Die cutting mechanism and die cutting machine using same

Abstract

The utility model relates to the field of die cutting, in particular to a die cutting mechanism and a die cutting machine using the same. A die cutting mechanism comprises a rack, an upper roller, a lower roller and a driving assembly, the upper roller and the lower roller are located on the rack, the driving assembly is used for providing power to enable the upper roller and the lower roller to rotate relatively, the die cutting mechanism further comprises a lower abutting assembly used for supporting the lower roller, and the lower abutting assembly comprises a lower installation support arranged on the rack. And the lower mounting bracket is provided with at least one lower roller which is propped against the lower roller. The lower abutting assembly is arranged below the lower roller, the lower roller is supported by abutting the lower roller through the lower rolling wheel of the lower abutting assembly, the situation that the lower roller deforms under the condition that the lower roller is only subjected to upper pressure is avoided, and the production requirement of the self-adhesive label of the die-cut thin backing paper is met.

Description

Technical Field

[0001] This application relates to the field of die-cutting, and in particular to a die-cutting mechanism and a die-cutting machine using the die-cutting mechanism. Background Art

[0002] Currently, in order to save costs, the base paper of self-adhesive labels is made thinner and thinner, from 60 g per square meter in the past to 35 g per square meter for some products today. When die-cutting self-adhesive labels, the face paper of the self-adhesive label needs to be cut through, while the base paper cannot be cut through, so that the produced self-adhesive labels can be used normally.

[0003] The current die-cutting machine has the following problems when used to cut self-adhesive labels with extremely thin base paper materials: The existing die-cutting mechanism usually has a magnetic roller as the upper roller and a bottom roller as the lower roller. In order to ensure the quality stability of the die-cutting production process, a certain pressure is usually applied to the magnetic roller so that the magnetic roller closely adheres to the bottom roller. However, a large force will also be applied to the bottom roller during this process, resulting in a slight deformation of the bottom roller. When cutting self-adhesive labels with extremely thin base paper materials, a slight deviation and deformation of the bottom roller may cause the base paper to break during die-cutting. Utility Model Content

[0004] In order to meet the production requirements of self-adhesive labels with thin base paper, this application provides a die-cutting mechanism and a die-cutting machine using the die-cutting mechanism.

[0005] In a first aspect, a die-cutting mechanism provided by this application adopts the following technical solution:

[0006] A die-cutting mechanism includes a frame, an upper roller and a lower roller located on the frame, a driving component for providing power to make the upper roller and the lower roller rotate relative to each other, and a lower abutting component for supporting the lower roller. The lower abutting component includes a lower mounting bracket arranged on the frame, and at least one lower roller abuting against the lower roller is arranged on the lower mounting bracket.

[0007] By adopting the above technical solution, a lower abutting component is arranged below the lower roller, and the lower roller is supported by the lower rollers of the lower abutting component, so as to prevent the lower roller from deforming when only receiving the upper pressure, and ensure the production requirements of die-cutting self-adhesive labels with thin base paper.

[0008] Preferably, the lower mounting bracket includes two lower rollers symmetrically arranged with respect to the vertical plane where the axis of the lower roller is located, and the axial directions of the lower rollers are all parallel to the axial direction of the lower roller.

[0009] By adopting the above technical solution, the two lower rollers balanceably abut against both sides of the lower side of the lower roller, and at the same time, the axial direction of the lower roller is parallel to the axial direction of the lower roller, so that the rotation of the lower roller will not be affected when the lower roller abuts.

[0010] Preferably, at least two adjusting members for adjusting the abutting pressure between the lower roller and the lower roll are provided at a position on the frame below the lower mounting bracket.

[0011] By adopting the above technical solution, two adjusting members are arranged at a position below the lower mounting bracket to adjust the abutting pressure between the lower roller and the lower roll, so that the acting forces exerted by the two lower rollers on the lower roll are balanced.

[0012] Preferably, a mounting seat is fixed at a position on the side of the frame where the lower mounting bracket is located. A through hole penetrating the mounting seat is formed on the side of the mounting seat close to the lower mounting bracket. The length direction of the through hole extends in the vertical direction. A locking member for relatively fixing the lower mounting bracket and the mounting seat by passing through the through hole is provided on the mounting seat.

[0013] By adopting the above technical solution, after the abutting pressure exerted by the lower roller on the lower roll is adjusted, the lower mounting bracket and the mounting seat are locked by the cooperation of the locking member, so as to prevent the change of the abutting pressure exerted on the lower roll caused by the movement of the lower mounting bracket.

