Die-cutting machine and split base plate limiting device thereof

Abstract

The utility model relates to the technical field of horizontal flat-pressing flat-die cutting machines, in particular to a split base plate limiting device which is arranged on a cutter plate frame of a die cutting machine, and two base plates are arranged in the cutter plate frame. A containing groove is formed in at least one frame edge of the knife plate frame, and an opening of the containing groove faces one side of the base plate; a horizontally-arranged limiting plate is rotationally installed in the containing groove, the limiting plate is arranged close to the adjacent position of the two base plates, and a first elastic piece is installed between the inner side of the limiting plate and the containing groove. An elastic conveying limiting structure is arranged between the outer side of the limiting plate and the containing groove. Limiting columns capable of vertically moving are movably installed on the frame edges, penetrate through the containing grooves and are matched with the limiting plates. Second elastic pieces are installed between the limiting columns and the frame edges. According to the utility model, the backing plate can be limited when the knife plate frame is turned over, the backing plate is prevented from being unfolded spontaneously, and the operation safety and the equipment stability are improved. Meanwhile, the utility model further discloses a die-cutting machine.

Description

Technical Field

[0001] The utility model relates to the technical field of horizontal flatbed die-cutting machines, in particular to a die-cutting machine and a split pad limiting device thereof. Background Art

[0002] A horizontal flatbed die-cutter is a machine used in the packaging and printing industry. It is primarily used for die-cutting (i.e., cutting to a predetermined outline) and creasing materials such as cardboard, plastic sheets, and metal foil. This machine is distinguished by the horizontal working surfaces of its die frame (where the die is placed) and pressure plate (where pressure is applied to complete the die-cutting process).

[0003] During the operation of a horizontal flatbed die-cutter, a die plate is first prepared according to the die-cutting pattern and fixed to the die frame. Next, the material to be die-cut (such as paper) is placed on the platen and precisely aligned using a positioning device. After the horizontal flatbed die-cutter is started, the control system coordinates the movements of various components, driving the lower platen upward, moving the material upward with it until its surface contacts the die plate. With sufficient pressure, the die cutter penetrates the material, completing the die-cut. The platen then lowers and resets, removing the material and preparing for the next cycle.

[0004] In order to improve the convenience of operation, a split pad is usually used on the die frame in the horizontal flatbed die-cutting machine. When the die frame needs to be turned over for delicate operations such as installing or repairing the die, the split pad will also be turned over. However, if Figure 8 As shown, due to the lack of effective restraints on existing blade frames, the split backing plates often spontaneously fall and unfold due to their own weight after the blade frame is flipped over. This situation not only shortens the backing plate's service life but also poses a potential threat to the operator's personal safety. Therefore, it is particularly important to ensure that the split backing plates are properly supported or locked when used. This can effectively prevent equipment damage and safety hazards caused by the backing plates accidentally falling, while also providing a safer and more reliable working environment for the operator. Utility Model Content

[0005] In view of this, the technical problem to be solved by the present invention is: to provide a die-cutting machine and a split pad limiting device thereof, which can limit the pad when the knife frame is flipped, prevent it from spontaneously opening, and improve operational safety and equipment stability.

[0006] In order to solve the above technical problems, the first technical solution of the utility model is:

[0007] The split pad limiting device is provided on the die plate frame of the die cutting machine, wherein two pads are provided in the die plate frame; a receiving groove is provided on at least one frame edge of the die plate frame, and the opening of the receiving groove faces one side of the pad;

[0008] A horizontally arranged limit plate is rotatably installed in the receiving groove, the limit plate is arranged near the adjacent position of the two pads, and a first elastic member is installed between the inner side of the limit plate and the receiving groove, the first elastic member is used to eject the limit plate to move outward and support the two pads; an ejection limiting structure is provided between the outer side of the limit plate and the receiving groove, the ejection limiting structure is used to limit the limit position of the limit plate to move outward;

[0009] A vertically movable limiting column is movably installed on the frame edge, the limiting column passes through the accommodating groove, the limiting column is adapted to the limiting plate, and the limiting column is used to limit the limiting plate within the accommodating groove; a second elastic member is installed between the limiting column and the frame edge, and the second elastic member is used to connect the limiting column and the limiting plate.

