A downward pressure plate strip clamping method

Abstract

The present invention provides a downward pressure plate and strip clamping method, the core of which is to first arrange a plurality of horizontally spaced roller groups on a frame and place the plate and strip on the rollers; then arrange the rotating rollers horizontally spaced on the roller frame to align the rotating rollers with the rollers; then, the lifting unit is hinged to both ends of the roller frame, and the distance between the rotating rollers and the rollers is controlled by controlling the lifting of the roller frame, thereby quickly adapting to the thickness of plates and strips of different thicknesses, realizing the clamping of plates and strips of various thicknesses, saving the time of manually adjusting the position of the rotating rollers due to changes in plate thickness, and greatly improving the clamping efficiency of the plate and strip.

Description

Technical Field

[0001] The invention relates to the field of metal surface treatment, and in particular to a downward-pressing plate strip clamping method that automatically adapts to plate thickness. Background Art

[0002] During the production or processing of plates, they often need to be clamped and transported from one end to the other. The earliest solution was to clamp the plate with a clamp and drag it directly to the other end. However, this method can easily cause the plate to deform, and if the plate is in a high temperature state, it can easily cause personal injury to the operator. Therefore, plate clamping equipment was developed.

[0003] like Figure 9-10 As shown, the plate clamping and conveying equipment mainly squeezes and clamps the plate by two fixed rollers and two rotating rollers that slide up and down. The existing technical solution is to set the fixed rollers and the rotating rollers that slide up and down at diagonal angles to achieve independent control of the two rotating rollers that slide up and down. However, in this solution, since the distance between the two fixed rollers in the up and down directions remains unchanged, when the thickness of the plate exceeds the distance between the two fixed rollers in the up and down directions, the rotating rollers continue to clamp the plate, which will easily cause the plate to deform, and the quality of the plate during the clamping process cannot be guaranteed.

[0004] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research. The technical solution to be introduced below is produced in this context. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide a downward pressure plate and strip clamping method: first, a plurality of horizontally spaced roller groups are arranged on the frame, and the plate and strip are placed on the rollers; then, the rotating rollers are arranged horizontally on the roller frame so that the rotating rollers are aligned with the rollers; then, the lifting unit is hinged to both ends of the roller frame, and the distance between the rotating rollers and the rollers is controlled by controlling the lifting and lowering of the roller frame, so as to quickly adapt to the thickness of plates and strips of different thicknesses, realize the clamping of plates and strips of various thicknesses, and greatly improve the clamping efficiency of the plates and strips.

[0006] The technical solution of the present invention is achieved as follows:

[0007] A downward pressure plate strip clamping method includes the following steps:

[0008] S1: Pre-installed rack; the rack is configured as a support;

[0009] S2: Pre-set rotating roller; the rotating roller is a rotating body component;

[0010] S3: pre-installed supporting unit; the supporting unit includes at least two rollers arranged in a left-right direction and installed on the frame at intervals;

[0011] S4: Pre-installing a first lifting unit; the first lifting unit includes a first upper beam fixedly mounted on the frame, a first lifting device fixedly connected below the first upper beam, and the first lifting device is configured to lift and lower in the vertical direction by self-extension;

[0012] S5: Pre-installed roller frame; the roller frame is configured as a mounting support for the rotating roller, and at least two rotating rollers are installed on the roller frame in the left and right directions and at horizontal intervals;

[0013] S6: Pre-installing a second lifting unit; the second lifting unit includes a second upper beam fixedly mounted on the frame, a second lifting device hingedly connected below the second upper beam, the second lifting device configured to lift and lower in the vertical direction by self-extension and to rotate in the left and right direction relative to the second upper beam;

[0014] S7: Install the roller frame; arrange the roller frame horizontally, and hinge the lower ends of the first lifting device and the second lifting device to the left and right ends of the roller frame respectively, so that the rotating rollers on the roller frame are on the same horizontal line, and the rotating rollers are aligned with the rollers on the supporting unit in the vertical direction;

[0015] S8: clamping the plate strip; first, the left and right ends of the roller frame are synchronously raised by the first lifting device and the second lifting device, and the plate strip is placed horizontally on the rollers; then the left and right ends of the roller frame are synchronously lowered by the first lifting device and the second lifting device until the rotating rollers on the roller frame contact the upper surface of the plate strip, and the rollers and the rotating rollers clamp the plate strip; when the plate strip is subjected to left and right pulling forces, the plate strip is conveyed in the left and right directions under the action of the pulling forces and the clamping of the rollers and the rotating rollers.

[0016] Preferably, a hinged beam is fixedly connected below the first lifting device, and the left end of the roller frame is hinged to the front and rear sides of the hinged beam. The hinged beam serves as a transition piece, so that the left end of the roller frame and the lower end of the first lifting device can be hinged and rotated through the hinged beam.

[0017] Preferably, the first upper crossbeam is provided with a guide slide bar which is symmetrical along the front-to-back direction and fixed on the hinged beam, and the guide slide bar passes through the first upper crossbeam; in step S8, when the first lifting device is lifted or lowered, the guide slide bar only slides up and down relative to the first upper crossbeam, and cleverly limits the roller frame from swinging in the front-to-back direction through the extrusion limit between the guide slide bar and the first upper crossbeam, thereby playing a guiding and limiting role for the first lifting unit.

