A die frame floating demoulding device for a brick press

Abstract

The present invention discloses a die frame floating demoulding device for a brick press, which comprises a left rail, a right rail, a top beam connected to the lower parts of the left rail and the right rail, a driving assembly for driving the top beam to lift and lower, and a die frame arranged above the left rail and the right rail; grooves are provided on the left rail and the right rail, and locking latches cooperating with the grooves are provided on the die frame, and the locking latches extend into the grooves; positioning assemblies and locking assemblies are provided on the left rail and the right rail, the positioning assemblies are used for aligning and locking the left rail and the right rail with the die frame, and the positioning assemblies and the locking assemblies can drive the die frame to rise or fall a predetermined distance relative to the left rail and the right rail, so that the locking latches are fastened or loosened from the grooves. Implementing the present invention can improve the forming quality of large-sized brick blanks and reduce the die changing difficulty of large-tonnage brick presses.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic brick presses, and particularly to a die frame floating demoulding device for a brick press. Background Art

[0002] In a traditional ceramic brick press, the die frame and the bottom plate of the die are connected as a whole through columns and are connected to the press frame through the bottom plate. Above the bottom plate, a push top plate, a middle die plate and a lower die core are arranged in sequence. The push top plate, the middle die plate and the lower die core are connected as a lower die core assembly through magnetic attraction or bolts. An ejection oil cylinder and a die clamping oil cylinder are arranged on the press frame. The ejection oil cylinder raises the lower die core assembly for demoulding; the die clamping oil cylinder drives the lower die core assembly to descend, so as to form a die cavity for brick blank forming between the lower die core assembly and the die frame. The above method is applicable to small-tonnage brick presses. The lower die core of a small-tonnage brick press has a small size and a small weight, and the jacking force required to push the lower die core assembly is small. The push top plate is not easily deformed or deflected, and the forming quality of the brick blank is good.

[0003] However, with the continuous development of building decoration materials, the demand for ceramic large plates and the customized demand for brick blanks are continuously increasing, which makes the tonnage of ceramic brick presses continuously increase. For a brick press with a tonnage of up to tens of thousands of tons, the weight of its lower die core assembly is dozens of tons, and its size length is more than 2 meters. Generally, there are only 2-4 corresponding jacking positions on the push top plate. If the demoulding method in the prior art is adopted, the push top plate is extremely easy to deform, thus affecting the forming quality of ceramic large plates.

[0004] In addition, when replacing the die of a traditional brick press, it is necessary to remove the whole lower die core assembly, the die frame, the columns and the bottom plate from the brick press. For a large-tonnage brick press, it is difficult to replace the die with a forklift or a trailer. First, the jacking force and towing force required by the forklift or trailer are very large, and a forklift or trailer with such capabilities is very expensive. Due to cost considerations, ceramic manufacturers will not be equipped with such equipment. Second, during the towing process, the die is prone to shift, affecting the reliability and safety of die replacement of the brick press. Therefore, the problems of difficult die replacement and high die replacement cost for large-tonnage brick presses also need to be solved urgently. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a die frame floating demoulding device for a brick press, which can improve the forming quality of large-sized brick blanks.

[0006] The technical problem to be solved by the present invention is to provide a die frame floating demoulding device for a brick press, which reduces the difficulty of die replacement for large-tonnage brick presses and reduces the die replacement cost.

[0007] To solve the above technical problems, the present invention provides a die frame floating demoulding device for a brick press, including a left rail, a right rail, a top beam connected to the lower parts of the left rail and the right rail, a driving component for driving the lifting of the top beam, and a die frame arranged above the left rail and the right rail;

[0008] The left rail and the right rail are provided with grooves, and the die frame is provided with latches arranged in cooperation with the grooves, and the latches extend into the grooves;

[0009] The left rail and the right rail are provided with a positioning component and a locking component. The positioning component is used to lock the left rail and the right rail in alignment with the die frame. The positioning component and the locking component can drive the die frame to rise or fall a predetermined distance relative to the left rail and the right rail, so that the latches are fastened or loosened from the grooves.

[0010] As an improvement of the above technical solution, the positioning component includes positioning cylinders arranged on the left rail and the right rail, and the die frame is provided with adapted positioning holes, and the piston rods of the positioning cylinders are inserted into the positioning holes.

