Adjustable pneumatic shear cutting gate mechanism
By designing an adjustable pneumatic shear cutting gate mechanism, and utilizing the sliding connection between the slide rail and the slider and the linkage of the cylinder linkage mechanism, the problems of high labor intensity and poor adaptability of existing cutting devices are solved, achieving efficient and precise gate cutting, which is suitable for mass production.
Patent Information
- Application Number
- CN202521890357.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-02
AI Technical Summary
Existing gate cutting equipment is labor-intensive, inefficient, and cannot flexibly adapt to the gate cutting needs of different sizes and shapes, thus affecting production efficiency.
An adjustable pneumatic shear cutting gate mechanism was designed, including a base, an adjustment component and a pneumatic shearing device. Precise positioning is achieved through the sliding connection between the slide rail and the slider. The opening and closing of the shearing head is controlled by a cylinder and a linkage mechanism. Anti-slip pads and scales are provided to improve operational stability, and a wear-resistant coating is used to extend the life of the shearing head.
It enables rapid and precise gate cutting to adapt to different sizes and shapes, improving cutting efficiency and quality, reducing downtime, and is suitable for mass production environments.
Smart Images
Figure CN224675434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical processing and automation equipment technology, and in particular to an adjustable pneumatic shear cutting gate mechanism. Background Technology
[0002] Currently, in the injection molding process, gate portions often remain after product demolding, requiring removal via cutting equipment to ensure product integrity and aesthetics. Existing cutting methods mostly employ manual shearing tools or fixed cutting equipment. Manual shearing tools rely on manual operation, resulting in high labor intensity and low efficiency, while also making it difficult to guarantee cutting accuracy. While fixed cutting equipment can improve efficiency to some extent, its structure is relatively simple and cannot flexibly adapt to the cutting needs of gates of different sizes and shapes. Furthermore, in mass production, due to variations in gate location and size, adjusting the adaptability of the cutting equipment often consumes considerable time, impacting overall production efficiency. Therefore, there is an urgent need for a gate cutting mechanism that can balance high efficiency, accuracy, and flexibility to meet actual production requirements. Utility Model Content
[0003] The purpose of this utility model is to provide an adjustable pneumatic shear cutting gate mechanism, which solves the problems mentioned in the background art.
[0004] This utility model is implemented as follows: an adjustable pneumatic shear gate cutting mechanism, which mainly consists of: a base, an adjustment component set on the base, and a pneumatic shearing device installed on the adjustment component. The base is the main structure, and the adjustment component and the pneumatic shearing device are both fixedly installed on the base.
[0005] A further technical solution of this utility model is: the adjustment component includes a slide rail, a slider, and a positioning bolt. The slide rail is fixedly installed on the upper surface of the base. The slider is slidably connected to the slide rail through a groove at its bottom. The positioning bolt passes through the slider and is threaded into the side wall of the slide rail. By rotating the positioning bolt, the slider can be fixed or released on the slide rail.
[0006] A further technical solution of this utility model is: the top of the slider is provided with a mounting hole, a bearing is embedded in the mounting hole, the outer ring of the bearing is interference-fitted with the inner wall of the mounting hole, the inner ring of the bearing is clearance-fitted with the support rod of the pneumatic shearing device, and the support rod achieves rotational movement through the bearing.
[0007] A further technical solution of this utility model is: the pneumatic shearing device includes a cylinder, a linkage mechanism and a shearing head. The cylinder is fixedly installed at one end of the support rod. One end of the linkage mechanism is hinged to the piston rod of the cylinder, and the other end is hinged to the shearing head. The piston rod is driven to extend and retract by the cylinder, thereby driving the linkage mechanism to move and thus controlling the opening and closing of the shearing head.
[0008] A further technical solution of this utility model is: the linkage mechanism includes a first linkage and a second linkage. One end of the first linkage is hinged to the piston rod of the cylinder, and the other end is hinged to one end of the second linkage. The other end of the second linkage is hinged to the shearing head. The included angle between the first linkage and the second linkage changes with the extension and retraction of the piston rod, thereby changing the opening angle of the shearing head.
[0009] A further technical solution of this utility model is: the shearing head includes an upper blade and a lower blade, the upper blade and the lower blade are respectively hinged to the two ends of the second connecting rod by a pin, and a return spring is provided between the upper blade and the lower blade. One end of the return spring is fixed to the tail of the upper blade and the other end is fixed to the tail of the lower blade. When the cylinder stops working, the return spring pushes the upper blade and the lower blade back to the initial position.
[0010] A further technical solution of this utility model is: the side of the base is provided with a scale, the scale is arranged along the length of the slide rail, the side wall of the slider is provided with a pointer, the pointer points to the scale value on the scale, and the specific position of the slider on the slide rail is determined by observing the relative position of the pointer and the scale.