[0018] Preferably, the first upper crossbeam is also provided with a first adjusting device which is symmetrical along the front-to-back direction and fixed on the hinged beam. The first adjusting device adjusts the horizontality of the left end of the roller frame by means of nut thread cooperation. After the adjustment, the first adjusting device and the left end of the roller frame remain relatively fixed in the up and down directions, cleverly preventing the problem of the rotating roller position deviating from the horizontal line due to insufficient levelness of the left end of the roller frame.

[0019] Preferably, the first adjusting device includes a left threaded rod and a left adjusting nut, and the front and rear sides of the hinged beam are fixedly connected with connecting plates with slots. The lower end of the left threaded rod passes through the slot and is locked on the hinged beam by two left adjusting nuts located above and below the connecting plate; by rotating the position of the left adjusting nut on the left threaded rod, which is equivalent to squeezing between the right adjusting nut and the connecting plate, the horizontality of the left end of the roller frame can be adjusted, thereby cleverly preventing the left end of the roller frame from tilting.

[0020] Preferably, in step S6, a second adjusting device symmetrically arranged along the front-to-back direction is hingedly connected below the second upper crossbeam, so that the second adjusting device can rotate in the left-right direction relative to the second upper crossbeam; the second adjusting device adjusts the horizontality of the right end of the roller frame by means of nut thread cooperation, and after adjustment, the second adjusting device and the right end of the roller frame remain relatively fixed in the up-down direction, cleverly preventing the problem of the rotating roller position deviating from the horizontal line due to insufficient levelness of the right end of the roller frame.

[0021] Preferably, an ear plate is provided at the right end of the roller frame, and a slot is provided on the ear plate; the slot is a waist-shaped hole, and the second adjusting device includes a right threaded rod and a right adjusting nut. The lower end of the right threaded rod passes through the slot on the roller frame, and the position of the right adjusting nut at the lower end of the right threaded rod is adjusted by rotating, which is equivalent to the squeezing between the right adjusting nut and the ear plate, so that the horizontality of the right end of the roller frame can be adjusted, thereby cleverly preventing the right end of the roller frame from tilting.

[0022] Preferably, in step S8, when the first lifting device and the second lifting device rise or fall synchronously, the left end of the roller frame rotates relative to the first lifting device, and the second lifting device and the second adjusting device rotate in the left and right directions relative to the second upper beam, thereby compensating for the height asynchrony between the first lifting device and the second lifting device by using an articulated method, and preventing the first lifting device and the second lifting device from getting stuck during the lifting process.

[0023] Preferably, the first lifting device and the second lifting device are cylinders, thereby achieving rapid and synchronous lifting of the left and right ends of the roller frame.

[0024] Preferably, the roller frame includes two vertical plates arranged along the front-to-back direction, and the vertical plates are provided with mounting holes for installing rotating rollers; the left end of the roller frame is provided with a left hinged member hinged to the first lifting device; the right end of the roller frame is provided with a right hinged member hinged to the second lifting device, thereby providing a hinge point for the roller frame hinge.

[0025] Preferably, the left hinge of the roller frame includes hanging plates symmetrical in the front-to-back direction, with a connecting shaft provided between the hanging plates. The connecting shaft is inserted between the vertical plates and the hanging plates, so that the hanging plates and the vertical plates are kept fixed and the structural strength of the left end of the roller frame is increased; a distance of 10-20 cm is left between the hanging plates and the adjacent vertical plates, providing sufficient space for the hinge of the left end of the roller frame; the hanging plates are provided with a left hinge hole hinged to the lower end of the first lifting device;

[0026] The right hinge of the roller frame includes a reinforcing beam fixedly connected between the vertical plates. The reinforcing beam provides a hinge point at the right end of the roller frame while also increasing the structural strength of the right end of the roller frame. A vertical plate is provided at the upper end of the reinforcing beam, and a right hinge hole is provided on the vertical plate to be hinged to the lower end of the second lifting device.

[0027] The principles and beneficial effects of the present invention using the above technical solution are:

[0028] The present invention provides a downward pressure plate and strip clamping method, which first arranges a plurality of horizontally spaced roller groups on a frame to place the plate and strip on the rollers; then arranges rotating rollers horizontally at intervals on the roller frame to align the rotating rollers with the rollers; then hinges the lifting unit with both ends of the roller frame, and controls the distance between the rotating rollers and the rollers by controlling the lifting of the roller frame; when the thickness of the plate and strip changes, the rotating rollers are driven to rise and fall by the lifting of the roller frame, and the rotating rollers and the rollers clamp the plate and strip for transmission, thereby realizing rapid adaptation and clamping of different plate thicknesses, saving time for manually adjusting the position of the rotating rollers due to changes in plate thickness, and improving the clamping efficiency of the plate and strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an enlarged schematic diagram of the hinged left and right ends of the roller frame;

[0030] Figure 2 It is an enlarged schematic diagram of the hinged beam and the second lifting unit;

[0031] Figure 3 Schematic diagram of the structure of the first lifting unit;

