An automatic hanging process for galvanizing the crossbar of a button-lock scaffolding

Abstract

The present invention discloses an automatic hanging process for galvanizing the crossbars of a socketed scaffolding, belonging to the technical field of galvanizing intelligent manufacturing, and comprising the following steps: vertically conveying the crossbars to be galvanized to a turntable; the turntable is hinged with an electromagnetic gripper I and an electromagnetic gripper II which are arranged oppositely up and down in the same vertical plane, and the electromagnetic gripper II is hinged with the turntable through a piston cylinder; the piston rod of the piston cylinder extends out, and the electromagnetic gripper II and the electromagnetic gripper I hold the middle part of the crossbar; rotating and aligning the crossbar to make the pin hole close to the inner side of the turntable through a rotating alignment mechanism; sucking the pin towards one side of the pin hole through a pin inserting and extracting electromagnet; placing the hook-shaped hanger into a repair die, and the repair die repairs the hook tip angle of the hook-shaped hanger by pressing down the hook tip of the hook-shaped hanger, rotating the turntable until the crossbar is close to the hook tip of the hook-shaped hanger, and the piston rod of the piston cylinder contracts to realize the vertical swing of the crossbar, and sleeving the avoidance hole onto the hook tip of the hook-shaped hanger; the electromagnetic gripper I and the electromagnetic gripper II are powered off to release the hold, and the automatic hanging of the crossbar is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of galvanizing for cross bars of socket - and - spigot scaffolds, and particularly relates to an automatic hanging - piece process for galvanizing cross bars of socket - and - spigot scaffolds. Background Art

[0002] As a new type of building support system, the socket - and - spigot scaffold can be assembled into different shapes and load - bearing capacities according to different construction requirements for single - and multi - unit sizes, double - row scaffolds, and support frames, etc. It mainly includes components such as vertical poles, cross bars, diagonal bars, bases, standard pedestals, and top supports. Among them, the connection node of the socket - and - spigot scaffold is a disc fixed to the vertical pole. Several socket holes are provided on the disc. As Figure 1 shown, a disc slot 11 is provided at the end of the cross bar 1. Through holes 12 penetrate through the wall of the disc slot 11. Let a part of the through hole 12 on one side of the disc slot 11 be a pin hole 121, and the other side be an avoidance hole 122. A wedge - shaped pin 13 is arranged in the pin hole 121. A retaining block 131 for preventing detachment is provided at the tip of the wedge - shaped pin 13. The retaining block 131 is located at the disc slot 11. The contour of the retaining block 131 is larger than the diameter of the pin hole 121, which can effectively prevent the pin 13 from falling off or being lost from the pin hole 121. The tail size of the wedge - shaped pin 13 is larger than the diameter of the through hole 12. During mating, the pin 13 is pulled to one side of the pin hole 121, the disc slot 11 is paired with the disc of the vertical pole, the pin 13 is inserted into the socket hole of the disc, and the tail of the pin 13 is fully pressed against the wall of the pin hole 121 to generate static friction to achieve fixed connection.

[0003] Whether it is a new cross bar 1 or an old cross bar 1 recycled for reuse, in order to make the surface texture of the cross bar 1 uniform, corrosion - resistant, wear - resistant, more beautiful in appearance, and extend its service life, generally, the cross bar 1 needs to be hot - dip galvanized. Since the end structure of the cross bar 1 is relatively complex, only the through hole 12 itself can be used as the hanging hole of the galvanizing fixture 6. The retaining block 131 of the pin 13 itself is mostly riveted and cannot be conveniently disassembled. The position of the pin 13 in the through hole 12 is not fixed, which increases the difficulty of the cooperation between the through hole 12 and the galvanizing fixture. For this reason, enterprises mostly use pure manual operation for galvanizing or remove the pin 13 before hot - dip galvanizing. The inventor believes that pure manual operation has a high labor intensity, a harsh working environment, and unstable work efficiency, which cannot meet the production needs. Forcing the removal of the pin 13 before hot - dip galvanizing not only adds a new removal process, but also requires separate hot - dip galvanizing of the pin 13 to ensure consistent appearance. After treatment, it is necessary to realize the assembly with the pin hole 121 again, which undoubtedly increases a large amount of operating cost and time cost for the manufacturer. For this reason, an automatic hanging - piece process for galvanizing cross bars of socket - and - spigot scaffolds needs to be designed.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art. Summary of the Invention

