Die cutting device of high-speed flat-pressing flat-die cutting machine
By designing a three-point bearing structure and self-lubricating oil pool in a high-speed trademark die-cutter, the problem of unoptimized design and insufficient lubrication of the die-cutting device is solved, and the stability and service life of the machine are significantly improved.
Patent Information
- Application Number
- CN202421402879.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The existing high-speed trademark die-cutting machines have hidden dangers in terms of operating stability and die-cutting accuracy, mainly due to the lack of optimization of the design structure of the die-cutting device and the hidden dangers of the lubrication device, resulting in insufficient crankshaft deformation and lubrication.
A die-cutting device for a high-speed flattening die-cutting machine is designed. The three-point bearing structure of the fixed seat assembly ensures the coaxiality of the crankshaft components. It adopts a self-lubricating base design, and the crankshaft components and copper sleeves are immersed in the oil pool to achieve comprehensive lubrication without an oil supply device.
Effectively prevent crankshaft deformation, enhance the stability and service life of the machine, and ensure die-cutting accuracy and pressure stability.
Smart Images
Figure CN222792313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of die-cutting devices, in particular to a die-cutting device of a high-speed flat-bed die-cutting machine. Background Art
[0002] Trademark die-cutting machines are mainly used for die-cutting of non-metallic materials, electronics, EVA and other materials, as well as embossing and hot stamping. By applying a certain pressure on the stamping plate, the printed product or cardboard is rolled into a certain shape. It is an important equipment for post-printing packaging processing and molding.
[0003] There are two main types of post-printing die-cutting equipment purchased and used by label printing and packaging factories. One is the ordinary trademark die-cutting machine, which has poor stability, low precision, slow speed and low price, and is widely used in small-scale workshop-type factories; the second is the high-speed trademark die-cutting machine, which has high efficiency, high precision, fast speed, strong stability and slightly higher price, and is mainly purchased and used by large-scale printing and packaging factories. With the increase in labor costs, efficient and safe digital intelligent equipment is becoming more and more popular among customers. High-speed trademark die-cutting machines will replace ordinary die-cutting machines and will also become a development trend, which is of great significance to the survival and sustainable development of printing and packaging factories. However, compared with ordinary trademark die-cutting machines, high-speed trademark die-cutting machines are a relatively new product with uneven production levels and technical capabilities, which causes various problems to occur frequently during the use of users. Among them, the stability of machine operation and the precision pressure of die-cutting are increasingly concerned by users. Good pressure stability and precise precision are essential for user production efficiency.
[0004] There are two main reasons for the hidden dangers of high-speed trademark die-cutting machine pressure stability and short service life:
[0005] 1. Due to the non-optimization of the die-cutting device design structure, the existing die-cutting device crankshaft is mainly fixed by the shaft seats at both ends, and the assembly process is prone to cumulative errors. Most crankshafts have a large span, and are very easy to deform when bearing pressure. Although some designs have stable bearings, most of them use inclined blocks for support. The bearing holes are not formed in one step, which cannot well ensure the coaxiality of the crankshaft fixed bearings. Long-term operation will cause great hidden dangers to the die-cutting accuracy and stability. In the long run, the crankshaft will be deformed, which will gradually affect the stability of the machine pressure.
[0006] 2. Hidden dangers of the machine lubrication device. The machine needs to lubricate the main lubrication points including gears, bearings, copper sleeves, etc. The above parts are forced to be lubricated through the oil pipe by the oil supply device. If the oil supply device works abnormally or a certain oil pipe is blocked, it will cause wear and damage to the key parts of the lubrication points that need lubrication, thereby affecting the stability of the machine pressure, accuracy and life. Utility Model Content
[0007] In view of the above-mentioned shortcomings of the prior art, the utility model provides a die-cutting device of a high-speed flat-bed die-cutting machine, which can effectively solve the problems of the prior art.
