Pressure plate expander

Abstract

The invention provides a pressure plate expander, which relates to an expander and comprises a winding drum for winding a material belt, pressure plates limited on two sides of the winding drum and an expander body for guiding and positioning the two groups of pressure plates, the expander body comprises a positioning table plate fixed on the machine table rack and two groups of expanding units which are detachably mounted on the positioning table plate and are respectively used for expanding and positioning the two groups of pressure plates; each group of expansion units comprises a group of expansion base plates detachably positioned on the positioning bedplate and a group of X-shaped guide clamping units mounted on the expansion base plates, and clamping openings in one ends of the X-shaped guide clamping units are driven and clamped by the clamping and pushing units, so that clamping openings in the other ends of the X-shaped guide clamping units are clamped and positioned on the two sides of a group of pressure plates; the width of a winding drum pressure plate can be more flexibly corrected during rotary material collection, meanwhile, better adaptability during use can be guaranteed, better adaptability adjustment can still be conducted after long-time use, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to an expander, in particular to a pressure plate expander. Background Art

[0002] Chips, also known as integrated circuits (ICs), are usually made of single-crystal silicon wafers. After the wafer is cut, it forms multiple small grains, namely IC chips. After the chip manufacturing is completed, multiple IC chips will be fixed on the material tape for subsequent processing operations; the protective tape on the material tape plays a role in protecting the IC chip to prevent damage during the transmission process; and when the machine needs to replace the material tape, it is usually rotated through a reel. However, as the number of times and time the reel is used increases, the side wall of the reel's pressure plate may deform, causing the material tape to get stuck during the operation process, or even causing the material tape to break; therefore, in this case, the reel needs to be replaced or repaired in time to avoid affecting production efficiency and product quality; therefore, it also greatly increases the cost of production and reduces production efficiency;

[0003] In order to solve the above technical problems, the prior art discloses an expander for expanding the pressure plate, such as a patented anti-stuck device for a material plate (publication number CN215625548U). However, when it is used, since the size of the slot used to limit the pressure plate is certain, the pressure plate will inevitably have a thickness precision error during actual production. Once the gap between the pressure plate and the slot is too large, it is still difficult to achieve a good correction effect. In addition, the slot is more prone to wear when it abuts against the pressure plate. After long-term use, the gap will also increase. Therefore, the use effect is poor. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a pressure plate expander, which can realize more flexible correction of the width of the reel pressure plate when rotating to collect materials, so that the material strip can be appropriately collected in the reel pressure plate, reducing the damage caused by material jamming, and at the same time ensuring better adaptability during use. After long-term use, better adaptability adjustment can still be performed to increase the service life.

[0005] The present invention provides the following technical solutions:

[0006] A pressure plate expander, comprising a reel for winding a material strip, pressure plates limited on both sides of the reel, and an expander body for guiding and positioning two groups of pressure plates, the expander body comprising a positioning table fixed on a machine frame and two groups of expansion units detachably mounted on the positioning table and respectively used for expanding and positioning the two groups of pressure plates, each group of expansion units comprising a group of extension base plates detachably positioned on the positioning table plate and a group of X-shaped guide clamping units mounted on the expansion base plates, one end of the clamping opening of the X-shaped guide clamping unit is driven and clamped by a clamping and pushing unit, so that the clamping opening of the other end thereof is clamped and positioned on both sides of a group of pressure plates;

[0007] At this point, after the spacing between the two groups of pressure platens is determined, the X-shaped guide clamp unit of each group of expansion units can be positioned at the determined position of the positioning table along with the expansion unit, and then can also adapt to the width of the pressure plate to clamp on both sides of the pressure plate, so that the stable expansion of the spacing between the two groups of pressure platens can be achieved, and because the clamp opening of the X-shaped guide clamp unit can be driven and adjusted by the clamping and pushing unit, it can also better adapt to pressure platens of different thicknesses, and after the structure is worn out due to long-term use, it can still be adaptively adjusted more conveniently to increase the service life.

