Continuous small copper pipe fitting annealing device

Abstract

The invention relates to the technical field of copper pipe fitting machining, and discloses a continuous small copper pipe fitting annealing device which comprises a box body, a steel wire mesh conveying belt, an input belt wheel, an output belt wheel, a tensioning wheel, a driving wheel and a guide wheel. An arching adjusting mechanism is arranged below the section A, located between the input belt wheel and the output belt wheel, of the steel wire mesh conveying belt; the arching adjusting mechanism comprises two groups of adjusting wheels which are arranged in parallel left and right, and the adjusting wheels are attached to the bottom of the section A; the outer wall of the adjusting wheel is arranged in a vortex line diverging mode. The overall length of the section A can be increased through the arching adjusting mechanism, more workpieces can be laid under the condition that the thicknesses of laid workpieces are the same, and therefore the annealing efficiency is improved, and meanwhile the occupied space is not increased.

Description

Technical Field

[0001] The invention relates to the technical field of copper pipe processing, in particular to a continuous small-sized copper pipe annealing device. Background Art

[0002] Small copper pipe fittings such as straight ends, elbows, and tees need to be annealed to eliminate processing stress and improve their performance. Figure 7 As shown, the device includes a resistance furnace and a horizontal conveyor belt that passes through it. During annealing, workpieces such as small copper pipes are laid flat on the conveyor belt. As the conveyor belt slowly moves, the workpieces are heated in the resistance furnace for a period of time, completing the annealing process. However, existing annealing equipment has relatively low annealing efficiency. To improve annealing efficiency, the horizontal conveyor belt must be lengthened, which increases the overall length of the equipment and thus the space required. Furthermore, existing annealing equipment has difficulty controlling the thickness of the workpieces laid on the conveyor belt. Summary of the Invention

[0003] The purpose of the present invention is to provide a continuous small copper pipe annealing device, which can lengthen the overall length of segment A through the arch adjustment mechanism, so that more workpieces can be laid when the thickness of the laid workpieces is the same, thereby improving the annealing efficiency without increasing the occupied space.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A continuous small copper pipe annealing device includes a housing, a wire mesh conveyor belt, an input pulley, an output pulley, a tensioning pulley, a driving pulley, and a guide pulley. The input pulley and the output pulley are arranged at the same height and are rotatably connected to the front and rear ends of the housing, respectively. The wire mesh conveyor belt is tensioned on the input pulley, the output pulley, the tensioning pulley, the driving pulley, and the guide pulley. The driving pulley is connected to a motor that drives it to rotate. The motor is electrically connected to a control panel. The guide pulley is rotatably connected to the interior of the housing. A camber adjustment mechanism is provided below section A of the wire mesh conveyor belt located between the input pulley and the output pulley. The arch adjustment mechanism includes two groups of adjustment wheels arranged in parallel on the left and right sides, and the adjustment wheels are close to the bottom of segment A; the outer walls of the adjustment wheels are arranged to diverge in a spiral line.

[0005] When the workpiece (small copper pipe) needs to be annealed, the workpiece is laid flat on the wire mesh conveyor belt and flows from the input pulley end to the output pulley end. The wire mesh conveyor belt flows slowly, so that the workpiece on the wire mesh conveyor belt is heated in the box for a period of time, thereby heat treating the workpiece; The arch adjustment mechanism arches segment A upward, thereby increasing the overall length of segment A (i.e., the upper end of the wire mesh conveyor belt between the input and output pulleys). This allows more workpieces to enter the box for heat treatment simultaneously while maintaining the same laying thickness, thereby improving heat treatment efficiency by approximately 4%-8%. Furthermore, as the distance between the outer wall of the adjusting wheel and its rotational center gradually increases, the arch angle can be adjusted to any desired value within a certain range, enabling infinite adjustment.

[0006] The present invention is further configured as follows: each group of adjusting wheels is symmetrically provided with two adjusting wheels in the front and rear, and the two adjusting wheels are fixed on the adjusting shaft; the two ends of the adjusting shaft are rotatably connected to the box body, one end of the adjusting shaft is connected to a synchronous gear, and the two synchronous gears are engaged with a driving gear A, and the driving gear A is fixed on the motor shaft of the servo motor, and the servo motor is fixed on the box body and electrically connected to the control panel.

[0007] When it is necessary to adjust the arch degree of segment A, the control panel is operated to control the rotation of the servo motor, which drives the driving gear A to rotate. The driving gear A drives the two synchronous gears to rotate at the same speed and in the same direction. The synchronous gears drive the corresponding adjusting wheels to rotate through the adjusting shafts. The outer wall of the adjusting wheel is abutted against the bottom of segment A, thereby arching segment A upward. The angle of rotation of the adjusting wheel A can be precisely controlled by the servo motor.

