Die cutting mechanism for label paper processing

Abstract

The utility model discloses a die cutting mechanism for label paper processing, which comprises a right-angle frame, an unwinding shaft and a winding shaft, the unwinding shaft and the winding shaft are symmetrically and rotatably mounted at two ends of the surface of the right-angle frame, and a belt wheel driving unit for driving the unwinding shaft and the winding shaft to rotate synchronously is mounted on the back of the right-angle frame on one side of the unwinding shaft. A die cutting table is fixed to the portion, above the unwinding shaft and the winding shaft, of the surface of the right-angle machine frame, a paper tape anti-jumping structure is installed on one side of the top end of the die cutting table, and a lifting type cam die cutting assembly is arranged at the portion, on one side of the paper tape anti-jumping structure, of the top end of the die cutting table. A mechanical structure is adopted to control the height of the die-cutting knife and the up-and-down die-cutting frequency, continuous die-cutting action is achieved, the die-cutting pressure can be adjusted and can be accurately adjusted according to different label paper materials and requirements, die-cutting quality and consistency are ensured, frequent starting and stopping actions of a laser die-cutting head in the prior art are not needed, and the die-cutting efficiency is improved. Abrasion of equipment parts is reduced, and the service life of the die cutting mechanism is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of die-cutting mechanisms, in particular to a die-cutting mechanism for label paper processing. Background Art

[0002] The die-cutting device for label paper is a crucial equipment in the label paper processing process. Its main function is to cut the label paper into the required shape and size, or to cut a virtual mark on the label paper, so as to facilitate the user to tear the label. The die-cutting device is usually composed of a die-cutting tool, a die-cutting mechanism and a control system. The die-cutting tool is the core component of the die-cutting device, responsible for the actual cutting work, and is usually composed of a blade, a die and a die-cutting tool holder. The die-cutting mechanism is the driving part of the die-cutting device, which provides cutting force and motion trajectory through a combination of a motor, a transmission device and a guide rail. The control system is the intelligent core of the die-cutting device, which is composed of a PLC controller, a touch screen operation interface and sensors, and is used to control and adjust various parameters in the die-cutting process;

[0003] For example, a die-cutting mechanism for label paper processing disclosed in the authorization announcement number CN218557378U includes a base plate, a conveying frame, a gantry, a workbench and a laser die-cutting head, wherein a workbench is installed at the middle position of the top of the base plate, and gantry frames are arranged on both sides of the top of the workbench, a conveying frame is installed on one side of the top of the base plate, and a winding mechanism is installed on the other side of the top of the base plate, conveying rollers are evenly installed at the top and bottom of the conveying frame, and both ends of the conveying rollers are connected to the conveying frame through connecting plates, and the device passes through the laser die cutting head. Pressure plates are respectively arranged on both sides of the cutting head, and the pressure plates are elastically connected to the mounting plates through guide pins and compression springs, so as to effectively press label papers of different thicknesses and flatten them. However, this technical solution mainly utilizes the laser die-cutting head to realize die-cutting action on label paper during use. Since there are many die-cutting marks on the surface of label paper, the working frequency of the laser die-cutting head is relatively high, and it is necessary to start, stop and cycle the machine continuously. Frequent start and stop will accelerate the wear of equipment components, especially the loss of key components such as lasers, thereby shortening the service life of the die-cutting equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a die-cutting mechanism for label paper processing, in which a pulley drive unit enables the reeling shaft and the unreeling shaft to rotate synchronously in the same direction, and a lifting cam die-cutting assembly with adjustable rotation speed and die-cutting pressure is used to complete the die-cutting and virtual mark production of the label paper, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a die-cutting mechanism for processing label paper, comprising a right-angle frame and an unwinding shaft and a rewinding shaft symmetrically rotatably mounted at both ends of the right-angle frame surface, a pulley driving unit for driving the unwinding shaft and the rewinding shaft to rotate synchronously is mounted on the back of the right-angle frame on one side of the unwinding shaft, a die-cutting table is fixed on the surface of the right-angle frame above the unwinding shaft and the rewinding shaft, and a paper tape anti-jumping structure is mounted on one side of the top of the die-cutting table, a lifting cam die-cutting assembly is arranged on the top of the die-cutting table on one side of the paper tape anti-jumping structure, and the The lifting cam die-cutting assembly includes a gantry installed on one side of the top of the die-cutting table, a screw lifting module installed inside the gantry, an I-beam table installed on the movable end of the screw lifting module, and a slide seat slidably installed on the surface of the I-beam table, the surface of the I-beam table is installed with an eccentric wheel reciprocating die-cutting structure for driving the slide seat to reciprocate and lift, a die-cutting knife is fixed to the bottom end of the slide seat, a PLC control panel is installed on one side of the surface of the right-angle frame, and the output end of the PLC control panel is electrically connected to the input end of the pulley drive unit, the screw lifting module, and the eccentric wheel reciprocating die-cutting structure.

