A cryogenically cooled anti-stick tooling die assembly

Abstract

The utility model discloses a low temperature cooling anti -sticky knife mould component relates to mechanical processing equipment technical field, including mounting piece, the mounting piece top is equipped with drive cylinder, drive cylinder execution end is equipped with the first cross board, the first cross board bottom is equipped with the second cross board, the second cross board bottom is equipped with a plurality of lead -through hole structural members, the lead -through hole structural members both ends are equipped with the limiting rod, the limiting rod bottom is equipped with the mounting block, the mounting block one side is equipped with the limiting side board, the mounting block bottom is equipped with the movable template. The utility model discloses through the design and structure of optimization knife mould component, improves the precision, quality and efficiency of material cutting, reduces production cost and maintenance difficulty simultaneously.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of machining equipment, specifically a low-temperature cooling anti-sticking die assembly. Background Technology

[0002] In modern industrial production, die-cutting assemblies are widely used in the cutting and processing of various materials, such as leather, plastics, paper, and rubber. During operation, traditional die-cutting assemblies generate a significant amount of heat due to the continuous friction and pressure between the die and the material being cut, especially in high-speed, continuous cutting environments.

[0003] The accumulation of this heat can lead to a series of adverse consequences. On the one hand, high temperatures can alter the physical properties of the material being cut, such as softening or melting, resulting in uneven cut edges, burrs, and adhesion, severely affecting product quality and appearance. On the other hand, high temperatures can accelerate the wear of the die-cutting mold, reducing its lifespan and increasing production costs. Furthermore, in the processing of some temperature-sensitive materials, high temperatures may even trigger chemical changes, leading to a decline in material performance or rendering the material unusable.

[0004] To address the aforementioned issues, while some cooling methods exist, such as air cooling and water cooling, these methods have numerous limitations in practical applications. Air cooling has low efficiency and is difficult to quickly and effectively reduce the temperature of the die; while water cooling offers better cooling performance, it requires complex piping systems and sealing devices, which can lead to complex equipment structures, increased costs, and the risk of leakage, potentially damaging the production environment and products. Therefore, developing an efficient, reliable, and structurally simple die cooling technology has become an urgent need in current industrial production. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a low-temperature cooling anti-stick die assembly to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A low-temperature cooling anti-stick die assembly includes a mounting component. The top of the mounting component is provided with a driving cylinder. The actuating end of the driving cylinder is provided with a first horizontal plate. The bottom of the first horizontal plate is provided with a second horizontal plate. The bottom of the second horizontal plate is provided with a plurality of through-hole structural components. Limiting rods are passed through both ends of the through-hole structural components. The bottom of the limiting rods is provided with a mounting block. One side of the mounting block is provided with a limiting side plate. The bottom of the mounting block is provided with a moving template.

[0007] Preferably, the mounting component has fixed metal sheet metal on both ends of its sidewalls.

[0008] Preferably, the first horizontal plate has limiting slide rods at both ends of its top and at both ends of its bottom that slide through the mounting component.

[0009] Preferably, guide posts are provided on both sides of the top of the second horizontal plate, and the bottom of the guide posts are connected to the top sides of the moving template.

[0010] Preferably, the through hole structure has an input end connection port on the top, an output end through port on one side, and a cylindrical slider on the other side.

[0011] Preferably, the input port is connected to a conduit, the conduit is connected to a liquid nitrogen supply device, and the outer wall of the cylindrical slider is slidably connected to the inner wall of the limiting side plate.

[0012] Preferably, the outer wall of the limiting rod is provided with a spring, and the top of the mounting block is provided with a through hole. Preferably, the top of the moving template is provided with a groove, and an inner hole is provided on one side of the groove. The shape of the groove is the same as the bottom shape of the through hole structure, and the inner diameter of the inner hole is the same as the inner diameter of the output end port.

[0013] In summary, this technical solution has the following main advantages: By introducing a low-temperature cooling system, the die is rapidly cooled using low-temperature media such as liquid nitrogen, effectively reducing the temperature of the die during the cutting process. This avoids problems such as uneven cutting edges, burrs, and adhesion caused by changes in the physical properties of the material being cut due to high temperatures, significantly improving the cutting quality and the pass rate of product appearance. Compared to traditional air-cooling and water-cooling methods, the low-temperature cooling method used in this die-cutting mold assembly has the advantages of high cooling efficiency and fast response speed. At the same time, the assembly has a reasonable structural design. Through the synergistic action of components such as the through-hole structure, limiting rod, and mounting block, it achieves effective delivery of the low-temperature medium and stable installation of the die-cutting mold, avoiding complex piping systems and sealing devices, simplifying the equipment structure, and reducing manufacturing costs and maintenance difficulty. Attached Figure Description

[0014] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a partial structural isometric view of the present invention; Figure 3 This is an isometric view of the through-hole structure and component of this utility model; Figure 4 The moving template structure of this utility model Figure 1 ; Figure 5 The moving template structure of this utility model Figure 2 .

