Automatic rolling bar spacing adjusting mechanism applied to spring shot blasting machine

Abstract

A rolling bar spacing automatic adjusting mechanism applied to a spring shot blasting machine belongs to the technical field of auxiliary equipment applied to the spring shot blasting machine, and comprises an electric telescopic rod and control equipment, a barrel body of the electric telescopic rod is mounted at the lower end of a chain tensioner fixing plate of the spring shot blasting machine; the upper end of a push column of the electric telescopic rod and the lower end of an adjusting plate are mounted together; the three sets of control devices are the same, each set of lead screw distance adjusting device comprises a motor speed reducing mechanism, a driving gear, a linear sliding table, a fixing shell, a spur rack, a shaft rod and a rolling bar supporting vehicle, and the three sets of control devices and a rolling bar of the spring shot blasting machine are installed together. Through the operation control of the power switch, the chain of the electric telescopic rod is loosened or tensioned; and a worker controls a power switch, so that the two sets of supporting seats can drive the distance between the two rolling bars to be increased or decreased. According to the utility model, convenience is brought to workers, and the working efficiency is improved. The device has a good application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment of shot blasting machines, in particular to an automatic roller bar spacing adjustment mechanism applied to a spring shot blasting machine. Background Art

[0002] Spring shot blasting machine is a kind of equipment specially used for shot blasting and rust removal of springs. Its main structure includes frame, shot blasting head equipment, electric chain plate type fork equipment, and electric drive roller equipment. Figure 1 As shown, during operation, a worker (or an automatic input from the previous process) places the springs 2 to be processed one by one through the feed port 1 on the upper ends of the two rollers 7 of the electric-driven roller device. Then, the multiple rotating forks (located between the inner ends of the two rollers 7) driven by the chain of the electric chain plate fork device 6 continuously output the springs 2 between the upper ends of the two rollers to the lower end of the shot blasting head device 3. The shot blasting head device 3 performs sandblasting and rust removal on the springs. The springs are then output to the next process through the discharge port 5 (or the worker removes the processed springs). During actual operation, the two rollers 7 of the electric-driven roller device drive the springs 2 to rotate clockwise or counterclockwise. In this way, the springs 2 pass through the lower end of the shot blasting head device 3 during rotation, and all surfaces of the springs 2 are sandblasted (4 is the frame).

[0003] Although the spring shot blasting machine has met the work needs to a certain extent, it is limited by its structure and still has some technical shortcomings. Specifically, in order to achieve the shot blasting strengthening work of springs with different outer diameters, the distance between the two rollers needs to be adjusted (for example, springs with large outer diameters require a relatively large distance between the two rollers, and springs with small outer diameters require a relatively small distance between the two rollers). The existing technology is to manually loosen the fixing bolts of one or both rollers by means of a wrench, and then adjust the distance between the two before fixing them. Due to the heavy weight of the rollers and the large number of fixed positions, it is extremely inconvenient for the staff to adjust the work, which is correspondingly not conducive to improving work efficiency. Second: To adjust the two rollers forward and backward, in order to achieve the appropriate chain tension of the chain tensioner of the electric drive roller device (the driving mechanism of the electric drive roller device drives the sprocket connected to the front end line of the two rollers to rotate through the chain, and then the two rollers rotate), the staff needs to first manually loosen the adjustment plate of the chain tensioner with a wrench or the like (there is a rotating tensioning sprocket at the front end), and then manually adjust it up or down, and fix the height of the upper or lower adjustment plate, so that the effect of adjusting the chain tension can be achieved; the above also requires manual adjustment by the staff, which will bring great inconvenience to the staff's adjustment work and is not conducive to improving work efficiency. In summary, it is particularly necessary to provide a mechanism that can easily adjust the distance between the two rollers and the chain tension. Utility Model Content

