JPS6137173B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to loading and unloading, cleaning, conveying, etc. of materials to be polished in a hanger type shot blasting machine. Loading and unloading workpieces that have areas where shot particles are particularly likely to accumulate or areas that become blind spots are given a specific angle of inclination to maintain the shot effect.
The present invention relates to a method and apparatus for completely automatically carrying out conveyance and cleaning.

Conventionally, in materials to be polished that have areas where shot particles tend to accumulate, such as deep holes such as the cylinder hole of an engine block, shot particles accumulate during shot blasting and the subsequent injection has no effect. There were many cases where it disappeared.
Therefore, in such cases, it is necessary to tilt the material to be inspected at a specific angle and replace it so that the shot particles accumulated by hand can slide off. Further, in the case of a material to be polished that has a portion that becomes a blind spot of the shot, it is necessary to change the hoist to a specific angle of inclination to avoid the blind spot as described above.

The present invention was made with the aim of solving the above-mentioned drawbacks of the prior art.The present invention has been made with the aim of solving the above-mentioned drawbacks of the prior art. In addition, if the material to be polished has a part that is in the shadow of a member and becomes a blind spot for the shot, the material to be polished is given an appropriate slope to eliminate the blind spot, so that loading, unloading, transportation, and polishing can be done completely. We have succeeded in providing an automatic method and apparatus.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A method and apparatus will be described below based on drawings showing one embodiment of the present invention. As shown in Figure 1, the hanger-type shot blasting device consists of a cleaning chamber P that blasts shot particles while shielding the material to be polished, an unloading station Q for the material to be polished, and a loading and unloading station Q. It is composed of an endless conveyor line S that circulates around the loading station R, etc., and a transport conveyor T for supplying and taking out the material to be polished.

A large number of main hangers H suspended from the endless conveyor line S are provided with hooks Ha from their lower ends for suspending sub-hangers 1 (see FIG. 2). The sub-hanger 1 is a frame made of a pipe or a round bar, and as shown in FIGS. 10 and 11,
A narrow portion 1a serving as a second engaging portion that engages with and supports the material W to be polished, a wide portion 1b that allows the material W to be polished to enter and exit, and both portions 1a, 1b.
It consists of an intermediate part 1d that communicates with It has a structure that allows it to be hung at an angle.

In addition, at the positions of the loading station R and the unloading station Q, there are lifts 2 (loading lifts), respectively, as shown in FIGS. 2 to 9.
and a lift 2' (lift for unloading), each of which has a surface 2a for receiving the sub-hanger 1 as a first mounting section at the top and a surface 2a for receiving the material to be polished W as a second mounting section below. Receiving surface 2b on which to place
is provided.

Furthermore, the lift 2 (the same applies to the lift 2', so the explanation of the lift 2' will be omitted) is provided with a pin 2c having an axis substantially parallel to the straight portion of the endless conveyor line S, and a pin 2c is provided on the cargo receiving surface. When the lift 2b rotates around the pin 2c, the stopper 2d that comes into contact with it in the horizontal position moves to the right end of the lift 2 (the fourth
A stopper 2e (adjustable vertical position) is provided at the upper part of a cylinder 2f (FIG. 3), which will be described later, to stop the inclination at a specific angle.

Further, an air cylinder 2f that controls the lifting and lowering of the lift 2 is fixed to the frame 3. After raising the lift 2, when the load receiving surface 2b is placed in a horizontal position, the height of the load receiving surface 2b becomes equal to the height of the lower surface of the material to be polished W transported by the transport conveyor T. The height will be the limit of the rise.

An air cylinder 4 (hereinafter referred to as an inclined cylinder) which controls the rotation of the lift 2 around the pin 2c is also fixed to the frame 3 near the air cylinder 2f, and its top 4a pushes up the lower surface 2g of the lift 2. A contact body 3a (FIG. 4) is provided on the frame 3, which abuts against the stopper 2d to position it when the load receiving surface 2b is changed to a horizontal position.