[0008] The present invention is further configured as follows: a plurality of large semicircular grooves are formed on the outer wall of the adjusting wheel, two large semicircular grooves aligned with each other in two adjusting wheels of the same group are sleeved with rollers, and the outer ends of the rollers are arranged higher than the outer walls of the adjusting wheels.

[0009] The bottom surface of the large semicircular groove can axially limit the end of the roller, and the roller can reduce the adjustment resistance when the adjusting wheel rotates, and reduce the conveying resistance between the wire mesh conveyor belt and the adjusting wheel during the conveying of the wire mesh conveyor belt.

[0010] The present invention further provides that: the adjusting wheel is formed with a limit groove, and a limit rod is sleeved in the limit groove. Through the cooperation between the limit rod and the limit groove, the rotation range and the rotation limit position of the adjusting wheel can be limited, and the zero point position of the adjusting wheel can also be calibrated.

[0011] The present invention is further configured as follows: two tensioning wheels are provided at the front and rear and are rotatably connected to the same support shaft, the support shaft is fixed to one end of the slider, the other end of the slider is inserted into the sliding sleeve, an electric telescopic cylinder is fixed to the end of the sliding sleeve away from the tensioning wheel, the telescopic rod end of the electric telescopic cylinder is connected to the slider through a pressure sensor, the sliding sleeve is fixed in the box, and the electric telescopic cylinder and the pressure sensor are both electrically connected to the control panel.

[0012] The pressure sensor can monitor the tension of the wire mesh conveyor belt in real time. When the adjusting wheel is rotated, the tension of the wire mesh conveyor belt changes. The control panel processes the signal of the pressure sensor and drives the telescopic rod of the corresponding electric telescopic cylinder to move, thereby adjusting the position of the slider, and then adjusting the position of the tensioning wheel to transmit the wire mesh conveyor belt.

[0013] The present invention is further configured as follows: an electric heater is provided on the upper portion of the box; A heat circulation fan is provided on the top of the box; the control panel is electrically connected to the electric heater and the heat circulation fan; A baffle is provided below the two sets of regulating wheels, which separates the box into an upper annealing chamber and a lower power chamber.

[0014] The electric heater heats the upper space of the box, so that the workpiece passing through the box can be heated; the heat in the box can be distributed by the heat circulation fan; The baffle can prevent the heat in the upper annealing chamber from entering the lower power chamber, thereby reducing heat loss and improving energy utilization.

[0015] The present invention is further configured as follows: the baffle includes a pair of oblique guide plates, a pair of arc guide plates, a pair of transverse guide plates and a pair of arc baffles that are symmetrically arranged on the left and right.

[0016] The heat can be conducted back to the wire mesh conveyor belt through the inclined guide plate, so that the workpieces on the wire mesh conveyor belt are heated evenly from top to bottom.

[0017] The present invention is further configured as follows: a feed notch and a discharge notch are respectively provided at the front and rear ends of the box body; the input pulley is arranged on the outside of the feed notch, and the output pulley is arranged on the outside of the discharge notch; The upper end of the feed notch is provided with a material laying plate with an adjustable angle; The upper end of the material discharging notch is provided with a material blocking plate with an adjustable angle, and the inner end of the material blocking plate is formed with an arc material guiding folding plate.

[0018] By rotating the paving plate, the distance between the paving plate and segment A and the slope of segment A can be adjusted; by controlling the distance between segment A and the inner end of the paving plate, the thickness of the workpiece laid on segment A can be adjusted to ensure consistent laying thickness; By rotating the material-control plate, the distance between the inner end of the material-control plate and segment A can be adjusted. The smaller the distance between the two, the less likely the workpiece will automatically slide out. At the same time, the material-control plate contacts the workpiece and provides a friction resistance to the workpiece, which can also prevent the workpiece on segment A from sliding out freely. The arc material-guide folding plate can be used to guide the workpiece discharge and prevent the workpiece from entering above the material-control plate.

