Pressing mechanism of pre-pressing machine

Abstract

The pressing mechanism comprises a main body frame, a hydraulic mechanism is arranged at the top of the main body frame, two first hydraulic cylinders are fixedly arranged on the inner side of the upper portion of the main body frame, and the output ends of the first hydraulic cylinders penetrate through the side wall of the main body frame and are connected with pressing plates. A bottom mounting frame is arranged on the inner side of the bottom of the main body frame, a driving motor is arranged on the inner side of the bottom mounting frame through a support, the output end of the driving motor penetrates through the support, and a driving chain wheel is fixedly connected to the outer side of the driving motor and is in transmission connection with a driven chain wheel through a transmission chain; the bottom of the supporting column structure is rotationally connected with a rotating base through a bearing, the upper portion of the supporting column structure penetrates through the side wall of the bottom frame, and the functions of arranging and stacking and improving the pre-pressing effect are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-pressing machines, in particular to a pressing mechanism of a pre-pressing machine. Background Art

[0002] In the process of producing and processing artificial boards, the boards that have been glued and cored must undergo a pre-pressing process before hot pressing. The purpose of pre-pressing the boards is to prevent excessive bending of the slabs, increase the density of the boards, reduce the thickness of the boards, and expel internal air.

[0003] The pre-pressing machine has a simple processing purpose, namely, pressing the slab, so its structure is relatively simple. The main functional component is the pressing plate connected to the hydraulic cylinder arranged at the upper or lower part, which cooperates with the fixed plate to press the slab arranged between the two plates. The remaining structures are mostly frame structures for support. Because of the simple structure, the function is single. Before the slabs are pre-pressed, they are manually stacked together and loaded onto the fixed plate of the pre-pressing machine by transfer. However, this process will inevitably cause uneven stacking of the slabs. When such slabs are pre-pressed, the part of the slab exposed outside the stacking range cannot be pre-pressed, and the pre-pressing is uneven, which will cause uneven pre-pressing effects of the slabs.

[0004] Therefore, designing a device that can organize the stacking and improve the pre-pressing effect is exactly the problem that the inventor wants to solve. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a pressing mechanism for a pre-pressing machine, which can realize the functions of arranging stacks and improving the pre-pressing effect.

[0006] The technical solution adopted by the device of the utility model is: a pre-pressing machine pressing mechanism, which includes a main frame, a hydraulic mechanism is arranged on the top of the main frame, two first hydraulic cylinders are fixedly arranged on the inner side of the upper part of the main frame, the output end of the first hydraulic cylinder passes through the side wall of the main frame and is connected with a pressing plate, a bottom mounting frame is arranged on the inner side of the bottom of the main frame, an active motor is arranged on the inner side of the bottom mounting frame through a bracket, the output end of the active motor passes through the bracket and is fixedly connected with a driving sprocket on the outer side, the driving sprocket is connected with a driven sprocket through a transmission chain, the inner side of the driven sprocket is fixedly connected with a supporting column structure, the bottom of the supporting column structure is rotatably connected with a rotating base through a bearing, the upper part of the supporting column structure passes through the side wall of the bottom frame, the upper outer side of the supporting column structure and is connected to the bottom A transmission sleeve is slidably arranged between the upper and lower frames, the upper end of the transmission sleeve is connected to a supporting bottom plate, two symmetrically arranged third hydraulic cylinders are respectively arranged on both sides of the bottom frame, the outer side of the output end of the third hydraulic cylinder is connected with a connecting sleeve by bolts, the upper end of the connecting sleeve is connected with a lifting plate, installation spaces are arranged on the inner sides of both ends of the main frame, mounting plates are arranged at the ends of the mounting spaces by bolts, the inner side walls of the mounting plates are connected with mounting frames, a second hydraulic cylinder is fixedly arranged on the mounting frame through a bracket, a push plate is connected to the output end of the second hydraulic cylinder by bolts, and the push plate is connected to two symmetrically arranged guide rods by bolts, a guide sleeve is slidably arranged on the outer side of the guide rod, the guide sleeve is connected to the mounting plate by bolts, and the output ends of the guide rod and the second hydraulic cylinder both pass through the side walls of the main frame.

[0007] Furthermore, two coaxially arranged support rings are arranged at the upper end of the bottom frame, and the radii of the two support rings are different.