[0005] Through research, the inventors found that since the position of the bolt in the through hole is not fixed, it increases the difficulty of the hook connection between the cross bar and the galvanized hanger, resulting in the inability to achieve automatic hook connection between the through hole and the galvanized hanger, and thus unable to realize the automatic galvanizing of the cross bar of the disc buckle type scaffolding.

[0006] In view of at least one of the above technical problems, the present disclosure provides an automatic hanging process for galvanizing the cross bar of a disc buckle type scaffolding. The specific technical solution is as follows:

[0007] An automatic hanging process for galvanizing the cross bar of a disc buckle type scaffolding includes the following steps: arranging the cross bars to be galvanized, and vertically transporting them one by one close to the turntable; on the turntable, there are electromagnetic grippers I and electromagnetic grippers II which are arranged opposite to each other up and down in the same vertical plane, and the electromagnetic gripper II is hinged to the turntable through a piston cylinder; the piston rod of the piston cylinder extends, and the electromagnetic gripper II and the electromagnetic gripper I come into contact and hold the middle part of the closest cross bar; the rotated and aligned mechanism arranged above the electromagnetic gripper I rotates the held cross bar so that the bolt hole is close to the inner side of the turntable; the plug bolt electromagnet arranged inside the electromagnetic gripper I attracts the bolt to one side of the bolt hole; placing the hook-shaped hanger into the repair die, the repair die repairs the hook tip angle of the hook-shaped hanger by pressing the hook tip, rotates the turntable until the cross bar is close to the hook tip of the hook-shaped hanger, the piston rod of the piston cylinder contracts to adjust the angle of the cross bar, and the avoidance hole is sleeved on the hook tip of the hook-shaped hanger; the electromagnetic gripper I and the electromagnetic gripper II are powered off and released, and the automatic hanging of the cross bar is completed.

[0008] In some embodiments of the present disclosure, the cross bars to be galvanized are transported close to the turntable through two adjacent conveyor belts, and both ends of the cross bar are respectively on one conveyor belt. The conveyor belt far from the turntable is a downhill conveyor belt, and the cross bar is changed from a horizontal position to a vertical position through the height difference between both ends of the cross bar on different conveyor belts.

[0009] In some embodiments of the present disclosure, several groups of electromagnetic grippers I and electromagnetic grippers II are evenly distributed along the outer edge of the turntable, and avoidance notches are arranged at the relative positions between the electromagnetic gripper I and the electromagnetic gripper II on the turntable to provide avoidance for the outer wall of the cross bar when the cross bar swings vertically.

[0010] In some embodiments of the present disclosure, the adsorption surface of the electromagnetic gripper I is an inner concave surface in the shape of a V.

[0011] In some embodiments of the present disclosure, the adsorption surface of the electromagnetic gripper II is an inner concave surface in the shape of a V.

[0012] In some embodiments of the present disclosure, a suspension hole for passing a suspension rod is provided in the upper part of the hook-shaped hanger.

[0013] In some embodiments of the present disclosure, the repair mold includes a base, and several elastic support members with the same height are vertically provided on the base, and a pressing plate is supported at the upper ends of the elastic support members.

[0014] In some embodiments of the present disclosure, a hanger positioning groove is provided on the upper surface of the base for positioning the lower end portion of the hook-shaped hanger after the hook-shaped hanger is pressed down by the pressing plate.