[0032] Figure 4 is a structural sectional view of the first lifting unit;

[0033] Figure 5 It is a structural cross-sectional view of the guide mechanism at the first lifting unit;

[0034] Figure 6 It is a structural diagram of the roller frame;

[0035] Figure 7 It is an enlarged schematic diagram of the roller and the independent lifting unit;

[0036] Figure 8 This is a schematic diagram of the middle plate strip being brushed;

[0037] Figure 9 A schematic diagram of the prior art for individually controlling the lifting and lowering of rotating rollers;

[0038] Figure 10 This is a schematic diagram of the deformation of a thick strip under the clamping of an existing strip grinding and brushing mechanism;

[0039] Figure 11 This is the structural principle diagram of the synchronous lifting of the roller stand under ideal conditions;

[0040] Figure 12 This is the structural principle diagram of the synchronous lifting of the roller frame under actual conditions;

[0041] Figure 13 The exploded diagram of the roller frame structure;

[0042] Figure 14 A schematic block diagram of the steps of the present invention;

[0043] The figures are marked as follows: 1-frame, 2-first upper beam, 3-first lifting device, 4-shield, 5-left threaded rod, 6-roller frame, 7-hinge beam, 8-rotating roller, 9-right threaded rod, 10-right adjusting nut, 11-vertical plate, 12-inverted U-shaped plate, 13-pin shaft, 14-cover plate, 15-sheath, 16-left adjusting nut, 17-second lifting device, 18-short pin, 19-support, 20-lifting mounting seat, 21-fixed pin, 22-pull rod, 23-guide slide bar, 24-second upper beam, 25-roller seat, 26-brush roller, 27-locking nut, 28-roller, 29-hinge shaft, 3 0-end cover, 31-connecting plate, 101-crossbeam, 102-longitudinal beam, 103-supporting beam, 104-bearing seat, 301-first piston rod, 302-hexagonal nut, 601-hanging plate, 602-connecting shaft, 603-ear plate, 604-reinforcement beam, 605-vertical plate, 606-reinforcement shaft, 607-slot hole, 608-mounting hole, 609-left hinge hole, 610-flange base, 611-flange screw hole, 612-accommodation cavity, 613-connecting screw hole, 801-flange cover, 802-through hole, 1101-right hinge hole, 1701-second piston rod, a-rotation trajectory, s-plate strip. Implementation Method

[0044] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0046] In the description of the present invention, the term "at least one" refers to one or more than one, unless otherwise clearly defined. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] The specific implementation of the present invention is as follows: Figure 1-13 As shown, this embodiment provides a downward pressure plate strip clamping method, comprising:

[0048] S1: Pre-installing a rack 1; the rack 1 is configured as a support member; the rack 1 includes a set of bottom cross beams 101 spaced apart in the front-to-back direction, and at least one set of longitudinal beams 102 spaced apart in the left-to-right direction are provided on the bottom cross beams 101; the cross beams 101 and the longitudinal beams 102 are connected together by screws or welding to ensure the structural strength of the rack 1 as a support member;

[0049] S2: Pre-installed rotating roller 8; the rotating roller 8 is a rotating body component, for example, the rotating roller 8 can be a cylinder; so as to better pinch and feed the plate belt s through circumferential rotation;

[0050] S3: Pre-installing a supporting unit; the supporting unit includes at least two rollers 28 arranged at intervals along the left-right direction and installed on the frame 1; the rollers 28 are fixedly installed on the frame 1 through supporting beams 103, and the supporting beams 103 are installed between each set of longitudinal beams 102 along the left-right direction; and bearing blocks 104 are fixedly installed above the supporting beams 103, and the rollers 28 are installed between the bearing blocks 104. The rollers 28 are fixed in the axial direction relative to the bearing blocks 104 and can rotate freely in the circumferential direction;

[0051] S4: Pre-install the first lifting unit; the first lifting unit includes a first upper beam 2 fixedly mounted on the frame 1. Specifically, the first upper beam 2 is fixedly mounted between each set of longitudinal beams 102 along the left-right direction;

[0052] A first lifting device 3 is fixedly connected to the bottom of the first upper beam 2. The first lifting device 3 is configured to lift and lower in the up and down directions by its own telescopic method. The first lifting device 3 can usually be configured as a cylinder, and the piston rod in the cylinder provides power for the lifting and lowering of the left end of the roller frame 6.

[0053] like Figure 1-5As shown, a hinged beam 7 is fixedly connected to the bottom of the first lifting device 3. The hinged beam 7 is the carrier for the hinged connection between the roller frame 6 and the first lifting device 3. The connection between the two is realized in the following way: the first lifting device 3 includes a retractable first piston rod 301, a threaded section is provided below the first piston rod 301, a pull rod 22 is provided below the first piston rod 301, and a threaded hole is provided on the top of the pull rod 22. The threaded belt is screwed into the threaded hole and then the first piston rod 301 is connected to the pull rod 22 through the hexagonal nut 302. together; the lower end of the pull rod 22 passes through the interior of the hinged beam 7, and the outer wall of the lower end of the pull rod 22 is fixedly connected with a fixing pin 21 perpendicular to the length direction of the pull rod 22, and an avoidance notch is provided on the hinged beam 7. The fixing pin 21 passes through the avoidance notch on the pull rod 22 and the hinged beam 7 to connect the pull rod 22 and the hinged beam 7 together; in order to prevent the fixing pin 21 from moving in the axial direction, a cover plate 14 is threadedly connected to the avoidance notch on the hinged beam 7 to resist the fixing pin 21, so as to prevent the fixing pin 21 from axially falling out of the hinged beam 7.

