Roll-to-roll gap adjustment mechanism for a sheet embosser

Abstract

The utility model provides a kind of roll gap adjusting mechanism of sheet embossing machine, including left front side plate and right front side plate, parallelly between two rotatable steel plate skin roller assembly and rubber skin roller assembly are equipped, both ends of steel plate skin roller assembly are connected with left front side plate and right front side plate by bearing ring, bearing ring has annular mounting portion and flange portion, annular mounting portion is matched with left front side plate and right front side plate gap, its inside is provided with eccentric hole, steel plate skin roller assembly is rotatably arranged in eccentric hole;Adjusting device is equipped on left front side plate and right front side plate.The technical scheme is adjusted the posture of bearing ring by adjusting device, enough adjustment steel plate skin roller assembly and the gap of rubber skin roller assembly, simple structure is conducive to use and maintenance in industrial production.

Description

Technical Field

[0001] This utility model relates to the field of embossing machine technology, specifically to a roller gap adjustment mechanism for a sheet embossing machine. Background Technology

[0002] For some rigid paper or plastic packaging materials, manufacturers often use embossing to create various textured patterns on the surface to enhance their aesthetics.

[0003] Patent document CN212046188U discloses an adjustable paper-pressing roller structure. One end of the paper-pressing roller frame is rotatably connected to the machine frame, and the other end is connected via a first telescopic component. Adjusting the extension or retraction of the first telescopic component adjusts the distance between the pressure roller and the glue-coating roller located in the middle of the paper-pressing roller frame. The rotatable connection between the paper-pressing roller frame and the machine frame is via an eccentric wheel. Adjusting the extension or retraction of the piston rod of the second telescopic component causes the connecting rod to swing, changing the eccentric position of the eccentric wheel. This design allows for precise control of fine-tuning, thus improving adjustment accuracy.

[0004] However, this solution has a relatively complex structure, requiring adjustment via a large first telescopic component, which is inconvenient for implementation and maintenance. Therefore, there is an urgent need for a simple roller gap adjustment mechanism to solve the problems existing in the prior art. Summary of the Invention

[0005] The present invention aims to solve the technical problem that the existing roller gap adjustment mechanism is too complex.

[0006] To solve the above-mentioned technical problems, this utility model provides a roller gap adjustment mechanism for a sheet embossing machine. The sheet embossing machine has a frame, which includes a left front side plate and a right front side plate arranged opposite to each other. A rotatable steel sheet roller assembly and a rubber sheet roller assembly are arranged parallel between the left and right front side plates. Both ends of the steel sheet roller assembly are connected to the left and right front side plates respectively through bearing rings. The bearing ring has an annular mounting part and a flange part connected to one end of the annular mounting part. The outer circumference of the annular mounting part is clearance-fitted with the left and right front side plates. An eccentric hole is opened inside the annular mounting part, and the steel sheet roller assembly is rotatably disposed in the eccentric hole. An adjustment device is provided on both the left and right front side plates to allow the bearing ring to rotate along the axis of the outer circumference of the annular mounting part.

[0007] This technical solution involves mounting a steel sheet roller assembly using a bearing ring with an eccentric hole, and adjusting the bearing ring's orientation via an adjustment device to change the axial position of the steel sheet roller assembly, thereby adjusting the gap between the steel sheet roller assembly and the rubber roller assembly. This solution has a simple structure and is more conducive to use and maintenance in industrial production. Attached Figure Description

[0008] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is an exploded view of an embodiment of the present utility model; Figure 3 This is a front view of an embodiment of the present utility model; Figure 4 for Figure 3 Cross-sectional view of the middle BB section; Figure 5 This is a right view of an embodiment of the present utility model; Figure 6 for Figure 5 Cross-sectional view of the C-plane; Figure 7 This is a left view of an embodiment of the present utility model; Figure 8 This is a three-dimensional structural diagram of the bearing ring in an embodiment of the present utility model; Figure 9 This is a front view of the bearing ring in an embodiment of this utility model; Figure 10 for Figure 1 Enlarged view of point A in the middle.