[0019] The present invention is further configured as follows: the material spreading plate and the material blocking plate are each provided with an angle adjustment device; The angle adjustment device includes a "B"-shaped base and a rotating part, and the base is detachably fixed to the box body by screws; The inner end of the arc portion of the base is formed with a fan-shaped notch, and the upper side wall of the fan-shaped notch is formed with an arc groove; the rotating part includes an arc plate A, an arc plate B, and a connecting plate connecting the arc plates A and B; the arc plate A is inserted into the arc groove, and the arc plate B is abutted against the outer wall of the arc portion of the base; The arc plate A is formed with an arc-shaped rack, which is meshed with a gear. The gear is fixed with a worm wheel via a synchronous shaft, and the worm wheel is meshed with a worm. The end of the worm wheel is formed with a square head, and the square head does not extend outside the base. The synchronous shaft and the worm are rotatably connected in the base. The material spreading plate and the material blocking plate are each integrally formed on the corresponding rotating part; The lower bottom surfaces of the material spreading plate and the material blocking plate are respectively arranged tangent to the arc portion of the corresponding base.

[0020] The square head is rotated by the tool, and the square head drives the worm to rotate, and the worm drives the worm wheel to rotate, and the worm wheel drives the gear to rotate synchronously through the synchronous shaft, and the gear drives the arc rack to rotate, thereby driving the rotating part to rotate, and the rotating part drives the corresponding paving plate or material blocking plate to rotate, thereby adjusting the distance between the end of the paving plate or material blocking plate and segment A.

[0021] The outstanding effects of the present invention are: Compared with the existing technology, the overall length of segment A can be lengthened by the arch adjustment mechanism. When the thickness of the laid workpieces is the same, more workpieces can be laid, thereby improving the annealing efficiency without increasing the occupied space. The distance between the paving plate and segment A can be adjusted by the angle-adjustable paving plate, thereby adjusting the paving thickness of the workpiece and ensuring that the paving thickness of the workpiece is uniform; The material blocking plate can increase the resistance when the workpiece is discharged, and can prevent the workpiece from sliding out freely and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of the annealing device of Example 1; Figure 2 It is a front view of Example 1; Figure 3 for Figure 1 A partial enlarged view of A; Figure 4 Schematic diagram of the structure of the annealing device of Example 2; Figure 5 for Figure 4 A partial enlarged view of B; Figure 6 for Figure 4 A partial enlarged view of C; Figure 7 This is a simple schematic diagram of an existing annealing device.

[0023] Reference numerals: 10 housing; 11 control panel; 12 electric heater; 13 heat circulation fan; 14 baffle; 101. Upper annealing chamber; 102. Lower power chamber; 103. Feed notch; 104. Discharge notch; 141. Oblique guide plate; 142. Arc guide plate; 143. Horizontal guide plate; 144. Arc baffle; 20. Wire mesh conveyor belt; 21. Pulley; 22. Output pulley; 23. Motor; 24. Drive wheel; 25. Guide wheel; 201, Section A; 30. Arch adjustment mechanism; 301. Adjustment wheel; 302. Adjustment shaft; 303. Synchronous gear; 304. Drive gear A; 305. Servo motor; 306. Roller; 3011, large semicircular sink; 3012, limit groove; 40. Tensioning pulley; 41. Support shaft; 42. Slider; 43. Sliding sleeve; 44. Electric telescopic cylinder; 45. Pressure sensor; 50. Material spreading plate; 51. Material blocking plate; 52. Base; 53. Rotating part; 54. Gear; 55. Synchronous shaft; 56. Worm gear; 57. Worm; 58. Limit stopper; 511, arc guide folding plate; 521, fan-shaped notch; 522, arc groove; 531, arc plate A; 532, arc plate B; 533, connecting plate; 534, arc rack; 571. Square head. DETAILED DESCRIPTION

[0024] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0025] The following references Figures 1 to 6 The present invention will be described: Example

[0026] A continuous small copper pipe annealing device, such as Figure 1 、 Figure 2As shown, it includes a box body 10, a wire mesh conveyor belt 20, an input pulley 21, an output pulley 22, a tensioning pulley 40, a driving pulley 24 and a guide pulley 25. The input pulley 21 and the output pulley 22 are arranged at the same height and are rotatably connected to the front and rear ends of the box body 10 respectively. The wire mesh conveyor belt 20 is tensioned on the input pulley 21, the output pulley 22, the tensioning pulley 40, the driving pulley 24 and the guide pulley 25. The driving pulley 24 is connected to a motor 23 for driving it to rotate. The motor 23 is electrically connected to the control panel 11. The wire mesh conveyor belt 20 is provided with a camber adjustment mechanism 30 below the segment A201 between the input pulley 21 and the output pulley 22. The arch adjustment mechanism 30 includes two groups of adjustment wheels 301 arranged in parallel on the left and right sides. The adjustment wheels 301 are attached to the bottom of the segment A201. The outer wall of the adjustment wheel 301 is arranged to diverge in a spiral line.