[0054] like Figure 3-5 As shown, the first upper crossbeam 2 is provided with a guide slide 23 symmetrically fixed to the hinge beam 7 along the front-to-back direction, and a fixing pin 21 perpendicular to the length direction of the guide slide 23 is fixedly connected to the outer wall of the lower end of the guide slide 23. The fixing pin 21 passes through the guide slide 23 and the inside of the hinge beam 7 to connect the guide slide 23 and the hinge beam 7 together; similarly, in order to prevent the fixing pin 21 from moving in the axial direction, a cover plate 14 is threadedly connected to the avoidance notch on the hinge beam 7 to press against the fixing pin 21, so as to prevent the fixing pin 21 from axially falling out of the hinge beam 7;

[0055] The upper end of the guide slide bar 23 passes through the first upper crossbeam 2; when the first lifting device 3 drives the hinged beam 7 to rise and fall, the guide slide bar 23 only slides up and down relative to the first upper crossbeam 2, and the roller frame 6 is restricted from swinging in the front and rear directions through the extrusion limit between the guide slide bar 23 and the first upper crossbeam 2, thereby playing a guiding and limiting role for the first lifting unit.

[0056] like Figure 3-5As shown, the first upper cross beam 2 is also provided with a first adjusting device which is symmetrical along the front-to-back direction and fixed on the hinged beam 7. The first adjusting device is spaced apart from the guide slide bar 23. Specifically, the front and rear sides of the hinged beam 7 are fixedly connected with a connecting plate 31 with a slot. The connecting plate 31 is welded to the hinged beam 7 through a rib plate; the first adjusting device includes a left threaded rod 5 and a left adjusting nut 16. The lower end of the left threaded rod 5 passes through the slot. The slot width is greater than the diameter of the left threaded rod 5 to ensure that the left threaded rod 5 has sufficient installation space in the slot; the left adjusting nut 16 is locked by two left adjusting nuts 16 located above and below the connecting plate 31. Tightly on the hinged beam 7; when the first lifting device 3 stops lifting, by rotating the position of the left adjusting nut 16 on the left threaded rod 5, the left adjusting nut 16 squeezes the hinged beam 7, and transmits the squeezing force to the roller frame 6, so that the roller frame 6 remains horizontal after it is in place, and the horizontality of the left end of the roller frame 6 can be adjusted; this also keeps the rotating roller 8 horizontal, and after the adjustment, the left threaded rod 5 is locked on the hinged beam 7 again by the two left adjusting nuts 16, so that the left threaded rod 5 and the left end of the roller frame 6 remain relatively fixed in the up and down directions, preventing the roller frame 6 from jumping in the up and down directions when the rotating roller 8 is subjected to force in the clamping strip s.

[0057] S5: Pre-set roller stand 6; Figure 6 、 13 As shown, the roller frame 6 is configured as a mounting support for the rotating roller 8, and at least two rotating rollers 8 are mounted on the roller frame 6 along the left-right direction and at horizontal intervals; specifically, the roller frame 6 includes two vertical plates 605 arranged along the front-to-back direction, and the vertical plates 605 are provided with mounting holes 608 for mounting the rotating rollers 8; an accommodating cavity 612 is formed between the vertical plates 605 in the front-to-back direction, and the rotating rollers 8 are correspondingly arranged in the accommodating cavity 612.

[0058] Furthermore, the left end of the roller frame 6 is provided with a left hinged part hinged to the first lifting device 3; the left hinged part includes hanging plates 601 symmetrical along the front-to-back direction, and a connecting shaft 602 is provided between the hanging plates 601, and the connecting shaft 602 is inserted between the vertical plate 605 and the hanging plate 601 to keep the hanging plate 601 and the vertical plate 605 fixed; the connecting shaft 602 not only fixes the hanging plate 601 and the vertical plate 605, but also increases the structural strength between the vertical plates 605; since the left hinge hole 609 is a connecting hole and is subjected to a large tensile force, the connecting shaft 602 is spaced apart from the left hinge hole 609, which can also improve the tensile strength at the left hinge hole 609 and avoid deformation or fracture of the outer side of the left hinge hole 609 due to excessive tensile force.

[0059] Furthermore, a left hinge hole 609 is provided on the hanging plate 601, which is hinged to the lower end of the first lifting device 3; a distance of 10-20 cm is left between the hanging plate 601 and the adjacent vertical plate 605; such a design ensures that when the rotating roller 8 is installed on the vertical plate 605, there is enough space between the left hinge hole 609 at the left end of the roller frame 6 to be hinged to the hinge beam 7, and it is not easy to have crowded component layout, coordination interference, etc.