[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0009] The utility model provides a die-cutting device of a high-speed flat die-cutting machine, comprising a fixed seat assembly, a movable assembly, and an upper fixed assembly which are sequentially distributed from bottom to top;
[0010] The fixing seat assembly comprises a base, a crankshaft component is fixed on the upper end of the base, two left and right pressure plates are symmetrically arranged on the upper end of the crankshaft component, an intermediate pressure plate is also arranged on the upper end of the crankshaft component, and a rear cover is also arranged on the crankshaft component;
[0011] The crankshaft component is composed of an active eccentric crankshaft and a driven eccentric crankshaft, and also includes a pressure bearing, a steel sleeve, a stabilizing bearing, a gear, a synchronous pulley, and a rear fixed bearing arranged on the outside of the active eccentric crankshaft and the driven eccentric crankshaft. The left and right pressure plates and the middle pressure plate act on the pressure bearing and the stabilizing bearing respectively.
[0012] The movable assembly comprises a movable plate, the upper end of the movable plate is fixedly connected with a lower fixed plate, the upper end of the lower fixed plate is provided with a lower pad, the lower end of the movable plate is provided with a plurality of guide posts, the plurality of guide posts are tightly fixed to the movable plate, a spring is provided on each of the plurality of guide posts, the spring is coaxial with the guide post, and the upper end surface of the spring is against the plane of the base, a copper sleeve is fixedly provided at the upper end of the base, a driving device is provided between the movable assembly and the fixed seat assembly, and a steel sleeve top block is provided at the lower end of the movable plate;
[0013] The upper fixing assembly includes an upper cover, an upper locking column, a rotatable slide plate, an upper inclined plate, a lower inclined plate, an inclined plate guide column, an upper pad, a skew adjustment block, a skew front baffle, a skew adjustment screw, an upper fixed guide column, an upper fixed guide column lock nut, and an upper sticky knife plate, which are arranged in sequence from top to bottom. The upper locking column is hoisted and rotatably connected to the upper cover, the skew front baffle is fixed on the rotatable slide plate, the skew adjustment screw is fixed on the skew front baffle, and the skew adjustment block is fixed to the bottom of the upper cover.
[0014] According to the above-mentioned die-cutting device of a high-speed flat-bed die-cutting machine, the fixing hole of the fixing seat assembly is formed in one step to ensure the coaxiality of the three-point bearing position of the crankshaft component, better bear the pressure of the movable component to disperse the pressure of the crankshaft component, and make the six points of the crankshaft component evenly bear the pressure.
[0015] According to the die-cutting device of the high-speed flat-bed die-cutting machine, the crankshaft component is composed of an active eccentric crankshaft and a driven eccentric crankshaft meshed through gears.
[0016] According to the die-cutting device of the high-speed flat-bed die-cutting machine, the driving motor of the crankshaft component is a servo motor and is rotated by a synchronous pulley.
[0017] According to the die-cutting device of the high-speed flat-bed die-cutting machine, the upper fixing assembly is connected to the fixing seat assembly via an upper fixing guide column.
[0018] According to the die-cutting device of the above-mentioned high-speed flat-bed die-cutting machine, a sealing structure is adopted inside the fixed seat assembly, and the entire fixed seat assembly is equivalent to an oil pool, the bearings of the crankshaft components are immersed in the oil pool, and the fixed seat assembly is sealed with cover plates at the front, back, left and right sides.
[0019] Compared with the known prior art, the technical solution provided by the utility model has the following advantages:
[0020] Beneficial effects:
[0021] 1. The utility model is fixed to the base by the crankshaft assembly through the base component, and is used for fixing the pressure bearing and the stabilizing bearing of the left and right pressure plates and the middle pressure plate respectively. The rear cover is the crankshaft rear fixing seat, and the bearing embedded in the rear cover is used to support the crankshaft assembly. When the base is processed, after the base is fixed by three pressure plates, the bearing hole of the crankshaft assembly is formed at one time to ensure the coaxiality of the bearing position of the crankshaft assembly. Obviously, the shaft seat is removed and the fixing structure of the bearing pressure plate is directly adopted, which reduces the cumulative error of the same shaft seat assembly, better bears the pressure of the movable assembly to disperse the crankshaft assembly, and makes the 8 points of the crankshaft assembly bear the pressure evenly, which better prevents the crankshaft from being deformed due to long-term pressure, thereby enhancing the stability of the machine and greatly improving the structural stability and durability of the base assembly.