[0010] Preferably, one end of the limiting plate is rotatably mounted in the accommodating groove via a pin, and the other end of the limiting plate is adapted to the limiting end of the limiting column;

[0011] The elastic feeding limiting structure is arranged between the first elastic member and the pin shaft along the horizontal direction.

[0012] Preferably, the ejection limiting structure includes a limiting screw, which is installed on the groove wall of the accommodating groove; and a limiting groove adapted to the limiting screw is provided on the limiting plate.

[0013] Preferably, the limiting column includes a limiting column body and a pressing column integrally formed therewith, and a connection between the limiting column body and the pressing column is located in the accommodating groove.

[0014] Preferably, a stop notch is provided on the limit plate, the stop notch includes an avoidance opening and a stop hole connected thereto, the cross section of the stop hole is a superior arc shape, and the stop hole is adapted to the limit column body;

[0015] The width of the avoidance opening is greater than the diameter of the pressing column and smaller than the diameter of the limiting column body.

[0016] Preferably, the limiting plate is provided with a guiding inclined surface adapted to the limiting column body, and the guiding inclined surface is inclined downward from the avoidance opening and connected to the stop hole.

[0017] Preferably, the top of the pressing column extends upwardly out of the frame edge and is located outside the frame edge; the second elastic member abuts between the bottom of the limiting column body and the frame edge.

[0018] Preferably, a cover plate is installed at the bottom of the frame edge, the second elastic member is accommodated inside the frame edge, and the second elastic member abuts between the cover plate and the limiting column.

[0019] Preferably, the first elastic member and the second elastic member are both springs;

[0020] An elastic cylindrical pin is provided between the limiting plate and the accommodating groove, and the first elastic member is sleeved on the outer side of the elastic cylindrical pin and abuts between the limiting plate and the accommodating groove.

[0021] In order to solve the above technical problems, the second technical solution of the present invention is:

[0022] The die-cutting machine includes a die-cutting unit, which includes a pressing plate and a die-cutting device located above the pressing plate. The die-cutting device is characterized in that the above-mentioned split pad limiting device is provided on the knife plate frame.

[0023] After adopting the above technical solution, the beneficial effects of the utility model are:

[0024] The cam is secured to the base by means of a latch mechanism and adapted to engage the locking cam when the locking cam is engaged with the locking cam, and the locking cam is secured to the base by means of a latch mechanism and adapted to engage the locking cam when the locking cam is engaged.

[0025] A vertically movable limiting column is movably installed on the edge of the frame. The limiting column passes through the receiving slot and is adapted to the limiting plate. The limiting column is used to limit the limiting plate within the receiving slot. A second elastic member is installed between the limiting column and the edge of the frame. The second elastic member is used to connect the limiting column to the limiting plate. The second elastic member is adapted to the limiting column, enabling the limiting column and the limiting plate to be connected. After the limiting plate is accommodated in the receiving slot, the limiting column limits it to prevent it from being ejected by the first elastic member. This facilitates the operation of the horizontal flat-bed die-cutting machine without affecting the use of the pad. When the pressing plate moves upward, the pop-up of the limiting plate will not affect the use of the pad. This ensures that the pressing plate and the knife plate can cooperate with each other to die-cut the material, ensures the normal progress of die-cutting, meets the requirements of normal die-cutting, and improves the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 It is a structural schematic diagram of a die-cutting machine according to an embodiment of the present utility model;

[0028] Figure 2 yes Figure 1 A magnified view of part A in FIG;

[0029] Figure 3 yes Figure 2 Cross-sectional view of the middle limit plate in the open state;

[0030] Figure 4 yes Figure 2 Another cross-sectional view of the middle limit plate in the open state;

[0031] Figure 5 This is a schematic structural diagram of the limiting plate and the limiting column in an embodiment of the present utility model;

[0032] Figure 6 yes Figure 1 The state diagram of the middle split pad after opening;

[0033] Figure 7 yes Figure 1 The state diagram after the middle knife frame is flipped;

[0034] Figure 8 This is a diagram of the state of the blade frame after flipping in the prior art;