[0009] As shown in the figure: 101. Left front side panel; 1011. Fixed seat pad; 1012. Positioner mounting sheet metal; 102. Right front side panel; 201. Steel plate roller assembly; 202. Rubber roller assembly; 300. Bearing ring; 301. Annular mounting part; 302. Flange part; 303. Eccentric hole; 304. Mounting plane; 305. Clearance hole; 400. Adjusting device; 401. Connecting block; 402. Nut fixing block; 403. Rod end spherical bearing; 404. Lead screw fixing seat; 405. Lead screw; 406. Lead screw nut; 407. Position indicator; 408. Scale knob; 501. Thrust bearing; 502. Bearing cap; 503. Drive gear; 504. Driven gear; 505. Double row tapered roller bearing; 506. Gear flange; 507. Bearing spacer. Detailed Implementation

[0010] like Figure 1 As shown, this application provides a roller gap adjustment mechanism for a sheet embossing machine. The sheet embossing machine has a frame, which includes a left front side plate 101 and a right front side plate 102, which are placed vertically opposite each other.

[0011] A rotatable steel plate roller assembly 201 and a rubber roller assembly 202 are mounted parallel to each other between the left front side plate 101 and the right front side plate 102. Through their cooperation, materials passing through the gap can be pressed and processed, thereby changing the thickness of the material or forming unique embossing on the material. The two ends of the steel plate roller assembly 201 are respectively mounted on the left front side plate 101 and the right front side plate 102 via bearing rings 300.

[0012] Specifically, such as Figure 8 and Figure 9 As shown, the bearing ring 300 is a flange-shaped component with a tubular annular mounting portion 301. The annular mounting portion 301 has an eccentric structure, where the axis of its inner circumference does not coincide with the axis of its outer circumference, thus forming an eccentric hole 303. The bearing ring 300 also includes a flange portion 302 formed at one end of the annular mounting portion 301. When the bearing ring 300 is mounted on the left front side plate 101 and the right front side plate 102, the annular mounting portion 301 is clearance-fitted with the left front side plate 101 and the right front side plate 102. The steel plate roller assembly 201 is rotatably disposed within the eccentric hole 303.

[0013] When the bearing ring 300 is rotated, the position of the axis of the steel plate roller assembly 201 will change because the inner and outer circumferences of the bearing ring 300 do not coincide, thereby changing the gap width with the rubber roller assembly 202.

[0014] Adjustment devices 400 for adjusting the posture of the bearing ring 300 are also provided on the left front side plate 101 and the right front side plate 102. Controlling the adjustment device 400 allows the bearing ring 300 to rotate around the axis of the outer circumference of its annular mounting portion 301. The adjustment device 400 provided on the left front side plate 101 and the adjustment device 400 provided on the right front side plate 102 have the same structure.

[0015] Specifically, refer to Figure 7 and Figure 10 In some embodiments, the adjusting device 400 includes a connecting block 401 mounted on the side of the flange portion 302; it also includes a nut fixing block 402, wherein a rod end spherical bearing 403 is fitted at one end of the nut fixing block 402 near the connecting block 401, and the rod end spherical bearing 403 is hinged to the connecting block 401; and a lead screw nut 406 is fixed at one end of the nut fixing block 402 away from the rod end spherical bearing 403.

[0016] Furthermore, the adjustment device 400 also includes a lead screw fixing seat 404 installed on the outer side of the left front side plate 101, and a lead screw 405 rotatably inserted in the lead screw fixing seat 404, wherein the lead screw 405 and the lead screw nut 406 form a threaded transmission engagement.

[0017] When the lead screw 405 rotates, it drives the nut fixing block 402, which is equipped with the lead screw nut 406, to move linearly along its axis. Through transmission, it eventually drives the connecting block 401 to move, thereby realizing the circumferential rotation of the bearing ring 300 and ultimately achieving the effect of adjusting the posture of the steel plate roller assembly 201.

