Top pressing mechanism for pre-pressing machine

Abstract

The top pressing mechanism comprises a base and a pressing plate, the top of the base is fixedly provided with a machine base, the top of the machine base is fixedly provided with a hydraulic cylinder, the bottom end of a piston rod of the hydraulic cylinder penetrates through the top of the machine base and is fixedly provided with a stand column, and the edge of the top of the pressing plate is provided with a lower hinged support; the bottom end of a piston rod of the hydraulic cylinder is provided with a stand column, the top edge of the pressing plate is hinged to a supporting rod through a lower hinged support, and the top end of the supporting rod is hinged to an upper hinged support. The stand columns and the pressing plates are conveniently assembled through the supporting rods, the pressing plates of different sizes can be conveniently replaced, the requirement for pressing plywood of different sizes can be met, the application range is wide, when the size of the pressing plates is changed, the length of the supporting rods can be changed, meanwhile, the supporting rods can support the edges of the pressing plates, and compression deformation is avoided.

Description

Technical Field

[0001] This patent relates to the technical field of pre-pressing machines, specifically a top pressing mechanism for pre-pressing machines. Background Art

[0002] The pre-pressing machine is an auxiliary machine of the plywood production line. It is a mechanical device for preliminary bonding before gluing in order to shorten the hot pressing cycle and improve the quality of the board during the production process. The pre-pressing machine belongs to the pressure machine. The pre-pressing machine mainly performs a short-term cold pressing on the veneer after the glue coating and assembly to make it initially formed, and then sends it to the hot press for hot pressing and gluing.

[0003] The existing pre-pressing machine pressing mechanism consists of a hydraulic cylinder and a pressing plate. The pressing plate is usually fixed to the bottom end of the piston rod of the hydraulic cylinder and cannot be disassembled, so it can only press plywood of a single size and has a small scope of application. Therefore, we propose a top pressing mechanism for a pre-pressing machine. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of this patent is to provide a top pressing mechanism for a pre-pressing machine. This patent installs a column at the bottom end of the piston rod of the hydraulic cylinder, and a support rod is hinged at the top edge of the pressure plate through an upper hinge seat. The top end of the support rod is hinged to the side wall of the column through a lower hinge seat. The number of support rods can be multiple. The support rods facilitate the assembly of the column and the pressure plate, and facilitate the replacement of pressure plates of different sizes. It can meet the pressing requirements of plywood of different sizes, and has a wide range of applications. When the size of the pressure plate changes, the length of the support rod can also change. At the same time, the support rod can also support the edge of the pressure plate to avoid deformation due to pressure.

[0005] The technical solution adopted by this patent to solve its technical problems is: a top pressing mechanism for a pre-pressing machine, including a base and a pressing plate, a base is fixedly installed on the top of the base, a hydraulic cylinder is fixedly installed on the top of the base, the bottom end of the piston rod of the hydraulic cylinder passes through the top of the base and a column is fixedly installed, a lower hinge seat is installed at the top edge of the pressing plate, a support rod is hinged at the top edge of the pressing plate through the lower hinge seat, the top end of the support rod is hinged to an upper hinge seat, and the top end of the support rod is connected to the side wall of the column through the upper hinge seat;

[0006] The support rod includes a rod body, a fixing ring is integrally formed on the top end of the outer wall of the rod body, the outer wall of the fixing ring is provided with an annular groove, a circular ring is rotatably installed in the annular groove, a connecting ring is fixedly installed on the outer wall of the circular ring, an internal threaded ring is fixedly installed on the top end of the connecting ring, a screw is threadedly connected to the inner wall of the internal threaded ring, a limiting piece is provided at the bottom end of the screw, a connecting plate is integrally formed on the top end of the screw, a circular hole is provided in the middle of the connecting plate, the upper hinge seat includes a U-shaped seat, a bolt and a nut, the bolt passes through the U-shaped seat and the circular hole and is threadedly connected to the nut, and the U-shaped seat is fixedly installed on the side wall of the column.

[0007] Furthermore, the limiting member comprises a square block, the top of the rod body is provided with a square groove, the four sides of the side wall of the square block and the four sides of the inner wall of the square groove are relatively fitted and slid, and the bottom end of the screw is fixedly installed on the top of the square block.

[0008] Furthermore, the circular ring includes a first half ring and a second half ring, and two ends of the first half ring and the second half ring are relatively connected.

[0009] Furthermore, welding holes are provided at both the front and rear ends of the outer side wall of the connecting ring.

[0010] Furthermore, a mounting hole is provided in the middle of the pressure plate, a threaded groove is provided at the bottom end of the column, a fastening bolt is provided in the mounting hole, and the top end of the fastening bolt is screwed in the threaded groove.

[0011] Furthermore, the mounting hole is a T-shaped hole.

