rod of the positioning lifting telescopic cylinder (3). The top of the hollow cavity (41) is detachably connected to the suction cup body (43) through a connecting pipe (42). The top contour of the suction cup body (43) is adapted to the middle of the inner surface of the metal safety shoe toe. The top of the suction cup body (43) is also covered with a rubber layer for adhering to the inner surface of the metal safety shoe toe along the circumferential direction. The hollow cavity (41) is also connected to a vacuum pump (45) on the frame (1) through an air pipe (44) sealed and assembled with the chassis (2). The air pipe (44) is connected to a breathing tube (46). A breathing valve for opening and closing the breathing tube (46) is provided on the breathing tube (46). The output end of the PLC controller (7) is connected to the controlled end of the vacuum pump (45) and the breathing valve, respectively.

3. The metal safety shoe toe surface spraying device according to claim 1, characterized in that: The translation mechanism (5) includes an X-axis translation component that moves left and right within the chassis (2) and a Z-axis translation component that is mounted on the X-axis translation component and moves back and forth within the chassis (2).

4. The metal safety shoe toe surface spraying device according to claim 3, characterized in that: The spraying mechanism (6) includes two pivotal curved arms (61) mounted on the Z-axis translation component and arranged opposite to each other, and a spraying lifting telescopic cylinder (64) located between the two pivotal curved arms (61). The free end of each pivotal curved arm (61) is provided with a side spray nozzle (62) for spraying the metal safety shoe toe from the side. The free end of each pivotal curved arm (61) is also hinged to an adjusting telescopic cylinder (63) that is hinged to the Z-axis translation component to drive the pivotal curved arm (61) to change its bending angle, thereby adjusting the spraying angle of the side spray nozzle (62). The telescopic rod of the spraying lifting telescopic cylinder (64) is arranged downwards and connected to a device for spraying the metal safety shoe toe from the top of the metal safety shoe. The spraying mechanism (6) also includes a paint tank (66) located outside the housing (2) for holding paint. The paint tank (66) is connected to a pump (67). The outlet of the pump (67) is connected to a main conveying pipe (68). The outlet of the main conveying pipe (68) is connected to each side spraying nozzle (62) and the top spraying nozzle (65) through a branch conveying pipe (69). Each branch conveying pipe (69) is equipped with a spraying valve for controlling the opening and closing of the corresponding branch conveying pipe (69). The output end of the PLC controller (7) is connected to the controlled end of the spraying lifting telescopic cylinder (64), the adjusting telescopic cylinder (63), the pump (67), and the spraying valve.

5. The metal safety shoe toe surface spraying device according to claim 4, characterized in that: The X-axis translation assembly includes an X-axis lead screw (51) that rotates in the left-right direction inside the housing (2) and an X-axis guide rod that is set in the top of the housing (2) and parallel to the X-axis lead screw (51). An X-axis translation seat (53) that is threadedly connected to the X-axis lead screw (51) is slidably mounted on the X-axis guide rod. One end of the X-axis lead screw (51) is connected to an X-axis translation drive motor (52) that is set in the housing (2) and is used to drive the X-axis lead screw (51) to rotate so as to realize the translation of the X-axis translation seat (53). The controlled end of the X-axis translation drive motor (52) is connected to the output end of the PLC controller (7).

6. The metal safety shoe toe surface spraying device according to claim 5, characterized in that: The Z-axis translation assembly includes a Z-axis lead screw (54) rotatably mounted on the lower surface of the X-axis translation seat (53) along the front-back direction inside the housing (2) and a Z-axis guide rod (55) mounted on the X-axis translation seat (53) and parallel to the Z-axis lead screw (54). A Z-axis translation seat (56) threadedly connected to the Z-axis lead screw (54) is slidably mounted on the Z-axis guide rod (55). One end of the Z-axis lead screw (54) is connected to a Z-axis translation drive motor mounted on the X-axis translation seat (53) for driving the Z-axis lead screw (54) to rotate so as to realize the translation of the Z-axis translation seat (56). The controlled end of the Z-axis translation drive motor is connected to the output end of the PLC controller (7). The pivot arm (61) and the spraying lifting telescopic cylinder (64) are both mounted on the Z-axis translation seat (56). The telescopic cylinder (63) is hinged to the Z-axis translation seat (56).

7. The metal safety shoe toe surface spraying device according to claim 1, characterized in that: The bottom of the machine box (2) is provided with a discharge port and a guide plate (8) inclined towards the discharge port; a collection drawer (9) located below the discharge port is slidably mounted on the frame (1) for collecting the paint flowing out from the discharge port.

8. The metal safety shoe toe surface spraying device according to claim 1, characterized in that: The chassis (2) is equipped with a door for easy access to metal safety shoes.

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