[0011] As an improvement of the above technical solution, the locking component includes a plurality of locking cylinders arranged on the left rail and the right rail, and the locking cylinders can longitudinally extend or retract.

[0012] As an improvement of the above technical solution, the left rail is provided with a first groove, and the right rail is provided with a second groove;

[0013] The first groove is arranged on the left side surface and / or the right side surface of the left rail;

[0014] The second groove is arranged on the left side surface and / or the right side surface of the right rail.

[0015] As an improvement of the above technical solution, the latch includes a first latch arranged in cooperation with the first groove and a second latch arranged in cooperation with the second groove;

[0016] The first latch and the second latch are provided with inward and / or outward hooks.

[0017] As an improvement of the above technical solution, the hook includes a suspension part and a buckling part forming an angle of 50° - 90° with the suspension part;

[0018] The buckling part is snapped into the groove, and the angle between the groove and the vertical plane is adapted to the angle between the suspension part and the buckling part.

[0019] As an improvement of the above technical solution, the angle between the suspension part and the buckling part is 90°.

[0020] As an improvement to the above technical solution, the roof beam includes a first roof beam and a second roof beam. The first roof beam and the second roof beam are arranged front and back, and are mutually overlapped with the left rail and the right rail to form a "well" - shaped structure.

[0021] As an improvement to the above technical solution, the driving assembly includes at least two driving elements symmetrically arranged; the driving rod of the driving element is connected to the roof beam.

[0022] As an improvement to the above technical solution, a plurality of rolling assemblies and guiding assemblies are further provided on the left rail and the right rail;

[0023] The rolling assembly includes a plurality of rollers, and the guiding assembly includes a plurality of guiding wheels.

[0024] Implementing the present invention has the following beneficial effects:

[0025] The present invention includes a left rail and a right rail. The bottom surfaces of the left rail and the right rail are connected to the roof beam, and the roof beam is connected to the driving assembly. A mold frame is provided above the left rail and the right rail. Grooves are provided on the left rail and the right rail, and the mold frame is provided with latches that are arranged in cooperation with the grooves. The latches extend into the grooves. Positioning assemblies and locking assemblies are provided on the left rail and the right rail for positioning and locking the mold frame with the left rail and the right rail. In the locked state of the mold frame with the left rail and the right rail, the driving assembly can drive the mold frame to lift through the roof beam, the left rail and the right rail, forming a mold cavity for brick blank forming and demolding between the mold frame and the lower mold core assembly. During demolding, it can be achieved only by the descent of the mold frame, and the required jacking force is small, solving the problem that the push top plate of the traditional brick press is prone to deformation, avoiding damage to the brick blank during demolding, and improving the forming quality of the brick blank. Making the mold frame and the left rail and the right rail into a split - type structure can reduce production costs and processing difficulties; at the same time, it is also convenient for mold replacement and reduces the mold replacement cost.

[0026] Furthermore, the positioning assembly includes positioning cylinders provided on the left rail and the right rail. The mold frame is provided with adapted positioning holes, and the piston rods of the positioning cylinders are inserted into the positioning holes. The positioning device ensures the accurate relative position and reasonable clearance between the mold frame and the lower mold core, preventing interference between the mold frame and the lower mold core when the brick press is working normally; at the same time, it limits the lateral offset of the mold frame after being subjected to extrusion force, improving the stability and reliability during brick pressing.

[0027] Even further, rolling assemblies and guiding assemblies for facilitating the transportation of the mold frame are further provided on the left rail and the right rail, and the working surface of the guiding assembly contacts the mold frame. The rolling assembly can reduce the friction during mold replacement, and the guiding assembly avoids the offset of the mold frame during movement, improving the safety during mold replacement. Description of the Drawings

[0028] Figure 1It is the front view of the first embodiment of the demolding device involved in the present invention;

[0029] Figure 2 It is the top view of the demolding device of the present invention after removing the mold frame;

[0030] Figure 3 It is Figure 1 the sectional view taken along line A-A in

[0031] Figure 4 It is Figure 3 the enlarged view of the first embodiment of part A in

[0032] Figure 5 It is the front view of the second embodiment of the demolding device involved in the present invention;

[0033] Figure 6 It is the front view of the third embodiment of the demolding device involved in the present invention;

[0034] Figure 7 It is Figure 3 the enlarged view of the second embodiment of part A in Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside and outside that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and they do not specifically limit the present invention.

