Transmission mechanism of shot blasting machine

Abstract

The utility model relates to a transmission mechanism of a shot blasting machine, and belongs to the technical field of workpiece transmission. A conveying mechanism of a shot blasting machine comprises a climbing conveyor used for conveying workpieces to the shot blasting machine, and the climbing conveyor is provided with a first conveying belt comprising a horizontal section and a climbing section; the climbing conveyor is movable, and pulleys or rails are arranged at the bottom of the rack; the conveying mechanism further comprises a horizontal conveyor which is used for conveying the workpieces to the climbing conveyor and provided with a second conveying belt. According to the utility model, the climbing belt conveyor is adopted to feed materials to the shot blasting machine, so that the shot blasting machine has the advantages of energy conservation and consumption reduction.

Description

Technical Field

[0001] The utility model relates to a transmission mechanism, in particular to a transmission mechanism of a shot blasting machine, and belongs to the technical field of workpiece transmission. Background Art

[0002] Shot blasting machine is a mechanical device that uses high-speed projectiles to clean or strengthen the surface of workpieces. It can simultaneously remove sand, core and clean castings. It can also be used for surface treatment of forgings, aluminum-magnesium alloy parts, sheet metal welded parts, etc. In some areas, it is also called sandblasting machine in colloquial expressions. According to modern metal strength theory, increasing the dislocation density inside the metal is the main direction to improve the strength of the metal. Practice has proved that shot blasting is an effective process for increasing the dislocation structure of the metal. Therefore, shot blasting can not only remove the oxide scale on the surface of the casting, but also improve the strength of the casting.

[0003] In the prior art, a feeding device is usually used for feeding the shot blasting machine. Due to the wide applicability of the shot blasting machine, the sizes of workpieces in different fields are very different. Therefore, the shape and structure of the feeding device are usually varied. For example, the utility model patent with the authorization announcement number CN201822106871.8 discloses a feeding device for a shot blasting machine, which includes a shot blasting machine, a support leg and a feeding hopper. The shot blasting machine is installed on the ground, and a mounting groove is dug on the left side of the ground. Four groups of support legs are fixed at the bottom of the mounting groove, and support plates are installed on the top of the four groups of support legs. Fixed rods and hydraulic rods are respectively arranged on the support plates from right to left, and two groups of fixed rods and hydraulic rods are arranged. Four groups of mounting plates are arranged at the bottom of the feeding hopper, and the mounting plates are respectively pin-mounted on the hydraulic rod and the fixed rod at one end away from the mounting plate. When the device is used, first turn on the rotating motor, the motor rotates to drive the gear plate to rotate, the gear plate cooperates with the rotating outer wall to rotate the rotating disk, when the rotating disk rotates, the mounting hole on the rotating disk cooperates with the rotating rod to drive the rotating rod to rise, the lifting of the rotating rod drives the support plate to rise, when it reaches the specified height, turn off the rotating motor, turn on the hydraulic rod, the hydraulic rod extends to drive the upper hopper to rise, when the upper hopper rises, the slider on the mounting plate slides in the slideway, when the upper hopper flips and tilts to a certain angle, turn off the hydraulic rod, and drive the material from the feed port into the shot blasting machine under the action of gravity, completing the shot blasting machine loading. The device mainly feeds by lifting and rotating the hopper. Even without load, the lifting and rotating of the hopper itself consumes a lot of energy; in addition, the structure of the device is relatively complex, and there are certain safety hazards in lifting and turning the hopper. Utility Model Content

[0004] The utility model aims to solve the above problems, thereby providing a transmission mechanism of a shot blasting machine. The transmission mechanism of the utility model is used for feeding the shot blasting machine, and has the characteristics of energy saving and safety.

[0005] The technical solution of the utility model to solve the above problems is as follows:

[0006] A transmission mechanism of a shot blasting machine, comprising a climbing conveyor for transmitting workpieces to the shot blasting machine, wherein the climbing conveyor is provided with a first conveyor belt including a horizontal section and a climbing section; the climbing conveyor is mobile, and a pulley or a track is provided at the bottom of the frame; the transmission mechanism also comprises a horizontal conveyor provided with a second conveyor belt for transmitting the workpieces to the climbing conveyor.