[0006] Preferably, the pulley drive unit includes a servo motor installed on one side of the back of the right-angle frame, a pulley transmission structure 1 installed on the output end of the servo motor, and a pulley transmission structure 2 installed on one end of the surface of the winding shaft and the unwinding shaft. The output end of the servo motor drives the unwinding shaft to rotate through the pulley transmission structure 1.

[0007] Preferably, the pulley transmission structure 1 includes a driving wheel installed on the output end of the servo motor and a driven wheel fixed to one end of the surface of the unwinding shaft, and a belt is wound between the driving wheel and the driven wheel.

[0008] Preferably, a limiting plate made of stainless steel is fixed to one side of the top of the die-cutting table.

[0009] Preferably, the paper tape anti-jump structure includes an axle seat installed on one side of the top end of the die-cutting table, and a steel roller rotatably installed on the outer wall of one side of the axle seat.

[0010] Preferably, a roll material support structure is provided on both sides of the back of the right-angle frame, and the roll material support structure includes a support arm hingedly mounted on the back of the right-angle frame, and a sponge roller rotatably mounted on the outer wall of one side of the support arm and parallel to the extension direction of the unwinding shaft and the winding shaft.

[0011] Preferably, the eccentric wheel reciprocating die-cutting structure includes a motor installed on the back of the I-beam, an eccentric wheel installed on the output end of the motor, and a connecting rod unit hinged on one side of the eccentric wheel surface, and the bottom end of the connecting rod unit is hinged to the top end of the slide seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the die-cutting mechanism for label paper processing is provided with a pulley drive unit and a lifting cam die-cutting assembly and other structures that cooperate with each other, so that the label paper tape is conveyed and wound onto a winding shaft, and the lifting cam die-cutting assembly adopts a mechanical structure to control the height of the die-cutting knife and the up and down die-cutting frequency to achieve continuous die-cutting action, and because the die-cutting pressure is adjustable, it can be accurately adjusted according to different label paper materials and requirements to ensure the die-cutting quality and consistency, and because the frequent start and stop of the previous laser die-cutting head is not required, the wear of equipment parts is reduced and the service life of the die-cutting mechanism is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0015] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0017] In the figure: 1. right-angle frame; 2. unwinding shaft; 3. rewinding shaft; 4. coil support structure; 401. support arm; 402. sponge roller; 5. pulley drive unit; 501. servo motor; 502. pulley transmission structure one; 503. pulley transmission structure two; 6. die-cutting table; 7. limit plate; 8. paper tape anti-jump structure; 801. shaft seat; 802. steel roller; 9. PLC control panel; 10. lifting cam die-cutting assembly; 1001. gantry; 1002. I-beam table; 1003. slide seat; 1004. eccentric wheel reciprocating die-cutting structure; 1005. die-cutting knife; 1006. screw lifting module. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4The utility model provides an embodiment: a die-cutting mechanism for label paper processing, comprising a right-angle frame 1 and an unwinding shaft 2 and a rewinding shaft 3 symmetrically rotatably mounted at both ends of the surface of the right-angle frame 1, a pulley driving unit 5 for driving the unwinding shaft 2 and the rewinding shaft 3 to rotate synchronously is mounted on the back of the right-angle frame 1 on one side of the unwinding shaft 2, and the rotary power of the pulley driving unit 5 is transmitted to the unwinding shaft 2 and the rewinding shaft 3, and the unwinding shaft 2 and the rewinding shaft 3 rotate synchronously in the same direction;

[0020] A die-cutting table 6 is fixed on the surface of the right-angle frame 1 above the unwinding shaft 2 and the rewinding shaft 3, and a paper tape anti-jumping structure 8 is installed on one side of the top of the die-cutting table 6, and a limit plate 7 made of stainless steel is fixed on one side of the top of the die-cutting table 6;

[0021] A lifting cam die-cutting assembly 10 is arranged at the top of the die-cutting table 6 on one side of the paper tape anti-jump structure 8. The lifting cam die-cutting assembly 10 comprises a gantry 1001 installed on one side of the top of the die-cutting table 6, a screw lifting module 1006 installed inside the gantry 1001, an I-shaped table 1002 installed at the movable end of the screw lifting module 1006, and a slide 1003 slidably installed on the surface of the I-shaped table 1002. An eccentric wheel reciprocating die-cutting structure 1004 for driving the slide 1003 to reciprocate and lift is installed on the surface of the I-shaped table 1002. A die-cutting knife 1005 is fixed at the bottom end of the slide 1003. During the operation of the lifting cam die-cutting assembly 10, the screw lifting module 1006 controls the height of the I-shaped table 1002 and the die-cutting knife 1005, thereby controlling the die-cutting depth of the die-cutting knife 1005 to avoid the breakage of the label paper tape due to excessive die-cutting depth.

