Discharging frame of die-cutting machine

Abstract

The utility model relates to a discharging frame of a die-cutting machine, which comprises a machine frame, the machine frame comprises a left wall plate and a right wall plate, a lifting mechanism is further arranged on the machine frame, the lifting mechanism comprises a lifting swing arm and a swing arm driving device, the lifting swing arm and the swing arm driving device are distributed in a left-right corresponding mode, and the swing arm driving device is in transmission connection with the lifting swing arm. The left lifting swing arm and the right lifting swing arm are correspondingly arranged on the outer side of the left wall plate and the outer side of the right wall plate respectively, the upper portion of the front side of the left wall plate and the upper portion of the front side of the right wall plate are further provided with shaft supporting edges used for being connected with the shaft placing notches in a matched mode, and the shaft supporting edges are provided with reel unwinding in-position positions. A shaft locking limiting device is further arranged at the unwinding in-place position of the winding shaft. The unreeling device is relatively convenient to operate, materials can be prepared on the lifting swing arm which swings downwards in the unreeling process, the unreeling device is more efficient and convenient to use, and when reels are replaced, after the prepared unreeling shaft (containing reel materials) placed on the lifting swing arm is lifted in place, the unreeling shaft is moved to the reel unreeling in-place position, and then the reel is locked and limited by the shaft locking and limiting device.

Description

Technical Field

[0001] This utility model relates to the supporting structure of a die-cutting machine, and in particular to the feeding rack of a die-cutting machine. Background Technology

[0002] Die-cutting machines are used to die-cut materials such as paper or film. For continuous roll materials (i.e., roll stock), the unwinding rack assists in feeding the main body of the die-cutting machine for die-cutting. After the continuous roll material is used up, it needs to be replaced with a new roll for feeding. Convenient roll replacement operations effectively improve production efficiency. Additionally, the tension of the material needs to be controlled during the unwinding process to effectively ensure the die-cutting quality. Furthermore, the entire roll material needs to be positioned between the left and right side panels of the unwinding rack, and the width of the roll material is limited by the width of the unwinding rack (the distance between the left and right side panels). Also, continuous roll material may experience material breaks during use; if not detected in time, this will affect normal operation and production. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a feeding rack for a die-cutting machine that facilitates roll changing.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a feeding rack for a die-cutting machine, including a frame, the frame including a left wall plate and a right wall plate, and a lifting mechanism on the frame, the lifting mechanism including lifting swing arms and swing arm driving devices arranged correspondingly on the left and right sides, the swing arm driving device being connected to the lifting swing arms in a transmission manner, and the lifting swing arms being provided with a feeding slot for placing the unloading spool, characterized in that: the left and right lifting swing arms are respectively arranged on the outer side of the left wall plate and the right wall plate, and the upper front side of the left wall plate and the right wall plate are also provided with a spool support edge for cooperating with and connecting the feeding slot, the spool support edge having a spool unloading and positioning position, and a spool locking and limiting device being provided at the spool unloading and positioning position.

[0005] The following optimizations or supplementary explanations can be made to the above technical solutions.

[0006] For example, the frame is equipped with a support shaft, with the two ends of the support shaft located on the left and right wall panels respectively. The lifting swing arm is connected to the support shaft, and the swing arm drive device includes a cylinder or a hydraulic cylinder.

[0007] The unwinding shaft has shaft heads at both ends for placement in the unwinding groove.

[0008] The unwinding shaft is equipped with a left bearing and a right bearing. The left bearing is matched with the left side of the support shaft edge, and the right bearing is matched with the right side of the support shaft edge.

[0009] For example, the unwinding shaft is an air shaft with an air nozzle on its shaft body. The shaft body is located on the central core of the air shaft, and the left and right bearings are sleeved on the central core. The outer ring of the left bearing is fitted with a positioning wheel with a positioning annular groove. The support shaft edge on the left wall plate matches the positioning annular groove of the positioning wheel. The right wall plate includes a wall plate body and an additional side plate. The additional side plate is located on the outside of the wall plate body, and the support shaft edge on the right wall plate is located on the additional side plate. The upper front part of the wall plate body is provided with a shaft clearance notch, and the air nozzle corresponds to the shaft clearance notch.