[0004] In order to overcome the disadvantages of the existing spring shot blasting machine that the tension of the chain and the distance between the two rollers need to be adjusted manually, which brings inconvenience to the staff and is not conducive to improving work efficiency, the utility model provides an automatic roller spacing adjustment mechanism for a spring shot blasting machine, which allows the staff to control the distance between the two rollers and the tension of the chain in a convenient and non-human manner through a simple power switch operation under the working action of the relevant mechanism, thereby bringing convenience to the staff and correspondingly improving work efficiency.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The cam is fixedly mounted on the upper end of the adjusting plate of the chain tensioner of the spring shot blasting machine, and the cam is fixedly mounted on both sides of the adjusting plate, and the upper end of the push column of the electric telescopic rod and the lower end of the adjusting plate are fixedly mounted together; the control device has multiple identical sets, and each set of the control device includes a motor reduction mechanism, a driving gear, a linear slide, a fixed shell, a spur rack, an axle rod, and a roller support trolley. There is an axial hole at the lower part of the fixed shell, and the motor reduction mechanism is fixedly mounted on the outer lower end of the fixed shell. The two sets of linear slides are distributed front and back and are fixedly mounted on the upper part of the front and rear ends of the fixed shell respectively. The outer ends of the two sets of spur racks are fixedly mounted on the inner ends of the sliding blocks of the two sets of linear slides respectively, and the driving gear is fixedly mounted on the upper end of the rotating shaft of the motor reduction mechanism; the two sets of spur racks The upper end of one side is fixedly installed with a fixed seat, one side of the two sets of shafts are respectively fixedly installed on the upper end of the rear fixed seat and the lower end of the front fixed seat, a cover plate is installed on the fixed shell, and an axis hole is provided on one side of the fixed shell; the roller support vehicle includes a fixed platform, a support seat, and a linear slide A, wherein two sets of linear slides A and the other two sets of linear slides A are fixedly installed on the front and rear ends of the inner side of the fixed platform at a distance, and the lower sides of the front and rear ends of the two sets of support seats are respectively fixedly installed between the inner sides of the sliding blocks of the two sets of linear slides A and the other two sets of linear slides A, and the other sides of the two shafts are respectively fixedly installed on the lower ends of the two sets of support seats; the fixed shells of the multiple sets of control equipment and the lower ends of the fixed platforms are respectively fixedly installed on the fixed frame at the lower end of the spring shot blasting machine, and the front, middle and rear ends of the two rollers of the spring shot blasting machine are respectively provided with grooves, and the outer ends of each groove are respectively provided with bearings.

[0007] Furthermore, the teeth of the driving gear and the two sets of spur racks are in a meshing structure.

[0008] Furthermore, the two side ends of the two sets of shafts are spaced apart from each other and are located in a vertical plane.

[0009] Furthermore, the lower sides of the two sets of support seats are inconsistent in height.

[0010] Furthermore, the lower ends of the two sets of fixing seats have different heights.

[0011] Furthermore, the outer side of the bearing is consistent with the outer diameter of the roller, and the inner sides of the upper ends of the two sets of support seats of multiple sets of control equipment are fixedly installed together with the outer sides of the outer rings of the front ends, middle ends and rear end bearings of the two rollers.

[0012] Furthermore, the electric telescopic rod can also be a pneumatic cylinder or a hydraulic cylinder.

[0013] Compared with the existing technology, the present invention has the following advantages: the operator controls the working mode of the electric telescopic rod by operating the power switch. The upper end of the push column of the electric telescopic rod drives the adjustment plate to move up or down, thereby causing the sprocket at the front end of the adjustment plate to move upward, loosening the chain, or causing the sprocket at the front end of the adjustment plate to move downward, tightening the chain. Moreover, by controlling the power switch, the operator can also cause the motor reduction mechanism of the three sets of control equipment to drive the two racks to move in opposite directions via the active gear. In this way, the two sets of support seats will drive the distance between the two rollers to expand or contract. This new invention brings convenience to the operator and correspondingly improves work efficiency. In summary, this new invention has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the overall planar structure of an existing spring shot blasting machine.

