Automatic feeding and discharging mechanism of electric induction heating heading furnace

Abstract

The utility model discloses an automatic feeding and discharging mechanism of an electric induction heating heading furnace, which solves the problems of low automation degree, high energy consumption and the like in the prior art, and is characterized in that a feeding device consists of a feeding turning plate mechanism, a workpiece aligning device, a transition slope plate (9), a feeding ejector rod mechanism and a feeding slope rack (11), the discharging device is composed of a heading turning plate mechanism, a heading roller way (3), a discharging turning plate mechanism and a material collecting frame (1). The steel pipes are aligned and fed into the furnace, the heating length of the heads of the steel pipes is accurately controlled, and the heating time of the pipe heads is saved. A good heating mode is provided for steel pipe heading, the labor operation mode is improved, the productivity is greatly improved, and compared with a traditional gas heading furnace manual feeding and discharging mode, the steel pipe heading furnace has the advantages that the structure is reasonable and compact, the automation degree is high, the labor intensity is relieved, the accident rate is low, the operation cost is saved, and the product quality is improved. The device can be widely applied to the steel pipe head pinching process.

Description

Technical Field

[0001] The utility model belongs to an automatic loading and unloading mechanism for an electric induction heating heading furnace, and is particularly concerned with improving the automation of the production line, saving labor, shortening the heating time, limiting the heat-sensitive area of ​​the steel pipe, reducing the floor space occupied by the heating furnace, and an operating mode that can improve production efficiency and reduce production costs. Background Art

[0002] Steel pipe heading is an important process before cold drawing of steel pipes. It has always been done by manual loading and unloading. The steel pipe head is heated by a gas furnace before entering the press for heading. As the price of labor and gas continues to rise, the operating cost of the factory has increased. Moreover, the use of a gas heating furnace to heat the steel pipe head radiates a large amount of heat, which inevitably expands the length of the sensitized zone of the steel pipe and seriously affects the quality of the steel pipe product. This involves the problem of operating cost and product quality in the steel pipe heading process.

[0003] Currently, manual loading and unloading operations are adopted, and a gas furnace is used to heat the steel pipe head, resulting in low product quality and high labor costs, which seriously affects product quality and qualification rate. Summary of the Invention

[0004] The purpose of the utility model is to provide an automatic loading and unloading mechanism for an electric induction heating heading furnace, which can improve production efficiency, reduce operating costs, optimize process conditions and improve economic benefits.

[0005] The technical solution of the utility model is as follows: it includes a feeding device, an electric induction heating transmission device, an electric induction heating furnace, a press and a feeding device. The feeding device is composed of a feeding flap mechanism, a workpiece alignment device, a transition ramp plate, a feeding push rod mechanism and a feeding ramp stand. A feeding flap mechanism is set between the electric induction heating transmission device and the workpiece alignment device. An upper stop is set at the front lower end of the feeding ramp stand (11), which is connected to the workpiece alignment device through the transition ramp plate (9). A feeding push rod mechanism is set at the lower end surface of the feeding ramp stand (11). The feeding device is composed of a head flip mechanism, a head roller, a discharge flip mechanism and a collection frame. The head roller is set at the rear of the electric induction heating transmission device and is driven by the head roller motor. A press is set at the workpiece heating end. The head roller is connected to the electric induction heating transmission device through the head flip mechanism. The collection frame is set at the rear of the head roller and is connected through the discharge flip mechanism.

[0006] Further, the upper feeding turnover plate mechanism is composed of an upper feeding turnover plate, an upper feeding turnover plate support, an upper feeding turnover plate shaft and an upper feeding turnover plate cylinder, etc. The upper feeding turnover plate support is fixedly installed on the ground in front of the electric induction heating transmission device. The upper feeding turnover plate has a circular arc-shaped hook at one end, is fixedly installed on the upper feeding turnover shaft through a bearing seat and is installed on the upper feeding turnover plate support, the bottom of the circular arc-shaped hook is provided with a pin shaft hole and is connected with the upper feeding turnover plate cylinder telescopic rod end fixedly installed on the alignment roller support through a pin shaft.

[0007] Further, the electric induction heating transmission device is composed of a transmission support, a V-shaped chain mechanism and a V-shaped chain transmission motor, etc. The V-shaped chain mechanism is composed of a sprocket and a V-shaped chain installed on the transmission support. The V-shaped chain transmission motor drives the sprocket driving shaft to rotate through a gear pair to drive the V-shaped chain to rotate forward. The electric induction heating furnace is installed at the workpiece alignment end of the V-shaped chain mechanism.