[0012] The beneficial effects of this patent are:

[0013] 1. This patent installs a column at the bottom end of the piston rod of the hydraulic cylinder, and a support rod is hinged at the top edge of the pressure plate through an upper hinge seat. The top end of the support rod is hinged to the side wall of the column through a lower hinge seat. The number of support rods can be multiple. The support rods facilitate the assembly of the column and the pressure plate, and are convenient for replacing pressure plates of different sizes. It can meet the pressing needs of plywood of different sizes, and has a wide range of applications. When the size of the pressure plate changes, the length of the support rod can also change. At the same time, the support rod can also support the edge of the pressure plate to avoid deformation due to pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the patent structure.

[0015] Figure 2 It is a schematic diagram of the support rod of this patent.

[0016] Figure 3 It is a circular diagram of this patent.

[0017] Explanation of the reference numerals: 1 base, 2 machine base, 3 hydraulic cylinder, 4 column, 5 pressure plate, 6 support rod, 7 rod body, 8 fixing ring, 9 annular groove, 10 circular ring, 11 connecting ring, 12 internal thread ring, 13 screw rod, 14 connecting plate, 15 U-shaped seat, 16 square block, 17 square groove, 18 first half ring, 19 second half ring, 20 welding hole, 21 mounting hole, 22 threaded groove, 23 fastening bolt. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with specific embodiments. It should be understood that 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 contents 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 , Figure 2 and Figure 3 This is a schematic diagram of the structure of the patent, a top pressing mechanism for a pre-pressing machine, including a base 1 and a pressing plate 5, a base 2 is fixedly installed on the top of the base 1, a hydraulic cylinder 3 is fixedly installed on the top of the base 2, the bottom end of the piston rod of the hydraulic cylinder 3 passes through the top of the base 2 and a column 4 is fixedly installed, a lower hinge seat is installed at the top edge of the pressing plate 5, a support rod 6 is hinged at the top edge of the pressing plate 5 through the lower hinge seat, the top end of the support rod 6 is hinged to the upper hinge seat, and the top end of the support rod 6 is connected to the side wall of the column 4 through the upper hinge seat;

[0020] The number of the supporting rods 6 can be 4-6.

[0021] The support rod 6 includes a rod body 7, a fixing ring 8 is integrally formed at the top of the outer wall of the rod body 7, an annular groove 9 is provided on the outer wall of the fixing ring 8, a circular ring 10 is rotatably installed in the annular groove 9, a connecting ring 11 is fixedly installed on the outer wall of the circular ring 10, an internal threaded ring 12 is fixedly installed on the top of the connecting ring 11, a screw 13 is screwed on the inner wall of the internal threaded ring 12, a limit piece is provided at the bottom end of the screw 13, a connecting plate 14 is integrally formed at the top of the screw 13, a circular hole is provided in the middle of the connecting plate 14, the upper hinge seat includes a U-shaped seat 15, bolts and nuts, the bolts pass through the U-shaped seat 15 and the circular hole and are screwed to the nuts, and the U-shaped seat 15 is fixedly installed on the side wall of the column 4.

[0022] The tops of the pressure plates 5 of different sizes are hinged with a plurality of support rods 6 through lower hinge seats.

[0023] Specifically, the limiting member includes a square block 16 , a square groove 17 is provided at the top of the rod body 7 , the four sides of the side wall of the square block 16 and the four sides of the inner wall of the square groove 17 are relatively fitted and slid, and the bottom end of the screw rod 13 is fixedly installed on the top of the square block 16 .

[0024] The limiting member is used to limit the moving track of the screw rod 13 so that the screw rod 13 can only move up and down relative to the rod body 7 .

[0025] Specifically, the circular ring 10 includes a first half ring 18 and a second half ring 19 , and two ends of the first half ring 18 and the second half ring 19 are opposite to each other.

[0026] By dividing the circular ring 10 into the first half ring 18 and the second half ring 19 , it is convenient to install the circular ring 10 in the annular groove 9 in the early stage.

[0027] Specifically, welding holes 20 are provided at both the front and rear ends of the outer side wall of the connecting ring 11 .

[0028] By providing two welding holes 20 , it is convenient to weld the first half ring 18 and the second half ring 19 to the connecting ring 11 by welding.

[0029] Specifically, a mounting hole 21 is provided in the middle of the pressing plate 5 , a threaded groove 22 is provided at the bottom end of the column 4 , a fastening bolt 23 is provided in the mounting hole 21 , and the top end of the fastening bolt 23 is screwed in the threaded groove 22 .

[0030] By providing the fastening bolts 23 to connect the pressing plate 5 and the column 4 again, the connection strength between the two can be increased.

[0031] Specifically, the mounting hole 21 is a T-shaped hole.