[0016] Figure 2 It is a right-side stereoscopic structural diagram of the utility model and a part of a spring shot blasting machine.

[0017] Figure 3 It is a partial left rear perspective structural diagram of the utility model.

[0018] Figure 4 It is a partial right rear view stereoscopic structure diagram of the utility model.

[0019] Figure 5 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0020] Figure 1 、 2As shown in , 3, 4, and 5, an automatic roller bar spacing adjustment mechanism for a spring shot blasting machine includes an electric telescopic rod M (a finished reciprocating electric telescopic rod with a power of 50W) and a control device 8; the cylinder of the electric telescopic rod M is vertically distributed and fixedly installed on the lower end fixing plate 912 of the chain tensioner 91 adjusting plate 911 of the spring shot blasting machine 9 by bolts, and a "┌" and "˥" type limiting guide block 913 is fixedly installed on the left and right sides of the adjusting plate 911 (the bolts fixing the adjusting plate are removed and not used) by bolts, respectively. The upper end of the piston rod of the electric telescopic rod M and the middle part of the lower end of the adjusting plate 911 are welded together (The left and right ends of the adjustment plate 911 can move up or down along the two guide blocks 913); the control device 8 has three identical sets, each set of the control device 8 includes a motor reduction mechanism 81 (M1, power 2KW coaxial motor gear reducer finished product), a driving gear 82, a linear slide 83, a fixed shell 84, a straight rack 85, a shaft 86, and a roller support car 87. There is an axial hole in the lower middle part of the fixed shell 84. The motor reduction mechanism 81 is vertically distributed and fixedly installed at the lower end of the fixed shell 84 by bolts, and the rotating shaft is led upward through the upper end of the axial hole. The two sets of linear slides 83 are distributed front and back and are respectively installed in the fixed shell 84 by bolts. At the upper part of the front and rear ends, the outer ends of the two sets of spur racks 85 are respectively welded to the inner ends of the sliding blocks of the two sets of linear slides 83, and the teeth of the two sets of spur racks 85 are in an inner face-to-face structure, and the driving gear 82 is welded to the outer side of the upper end of the rotating shaft of the motor reduction mechanism 81; the upper ends of the right sides of the two sets of spur racks 85 are respectively fixed with a fixing seat 851 by bolts, and the left sides of the two sets of shaft rods 86 are respectively welded to the upper end of the rear end fixing seat 851 and the lower end of the front end fixing seat 851, and a sealing cover plate 88 is installed on the upper end of the fixed shell by bolts. There is an axis hole at the upper and lower ends of the right middle part of the fixed shell 84, and the two shaft rods 86 are respectively fixed with an axis hole. The parts slide in the two shaft holes respectively; the roller support vehicle includes a fixed platform 871 with an open mechanism at the upper end, a support seat 872, and a linear slide A873, wherein two sets of linear slides A873 and another two sets of linear slides A873 are distributed front and back at a certain distance from each other on the left and right sides and are respectively installed on the front and rear ends of the inner side of the fixed platform 871 by bolts, and the lower sides of the front and rear ends of the two sets of support seats 872 are respectively fixed by bolts between the inner sides of the sliding blocks of the two sets of linear slides A873 and the other two sets of linear slides A873, and the right sides of the two shafts 86 are respectively welded to the middle part of the lower end of the left support seat 872 and the right support seat 872;The lower ends of the fixed housing 84 and the fixed platform 871 of the three sets of control equipment are fixedly installed on the fixed body 4 at the lower end of the spring shot blasting machine 9 by bolts at a certain distance. The power input end of the electric telescopic rod M is connected in series with the DC 24V power supply through a power switch S via a wire (the power input ends 1 and 2 of the power switch S are connected to the two poles of the DC 24V power supply via wires, and the power output ends 3 and 4, 5 and 6 of the power switch S are connected to the positive and negative and negative and positive power input ends of the electric telescopic rod M via wires). The power input of the motor reduction mechanism M1 is connected in series with another power switch AS1 and connected to the two poles of the 24V power supply via wires. (Power input pins 1 and 2 of power switch AS1 are connected to the two poles of the DC 24V power supply via wires, while power output pins 3 and 4, and pins 5 and 6 of power switch AS1 are connected to the positive and negative, and negative and positive, power inputs of the motor reduction mechanism M1 via wires.) The two rollers 7 of the spring shot blasting machine each have an annular groove at the front, middle, and rear ends. A bearing 92 is tightly fitted into the outer end of each groove. The power switch, power switch A, and 24V battery are installed in the electrical control box.