As shown in FIG. 4, a loading pusher 5 (air cylinder) for loading the material W to be polished onto the lift 2 is mounted on a frame 3 facing the lift 2 with the conveyor T in between. It is fixed, and the material to be polished W is pushed onto the receiving surface 2b of the lift 2 with its tip member 5a and loaded thereon.

Similarly, the pusher 6 (air cylinder) for unloading is fixed on the frame 3 on the left side (Fig. 4) of the lift 2' (for unloading), and its tip member 6a is used to push the load from above the load receiving surface 2b of the lift 2'. The cleaning material W is pushed out and unloaded.

The structures of the lift 2 (for loading) and the lift 2' (for unloading) are exactly the same, and the only difference is the arrangement position and purpose of use.

Next, the functions and effects of the present invention will be explained.
First, the empty sub-hanger 1 suspended from the main hanger H of the circulating endless conveyor line S faces the straight section of the conveyor line S at the loading station R.
It stops at the position (Figure 2).

Next, the lift 2 (for loading) is raised by the lifting cylinder 2f (FIG. 3). Near the lift limit, the lift 2 pushes up the sub-hanger 1 and connects the hanging part 1c to the hook Ha of the main hanger H.
Make it float more and release the engagement.

Thereafter, the tilting cylinder 4 of the lift 2 operates to raise its top 4a, push up the lower surface 2g of the lift 2, change the cargo receiving surface 2b to a horizontal position, and bring the stopper 2d into contact with the abutting body 3a on the frame 3. The load receiving surface 2b of the lift 2 is placed in a horizontal position with its height aligned with the height of the bottom surface of the material W to be polished (FIG. 4).

Next, the loading pusher 5 moves forward, uses its tip member 5a to push and load the material W to be polished from the transport conveyor T onto the receiving surface 2b of the lift 2, and then retreats to its original position ( Figure 5).

After that, when the inclined cylinder 4 descends, the lift 2 rotates in the direction in which the stopper 2d and the contact body 3a move away from each other, that is, to the left around the pin 2c (the rotating part of the lift 2 when loaded). Center of gravity is pin 2c
After tilting to a specific angle (configured to be more to the left), it comes into contact with a stopper 2e (position adjustable) and is stopped. Here, the specific angle is the angle at which the shot particles slide due to the slope of the part of the material to be polished where shot particles tend to accumulate, or the angle to avoid the blind spot if there is a blind spot in the material to be polished. Yes, and will be set as appropriate depending on the situation. Note that this angle can be adjusted by changing the vertical position of the stopper 2e. Further, the hanging angle can be adjusted by providing a hinge 1e and an angle adjustment lever 1f on the sub-hanger 1 as shown in FIG. 12, and changing the angle α between the narrow width portion 1a and the wide width portion 1b. This can be easily done by doing the following:

Due to the inclination of the lift 2, the hanging part 1c becomes a hook.
It assumes the posture just before engagement directly above Ha (6th
figure). Next, when the lift 2 is lowered by driving the lifting cylinder 2f, the hanging part 1c engages with the hook Ha, and as the lowering progresses further, the sub-hanger 1 tilts the workpiece W at a specific angle. While being suspended, it is suspended from the main hanger H (FIG. 7), and transported to the cleaning room P in this state.

The material to be polished W, which has been completely polished in the grinding room P, is transported by an endless conveyor line S to an unloading station Q and stopped there, where unloading begins. , loading station R
It is the same time as the loading in , and its effect is exactly the opposite.

When the material to be polished W stops at the unloading station Q, the lift 2' (unloading lift) rises and lifts the material to be polished W, and at the same time lifts the sub-hanger 1 to connect the hanging part 1c and the hook Ha. Release the engagement (Figure 6). Next, raise the inclined cylinder 4,
The lift 2' is placed in a horizontal position, and the stopper 2d is brought into contact with the contact body 3a to stabilize the horizontal position (8th
figure).

Next, the unloading pusher 6 moves forward, and after unloading the workpiece W to be polished from the top of the lift 2' onto the conveyor T using its tip member 6a, it retreats to its original position (Fig. 4). ).