[0060] Furthermore, a right hinged part is provided at the right end of the roller frame 6, which is hinged to the second lifting device 17. The right hinged part of the roller frame 6 includes a reinforcing beam 604 fixedly connected between the vertical plates 605. The reinforcing beam 604 provides a hinged position at the right end of the roller frame 6 while also increasing the structural strength between the vertical plates 605 at the right end of the roller frame 6.

[0061] Furthermore, a vertical plate 11 is provided at the middle position of the upper end of the reinforcing beam 604, and the fixing method between the vertical plate 11 and the reinforcing beam 604 is achieved as follows: a flat plate 614 is provided at the upper end of the reinforcing beam 604 to be fixed to the reinforcing beam 604, the flat plate 614 is directly welded to the reinforcing beam 604, and a connecting screw hole 613 is provided on the flat plate 614. The vertical plate 11 is welded to a horizontal plate, and a rib is welded on the flat plate to maintain the stability of the horizontal plate and the vertical plate 11. The horizontal plate is connected to the connecting screw hole 613 of the flat plate 614 by screws, so that the vertical plate 11 remains fixed with the reinforcing beam 604; a right hinge hole 1101 hinged to the lower end of the second lifting device 17 is provided on the vertical plate 11, and the central axis of the right hinge hole 1101 extends in the front-to-back direction. That is to say, after the right end of the roller frame 6 is hinged, it forms a stable triangular suspension with the two symmetrical left hinge holes 609. At the same time, since the central axis of the right hinge hole 1101 extends in the front-to-back direction, the roller frame 6 can only swing in the left and right directions, and the movement trend in the front-to-back direction will be blocked, thereby preventing the roller frame 6 from swinging arbitrarily in all directions.

[0062] like Figure 13 As shown, a rotating roller 8 is also installed in the mounting hole 608 at the middle position of each group of vertical plates 605. If the structural strength between each group of vertical plates is increased only by relying on the reinforcing beam 604 and the connecting shaft 602, the middle part of the vertical plate 605 will be easily deformed or even cracked due to the excessive tension at both ends of the roller frame 6. In severe cases, the rotating roller 8 will fall off from the mounting hole 608. Therefore, a reinforcing shaft 606 is provided in the accommodating cavity 612 formed by each group of vertical plates 605 along the left and right directions and spaced from the mounting hole 608. The reinforcing shaft 606 is fixedly connected between each group of vertical plates 605. While improving the structural strength of the mounting position of the rotating roller 8, it also reinforces and stabilizes the entire roller frame 6.

[0063] like Figure 13As shown, the rotating roller 8 is fixed in the mounting hole 608 of the vertical plate 605 as follows: the two ends of the rotating roller 8 are connected with flange covers 801 fixed axially relative to the rotating roller 8, and the center of the flange cover 801 extends along the axial direction to form a cylindrical support portion. The rotating roller 8 and the cylindrical support portion are interlaced together and can rotate circumferentially around the cylindrical support portion; the flange cover 801 not only supports the rotating roller 8 in rotation, but also serves as a transition piece to keep the rotating roller 8 and the vertical plate 605 fixed. That is, the flange cover 801 is installed on the vertical plate 605, that is, through the flange cover 801. 01 is provided with through holes 802 arranged at intervals along the circumferential direction, and a flange base 610 is fixedly mounted on the vertical plate 605 outside the mounting hole 608 of the vertical plate 605 and is concentric with the mounting hole 608. The flange base 610 is the mounting seat of the flange cover 801, and the flange base 610 is usually welded to the mounting hole 608; the flange base 610 is provided with flange screw holes 611 arranged at intervals along the circumferential direction, and threaded fasteners are passed through the through holes 802 and screwed into the flange screw holes 611 to connect the flange cover 801 and the vertical plate 605 together.

[0064] S6: Pre-install the second lifting unit; the second lifting unit includes a second upper beam 24 fixedly mounted on the frame 1, a lifting mounting seat 20 fixedly mounted below the second upper beam 24, a second lifting device 17 mounted below the lifting mounting seat 20, the second lifting device 17 and the lifting mounting seat 20 are hinged together by a short pin 18, so that the second lifting device 17 can rotate relative to the lifting mounting seat 20 in the left and right directions; the second lifting device 17 is configured to lift and lower in the up and down directions by its own telescopic manner, and the second lifting device 17 can usually be configured as a cylinder to provide power for the lifting and lowering of the right end of the roller frame 6.

[0065] like Figure 3-5 As shown, the second lifting device 17 includes a retractable second piston rod 1701, and the second piston rod 1701 is fixedly connected to an inverted U-shaped plate 12 by a locking nut 27 at the bottom. The inverted U-shaped plate 12 is formed with an inverted U-shaped groove, which can accommodate the vertical plate 11. That is to say, the inverted U-shaped plate 12 provides an articulated carrier for the second piston rod 1701 and the vertical plate 11 at the right end of the roller frame 6. When the second lifting device 17 is lifted and lowered by the extension and retraction of the second piston rod 1701, the second piston rod 1701 also drives the right end of the roller frame 6 to lift and lower synchronously through the inverted U-shaped plate 12.