[0021] Figure 1 、 2 As shown in Figures 3, 4, and 5, the teeth of the driving gear 82 and the two sets of spur racks 85 are in a meshing structure. The left and right ends of the two sets of shafts 86 are spaced apart from each other and are in a vertical plane. The lower side height of the right end support seat 872 is higher than the lower side height of the left end support seat 872. The lower end height of the front end fixing seat 851 is higher than the lower end height of the rear end fixing seat 851. The outer side of the bearing 92 is consistent with the outer diameter of the roller 7. The inner sides of the upper ends of the three sets of support seats 872 of the three sets of control equipment are respectively fixed to the outer sides of the outer rings of the front ends, middle ends, and rear ends of the two rollers 7 (with connecting plates welded thereto) by bolts. The electric telescopic rod can also use one of a pneumatic cylinder and a hydraulic cylinder.

[0022] Figure 1 、 2As shown in Figures 3, 4, and 5, when the staff needs to adjust the chain 914 of the chain tensioner 91 of the spring shot blasting machine 9 to tighten or loosen (the chain needs to be loosened before adjusting the two rollers, and the chain needs to be tightened after adjusting the two rollers), after turning the power switch S to the left (the power switch 1, 2 feet and 3, 4 feet are connected respectively), the positive and negative power input terminals of the electric telescopic rod M are energized, and the push column of the electric telescopic rod M drives the adjustment plate 911 downward along the guide block 913, and the chain is tightened. After the chain is tightened, turn off the power switch; after turning the power switch S to the right (the power switch 1, 2 feet and 5, 6 feet are connected respectively), the negative and positive power input terminals of the electric telescopic rod M are energized, and the push column of the electric telescopic rod M drives the adjustment plate upward and the chain is loosened. After the chain is loosened, turn off the power switch. Before adjusting the distance between the two rollers 7, the staff turns the handle of the power switch AS1 to the left or right, and the pins 1, 2 and pins 3, 4 or pins 5, 6 of the power switch AS1 are connected respectively. In this way, the positive and negative or negative and positive power input terminals of the motor reduction mechanism M1 of the three control devices are energized. After the positive and negative or negative and positive power input terminals of the motor reduction mechanism M1 of the three control devices are energized, the rotating shaft drives the driving gear 82 to rotate clockwise or counterclockwise. Furthermore, the rotating shaft of the motor reduction mechanism 81 of the three control devices drives the driving gear 82 to rotate clockwise or counterclockwise. When the driving gear 82 rotates counterclockwise, it drives the rear end spur rack 85 to move to the left and the front end spur rack 25 to move to the right. In this way, the two shafts 86 respectively drive the left end roller 7 to move to the left and the right end roller 7 to move to the right. The inner spacing between the two rollers 7 is expanded, and the two rollers can transport the spring 2 with a relatively large outer diameter; when the driving gear 82 rotates clockwise, it drives the rear end spur rack 85 to move to the right and the front end spur rack 85 to move to the left. In this way, the two shafts 86 respectively drive the left end roller 7 to move to the right and the right end roller 7 to move to the left. The inner spacing between the two rollers 7 is reduced, and the two rollers can transport the spring with a relatively small outer diameter.