[0022] 2. The utility model adopts the design concept of self-lubrication of the base components. The front, back, left, and right covers of the base are tightly matched, and the crankshaft components will not throw out oil due to the cover during high-speed movement, thereby achieving a sealing effect. Obviously, the base can be equivalent to an oil pool, and the copper sleeve gears and crankshaft components are all immersed in the oil pool, so that the purpose of lubrication of various points can be achieved without an oil supply device. The refueling mark on the front cover of the base can clearly display the position of the oil pool liquid level and more intuitively detect the oil level. The self-lubricating design concept better guarantees the lubrication performance of each lubrication point, ensures timely and accurate lubrication of each lubrication point, and prevents wear and damage to key parts due to lack of lubrication caused by failure of the oil supply device or blockage of an oil pipe, thereby affecting the stability of the machine pressure and further enhancing the service life of the machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0024] Figure 1 It is a structural schematic diagram of the utility model in a front view;
[0025] Figure 2 for Figure 1 Schematic diagram of the structure at the middle base;
[0026] Figure 3 for Figure 2 Schematic diagram of the structure of the middle crankshaft component;
[0027] Figure 4 for Figure 1 Schematic diagram of the structure of the active components;
[0028] Figure 5 for Figure 1 Schematic diagram of the structure of the middle and upper fixed components.
[0029] Figure numerals: 1, fixed seat assembly; 11, base; 12, crankshaft component; 13, left and right pressure plates; 14, middle pressure plate; 15, rear cover; 121, active eccentric crankshaft; 122, driven eccentric crankshaft; 123, pressure bearing; 124, steel sleeve; 125, stabilizing bearing; 126, gear; 127, synchronous pulley; 128, rear fixed bearing; 2, movable assembly; 21, movable plate; 22, lower fixed plate; 23, lower Pad; 24, guide column; 25, copper sleeve; 26, spring; 27, steel sleeve top block; 3, upper fixed assembly; 31, upper cover; 32, upper locking column; 33, rotatable slide plate; 34, upper inclined plate; 35, lower inclined plate; 36, inclined plate guide column; 37, upper pad; 38, skew adjustment block; 39, skew front baffle; 391, skew adjustment screw; 392, upper fixed guide column; 393, upper fixed guide column lock nut; 394, upper sticky knife plate. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.
[0031] The utility model is further described below in conjunction with embodiments.
[0032] Example: Refer to Figures 1 to 5 A die-cutting device of a high-speed flat die-cutting machine includes a fixed seat assembly 1 distributed from bottom to top, the fixed seat assembly 1 is fixed to a base 11 by a crankshaft component 12, and is used to fix a pressure bearing 123 and a stabilizing bearing 125 on left and right pressure plates 13 and an intermediate pressure plate 14, respectively, and a rear cover 15 is a crankshaft rear fixed seat, and a bearing embedded in the rear cover 15 is used to support the crankshaft component.
[0033] When the base 11 is processed, after the base 11 is fixed by three pressure plates, the bearing hole of the crankshaft component 12 is formed at one time to ensure the coaxiality of the bearing position of the crankshaft component 12. Obviously, the shaft seat is removed and the fixed structure of the bearing pressure plate is directly adopted to reduce the cumulative error of similar shaft seat assembly, better bear the pressure of the movable components to disperse the crankshaft component, make the eight points of the crankshaft component 12 evenly bear the pressure, and better prevent the crankshaft from being deformed due to long-term pressure.
[0034] The crankshaft component consists of an active eccentric crankshaft 121 and a driven eccentric crankshaft 122. A pressure bearing 123, a steel sleeve 124, a stabilizing bearing 125, a gear 126, a synchronous pulley 127, and a rear fixed bearing 128 are all fixed on the eccentric crankshaft. The crankshaft bearings are all heavy-duty pressure bearings and are all arranged in pairs to better bear the pressure brought by the moving components. The two eccentric crankshafts are driven by gear meshing, and the active eccentric crankshaft pulley is driven by a servo motor to realize the rotation of the crankshaft component.