[0036] Referring to Figures 1 to 4 , the present invention provides a mold frame floating type demolding device for a brick press, including a left rail 1a, a right rail 1b, a top beam 2 connected to the lower parts of the left rail 1a and the right rail 1b, a driving assembly 3 for driving the top beam 2 to lift and lower, and a mold frame 4 arranged above the left rail 1a and the right rail 1b;

[0037] The left rail 1a and the right rail 1b are provided with grooves 11, and the mold frame 4 is provided with latches 41 arranged in cooperation with the grooves 11, and the latches 41 extend into the grooves 11;

[0038] The left rail 1a and the right rail 1b are provided with a positioning assembly 5 and a locking assembly 6. The positioning assembly 5 is used to align and lock the left rail 1a and the right rail 1b with the mold frame 4. The positioning assembly 5 and the locking assembly 6 can drive the mold frame 4 to rise or fall a predetermined distance relative to the left rail 1a and the right rail 1b, so that the latches 41 are fastened or loosened from the grooves 11.

[0039] Specifically, the free end of the driving assembly 3 is connected to the top beam 2. The left rail 1a and the right rail 1b are connected to the top beam 2. The left rail 1a, the right rail 1b and the mold frame 4 can be connected into a whole through the positioning assembly 5 and the locking assembly 6, so that the driving assembly 3 can drive the mold frame 4, the left rail 1a, the right rail 1b and the top beam 2 to lift and lower synchronously to realize filling or demolding. It should be noted that in traditional brick presses, the ejection cylinder is used to push the ejection plate for demolding. Affected by the structure of the brick press, there are generally only two or four ejection positions. For a lower die core with a length of 3-4m, a width of 2-3m or even larger dimensions, its ejection plate is prone to deformation, resulting in an unstable ejection process, thus affecting the forming quality of the brick blank. In the present invention, the mold frame 4 is driven by the driving assembly 3 to descend for demolding. As long as the gravity of the mold frame 4 plus the downward acting force of the driving assembly 3 is greater than the friction between the mold frame 4 and the brick blank, the required jacking force is small, and the mold frame 4 is not easily deformed or offset, which can improve the forming quality of the brick blank.

[0040] The positioning assembly 5 and the locking assembly 6 drive the mold frame 4 to rise a predetermined distance relative to the left rail 1a and the right rail 1b, so that the lock catch 41 is fastened to the groove 11, and the mold frame 4 is locked with the left rail 1a and the right rail 1b into a whole. The piston rods of the positioning assembly 5 and the locking assembly 6 retract, so that the mold frame 4 descends a predetermined distance relative to the left rail 1a and the right rail 1b under the action of gravity, so that the lock catch 41 is loosened from the groove 11, and the mold frame 4 is loosened from the left rail 1a and the right rail 1b. The mold frame 4 and the left rail 1a and the right rail 1b can be disassembled, which can reduce the thickness of the mold frame 4 and reduce the production cost. Further, compared with replacing the whole mold of the traditional brick press, when changing the mold of the brick press adapted to the present invention, only the mold frame 4 needs to be connected to the mold to be replaced and then dragged out. Its weight is small and the mold changing difficulty is small; and there is no need to replace the whole set of molds, and the mold changing cost is low.

[0041] See Figure 3 and Figure 4 , the positioning assembly 5 includes positioning cylinders 51 provided on the left rail 1a and the right rail 1b. The mold frame 4 is provided with adapted positioning holes 42, and the piston rods of the positioning cylinders 51 are inserted into the positioning holes 42. Specifically, the bottom surface of the mold frame 4 is provided with positioning holes 42 adapted to the positioning cylinders 51, and the piston rods of the positioning cylinders 51 can be inserted into the positioning holes 42 of the mold frame 4 to make the relative position between the mold frame 4 and the lower die core accurate. Since the positioning holes 42 are adapted to the piston rods of the positioning cylinders 51, a reasonable gap is formed between the mold frame 4 and the lower die core, and the lateral offset amount of the mold frame 4 after being squeezed is limited, which improves the stability of the mold frame 4 after being locked with the left rail 1a and the right rail 1b. When the piston rods of the positioning cylinders 51 are fully extended and their end faces just abut against the positioning holes 42, the positioning assembly 5 can also provide part of the locking force to lock the two of them.

