Symmetrical fine adjustment device for blanking die
By using movable templates and fine-tuning base plate structure on the plastic sheet thermoformer, combined with fine-tuning screws and PLC controllers, the automatic and accurate fine-tuning of the punching mold is achieved, solving the operational inconvenience in the debugging process of the ultra-large-panel plastic sheet thermoformer, and improving production efficiency.
Patent Information
- Application Number
- CN202422629168.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The punching molds of existing ultra-large sheet thermoforming machines are difficult to achieve precise fine adjustment during the debugging process, and manual operation is inconvenient and time-consuming.
The movable template and fine-tuning baseboard structure are adopted, combined with fine-tuning screws, rotation angle sensors and PLC controllers, for automatic fine-tuning, and are equipped with locking mechanisms to ensure accurate and easy operation.
It realizes precise fine-tuning of super-large layout punching molds, simplifies the debugging process, and improves production efficiency and market competitiveness.
Smart Images
Figure CN223236527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an improved invention of a plastic sheet thermoforming machine, in particular to an improved invention of a symmetrical fine-tuning device for a punching die of a plastic sheet thermoforming machine. Background Art
[0002] The ultra-large sheet thermoforming machine, measuring 1100mm x 900mm, is the world's largest plastic sheet thermoforming machine. It features energy-saving, high production output, high stability, and a high degree of automation. It is used to produce thermoformed plastic sheet products such as automotive parts and food packaging. Controlled by a programmable logic controller (PLC), the ultra-large sheet thermoforming machine integrates sheet unwinding, feeding, heating, forming, punching, cutting, and stacking into an automated production facility.
[0003] When debugging dies for large-format production, the punching die requires fine-tuning the left and right angles to achieve more precise punching positions. Manual die adjustment is inconvenient due to the large size of the die, and screws securing the die prevent fine-tuning. Therefore, a structure for the punching die that both facilitates die locking and allows for automatic adjustment is urgently needed to address this issue. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a symmetrical fine-tuning device for a punching die.
[0005] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions: the symmetrical fine-tuning device of the punching die includes a movable template, which is characterized in that: a fine-tuning base plate is provided on the movable template, and the corresponding punching die is arranged on the fine-tuning base plate. Adjustment grooves are symmetrically provided on both sides of the fine-tuning base plate, and fine-tuning adjustment blocks and fine-tuning screws are provided on both sides of the movable template. The fine-tuning adjustment block is provided with an adjustment protrusion, and the adjustment protrusion is embedded in the adjustment groove. The fine-tuning adjustment block is movably set on the linear guide rail and driven by the fine-tuning screw thread. The corresponding fine-tuning screws are provided with screw seats at both ends, and one end of the fine-tuning screw is connected to a rotational power source, and the other end of the fine-tuning screw is provided with a rotation angle sensor, and the rotation angle sensor and the rotation power source are connected to the PLC controller; the fine-tuning base plate is also provided with a locking mechanism.
[0006] The locking mechanism includes a locking bar, a pressure rod and a locking cylinder. The locking bar is located at the upper end of the fine-tuning base plate. The pressure rod can be movably inserted into the fine-tuning base plate and the movable template. The pressure rod is transmission-connected to the locking cylinder. The upper end of the pressure rod is connected to the locking bar. The lower end of the pressure rod is equipped with a reset structure. The locking cylinder is connected to the PLC controller.
[0007] The reset structure includes a mold locking spring and a spring seat thereof, and the mold locking spring is sleeved on the pressure rod.
[0008] The rotational power source is a reduction motor, and the shaft end of the fine-tuning screw is provided with a keyway and is transmission-connected to the reduction motor.
[0009] The beneficial effect of the utility model is the improved symmetrical fine-tuning device for the punching die, which innovatively adopts the symmetrical fine-tuning device to automatically fine-tune the punching die, thereby achieving precise and simple operation of fine-tuning the super-large-format punching die, and solving the problem of time-consuming and labor-intensive mold adjustment during machine debugging; at the same time, it also improves the company's market competitiveness in the thermoforming of super-large-format plastic sheets. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.
[0011] Figure 1 It is a structural diagram of the present utility model.
[0012] Figure 2 It is a top view of the structure of the present utility model.
[0013] Figure 3 For this utility model Figure 2 Magnified view of part A.
[0014] Figure 4 It is a side view of the present utility model.
[0015] Figure 5 For this utility model Figure 4 AA cross-sectional view.
[0016] Figure 6 It is a rear view of the present invention.