[0010] In addition, the frame is equipped with a tension control device, which includes a magnetic powder brake and a brake gear mechanism. A driven gear is provided on the unwinding shaft. The magnetic powder brake is connected to the brake gear mechanism. The driven gear on the unwinding shaft at the unwinding position of the unwinding shaft meshes with the brake gear mechanism. The tension control device is located on the outside of the left wall panel.

[0011] In addition, the frame is equipped with a material breakage detection device, which includes a detection swing arm, a detection photoelectric sensor, and a pressing component. The detection swing arm is positioned above the unwinding position of the roll, with its rear end serving as the swing axis. The pressing component is located at the front of the detection swing arm, and the detection photoelectric sensor is located in the middle of the detection swing arm. For example, the rear end of the detection swing arm can be hinged to a support shaft mounted on the frame, and the pressing component can be a roll pressure roller.

[0012] For example, a locking shaft limiting device includes a latch and a locking shaft driving component, which are connected in a driving connection. The locking shaft limiting device is connected to the frame and also includes a limiting recess located on the rear side of the support shaft edge. The limiting recess is mounted on the frame. Alternatively, a lifting latch can be used, and the locking shaft driving component can be a locking shaft lifting actuator. The latch is positioned in front of the limiting recess, and the latch, the limiting recess, and the lower support shaft edge cooperate to form a matching space for the unloading and rewinding of the reel.

[0013] The beneficial effects of this utility model are as follows: the feeding rack of this die-cutting machine is relatively easy to operate. During the unwinding process, material can be prepared on the lower lifting arm, which is more efficient and convenient. When changing rolls, after the unwinding shaft (including the roll material) prepared on the lifting arm is lifted into position, the unwinding shaft is moved to the roll unwinding position, and then locked by the locking shaft limiting device. Material preparation is more convenient when the lower swing of the lifting arm is in a low position. Attached Figure Description

[0014] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the structure after removing the coil material.

[0017] Figure 3 for Figure 1 A structural diagram from another angle.

[0018] Figure 4 for Figure 3 A schematic diagram of the structure after removing the coil material.

[0019] Figure 5 for Figure 4 A diagram showing the unwinding spool after it has been removed.

[0020] Figure 6 for Figure 4 Another structural diagram from a different angle.

[0021] Figure 7 This is a schematic diagram of the unwinding shaft in this utility model.

[0022] Figure 8 This is a cross-sectional side view of the unwinding shaft portion of the present invention.

[0023] In the picture:

[0024] 1. Frame; 11. Left wall panel; 12. Right wall panel; 13. Support shaft edge; 14. Reel unwinding position; 15. Wall panel body; 16. Additional side panel; 17. Shaft clearance notch;

[0025] 2. Lifting mechanism; 21. Lifting swing arm; 22. Swing arm drive device; 23. Shaft placement slot; 24. Support shaft;

[0026] 3. Lock shaft limiting device; 31. Locking latch; 32. Lock shaft driving component; 33. Limiting notch;

[0027] 4. Unwinding shaft; 40. Air shaft; 41. Shaft head; 43. Left bearing; 44. Right bearing; 45. Air nozzle; 46. Central spindle; 47. Positioning wheel; 48. Positioning annular groove; 49. Shaft body;

[0028] 5. Tension control device; 50. Magnetic powder brake; 51. First gear; 52. Second gear; 53. Braking gear mechanism; 54. Driven gear;