[0014] Preferably, the lower mounting bracket includes a lower roller. The axis of the lower roller and the axis of the lower roll are in the same vertical plane. An adjusting member for adjusting the abutting pressure between the lower roller and the lower roll is provided at a position on the frame below the lower mounting bracket. A mounting seat is fixed at a position on the side of the frame where the lower mounting bracket is located. Two through holes arranged side by side and penetrating the mounting seat are provided on the side of the mounting seat. The length direction of the through hole extends in the vertical direction. A locking member for relatively fixing the lower mounting bracket and the mounting seat by passing through the through hole is provided on the mounting seat.

[0015] By adopting the above technical solution, only one lower roller is arranged on the lower mounting bracket to abut against the directly below of the lower roll. The adjusting member adjusts the appropriate pressure exerted by the lower roller on the lower roll, and the double-through-hole structure cooperates with the locking member to limit the angle and position of the lower mounting bracket to prevent it from being laterally offset.

[0016] Preferably, the adjusting member is an adjusting bolt threadedly engaged with the frame, and the locking member is a mounting bolt passing through the lower mounting bracket and the mounting seat and a mounting nut cooperating with the mounting bolt.

[0017] Preferably, two lower abutting assemblies are provided and are respectively located at positions close to both ends of the lower roll.

[0018] By adopting the above technical solution, the lower abutting assemblies are provided on both sides of the lower roll, so that the lower roll can be evenly subjected to an upward acting force.

[0019] Preferably, the frame includes two left and right columns, a top frame connected to the upper ends of the two columns, and a top frame connected to the lower-middle positions of the two columns. On the two columns, there are formed vertically-aligned track grooves. In each of the two track grooves, there is installed a bearing block that slides vertically along the track groove. A bearing is installed in the bearing block, and the two ends of the upper roller are respectively inserted into the bearings of the two bearing blocks. The upper abutting assembly includes a pressing screw installed on the top frame and threadedly engaged with the top frame, and an upper pressing member that is slidably connected to the track groove and presses the upper roller under the action of the pressing screw. There are two pressing screws, which are respectively located at the positions on both sides of the top frame close to the columns. A handle is fixedly connected to the upper end of each pressing screw to facilitate driving the rotation of the pressing screw. The upper pressing member includes an upper pressing plate located above the bearing block and straddling the two track grooves. At the positions near the track grooves at both ends of the lower surface of the upper pressing plate, there is installed an upper mounting bracket. On each upper mounting bracket, there are installed two upper rollers. The two upper rollers on each upper mounting bracket are symmetrically arranged with respect to the vertical plane where the axis of the upper roller is located. The axial directions of the upper rollers are all parallel to the axial direction of the upper roller.

[0020] By adopting the above technical solution, the upper roller can move along the track groove through the bearing block to adapt to the die-cutting materials of different thicknesses. By adjusting the pressing screw to apply a force to the upper pressing plate, the upper rollers are abutted and pressed against the upper roller, and the upper roller is pressed against the lower roller, ensuring the quality of die-cutting.

[0021] Preferably, the driving assembly includes a driving motor installed on the frame, a transmission shaft connected to the output shaft of the driving motor, a first-stage transmission gear connected to the transmission shaft, a lower transmission gear connected to the side surface of the lower roller, and an upper transmission gear connected to the side surface of the upper roller. The two ends of the transmission shaft pass through two bearings provided on the frame. The output shaft transmission gear meshes with the lower transmission gear, and the lower transmission gear meshes with the upper transmission gear.

[0022] By adopting the above technical solution, the output shaft of the driving motor is not directly connected to the upper roller or the lower roller, but drives the lower transmission gear and the upper transmission gear to rotate through the transmission shaft and then through the first-stage transmission gear on the transmission shaft, so that the upper roller and the lower roller rotate. The two ends of the transmission shaft are also positioned through the cooperation of bearings. The vibration of the driving motor itself will be weakened after passing through the transmission shaft, and further weakened when transmitted through the first-stage transmission gear, the lower transmission gear, and the upper transmission gear, greatly reducing the die-cutting error caused by the motor vibration.

[0023] In a second aspect, the present application provides a die-cutting machine, adopting the following technical solution:

[0024] A die-cutting machine includes the above die-cutting mechanism.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. A lower abutting component is arranged below the lower roller, and the lower roller of the lower abutting component abuts against the lower roller to support the lower roller, so as to prevent the lower roller from deforming when only receiving the upper pressure, and ensure the production requirements of die-cutting self-adhesive labels with thin bottom paper.