[0015] In some embodiments of the present disclosure, the rotary alignment mechanism includes a motor and an angle sensor, and the motor is connected with a rotary fork through a speed reducer.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By designing and using the method of vertically holding the cross bar by the electromagnetic gripper I and the electromagnetic gripper II, the vertical fixation of the cross bar is realized. At the same time, the cross bar can be rotated under the action of the rotary alignment mechanism, and in cooperation with the method of sucking the plug towards the plug hole side by the plug and unplugging electromagnet, the automatic extraction of the plug from the avoidance hole is realized. At the same time, by using the contraction of the piston rod, the adjustment of the angle of the cross bar is realized, and the avoidance hole is sleeved on the hook tip of the hook-shaped hanger;

[0018] By designing the method of repairing the hook tip angle of the hook-shaped hanger by pressing down the hook tip of the hook-shaped hanger with the repair mold, the deformation problem of the hook-shaped hanger caused by high galvanizing temperature and the need for dezincification treatment after plating is further avoided, and the next hook-up cooperation between the hook-shaped hanger and the avoidance hole is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the cross bar;

[0020] Figure 2 is an overall schematic diagram of the present invention;

[0021] Figure 3 is a schematic diagram of the first perspective of the turntable in Embodiment 2 of the present invention;

[0022] Figure 4 is Figure 3 a partial enlarged schematic diagram of part A in;

[0023] Figure 5 is Figure 3 a partial enlarged schematic diagram of part B in;

[0024] Figure 6 is a schematic diagram of the second perspective of the turntable in Embodiment 2 of the present invention;

[0025] Figure 7Schematic three-dimensional view of the repair mold of the present invention;

[0026] Description of reference numerals in the figure: 1, cross bar; 11, disc slot; 12, through hole; 121, pin hole; 122, relief hole; 13, pin; 131, anti-disengagement block; 2, turntable; 21, pull-pin electromagnet; 22, relief notch; 31, electromagnetic gripper I; 32, electromagnetic gripper II; 4, piston cylinder; 5, rotary alignment mechanism; 6, hook-shaped hanger; 61, suspension hole; 7, repair mold; 71, base; 711, hanger positioning groove; 72, elastic support; 73, pressing plate. Detailed implementation manners

[0027] In order to better understand the purpose, structure and function of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0028] The serial numbers assigned to the components in this article are only used to distinguish the objects described, and do not have any sequential or technical meanings. The "connection" mentioned in this disclosure, unless specifically stated otherwise, includes both direct and indirect "connections". In the description of the present application, it should be understood that the orientation terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and for a brief description, rather than indicating or implying that the device or unit referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0029] As shown in the attached drawings Figures 2 to 7As shown in the figure, a galvanized automatic hanging process for the crossbar of a socket - type scaffolding is designed, including the following steps: Arrange the crossbars 1 to be galvanized and vertically convey them one by one close to the turntable 2; The turntable 2 is hinged with an electromagnetic gripper I 31 and an electromagnetic gripper II 32 which are arranged opposite to each other up and down in the same vertical plane. The electromagnetic gripper II 32 is hinged with the turntable 2 through a piston cylinder 4; The piston rod of the piston cylinder 4 extends, and the electromagnetic gripper II 32 and the electromagnetic gripper I 31 contact and hold the middle part of the closest crossbar 1; Through the rotary alignment mechanism 5 arranged above the electromagnetic gripper I 31, the held crossbar 1 is rotated so that the pin hole 121 is close to the inner side of the turntable 2. By designing the method of vertically holding the crossbar 1 with the electromagnetic gripper I 31 and the electromagnetic gripper II 32, the vertical fixation of the crossbar 1 is realized, and at the same time, the crossbar 1 can also be rotated under the action of the rotary alignment mechanism 5; Through the pin - pulling electromagnet 21 arranged inside the electromagnetic gripper I 31, the pin 13 is attracted to one side of the pin hole 121. By matching the method of attracting the pin 13 to one side of the pin hole 121 with the pin - pulling electromagnet 21, the automatic extraction of the pin 13 from the avoidance hole 122 is realized; Place the hook - shaped hanger 6 into the repair die 7, and the repair die 7 repairs the hook tip angle of the hook - shaped hanger 6 by pressing down the hook tip of the hook - shaped hanger 6. By designing the method of repairing the hook tip angle of the hook - shaped hanger 6 by pressing down the hook tip of the hook - shaped hanger 6 with the repair die 7, the problem of deformation of the hook - shaped hanger 6 caused by high galvanizing temperature and the need for dezincing treatment after galvanizing is further avoided, ensuring the next hook - hanging cooperation between the hook - shaped hanger 6 and the avoidance hole 122. Rotate the turntable 2 so that the crossbar 1 is close to the hook tip of the hook - shaped hanger 6, and the piston rod of the piston cylinder 4 contracts to adjust the angle of the crossbar 1, and the avoidance hole 122 is sleeved on the hook tip of the hook - shaped hanger 6; The electromagnetic gripper I 31 and the electromagnetic gripper II 32 are powered off and released, and the crossbar 1 completes the automatic hanging.