[0008] Preferably, the X-shaped guide clamp unit comprises a central axis mounted on the extended base plate through two sets of columns and two sets of articulated frames installed outside the central axis, the two sets of articulated frames are distributed on the central axis in an X-shape, one end of which is in engagement with and abuts against the two sides of the pressure plate, and the other end is provided with a guide rod, and the extended base plate is also provided with two sets of guide side plates, the inner sides of the two sets of guide side plates are provided with guide grooves centered on the central axis, and the two ends of the two sets of guide rods are guided and installed in the two sets of guide grooves, and they rotate along the guide grooves under the drive of the clamping and pushing unit to abut against the two sides of the pressure plate;

[0009] Thus, the X-shaped guiding clamp unit can achieve stable pressing operation under the drive of the clamping and pushing unit, and the structure is relatively simple and the operation is relatively convenient.

[0010] Preferably, at least one group of pressing roller units are respectively arranged at one end of the two groups of articulated frames pressing on both sides of the pressure plate, and the pressing roller units on the two groups of abutting frames are arranged opposite to each other in pairs, so as to improve the stability of the pressing.

[0011] Preferably, the pressure roller unit includes a hemispherical pressure cap fixed at the end of the hinged frame and a ball unit embedded in the pressure cap and rolling. When the ball unit is pressed against the side wall of the pressure plate, the pressure plate rotates with the reel, and the contact generated is rolling friction contact, which can greatly reduce the degree of wear and increase the service life.

[0012] Preferably, the clamping and pushing unit includes two groups of driving blocks slidingly connected between two groups of guide side plates, the two groups of driving blocks are reversely threadedly connected to the outside of a group of driving screws, and a group of driving plates are also positioned thereon. The two groups of driving plates move in reverse directions under the drive of the driving screws to clamp and drive the two groups of guide rods located between them, thereby realizing the clamping drive of the X-shaped guide clamping unit.

[0013] Preferably, the drive screw is mounted on the extension base plate and is driven to rotate by a drive motor, so as to achieve automated drive adjustment.

[0014] Preferably, a group of connection columns are provided at the bottom end of the extended base plate, and the connection columns are passed through slots provided on the positioning plate and are locked and fixed by locking nuts, thereby achieving detachable fixation of the position of the extended base plate.

[0015] Preferably, the extension base plate is slidably mounted on the positioning platen and is threadedly connected and passed through by an adjustment screw positioned on the positioning platen, one end of the adjustment screw being driven and connected by an adjustment motor, thereby achieving the purpose of automatic position adjustment.

[0016] Preferably, it also includes a combined frame coaxially distributed with the pressure plate, the combined frame including an inner ring and an outer ring that are concentric and fixedly connected by a connecting block, at least three groups of slide grooves are evenly distributed along the circumference of the outer ring, and each group of slide grooves is distributed along the radial extension, the machine frame is slidably installed in the slide grooves, and a group of threaded blocks are also arranged on the side away from the positioning table, the threaded blocks are internally threaded with a group of screw rods, and the screw rods are transfer-mounted on the inner ring, so each group of pressure plates can have at least three groups of expander units evenly arranged along the circumference, and the three groups of expander units can be assembled and installed on the combined frame through the machine frame, the connection mode of the combined frame by the inner ring and the outer ring will not affect the installation of the pressure plate and the reel, and the positioning of at least three groups of expander units can be achieved by positioning the combined frame, and the combined application of multiple groups of expander units also further improves the stability of structural expansion.

[0017] The beneficial effects of the present invention are as follows: a pressure plate expander provided by the present invention can realize more flexible correction of the width of the roll pressure plate when rotating to collect materials, so that the material strip can be appropriately collected in the roll pressure plate, reducing the damage caused by material jamming, and at the same time can also ensure better adaptability during use. After long-term use, better adaptive adjustment can still be performed to improve the service life; specifically, after the spacing between the two groups of pressure plates is determined, the X-shaped guide clamping unit of each group of expansion units can be positioned at a determined position of the positioning table with the expansion unit, and then can also adapt to the width of the pressure plate to clamp on both sides of the pressure plate, so that the stable expansion of the spacing between the two groups of pressure plates can be achieved, and because the clamping opening of the X-shaped guide clamping unit can be driven and adjusted by the clamping and pushing unit, it can also better adapt to pressure plates of different thicknesses, and the structure can still be more conveniently adaptively adjusted after wear and tear after long-term use to improve the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural cross-sectional view of the present invention when the pressure plate cooperates with a set of expander bodies;