[0008] Further, the head striking turnover plate mechanism is composed of a head striking turnover plate, a rotating shaft, a head striking turnover plate crank and a head striking turnover plate cylinder, etc. The rotating shaft is arranged along the length direction of the head striking turnover plate. The shaft is fixedly installed on the head roller support through bearing seats at both ends. The shaft extends out of the bearing seat at one end. The head striking turnover plate crank is installed at the end of the shaft. The other end of the head striking turnover plate crank is connected with a through shaft arranged below the side of the head roller. The through shaft has a head striking turnover plate cylinder at the end.

[0009] The beneficial effects of the present invention are as follows: by adopting electric induction heating of steel pipe heads and inclined platform for material distribution, the steel pipes are pushed from the inclined platform to the alignment roller by the loading push rod, the aligned steel pipes are sent to the V-chain groove by the loading flap mechanism, and the steel pipes are slowly fed into the furnace one by one under the support of the chain. After the steel pipes are heated, the heated steel pipes are sent to the heading roller by the heading flap mechanism, and the pipe heads are automatically headed and pressed by the press. After the steel pipes are headed, they are moved to the collection frame by the unloading flap mechanism. Each steel pipe is put into the furnace after alignment, and the heating length of the steel pipe head is accurately controlled, which saves the heating time of the pipe head. It not only provides a good heating method for steel pipe heading, improves the labor operation form, but also greatly improves productivity. Compared with the manual loading and unloading method of the traditional gas-fired heading furnace, it has the advantages of reasonable and compact structure, high degree of automation, reduced labor intensity, low accident rate, saved operating cost, improved product quality, etc., and can be widely used in the steel pipe head pressing process.

[0010] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the main view of the utility model;

[0012] Figure 2 This is a side view of the utility model;

[0013] Figure 3 This is a top view of the utility model;

[0014] In the figure: 1 is the collecting frame, 2 is the unloading flap, 3 is the heading roller, 4 is the heading flap, 5 is the electric induction heating furnace, 6 is the V-chain mechanism, 7 is the loading flap, 8 is the alignment roller, 9 is the transition ramp plate, 10 is the loading push rod, 11 is the loading ramp stand, 12 is the push rod cylinder, 13 is the push rod guide wheel group, 14 is the loading flap cylinder, 15 is the loading flap shaft, 16 is the heading flap crank, 17 is the heading flap cylinder, 18 is the unloading flap cylinder, 19 is the unloading flap shaft, 20 is the alignment roller motor, 21 is the heading roller motor, 22 is the V-chain drive motor, 23 is the V-chain, 24 is the press, and 25 is the alignment mechanism. DETAILED DESCRIPTION

[0015] like Figure 1 ,picture, Figure 3As shown, the automatic loading and unloading mechanism of the electric induction heating starting furnace includes a loading device, an electric induction heating transmission device, an electric induction heating furnace 5, a press 24, and a loading device. The loading device is composed of a loading flap mechanism, a workpiece alignment device, a transition ramp plate, a loading push rod mechanism, and a loading ramp stand 11. The loading flap mechanism is arranged between the electric induction heating transmission device and the workpiece alignment device. The loading flap mechanism is composed of a loading flap 7, a loading flap bracket, a loading flap shaft 15, and a loading flap cylinder 14. The loading flap bracket is fixedly mounted on the ground in front of the electric induction heating transmission device. One end of the loading flap 7 is provided with an arc-shaped hook, and the middle part is fixed to the loading flip shaft installed on the loading flap bracket through a bearing seat. The bottom of the arc-shaped hook is provided with a pin hole, which is connected to the end of the telescopic rod of the loading flap cylinder 14 fixedly mounted on the alignment roller bracket through the pin. An upper stop is provided at the front lower end of the loading ramp 11, which is connected to the workpiece alignment device via a transition ramp plate 9. A loading push rod mechanism is provided at the lower end surface of the loading ramp 11. The loading push rod mechanism is composed of a loading push rod 10, a push rod cylinder 12, and a push rod guide wheel assembly 13. The loading push rod 10 is placed on the lower end surface of the loading ramp 11. A pin shaft seat is provided on one side and is connected to the telescopic rod of the push rod cylinder 12 fixed to the support foot of the loading ramp 11 via a locking shaft. The push rod guide wheel assembly 13 provided on the other side cooperates with the push rod guide rail fixed to the ground. The workpiece alignment device is composed of an alignment roller bracket, an alignment roller 8, an alignment roller motor 20, and an alignment mechanism 25. The alignment roller bracket is fixedly mounted on the ground in front of the flap mechanism. The alignment roller 8 is fixedly mounted on the alignment roller bracket via a bearing seat and is connected to the loading ramp 11 set in front via a transition ramp plate 9. An alignment mechanism 25 is provided at one end of the alignment roller. The electric induction heating transmission device includes a transmission bracket, a V-chain mechanism 6 and a V-chain transmission motor 22. The V-chain mechanism 6 is composed of a sprocket and a V-chain 23 arranged on the transmission bracket. The V-chain transmission motor 22 drives the sprocket driving shaft to rotate through a gear pair, driving the V-chain 23 to rotate forward. The electric induction heating furnace 5 is arranged at the workpiece alignment end of the V-chain mechanism 6.