When the tilting cylinder 4 descends and the lift 2' tilts to a specific angle, the sub-hanger 1 placed on the lift 2' also tilts at the same time and the hanging portion 2c
is moved directly above Futsuk Ha.

Next, when the lifting cylinder 2f descends, the hanging portion 1c engages with the hook Ha, the sub-hanger 1 is suspended from the main hanger H (Fig. 2), and the endless conveyor line S moves the loading station R to the loading station R. can be moved to the position.

By repeating the above operations, the material to be polished W is set at a specific angle of inclination, and is automatically polished, loaded, unloaded, and transported without any human intervention. .

In this embodiment, the operating mechanism of the lifting cylinder 2f, the tilting cylinder 4, the pushers 5, 6, etc. is an air cylinder, but the present invention is not limited to this, and other operating mechanisms such as a hydraulic cylinder, an electric actuator, etc. It may be.

Moreover, the shape of the sub-hanger is only one example shown in this example, and it is desirable that it be an endless shape that has an engaging part for hanging the material to be polished and an engaging part with the main hanger, but other shapes are also possible. However, it does not depart from the scope of the present invention.

As described in detail above, the present invention provides a material to be polished that has a portion where shot particles tend to accumulate, a slope of a specific angle on which the shot particles slide, and a material to be polished that has a portion that is a blind spot of the shot. The wood is tilted at a specific angle to eliminate blind spots for effective cleaning, and has the excellent effect of automatically performing cleaning, loading, unloading, transport, etc. without any human intervention. It is something.

[Brief explanation of the drawing]

FIG. 1 is a layout diagram (plan view) of the entire apparatus of the present invention. Figures 2 to 8 are side views of the device of the present invention, with Figure 2 showing the state in which the lift for loading (unloading) without a load is lowered, and Figure 3 showing the lift for loading (unloading) without a load. FIG. 3 is a diagram showing a state in which the utility lift is raised. FIG. 4 is a diagram showing a state in which the loading (unloading) lift is fixed in a horizontal position, and FIG. 5 is a diagram showing the operating state of the loading pusher. FIG. 6 shows a state in which the loading (unloading) lift is tilted during loading, and FIG. 7 shows a state in which the lift is lowered in the state shown in FIG. 6. FIG. 8 is a diagram showing the loaded unloading lift in a horizontal position just before unloading.
FIG. 9 is a plan view of the apparatus of the present invention, showing the state in which the loading pusher is in operation. Fig. 10 is a front view of the sub-hanger when loaded, and Fig. 11 is a front view of the sub-hanger when loaded.
It is a XX sectional view in a figure. FIG. 12 is a diagram showing an example of a sub-hanger inclination angle adjustment device. 1: Sub hanger, 2: Loading lift, 2':
Lift for unloading, 2b: Load receiving surface, 2f: Elevating cylinder, 3: Frame, 4: Inclined cylinder, 5: Pusher for loading, 6: Pusher for unloading, P: Grinding room, Q: Unloading station, R: Loading Included station, S: Endless conveyor line, H: Main hanger,
W: Material to be polished, T: Transport conveyor.

Claims (1)