[0035] In the picture:

[0036] 1. Knife plate frame; 11. Frame edge; 12. Receiving slot; 13. Pressing plate;

[0037] 2. Pad;

[0038] 3. Limiting plate; 31. Limiting groove; 32. Stopping notch; 321. Avoidance opening; 322. Stopping hole; 323. Guide slope;

[0039] 4. First elastic member; 41. Elastic cylindrical pin;

[0040] 5. Spring feeding limit structure; 51. Limit screw;

[0041] 6. Limiting column; 61. Limiting column body; 62. Pressing column;

[0042] 7. a second elastic member;

[0043] 8. Pin;

[0044] 9. Cover plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] like Figures 1 to 2 As shown in the figure, in this application, the die-cutting machine includes a die-cutting unit, which includes a pressing plate 13 and a die-cutting device located above the pressing plate 13. A split pad limiting device is provided on the die plate frame 1 of the die-cutting device. It should be noted that Figure 1 The knife plate frame 1 in the non-working state is therefore located outside the pressing plate 13 at this time.

[0047] In a horizontal flatbed die-cutter, a horizontally mounted steel plate is mounted on a die frame 1. The die is mounted at the bottom of the plate, while a backing plate 2 is hingedly mounted on the die frame 1 and positioned above the plate. In other words, vertically, the die and backing plate 2 are located on either side of the plate. When delicate work such as installing or repairing the die is required, the die frame 1 must be flipped over, swapping the die and backing plate 2.

[0048] Specifically, the utility model is set in the knife plate frame 1 of the die-cutting machine, and two pads 2 are set in the knife plate frame 1; a receiving groove 12 is opened on at least one frame edge 11 of the knife plate frame 1, and the opening of the receiving groove 12 faces one side of the pad 2.

[0049] Preferably, split pad limiting devices of the same structure are installed on both frame edges 11 to improve the supporting strength of the two pads 2.

[0050] like Figures 1 to 7As shown in the foregoing, in the present application, a horizontally arranged limit plate 3 is rotatably installed in the accommodating groove 12. The limit plate 3 is arranged near the adjacent position of the two pads 2. A first elastic member 4 is installed between the inner side of the limit plate 3 and the accommodating groove 12. The first elastic member 4 is used to eject the limit plate 3 outward and support the two pads 2; a ejection limit structure 5 is provided between the outer side of the limit plate 3 and the accommodating groove 12. The ejection limit structure 5 is used to limit the extreme position of the limit plate 3 moving outward.

[0051] By arranging a limiting plate 3 in the accommodating groove 12, the limiting plate 3 can be popped out and limited to the adjacent position of the two pads 2 under the mutual cooperation of the first elastic member 4 and the elastic limiting structure 5, thereby limiting the two pads 2. After the knife frame 1 is flipped over, the two pads 2 are restricted from falling, preventing the two pads 2 from spontaneously expanding, thereby improving the service life of the pads 2 and the safety of the operator.

[0052] A vertically movable limit column 6 is movably installed on the frame edge 11. The limit column 6 passes through the accommodating groove 12. The limit column 6 is adapted to the limit plate 3. The limit column 6 is used to limit the limit plate 3 within the accommodating groove 12; a second elastic member 7 is installed between the limit column 6 and the frame edge 11. The second elastic member 7 is used to connect the limit column 6 and the limit plate 3.

[0053] The second elastic member 7 is adapted to the limiting column 6, and can realize the connection between the limiting column 6 and the limiting plate 3. After the limiting plate 3 is accommodated in the accommodating groove 12, the limiting column 6 limits it to prevent it from being popped out by the first elastic member 4, so that during the operation of the horizontal flat-bed die-cutting machine, the use of the pad 2 will not be affected, and the use of the pad 2 will not be affected by the pop-up of the limiting plate 3 when the pressing plate 13 moves upward, which ensures that the pressing plate 13 and the knife plate can cooperate with each other to die-cut the material, ensures the normal progress of die-cutting, meets the requirements of normal die-cutting, and improves the stability of the equipment.