[0027] In this embodiment, each set of adjustment wheels 301 is symmetrically arranged front and back. The two adjustment wheels 301 are fixed to an adjustment shaft 302. Both ends of the adjustment shaft 302 are rotatably connected to the housing 10. One end of the adjustment shaft 302 is connected to a synchronous gear 303. The two synchronous gears 303 mesh with a drive gear A 304. The drive gear A 304 is fixed to the motor shaft of a servo motor 305. The servo motor 305 is fixed to the housing 10 and electrically connected to the control panel 11. 10. The continuous small copper pipe annealing device according to claim 1 is characterized in that: a limiting groove 3012 is formed on the adjustment wheel 301, and a limiting rod 307 is sleeved within the limiting groove 3012. The limiting rod is fixed to the housing.

[0028] In this embodiment, two tensioning wheels 40 are provided at the front and rear and are rotatably connected to the same support shaft 41. The support shaft 41 is fixed to one end of a slider 42, and the other end of the slider 42 is inserted into a sleeve 43. An electric telescopic cylinder 44 is fixed to the end of the sleeve 43 away from the tensioning wheel 40. The end of the telescopic rod of the electric telescopic cylinder 44 is connected to the slider 42 through a pressure sensor 45. The sleeve 43 is fixed in the box body 10, and the electric telescopic cylinder 44 and the pressure sensor 45 are both electrically connected to the control panel 11.

[0029] In this embodiment, an electric heater 12 is provided on the upper portion of the box 10; A heat circulation fan 13 is provided on the top of the box body 10; A baffle plate 14 is provided below the two sets of regulating wheels 301 , and the baffle plate 14 divides the box body 10 into an upper annealing chamber 101 and a lower power chamber 102 .

[0030] The baffle 14 of this embodiment includes a pair of oblique guide plates 141 symmetrically arranged on the left and right, a pair of arc guide plates 142 , a pair of transverse guide plates 143 and a pair of arc baffles 144 .

[0031] like Figure 3 As shown, the outer wall of the adjusting wheel 301 of this embodiment is formed with multiple large semicircular grooves 3011. Two large semicircular grooves 3011 aligned with each other in the same group of two adjusting wheels 301 are sleeved with rollers 306, and the outer ends of the rollers 306 are arranged higher than the outer wall of the adjusting wheel 301, thereby reducing adjustment resistance and conveying resistance. Example

[0032] like Figure 4 、 Figure 5 、 Figure 6 As shown, on the basis of Example 1, a material laying and resistance discharging structure for small copper pipe fittings is added.

[0033] The front and rear ends of the box body 10 of this embodiment are respectively provided with a feed notch 103 and a discharge notch 104; the input pulley 21 is arranged on the outside of the feed notch 103, and the output pulley 22 is arranged on the outside of the discharge notch 104; The upper end of the feed notch 103 is provided with an angle-adjustable material laying plate 50; The upper end of the discharge notch 104 is provided with an angle-adjustable material blocking plate 51 , and the inner end of the material blocking plate 51 is formed with an arc material guiding folding plate 511 .

[0034] In this embodiment, the material spreading plate 50 and the material blocking plate 51 are each provided with an angle adjustment device; The angle adjustment device includes a base 52 and a rotating portion 53 in a "b" shape, and the base 52 is detachably fixed to the box body 10 by screws; The inner end of the arc portion of the base 52 is formed with a fan-shaped notch 521, and the upper side wall of the fan-shaped notch 521 is formed with an arc groove 522. The rotating portion 53 includes an arc plate A531, an arc plate B532, and a connecting plate 533 connecting the arc plates A531 and B532. The arc plate A531 is inserted into the arc groove 522, and the arc plate B532 is abutted against the outer wall of the arc portion of the base 52. The arc plate A531 is formed with an arc-shaped rack 534, which is meshed with a gear 54. The gear 54 is fixed with a worm wheel 56 via a synchronization shaft 55. The worm wheel 56 is meshed with a worm 57. The end of the worm 57 is formed with a square head 571, which does not extend outside the base 52. The synchronization shaft 55 and the worm 57 are rotatably connected within the base 52. The material spreading plate 50 and the material blocking plate 51 are each integrally formed on the corresponding rotating portion 53; The lower bottom surfaces of the material spreading plate 50 and the material blocking plate 51 are respectively arranged to be tangent to the arc portion of the corresponding base 52 .

[0035] 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 technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the scope of protection of the present invention.