[0027] 2. The vibration of the driving motor itself will be weakened after passing through the transmission shaft, and further weakened when transmitted through the first-stage transmission gear, the lower transmission gear and the upper transmission gear, greatly reducing the die-cutting error caused by the motor vibration and meeting the production requirements of die-cutting self-adhesive labels with thin bottom paper. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of Embodiment 1;

[0029] Figure 2 is Figure 1 an enlarged view of part A in

[0030] Figure 3 is a schematic structural diagram of the lower abutting component in Embodiment 1;

[0031] Figure 4 is a schematic structural diagram of Embodiment 1 after hiding the frame;

[0032] Figure 5 is a schematic structural diagram of the lower abutting component in Embodiment 2.

[0033] Description of the Reference Numerals: 1, frame; 2, upper roller; 3, lower roller; 4, upper abutting component; 5, lower abutting component; 6, driving component; 7, column; 8, top frame; 9, bottom frame; 10, track groove; 11, bearing seat; 12, installation groove; 13, pressing screw; 14, upper pressing part; 15, upper pressing plate; 16, upper mounting bracket; 17, upper roller; 18, lower mounting bracket; 19, lower roller; 20, adjusting part; 21, locking part; 22, driving motor; 23, transmission shaft; 24, first-stage transmission gear; 25, lower transmission gear; 26, upper transmission gear; 27, mounting seat; 28, through hole. Detailed Embodiments

[0034] The following further Figures 1-5 describes the present application in detail with reference to the

[0035] Embodiments of the present application disclose a die-cutting mechanism and a die-cutting machine using the die-cutting mechanism. The "upper", "lower", "left", and "right" used in the embodiments are all schematic relative directions for describing the positional relationship, and are not limitations on the positional relationship.

[0036] Embodiment 1:

[0037] AsFigure 1 As shown in the figure, the die-cutting mechanism includes a frame 1, an upper roller 2 and a lower roller 3 located on the frame 1, an upper abutting component 4 for abutting against the upper roller 2, a lower abutting component 5 for supporting the lower roller 3, and a driving component 6 for providing power to make the upper roller 2 and the lower roller 3 rotate relative to each other. Either the upper roller 2 or the lower roller 3 can be installed as a magnetic roller to adsorb the magnetic cutter blade, and the other is used as a bottom roller.

[0038] As Figure 1 shown in the figure, the frame 1 includes two left and right columns 7, a top frame 8 connected to the upper ends of the two columns 7, and a bottom frame 9 connected to the positions of the two columns 7 near the lower part of the middle. Two vertical and position-aligned track grooves 10 are formed on the two columns 7. Bearing seats 11 that slide vertically along the track grooves 10 are installed in the two track grooves 10. Bearings are installed in the bearing seats 11. The two ends of the upper roller 2 are respectively inserted into the bearings of the two bearing seats 11, so that the upper roller 2 can slide together with the bearing seats 11 without affecting the rotation of the upper roller 2. At the positions directly below the track grooves 10 on the two columns 7, an installation groove 12 is formed respectively. Bearings are installed in the installation grooves 12. The two ends of the lower roller 3 are respectively inserted into the bearings of the two installation grooves 12, so that the position of the lower roller 3 is fixed and it can rotate.

[0039] As Figure 1 and Figure 2 shown in the figure, the upper abutting component 4 includes a pressing screw 13 installed on the top frame 8 and threadedly engaged with the top frame 8, and an upper pressing member 14 that is slidably connected to the track groove 10 and abuts against the upper roller 2 under the action of the pressing screw 13. There are two pressing screws 13, which are respectively located at the positions on both sides of the top frame 8 close to the columns 7. A handle is fixedly connected to the upper end of each pressing screw 13 to facilitate driving the rotation of the pressing screw 13 and realizing the adjustment of the up and down position of the pressing screw 13. The upper pressing member 14 includes an upper pressing plate 15 located above the bearing seat 11 and straddling the two track grooves 10. At the positions of both ends of the lower surface of the upper pressing plate 15 close to the track grooves 10, an upper mounting bracket 16 is installed respectively. Two upper rollers 17 are installed on each upper mounting bracket 16. The two upper rollers 17 on each upper mounting bracket 16 are arranged in the front and rear directions and are symmetrically arranged with respect to the vertical plane where the axis of the upper roller 2 is located. The axial directions of all the upper rollers 17 are parallel to the axial direction of the upper roller 2. By pressing the upper pressing plate 15 downward with the pressing screw 13, the upper rollers 17 abut against and press the upper roller 2 without affecting the rotation of the upper roller 2.