[0007] In the above technical solution of the utility model, an inclined crawler conveyor, also known as a climbing belt conveyor in colloquial expression, is used to feed the shot blasting machine. Since this type of structure of the conveyor does not need to lift or flip the heavy hopper, it has the advantage of energy saving and consumption reduction. At the same time, since the unloading method of this type of conveyor is usually vertical drop, the discharge end of the conveyor must enter the top of the chamber of the shot blasting machine, and in this state, it will interfere with the closing of the hatch of the shot blasting machine. Therefore, the utility model sets the climbing conveyor to be mobile, and after the unloading is completed, the hatch of the shot blasting machine is avoided by controlling the movement.

[0008] In order to ensure the continuous supply of workpieces, the utility model also provides a horizontal conveyor for conveying the workpieces to the climbing conveyor. During normal operation, the first conveyor belt of the climbing conveyor keeps rotating, so that the workpieces can move forward in time after entering the horizontal section of the first conveyor belt to avoid the problem of workpiece accumulation.

[0009] The horizontal conveyor is actually used to connect the automatic unloading machine and the climbing conveyor. If the climbing conveyor and the automatic unloading machine are directly connected, although the unloading machine can be debugged to unload after the climbing machine is reset in the initial stage, the problem of workpieces falling to the ground is easy to occur after running for a period of time. Therefore, it is usually difficult to adjust the frequency of the climbing conveyor to move back and forth and the frequency of the automatic unloading machine to be completely consistent. The addition of the horizontal conveyor solves this problem well. The horizontal conveyor and the automatic unloading machine can be relatively fixed to ensure that the unloading machine always unloads on the conveyor belt of the horizontal conveyor; and the conveyor belt of the horizontal conveyor is driven by a motor. For the control of the motor, this field has been able to start and stop at any time, and at the same time accurately control the speed. In addition, the addition of the horizontal conveyor also facilitates the layout of the factory. Not only can the conveying distance of the horizontal conveyor be determined according to needs, but the conveying direction can also be determined according to needs.

[0010] As a preferred embodiment of the above technical solution, the moving direction of the climbing conveyor and the workpiece conveying direction thereof are in the same straight line.

[0011] As a preferred embodiment of the above technical solution, both the climbing conveyor and the horizontal conveyor are controlled by frequency converters.

[0012] As a preferred embodiment of the above technical solution, the horizontal conveyor is arranged vertically relative to the climbing conveyor.

[0013] As a preferred embodiment of the above technical solution, a transfer device is arranged between the horizontal conveyor and the climbing conveyor; the transfer device includes an inclined third conveyor belt and a transition roller; the third conveyor belt is indirectly connected to the second conveyor belt through the transition roller, and the transition roller is simultaneously in contact with the higher ends of the second conveyor belt and the third conveyor belt.

[0014] As a preferred embodiment of the above technical solution, the transition roller is arranged below the second conveyor belt and the third conveyor belt.

[0015] In the above technical solution of the utility model, the third conveyor belt is driven to rotate by the second conveyor belt through the transition roller, which not only saves the supporting driving equipment but also ensures synchronous rotation with the second conveyor belt.

[0016] As a preferred embodiment of the above technical solution, the transition roller is a rubber roller.

[0017] As a preferred embodiment of the above technical solution, the lower end of the third conveyor belt is arranged above the horizontal section with a gap between the third conveyor belt and the horizontal section.