[0008] Furthermore, a slide groove matching with the support ring is slidably arranged on the outer side of the top of the support ring, and the slide groove is an annular groove structure, and the slide groove is fixedly arranged on the lower end surface of the support base plate, and the outer diameter of the slide groove is smaller than the width of the support base plate.

[0009] Furthermore, the widths of the lifting plate and the supporting bottom plate are the same as the width of the main frame, and there is a gap between the bottom and the upper edge of the side wall of the lower part of the main frame.

[0010] Furthermore, when the lifting plate is at the lowest point, the lower end surface contacts the upper edge of the side wall of the lower part of the main frame and the height of the upper end surface of the lifting plate is lower than the height of the lower end surface of the supporting bottom plate.

[0011] Furthermore, under normal conditions, the push plate is in contact with the inner side wall of the main frame and the movement tracks of the pressure plate in the vertical direction do not overlap.

[0012] Furthermore, the hydraulic mechanism is connected to the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder respectively through hydraulic pipelines.

[0013] Furthermore, the lower outer side of the support column structure is fixedly connected to the driven sprocket, a rotating base is provided on the bottom outer side of the support column structure, a ball bearing is provided between the rotating base and the bottom of the support column structure, and a thrust bearing is provided between the end face of the driven sprocket and the rotating base.

[0014] The beneficial effects of the utility model device are:

[0015] 1. The utility model adopts a rotatable supporting bottom plate to support the slab, and cooperates with the push plates arranged on both sides to push and sort the stack from different angles to make it more neat, reduce manual picking and adjustment labor intensity, and realize the function of sorting the stack and improving the pre-pressing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural view of the utility model.

[0017] Explanation of the accompanying drawings: 1-main frame; 2-hydraulic mechanism; 3-first hydraulic cylinder; 4-pressure plate; 5-push plate; 6-mounting plate; 7-guide sleeve; 8-guide rod; 9-second hydraulic cylinder; 10-mounting frame; 11-third hydraulic cylinder; 12-lifting plate; 13-connecting sleeve; 14-driving sprocket; 15-transmission chain; 16-driven sprocket; 17-support column structure; 18-transmission sleeve; 19-support ring; 20-slide groove; 21-support base plate; 22-bottom mounting frame. DETAILED DESCRIPTION

[0018] The following is a further description of the present invention in conjunction with specific embodiments. These embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0019] See also Figure 1 This is a structural view of the utility model, a pre-pressing machine pressing mechanism, which includes a main frame 1, a hydraulic mechanism 2 is arranged on the top of the main frame 1, the hydraulic mechanism 2 is the main power source of the utility model, and the pressure is increased by hydraulic pressure to the hydraulic cylinder to press the slab, and two first hydraulic cylinders 3 are fixedly arranged on the inner side of the upper part of the main frame 1, and the output end of the first hydraulic cylinder 3 passes through the side wall of the main frame 1 and is connected to a pressing plate 4. The symmetrical arrangement of the two first hydraulic cylinders 3 can make the output of the pressing plate 4 more uniform when pressing the slab, and the slab is subjected to more uniform force.

[0020] A bottom mounting frame 22 is provided on the inner side of the bottom of the main frame 1, and a driving motor is provided on the inner side of the bottom mounting frame 22 through a bracket, the output end of the driving motor passes through the bracket and is fixedly connected to a driving sprocket 14 on the outer side, the driving sprocket 14 is transmission-connected to a driven sprocket 16 through a transmission chain 15, and a support column structure 17 is fixedly connected to the inner side of the driven sprocket 16, and a rotating base is rotatably connected to the bottom of the support column structure 17 through a bearing, and the lower outer side of the support column structure 17 is fixedly connected to the driven sprocket 16, so that the driven sprocket 16 can be transmission-connected to the support column structure 17, and a rotating base is provided on the outer side of the bottom of the support column structure 17, and a ball bearing is provided between the rotating base and the bottom of the support column structure 17, and a thrust bearing is provided between the end face of the driven sprocket 16 and the rotating base, and through the joint action of the two bearings, the support column structure 17 reduces resistance when it rotates under force.