[0040] As Figure 1 and Figure 3As shown in the figure, the lower abutting component 5 includes two lower mounting brackets 18 mounted on the upper surface of the chassis 9 near the positions of the two side columns 7. Above each lower mounting bracket 18, two lower rollers 19 are mounted. The two lower rollers 19 on each lower mounting bracket 18 are arranged in the front-back direction and are symmetrically arranged with respect to the vertical plane where the axis of the lower roller 3 is located. The axial directions of all the lower rollers 19 are parallel to the axial direction of the lower roller 3. By abutting the lower rollers 19 against the lower roller 3, the rotation of the lower roller 3 will not be affected. At the position below each lower mounting bracket 18 on the chassis 9, two adjusting bolts arranged in the front-back direction are provided. The adjusting bolts, as adjusting members 20, are in threaded cooperation with the chassis 9 and abut against the lower mounting bracket 18 after passing through the chassis 9 from bottom to top. At the position on the side of each lower mounting bracket 18 on the chassis 9, a mounting seat 27 is fixed. A through hole 28 penetrating the mounting seat 27 is provided on the side of the mounting seat 27. The through hole 28 is an elongated hole and extends in the vertical direction. The mounting bolts, as locking members 21, pass through the lower mounting bracket 18 and the mounting seat 27 and are tightened and fixed by mounting nuts.

[0041] As Figure 1 and Figure 4 shown in the figure, the driving component 6 includes a driving motor 22 mounted on one of the side columns 7, a transmission shaft 23 connected to the output shaft of the driving motor 22, a first-stage transmission gear 24 connected to the transmission shaft 23, a lower transmission gear 25 connected to the side of the lower roller 3, and an upper transmission gear 26 connected to the side of the upper roller 2. The output shaft transmission gear meshes with the lower transmission gear 25, and the lower transmission gear 25 meshes with the upper transmission gear 26. When the driving motor 22 drives the transmission shaft 23 to rotate, the transmission shaft 23 drives the lower transmission gear 25 to rotate through the first-stage transmission gear 24, and drives the upper transmission gear 26 to rotate through the lower transmission gear 25, realizing the synchronous rotation of the upper roller 2 and the lower roller 3. The two ends of the transmission shaft 23 pass through the bearings provided on the two side columns 7 of the frame 1 to position the two ends of the transmission shaft 23.

[0042] Specific usage process:

[0043] The magnetic cutter blade is adsorbed and installed on the upper roller 2 or the lower roller 3. After the die-cutting material passes through the position between the upper roller 2 and the lower roller 3, the pressing screw 13 is lowered so that the upper roller 17 presses the upper roller 2, and at the same time, the lower roller 3 will not bend downward under the abutting and positioning of the lower rollers 19.

[0044] Embodiment 3:

[0045] As Figure 5As shown in the figure, the difference between the die-cutting mechanism and that of the first embodiment is that the lower abutting component 5 includes two lower mounting brackets 18 mounted on the upper surface of the chassis 9 near both ends of the lower roller 3. Above each lower mounting bracket 18, a lower roller 19 is mounted. The axis of the lower roller 19 and the axis of the lower roller 3 are in the same vertical plane. At the position below each lower mounting bracket 18 on the chassis 9, an adjusting bolt is provided. The adjusting bolt as the adjusting member 20 is in threaded cooperation with the chassis 9 and abuts against the lower mounting bracket 18 after passing through the chassis 9 from bottom to top. At the position on the side of each lower mounting bracket 18 on the chassis 9, a mounting seat 27 is fixed. On the side of the mounting seat 27, two through holes 28 penetrating the mounting seat 27 are provided. The through holes 28 are arranged side by side and offset in the front-back direction, and the through holes 28 are waist-shaped holes extending in the vertical direction. The mounting bolts as the locking members 21 pass through the lower mounting bracket 18 and the mounting seat 27 and are tightened and fixed by mounting nuts.

[0046] Embodiment Three:

[0047] A die-cutting machine includes the die-cutting mechanism of Embodiment One or Embodiment Two.

[0048] The above are all the preferred embodiments of this application. The protection scope of this application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A die-cutting mechanism, comprising a frame (1), an upper roller (2) and a lower roller (3) located on the frame (1), and a driving assembly (6) for providing power to relatively rotate the upper roller (2) and the lower roller (3), characterized in that: It further includes a lower abutting component (5) for supporting the lower roller (3). The lower abutting component (5) includes a lower mounting bracket (18) arranged on the frame (1), and at least one lower roller (19) abutting against the lower roller (3) is arranged on the lower mounting bracket (18).