[0017] Figure 7 It is a bottom view of the present utility model. DETAILED DESCRIPTION
[0018] The accompanying drawings show the structure of the present invention, and the following further describes its relevant details in conjunction with the accompanying drawings. Figure 1-7The symmetrical fine-tuning device of the punching die includes a movable template 1, a fine-tuning base plate 2 is provided on the movable template 1, and the corresponding punching die 3 is arranged on the fine-tuning base plate 2. Adjustment grooves 4 are symmetrically provided on both sides of the fine-tuning base plate 2, and fine-tuning adjustment blocks 5 and fine-tuning screws 6 are provided on both sides of the movable template 1. The fine-tuning adjustment block 5 is provided with an adjustment protrusion 7, and the adjustment protrusion 7 is embedded in the adjustment groove 4. The fine-tuning adjustment block 5 is movably set on the linear guide rail 8 and is threadedly driven by the fine-tuning screw 6. The corresponding fine-tuning screw 6 is provided with a screw seat 9 at both ends, and one end of the fine-tuning screw 6 is connected to a rotation power source 10, and the other end of the fine-tuning screw 6 is provided with a rotation angle sensor 11. The rotation angle sensor 11 and the rotation power source 10 are connected to the PLC controller; the fine-tuning base plate 2 is also provided with a locking mechanism.
[0019] The working principle of the present invention is that the locking mechanism releases the fine-tuning base plate 2 in advance, and then the rotating power source 10 outputs power to rotate the fine-tuning screw 6 according to the instruction of the PLC controller. The fine-tuning screw 6 drives the fine-tuning adjustment block 5 to move along the linear guide rail 8, and the corresponding adjustment protrusion 7 transmits the adjustment groove 4, thereby driving the fine-tuning base plate 2 to move, and the punching die 3 on the fine-tuning base plate 2 is fine-tuned together. After the fine-tuning is completed, the locking mechanism locks the fine-tuning base plate 2, wherein the rotation angle sensor 11 collects the rotation data of the fine-tuning screw 6 and feeds it back to the PLC controller, so as to ensure the fine-tuning accuracy.
[0020] As a further improved embodiment, the locking mechanism includes a locking bar 12, a pressure rod 13, and a locking cylinder 14. The locking bar 12 is located at the upper end of the fine-tuning base plate 2. Preferably, four locking bars 12 are provided, and they are arranged in a square shape to improve the locking effect. A number of pressure rods 13 are movably provided on the fine-tuning base plate 2 and the movable template 1. The pressure rods 13 are connected to the locking cylinder 14 by transmission. The upper ends of the pressure rods 13 are connected to the locking bar 12, and the lower ends of the pressure rods 13 are equipped with a reset structure 15. The locking cylinder 14 is connected to a PLC controller. During operation, the solenoid valve of the locking cylinder 14 is controlled by the PLC controller. When the blanking die 3 needs to be adjusted, the locking air pressure is instantly released. After the fine-tuning is completed, the solenoid valve is activated to fill the air pressure and re-lock the mold, so that the problem of overloading the rotation power source 10 in the locked state will not occur.
[0021] As a further improved specific implementation method, the reset structure 15 includes a locking spring and its spring seat. The locking spring is sleeved on the pressure rod 13, and the upper end of the locking spring abuts against the spring seat. The spring seat is installed under the movable template 1 through a bracket. The lower end of the locking spring abuts against the transmission plate 16. The transmission plate 16 is connected to the lower end of the pressure rod 13. The transmission plate 16 is driven by the locking cylinder, and the locking cylinder is fixed on the bracket.
[0022] As a further improved specific implementation method, the rotational power source 10 is a reduction motor, and the shaft end of the fine-tuning screw 6 is provided with a keyway and is transmission-connected to the reduction motor.
[0023] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A symmetrical fine-tuning device for the blanking die, including a movable die plate, is characterized by: The movable template is provided with a fine-tuning base plate, and the corresponding punching die is arranged on the fine-tuning base plate. Adjustment grooves are symmetrically provided on both sides of the fine-tuning base plate. Fine-tuning adjustment blocks and fine-tuning screws are provided on both sides of the movable template. The fine-tuning adjustment block is provided with an adjustment protrusion, and the adjustment protrusion is embedded in the adjustment groove. The fine-tuning adjustment block is movably set on the linear guide rail and is driven by the fine-tuning screw thread. Screw seats are provided at both ends of the corresponding fine-tuning screw, and one end of the fine-tuning screw is connected to a rotational power source, and the other end of the fine-tuning screw is provided with a rotation angle sensor. The rotation angle sensor and the rotational power source are connected to the PLC controller; the fine-tuning base plate is also provided with a locking mechanism.
2. The symmetry fine-tuning device for the blanking die according to claim 1, characterized in that: The locking mechanism includes a locking bar, a pressure rod and a locking cylinder. The locking bar is located at the upper end of the fine-tuning base plate. The pressure rod can be movably inserted into the fine-tuning base plate and the movable template. The pressure rod is transmission-connected to the locking cylinder. The upper end of the pressure rod is connected to the locking bar. The lower end of the pressure rod is equipped with a reset structure. The locking cylinder is connected to the PLC controller.
3. The symmetry fine-tuning device for the blanking die according to claim 2, characterized in that: The reset structure includes a mold locking spring and a spring seat thereof, and the mold locking spring is sleeved on the pressure rod.
4. The symmetry fine-tuning device for a blanking die according to claim 1, characterized in that: The rotational power source is a reduction motor, and the shaft end of the fine-tuning screw is provided with a keyway and is transmission-connected to the reduction motor.