[0011] A further technical solution of this utility model is: the bottom of the slider is provided with an anti-slip pad layer, which is made of rubber material with a high coefficient of friction. The thickness of the anti-slip pad layer is 2mm to 5mm. The contact surface between the anti-slip pad layer and the slide rail forms friction to prevent the slider from sliding when it is not locked.
[0012] A further technical solution of this utility model is: the air inlet and air outlet of the cylinder are respectively connected to air pipes, the other end of the air pipes is connected to an external air source, and a pressure regulating valve is provided on the air pipes. The pressure regulating valve is used to adjust the air pressure inside the cylinder, thereby controlling the opening and closing speed of the shearing head.
[0013] A further technical solution of this utility model is: the cutting edge of the shearing head is provided with a wear-resistant coating, which is made of tungsten carbide material and has a thickness of 0.1mm to 0.3mm. The wear-resistant coating improves the service life of the shearing head and reduces downtime caused by frequent head replacement.
[0014] The beneficial effects of this utility model are as follows: The adjustable pneumatic shearing gate cutting mechanism of this utility model achieves horizontal movement of the pneumatic shearing device through an adjustable component, enabling rapid adaptation to gate cutting requirements of different sizes and shapes; the linkage mechanism in the pneumatic shearing device precisely controls the opening and closing angle of the shearing head, ensuring cutting accuracy; the anti-slip pad layer at the bottom of the slider and the scale scale on the side of the base improve operational stability and convenience; the wear-resistant coating on the cutting edge of the shearing head extends its service life; the overall structure is compact and reasonable, simple and efficient to operate, suitable for mass production environments, and significantly improves the efficiency and quality of gate cutting in injection molding. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the rear structure of the present invention;
[0017] Figure 3 This is a side view of the present invention.
[0018] The attached figures are labeled as follows:
[0019] 1. Base; 2. Slide rail; 3. Slider; 4. Positioning bolt; 5. Bearing; 6. Support rod; 7. Cylinder; 8. Linkage mechanism; 9. Shearing blade; 10. Scale; 11. Pointer; 12. Anti-slip pad; 13. Pressure regulating valve; 14. Wear-resistant coating. Detailed Implementation
[0020] like Figures 1 to 3 As shown, this utility model provides an adjustable pneumatic shear cutting gate mechanism, which consists of a base 1, an adjustment component, and a pneumatic shearing device. The base 1 is the basic component of the overall structure, and a slide rail 2 is fixedly mounted on its upper surface. The slide rail 2 is arranged horizontally to support and guide the movement of the slider 3. The slider 3 engages with the slide rail 2 through a groove at its bottom, forming a sliding connection. A positioning bolt 4 is provided through the side wall of the slider 3, and the threaded end of the positioning bolt 4 engages with the threaded end of the side wall of the slide rail 2. By rotating the positioning bolt 4, the slider 3 can be fixed or released on the slide rail 2. The top of the slider 3 has a mounting hole, into which a bearing 5 is embedded. The outer ring of the bearing 5 is interference-fitted with the inner wall of the mounting hole, while the inner ring of the bearing 5 is clearance-fitted with the support rod 6 in the pneumatic shearing device, allowing the support rod 6 to rotate around the bearing 5.
[0021] The pneumatic shearing device includes a cylinder 7, a linkage mechanism 8, and a shearing head 9. One end of the cylinder 7 is fixedly mounted on a support rod 6. The linkage mechanism 8 consists of a first link and a second link. One end of the first link is hinged to the piston rod of the cylinder 7, and the other end is hinged to one end of the second link. The other end of the second link is hinged to the shearing head 9. The shearing head 9 consists of an upper blade and a lower blade. The upper and lower blades are respectively hinged to the two ends of the second link via pins. A return spring is installed between the upper and lower blades, with one end fixed to the tail of the upper blade and the other end fixed to the tail of the lower blade. When the piston rod of the cylinder 7 extends or retracts, the angle between the first and second links changes, thereby causing the upper and lower blades of the shearing head 9 to open and close. When the cylinder 7 stops working, the return spring pushes the upper and lower blades back to their initial positions. The air inlet and outlet of cylinder 7 are connected to air pipes, and the other end of the air pipes is connected to an external air source. A pressure regulating valve 13 is installed on the air pipes to regulate the air pressure inside cylinder 7.