[0018] In the prior art, there are usually two types of conveyor belt docking: 90° and 180°. Both of them are horizontal docking. Among them, 180° docking usually does not cause the problem of workpiece transfer; while 90° docking often causes the problem of the workpiece not being centered after entering the downstream conveyor belt, because at the 90° angle connection of the conveyor belt, the workpiece may be subjected to both lateral and longitudinal friction forces. Under the action of the two forces, the position of the workpiece on the downstream conveyor belt will gradually shift until it is stationary and stable. After stabilization, the landing point of the workpiece on the downstream conveyor belt is offset. This can easily cause the downstream conveyor belt to deviate, the workpiece in transit to rub against the baffles on both sides, or even fall after climbing over the baffles. The setting of the transfer device in the above technical solution of the utility model can solve this problem. In the above technical solution, the setting height of the third conveyor belt is higher than that of the first conveyor belt, and the output end of the third conveyor belt extends above the first conveyor belt; at the same time, the coverage degree of the output end of the third conveyor belt extending above the first conveyor belt does not exceed half of the width of the first conveyor belt, usually 1 / 3~3 / 7; and the third conveyor belt itself is inclined. In this case, when the workpiece enters the downstream conveyor belt, its landing point has traveled a large distance in the horizontal direction, that is, it is already close to the middle; at the same time, because the third conveyor belt is set at an angle, when the workpiece leaves the third conveyor belt, not only the inertia effect of the workpiece itself, but also the dead weight of the workpiece has an effect on the workpiece leaving the upstream conveyor belt, and there is a gap between the third conveyor belt and the first conveyor belt, so the workpiece is rarely affected by the combined force. Therefore, the workpiece can be quickly stabilized on the one hand, and can be quickly stabilized in the center position on the other hand.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. The utility model adopts a climbing belt conveyor to feed the shot blasting machine, which has the advantages of energy saving and consumption reduction;

[0021] 2. The utility model also provides a horizontal conveyor for transferring the workpieces to the climbing conveyor. The horizontal conveyor is easy to control and can avoid the problem of workpiece accumulation;

[0022] 3. The utility model also provides a transfer device with a third conveyor belt between the first conveyor belt and the second conveyor belt, so that the workpiece can be quickly and stably placed in the center when transferred from the upstream conveyor belt to the downstream conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the utility model;

[0024] Figure 2 It is a top view of the first state of the utility model;

[0025] Figure 3It is a top view of the second state of the utility model;

[0026] Figure 4 It is a schematic diagram of the installation of the second conveyor belt and the third conveyor belt of the utility model;

[0027] In the figure, 1- shot blasting machine, 2- climbing conveyor, 3- horizontal conveyor, 4- transfer device, 5- automatic unloading machine;

[0028] 21-first conveyor belt, 21-1-horizontal section, 21-2-climbing section, 31-second conveyor belt, 41-third conveyor belt, 42-transition roller. DETAILED DESCRIPTION

[0029] The present invention is further explained below in conjunction with the accompanying drawings.

[0030] This specific implementation mode is only an explanation of the utility model, not a limitation of the utility model. Any changes made by those skilled in the art after reading the specification of the utility model will be protected by the patent law as long as they are within the scope of the claims.

[0031] like Figure 1 As shown, a transmission mechanism of a shot blasting machine includes

[0032] - Automatic feeding machine 5, used for providing workpieces;

[0033] - A horizontal conveyor 3, part of which is arranged directly below the automatic unloader 5, for receiving workpieces and conveying them horizontally;

[0034] - A transfer device 4, installed at the end of the horizontal conveyor 3, receives the workpiece from the horizontal conveyor 3 and transfers it to the climbing conveyor 2;

[0035] - A climbing conveyor 2 for conveying the workpieces to the shot blasting machine 1.

[0036] The climbing conveyor 2 is equipped with a first conveyor belt 21, and the first conveyor belt 21 includes a horizontal section 21-1 and a climbing section 21-2. The climbing conveyor 2 is mobile, and a track is installed at the bottom of the frame. The climbing conveyor 2 is set to be mobile, and after the unloading is completed, the hatch of the shot blasting machine can be avoided by controlling the movement. Figure 1 It can be seen that the back and forth moving distance of the climbing conveyor 2 is set to L.

[0037] The horizontal conveyor 3 is equipped with a second conveyor belt 31 .

[0038] The transfer device 4 is provided with a third conveyor belt 41 .

[0039] In this embodiment, the first conveyor belt 21 and the second conveyor belt 31 are both actively operated and are each equipped with a motor. The third conveyor belt 41 is passive and is operated by means of the second conveyor belt 31. Specifically, the switching device 4 includes the third conveyor belt 41 and a transition roller 42 which are arranged obliquely.