[0054] Preferably, the first elastic member 4 and the second elastic member 7 are both springs; an elastic cylindrical pin 41 is provided between the limiting plate 3 and the receiving groove 12, and the first elastic member 4 is sleeved on the outside of the elastic cylindrical pin 41 and abuts between the limiting plate 3 and the receiving groove 12. The provision of the elastic cylindrical pin 41 can prevent the first elastic member 4 from moving during the extension and contraction process. At the same time, the elastic cylindrical pin 41, which is made of an elastic material, can deform along with the movement of the limiting plate 3, preventing interference with the movement of the limiting plate 3 and improving the use effect.

[0055] In the present application, one end of the limit plate 3 is rotatably mounted in the receiving groove 12 via the pin 8, and the other end of the limit plate 3 is adapted to the limit end of the limit column 6. The elastic limit structure 5 is horizontally arranged between the first elastic member 4 and the pin 8, and has a compact structure.

[0056] The spring-feed limiting structure 5 includes a limiting screw 51 mounted on the wall of the receiving slot 12. The limiting plate 3 is provided with a limiting slot 31 that mates with the limiting screw 51. Vertically, the limiting screw 51 is mounted on the lower wall of the receiving slot 12, with the head of the limiting screw 51 positioned within the limiting slot 31. The length of the limiting slot 31 limits the maximum distance the limiting plate 3 can be moved out of the slot. The limiting slot 31 and the limiting screw 51 cooperate to define the maximum position of the limiting plate 3.

[0057] In the present application, the limiting post 6 includes a limiting post body 61 and a pressing post 62 integrally formed therewith, and the connection between the limiting post body 61 and the pressing post 62 is located in the accommodating groove 12 .

[0058] A stop gap 32 is provided on the limiting plate 3, and the stop gap 32 includes an avoidance opening 321 and a stop hole 322 connected thereto. The cross section of the stop hole 322 is an arc shape, and the stop hole 322 is adapted to the limiting column body 61; after the limiting plate 3 compresses the first elastic member 4 into the accommodating groove 12, the limiting column body 61 is clamped in the hole of the stop hole 322, and the limiting column body 61 limits the limiting plate 3; wherein, the width of the avoidance opening 321 is greater than the diameter of the pressing column 62 and smaller than the diameter of the limiting column body 61, and the avoidance opening 321 avoids the pressing column 62, and at the same time, it also restricts the limiting column body 61 from moving out of the stop hole 322 through the avoidance opening 321.

[0059] During the process of the limit plate 3 moving into the accommodating groove 12, in order to facilitate the limit column body 61 to be clamped in the stop hole 322, a guide slope 323 adapted to the limit column body 61 is provided on the limit plate 3. The guide slope 323 is tilted downward from the avoidance opening 321 to connect to the stop hole 322. The connection between the limit column body 61 and the pressing column 62 is chamfered. During the movement of the limit plate 3, the guide slope 323 generates downward pressure on the limit column body 61, compressing the second elastic member 7 below, causing the limit column body 61 to move downward, and finally extending into the stop hole 322 under the elastic force of the second elastic member 7, thereby limiting the limit plate 3.

[0060] In order to facilitate pressing the limiting column 6 , the top of the pressing column 62 extends upward and is located outside the frame edge 11 ; the second elastic member 7 abuts between the bottom of the limiting column body 61 and the frame edge 11 .

[0061] In the present application, in order to facilitate the installation of the second elastic member 7 and the limiting column 6, a cover plate 9 is installed at the bottom of the frame edge 11, the second elastic member 7 is accommodated inside the frame edge 11, and the second elastic member 7 abuts between the cover plate 9 and the limiting column 6.