[0020] Figure 2 yes Figure 1 A schematic diagram of the structure of a set of X-shaped guide clamp units cooperating with the central axis;

[0021] Figure 3 It is a schematic diagram of the structure of another set of X-shaped guide clamp units cooperating with the central axis;

[0022] Figure 4 It is a structural cross-sectional view of a group of expansion units after removing a group of guide side plates;

[0023] Figure 5 yes Figure 4 A schematic diagram of the structure of the expansion unit before the guide side plate is removed;

[0024] Figure 6 It is a structural schematic diagram of an extended base plate being slidably mounted on a positioning table;

[0025] Figure 7 is a side view of the modular rack;

[0026] Markings in the figure:

[0027] 1. Reel; 2. Pressure plate; 3. Machine stand; 4. Positioning table; 5. Extension base plate; 6. X-shaped guide clamp unit; 7. Clamp push unit; 8. Connecting column; 9. Locking nut; 10. Adjusting screw; 11. Adjusting motor; 12. Inner ring; 13. Outer ring; 14. Slide; 15. Threaded block; 16. Screw rod; 61. Column; 62. Center axis; 63. Articulated frame; 64. Guide rod; 65. Guide side plate; 66. Guide groove; 67. Hemispherical pressure cap; 68. Ball unit; 69. Drive block; 610. Drive screw; 611. Drive plate; 612. Drive motor. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figure 1-5 As shown, a pressure plate expander, in this embodiment, includes a reel 1 for winding a material strip, a pressure plate 2 limited on both sides of the reel 1, and an expander body for guiding and positioning two groups of pressure plates 2, the expander body includes a positioning table 4 fixed on a machine stand 3 and two groups of expansion units detachably mounted on the positioning table 4 and respectively used for expanding and positioning the two groups of pressure plates 2, each group of expansion units includes a group of extension base plates 5 detachably positioned on the positioning table 4 and a group of X-shaped guide clamping units 6 mounted on the expansion base plates, one end of the clamping opening of the X-shaped guide clamping unit 6 is driven and clamped by a clamping and pushing unit 7, so that the clamping opening of the other end thereof is clamped and positioned on both sides of a group of pressure plates 2;

[0030] At this point, after the spacing between the two groups of pressure plates 2 is determined, the X-shaped guide clamp unit 6 of each expansion unit can be positioned at the determined position of the positioning platen 4 along with the expansion unit, and can then adapt to the width of the pressure plate 2 to clamp on both sides of the pressure plate 2. At this point, a stable expansion of the spacing between the two groups of pressure plates 2 can be achieved, and because the clamp opening of the X-shaped guide clamp unit 6 can be driven and adjusted by the clamping and pushing unit 7, it can also better adapt to pressure plates 2 of different thicknesses, and even after the structure is worn out due to long-term use, it can still be adaptively adjusted more conveniently to increase its service life.

[0031] The X-shaped guide clamp unit 6 includes a group of central shafts 62 mounted on the extended base plate 5 through two groups of columns 61 and two groups of articulated frames 63 installed outside the central shaft 62. The two groups of articulated frames 63 are distributed on the central shaft 62 in an X-shaped cross, one end of which is in engagement with the two sides of the pressure plate 2, and the other end is provided with a guide rod 64. The extended base plate 5 is also provided with two groups of guide side plates 65. The inner sides of the two groups of guide side plates 65 are provided with guide grooves 66 centered on the central shaft 62. The two ends of the two groups of guide rods 64 are guided and installed in the two groups of guide grooves 66. Under the drive of the clamping and pushing unit 7, they rotate along the guide grooves 66 to press against the two sides of the pressure plate 2.

[0032] Thus, the X-shaped guiding clamp unit 6 can achieve stable pressing operation under the drive of the clamping and pushing unit 7, and the structure is relatively simple and the operation is relatively convenient.