[0022] The bottom of slider 3 is provided with an anti-slip pad layer 12, which is made of high-friction rubber material with a thickness of 2mm to 5mm. The anti-slip pad layer 12 forms friction with the contact surface of the slide rail 2, preventing slider 3 from sliding when not locked. A scale 10 is provided on the side of the base 1, which is arranged along the length of the slide rail 2. A pointer 11 is provided on the side wall of slider 3, pointing to the scale value on the scale 10. The operator can determine the specific position of slider 3 on the slide rail 2 by observing the relative position of pointer 11 and scale 10. The cutting edge of the shearing head 9 is provided with a wear-resistant coating 14, which is made of tungsten carbide material with a thickness of 0.1mm to 0.3mm.
[0023] In actual use, the base 1 is first fixed on the worktable of the injection molding equipment to ensure the stability of the entire mechanism. Depending on the required gate size and location, the operator loosens the positioning bolt 4, allowing the slider 3 to slide freely on the slide rail 2. Simultaneously, the position of the slider 3 is precisely adjusted using the pointer 11 and the scale 10. Once the slider 3 reaches the target position, the positioning bolt 4 is rotated to lock it, preventing displacement during subsequent operations. Then, the external air source is activated, and gas enters the cylinder 7 through the air pipe. The pressure regulating valve 13 adjusts the air pressure within the cylinder 7 according to actual needs to control the opening and closing speed of the shearing head 9. When the piston rod of the cylinder 7 extends, the angle between the first and second connecting rods gradually decreases, causing the upper and lower blades of the shearing head 9 to close, completing the gate cutting action. When the piston rod of the cylinder 7 retracts, the angle between the first and second connecting rods gradually increases, and the upper and lower blades of the shearing head 9 return to the open state under the action of the return spring, ready for the next cut.
[0024] During prolonged continuous use, the cutting edge of the shearing head 9 will wear down due to frequent cutting. However, by applying a wear-resistant coating 14 to the cutting edge, the service life of the shearing head 9 can be significantly extended, reducing the frequency of replacement. In addition, the anti-slip pad layer 12 at the bottom of the slider 3 can effectively increase the friction between the slider 3 and the slide rail 2, preventing the slider 3 from accidentally sliding in an unlocked state, thereby improving the safety and reliability of operation.
[0025] The specific implementation process of this utility model demonstrates the close cooperation between the adjustment component and the pneumatic shearing device. Precise horizontal positioning is achieved through the sliding connection between the slide rail 2 and the slider 3. The efficient opening and closing of the shearing head 9 is achieved through the linkage between the cylinder 7 and the linkage mechanism 8. Furthermore, detailed designs such as the anti-slip pad 12, the scale 10, and the wear-resistant coating 14 further enhance the overall ease of operation and durability of the mechanism. This compact and reasonable structural design is suitable for mass production environments and can significantly improve the efficiency and quality of gate cutting in injection molding.
[0026] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.
[0027] First, fix the base 1 on the worktable of the injection molding equipment to ensure the stability of the entire mechanism. Then, the operator needs to loosen the positioning bolt 4 that runs through the side wall of the slider 3 according to the specific location and size of the gate to be cut, allowing the slider 3 to slide freely along the slide rail 2. The sliding connection between the slide rail 2 and the slider 3 is formed by the groove at the bottom of the slider 3 and the slide rail 2, ensuring smooth horizontal movement. During adjustment, the pointer 11 on the side wall of the slider 3 works in conjunction with the scale 10 on the side of the base 1. By observing the scale value pointed to by the pointer 11, the target position of the slider 3 on the slide rail 2 can be accurately determined. After the slider 3 moves to the target position, rotate the positioning bolt 4 to lock it, preventing displacement during subsequent operations. This process achieves the precise horizontal positioning function of the adjustment component. Its principle lies in the combined effect of the sliding cooperation between the slide rail 2 and the slider 3, and the locking mechanism of the positioning bolt 4, thereby meeting the flexible adaptation requirements of different gate positions.
[0028] Subsequently, an external air source is activated, and gas enters cylinder 7 through an air pipe. Pressure regulating valve 13 adjusts the internal air pressure of cylinder 7 according to actual needs to control the opening and closing speed of the shearing head 9. When the piston rod of cylinder 7 extends or retracts, the angle between the first and second connecting rods changes, thereby causing the upper and lower blades of the shearing head 9 to open and close. Specifically, when the piston rod of cylinder 7 extends, the angle between the first and second connecting rods gradually decreases, pushing the upper and lower blades of the shearing head 9 to close, completing the cutting action on the gate. When the piston rod of cylinder 7 retracts, the angle between the first and second connecting rods gradually increases, and the upper and lower blades of the shearing head 9 return to the open state under the action of the return spring, ready for the next cut. This process demonstrates the efficient opening and closing principle of the pneumatic shearing device, that is, through the linkage design of cylinder 7, connecting rod mechanism 8, and shearing head 9, a fast and precise cutting operation is achieved.