[0029] 6. Material breakage detection device; 61. Detection swing arm; 62. Detection photoelectric eye; 63. Material pressing component; 64. Support shaft. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] Referring to the accompanying drawings, the feeding rack of the die-cutting machine in this embodiment includes a frame 1. The frame 1 includes a left wall panel 11 and a right wall panel 12 (their bodies typically adopt a side-mounted upright structure). The frame 1 is also equipped with a lifting mechanism 2, which includes lifting swing arms 21 and swing arm drive devices 22 arranged correspondingly on the left and right sides. The swing arm drive devices 22 are connected to the lifting swing arms 21 in a transmission manner. The swing arm drive devices 22 cooperate to drive the lifting swing arms 21 to swing up and down. When swinging up, it can lift and raise the machine, and when swinging down, it can lower and lower the machine. The lifting swing arms 21 are provided with a shaft placement slot 23 for placing the unwinding shaft 4. The shaft placement slot 23 can be set to be a rearward opening (in the upper swing position). The left and right lifting swing arms 21 are respectively arranged on the outside of the left wall panel 11 and the right wall panel 12, that is, the left lifting swing arm 21 is on the left side of the left wall panel 11, and the right lifting swing arm 21 is on the right side of the right wall panel 12.

[0032] The upper front side of the left wall panel 11 and the right wall panel 12 is also provided with a shaft support edge 13. The shaft support edge 13 is used to connect with the unwinding groove 23 so that after the lifting arm 21 is raised into position (after the unwinding shaft 4 is raised), the unwinding shaft 4 can disengage from the unwinding groove of the lifting arm 21 and enter the shaft support edge 13, which will then connect and support the unwinding shaft 4.

[0033] The support shaft edge 13 has a roll unwinding position 14 (i.e., the unwinding shaft 4 is in the position when unwinding is working). The roll unwinding position 14 is also provided with a shaft locking limit device 3. The shaft locking limit device 3 cooperates to lock and limit the unwinding shaft 4 in the roll unwinding position so as to stabilize the unwinding.

[0034] Its working principle is as follows: when the lifting arm 21 is in the downward swing state, both ends of the unwinding shaft 4 (including the rolled material) can be placed in the unwinding groove 23 respectively (at this time, the unwinding groove faces upward); then, the lifting arm 21 swings upward, lifting the unwinding shaft 4. After the lifting arm 21 swings upward to the position, the unwinding shaft 4 (which can be done manually or by using inertia) can be moved to the support shaft edge 13. After the unwinding shaft 4 on the support shaft edge 13 moves to the unwinding position 14, the locking shaft limiting device 3 can lock and limit the unwinding shaft 4. Afterwards, the lifting arm 21 is lowered to prepare materials and load another unwinding shaft 4 containing coiled material (the coiled material can be pushed by a trolley, etc.). After the coiled material on the unwinding shaft 4 at the unwinding position 14 (on the edge of the support shaft 13) is used up, the unwinding shaft 4 can be directly removed and loaded onto another coiled material to wait. Then the lifting arm 21 is raised again to lift the unwinding shaft 4 containing coiled material, and this operation is repeated.

[0035] The feeding rack of this die-cutting machine is relatively easy to operate. During the unwinding process, materials can be prepared on the lower lifting arm 21, making it more efficient and convenient. When changing rolls, the unwinding shaft 4 (including the roll material) placed on the lifting arm 21 is lifted into position, and then the unwinding shaft 4 is moved to the roll unwinding position 14, where it is locked by the locking shaft limiting device 3. Material preparation is more convenient when the lower part of the lifting arm 21 is in a low position.

[0036] Based on the above embodiments, the following optimizations or further explanations can be made.

[0037] For example, the frame 1 is equipped with a support shaft 24, with its two ends located on the left wall plate 11 and the right wall plate 12 respectively. The lifting swing arm 21 is connected to the support shaft 24. The support shaft 24 can serve as a synchronous shaft, allowing for better synchronization of the lifting swing arms 21 on both sides during operation, resulting in a more stable lifting effect. The support shaft 24 can also be used as the swing axis of the lifting swing arm 21, coordinating with the lifting swing arm 21 to swing. The swing arm drive device 22 includes a cylinder or a hydraulic cylinder.