[0033] At least one set of pressing roller units is disposed at each end of the two sets of articulated frames 63 pressing against both sides of the pressure plate 2, and the pressing roller units on the two sets of the abutting frames are disposed opposite to each other in pairs, so as to improve the stability of the pressing.

[0034] The pressing roller unit includes a hemispherical pressing cap 67 fixed at the end of the hinged frame 63 and a ball unit 68 embedded in the pressing cap and rolling. When the ball unit 68 is pressed against the side wall of the pressure plate 2, the pressure plate 2 rotates with the reel 1, and the contact generated is a rolling friction contact, which can greatly reduce the degree of wear and tear and increase the service life.

[0035] The clamping and pushing unit 7 includes two groups of driving blocks 69 slidingly connected between two groups of guide side plates 65. The two groups of driving blocks 69 are reversely threadedly connected to a group of driving screws 610, and each of them is also positioned with a group of driving plates 611. The two groups of driving plates 611 move in reverse directions under the drive of the driving screws 610 to clamp and drive the two groups of guide rods 64 located in the middle, thereby realizing the clamping drive of the X-shaped guide clamping unit 6.

[0036] The driving screw 610 is mounted on the extension base plate 5 and driven to rotate by a driving motor 612 to achieve automatic driving adjustment.

[0037] A group of connecting posts 8 are arranged at the bottom end of the extension base plate 5 . The connecting posts 8 pass through the slots provided on the positioning plate 4 and are locked and fixed by locking nuts 9 , so as to achieve detachable fixation of the position of the extension base plate 5 .

[0038] Example 2

[0039] like Figure 6 As shown, a pressure plate expander, in this embodiment, the extension base plate 5 is slidably mounted on the positioning table 4, and is threadedly connected and passed through by an adjustment screw 10 positioned on the positioning table 4, and one end of the adjustment screw 10 is driven and connected by an adjustment motor 11, so as to achieve the purpose of automatic position adjustment.

[0040] Example 3

[0041] like Figure 7As shown, a pressure plate expander, in this embodiment, also includes a combined frame coaxially distributed with the pressure plate 2, the combined frame includes an inner ring 12 and an outer ring 13 that are concentric and fixedly connected by a connecting block, at least three groups of slide grooves 14 are evenly distributed along the circumference of the outer ring 13, and each group of slide grooves 14 are distributed along the radial extension, the machine frame 3 is slidably installed in the slide grooves 14, and a group of threaded blocks 15 are also provided on the side away from the positioning table 4, and the threaded block 15 is internally threaded with a group of screws The connecting rod 16, the screw connecting rod 16 is installed on the inner ring 12 for transfer, so each group of pressure plates 2 can evenly arrange at least three groups of expander units along the circumferential direction, and the three groups of expander units can be assembled and installed on the combined frame through the machine stand 3. The connection method of the combined frame by the inner ring 12 and the outer ring 13 will not affect the installation of the pressure plate 2 and the reel 1. By positioning the combined frame, the positioning of at least three groups of expander units can be achieved, and the combined application of multiple groups of expander units also further improves the stability of the structural expansion.

[0042] The working principle of the present invention is as follows: a pressure plate expander provided by the present invention can realize more flexible correction of the width of the reel 1 pressure plate 2 when rotating to collect materials, so that the material strip can be appropriately collected in the reel 1 pressure plate 2, reducing the damage caused by material jamming, and at the same time ensuring better adaptability during use. After long-term use, better adaptive adjustment can still be performed to improve the service life; specifically, after the spacing between the two groups of pressure plates 2 is determined, the X-shaped guide clamping unit 6 of each group of expansion units can be positioned at a determined position of the positioning table 4 with the expansion unit, and then can also adapt to the width of the pressure plate 2 to clamp on both sides of the pressure plate 2, so that the stable expansion of the spacing between the two groups of pressure plates 2 can be achieved, and because the clamping opening of the X-shaped guide clamping unit 6 can be driven and adjusted by the clamping and pushing unit 7, it can also better adapt to pressure plates 2 of different thicknesses, and the structure can still be more conveniently adaptively adjusted after wear and tear after long-term use to improve the service life.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure plate expander, characterized in that: The invention comprises a reel (1) for winding a material strip, a pressure plate (2) limited on both sides of the reel (1), and an expander body for guiding and positioning the two groups of pressure plates (2), wherein the expander body comprises a positioning table (4) fixed on a machine frame (3) and two groups of expansion units detachably mounted on the positioning table (4) and respectively used for expanding and positioning the two groups of pressure plates (2), each group of expansion units comprises a group of extension base plates (5) detachably positioned on the positioning table plate (4) and a group of X-shaped guide clamping units (6) mounted on the expansion base plates, one end of the clamping opening of the X-shaped guide clamping unit (6) is driven and clamped by a clamping and pushing unit (7) so that the clamping opening of the other end thereof is clamped and positioned on both sides of a group of pressure plates (2).

