JPH1035841A - Concrete product reversing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the force required for reverse rotation by controlling each product support base so as to be moved in the opposite direction at the time of narrowing or widening a space between a pair of product support bases, and passing an axis of a reverse shaft of a reverse frame through a nearly central part of a block pinched by the pair of product supporting bases. SOLUTION: A concrete reversing device 1 is formed of a support frame and a reverse frame pivotally fitted to the support frame freely to be reversed. The reverse frame has a pair of product support bases 10, 11 opposite to each other provided so that a space between them can be freely narrowed and widened. An axis X of a reverse shaft 4 of the reverse frame is provided at a position passing through a space pinched by the product support bases 10, 11 (a nearly central part of the space). When a concrete product C is fed onto the product support base 10, the product support base 10 is moved upward and the product support base 11 are moved downward. With this structure, a center of gravity G of the concrete product C comes close to the axis X of the reverse shaft 4, and the force to be required for reverse rotation can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new concrete product reversing machine for performing a reversing operation necessary for transporting or stocking a concrete product in a concrete product manufacturing plant or the like.

[0002]

2. Description of the Related Art Concrete products are usually manufactured with the front side facing downward, since the portion that is in contact with the bottom of the formwork is usually most beautifully finished. Therefore, the product must be turned upside down after demolding. Often. For such reversing work, for example, a concrete product reversing machine as shown in Japanese Utility Model Laid-Open No. 4-130225 has been used.

[0003] This reversing machine 40, as shown in FIG.
A pair of arms 43, which rotate around a reversing shaft 41 near the center in the height direction and can vertically turn from a vertical state to a body 42 capable of vertically holding the concrete product in a vertical direction so as to clamp or release the concrete product from the vertical direction. And the reversing axis 4
1 is provided on the back of the main body.

[0004]

In the conventional concrete product reversing machine, since the reversing shaft is provided on the back of the main body, the distance between the reversing axis X and the center of gravity G of the concrete product must be increased. Required a great deal of force to flip. In addition, such reversing machines are suitable for reversing large concrete products, but for reversing small concrete products such as sidewalk slabs and curb blocks, concrete product feeding and discharging are required. It was not suitable and was not suitable.

[0005]

SUMMARY OF THE INVENTION The present invention comprises a support frame and a reversal frame pivotally mounted on the support frame such that the reversal frames are movable relative to one another to narrow or widen each other. Having a pair of product supports,
A concrete product reversing machine in which an axis of a reversing axis of a reversing frame penetrates a space sandwiched by a pair of opposing product supports, wherein the pair of product supports move to narrow or widen an interval. Are controlled so that each product support moves in the opposite direction at the same speed, and the axis of the reversal axis of the reversing frame passes through substantially the center of the space sandwiched by the pair of opposing product supports. This is a concrete product reversing machine.

[0006] The inverted concrete product is supported in a space sandwiched by a pair of opposing product supports, and the axis of the inverted shaft passes through this space, so that the distance between the inverted shaft core and the center of gravity of the concrete product is increased. Is extremely small, the force required for the reversal may be small, the motor can be downsized, the power can be saved, and the reversing operation is more stable. Since the center of gravity of a concrete product is often located near the center, when the axis of the reversing axis of the reversing frame passes almost through the center of the space sandwiched between the pair of opposing product supports, the axis of the reversing axis becomes almost It passes through the center of gravity of the concrete product and is most desirable. In this case, since the product supports are controlled to move in the opposite direction at the same speed when the product supports are moved to narrow or widen the gap, the axis of the reversing axis of the reversing frame is Irrespective of the movement of the table, it always passes through substantially the center of the space.

[0007] Transfer rollers can be arranged on opposite sides of the product support to enable the taking in and out of the concrete product. Thereby, the feeding of the concrete product to the reversing machine and the feeding of the inverted concrete product can be automated, which is particularly convenient for handling small-sized concrete products.

The reversing frame is formed in a substantially U-shape by a back plate and side members at both ends of the reversing frame. A reversing shaft is formed on the outer side of both side members, and a guide rail of a product support is provided on the inner side. Can be. Guide rollers are provided on both side ends of the product support base, and the guide rollers are configured to slide along the guide rails, so that the reversing frame is strong and the product support base can be moved smoothly. .

Although various mechanisms for moving the product support are conceivable, they can be easily and reliably performed by engaging pinions provided on both sides of the product support with a rack formed on the guide rail side surface.

[0010] When the pair of product supports are moved in a direction to reduce the distance between them and the concrete product is sandwiched and the concrete product is inverted, a small gap can be provided between the product support and the concrete product. In this way, when multiple small concrete products are inverted at the same time, even if the concrete products are not aligned neatly before inversion, when the inversion starts, the concrete products move until they come into contact with the backboard, At the end of the reversal, they will be aligned along the back plate.

Various reversing mechanisms for the reversing frame are conceivable. However, if the supporting frame is provided with an annular rack, and the reversing frame is provided with a gear that meshes with the annular rack, and the reversing is performed by the annular rack and the gear, the reversing can be performed easily and reliably. It can be carried out.