[0038] For example, the unwinding shaft 4 has shaft heads 41 at both ends for placement in the unwinding shaft slot 23. The shaft heads 41 can be directly taken from the end position of the unwinding shaft 4 body; or additional mounting blocks (in the form of rotating bodies) can be added to the end position, which is more versatile and can match unwinding shafts 4 of different specifications; the mounting blocks that serve as shaft heads 41 can be knobs, which are screwed onto both ends of the unwinding shaft 4 for assembly; or sleeves can be used, which are fastened to both ends of the unwinding shaft 4 with fasteners.

[0039] In addition, the unwinding shaft 4 may also be equipped with a left bearing 43 and a right bearing 44. The left bearing 43 corresponds to the left side of the support shaft edge 13, and the right bearing 44 corresponds to the right side of the support shaft edge 13. This structure not only allows the unwinding shaft 4 to roll when moving on the support shaft edge 13, but also supports the unwinding shaft 4 to rotate smoothly on the support shaft edge 13. The support shaft edge 13 can be set as a horizontal straight edge.

[0040] For example, the unwinding shaft 4 uses an air shaft 40. An air nozzle 45 is provided on the shaft body 49 of the air shaft 40. The shaft body 49 is located on the central core shaft 46 of the air shaft 40. A left bearing 43 and a right bearing 44 are sleeved on the central core shaft 46. A positioning wheel 47 with a positioning annular groove 48 is sleeved on the outer ring of the left bearing 43. If the positioning annular groove 48 is a V-shaped annular groove, the support shaft edge 13 on the left wall plate 11 cooperates with the positioning annular groove 48 of the positioning wheel 47. When the positioning wheel 47 moves on the support shaft edge 13 of the left wall plate 11, it can be positioned by utilizing the positioning annular groove 48 on the support shaft edge 13, allowing the axial position of the unwinding shaft 4 to smoothly reach the preset position. Additionally, the right wall plate 12 includes a wall plate body 15 and an additional side plate 16. The additional side plate 16 is located on the outside (i.e., the right side) of the wall plate body 15. The support edge 13 on the wall panel 12 is located on the additional side plate 16. The upper front part of the wall panel body 15 is provided with a shaft clearance notch 17. The air nozzle 45 corresponds to the shaft clearance notch 17. That is, when the unwinding shaft 4 (air expansion shaft 40) is in place, the air nozzle 45 is located at the shaft clearance notch 17. This allows for higher utilization of the air expansion shaft 40 when the distance between the wall panel bodies 15 of the left wall panel 11 and the right wall panel 12 is constant. By positioning the air nozzle 45 at the shaft clearance notch 17, a relatively long air expansion shaft 40 with a shaft 49 can be selected. The overall width of the roll material on the air expansion shaft 40 can be filled as much as possible between the wall panel bodies 15 of the left wall panel 11 and the right wall panel 12, avoiding the limitation of the maximum width of the roll material on the air expansion shaft 40 between the wall panel bodies 15 of the left wall panel 11 and the right wall panel 12 due to the position of the air nozzle 45.

[0041] The frame 1 is also equipped with a tension control device 5, which includes a magnetic powder brake 50 and a brake gear mechanism 53. A driven gear 54 is provided on the unwinding shaft 4. The magnetic powder brake 50 is connected to the brake gear mechanism 53, and the magnetic powder brake 50 can cooperate with the brake gear mechanism 53 to brake. The brake gear mechanism 53 can be configured with corresponding gears as needed. For example, in the figure, the brake gear mechanism 53 includes a first gear 51 and a second gear 52 that mesh with each other. The first gear 51 is connected to the magnetic powder brake 50, and the second gear 52 meshes with the driven gear 54. When the unwinding shaft 4 is installed, the driven gear 54 on the unwinding shaft 4 at the unwinding position 14 meshes with the brake gear mechanism 53 (such as the second gear 52), thereby allowing the unwinding tension of the unwinding shaft 4 to be regulated. The tension control device 5 can be located on the outside (i.e., the left side) of the left wall panel 11.

