Automatic dezincing device for pipe end of galvanized steel pipe

Abstract

The invention discloses a galvanized steel pipe end head automatic dezincing device which comprises an electromagnetic induction heater, a fixed feeding mechanism and a movable feeding mechanism, the fixed feeding mechanism comprises a roller driving motor and a first material claw lifting motor, and the roller driving motor drives a set of driving rollers; the first material claw lifting motor drives a group of first material claws through a first rotating rocker arm, the movable feeding mechanism comprises a second material claw lifting motor and a group of driven rollers, and the second material claw lifting motor drives a group of second material claws through a second rotating rocker arm.

Description

Technical Field

[0001] The invention relates to the field of machinery, in particular to an automatic zinc removal device for a galvanized steel pipe end. Background Art

[0002] During the production and processing of galvanized steel pipes, it is often necessary to weld flanges and stainless steel pipes. The galvanized layer may cause explosions or pore defects, so the ends of the galvanized steel pipes need to be dezincified.

[0003] In the prior art, the method for removing zinc from the ends of galvanized steel pipes is generally manual removal, which has low production efficiency and is not suitable for large-scale production. Summary of the invention

[0004] Purpose of the invention: The technical problem to be solved by the present invention is to provide an automatic zinc removal device for the ends of galvanized steel pipes in view of the deficiencies in the prior art.

[0005] In order to solve the above technical problems, the present invention discloses an automatic zinc removal device for the end of a galvanized steel pipe, comprising an electromagnetic induction heater, a fixed feeding mechanism and a movable feeding mechanism, the fixed feeding mechanism comprising a roller drive motor and a first material claw lifting motor, the roller drive motor drives a group of active rollers, the first material claw lifting motor drives a group of first material claws through a first rotating rocker arm, the movable feeding mechanism comprises a second material claw lifting motor and a group of driven rollers, the second material claw lifting motor drives a group of second material claws through a second rotating rocker arm.

[0006] In the present invention, the electromagnetic induction heater is provided with two zinc burning heating coils, which are arc-shaped structures and are adapted to the steel pipes, so as to facilitate the removal of the zinc layer on the pipe ends.

[0007] In the present invention, the first material claws and the second material claws are adapted to the positions of the zinc burning heating coil. A group of first material claws are driven by the first rotating rocker arm, and the outer material claws are used to unload the dezincified steel pipe, and the inner material claws lift the nearby steel pipe to the dezincification station.

[0008] In the present invention, the bottom of the electromagnetic induction heater is arranged on the support track, and the electromagnetic induction heater is driven by a cylinder. After a group of steel pipes are dezincified, the electromagnetic induction heater retreats to prevent the zinc burning heating coil from colliding and interfering with the steel pipes.

[0009] In the present invention, a roller is provided at the bottom of the movable feeding mechanism, and a guide rail is provided at the bottom of the movable feeding mechanism for controlling the distance between the movable feeding mechanism and the fixed feeding mechanism, so as to facilitate adaptation to steel pipes of different lengths.

[0010] In the present invention, the fixed feeding mechanism includes a mounting seat, the active roller is horizontally arranged and installed above the mounting seat, a gear group is provided on the side of the mounting seat, the active roller and the gear group are transmitted through a rack, the roller driving motor drives the gear group through the rack, and the roller driving motor drives the active roller to rotate. During the dezincification process of the steel pipe, the rotation can remove a circle of zinc layer on the end of the pipe.

[0011] In the present invention, a group of rocker gears are also provided on the side of the mounting seat. The first rotating rocker arm and the rocker gear are transmitted through a rack. The first material claw lifting motor is connected to the rocker gear through a rack. The first rotating rocker arm controls the first material claw to always be vertically upward during the rotation of the first rotating rocker arm, and the top always supports the steel pipe.

[0012] In the present invention, there are two rocker arm gears, each of which is connected to a first rotating rocker arm, each of which is connected to a first material claw, and each of which is provided with two grooves on the top of the first material claw for supporting the steel pipe, so as to facilitate supporting the steel pipe and keep the steel pipe stable during the loading and unloading process of the rotating rocker arm.

[0013] In the present invention, the second material jaw is adapted to the position of the first material jaw.

[0014] Beneficial effects: This device can realize automatic zinc removal of galvanized steel pipes, and both loading and unloading are realized automatically, which greatly reduces manual work, has high processing efficiency and low processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more clear.