[0022] A PLC control panel 9 is installed on one side of the surface of the right-angle frame 1, and the output end of the PLC control panel 9 is electrically connected to the input end of the pulley drive unit 5, the screw lifting module 1006, and the eccentric wheel reciprocating die-cutting structure 1004;

[0023] The pulley drive unit 5 includes a servo motor 501 installed on the back side of the right-angle frame 1, a pulley transmission structure 1 502 installed on the output end of the servo motor 501, and a pulley transmission structure 2 503 installed on one end of the surface of the winding shaft 3 and the unwinding shaft 2. The output end of the servo motor 501 drives the unwinding shaft 2 to rotate through the pulley transmission structure 1 502. The pulley transmission structure 1 502 includes a driving wheel installed on the output end of the servo motor 501 and a driven wheel fixed on one end of the surface of the unwinding shaft 2. A belt is wound between the driving wheel and the driven wheel.

[0024] The paper tape anti-jumping structure 8 includes an axle seat 801 installed on one side of the top of the die-cutting table 6, and a steel roller 802 rotatably installed on the outer wall of one side of the axle seat 801. During the label paper conveying action, the servo motor 501 drives the unwinding shaft 2 to rotate first through the pulley transmission structure 1 502, and the reeling shaft 3 rotates synchronously under the drive of the pulley transmission structure 2 503, so that the label paper is transferred from the unwinding shaft 2 to the reeling shaft 3. During this process, the steel roller 802 always covers the label paper tape, avoiding problems such as loosening, skewing or wrinkling of the label paper due to inconsistent material tension or uncontrolled tension and jumping, thereby ensuring the smooth conveying of the label paper during the die-cutting process;

[0025] The eccentric wheel reciprocating die-cutting structure 1004 includes a motor installed on the back of the I-beam 1002, an eccentric wheel installed at the output end of the motor, and a connecting rod unit hinged on one side of the eccentric wheel surface. The bottom end of the connecting rod unit is hinged to the top end of the slide 1003. When the height adjustment of the die-cutting knife 1005 is completed, the eccentric wheel reciprocating die-cutting structure 1004 converts the rotational motion into a linear reciprocating motion, so that the slide 1003 and the die-cutting knife 1005 are reciprocated and vertically pushed to achieve the die-cutting action. The die-cutting pressure of the lifting cam die-cutting assembly 10 is adjustable, and can be finely adjusted according to different label paper materials and die-cutting requirements to ensure the cutting quality and accuracy during the die-cutting process. The rotation speed of the eccentric wheel reciprocating die-cutting structure 1004 can be adjusted to adapt to the conveying frequency of the paper bag to achieve the function of continuous die-cutting of the label paper tape.

[0026] A roll material support structure 4 is provided on both sides of the back of the right-angle frame 1. The roll material support structure 4 includes a support arm 401 hingedly installed on the back of the right-angle frame 1, and a sponge roller 402 rotatably installed on the outer wall of one side of the support arm 401 and parallel to the extension direction of the unwinding shaft 2 and the winding shaft 3. The sponge roller 402 can apply pressure to the label paper tape on the unwinding shaft 2 and the winding shaft 3, so that the label paper tape can be better rolled and unwound.

[0027] When the embodiment of the present application is in use, the staff first sets the label paper roll to be die-cut on the unwinding shaft 2, and makes the paper end of the label paper roll pass through the upper surface of the die-cutting table 6 and be wound onto the reel 3. At this time, the paper tape anti-jump structure 8 is located on the upper surface of the label paper tape to reduce the up and down jumping of the label paper tape during the conveying and die-cutting process. Then the staff starts the pulley drive unit 5 and the lifting cam die-cutting assembly 10 through the PLC control panel 9 to work. During this process, the PLC control panel 9 controls the motors in the pulley drive unit 5 and the lifting cam die-cutting assembly 10 to work according to the set direction, speed, angle, and response time, that is, to control the label paper The conveying speed and die-cutting frequency of the tape are determined by the rotational power of the pulley drive unit 5, which is transmitted to the unwinding shaft 2 and the reeling shaft 3. The unwinding shaft 2 and the reeling shaft 3 rotate synchronously in the same direction, and then the label paper tape is conveyed and reeled onto the reeling shaft 3. The lifting cam die-cutting assembly 10 adopts a mechanical structure to control the height of the die-cutting knife and the up and down die-cutting frequency to achieve continuous die-cutting action. Moreover, since the die-cutting pressure is adjustable, it can be precisely adjusted according to different label paper materials and requirements to ensure the die-cutting quality and consistency. Since the frequent start and stop of the previous laser die-cutting head is not required, the wear of equipment parts is reduced, the service life of the die-cutting mechanism is extended, and the needs of high-frequency continuous processing of label paper can be met.

