Upper die air bag clamping mechanism

Abstract

The utility model relates to the technical field of brick making, in particular to an upper die air bag clamping mechanism which comprises a fixing plate and a connecting rod penetrating through and fixed to the fixing plate, a clamping block is arranged at the end of the connecting rod, an air bag is arranged on the surface, corresponding to the clamping block, of the fixing plate, and a clamping plate is arranged on the outer wall of the middle section of the connecting rod in a sliding mode. A limiting piece penetrates through the fixing plate in the direction towards the air bag arrangement surface, and when the air bag loses pressure, the limiting piece limits the clamping plate to excessively move upwards.

Description

TECHNICAL FIELD

[0001] The utility model relates to a brick making technical field, concretely relates to a upper die air bag clamping mechanism. BACKGROUND

[0002] When the brick is produced, the mold is used to accommodate the raw materials for making bricks, the mold is divided into upper mold and lower mold, the upper and lower molds are closed by the upper and lower mold connecting mechanism to form a complete mold, and different upper molds and lower molds are used according to different brick shapes. When the upper mold is used, a clamping mechanism is used to fix the upper mold so that the upper mold can resist the influence of gravity and will not fall down, and then the clamping mechanism can move with the lower mold to close the mold. The clamping mechanism can generate a downward pressure by air bag inflation to clamp and fix the upper mold, thereby preventing the upper mold from falling off or being skewed during the closing process.

[0003] Although the above-mentioned prior art can solve the corresponding technical problems, there are still some defects: if the existing upper die air bag clamping mechanism is used and sudden power failure occurs, the pump air pipe connected to the air bag will stop working, the air cavity of the air bag will lose pressure quickly, and the air bag will be quickly crushed by the upper mold, which will cause damage. UTILITY MODEL CONTENTS

[0004] The utility model aims at the defects and deficiencies of the prior art, and provides an upper die air bag clamping mechanism which is not easy to damage and convenient to replace the mold.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an upper die air bag clamping mechanism, including a fixed plate and a connecting rod penetrating and fixed on the fixed plate, the end of the connecting rod is provided with a clamping block, the surface of the fixed plate corresponding to the clamping block is provided with an air bag, the outer wall of the middle segment of the connecting rod is slidingly provided with a clamping plate, and the fixed plate is provided with a limiting piece penetrating the surface of the air bag. When the air bag loses pressure, the limiting piece limits the excessive upward movement of the clamping plate.

[0006] Further improvement is that: the surface of the clamping plate close to the clamping block is provided with a plurality of buffer pads.

[0007] Further improvement is that: the fixed plate is provided with an inflation hole for inflating the air bag.

[0008] Further improvement is that: the limiting piece is provided with two, and the two limiting pieces are staggered distributed on the fixed plate along the vertical center line of the fixed plate.

[0009] Further improvement is that: the limiting piece includes a fixed nut fixed on the fixed plate and a lifting bolt penetrating the fixed nut and the fixed plate, and the outer wall of the lifting bolt is engaged with the inner wall of the fixed nut.

[0010] Further improvement is that the lifting bolt top is further provided with a rotating cap.

[0011] After the above technical scheme is adopted, the utility model has the beneficial effects that when the air bag inner cavity loses pressure due to sudden power failure, if the clamping plate is quickly lifted up, when it moves to a certain height, it can contact the bottom end of the limiting piece, thereby making the limiting piece limit the clamping plate to continue moving upward to extrude the air bag, ensuring that the air bag is still within the designed safe extrusion range when losing pressure, preventing the air bag from being damaged, and at the same time, when the mold is replaced, the height of the limiting piece can be adjusted to adapt to different molds and air bags, without affecting the mold replacement, and the use flexibility is strong. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] Fig. 1 It is the structure schematic view of the front view of the clamping mechanism of the utility model;

[0014] Fig. 2 It is the structure schematic view of the front view of the limiting piece and the fixed plate of the utility model;

[0015] Fig. 3 It is the structure schematic view of the top view of the limiting piece and the fixed plate of the utility model. DETAILED DESCRIPTION

[0016] The utility model will be further described in combination with the drawings and specific embodiments.

[0017] Referring to Figs. 1-3The technical scheme adopted in the embodiment is shown as follows: a top die air bag clamping mechanism, comprising a fixed plate 1 and a connecting rod 3 penetrating through and fixed to the fixed plate 1, the connecting rod 3 being provided with a clamping block 4 at the end thereof, the fixed plate 1 being provided with an air bag 2 on the surface corresponding to the clamping block 4, a clamping plate 5 being slidingly arranged on the outer wall of the middle section of the connecting rod 3, the fixed plate 1 being provided with a limiting piece 6 penetrating through the surface thereof towards the air bag 2, the limiting piece 6 comprising a fixed nut 62 fixed to the fixed plate 1 and a lifting bolt 61 penetrating through the fixed nut 62 and the fixed plate 1, the outer wall of the lifting bolt 61 being engaged with the inner wall of the fixed nut 62, when the air bag 2 loses pressure, the limiting piece 6 limits the clamping plate 5 from moving upward excessively, in use, the edge of the top die is placed between the clamping plate 5 and the clamping block 4, and the air bag 2 is inflated to expand and generate pressure on the surface of the clamping plate 5, so that the clamping plate 5 moves downward along the connecting rod 3 and clamps and holds the top die together with the clamping block 4, at the same time, the lifting bolt 61 of the limiting piece 6 is twisted to rotate and lift along the fixed nut 62, so as to adjust the limiting height, when the air bag 2 loses pressure suddenly due to sudden power failure, if the clamping plate 5 moves upward quickly, when it moves to a certain height, it can contact the bottom end of the lifting bolt 61 of the limiting piece 6, at this time, the lifting bolt 61 can limit the clamping plate 5 from continuing to move upward, so that the air bag 2 is still within the designed safe extrusion range when it loses pressure, preventing the air bag 2 from being damaged, at the same time, when the die is replaced, the height of the lifting bolt 61 of the limiting piece 6 can be adjusted to adapt to different dies and air bags 2, without affecting the die replacement, and the use flexibility is high;