[0066] like Figure 3-5As shown, the right end of the roller frame 6 is provided with an ear plate 603 symmetrical along the front-back direction, the ear plate 603 is welded to the vertical plate 605 through a rib plate, and a slot 607 is provided on the ear plate 603; the slot 607 is a waist-shaped hole; a support 19 symmetrical along the front-back direction is fixedly connected below the second upper crossbeam 24, and a second adjustment device hinged by a short pin 18 is provided below the support 19, so that the second adjustment device can rotate in the left and right directions relative to the second upper crossbeam 24; the second adjustment device includes a right threaded rod 9 and a right adjustment rod Nut 10, the right adjusting nut 10 is located at the lower end of the right threaded rod 9; the lower end of the right threaded rod 9 passes through the slot 607 on the roller frame 6. After the roller frame 6 stops lifting, the position of the right adjusting nut 10 at the lower end of the right threaded rod 9 is adjusted by rotating, that is, the ear plate 603 is squeezed by the right adjusting nut 10 to change the horizontality of the right end of the roller frame 6, thereby keeping the rotating roller 8 horizontal, and after adjustment, the right adjusting nut 10 and the ear plate 603 are abutted to keep the right threaded rod 9 and the right end of the roller frame 6 relatively fixed in the up and down directions.

[0067] S7: Install the roller frame 6; Figure 1 As shown, the roller frame 6 is arranged horizontally, and the lower ends of the first lifting device 3 and the second lifting device 17 are hinged to the left and right ends of the roller frame 6, respectively. Specifically, the lower end of the first lifting device 3 and the left end of the roller frame 6 are hinged together as follows: a hinge shaft 29 is disposed within a left hinge hole 609 at the left end of the roller frame 6. An integrally formed end cap 30 is disposed at the outer end of the hinge shaft 29. The end cap 30 is fixed to the vertical plate 605 of the roller frame 6. The hinge shaft 29 is hinged to the front and rear sides of the hinge beam 7, supporting the left end of the roller frame 6 and enabling the left end of the roller frame 6 to rotate relative to the hinge beam 7.

[0068] At the right end of the roller frame 6, the lower end of the second lifting device 17 is hinged to the right end of the roller frame 6 as follows: a pin 13 is located in the right hinge hole 1101 on the vertical plate 11 at the right end of the roller frame 6. The pin 13 passes through the right hinge hole 1101 and hinges the inverted U-shaped plate 12 connected to the second piston rod 1701 together;

[0069] The articulated roller frame 6 remains horizontal, so that the rotating rollers 8 on the roller frame are on the same horizontal line. During the lifting and lowering process of the roller frame 6, the rotating rollers 8 and the supporting rollers 28 on the supporting unit always remain aligned up and down, so that the rotating rollers 8 and the supporting rollers 28 form a pinching unit.

[0070] S8: pinching the strip s; first, the left and right ends of the roller frame 6 are synchronously raised by the first lifting device 3 and the second lifting device 17, and the strip s is horizontally placed on the roller 28; then the left and right ends of the roller frame 6 are synchronously lowered by the first lifting device 3 and the second lifting device 17; Figure 11-12As shown, in an ideal state, the lifting speeds of the first lifting device 3 and the second lifting device 17 are the same, and the positions after lifting are also the same. That is to say, in an ideal state, the first lifting device 3 and the second lifting device 17 can be lifted and lowered simultaneously. However, in actual situations, due to installation errors and processing errors, the first lifting device 3 and the second lifting device 17 cannot be lifted and lowered absolutely synchronously. That is to say, there are always different heights between the first lifting device 3 and the second lifting device 17 due to different lifting speeds, and when the first lifting device 3 and the second lifting device 17 are both cylinders, the different heights will cause the first piston rod 301 and the second piston rod 1701 to generate a deflection angle, and drive the roller frame 6 to rotate along the rotation trajectory a, so that the two generate an extrusion force with the inner wall of the cylinder body, which will cause the first lifting device 3 and the second lifting device 17 to easily get stuck when performing synchronous lifting. Therefore, in this embodiment, the second lifting device 17 and the second upper crossbeam 24 are set to be hinged and rotated, so as to prevent the first lifting device 3 and the second lifting device 17 from getting stuck during the lifting process.

[0071] Specifically, if Figure 1-2 As shown, at the middle position of the right end of the roller frame 6, when the first lifting device 3 and the second lifting device 17 rise or fall synchronously, due to the asynchronous movement between the first lifting device 3 and the second lifting device 17, the left end of the roller frame 6 rotates relative to the first lifting device 3 during the lifting, thereby driving the right end of the roller frame 6 to deflect in the left and right directions; at the same time, the second lifting device 17 connected to the middle position of the right end of the roller frame 6 rotates in the left and right directions relative to the second upper crossbeam 24, which in turn causes the inverted U-shaped plate 12 hinged on the second lifting device 17 to articulate and rotate with the vertical plate 11 above the right end of the roller frame 6;

[0072] At both sides of the right end of the roller frame 6, the right threaded rod 9 in the second adjusting device located on both sides of the right end of the roller frame 6 in the front-to-back direction is hinged to the lower end of the second upper crossbeam 24. When the second lifting device 17 starts to deflect, the right threaded rod 9 will also deflect and rotate in the slot 607. Since the slot 607 is a waist-shaped hole, the right threaded rod 9 has enough swinging space in the waist-shaped hole; that is, the second lifting device 17 and the second adjusting member prevent the first lifting device 3 and the second lifting device 17 from getting stuck during the lifting process from the middle position and both sides of the roller frame 6 respectively.