[0042] See Figure 3 and Figure 4 To reliably lock the lock catch 41 and the groove 11, the locking assembly 6 includes a plurality of locking cylinders 61 provided on the left rail 1a and the right rail 1b. The locking cylinders 61 can be longitudinally ejected or retracted. By adopting the form of a plurality of locking cylinders 61, the locking force can be evenly distributed on the plurality of locking cylinders 61, which is beneficial to the miniaturization of the locking cylinders 61 and is convenient for installation between the mold frame 4, the left rail 1a and the right rail 1b, reducing the installation difficulty. In addition, since the length of the mold frame 4 is relatively long, a plurality of locking cylinders 61 can provide a plurality of locking positions, making the locking process of the mold frame 4 stable.

[0043] See Figure 2 The driving assembly 3 includes a plurality of driving elements 31. The driving rods of the driving elements 31 are connected to the top beam 2, and the plurality of driving elements 31 can be lifted and lowered synchronously. The driving element 31 is a hydraulic cylinder or a lifting screw rod, but is not limited thereto. The top beam 2 includes a first top beam 2a provided at the front end of the lower mold core and a second top beam 2b provided at the rear end of the lower mold core. Both ends of the left rail 1a are respectively connected to the first top beam 2a and the second top beam 2b, and both ends of the right rail 1b are respectively connected to the first top beam 2a and the second top beam 2b. The left rail 1a, the right rail 1b, the first top beam 2a and the second top beam 2b form a "well" - shaped structure, and the left rail 1a and the right rail 1b can move synchronously, making the movement of the mold frame 4 stable.

[0044] See Figure 5 A first groove 11a is provided on the left rail 1a, and a second groove 11b is provided on the right rail 1b. According to the different setting positions of the first groove 11a and the second groove 11b, the lock catch 41 and the groove 11 have various connection forms. Specifically, the first groove 11a is provided on the left side surface and / or the right side surface of the left rail 1a; the second groove 11b is provided on the left side surface and / or the right side surface of the right rail 1b. Correspondingly, the lock catch 41 includes a first lock catch 41a arranged in cooperation with the first groove 11a and a second lock catch 41b arranged in cooperation with the second groove 11b; the first lock catch 41a and the second lock catch 41b are provided with hooks 43 facing inwards and / or outwards.

[0045] Preferably, the first groove 11a is provided on the right side surface of the left rail 1a, and the second groove 11b is provided on the left side surface of the right rail 1b. The first lock catch 41a hooks the first groove 11a, and the left rail 1a provides a rightward acting force to the mold frame 4. The second lock catch 41b hooks the second groove 11b, and the right rail 1b provides a leftward acting force to the mold frame 4. The directions of the two acting forces are both opposite to the direction of the lateral extrusion force received by the mold frame 4 during brick blank forming, thereby improving the stability of the mold frame 4 when subjected to the lateral extrusion force and ensuring the quality of brick blank forming.

[0046] See Figure 6 Figure 6 , the hook head 43 includes a hanging part 431 and a buckling part 432 which forms an angle of 50°-90° with the hanging part 431; the buckling part 432 is snapped into the groove 11, and the angle between the groove 11 and the vertical plane is adapted to the angle between the hanging part 431 and the buckling part 432. Specifically, the hanging part 431 is detachably connected to the bottom surface of the mold frame 4 or the hanging part 431 is integrally formed with the mold frame 4. The angle between the buckling part 432 and the hanging part 431 is 50°-90°. Within this angle range, the rigidity of the latch 41 itself can be satisfied, and at the same time, it is also convenient for the latch 41 to extend into the groove 11.

[0047] Preferably, the angle between the hanging part 431 and the buckling part 432 is 90°, and the upward force exerted by the buckling part 432 on the groove 11 is in the same direction as the force exerted by the locking cylinder 61 on the mold frame 4, which can maximize the conversion of the force exerted by the locking cylinder 61 on the mold frame 4 into the locking force between the latch 41 and the groove 11, so as to improve the locking reliability between the latch 41 and the groove 11.