[0021] The lower part of the support column joint is a cylindrical structure and the upper part is a hexagonal columnar structure. The upper part of the support column structure 17 passes through the side wall of the bottom frame. A transmission sleeve 18 is slidably arranged on the outer side of the upper part of the support column structure 17 and between the bottom frame. A hexagonal slot matching the upper part of the support column structure 17 is arranged inside the transmission sleeve 18. The hexagonal slot and the upper part of the support column structure 17 are slidably matched and transmission matched. When the support column structure 17 rotates, it will drive the transmission sleeve 18 that is slidably connected with it to rotate together. The upper end of the cylinder 18 is connected to a support base plate 21, and two coaxially arranged support rings 19 are provided at the upper end of the bottom frame. The two support rings 19 have different radii, and a slide groove 20 matching with the support ring 19 is slidably provided on the top outer side of the support ring 19. The slide groove 20 is an annular groove structure, and the slide groove 20 is fixedly set on the lower end surface of the support base plate 21. The outer diameter of the slide groove 20 is smaller than the width of the support base plate 21. The function of the support ring 19 is to provide support to the support base plate 21 when it is subjected to force, and to provide support and guidance to the support base plate 21 when it rotates.

[0022] Two symmetrically arranged third hydraulic cylinders 11 are respectively arranged on both sides of the bottom frame, and the outer side of the output end of the third hydraulic cylinder 11 is connected with a connecting sleeve 13 by bolts, and the upper end of the connecting sleeve 13 is connected with a lifting plate 12. Installation spaces are arranged on the inner sides of both ends of the main frame 1, and the ends of the installation spaces are provided with mounting plates 6 by bolts. The inner side wall of the mounting plate 6 is connected with a mounting frame 10, and a second hydraulic cylinder 9 is fixedly arranged on the mounting frame 10 through a bracket. The output end of the second hydraulic cylinder 9 is connected with a push plate 5 by bolts, and the push plate 5 is connected with two symmetrically arranged guide rods 8 by bolts. The outer side of the guide rod 8 is slidingly provided with a guide sleeve 7, and the guide sleeve 7 is connected to the mounting plate 6 by bolts. The output ends of the guide rod 8 and the second hydraulic cylinder 9 both pass through the side wall of the main frame 1. Through the action of the second hydraulic cylinder 9, the push plate 5 can be controlled to be pushed out in the direction of the supporting bottom plate 21 or retracted in the direction away from the supporting bottom plate 21. Through the action of the push plate 5, the slabs arranged on the supporting bottom plate 21 can be pushed and sorted, and the uneven stacked slabs can be sorted.

[0023] The widths of the lifting plate 12 and the supporting bottom plate 21 are the same as the width of the main frame 1, and there is a gap between the bottom and the upper edge of the side wall of the lower part of the main frame 1. When the lifting plate 12 is at the lowest point, the lower end surface contacts the upper edge of the side wall of the lower part of the main frame 1, and the upper end surface height of the lifting plate 12 is lower than the height of the lower end surface of the supporting bottom plate 21. The third hydraulic cylinder 11 can control the height of the lifting plate 12. When the lifting plate 12 drops to the lowest point, the supporting bottom plate 21 is higher than the lifting plate 12, which provides space conditions for the rotation of the supporting bottom plate 21. At this time, the active motor starts to drive the supporting column structure 17 to rotate, thereby The support base plate 21 is driven to rotate under the support and guidance of the support ring 19. Through the rotation of the support base plate 21, the edge of the slab opposite to the push plate 5 can be changed, so that the slab stack can be adjusted by the push plate 5 at one end, and then the rotation angle is adjusted again by the push plate 5 to further adjust the neatness of the stack. When the action of the push plate 5 ends and returns to the initial position under normal conditions, the support base plate 21 rotates back to its original position, and the lifting plate 12 is raised and returned to its original position under the drive of the third hydraulic cylinder 11. The upper end surface of the lifting plate 12 is flush with the upper end surface of the support base plate 21, and there is a gap between the lifting plate 12 and the support base plate 21.

[0024] Under normal conditions, the push plate 5 is in contact with the inner wall of the main frame 1 and the vertical movement trajectory of the pressure plate 4 does not overlap. The guide rod 8 connected to the push plate 5 always maintains a sliding fit with the guide sleeve 7 when the push plate 5 moves. The hydraulic mechanism 2 is respectively connected to the first hydraulic cylinder 3, the second hydraulic cylinder 9, and the third hydraulic cylinder 11 through hydraulic pipelines.

[0025] The utility model adopts a rotatable supporting bottom plate 21 to support the slab, and cooperates with the push plates 5 arranged on both sides to push and sort the stack from different angles to make it more neat, reduce the labor intensity of manual picking and adjustment, and realize the function of sorting the stack and improving the pre-pressing effect.