[0062] The purpose of this application is to prevent the backing plate 2 from freely unfolding after the blade frame 1 is flipped over. Therefore, this application needs to limit the backing plate 2 before the blade frame 1 is flipped over. Specifically, by manually pressing the pressing column 62, the limiting column 6 moves down, and the limiting column body 61 moves down and away from the stop hole 322, so that the limiting column 6 is separated from the limiting plate 3. The separated limiting plate 3 pops out toward the backing plate 2 under the elastic force of the first elastic member 4. After popping out, the limiting screw 51 cooperates with the limiting groove 31 to be located adjacent to the two backing plates 2, that is, one limiting plate 3 limits the two backing plates 2 at the same time, preventing the two backing plates 2 from freely unfolding after the blade frame 1 is flipped over. After the blade frame 1 is flipped over to repair the blade, the blade frame 1 is flipped back to restore it to its original state. Specifically, the limit plate 3 is pressed toward the outside of the pad 2. After the guide slope 323 abuts against the limit column body 61 and continues to be pressed, the limit column body 61 moves downward under the action of the guide slope 323, compressing the second elastic member 7 until the limit column body 61 moves to the bottom of the stop hole 322. At this time, the second elastic member 7 releases the elastic force, pushing the limit column body 61 into the stop hole 322 to limit the limit plate 3.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A split pad limiting device is provided on the die plate frame of the die cutting machine, wherein two pads are provided in the die plate frame; the device is characterized in that: A receiving groove is provided on at least one edge of the knife plate frame, and the opening of the receiving groove faces one side of the pad; A horizontally arranged limit plate is rotatably installed in the receiving groove, the limit plate is arranged near the adjacent position of the two pads, and a first elastic member is installed between the inner side of the limit plate and the receiving groove, the first elastic member is used to eject the limit plate to move outward and support the two pads; an ejection limiting structure is provided between the outer side of the limit plate and the receiving groove, the ejection limiting structure is used to limit the limit position of the limit plate to move outward; A vertically movable limiting column is movably installed on the frame edge, the limiting column passes through the accommodating groove, the limiting column is adapted to the limiting plate, and the limiting column is used to limit the limiting plate within the accommodating groove; a second elastic member is installed between the limiting column and the frame edge, and the second elastic member is used to connect the limiting column and the limiting plate.

2. The split backing plate limiting device according to claim 1, characterized in that: One end of the limiting plate is rotatably mounted in the accommodating groove via a pin, and the other end of the limiting plate is adapted to the limiting end of the limiting column; The elastic feeding limiting structure is arranged between the first elastic member and the pin shaft along the horizontal direction.

3. The split backing plate limiting device according to claim 1, characterized in that: The ejection limiting structure includes a limiting screw, which is installed on the groove wall of the accommodating groove; the limiting plate is provided with a limiting groove that is compatible with the limiting screw.

4. The split backing plate limiting device according to claim 1, characterized in that: The limiting column includes a limiting column body and a pressing column integrally formed therewith, and a connection between the limiting column body and the pressing column is located in the accommodating groove.

5. The split backing plate limiting device according to claim 4, characterized in that: The limit plate is provided with a stop notch, the stop notch including an avoidance opening and a stop hole connected thereto, the cross section of the stop hole being in the shape of a superior arc, and the stop hole being adapted to the limit column body; The width of the avoidance opening is greater than the diameter of the pressing column and smaller than the diameter of the limiting column body.

6. The split backing plate limiting device according to claim 5, characterized in that: The limiting plate is provided with a guiding inclined surface adapted to the limiting column body, and the guiding inclined surface is inclined downward from the avoidance opening and connected to the stop hole.

7. The split backing plate limiting device according to claim 4, characterized in that: The top of the pressing column extends upwardly out of the frame edge and is located outside the frame edge; the second elastic member abuts between the bottom of the limiting column body and the frame edge.

8. The split backing plate limiting device according to claim 1, characterized in that: A cover plate is installed at the bottom of the frame edge, the second elastic member is accommodated in the interior of the frame edge, and the second elastic member abuts between the cover plate and the limiting column.

9. The split backing plate limiting device according to claim 1, characterized in that: The first elastic member and the second elastic member are both springs; An elastic cylindrical pin is provided between the limiting plate and the accommodating groove, and the first elastic member is sleeved on the outer side of the elastic cylindrical pin and abuts between the limiting plate and the accommodating groove.

10. A die-cutting machine comprising a die-cutting unit, wherein the die-cutting unit comprises a pressing plate and a die-cutting device located above the pressing plate, characterized in that: The knife plate frame of the die-cutting device is provided with a split pad limiting device as described in any one of claims 1 to 9.

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