2. The die-cutting mechanism according to claim 1, characterized in that: There are two lower rollers (19) symmetrically arranged on the lower mounting bracket (18) with respect to the vertical plane where the axis of the lower roller (3) is located. The axial directions of the lower rollers (19) are all parallel to the axial direction of the lower roller (3).

3. The die-cutting mechanism according to claim 2, characterized in that: At least two adjusting members (20) for adjusting the abutting pressure between the lower roller (19) and the lower roller (3) are arranged at positions below the lower mounting bracket (18) on the frame (1).

4. The die-cutting mechanism according to claim 3, wherein: A mounting seat (27) is fixed at a position on the side of the lower mounting bracket (18) on the frame (1). A through hole (28) penetrating the mounting seat (27) is formed on the side of the mounting seat (27) close to the lower mounting bracket (18). The length direction of the through hole (28) extends in the vertical direction. A locking member (21) passing through the through hole (28) to relatively fix the lower mounting bracket (18) and the mounting seat (27) is arranged on the mounting seat (27).

5. The die-cutting mechanism according to claim 1, characterized in that: There is one lower roller (19) on the lower mounting bracket (18). The axis of the lower roller (19) and the axis of the lower roller (3) are in the same vertical plane. An adjusting member (20) for adjusting the abutting pressure between the lower roller (19) and the lower roller (3) is arranged at a position below the lower mounting bracket (18) on the frame (1). A mounting seat (27) is fixed at a position on the side of the lower mounting bracket (18) on the frame (1). Two through holes (28) arranged side by side and penetrating the mounting seat (27) are provided on the side of the mounting seat (27). The length direction of the through holes (28) extends in the vertical direction. A locking member (21) passing through the through holes (28) to relatively fix the lower mounting bracket (18) and the mounting seat (27) is arranged on the mounting seat (27).

6. The die-cutting mechanism according to claim 4 or 5, characterized in that: The adjusting member (20) is an adjusting bolt in threaded cooperation with the frame (1), and the locking member (21) is a mounting bolt passing through the lower mounting bracket (18) and the mounting seat (27) and a mounting nut cooperating with the mounting bolt.

7. The die-cutting mechanism according to any one of claims 1-5, characterized in that: There are two lower abutting components (5) and they are respectively located at positions close to both ends of the lower roller (3).

8. The die-cutting mechanism according to claim 1, characterized in that: The frame (1) includes two left and right columns (7), a top frame (8) connected to the upper ends of the two columns (7), and a top frame (8) connected to the lower-middle positions of the two columns (7). Vertical and oppositely-positioned track grooves (10) are formed on the two columns (7). Bearing seats (11) that slide vertically along the track grooves (10) are installed in both of the two track grooves (10). Bearings are installed in the bearing seats (11). The two ends of the upper roller (2) are respectively inserted into the bearings of the two bearing seats (11). The die-cutting mechanism includes an upper abutting assembly (4) for abutting against the upper roller (2). The upper abutting assembly (4) includes a compression screw (13) installed on the top frame (8) and threadedly engaged with the top frame (8), and an upper pressing member (14) slidably connected to the track groove (10) and cooperatively pressing the upper roller (2) under the action of the compression screw (13). There are two compression screws (13) which are respectively located at positions on both sides of the top frame (8) close to the columns (7). A handle is fixedly connected to the upper end of each compression screw (13) to facilitate driving the rotation of the compression screw (13). The upper pressing member (14) includes an upper pressing plate (15) located above the bearing seat (11) and straddling the two track grooves (10). At positions close to the track grooves (10) at both ends of the lower surface of the upper pressing plate (15), an upper mounting bracket (16) is installed. Two upper rollers (17) are installed on each upper mounting bracket (16). The two upper rollers (17) on each upper mounting bracket (16) are symmetrically arranged with respect to the vertical plane where the axis of the upper roller (2) is located. The axial directions of the upper rollers (17) are all parallel to the axial direction of the upper roller (2).

9. The die-cutting mechanism according to claim 1, wherein: The driving assembly (6) includes a driving motor (22) installed on the frame (1), a transmission shaft (23) connected to the output shaft of the driving motor (22), a first-stage transmission gear (24) connected to the transmission shaft (23), a lower transmission gear (25) connected to the side surface of the lower roller (3), and an upper transmission gear (26) connected to the side surface of the upper roller (2). The two ends of the transmission shaft (23) pass through two bearings provided on the frame (1). The output shaft transmission gear meshes with the lower transmission gear (25), and the lower transmission gear (25) meshes with the upper transmission gear (26).

10. A die-cutting machine, characterized in that: It includes the die-cutting mechanism according to any one of claims 1-9.

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