[0018] The surface of the clamping plate 5 close to the clamping block 4 is provided with a plurality of buffer pads 7, which are beneficial to buffer the pressure of the clamping plate 5 on the surface of the top die when the top die is clamped, avoiding damage to the top die;

[0019] The fixed plate 1 is provided with an inflation hole 11 for inflating the air bag 2, which is beneficial to make the inflation of the air bag 2 more convenient;

[0020] The limiting piece 6 is provided with two, and the two limiting pieces 6 are staggered and distributed on the fixed plate 1 along the vertical center line of the fixed plate 1, which is beneficial to synchronous limiting from both sides, avoiding the inclination imbalance of the clamping plate 5 caused by unilateral limiting;

[0021] The top of the lifting bolt 61 is further provided with a rotating cap 63, which is beneficial to make the twisting of the lifting bolt 61 more labor-saving.

[0022] The utility model discloses a working principle: when using, the upper die edge is placed between the clamp plate 5 and the clamping block 4, and the air bag 2 is inflated, makes its inflation to the surface of clamp plate 5 produce pressure, thereby to make clamp plate 5 along connecting rod 3 move down, and cooperate clamping block 4 to fix the upper die clamping, simultaneously, twist the lifting bolt 61 of limiting piece 6, make it along fixed nut 62 rotate and lift, thereby to adjust the limiting height, when the air bag 2 inner chamber loses pressure suddenly, if clamp plate 5 quickly upjacks, when it moves to certain height, can make it with the bottom end contact of lifting bolt 61 of limiting piece 6, at this moment can limit clamp plate 5 to continue rising through lifting bolt 61, ensure that the air bag 2 loses pressure, still be in its designed safe extrusion range, prevent the air bag 2 damage, and when replacing the die, can through the height of adjusting the lifting bolt 61 of limiting piece 6 to adapt to different dies and air bag 2, will not influence die replacement, and the use flexibility is strong.

[0023] The utility model wants to protect the structure of product, the model of each element is not the content of the utility model protection, also is the public known technology, as long as the element of market can realize the function of the above-mentioned utility model can be as a kind of selection application.Therefore the model of element and other parameters are not detailed in the utility model.The contribution of the utility model is that each element is combined scientifically.

[0024] The above shows and describes the basic principle and main features of the utility model and its advantages, and the technical personnel of the industry should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and description are only described in the principle of the utility model, under the premise that the spirit and scope of the utility model are not departed from, the utility model will have various changes and improvements, and these changes and improvements all fall into the range of the utility model to be protected, and the protection range of the utility model is defined by the attached claims and its equivalents.The utility model is not detailed, and it is the public known technology of the technical personnel in the art.

Claims

1. A clamping mechanism for an upper mold airbag, comprising a fixed plate (1) and a connecting rod (3) penetrating and fixed to the fixed plate (1), wherein a clamping block (4) is provided at the end of the connecting rod (3), an airbag (2) is provided on the surface of the fixed plate (1) corresponding to the clamping block (4), and a clamping plate (5) is slidably provided on the outer wall of the middle section of the connecting rod (3), characterized in that: The fixing plate (1) is provided with a limiting piece (6) penetrating through the surface direction towards the air bag (2), and the limiting piece (6) limits the excessive upward movement of the clamping plate (5) when the air bag (2) loses pressure.

2. An upper die air bag clamping mechanism according to claim 1, wherein: The clamping plate (5) is provided with a plurality of buffer washers (7) on the surface close to the clamping block (4).

3. An upper die air bag clamping mechanism according to claim 1, wherein: The fixing plate (1) is provided with an inflation hole (11) for inflating the air bag (2).

4. The upper die air bag clamping mechanism of claim 1, wherein: The limiting piece (6) is provided with two, and the two limiting pieces (6) are staggered on the fixing plate (1) along the vertical center line of the fixing plate (1).

5. The upper die air bag clamping mechanism of claim 1, wherein: The limiting piece (6) comprises a fixed nut (62) fixed on the fixing plate (1) and a lifting bolt (61) penetrating through the fixed nut (62) and the fixing plate (1), and the outer wall of the lifting bolt (61) is engaged with the inner wall of the fixed nut (62).

6. An upper die air bag clamping mechanism according to claim 5, wherein: The lifting bolt (61) is further provided with a rotating cap (63) at the top.

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