[0015] Figure descriptions: 10. Mounting component; 11. Drive cylinder; 12. First horizontal plate; 13. Second horizontal plate; 14. Through hole structure; 15. Limiting rod; 16. Mounting block; 17. Limiting side plate; 18. Moving template; 101. Fixed metal sheet metal; 121. Limiting slide rod; 131. Guide post; 141. Input end connection port; 142. Output end through port; 143. Cylindrical slider; 151. Spring; 161. Through hole; 181. Groove; 182. Inner hole. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1 to 4 As shown, a low-temperature cooling anti-stick die assembly includes a mounting component 10. The top of the mounting component 10 is provided with a driving cylinder 11. The actuating end of the driving cylinder 11 is provided with a first horizontal plate 12. The bottom of the first horizontal plate 12 is provided with a second horizontal plate 13. The bottom of the second horizontal plate 13 is provided with a plurality of through-hole structural components 14. Limiting rods 15 pass through both ends of the through-hole structural components 14. The bottom of the limiting rods 15 is provided with a mounting block 16. One side of the mounting block 16 is provided with a limiting side plate 17. The bottom of the mounting block 16 is provided with a movable template 18, and the bottom of the movable template 18 is used to mount the die.

[0018] Mounting component 10 has fixed metal sheet 101 on both sides.

[0019] Limiting slide rods 121 are provided at both ends of the top of the first horizontal plate 12 and at both ends of the bottom of the mounting component 10.

[0020] The second horizontal plate 13 has guide posts 131 on both sides of the top, and the bottom of the guide posts 131 is connected to the top sides of the moving template 18.

[0021] The top of the through hole structure 14 is provided with an input end connection port 141, one side of the through hole structure 14 is provided with an output end port 142, and the other side of the through hole structure 14 is provided with a cylindrical slider 143.

[0022] The input port 141 is connected to a conduit, which is connected to the liquid nitrogen supply equipment. The outer wall of the cylindrical slider 143 is slidably connected to the inner wall of the limiting side plate 17.

[0023] The outer wall of the limiting rod 15 is provided with a spring 151, and the top of the mounting block 16 is provided with a through hole 161.

[0024] The top of the moving template 18 is fitted with a groove 181, and an inner hole 182 is provided on one side of the groove 181. The inner hole 182 is used to cool the die during injection by liquid nitrogen. The shape of the groove 181 is the same as the bottom shape of the through hole structure 14, and the inner diameter of the inner hole 182 is the same as the inner diameter of the output port 142.

[0025] This cryogenic cooling anti-sticking die assembly consists of a mounting base, a drive module, a cooling conveying module, and a moving die execution module. It achieves anti-sticking during die cutting through a combination of liquid nitrogen cryogenic cooling and cylinder drive. The specific structure of each module is as follows: Mounting base: includes mounting component 10 and two fixed metal sheet 101 on both sides. Mounting component 10 is made of high-strength aluminum alloy. Fixed metal sheet 101 is locked to the die-cutting machine worktable by M8 bolts. Drive module: Drive cylinder 11 is fixed to the top center of mounting part 10, with an actuation end stroke accuracy of ±0.05mm. The first horizontal plate 12 and the second horizontal plate 13 are rigidly connected by M6 bolts. The limit slide rod 121 is made of chrome-plated steel. Cooling delivery module: The through hole structure 14 is a one-piece stainless steel part with an internal liquid nitrogen channel inner diameter of Φ8mm. The input end connection port 141 adopts a quick connector, and the coaxiality error between the output end port 142 and the inner hole 182 of the moving template 18 is ≤0.02mm. Moving mold execution module: The moving mold plate 18 is made of tool steel, the flatness error of the bottom die mounting surface is ≤0.01mm, and the groove 181 is 5mm deep to match the bottom boss of the through hole structure 14.

[0026] Example 2: Component Assembly Process Step 1: Fix the mounting base. Place the mounting part 10 on the worktable of the die-cutting machine. After calibrating with a level, drive two M8 expansion bolts into each of the two sides of the fixed metal sheet 101, with a tightening torque of 25~30 N·m.

[0027] Step 2: Driver module assembly The drive cylinder 11 is fixed to the top of the mounting part 10 by 4 M6 bolts, and the perpendicularity error between the cylinder axis and the worktable is ≤0.05°; After the first horizontal plate 12 and the second horizontal plate 13 are stacked, two limiting slide rods 121 are inserted from the bottom of the mounting part 10. The top of the slide rods is locked with nuts, leaving a gap of 0.5mm to compensate for thermal expansion. The top of the guide post 131 is interference-fitted with the second horizontal plate 13, and the bottom is threadedly connected to the moving template 18.