[0016] The unloading device consists of a header flap mechanism, a header roller 3, a discharge flap mechanism, and a collection frame 1. The header roller 3 is located behind the electric induction heating transmission device and is driven by the header roller motor 21. A press 24 is provided at the workpiece heating end. The header roller 3 is connected to the electric induction heating transmission device via the header flap mechanism. This header flap mechanism consists of a header flap 4, a rotating shaft, a header flap crank 16, and a header flap cylinder 17. The rotating shaft is provided along the length of the header flap 4. Both ends of the shaft are fixed to the header roller bracket using bearing seats. One end of the shaft extends out of the bearing seat, and the header flap crank 16 is installed at the end of the shaft. The other end of the header flap crank 16 is connected to a through shaft located below the side of the header roller. The through shaft is provided at the end of the through shaft with a header flap cylinder 17. The collection frame 1 is located behind the header roller 3 and connected via the discharge flap mechanism. The unloading flap mechanism is composed of a unloading flap 2, a flap bracket, a flap shaft 19 and a unloading flap cylinder 18. The unloading flap bracket is fixedly installed on the ground behind the leading roller. An arc-shaped hook is provided at one end of the unloading flap 2, and the middle part is fixed on the unloading flip shaft installed on the unloading flap bracket through a bearing seat. A pin hole is provided at the bottom of the arc-shaped hook, which is connected to the end of the telescopic rod of the unloading flap cylinder 18 fixedly installed on the leading roller bracket through the pin. The hook end of the unloading flap 2 corresponds to the leading roller, and the end corresponds to the aggregate frame 1 arranged at the rear.

[0017] The utility model discloses when implementing, the steel pipe is hoisted to the feeding inclined ramp bench 11 in bunch, and is uniformly arranged after untying the bundle rope.The feeding ejector rod 10 of feeding ejector rod mechanism is driven under the ejector rod cylinder 12 and lifts 1 steel pipe, and the upper stop of the front lower end of feeding inclined ramp bench 11 is crossed, reaches the alignment roller way through the transition inclined plate 9;The alignment roller 8 is supported and is driven under the alignment roller way motor 20 and runs forward, and the alignment roller 8 stops rotating after meeting the alignment mechanism 25.The alignment mechanism can adjust the steel pipe heating length into the furnace, can guarantee that all steel pipes are according to the process requirement, guarantees the same heating length.After the steel pipe is aligned on the alignment roller way, the feeding flap cylinder 14 on the feeding flap mechanism lifts the feeding flap 7, and the steel pipe is supported and slides into the V type chain mechanism 6 simultaneously.The V type chain mechanism 6 is formed by V type chain, V type chain transmission motor and the like, and the steel pipe is supported and enters the induction furnace 5 hearth heating one by one.The induction heating furnace 5 size compares the gas heating furnace and occupies the small land, and the heating efficiency is high, and the set length of heating steel pipe is more accurate.After the steel pipe is heated in the hearth, the head flap cylinder 17 on the head flap mechanism pulls the head flap crank 16, and the head flap 4 is lifted, and the steel pipe slides to the head roller 3.The steel pipe is turned into the head roller 3 and enters the press and is pressed into the pipe head.The head roller on the head roller 3 is driven under the head roller motor 21 and runs to the opposite direction of the press 24 after the steel pipe head is pressed into the pipe, and leaves the press working area.After the steel pipe leaves the press working area, enters the unloading flap mechanism working area, and the unloading flap cylinder 18 on the unloading flap mechanism lifts the unloading flap 2, and the unloading flap 2 supports the steel pipe and slides into the material collecting frame 1, and the steel pipe head operation is completed.

[0018] The V type chain mechanism drive motor 22 adopts frequency conversion control, can control the running speed according to different product process time;The alignment roller way motor 20 and the head roller motor 21 all adopt frequency conversion control, can control the production rhythm of feeding and unloading;The driving cylinder of same mechanism is controlled by electromagnetic synchronous valve, guarantees the synchronism when completing once turning over material.

[0019] The utility model has the advantages of reasonable and compact structure, high degree of automation, reduced labor intensity, low accident rate, saving operation cost, improved product quality and the like, and is a production line with excellent quality.