[0048] See Figure 7 Figure 7 , a plurality of sets of rolling components 7 and guiding components 8 are further provided on the left rail 1a and the right rail 1b; the rolling components 7 include a plurality of rollers 71, and the guiding components 8 include a plurality of guide wheels 81. Among them, the working surface of the roller 71 is higher than the height of the locking cylinder 61, so that after the mold frame 4 is unlocked from the left rail 1a and the right rail 1b, the mold frame 4 is placed on the rollers 71, reducing the front and rear running resistance of the mold frame 4. In addition, the guide wheel 81 abuts against the side surface of the mold frame 4 to limit the lateral offset of the movement of the mold frame 4 and improve the safety during mold change.

[0049] In summary, the present invention is provided with a locking assembly 6 between the left rail 1a and the right rail 1b and the mold frame 4. When the brick press is working normally, the locking assembly 6 locks the mold frame 4 with the left rail 1a and the right rail 1b, and the driving assembly 3 can drive the mold frame 4 to float up and down for filling or demolding. During demolding, the driving assembly 3 drives the mold frame 4 to descend. As long as the gravity of the mold frame 4 plus the downward force of the driving assembly 3 is greater than the friction between the mold frame 4 and the green brick, the required force is small, the movement of the mold frame 4 is stable, the damage to the green brick can be reduced, and the forming quality of the green brick can be improved. In addition, the mold frame 4 and the left rail 1a and the right rail 1b adopt a split structure, which can reduce the thickness of the mold frame 4 to reduce the production and processing costs. Further, during mold change, there is no need to replace the whole set of molds, reducing the mold change cost and the mold change difficulty.

[0050] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A die frame floating demoulding device for a brick pressing machine, characterized in that, It includes a left rail, a right rail, a top beam connected to the lower parts of the left rail and the right rail, a driving assembly for driving the lifting of the top beam, and a mold frame arranged above the left rail and the right rail; The left rail and the right rail are provided with grooves, and the mold frame is provided with latches arranged in cooperation with the grooves, and the latches extend into the grooves; The left rail and the right rail are provided with a positioning assembly and a locking assembly. The positioning assembly is used to lock the left rail and the right rail in alignment with the mold frame. The positioning assembly and the locking assembly can drive the mold frame to rise or fall a predetermined distance relative to the left rail and the right rail, so that the latches are fastened or loosened from the grooves; The top beam includes a first top beam and a second top beam. The first top beam and the second top beam are arranged front and back, and are mutually overlapped with the left rail and the right rail to form a "well" - shaped structure; The left rail and the right rail are further provided with multiple groups of rolling assemblies and guiding assemblies; The rolling assembly includes multiple rollers, and the guiding assembly includes multiple guiding wheels.

2. The die frame floating demoulding device of the brick press according to claim 1, characterized in that, The positioning assembly includes positioning cylinders arranged on the left rail and the right rail. The mold frame is provided with adapted positioning holes, and the piston rods of the positioning cylinders are inserted into the positioning holes.

3. The floating demoulding device for the mould frame of the brick press according to claim 1, characterized in that, The locking assembly includes multiple locking cylinders arranged on the left rail and the right rail, and the locking cylinders can longitudinally eject or retract.

4. The die frame floating demoulding device of the brick press according to claim 1, characterized in that, The left rail is provided with a first groove, and the right rail is provided with a second groove; The first groove is arranged on the left side surface and / or the right side surface of the left rail; The second groove is arranged on the left side surface and / or the right side surface of the right rail.

5. The die frame floating demoulding device of the brick press according to claim 4, characterized in that, The latch includes a first latch arranged in cooperation with the first groove and a second latch arranged in cooperation with the second groove; The first latch and the second latch are provided with inward and / or outward hooks.

6. The die frame floating demoulding device of the brick press according to claim 5, characterized in that, The hook includes a hanging part and a buckling part forming an angle of 50° - 90° with the hanging part; The buckling part is snapped into the groove, and the angle between the groove and the vertical plane is adapted to the angle between the hanging part and the buckling part.

7. The floating demoulding device for the mould frame of the brick press according to claim 6, characterized in that, The angle between the hanging part and the buckling part is 90°.

8. The floating mold frame demolding device of the brick press according to claim 1, characterized in that The driving assembly includes at least two driving elements arranged symmetrically; the driving rods of the driving elements are connected to the top beam.

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