[0073] Furthermore, after the first lifting device 3 and the second lifting device 17 are lifted and lowered into place, the rotating roller 8 on the roller frame 6 contacts the upper surface of the strip s, and the clamping unit formed by the supporting roller 28 and the rotating roller 8 squeezes the strip s, and the supporting roller 28 and the rotating roller 8 clamp the strip s; when the strip s is subjected to tension in the left and right directions, the strip s is transmitted in the left and right directions under the tension and the clamping action of the supporting roller 28 and the rotating roller 8.

[0074] like Figure 7-8 As shown, when the clamping method is used in the metal plate grinding equipment, a rotatable brush roller 26 is provided below the middle position of the roller frame 6, and a rotating roller 8 installed on the roller frame 6 is also provided above the brush roller 26 to prevent the plate strip s from jumping upward when the brush roller 26 is brushing; on the right side of the roller frame 6, a mechanism for independently controlling the lifting of the rotating roller 8 is provided. The only difference between the independent lifting mechanism and the first lifting unit is that the independent lifting mechanism installs the rotating roller 8 on the roller seat 25, and then fixes the roller seat 25 below the hinged beam 7, and The rotating roller 8 is aligned with the supporting roller 28 below to make the conveying process of the strip s smoother; a rotatable brush roller 26 is also provided between the roller frame 6 and the separate lifting mechanism, and a supporting roller 28 is provided below to prevent the strip s from jumping downward when the brush roller 26 is brushing; two diagonally arranged brush rollers 26 constitute two upper and lower grinding devices. Through the clamping method in this embodiment, the strip s is conveyed while the brush rollers 26 are used to brush both sides of the strip s respectively, so that the grinding treatment effect on both sides of the strip s meets the use requirements.

[0075] like Figure 1-8 As shown, the pull rod 22 fixedly connected below the first lifting device 3 and the guide slide 23 spaced apart from the first lifting device 3 have exposed portions between the first upper crossbeam 2 and the hinged beam 7. The guide slide 23 also has exposed portions above the first upper crossbeam 2. To prevent dust and debris from entering, a sheath 15 is provided at the exposed portions between the pull rod 22, the guide slide 23 and the hinged beam 7. The sheath 15 is in the shape of a retractable bellows. When the pull rod 22 and the guide slide 23 are lifted or lowered, the sheath 15 is in close contact with the surfaces of the pull rod 22 and the guide slide 23, thereby ensuring the normal operation of the pull rod 22 and the guide slide 23.

[0076] The part of the guide slide 23 exposed above the first upper crossbeam 2 is provided with an inverted hollow shield 4. The shield 4 is a hollow cylinder that covers the exposed part. The lower end of the shield 4 has a radially extending ring, which is connected to the first upper crossbeam 2 through a threaded connection between the ring and the first upper crossbeam 2, so that the shield 4 is fixedly connected to the first upper crossbeam 2. It is worth noting that the length of the shield 4 is greater than the maximum length of the guide slide 23 exposed. This prevents dust while also preventing the guide slide 23 from colliding or interfering with the shield 4 when moving up and down.

[0077] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A downward pressure plate strip clamping method, characterized in that: The pinching method comprises the following steps: S1: a pre-installed rack (1); the rack (1) is configured as a support member; S2: a pre-set rotating roller (8); the rotating roller (8) is a rotating body component; S3: pre-installed supporting unit; the supporting unit includes at least two rollers (28) arranged at intervals along the left-right direction and installed on the frame (1); S4: pre-installing a first lifting unit; the first lifting unit comprises a first upper beam (2) fixedly mounted on the frame (1); a first lifting device (3) is fixedly connected below the first upper beam (2); the first lifting device (3) is configured to lift and lower in an up and down direction by self-extension; S5: pre-installing a roller frame (6); the roller frame (6) is configured as a mounting support for a rotating roller (8), and at least two rotating rollers (8) are mounted on the roller frame (6) in a horizontally spaced manner along a left-right direction; S6: pre-installing a second lifting unit; the second lifting unit comprises a second upper beam (24) fixedly mounted on the frame (1); a second lifting device (17) is hingedly connected below the second upper beam (24); the second lifting device (17) is configured to lift and lower in an up-and-down direction by self-extension, and can rotate in a left-and-right direction relative to the second upper beam (24); S7: Install the roller frame (6); arrange the roller frame (6) horizontally, and hinge the lower end of the first lifting device (3) and the lower end of the second lifting device (17) to the left and right ends of the roller frame (6) respectively, so that the rotating roller (8) on the roller frame is on the same horizontal line, and the rotating roller (8) is aligned with the roller (28) on the supporting unit in the upper and lower directions; S8: clamping the plate strip (s); first, the left and right ends of the roller frame (6) are synchronously raised by the first lifting device (3) and the second lifting device (17), and the plate strip (s) is placed horizontally on the roller (28); then, the left and right ends of the roller frame (6) are synchronously lowered by the first lifting device (3) and the second lifting device (17) until the rotating roller (8) on the roller frame (6) contacts the upper surface of the plate strip (s), and the roller (28) and the rotating roller (8) clamp the plate strip (s); when the plate strip (s) is subjected to tension in the left and right directions, the plate strip (s) is conveyed in the left and right directions under the tension and the clamping action of the roller (28) and the rotating roller (8).