[Claims] 1. In hanger type shot blasting, a method of loading and unloading, transporting and polishing the material to be polished by giving the material to be polished at a specific angle of inclination; A loading lift that can be rotated and vertically raised and lowered is raised to a predetermined height, and the sub-hanger for hanging the material to be polished is pushed up by the loading lift to engage it with the main hanger for transportation. a step of changing the loading lift from an inclined state to a horizontal state; and moving the material to be ground onto the loading lift by advancing a loading pusher that operates in a horizontal direction. loading and engaging the material to be ground with the sub-hanger; retracting the loading pusher to its original position; tilting the loading lift to the specific angle; lowering the loading lift to engage the sub-hanger with the main hanger and suspending the material to be polished; The process of transporting the material to a shot processing area and subjecting it to shot blasting; and the step of transporting the main hanger at the position of the unloading lift, which is capable of rotating between the tilted state at the specific angle and the horizontal state and vertically moving up and down. a step of raising the empty unloading lift to lift the material to be polished while keeping it tilted at the specific angle and disengaging the main hanger and the sub-hanger; , a step of changing the unloading lift from the inclined state to a horizontal state; a step of unloading the material to be polished from above the unloading lift by advancing an unloading pusher that operates in a horizontal direction; retracting the unloading pusher to its original position; tilting the unloading lift to the specific angle; and lowering the unloading lift to engage the sub-hanger on the unloading lift with the main hanger. and a step of transporting the main hanger and the sub-hanger to the loading position of the material to be polished by the transport means, and each step is performed in the above order. A method for loading and unloading materials to be polished for hanger-type shotblasting, characterized by automatically operating and repeating each process. 2. A hanger-type shot blasting device that loads, unloads, transports, and polishes the material to be polished by giving it a specific angle of inclination, and includes a plurality of main hangers for suspending the material to be polished. A conveyor line that is suspended and circulates in an endless path, and a grinder that is installed on the circulating route of the conveyor line and that performs polishing with a shot on the material to be polished that is suspended from the main hanger and is conveyed. a cleaning room; a loading station that is provided upstream of the cleaning room on the circulation route of the conveyor line and suspends the material to be polished from the main hanger; and a loading station that suspends the material to be polished from the main hanger; an unloading station that is provided on the downstream side of the upper grinding chamber and that removes the material to be polished suspended from the main hanger; and a first engagement that can be engaged with the main hanger. Department and
a frame body including a second engaging portion that can engage with the material to be polished, and the first and second engaging portions engage with the main hanger and the material to be polished, respectively. The material to be polished is suspended at the specified angle with respect to the main hanger by vertical movement with respect to the main hanger and rotation around a single axis substantially parallel to the conveyor line. thereby being engaged with and disengaged from the main hanger, and engaging with the material to be ground by moving the material to be ground in one horizontal direction;
a sub-hanger that can be removed; a first mounting section that is located at the loading station and that mounts the sub-hanger; and a second mount section that mounts the material to be polished; The first engaging portion of the sub-hanger mounted on the first mounting portion is raised and lowered in the inclined state by the actuator, and in the raised position, the first engaging portion of the sub-hanger is engaged with and disengaged from the main hanger. The material to be polished is supported rotatably around an axis substantially parallel to the conveyor line, and is rotated between the inclined state and the horizontal state, and in the horizontal state, the material to be polished is rotated in the horizontal direction. By moving to
a loading lift that allows the material to be polished to be transferred to the second loading section and to engage with the second engaging section of the sub-hanger; A loading lift rotation actuator that rotates the loading lift in a raised position by a loading lift lifting actuator about the one axis to position it in a horizontal state; Therefore, the material to be polished is provided in a substantially horizontal state corresponding to the loading lift which is in a horizontal state, and is moved in the horizontal direction after being carried into the loading station by a predetermined carrying means. a loading pusher that is mounted on the second mounting section of the loading lift; a first mounting section that is located at the unloading station and that mounts the sub-hanger; and a first mounting section that mounts the material to be polished. the sub-hanger, which is raised and lowered in the inclined state by an unloading lift lifting actuator, and in which the sub-hanger suspended from the main hanger is detached from the main hanger in the raised position; , while being rotatably supported around an axis substantially parallel to the conveyor line to rotate between the inclined state and the horizontal state, and in the horizontal state, the second By horizontal movement of the material to be ground mounted on the mounting section, the material to be ground is disengaged from the second engaging section of the sub-hanger and is discharged from the second mounting section. and an unloading lift rotation actuator that rotates the unloading lift around the one axis in a raised position of the unloading lift by the unloading lift elevating actuator to position the unloading lift in a horizontal state. , the unloading lift is provided in a substantially horizontal state corresponding to the unloading lift which is brought into a horizontal state by rotation by the unloading lift rotation actuator, and the said unloading lift is mounted on the second mounting portion of the unloading lift. moving the material to be polished horizontally and discharging it from the second loading section;
A hanger-type shotblasting material loading/unloading device, comprising: an unloading pusher for transferring the material to be polished from the unloading station to a predetermined carrying-out means.