[0040] In order to facilitate the transfer of workpieces and avoid interference, the lower end of the third conveyor belt 41 is arranged above the horizontal section 21 - 1 and a gap is left between the third conveyor belt 41 and the horizontal section 21 - 1 .

[0041] In order to further improve the operation effect of the switching device, the transition roller 42 is set as a rubber roller.

[0042] like Figure 2~3 As shown, the second conveyor belt 31 is arranged perpendicularly to the first conveyor belt 21. The switching device 4 is arranged at the end of the horizontal conveyor 3. Therefore, the second conveyor belt 31 is connected to the horizontal section 21-1 of the first conveyor belt 21 through the third conveyor belt 41.

[0043] Figure 2~3 All are schematic diagrams. Figure 2 The climbing conveyor 2 is feeding the shot blasting machine; Figure 3 The climbing conveyor 2 returns after delivering the materials to avoid closing the hatch of the shot blasting machine.

[0044] Figure 4 Schematic diagram showing how the third conveyor belt 41 is rotated with the help of the second conveyor belt 31. It can be seen that the third conveyor belt 41 is indirectly connected to the second conveyor belt 31 through the transition roller 42, and the transition roller 42 is simultaneously connected to the higher ends of the second conveyor belt 31 and the third conveyor belt 41, and the transition roller 42 is simultaneously arranged below the second conveyor belt 31 and the third conveyor belt 41. The diameter of the transition roller 42 is larger than the diameter of the roller driving the second conveyor belt 31 and the third conveyor belt 41.

Claims

1. A transmission mechanism for a shot blasting machine, comprising a climbing conveyor (2) for transmitting a workpiece to the shot blasting machine (1), characterized in that: The climbing conveyor (2) is provided with a first conveyor belt (21) including a horizontal section (21-1) and a climbing section (21-2); the climbing conveyor (2) is mobile, and a pulley is provided at the bottom of the frame or a track is installed; the transmission mechanism also includes a horizontal conveyor (3) provided with a second conveyor belt (31) for transmitting the workpiece to the climbing conveyor (2).

2. The transmission mechanism of a shot blasting machine according to claim 1, characterized in that: The moving direction of the climbing conveyor (2) and the workpiece conveying direction thereof are on the same straight line.

3. The transmission mechanism of a shot blasting machine according to claim 1, characterized in that: The climbing conveyor (2) and the horizontal conveyor (3) are both controlled by frequency converters.

4. The transmission mechanism of a shot blasting machine according to claim 1, characterized in that: The horizontal conveyor (3) is arranged vertically relative to the climbing conveyor (2).

5. The transmission mechanism of a shot blasting machine according to claim 1, characterized in that: A transfer device (4) is provided between the horizontal conveyor (3) and the climbing conveyor (2); the transfer device (4) comprises a third conveyor belt (41) and a transition roller (42) which are arranged obliquely; the third conveyor belt (41) is indirectly connected to the second conveyor belt (31) via the transition roller (42), and the transition roller (42) is simultaneously connected to the higher ends of the second conveyor belt (31) and the third conveyor belt (41).

6. The transmission mechanism of a shot blasting machine according to claim 5, characterized in that: The transition roller (42) is arranged below the second conveyor belt (31) and the third conveyor belt (41).

7. The transmission mechanism of a shot blasting machine according to claim 5, characterized in that: The transition roller (42) is a rubber roller.

8. The transmission mechanism of a shot blasting machine according to claim 5, characterized in that: The lower end of the third conveyor belt (41) is arranged above the horizontal section (21-1) and a gap is left between the third conveyor belt (41) and the horizontal section (21-1).

9. The transmission mechanism of a shot blasting machine according to claim 5, characterized in that: The diameter of the transition roller (42) is greater than the diameter of the roller driving the second conveyor belt (31) or the third conveyor belt (41).

10. The transmission mechanism of a shot blasting machine according to claim 1, characterized in that: The transmission mechanism further comprises an automatic material unloader (5), wherein the automatic material unloader (5) is arranged above the horizontal conveyor (3); the horizontal conveyor (3) is used to receive workpieces from the automatic material unloader (5) and transfer them to the climbing conveyor (2).

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