[0035] The copper sleeve 25 on the movable component 2 is fixed to the base 11, the guide column 24 is fixed to the movable plate 21, the spring 26 is coaxial with the guide column and the upper surface of the spring is against the plane of the base, the steel sleeve top block 27 is fixed to the bottom of the movable plate, the steel sleeve top block is embedded with a positioning pin hole, and the positioning pin shaft cooperates with the steel sleeve pin hole, so that the steel sleeve and the steel sleeve top block are always against each other without large deviation.
[0036] The lower fixed plate 22 is fixed on the movable plate, and the lower pad 23 is guided on the fixed plate by the guide rail. The lower pad 23 is a thin plate with light weight and easy operation.
[0037] When the crankshaft component 12 rotates, the steel sleeve 124 at the eccentric position is driven to rotate. Since the steel sleeve 124 is abutted against the movable plate 21, and the movable plate 21 is positioned by the guide column, when the crankshaft component 12 rotates, it further drives the movable plate to reciprocate up and down.
[0038] The base 11 is tightly fitted with cover plates at the front, back, left and right sides, and the crankshaft component 12 does not throw oil outward during high-speed movement due to the cover plate shielding, thereby achieving a sealing effect. Obviously, the base can be equivalent to an oil pool, and the copper sleeve gear and the crankshaft component 12 are all immersed in the oil pool, thereby achieving the purpose of lubrication of various points without the need for an oil supply device.
[0039] The oil filling mark display on the front cover plate of the base 11 can clearly show the position of the oil pool liquid level, and more intuitively detect the oil level height.
[0040] An oil drain hole is installed at the bottom of the base 11, and the internal lubricating oil can be replaced every 2 months. The self-lubricating design concept better guarantees the lubrication performance of each lubrication point, ensures timely and accurate lubrication of each lubrication point, and prevents lack of lubrication due to failure of the oil supply device or blockage of an oil pipe, thereby preventing wear and damage to key parts, thereby affecting the stability of the machine pressure and further enhancing the service life of the machine.
[0041] The two ends of the crankshaft component 12 are tightly matched with the fixed seat assembly 1, and the two sides are fixed by the base 11 pressure plate. A stable bearing is installed in the middle of the crankshaft component 12, and the stable bearing is fixed by the base pressure plate. This base assembly is fixed by three base pressure plates, and the fixing hole of the fixed seat assembly 1 is formed in one time to ensure the coaxiality of the three-point bearing position of the crankshaft component, and better prevent the crankshaft from being deformed due to long-term pressure. The upper fixing assembly 3 and the fixed seat assembly 1 are fixed and matched through support guide columns.
[0042] The upper fixing assembly includes an upper cover 31, a rotatable slide plate 33, an upper inclined plate 34, a lower inclined plate 35, an upper pad 37, and an upper sticking knife plate 394 that fit closely in sequence. The upper locking column 32 hoists the rotatable slide plate on the upper cover to realize rotation. The rotatable slide plate 33 and the lower inclined block are hoisted on the upper cover 31 through the inclined plate guide column 36. The guide column hole of the upper cover 31 is an arc, which can realize the rotation of the lower part of the upper cover without moving.
[0043] The tilted front baffle plate 39 is fixed on the rotatable slide plate 33, and the tilt adjustment screw 391 is fixed on the front baffle plate of the tilted plate. The tilt adjustment screw 391 is rotated to adjust the upper tilted block to slide back and forth. The upper and lower tilted blocks are wedge block mechanisms, thereby realizing the upper pad 37 to slide up and down, thereby driving the knife mold fixed on the upper sticking knife plate to slide up and down, thereby achieving the purpose of adding and reducing pressure.
[0044] The skew adjustment block 38 is fixed to the bottom of the upper cover 31. The skew adjustment block 38 adjusts the rotatable slide plate 33 by the left and right screws, thereby driving the lower part of the entire upper cover 31 to rotate to achieve the purpose of adjusting the skew of the die.