Claims

1. A continuous small copper pipe annealing device, comprising a housing (10), a wire mesh conveyor belt (20), an input pulley (21), an output pulley (22), a tensioning pulley (40) and a driving pulley (24); characterized in that: The wire mesh conveyor belt (20) is provided with a camber adjustment mechanism (30) below the segment A (201) between the input pulley (21) and the output pulley (22); The arch adjustment mechanism (30) comprises two groups of adjustment wheels (301) arranged in parallel on the left and right sides, the adjustment wheels (301) being abutted against the bottom of segment A (201); the outer wall of the adjustment wheel (301) is arranged to diverge in a spiral line.

2. A continuous small copper pipe annealing device according to claim 1, characterized in that: Each set of adjusting wheels (301) is symmetrically provided with two adjusting wheels (301) in front and back, and the two adjusting wheels (301) are fixed on the adjusting shaft (302); one end of the adjusting shaft (302) is connected to a synchronous gear (303), and the two synchronous gears (303) are engaged with a driving gear A (304), and the driving gear A (304) is fixed on the motor shaft of the servo motor (305).

3. A continuous small copper pipe annealing device according to claim 2, characterized in that: A plurality of large semicircular recesses (3011) are formed on the outer wall of the regulating wheel (301), and two large semicircular recesses (3011) aligned with each other in the same group of two regulating wheels (301) are sleeved with a roller (306), and the outer end of the roller (306) is arranged higher than the outer wall of the regulating wheel (301).

4. The continuous small copper pipe annealing device according to claim 1, characterized in that: Two tensioning wheels (40) are provided at the front and rear ends and are rotatably connected to the same support shaft (41). The support shaft (41) is fixed to one end of a slider (42). The other end of the slider (42) is inserted into a sliding sleeve (43). An electric telescopic cylinder (44) is fixed to the end of the sliding sleeve (43) away from the tensioning wheel (40). The end of the telescopic rod of the electric telescopic cylinder (44) is connected to the slider (42) via a pressure sensor (45).

5. The continuous small copper pipe annealing device according to claim 1, characterized in that: An electric heater (12) is provided on the upper portion of the box (10); A heat circulation fan (13) is provided on the top of the box (10); A baffle (14) is provided below the two sets of regulating wheels (301), and the baffle (14) separates the box body (10) into an upper annealing chamber (101) and a lower power chamber (102).

6. The continuous small copper pipe annealing device according to claim 5, characterized in that: The baffle (14) comprises a pair of oblique guide plates (141) symmetrically arranged on the left and right, a pair of circular arc guide plates (142), a pair of transverse guide plates (143), and a pair of circular arc baffles (144).

7. The continuous small copper pipe annealing device according to claim 1, characterized in that: The front and rear ends of the box body (10) are respectively provided with a feed notch (103) and a discharge notch (104); The upper end of the feed notch (103) is provided with a material laying plate (50) with an adjustable angle; An angle-adjustable material blocking plate (51) is provided at the upper end of the material discharging notch (104), and an arc-shaped material guiding folding plate (511) is formed at the inner end of the material blocking plate (51).

8. The continuous small copper pipe annealing device according to claim 7, characterized in that: The material spreading plate (50) and the material blocking plate (51) are each provided with an angle adjustment device; The angle adjustment device comprises a base (52) in the shape of a letter "B" and a rotating portion (53), wherein the base (52) is detachably fixed to the box body (10) by screws; The inner end of the arc portion of the base (52) is formed with a fan-shaped notch (521), and the upper side wall of the fan-shaped notch (521) is formed with an arc groove (522); the rotating portion (53) includes an arc plate A (531), an arc plate B (532), and a connecting plate (533) connecting the arc plate A (531) and the arc plate B (532); the arc plate A (531) is inserted into the arc groove (522), and the arc plate B (532) is abutted against the outer wall of the arc portion of the base (52); An arc-shaped rack (534) is formed on the arc plate A (531), the arc-shaped rack (534) is meshed with a gear (54), the gear (54) is fixed with a worm wheel (56) via a synchronous shaft (55), the worm wheel (56) is meshed with a worm (57), and a square head (571) is formed at the end of the worm (57), and the square head (571) does not extend outside the base (52); The material spreading plate (50) and the material blocking plate (51) are each integrally formed on the corresponding rotating portion (53); The lower bottom surfaces of the material spreading plate (50) and the material blocking plate (51) are respectively arranged tangent to the arc portion of the corresponding base (52).

9. The continuous small copper pipe annealing device according to claim 1, characterized in that: A limiting groove (3012) is formed on the regulating wheel (301), and a limiting rod (307) is sleeved in the limiting groove (3012).

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