[0018] In some embodiments, a fixed seat plate 1011 is also installed on the outer side of the left front side plate 101, and a nut fixing block 402 is installed on the fixed seat plate 1011. In some embodiments, a positioner locking sheet metal 1012 is also installed on the fixed seat plate 1011; correspondingly, the adjustment device 400 is also equipped with a position display 407, which is installed at the end of the positioner locking sheet metal 1012 and sleeved on the lead screw 405, so as to intuitively provide feedback on the adjustment information of the lead screw 405 and facilitate user operation.

[0019] Furthermore, the adjustment device 400 also includes a scale knob 408, which is installed at the end of the lead screw 405 away from the nut fixing block 402. The scale knob 408 not only provides a scale reference for the rotation of the lead screw 405, but also provides a comfortable grip structure for the user to rotate the lead screw 405.

[0020] In some implementations, such as Figure 8 As shown, to enhance the connection between the connecting block 401 and the side of the flange 302, the edge portion of the flange 302 is cut off, thereby forming a flat mounting surface 304 on its side. Compared to directly mounting the connecting block 401 on the side of the curved flange 302, this solution is more conducive to forming a firm connection between the connecting block 401 and the flange 302.

[0021] In some implementations, such as Figure 9 As shown, the flange 302 has two or more clearance holes 305, and all clearance holes 305 are evenly arranged around the axis of the flange 302. A thrust bearing 501 is installed at the end of the flange 302 away from the steel plate roller assembly 201, and a bearing cap 502 is provided on the side of the thrust bearing 501 away from the flange 302. After the bolts pass through the clearance holes 305, the bearing cap 502 is fixed to the left front side plate 101, thus forming an axial limiting structure for the bearing ring 300.

[0022] The purpose of this structure is to retain the circumferential rotation function of the bearing ring 300, while also applying axial restraint to the bearing ring 300 through the cooperation of the bearing cap 502 and the bolts, effectively preventing axial movement or detachment during equipment operation and ensuring the operational stability of the overall structure. In this embodiment, there are three clearance holes 305.

[0023] In some embodiments, the clearance hole 305 is an arc-shaped slot structure extending circumferentially along the flange portion 302. This design conforms to the rotation trajectory of the bearing ring 300, which can prevent the bolt from interfering with the flange portion 302 when the bearing ring 300 rotates; at the same time, it can also effectively ensure the overall mechanical strength of the flange portion 302 and extend its service life.

[0024] In some embodiments, the rubber roller assembly 202 is connected to the left front side plate 101 and the right front side plate 102 at both ends, and a drive gear 503 is provided at one end. When the rubber roller assembly 202 receives driving force from an external system, the drive gear 503 is driven to rotate synchronously. Correspondingly, a driven gear 504 is provided at one end of the steel plate roller assembly 201. The driven gear 504 meshes with the drive gear 503 and is driven by the drive gear 503 to drive the steel plate roller assembly 201 to rotate.

[0025] Reference Figure 2 , Figure 4 and Figure 6 In some embodiments, in order to reduce frictional resistance during rotation and enhance load-bearing capacity, a double-row tapered roller bearing 505 is also installed in the annular mounting part 301. The steel plate roller assembly 201 and the bearing ring 300 are connected by the double-row tapered roller bearing 505 so that the two can rotate relative to each other.

[0026] Furthermore, in some embodiments, a bearing spacer 507 is also fitted on the rotating shaft of the steel sheet roller assembly 201. The spacer is located on the side of the double-row tapered roller bearing 505 away from the steel sheet roller assembly 201, thereby limiting the double-row tapered roller bearing 505 and preventing it from disengaging from the working position.

[0027] This solution uses a bearing ring 300 with an eccentric hole 303 to connect the left front side plate 101 and the right front side plate 102, and uses an adjusting device 400 to adjust the posture of the bearing ring 300, thereby achieving adjustment of the gap between the steel plate roller assembly 201 and the rubber roller assembly 202. Compared with the prior art, this solution has a simpler structure and is more convenient for use and maintenance during production and processing.