[0016] Figure 1 It is a schematic diagram of the overall structure Figure 1 ;

[0017] Figure 2 It is a schematic diagram of the overall structure Figure 2

[0018] Figure 3 It is a schematic diagram of steel pipe heating.

[0019] The reference numerals in the figure are: 1. electromagnetic induction heater, 2. fixed feeding mechanism, 2a. roller drive motor, 2b. first material claw lifting motor, 2c. driving roller, 2d. first rotating rocker arm, 2e. first material claw, 2f. mounting seat, 2g. gear set, 2h. rocker arm gear, 2i. groove, 3. movable feeding mechanism, 3a. second material claw lifting motor, 3b. driven roller, 3c. second rotating rocker arm, 3d. second material claw, 4. zinc burning heating coil, 5. bracket track, 6. roller, 7. guide rail. DETAILED DESCRIPTION

[0020] Example:

[0021] like Figure 1 and Figure 2 The present embodiment provides an automatic zinc removal device for the end of a galvanized steel pipe, comprising an electromagnetic induction heater 1, a fixed feeding mechanism 2 and a movable feeding mechanism 3, wherein the fixed feeding mechanism 2 comprises a roller driving motor 2a and a first material claw lifting motor 2b, the roller driving motor 2a drives a group of active rollers 2c, the first material claw lifting motor 2b drives a group of first material claws 2e through a first rotating rocker arm 2d, the movable feeding mechanism 3 comprises a second material claw lifting motor 3a and a group of driven rollers 3b, the second material claw lifting motor 3a drives a group of second material claws 3d through a second rotating rocker arm 3c.

[0022] The electromagnetic induction heater 1 is provided with two zinc burning heating coils 4, and the zinc burning heating coils 4 are of an arc structure.

[0023] The first material claw 2e and the second material claw 3d are adapted to the positions of the zinc-burning heating coil 4.

[0024] The bottom of the electromagnetic induction heater 1 is arranged on the support rail 5, and the electromagnetic induction heater 1 is driven by a cylinder.

[0025] A roller 6 is provided at the bottom of the movable feeding mechanism 2 , and a guide rail 7 is provided at the bottom of the movable feeding mechanism for controlling the distance between the movable feeding mechanism and the fixed feeding mechanism 2 .

[0026] The fixed feeding mechanism 2 includes a mounting seat 2f, a driving roller 2c is horizontally arranged and installed above the mounting seat 2f, a gear set 2g is provided on the side of the mounting seat 2f, the driving roller 2c and the gear set 2g are driven by a rack, and the roller drive motor 2a drives the gear set 2g through the rack.

[0027] A set of rocker gears 2h is also provided on the side of the mounting seat 2f. The first rotating rocker arm 2d and the rocker gear 2h are driven by a rack. The first material claw lifting motor 2b is connected to the rocker gear 2h through a rack.

[0028] There are two rocker gears 2h, each of which is connected to a first rotating rocker arm 2d, each of which is connected to a first material claw 2e, and each of which is provided with two grooves 2i for supporting the steel pipe on the top.

[0029] The second material jaw 3d is positionally matched with the first material jaw 2e.

[0030] The fixed feeding mechanism of this embodiment has an additional roller driving motor than the movable feeding mechanism, and the rest of the structure is the same. The electromagnetic induction heater 1 and the movable feeding mechanism 3 are arranged on both sides of the fixed feeding mechanism 2, and the zinc burning heating coil 4 is located above the gap between the two rollers on the right side of the unloading side. This position is a working station.

[0031] like Figure 3 When this embodiment is in use, before loading, the electromagnetic induction heater 1 together with the zinc burning heating coil 4 is driven by the cylinder to move to the far end away from the fixed loading mechanism to prevent the zinc burning heating coil 4 from colliding and interfering with the loading and unloading steel pipes.

[0032] The first material claw lifting motor 2b and the second material claw lifting motor 3a operate synchronously, keeping the first material claw 2e and the first material claw 3d moving synchronously, with the upper end surfaces parallel. The upper and lower material claws both have grooves 2i, and the number of grooves is the same as the number of steel pipes that need to be loaded and unloaded at the same time, which is two in this embodiment.

[0033] The first rotary rocker arm 2d and the second rotary rocker arm 3c support the first material claw 2e and the first material claw 3d respectively. The grooves of the upper and lower material claws are kept facing upwards and parallel to the horizontal plane by the synchronous chain. A group of first material claws are driven by the first rotary rocker arm. The outer material claws are used to unload the steel pipe to be dezincified, and the inner material claws lift the nearest steel pipe to the dezincification station.