[0028] Step 3: Cooling module integration The through-hole structural component 14 is inserted into the limiting rod 15, and the cylindrical slider 143 is slid into the guide groove of the limiting side plate 17 after being coated with grease. The input port 141 is connected to a liquid nitrogen conduit, and the other end of the conduit is connected to a liquid nitrogen supply device. Spring 151 is sleeved on the outer wall of limit rod 15, and the pre-compression amount is controlled by adjusting the nut on the top of mounting block 16.

[0029] Step 4: Debugging the dynamic model execution module The die is installed on the bottom of the moving template 18 using M4 bolts; Start the liquid nitrogen supply equipment, adjust the pressure to 0.8MPa, observe the uniformity of liquid nitrogen spraying from the inner hole 182, and use an infrared thermometer to detect the target value of the die surface temperature of -120℃±10℃. Run the drive cylinder 11 under no-load conditions to check the stroke of the moving template 18 and the smoothness of the extension and retraction of the limit rod 15.

[0030] The working principle of this utility model is as follows: When the actuator of the drive cylinder 11 extends to the maximum value of the set stroke, that is, when the die and the material are cut, liquid nitrogen is quantitatively output from the supply equipment (this process is implemented by the PLC controller), flows into the through hole structure 14 through the conduit, enters the internal channel through the input end connection port 141, and is sprayed into the inner hole 182 of the moving template 18 through the output end port 142. Finally, when it is transformed into a gas, it reaches the surface of the die, causing the die temperature to drop to below -120°C within 2 seconds. When the material to be cut comes into contact with the low temperature die, it becomes locally brittle, and the adhesion is reduced by more than 80%.

[0031] The drive cylinder 11 presses down at the actuator end, which drives the moving template 18 to move vertically downward through the first horizontal plate 12 and the second horizontal plate 13. The guide post 131 ensures the accuracy of the movement direction. When the die contacts the material at a speed of 50 mm / s, the low temperature causes microcracks to form on the surface of the material, reducing the cutting force by 30% and preventing melting and sticking to the die.

[0032] After the cutting is completed, the drive cylinder 11 retracts, and the spring 151 assists the moving template 18 to return to its original position smoothly through the elastic potential energy; the cylindrical slider 143 slides along the limiting side plate 17 to prevent the through hole structure 14 from shifting.

[0033] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. A low-temperature cooling anti-stick die assembly, comprising a mounting component (10), characterized in that, The mounting component (10) is provided with a driving cylinder (11) at the top. The driving cylinder (11) is provided with a first horizontal plate (12) at the actuating end. The first horizontal plate (12) is provided with a second horizontal plate (13) at the bottom. The second horizontal plate (13) is provided with a plurality of through hole structures (14) at the bottom. The through hole structures (14) are provided with limit rods (15) at both ends. The limit rods (15) are provided with a mounting block (16) at the bottom. The mounting block (16) is provided with a limit side plate (17) on one side. The mounting block (16) is provided with a moving template (18) at the bottom.

2. The low-temperature cooling anti-stick die assembly according to claim 1, characterized in that, The mounting component (10) has fixed metal sheet metal (101) on both sides.

3. The low-temperature cooling anti-sticking die assembly according to claim 1, characterized in that, Limiting slide rods (121) are provided at both ends of the top of the first horizontal plate (12) and at both ends of the bottom of the mounting component (10).

4. The low-temperature cooling anti-sticking die assembly according to claim 1, characterized in that, The second horizontal plate (13) has guide posts (131) on both sides of the top, and the bottom of the guide posts (131) is connected to the top sides of the moving template (18).

5. The low-temperature cooling anti-sticking die assembly according to claim 1, characterized in that, The top of the through hole structure (14) is provided with an input end connection port (141), one side of the through hole structure (14) is provided with an output end port (142), and the other side of the through hole structure (14) is provided with a cylindrical slider (143).

6. A low-temperature cooling anti-sticking die assembly according to claim 5, characterized in that, The input port (141) is connected to a conduit, which is connected to a liquid nitrogen supply device. The outer wall of the cylindrical slider (143) is slidably connected to the inner wall of the limiting side plate (17).

7. The low-temperature cooling anti-stick die assembly according to claim 1, characterized in that, The outer wall of the limiting rod (15) is provided with a spring (151), and the top of the mounting block (16) is provided with a through hole (161).

8. A low-temperature cooling anti-sticking die assembly according to claim 5, characterized in that, The top of the moving template (18) is provided with a groove (181), and an inner hole (182) is provided on one side of the groove (181). The shape of the groove (181) is the same as the bottom shape of the through hole structure (14), and the inner diameter of the inner hole (182) is the same as the inner diameter of the output end port (142).

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