Claims

1. A roller gap adjustment mechanism for a sheet embossing machine, the sheet embossing machine having a frame, the frame including a left front side plate (101) and a right front side plate (102) arranged opposite to each other, and a rotatable steel sheet roller assembly (201) and a rubber sheet roller assembly (202) arranged parallel between the left front side plate (101) and the right front side plate (102), characterized in that: Both ends of the steel plate roller assembly (201) are connected to the left front side plate (101) and the right front side plate (102) respectively via bearing rings (300). The bearing ring (300) has an annular mounting part (301) and a flange part (302) connected to one end of the annular mounting part (301). The outer circumference of the annular mounting part (301) is clearance-fitted with the left front side plate (101) and the right front side plate (102). An eccentric hole (303) is provided inside the annular mounting part (301). The steel plate roller assembly (201) is rotatably disposed in the eccentric hole (303). Both the left front side plate (101) and the right front side plate (102) are provided with adjustment devices (400) that allow the bearing ring (300) to rotate along the axis of the outer circumference of the annular mounting part (301).

2. The roller gap adjustment mechanism of the sheet embossing machine according to claim 1, characterized in that: The adjusting device (400) includes a connecting block (401) installed on the side of the flange (302); The adjusting device (400) also includes a nut fixing block (402), and a rod end spherical bearing (403) is provided at one end of the nut fixing block (402) near the connecting block (401). The rod end spherical bearing (403) is hinged to the connecting block (401). A lead screw nut (406) is provided at one end of the nut fixing block (402) away from the rod end spherical bearing (403). The adjusting device (400) also includes a lead screw fixing seat (404) mounted on the outer side of the left front side plate (101), and a lead screw (405) rotatably disposed in the lead screw fixing seat (404), the lead screw (405) cooperating with the lead screw nut (406).

3. The roller gap adjustment mechanism of the sheet embossing machine according to claim 2, characterized in that: A fixed seat plate (1011) is also installed on the outer side of the left front side plate (101), and a nut fixing block (402) is installed on the fixed seat plate (1011); A positioner locking sheet metal (1012) is also installed on the fixed seat plate (1011); the adjustment device (400) also includes a position display (407), which is installed on the positioner locking sheet metal (1012) and sleeved on the lead screw (405); The adjusting device (400) also includes a scale knob (408), which is mounted on the end of the lead screw (405) away from the nut fixing block (402).

4. The roller gap adjustment mechanism of the sheet embossing machine according to claim 2, characterized in that: The edge portion of the flange (302) is cut off to form a mounting plane (304) on its side, and the connecting block (401) is mounted on the mounting plane (304).

5. The roller gap adjustment mechanism of the sheet embossing machine according to claim 1, characterized in that: Two or more clearance holes (305) are provided on the flange (302), and the clearance holes (305) are evenly arranged about the axis of the flange (302); A thrust bearing (501) is provided at one end of the flange (302) away from the steel plate roller assembly (201), and a bearing cap (502) is provided at the other end of the thrust bearing (501) away from the flange (302); wherein the bearing cap (502) is fixed to the left front side plate (101) by bolts, and the bolts pass through the relief hole (305), thereby forming an axial limiting structure for the bearing ring (300).

6. The roller gap adjustment mechanism of the sheet embossing machine according to claim 5, characterized in that: The clearance hole (305) extends in an arc shape along the circumference of the flange (302) to form an arc-shaped hole and groove structure.

7. The roller gap adjustment mechanism of the sheet embossing machine according to claim 1, characterized in that: The two ends of the rubber roller assembly (202) are connected to the left front side plate (101) and the right front side plate (102) respectively, and one end of it is provided with a drive gear (503). A driven gear (504) is provided at one end of the steel sheet roller assembly (201). The driven gear (504) meshes with the driving gear (503) and is driven by the driving gear (503) to drive the steel sheet roller assembly (201) to rotate.

8. The roller gap adjustment mechanism of the sheet embossing machine according to claim 1, characterized in that: A double-row tapered roller bearing (505) is installed in the annular mounting part (301). The steel plate roller assembly (201) and the bearing ring (300) are connected by the double-row tapered roller bearing (505) so that the two can rotate relative to each other.

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