[0032] The provision of the T-shaped hole allows the fastening bolt 23 to be completely located in the T-shaped hole, thereby ensuring the flatness of the bottom of the pressing plate 5 .

[0033] Working principle: The support rod 6 facilitates the assembly of the column 4 and the pressure plate 5, and is convenient for replacing pressure plates 5 of different sizes, which can meet the pressing needs of plywood of different sizes. It has a wide range of applications, and when the size of the pressure plate 5 changes, the length of the support rod 6 can also change. At the same time, the support rod 6 can also support the edge of the pressure plate 5 to avoid deformation due to pressure.

[0034] When adjusting the length of the support rod 6 , the internal thread ring 12 can be rotated clockwise or counterclockwise. Due to the limiting effect of the limiting member, the screw rod 13 can only move up and down, thereby increasing or decreasing the length of the support rod 6 .

[0035] It should be noted that the equipment structure and drawings of this patent mainly describe the principles of this patent. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that technical personnel in this field understand the principles of the above patent, they can clearly know the details of its power mechanism, power supply system and control system.

[0036] This patent installs a column at the bottom end of the piston rod of the hydraulic cylinder, and a support rod is hinged at the top edge of the pressure plate through an upper hinge seat. The top end of the support rod is hinged to the side wall of the column through a lower hinge seat. The number of support rods can be multiple. The support rods are convenient for assembling the column and the pressure plate, and it is easy to replace pressure plates of different sizes. It can meet the pressing needs of plywood of different sizes. It has a wide range of applications. When the size of the pressure plate changes, the length of the support rod can also change. At the same time, the support rod can also support the edge of the pressure plate to avoid deformation due to pressure.

[0037] In the description of this patent, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixed installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to the specific circumstances.

[0038] Although the embodiments of the present patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present patent, and the scope of the present patent is defined by the appended claims and their equivalents.

Claims

1. A top pressing mechanism for a pre-pressing machine, characterized in that: It comprises a base (1) and a pressure plate (5), wherein a machine base (2) is fixedly mounted on the top of the base (1), a hydraulic cylinder (3) is fixedly mounted on the top of the machine base (2), the bottom end of the piston rod of the hydraulic cylinder (3) passes through the top of the machine base (2) and a column (4) is fixedly mounted thereon, a lower hinge seat is mounted on the top edge of the pressure plate (5), a support rod (6) is hingedly connected to the top edge of the pressure plate (5) via the lower hinge seat, the top end of the support rod (6) is hingedly connected to an upper hinge seat, and the top end of the support rod (6) is connected to the side wall of the column (4) via the upper hinge seat; The support rod (6) comprises a rod body (7), a fixing ring (8) is integrally formed at the top of the outer wall of the rod body (7), an annular groove (9) is provided on the outer wall of the fixing ring (8), a circular ring (10) is rotatably mounted in the circular groove (9), a connecting ring (11) is fixedly mounted on the outer wall of the circular ring (10), an internal threaded ring (12) is fixedly mounted on the top of the connecting ring (11), a screw rod (13) is screwed to the inner wall of the internal threaded ring (12), a stopper is provided at the bottom end of the screw rod (13), a connecting plate (14) is integrally formed at the top of the screw rod (13), a circular hole is provided in the middle of the connecting plate (14), the upper hinge seat comprises a U-shaped seat (15), a bolt and a nut, the bolt passes through the U-shaped seat (15) and the circular hole and is screwed to the nut, and the U-shaped seat (15) is fixedly mounted on the side wall of the column (4).

2. A top pressing mechanism for a pre-pressing machine according to claim 1, characterized in that: The limiting member comprises a square block (16), a square groove (17) is provided at the top of the rod body (7), four sides of the side wall of the square block (16) and four sides of the inner side wall of the square groove (17) are relatively fitted and slidable, and the bottom end of the screw rod (13) is fixedly mounted on the top of the square block (16).

3. A top pressing mechanism for a pre-pressing machine according to claim 1, characterized in that: The circular ring (10) comprises a first half ring (18) and a second half ring (19), wherein two ends of the first half ring (18) and the second half ring (19) are opposite to each other.

4. A top pressing mechanism for a pre-pressing machine according to claim 3, characterized in that: Welding holes (20) are provided at both the front and rear ends of the outer side wall of the connecting ring (11).

5. The top pressing mechanism for a pre-pressing machine according to claim 1, characterized in that: A mounting hole (21) is provided in the middle of the pressing plate (5), a threaded groove (22) is provided at the bottom end of the column (4), a fastening bolt (23) is provided in the mounting hole (21), and the top end of the fastening bolt (23) is screwed into the threaded groove (22).

6. A top pressing mechanism for a pre-pressing machine according to claim 5, characterized in that: The mounting hole (21) is a T-shaped hole.

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