[0012]

Embodiments of the present invention will be described below with reference to the drawings showing examples. FIG. 1 is a sectional view of a concrete product reversing machine 1 according to an embodiment, and FIG.
3 is a horizontal partial cross-sectional view of the reversing machine 1, FIG. 4 is a perspective view of the reversing frame 3, FIG. 5 is an explanatory view of an example of use of the reversing machine 1, and FIGS. FIG. 4 is an explanatory diagram of an operation of the machine 1.

The concrete reversing machine 1 includes a support frame 2
And a reversing frame 3 pivotally mounted on the supporting frame 2 so as to be reversible. The reversing frame is a pair of opposing product supports 1 which are movable to narrow or widen each other.
0, 11 and the axis X of the reversal axis of the reversal frame 3 is
As shown in FIG. 1, a pair of opposing product supports 10, 1
1 (at the center of the space). The support frame 2 is formed by integrating plate members on both sides with a bottom plate 24 and a connecting member 25. Annular racks (chain racks) are provided on the inner surfaces of the plate members on both sides. The reversing shaft 4 of the reversing frame 3 is mounted on the plate-like member substantially at the center.

As shown in FIG. 4, the reversing frame 3 is formed in a substantially U-shape by a back plate 7 and side members 8 at both ends thereof. H-shaped steel for reinforcement is welded to the back surface of the back plate 7. The side member 8 is a thick iron plate. The reversing shafts 4 are formed on the outer surfaces of the side members 8 on both sides, and the guide rails 5 are provided on the inner side. A rack 6 is provided on a side surface of the guide rail 5. Two upper and lower product supports 10 and 11 are arranged inside the guide rail 5.

The product supports 10 and 11 are each formed of a square frame formed of an iron plate, and seven transfer rollers 1 each mounted on the frame.
Consists of 2 etc. The transfer roller 12 is provided on the product supports 10 and 11.
, And the rotation of the motor 16 on the back side of the product support is transmitted, and each of the seven is rotated in conjunction with a chain (not shown). Product support 1
Guide rollers 13 protrude from both sides of 0 and 11, and the guide rollers 13 engage with the guide rail 5 and slide. That is, the product supports 10 and 11 move along the guide rail 5. As shown in FIGS. 2 and 3, a motor 14 is provided on the back surfaces of the product supports 10 and 11, and the rotation of the motor 14 is performed from a shaft 15 by a gear (pinion gear) 1.
7 is transmitted. The gear 17 protrudes from both sides of the product supports 10 and 11 and meshes with the rack 6. The product support moves up and down by rotation of the motor 14. Product support base 10, 1
1 is controlled so that when one moves upward, the other moves downward by the same amount, and when one moves downward, the other moves upward by the same amount. The product support 10 has a phototube sensor 22 and the product support 11 has a sensor 2.
3 are provided, each of which senses a concrete product.

On the back surface of the back plate 7 of the reversing frame 3, a reversing motor 19 supported by the H-shaped steel 9 is provided.
The rotation of the motor 19 is geared (sprocket) by the shaft 20.
18 is transmitted. The gear 18 is, as shown in FIGS.
It projects outward from both sides of the reversing frame 3 and engages with the annular rack 21. The reversing frame 3 is reversed by the rotation of the motor 19.

The concrete product reversing machine 1 is arranged in a concrete product manufacturing plant, for example, as shown in FIG. The concrete product C is manufactured with the front side down on the manufacturing line 33. The manufactured concrete product C is moved onto the moving vehicle 30 by the vacuum crane 34. On the moving vehicle 30, there is a concrete product C
Are moved in, for example, 9 rows × 2 steps, for a total of 18 rows. When the movement of the 18 concrete products is completed, the moving vehicle 30 moves to the left and stops in front of the concrete product reversing machine 1.
A transfer roller is provided on the upper surface of the moving vehicle 30, and the concrete product is sent deep into the product support 10 by rotating the transfer roller and the transfer roller 12 of the product support 10 of the reversing machine 1, and the photoelectric tube sensor 22. When the roller detects the concrete product, the rotation of the transfer roller stops. After that, the concrete product reversing machine 1 operates and the concrete product 1
Eight are flipped at once. When the reversal is completed, the transfer roller 12 of the product support 11 rotates, and the concrete product is sent out onto the moving vehicle 31 on the exit side. A transfer roller is provided on the upper surface of the moving vehicle 31 similarly to the moving vehicle 30. When the delivery is completed, the mobile vehicle 31 moves to the left and stops in front of the platform 32. A transfer roller is similarly provided on the upper surface of the table 32, and the concrete product is mounted on the table 32.
Sent up. Banding is performed on the table 32,
The 18 concrete products are combined and moved to the stock yard by catching 35.