2. A pressure plate expander according to claim 1, characterized in that: The X-shaped guide clamp unit (6) comprises a group of central shafts (62) mounted on the extension base plate (5) via two groups of columns (61) and two groups of hinged frames (63) mounted outside the central shaft (62). The two groups of hinged frames (63) are distributed in an X-shape on the central shaft (62), one end of which is engaged with and abuts against the two sides of the pressure plate (2), and the other end of which is provided with a guide rod (64). The extension base plate (5) is also provided with two groups of guide side plates (65). The inner sides of the two groups of guide side plates (65) are provided with guide grooves (66) centered on the central shaft (62). The two ends of the two groups of guide rods (64) are guided and installed in the two groups of guide grooves (66). Under the drive of the clamping and pushing unit (7), they rotate along the guide grooves (66) to abut against the two sides of the pressure plate (2).

3. A pressure plate expander according to claim 2, characterized in that: At least one set of pressing roller units is disposed at each end of the two sets of hinged frames (63) pressed against both sides of the pressure plate (2), and the pressing roller units on the two sets of hinged frames are disposed opposite to each other in pairs.

4. A pressure plate expander according to claim 3, characterized in that: The pressing roller unit comprises a hemispherical pressing cap (67) fixed on the end of the hinge frame (63) and a ball unit (68) embedded in the pressing cap and rolling.

5. A pressure plate expander according to claim 4, characterized in that: The clamping and pushing unit (7) comprises two groups of driving blocks (69) slidably connected between two groups of guide side plates (65). The two groups of driving blocks (69) are reversely threadedly connected to the outside of a group of driving screws (610), and each group of driving plates (611) is also positioned thereon. The two groups of driving plates (611) move in reverse directions under the drive of the driving screws (610) to clamp and drive the two groups of guide rods (64) located between them.

6. A pressure plate expander according to claim 5, characterized in that: The driving screw (610) is mounted on the extension base plate (5) and is driven to rotate by a driving motor (612).

7. A platen expander according to any one of claims 1 to 6, characterized in that: A group of connecting columns (8) are arranged at the bottom end of the extension base plate (5), and the connecting columns (8) are passed through slots provided on the positioning platform (4) and are locked and fixed by locking nuts (9).

8. A platen expander according to any one of claims 1 to 6, characterized in that: The extension base plate (5) is slidably mounted on the positioning platform (4) and is threadedly connected and passed through an adjustment screw (10) positioned on the positioning platform (4); one end of the adjustment screw (10) is driven and connected by an adjustment motor (11).

9. A pressure plate expander according to claim 1, characterized in that: The invention also comprises a combined frame coaxially distributed with the pressure plate (2), the combined frame comprising an inner ring (12) and an outer ring (13) which are concentric and fixedly connected by a connecting block, at least three groups of slide grooves (14) are evenly distributed along the circumference of the outer ring (13), and each group of slide grooves (14) are distributed and extend radially, the machine table frame (3) is slidably installed in the slide grooves (14), and a group of threaded blocks (15) are also arranged on the side away from the positioning table (4), the threaded blocks (15) are internally threadedly connected to a group of screw rods (16), and the screw rods (16) are installed on the inner ring (12) by transfer.

Images