[0042] In addition, the frame 1 is also equipped with a material breakage detection device 6. The material breakage detection device 6 includes a detection swing arm 61, a detection photoelectric eye 62, and a pressing component 63. The detection swing arm 61 is arranged on the upper side of the unwinding position 14 of the roll. The rear part of the detection swing arm 61 is the swing axis. The pressing component 63 is arranged at the front part of the detection swing arm 61. The detection photoelectric eye 62 is arranged in the middle of the detection swing arm 61 (that is, the position between the front and the rear, and the detection effect is better if it is closer to the front). The roll material on the unwinding shaft 4 is unwound and outputs material backward. The detection photoelectric eye 62 on the detection swing arm 61 can detect the material output below. When the material breaks, the detection photoelectric eye 62 will detect the breakage signal for subsequent operation. In this structure, the pressing component 63 at the front of the detection swing arm 61 can press against the upper side of the coil (outer ring), and the detection swing arm 61 is supported by the coil. During the unwinding process on the unwinding shaft 4, as the coil diameter decreases, the detection swing arm 61 will also swing and descend, causing the detection photoelectric eye 62 on the detection swing arm 61 to descend as well. The distance between the detection photoelectric eye 62 and the output material of the coil below (as the coil diameter decreases) is always kept relatively close, avoiding the problem of the photoelectric eye's detection accuracy being affected by the decrease in coil diameter and the increase in the distance between the detection photoelectric eye 62 and the output material during the unwinding process. This structure does not have high requirements for the detection photoelectric eye 62, and a photoelectric eye with low cost and relatively low accuracy requirements can be used to meet the requirements. For example, the rear of the detection swing arm 61 is hinged to the support shaft 64, which is set on the frame 1. The detection swing arm 61 swings around the support shaft 64. The pressing component 63 adopts a coil pressing roller. Under the condition that the material breakage detection device 6 does not easily interfere with the normal unwinding of the coil, the detection swing arm 61 swings smoothly with the change of the coil diameter.

[0043] The locking shaft limiting device 3 includes a latch 31 and a locking shaft driving component 32. The latch 31 and the locking shaft driving component 32 (such as a cylinder or motor) are connected by a transmission. The locking shaft limiting device 3 is connected to the frame 1. For example, the locking shaft limiting device 3 can be configured on the upper side of the support shaft edge 13. The locking shaft driving component 32 cooperates to drive the latch 31 to lock and unlock the unwinding shaft 4. In addition, the locking shaft limiting device 3 also includes a limiting notch 33. The limiting notch 33 is located on the rear side of the support shaft edge 13. The limiting notch 33 is set on the frame 1 (such as its left wall plate 11 and right wall plate 12). The limiting notch 33 is used to stabilize and limit the unwinding shaft 4 on the rear side, and cooperates to lock the unwinding shaft 4 in the limited position. For example, the latch 31 is a lifting latch, the locking shaft drive component 32 is a locking shaft lifting actuator, the latch 31 is arranged on the front side of the limiting recess 33, the latch 31, the limiting recess 33 and the lower side support shaft edge 13 cooperate to form a matching space for the unwinding shaft to be placed, ensuring that the unwinding shaft 4 is in a stable position for unwinding, the latch 31 descends to be in the locked state, and the latch 31 rises to be in the unlocked state.

Claims

1. A material feeding rack of a die cutting machine, comprising a frame (1), the frame (1) comprising a left wall plate (11) and a right wall plate (12), the frame (1) further comprising a lifting mechanism (2), the lifting mechanism (2) comprising left and right lifting swing arms (21) and swing arm driving devices (22) arranged correspondingly, the swing arm driving devices (22) being in transmission connection with the lifting swing arms (21), the lifting swing arms (21) being provided with shaft slot openings (23) for placing a feeding shaft (4), characterized in that: the left and right lifting swing arms (21) are arranged correspondingly on the outer sides of the left wall plate (11) and the right wall plate (12) respectively, the left wall plate (11) and the right wall plate (12) are further provided with shaft supporting edges (13) on the upper parts of the front sides thereof for matching the shaft slot openings (23), the shaft supporting edges (13) are provided with shaft positioning devices (3) at shaft feeding positions (14). The frame (1) is provided with a supporting shaft (24), the two ends of the supporting shaft (24) are arranged on the left wall plate (11) and the right wall plate (12) respectively, and the lifting swing arms (21) are connected to the supporting shaft (24). The swing arm driving devices (22) comprise cylinders or oil cylinders.