Claims

1. A die-cutting mechanism for label paper processing, characterized in that: The invention comprises a right-angle frame (1) and an unwinding shaft (2) and a rewinding shaft (3) symmetrically rotatably mounted at two ends of the surface of the right-angle frame (1); a pulley driving unit (5) for driving the unwinding shaft (2) and the rewinding shaft (3) to rotate synchronously is mounted on the back of the right-angle frame (1) on one side of the unwinding shaft (2); a die-cutting table (6) is fixed on the surface of the right-angle frame (1) above the unwinding shaft (2) and the rewinding shaft (3); a paper tape anti-jumping structure (8) is mounted on one side of the top of the die-cutting table (6); a lifting cam die-cutting assembly (10) is arranged on the top of the die-cutting table (6) on one side of the paper tape anti-jumping structure (8); the lifting cam die-cutting assembly (10) comprises a gantry frame (1001) mounted on one side of the top of the die-cutting table (6), a gantry frame (1002) and a gantry frame (1003) mounted on one side of the top of the die-cutting table (6); A screw rod lifting module (1006) is installed inside the frame (1001), an I-shaped table (1002) is installed at the movable end of the screw rod lifting module (1006), and a slide seat (1003) is slidably installed on the surface of the I-shaped table (1002); an eccentric wheel reciprocating die-cutting structure (1004) is installed on the surface of the I-shaped table (1002) for driving the slide seat (1003) to reciprocate and lift; a die-cutting knife (1005) is fixed at the bottom end of the slide seat (1003); a PLC control panel (9) is installed on one side of the surface of the right-angle frame (1); and the output end of the PLC control panel (9) is electrically connected to the input end of the pulley drive unit (5), the screw rod lifting module (1006), and the eccentric wheel reciprocating die-cutting structure (1004).

2. The die-cutting mechanism for label paper processing according to claim 1, characterized in that: The pulley drive unit (5) comprises a servo motor (501) mounted on one side of the back of the right-angle frame (1), a pulley transmission structure 1 (502) mounted on the output end of the servo motor (501), and a pulley transmission structure 2 (503) mounted on one end of the surface of the reel (3) and the unreel (2); the output end of the servo motor (501) drives the unreel (2) to rotate via the pulley transmission structure 1 (502).

3. The die-cutting mechanism for label paper processing according to claim 2, characterized in that: The pulley transmission structure 1 (502) comprises a driving wheel mounted on the output end of the servo motor (501) and a driven wheel fixed to one end of the surface of the unwinding shaft (2), and a belt is wound between the driving wheel and the driven wheel.

4. The die-cutting mechanism for label paper processing according to claim 1, characterized in that: A limiting plate (7) made of stainless steel is fixed to one side of the top of the die-cutting table (6).

5. The die-cutting mechanism for label paper processing according to claim 1, characterized in that: The paper tape anti-jump structure (8) comprises an axle seat (801) installed on one side of the top end of the die-cutting table (6), and a steel roller (802) rotatably installed on the outer wall of one side of the axle seat (801).

6. The die-cutting mechanism for label paper processing according to claim 1, characterized in that: A roll material support structure (4) is provided on both sides of the back of the right-angle frame (1), and the roll material support structure (4) comprises a support arm (401) hingedly mounted on the back of the right-angle frame (1), and a sponge roller (402) rotatably mounted on the outer wall of one side of the support arm (401) and parallel to the extension direction of the unwinding shaft (2) and the winding shaft (3).

7. The die-cutting mechanism for label paper processing according to claim 1, characterized in that: The eccentric wheel reciprocating die-cutting structure (1004) comprises a motor installed on the back of the I-beam (1002), an eccentric wheel installed at the output end of the motor, and a connecting rod unit hinged on one side of the eccentric wheel surface, wherein the bottom end of the connecting rod unit is hinged to the top end of the slide seat (1003).

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