[0034] After loading, the electromagnetic induction heater 1 together with the zinc burning heating coil 4 is moved to the fixed feeding mechanism 2, the zinc burning heating coil 4 is almost overlapped with the end of the steel pipe to be processed, the heater and the roller drive motor 2a are started, and the end of the steel pipe begins to be heated and dezincified during rotation.

[0035] The zinc-burning heating coil 4 is semicircular in shape, which can prevent the zinc from melting and falling onto the heating coil after the temperature rises, causing burning.

[0036] This device uses electromagnetic induction heating technology to remove zinc from the pipe end. The pipe end is heated to the melting and combustion temperature of the zinc layer, and reacts in the air to produce zinc oxide. After the removal is completed, the electromagnetic induction heater retreats along the axial direction to avoid interference with the loading and unloading of the steel pipe. The steel pipe is lifted and unloaded by the loading and unloading mechanism. During the rotation of the rocker arm of the unloading mechanism, the processed material is lifted up, and the material to be processed is also lifted up. Unloading and loading are completed simultaneously, saving process time.

[0037] The present invention provides a concept and method for an automatic zinc removal device for the end of a galvanized steel pipe. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention. All components not specified in this embodiment can be implemented using existing technologies.

Claims

1. An automatic zinc removal device for galvanized steel pipe ends, characterized in that: The invention comprises an electromagnetic induction heater (1), a fixed feeding mechanism (2) and a movable feeding mechanism (3), wherein the fixed feeding mechanism (2) comprises a roller driving motor (2a) and a first material claw lifting motor (2b), the roller driving motor (2a) drives a group of active rollers (2c), the first material claw lifting motor (2b) drives a group of first material claws (2e) via a first rotating rocker arm (2d), and the movable feeding mechanism (3) comprises a second material claw lifting motor (3a) and a group of driven rollers (3b), the second material claw lifting motor (3a) drives a group of second material claws (3d) via a second rotating rocker arm (3c).

2. The automatic zinc removal device for galvanized steel pipe ends according to claim 1 is characterized in that: The electromagnetic induction heater (1) is provided with two zinc-burning heating coils (4), and the zinc-burning heating coils (4) are of an arc-shaped structure.

3. The automatic zinc removal device for galvanized steel pipe ends according to claim 2 is characterized in that: The first material claw (2e) and the second material claw (3d) are adapted to the positions of the zinc burning heating coil (4).

4. The automatic zinc removal device for galvanized steel pipe ends according to claim 1 is characterized in that: The bottom of the electromagnetic induction heater 1 is arranged on a support track (5), and the electromagnetic induction heater (1) is driven by a cylinder.

5. The automatic zinc removal device for galvanized steel pipe ends according to claim 1 is characterized in that: A roller (6) is provided at the bottom of the movable feeding mechanism (2), and a guide rail (7) is provided at the bottom of the movable feeding mechanism for controlling the distance between the movable feeding mechanism and the fixed feeding mechanism (2).

6. The automatic zinc removal device for galvanized steel pipe ends according to claim 1 is characterized in that: The fixed feeding mechanism (2) comprises a mounting seat (2f), a driving roller (2c) arranged horizontally and mounted above the mounting seat (2f), a gear set (2g) being arranged on the side of the mounting seat (2f), the driving roller (2c) and the gear set (2g) being driven by a rack, and the roller driving motor (2a) driving the gear set (2g) via the rack.

7. The automatic zinc removal device for galvanized steel pipe ends according to claim 6 is characterized in that: A group of rocker gears (2h) are also provided on the side of the mounting seat (2f); the first rotating rocker arm (2d) and the rocker gear (2h) are driven by a rack; and the first material claw lifting motor (2b) is connected to the rocker gear (2h) via a rack.

8. The automatic zinc removal device for galvanized steel pipe ends according to claim 7 is characterized in that: There are two rocker arm gears (2h), each of which is connected to a first rotating rocker arm (2d), each of which is connected to a first material claw (2e), and each of which is provided with two grooves (2i) on the top for supporting a steel pipe.

9. The automatic zinc removal device for galvanized steel pipe ends according to claim 8, characterized in that: The second material jaw (3d) is positionally matched with the first material jaw (2e).

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