2. The feeder of a die cutting machine according to claim 1, characterized in that: The feeding shaft (4) is provided with shaft heads (41) at the two ends thereof for being placed in the shaft slot openings (23). The feeding shaft (4) is further provided with a left bearing (43) and a right bearing (44), 3. The feeder of a die cutting machine according to claim 1, characterized in that: The left bearing (43) is matched with the left shaft supporting edge (13) correspondingly, 4. The feeder of a die cutting machine according to claim 3, characterized in that: The right bearing (44) is matched with the right shaft supporting edge (13) correspondingly. The feeding shaft (4) is a gas expansion shaft (40), the shaft body (49) of the gas expansion shaft (40) is provided with a gas nozzle (45), the shaft body (49) is located on a middle shaft (46) of the gas expansion shaft (40), the left bearing (43) and the right bearing (44) are sleeved on the middle shaft (46), The outer ring of the left bearing (43) is sleeved with a positioning wheel (47) provided with a positioning annular groove (48), 5. The feeder of a die cutting machine according to claim 4, characterized in that: The shaft supporting edge (13) on the left wall plate (11) is matched with the positioning annular groove (48) of the positioning wheel (47), The right wall plate (12) comprises a wall plate body (15) and an additional side plate (16), the additional side plate (16) is located on the outer side of the wall plate body (15), the shaft supporting edge (13) on the right wall plate (12) is located on the additional side plate (16), and the front upper part of the wall plate body (15) is provided with a shaft avoiding gap (17), the gas nozzle (45) is matched with the shaft avoiding gap (17). The frame (1) is further provided with a tension control device (5), the tension control device (5) comprises a magnetic powder brake (50) and a brake gear mechanism (53), the feeding shaft (4) is provided with a driven gear (54), the magnetic powder brake (50) is in transmission connection with the brake gear mechanism (53), and the driven gear (54) on the feeding shaft (4) at the shaft feeding position (14) is in meshing connection with the brake gear mechanism (53). The tension control device (5) is located on the outer side of the left wall plate (11).

6. The feeder of a die cutting machine according to claim 1, characterized in that: ​ ​ 7. The feeder of a die cutting machine according to claim 1, characterized in that: The rack (1) is further provided with a broken material detection device (6), the broken material detection device (6) comprising a detection swing arm (61), a detection photoelectric eye (62) and a material pressing component (63), the detection swing arm (61) being arranged on the upper side of the unwinding position (14) of the reel, the rear part of the detection swing arm (61) being the swing axis, the material pressing component (63) being arranged at the front part of the detection swing arm (61), and the detection photoelectric eye (62) being arranged at the middle part of the detection swing arm (61).

8. The material unwinding rack of the die cutting machine according to claim 7, characterized in that: the rear part of the detection swing arm (61) is hinged to a support shaft (64) arranged on the rack (1), the material pressing component (63) is a material pressing roller.

9. The feeder of a die cutting machine according to claim 1, characterized in that: The lock shaft limiting device (3) comprises a lock latch (31) and a lock shaft driving component (32), the lock latch (31) and the lock shaft driving component (32) being in transmission connection, the lock shaft limiting device (3) being connected to the rack (1), the lock shaft limiting device (3) further comprising a limiting notch (33), the limiting notch (33) being located at the rear side of the shaft supporting edge (13), and the limiting notch (33) being arranged on the rack (1).

10. The magazine of the die cutting machine according to claim 9, characterized in that: The lock latch (31) is a lifting latch, the lock shaft driving component (32) is a lock shaft lifting execution component, the lock latch (31) being arranged at the front side of the limiting notch (33), and the lock latch (31) cooperating with the limiting notch (33) and the shaft supporting edge (13) at the lower side to form a matching space for placing the unwinding reel.

Images