Next, the operation of the concrete product reversing machine 1 will be described with reference to FIGS. Before inversion, FIG.
As shown in the figure, the product support 10 is in a lower position, and the product support 11 is in an upper state. Concrete product 10 is transport roller 1
It is fed onto the product support 10 by the rotation of 2. At this time, the concrete products are randomly arranged. When the concrete product reaches the photoelectric tube sensor 22, the sensor 22 detects the concrete product, the rotation of the transfer roller stops, and the concrete product also stops. Next, the motor 14
Operates, the gear 17 rotates, and the product support 10 moves upward and the product support 11 moves downward so as to sandwich the concrete product. When the sensor 23 comes into contact with the concrete product, the motor 14 stops and the product support 10, 10, 1
The movement of 1 also stops. At this time, as shown in FIG.
There is a slight gap 26 without contacting 2. The center of gravity G of the concrete product is very close to the axis X of the reversing shaft 4.

Next, the motor 19 operates, the gear 18 rotates, and the reversing frame 3 starts reversing. As shown in FIG. 8, when the reversing frame 3 is reversed to some extent, the concrete product C moves until it contacts the back plate 7 due to its weight, and the plurality of concrete products are neatly aligned. As shown in FIG. 9, when the inverted frame 3 is inverted by 180 degrees, the motor 19 stops, and the inversion of the inverted frame 3 also stops. In this state, the product support 11 is located on the lower side, and the product support 10 is located on the upper side. Next, the transfer roller 12 of the product support 11 rotates, and a plurality of concrete products C are sent out in an aligned state as shown in FIG.

The above-described concrete product reversing machine 1 is one embodiment, and it is a matter of course that the present invention is not limited to the shape of each part and the number of parts in the present invention.

[0021]

According to the concrete product reversing machine of the present invention, since the axis of the reversing shaft and the center of gravity of the concrete product are close to each other,
The force required for the reversal may be small, the size of the motor can be reduced, the power can be saved, and the reversal operation can be performed stably.

By disposing the transfer rollers on opposite sides of the product support, the concrete product can be sent to the reversing machine,
The delivery of the inverted concrete product can be automated, which is particularly convenient for handling small concrete products.

The reversing frame is formed in a substantially U-shape by a back plate and side members at both ends thereof. When the reversing frame is moved in the direction of narrowing the pair of product support bases to sandwich the concrete product and revert the concrete product, If a small gap is formed between the support base and the concrete product, when the plurality of concrete products are inverted, the concrete products can be aligned at the same time as the inversion.

[Brief description of the drawings]

FIG. 1 is a sectional view of a concrete product reversing machine 1.

FIG. 2 is a partially cutaway front view of the concrete product reversing machine 1.

FIG. 3 is a horizontal partial sectional view of the concrete product reversing machine 1.

FIG. 4 is a perspective view of a reversing frame.

FIG. 5 is an explanatory diagram of a usage example of the concrete product reversing machine 1.

FIG. 6 is an explanatory diagram of the operation of the concrete product reversing machine 1.

FIG. 7 is an explanatory diagram of the operation of the concrete product reversing machine 1.

FIG. 8 is an explanatory diagram of the operation of the concrete product reversing machine 1.

FIG. 9 is an explanatory diagram of the operation of the concrete product reversing machine 1.

FIG. 10 is an explanatory diagram of the operation of the concrete product reversing machine 1.

FIG. 11 is a side view of a conventional concrete product reversing machine 40.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 concrete product reversing machine 2 support frame 3 reversing frame 4 reversing shaft 5 guide rail 6 rack 7 back plate 8 side member 8 a notch 9 H-section steel 10 product support stand 11 product support stand 12 transfer roller 13 guide roller 14 motor (product support) 15 axis 16 motor (for transfer roller operation) 17 gear 18 gear 19 motor (for reversal) 20 axis 21 annular rack 22 sensor 23 sensor 24 bottom plate 25 connecting member 30 moving vehicle 31 moving vehicle 33 manufacturing line 34 vacuum crane 35 Catching 40 Concrete product reversing machine 41 Reversing axis 42 Main body 43 Arm

Claims (3)

[Claims] 1. A reversing frame, comprising a supporting frame and a reversing frame pivotally mounted on the supporting frame. The reversing frame has a pair of opposing product supports that are movable to narrow or widen each other. A concrete product reversing machine in which an axis of a reversing axis of a reversing frame penetrates a space sandwiched by a pair of opposing product supports, wherein the pair of product supports move so as to narrow or widen an interval. In doing so, each product support is controlled to move in the opposite direction at the same speed, and the axis of the reversing axis of the reversing frame passes through substantially the center of the space sandwiched by the pair of opposing product supports. Concrete product reversing machine characterized by the following: 2. A concrete product reversing machine according to claim 1, wherein the reversing frame is formed in a substantially U-shape by a back plate and side members at both ends thereof, and a reversing shaft is formed to protrude outside of both side members, and is formed inside. Is provided with guide rails for a product support base, and guide rollers provided on both side ends of the product support base slide along the guide rails. 3. The concrete product reversing machine according to claim 2, wherein the mechanism for moving the product support is a rack formed on the side surface of the guide rail and a gear provided on both sides of the product support. Concrete product reversing machine