2. A downward pressure strip clamping method according to claim 1, characterized in that: A hinged beam (7) is fixedly connected to the lower side of the first lifting device (3), and the left end of the roller frame (6) is hinged to the front and rear sides of the hinged beam (7), so that the left end of the roller frame (6) and the lower end of the first lifting device (3) can be hinged and rotated through the hinged beam (7).

3. A downward pressure strip clamping method according to claim 2, characterized in that: The first upper crossbeam (2) is provided with a guide slide bar (23) which is symmetrical along the front-to-back direction and fixed on the hinged beam (7), and the guide slide bar (23) passes through the first upper crossbeam (2); in step S8, when the first lifting device (3) is lifted or lowered, the guide slide bar (23) only slides up and down relative to the first upper crossbeam (2) and limits the roller frame (6) from swinging in the front-to-back direction, thereby playing a guiding and limiting role for the first lifting unit.

4. The downward pressure strip clamping method according to claim 2, characterized in that: The first upper crossbeam (2) is also provided with a first adjustment device that is symmetrical along the front-to-back direction and fixed to the hinged beam (7). The first adjustment device adjusts the horizontality of the left end of the roller frame (6) by means of nut thread engagement, and after adjustment, the first adjustment device and the left end of the roller frame (6) remain relatively fixed in the up-down direction.

5. The downward pressure strip clamping method according to claim 4, characterized in that: The first adjusting device includes a left threaded rod (5) and a left adjusting nut (16); the front and rear sides of the hinged beam (7) are fixedly connected with a connecting plate (31) with a slot; the lower end of the left threaded rod (5) passes through the slot and is locked on the hinged beam (7) by two left adjusting nuts (16) located above and below the connecting plate (31); by rotating the position of the left adjusting nut (16) on the left threaded rod (5), the horizontality of the left end of the roller frame (6) can be adjusted.

6. The downward pressure strip clamping method according to claim 1, characterized in that: In step S6, a second adjusting device symmetrically arranged along the front-to-back direction is hinged below the second upper crossbeam (24), so that the second adjusting device can rotate in the left-right direction relative to the second upper crossbeam (24); the second adjusting device adjusts the horizontality of the right end of the roller frame (6) by means of nut thread engagement, and after adjustment, the second adjusting device and the right end of the roller frame (6) remain relatively fixed in the up-down direction.

7. A downward pressure strip clamping method according to claim 6, characterized in that: The right end of the roller frame (6) is provided with an ear plate (603), and the ear plate (603) is provided with a slotted hole (607); the slotted hole (607) is a waist-shaped hole, and the second adjusting device includes a right adjusting screw (9) and a right adjusting nut (10), and the lower end of the right adjusting screw (9) passes through the slotted hole (607) on the roller frame (6). By rotating the position of the right adjusting nut (10) at the lower end of the right adjusting screw (9), the horizontality of the right end of the roller frame (6) can be adjusted.

8. The downward pressure strip clamping method according to claim 6, characterized in that: In step S8, when the first lifting device (3) and the second lifting device (17) are synchronously raised or lowered, the left end of the roller frame (6) rotates relative to the first lifting device (3), and the second lifting device (17) and the second adjustment device rotate in the left and right directions relative to the second upper crossbeam (24), so as to prevent the first lifting device (3) and the second lifting device (17) from getting stuck during the lifting process.

9. The downward pressure strip clamping method according to claim 1, characterized in that: The first lifting device (3) and the second lifting device (17) are cylinders.

10. The downward pressure plate strip clamping method according to claim 1, characterized in that: The roller frame (6) comprises two vertical plates (605) arranged in a front-to-back direction, and the vertical plates (605) are provided with mounting holes (608) for mounting the rotating roller (8); a left hinged member hinged to the first lifting device (3) is provided at the left end of the roller frame (6); and a right hinged member hinged to the second lifting device (17) is provided at the right end of the roller frame (6).

11. The downward pressure strip clamping method according to claim 10, characterized in that: The left hinged member of the roller frame (6) includes hanging plates (601) symmetrical in the front-back direction, a connecting shaft (602) is provided between the hanging plates (601), and the connecting shaft (602) is inserted between the vertical plate (605) and the hanging plate (601), so that the hanging plate (601) and the vertical plate (605) are kept fixed; a distance of 10-20 cm is left between the hanging plate (601) and the adjacent vertical plate (605); a left hinge hole (609) is provided on the hanging plate (601) for hinged connection with the lower end of the first lifting device (3); The right hinged member of the roller frame (6) comprises a reinforcing beam (604) fixedly connected between the vertical plates (605), a vertical plate (11) is provided at the middle position of the upper end of the reinforcing beam (604), and a right hinged hole (1101) hinged to the lower end of the second lifting device (17) is provided on the vertical plate (11).

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