Claims

1. An automatic loading and unloading mechanism for an electric induction heating head furnace, comprising a loading device, an electric induction heating transmission device, an electric induction heating furnace (5), a press (24) and a unloading device, characterized in that: The feeding device is composed of a feeding flap mechanism, a workpiece alignment device, a transition ramp plate (9), a feeding push rod mechanism and a feeding ramp stand (11). The feeding flap mechanism is arranged between the electric induction heating transmission device and the workpiece alignment device. An upper stop is arranged at the front lower end of the feeding ramp stand (11), which is connected to the workpiece alignment device through the transition ramp plate (9), and a feeding push rod mechanism is arranged on the lower end surface of the feeding ramp stand (11); the unloading device is composed of a heading flap mechanism, a heading roller (3), a discharge flap mechanism and a collection frame (1). The heading roller (3) is arranged at the rear of the electric induction heating transmission device and is driven by the heading roller motor (21). A press (24) is arranged at the workpiece heating end. The heading roller (3) and the electric induction heating transmission device are connected through the heading flap mechanism. The collection frame (1) is arranged at the rear of the heading roller (3) and is connected through the discharge flap mechanism.

2. The automatic loading and unloading mechanism of the electric induction heating head furnace according to claim 1 is characterized in that: The loading flap mechanism is composed of a loading flap (7), a loading flap bracket, a loading flap shaft (15) and a loading flap cylinder (14). The loading flap bracket is fixedly installed on the ground in front of the electric induction heating transmission device. An arc-shaped hook is provided at one end of the loading flap (7). The middle part is fixed on the loading flip shaft installed on the loading flap bracket through a bearing seat. A pin hole is provided at the bottom of the arc-shaped hook. The pin is connected to the end of the telescopic rod of the loading flap cylinder (14) fixedly installed on the alignment roller bracket. The workpiece alignment device is composed of an alignment roller bracket, an alignment roller (8), an alignment roller motor (20) and an alignment mechanism (25). The alignment roller bracket is fixedly installed on the On the ground in front of the flap mechanism, the alignment roller (8) is fixedly installed on the alignment roller bracket through a bearing seat, and is connected to the loading ramp platform (11) arranged in the front through a transition ramp plate (9), and an alignment mechanism (25) is set at one end of the alignment roller; the loading ejector mechanism is composed of a loading ejector (10), an ejector cylinder (12) and an ejector guide wheel group (13), the loading ejector (10) is placed on the lower end surface of the loading ramp platform (11), a pin shaft seat is set on one side and is connected to the ejector cylinder (12) telescopic rod fixedly set on the supporting foot of the loading ramp platform (11) through a locking shaft, and the ejector guide wheel group (13) set on the other side cooperates with the ejector guide rail fixedly installed on the ground.

3. The automatic loading and unloading mechanism of the electric induction heating header furnace according to claim 1 or 2, characterized in that: The electric induction heating transmission device comprises a transmission bracket, a V-chain mechanism (6) and a V-chain transmission motor (22). The V-chain mechanism (6) is composed of a sprocket and a V-chain (23) arranged on the transmission bracket. The V-chain transmission motor (22) drives the sprocket driving shaft to rotate through a gear pair, thereby driving the V-chain (23) to rotate forward. The electric induction heating furnace (5) is arranged at the workpiece alignment end of the V-chain mechanism (6).

4. The automatic loading and unloading mechanism of the electric induction heating header furnace according to claim 3 is characterized in that: The head flip mechanism is composed of a head flip (4), a rotating shaft, a head flip crank (16) and a head flip cylinder (17). The rotating shaft is arranged along the length direction of the head flip (4). Both ends of the shaft are fixedly mounted on the head roller bracket by bearing seats. One end of the shaft extends out of the bearing seat. The head flip crank (16) is installed at the end of the shaft. The other end of the head flip crank (16) is connected to a through shaft arranged at the lower side of the head roller. The head flip cylinder (17) is arranged at the end of the through shaft. The unloading flip mechanism is composed of a unloading flip (2), a flip support The unloading flap bracket is fixedly mounted on the ground behind the head roller, and an arc-shaped hook is provided at one end of the unloading flap (2). The middle part is fixed on the unloading flip shaft mounted on the unloading flap bracket through a bearing seat, and a pin hole is provided at the bottom of the arc-shaped hook. The pin hole is connected to the end of the telescopic rod of the unloading flap cylinder (18) fixedly mounted on the head roller bracket. The hook end of the unloading flap (2) corresponds to the head roller, and the end corresponds to the collecting frame (1) arranged at the rear.

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