[0030] In the above - mentioned embodiments, 3 embodiments are listed to implement the above - mentioned technical solutions: Embodiment 1

[0031] This embodiment discloses an automatic hanging process for galvanizing the crossbars of a socket - type scaffolding, which includes the following steps: Arrange the crossbars 1 to be galvanized and vertically convey them one by one close to the turntable 2; The turntable 2 is hinged with an electromagnetic gripper I 31 and an electromagnetic gripper II 32 which are arranged opposite to each other up and down in the same vertical plane. The electromagnetic gripper I 31 and the electromagnetic gripper II 32 are suction grippers of electromagnetic chuck type. The electromagnetic gripper I 31 is hinged to the upper surface of the turntable 2, and the electromagnetic gripper II 32 is hinged to the lower surface of the turntable 2 through a piston cylinder 4; The piston rod of the piston cylinder 4 extends out, and the electromagnetic gripper II 32 and the electromagnetic gripper I 31 come into contact and hold the middle part of the closest crossbar 1; The rotating and aligning mechanism 5 arranged above the electromagnetic gripper I 31 rotates the held crossbar 1 so that the pin hole 121 is close to the inner side of the turntable 2. By designing the method of vertically holding the crossbar 1 with the electromagnetic gripper I 31 and the electromagnetic gripper II 32, the vertical fixation of the crossbar 1 is realized, and at the same time, the crossbar 1 can be rotated under the action of the rotating and aligning mechanism 5; Fix the pin - inserting and extracting electromagnet 21 on the turntable 2 through a connecting piece. The position of the pin - inserting and extracting electromagnet 21 is higher than the height position where the electromagnetic gripper I 31 is located; The pin - inserting and extracting electromagnet 21 arranged inside the electromagnetic gripper I 31 attracts the pin 13 towards the side of the pin hole 121. By cooperating with the method of attracting the pin 13 towards the side of the pin hole 121 by the pin - inserting and extracting electromagnet 21, the automatic extraction of the pin 13 from the avoidance hole 122 is realized; Place the hook - shaped hanger 6 into the repair die 7. The repair die 7 repairs the hook tip angle of the hook - shaped hanger 6 by pressing down the hook tip of the hook - shaped hanger 6. By designing the method of repairing the hook tip angle of the hook - shaped hanger 6 by pressing down the hook tip of the hook - shaped hanger 6 with the repair die 7, the problem of deformation of the hook - shaped hanger 6 caused by high galvanizing temperature and the need for dezincification treatment after plating is further avoided, ensuring the next hooking cooperation between the hook - shaped hanger 6 and the avoidance hole 122. Rotate the turntable 2 so that the crossbar 1 is close to the hook tip of the hook - shaped hanger 6, and the piston rod of the piston cylinder 4 contracts to adjust the angle of the crossbar 1, and the avoidance hole 122 is sleeved on the hook tip of the hook - shaped hanger 6; The electromagnetic gripper I 31 and the electromagnetic gripper II 32 are powered off and released, and the crossbar 1 completes the automatic hanging.