[0023] Figure 1 、 2 As shown in Figures 3, 4, and 5, the present invention allows a worker to control the operation of the electric telescopic rod by operating the power switch. The upper end of the push column of the electric telescopic rod drives the adjustment plate up or down, thereby causing the sprocket at the front end of the adjustment plate to move upward, loosening the chain, or downward, tightening the chain. Furthermore, by controlling power switch A, the worker can also cause the motor reduction mechanism of the three control devices to drive the two racks via the active gear, thereby causing the two support seats to increase or decrease the distance between the two rollers. This new design brings convenience to workers and correspondingly improves work efficiency.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

[0025] In addition, it should be understood that although this specification is described in terms of implementation methods, the implementation methods do not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic roller bar spacing adjustment mechanism for a spring shot blasting machine, comprising an electric telescopic rod, characterized in that: The cam is fixedly mounted on the lower end of the adjusting plate of the chain tensioner of the spring shot blasting machine, and limited guide blocks are fixedly mounted on both sides of the adjusting plate. The upper end of the push column of the electric telescopic rod and the lower end of the adjusting plate are fixedly mounted together. The control device has multiple identical sets, and each set of control device includes a motor reduction mechanism, a driving gear, a linear slide, a fixed shell, a spur rack, an axle rod, and a roller support vehicle. There is an axial hole at the lower part of the fixed shell, and the motor reduction mechanism is fixedly mounted on the outer lower end of the fixed shell. The two sets of linear slides are distributed front and back and are fixedly mounted on the upper front and rear ends of the fixed shell respectively. The outer ends of the two sets of spur racks are fixedly mounted on the inner ends of the sliding blocks of the two sets of linear slides respectively, and the driving gear is fixedly mounted on the upper end of the rotating shaft of the motor reduction mechanism; the upper ends of one side of the two sets of spur racks are fixedly mounted with fixed seats respectively. One side of the two sets of shafts are respectively fixedly installed on the upper end of the rear fixed seat and the lower end of the front fixed seat, a cover plate is installed on the fixed shell, and an axis hole is provided on one side of the fixed shell; the roller support vehicle includes a fixed platform, a support seat, and a linear slide A, wherein two sets of linear slides A and the other two sets of linear slides A are fixedly installed on the front and rear ends of the inner side of the fixed platform at a distance, and the lower sides of the front and rear ends of the two sets of support seats are respectively fixedly installed between the inner sides of the sliding blocks of the two sets of linear slides A and the other two sets of linear slides A, and the other sides of the two shafts are respectively fixedly installed on the lower ends of the two sets of support seats; the fixed shells of the multiple sets of control equipment and the lower ends of the fixed platforms are respectively fixedly installed on the fixed frame at the lower end of the spring shot blasting machine, and the front, middle and rear ends of the two rollers of the spring shot blasting machine are respectively provided with grooves, and the outer ends of each groove are respectively provided with bearings.

2. The automatic roller spacing adjustment mechanism for a spring shot blasting machine according to claim 1 is characterized in that: The teeth of the driving gear and the two sets of spur racks are in a meshing structure.

3. The automatic roller spacing adjustment mechanism for a spring shot blasting machine according to claim 1 is characterized in that: The two side ends of the two sets of shaft rods are spaced apart from each other and are located in a vertical plane.

4. The automatic roller spacing adjustment mechanism for a spring shot blasting machine according to claim 1 is characterized in that: The heights of the undersides of the two sets of support seats are inconsistent.

5. The automatic roller bar spacing adjustment mechanism for a spring shot blasting machine according to claim 1 is characterized in that: The lower end heights of the two sets of fixing seats are inconsistent.

6. The automatic roller spacing adjustment mechanism for a spring shot blasting machine according to claim 1 is characterized in that: The outer side of the bearing is consistent with the outer diameter of the roller bar. The inner sides of the upper ends of the two sets of support seats of multiple sets of control equipment are fixedly installed together with the outer sides of the outer rings of the front ends, middle ends and rear ends of the two roller bars.

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