Claims
1. A die-cutting device for a high-speed flat-bed die-cutting machine, characterized in that: It comprises a fixed seat component (1), a movable component (2), and an upper fixed component (3) which are arranged in sequence from bottom to top; The fixing seat assembly (1) comprises a base (11), a crankshaft component (12) is fixed to the upper end of the base (11), two left and right pressure plates (13) are symmetrically arranged at the upper end of the crankshaft component (12), an intermediate pressure plate (14) is also arranged at the upper end of the crankshaft component (12), and a rear cover (15) is also arranged on the crankshaft component (12); The crankshaft component is composed of an active eccentric crankshaft (121) and a driven eccentric crankshaft (122), and also includes a pressure bearing (123), a steel sleeve (124), a stabilizing bearing (125), a gear (126), a synchronous pulley (127), and a rear fixed bearing (128) arranged outside the active eccentric crankshaft (121) and the driven eccentric crankshaft (122); the left and right pressure plates (13) and the middle pressure plate (14) act on the pressure bearing (123) and the stabilizing bearing (125) respectively; The movable assembly (2) comprises a movable plate (21), the upper end of the movable plate (21) is fixedly connected to a lower fixed plate (22), the upper end of the lower fixed plate (22) is provided with a lower pad (23), the lower end of the movable plate (21) is provided with a plurality of guide pillars (24), the plurality of guide pillars (24) are tightly fixed to the movable plate (21), a spring (26) is provided on each of the plurality of guide pillars (24), the spring (26) is coaxial with the guide pillar (24), and the upper end surface of the spring (26) abuts against the plane of the base (11), a copper sleeve (25) is fixedly provided at the upper end of the base (11), a driving device is provided between the movable assembly (2) and the fixed seat assembly (1), and a steel sleeve top block (27) is provided at the lower end of the movable plate (21); The upper fixing assembly comprises an upper cover (31), an upper locking column (32), a rotatable slide plate (33), an upper inclined plate (34), a lower inclined plate (35), an inclined plate guide column (36), an upper pad (37), a skew adjustment block (38), a skew front baffle plate (39), a skew adjustment screw (391), an upper fixed guide column (392), an upper fixed guide column lock nut (393), and an upper knife sticking plate (394), which are arranged in sequence from top to bottom. The upper locking column (32) is hoisted and rotatably connected to the upper cover (31), the skew front baffle plate (39) is fixed on the rotatable slide plate (33), the skew adjustment screw (391) is fixed on the skew front baffle plate (39), and the skew adjustment block (38) is fixed to the bottom of the upper cover (31).
2. The die-cutting device of a high-speed flat-bed die-cutting machine according to claim 1, characterized in that: The fixing hole of the fixing seat assembly (1) is formed in one step, thereby ensuring the coaxiality of the three-point bearing positions of the crankshaft component (12), better bearing the pressure of the movable assembly (2) and dispersing the pressure of the crankshaft component (12), so that the six points of the crankshaft component (12) bear the pressure evenly.
3. The die-cutting device of a high-speed flat-bed die-cutting machine according to claim 2, characterized in that: The crankshaft component (12) is composed of an active eccentric crankshaft (121) and a driven eccentric crankshaft (122) meshed through gears.
4. The die-cutting device of a high-speed flat-bed die-cutting machine according to claim 1, characterized in that: The driving motor of the crankshaft component (12) is a servo motor and is rotated by a synchronous pulley.
5. The die-cutting device of a high-speed flat-bed die-cutting machine according to claim 1, characterized in that: The upper fixing assembly (3) is connected to the fixing seat assembly (1) via an upper fixing guide column (392).
6. The die-cutting device of a high-speed flat-bed die-cutting machine according to claim 1, characterized in that: The interior of the fixing seat assembly (1) adopts a sealing structure, and the entire fixing seat assembly (1) is equivalent to an oil pool. The bearings of the crankshaft component (12) are all immersed in the oil pool. The fixing seat assembly (1) is sealed with cover plates at the front, back, left and right sides.