[0032] Among them, the turntable 2 is rotated manually, and the cross bar held by the electromagnetic gripper I 31 and the electromagnetic gripper II 32 can be transferred to the hook-shaped hanger 6; the cross bar 1 to be galvanized is sequentially transferred to the turntable 2 through the hanging rod and the hook; the adsorption surface of the electromagnetic gripper I 31 is a concave surface in the shape of a V, and the concave surface in the shape of a V can be a V-shaped concave surface, an asymmetric V-shaped concave surface, a U-shaped concave surface, etc., which can provide at least two linear contacts for the cross bar 1, ensuring the adsorption quality and facilitating rotation at the same time; the upper part of the hook-shaped hanger 6 is provided with a suspension hole 61 for passing the hanging rod, and the hook-shaped hanger 6 is transported close to the turntable 2 or undergoes the galvanizing process through the hanging rod; the repair die 7 includes a base 71, and several elastic support members 72 with the same height are vertically arranged on the base 71. The upper ends of the elastic support members 72 support a pressure plate 73. The elastic support members 72 can be support coil springs or elastic rubber columns, and their function is to realize the rebound of the pressure plate 73 after the hook tip is repaired. Embodiment 2

[0033] As Figures 2 to 7 shown, this embodiment discloses an automatic hanging process for galvanizing the cross bar of a socket-type scaffolding. The difference between this embodiment and Embodiment 1 is that the turntable 2 is equipped with a motor and a disk feeder, and the disk feeder drives the turntable 2 to rotate as required; the cross bar 1 to be galvanized is transported close to the turntable 2 through two adjacent conveyor belts. The general direction of the conveyor belts is tangent to the turntable 2. The two ends of the cross bar 1 are respectively on one conveyor belt. The conveyor belt far from the turntable 2 is a downhill conveyor belt. The cross bar 1 is changed from a horizontal position to a vertical position through the height difference between the two ends of the cross bar 1 on different conveyor belts. When the cross bar 1 approaches the turntable 2, the electromagnetic gripper I 31 and the electromagnetic gripper II 32 are activated and adsorb the cross bar 1 to complete the holding; a group of electromagnetic gripper I 31 and electromagnetic gripper II 32 are evenly distributed along the outer edge of the turntable 2. The turntable 2 is provided with an avoidance notch 22 at the relative position between the electromagnetic gripper I 31 and the electromagnetic gripper II 32, which is used to provide avoidance for the outer wall of the cross bar 1 when the cross bar 1 swings vertically, preventing the outer wall of the cross bar 1 from interfering with the outer edge of the turntable and also enabling rotation with a smaller centrifugal force of the cross bar 1. The adsorption surface of the electromagnetic gripper I 31 is a concave surface in the shape of a V; the adsorption surface of the electromagnetic gripper II 32 is a concave surface in the shape of a V; the upper surface of the base 71 is provided with a hanger positioning groove 711, which is used to provide positioning for the lower end of the hook-shaped hanger 6 after the hook-shaped hanger 6 is pressed down by the pressure plate 73, preventing the hook-shaped hanger 6 from shifting after being pressed down by the pressure plate 73. Embodiment 3

[0034] This embodiment discloses an automatic galvanizing hanging process for the crossbar of a socket - type scaffolding. The difference between this embodiment and Embodiment 2 is that the rotation and alignment mechanism 5 includes a motor and an angle sensor. The motor is vertically connected with a rotating fork through a reducer. When the angle sensor senses that the position of the pin hole 121 of the crossbar 1 is not in the direction close to the inner side of the turntable 2, the rotating fork presses down and extends into the gap at the upper end of the crossbar 1. After the rotating fork rotates, the rotation of the angle of the crossbar 1 can be realized. When the angle sensor senses that the position of the pin hole 121 is close to the inner side of the turntable 2, the fork retracts.