Claims

1. A pre-pressing machine pressing mechanism, characterized in that: The invention comprises a main frame (1), wherein a hydraulic mechanism (2) is arranged on the top of the main frame (1), two first hydraulic cylinders (3) are fixedly arranged on the inner side of the upper part of the main frame (1), the output ends of the first hydraulic cylinders (3) pass through the side wall of the main frame (1) and are connected to a pressure plate (4), a bottom mounting frame (22) is arranged on the inner side of the bottom of the main frame (1), an active motor is arranged on the inner side of the bottom mounting frame (22) through a bracket, the output end of the active motor passes through the bracket and is fixedly connected to a driving sprocket (14) on the outer side, the driving sprocket (14) is connected to a driven sprocket (16) through a transmission chain (15), the inner side of the driven sprocket (16) is fixedly connected to a support column structure (17), the bottom of the support column structure (17) is rotatably connected to a rotating base through a bearing, the upper part of the support column structure (17) passes through the side wall of the bottom frame, a transmission sleeve (18) is slidably arranged on the outer side of the upper part of the support column structure (17) and between the bottom frame, The upper end of the transmission sleeve (18) is connected to a supporting bottom plate (21), and two symmetrically arranged third hydraulic cylinders (11) are respectively arranged on both sides of the bottom frame. The outer side of the output end of the third hydraulic cylinder (11) is connected to a connecting sleeve (13) by bolts, and the upper end of the connecting sleeve (13) is connected to a lifting plate (12). Installation spaces are arranged on the inner sides of both ends of the main frame (1), and the ends of the installation spaces are provided with mounting plates (6) by bolts. The inner side wall of the mounting plate (6) is connected to a mounting frame (10), and a second hydraulic cylinder (9) is fixedly arranged on the mounting frame (10) by a bracket. The output end of the second hydraulic cylinder (9) is connected to a push plate (5) by bolts, and the push plate (5) is connected to two symmetrically arranged guide rods (8) by bolts. A guide sleeve (7) is slidably arranged on the outer side of the guide rod (8), and the guide sleeve (7) is connected to the mounting plate (6) by bolts. The output ends of the guide rod (8) and the second hydraulic cylinder (9) both pass through the side wall of the main frame (1).

2. A pre-pressing machine pressing mechanism according to claim 1, characterized in that: Two coaxially arranged support rings (19) are arranged at the upper end of the bottom frame, and the two support rings (19) have different radii.

3. A pre-pressing machine pressing mechanism according to claim 2, characterized in that: A slide groove (20) matching with the support ring (19) is slidably arranged on the outer side of the top of the support ring (19); the slide groove (20) is an annular groove structure; the slide groove (20) is fixedly arranged on the lower end surface of the support base plate (21); and the outer diameter of the slide groove (20) is smaller than the width of the support base plate (21).

4. The pre-pressing mechanism according to claim 1, characterized in that: The widths of the lifting plate (12) and the supporting bottom plate (21) are the same as the width of the main frame (1), and there is a gap between the bottom and the upper edge of the side wall of the lower part of the main frame (1).

5. A pre-pressing machine pressing mechanism according to claim 4, characterized in that: When the lifting plate (12) is at the lowest point, the lower end surface contacts the upper edge of the side wall of the lower portion of the main frame (1), and the height of the upper end surface of the lifting plate (12) is lower than the height of the lower end surface of the supporting bottom plate (21).

6. The pre-pressing mechanism according to claim 1, characterized in that: Under normal conditions, the push plate (5) is in contact with the inner wall of the main frame (1) and the movement tracks of the pressure plate (4) in the vertical direction do not overlap.

7. The pre-pressing mechanism according to claim 1, characterized in that: The hydraulic mechanism (2) is respectively connected to the first hydraulic cylinder (3), the second hydraulic cylinder (9), and the third hydraulic cylinder (11) through hydraulic pipelines.

8. The pre-pressing mechanism according to claim 1, characterized in that: The lower outer side of the support column structure (17) is fixedly connected to the driven sprocket (16), a rotating base is provided on the outer side of the bottom of the support column structure (17), a ball bearing is provided between the rotating base and the bottom of the support column structure (17), and a thrust bearing is provided between the end face of the driven sprocket (16) and the rotating base.

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