[0035] It can be understood that the present invention is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. An automatic hanging process for galvanizing the crossbar of a button - and - loop type scaffolding, characterized in that, The steps include: Arrange the crossbars (1) to be galvanized and convey them vertically one by one close to the turntable (2); the turntable (2) is hinged with an electromagnetic gripper I (31) and an electromagnetic gripper II (32) which are arranged opposite to each other up and down in the same vertical plane, and the electromagnetic gripper II (32) is hinged with the turntable (2) through a piston cylinder (4); the piston rod of the piston cylinder (4) extends, and the electromagnetic gripper II (32) and the electromagnetic gripper I (31) contact and hold the middle part of the closest crossbar (1); rotate the held crossbar (1) to make the pin hole (121) close to the inner side of the turntable (2) through the rotary alignment mechanism (5) arranged above the electromagnetic gripper I (31); suck the pin (13) towards the side of the pin hole (121) through the plug-in pin electromagnet (21) arranged inside the electromagnetic gripper I (31); place the hook-shaped hanger (6) into the repair die (7), and the repair die (7) repairs the hook tip angle of the hook-shaped hanger (6) by pressing down the hook tip of the hook-shaped hanger (6), rotate the turntable (2) until the crossbar (1) is close to the hook tip of the hook-shaped hanger (6), the piston rod of the piston cylinder (4) contracts, realize the angle adjustment of the crossbar (1), and sleeved the avoidance hole (122) on the hook tip of the hook-shaped hanger (6); the electromagnetic gripper I (31) and the electromagnetic gripper II (32) are powered off and released, and the crossbar (1) completes automatic hanging.

2. The galvanized automatic hanging process for the cross bar of the socket and spigot scaffolding according to claim 1, characterized in that, The crossbars (1) to be galvanized are conveyed close to the turntable (2) through two adjacent conveyor belts, and both ends of the crossbar (1) are respectively on one conveyor belt, wherein the conveyor belt far from the turntable (2) is a downhill conveyor belt, and the crossbar (1) is changed from a horizontal position to a vertical position through the height difference of both ends of the crossbar (1) on different conveyor belts.

3. The galvanized automatic hanging process for the cross bar of the button - and - loop type scaffolding according to claim 1, wherein, The turntable (2) is evenly distributed with several groups of electromagnetic gripper I (31) and electromagnetic gripper II (32) along the outer edge, and the turntable (2) is provided with an avoidance notch (22) at the relative position between the electromagnetic gripper I (31) and the electromagnetic gripper II (32) for providing avoidance for the outer wall of the crossbar (1) when the crossbar (1) swings vertically.

4. The galvanized automatic hanging process for the cross bar of the button-lock scaffolding according to claim 1, characterized in that, The adsorption surface of the electromagnetic gripper I (31) is a concave surface in the shape of a V.

5. The galvanized automatic hanging process for the crossbar of the socket and spigot scaffolding according to claim 1 or 4, characterized in that The adsorption surface of the electromagnetic gripper II (32) is a concave surface in the shape of a V.

6. The galvanized automatic hanging process for the crossbar of the button - and - socket type scaffolding according to claim 1, characterized in that, The upper part of the hook-shaped hanger (6) is provided with a suspension hole (61) for threading a suspension rod.

7. The galvanized automatic hanging process for the crossbar of the socket and spigot scaffolding according to claim 6, characterized in that The repair die (7) includes a base (71), and several elastic support members (72) with the same height are vertically arranged on the base (71), and a pressing plate (73) is supported at the upper end of the elastic support members (72).

8. The galvanized automatic hanging process for the cross bar of the socket and spigot scaffolding according to claim 7, characterized in that, The upper surface of the base (71) is provided with a hanger positioning groove (711) for positioning the lower end part of the hook-shaped hanger (6) after the hook-shaped hanger (6) is pressed down by the pressing plate (73).

9. The galvanized automatic hanging process of the cross bar of the socket and spigot scaffolding according to claim 1, characterized in that, The rotary alignment mechanism (5) includes a motor and an angle sensor, and the motor is connected with a rotary fork through a reducer.

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