[0029] During prolonged continuous use, the cutting edge of the shearing head 9 wears down due to frequent cutting. However, by applying a wear-resistant coating 14 to the cutting edge, the service life of the shearing head 9 is significantly extended. The wear-resistant coating 14 is made of tungsten carbide material with a thickness of 0.1mm to 0.3mm. Its high hardness effectively resists the wear of the cutting edge, thereby reducing the frequency of replacement. In addition, the anti-slip pad 12 at the bottom of the slider 3 is made of a high-friction coefficient rubber material with a thickness of 2mm to 5mm. The anti-slip pad 12 forms friction with the contact surface of the slide rail 2, preventing the slider 3 from accidentally sliding when not locked. This design improves the safety and reliability of operation. Its principle lies in using a high-friction coefficient material to increase the friction between the slider 3 and the slide rail 2, avoiding displacement of the slider 3 due to external forces or vibrations.
[0030] In mass production environments, operators need to frequently adjust the position of slider 3 to accommodate gate cutting requirements of different sizes and shapes. Through the sliding connection between slide rail 2 and slider 3, combined with the use of scale 10 and pointer 11, intuitive adjustment of slider 3's position is achieved. Simultaneously, the clearance fit between bearing 5 and support rod 6 allows the pneumatic shearing device to rotate on top of slider 3, further enhancing the mechanism's flexibility. This compact and rational structural design is suitable for mass production environments, significantly improving the efficiency and quality of gate cutting in injection molding.
[0031] In summary, this invention solves the problems of high labor intensity of manual cutting tools and poor adaptability to fixed cutting equipment mentioned in the background art by adjusting the components and pneumatic shearing device. Its operating principle is based on the sliding connection between the slide rail 2 and the slider 3 to achieve precise horizontal positioning. The efficient opening and closing of the shearing head 9 is achieved through the linkage of the cylinder 7 and the linkage mechanism 8. Furthermore, detailed designs such as the anti-slip pad 12, the scale 10, and the wear-resistant coating 14 further enhance the overall ease of operation and durability of the mechanism. This design is not only suitable for various gate cutting scenarios but also significantly improves production efficiency and cutting accuracy.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable pneumatic shear cutting gate mechanism, characterized in that, The adjustable pneumatic shear gate cutting mechanism mainly consists of a base (1), an adjustment component set on the base (1), and a pneumatic shearing device installed on the adjustment component. The adjustment component includes a slide rail (2), a slider (3), and a positioning bolt (4). The slide rail (2) is fixedly installed on the upper surface of the base (1). The slider (3) is slidably connected to the slide rail (2) through a groove at its bottom. The positioning bolt (4) passes through the slider (3) and is threadedly engaged with the side wall of the slide rail (2).
2. The adjustable pneumatic shear cutting gate mechanism according to claim 1, characterized in that: The top of the slider (3) is provided with a mounting hole, and a bearing (5) is embedded in the mounting hole. The outer ring of the bearing (5) is interference-fitted with the inner wall of the mounting hole, and the inner ring of the bearing (5) is clearance-fitted with the support rod (6) of the pneumatic shearing device.
3. The adjustable pneumatic shear gate cutting mechanism according to claim 1, characterized in that: The pneumatic shearing device includes a cylinder (7), a linkage mechanism (8), and a shearing head (9). The cylinder (7) is fixedly installed at one end of the support rod (6). One end of the linkage mechanism (8) is hinged to the piston rod of the cylinder (7), and the other end is hinged to the shearing head (9).
4. The adjustable pneumatic shear cutting gate mechanism according to claim 3, characterized in that: The linkage mechanism (8) includes a first link and a second link. One end of the first link is hinged to the piston rod of the cylinder (7), and the other end is hinged to one end of the second link. The other end of the second link is hinged to the shearing head (9).
5. The adjustable pneumatic shear gate cutting mechanism according to claim 3, characterized in that: The shearing head (9) includes an upper blade and a lower blade. The upper blade and the lower blade are respectively hinged to the two ends of the second connecting rod by a pin. A return spring is provided between the upper blade and the lower blade. One end of the return spring is fixed to the tail of the upper blade, and the other end is fixed to the tail of the lower blade.
6. The adjustable pneumatic shear gate cutting mechanism according to claim 1, characterized in that: The base (1) has a scale (10) on its side, which is arranged along the length of the slide rail (2). The slider (3) has a pointer (11) on its side wall, which points to the scale value on the scale (10).
7. The adjustable pneumatic shear gate cutting mechanism according to claim 1, characterized in that: The bottom of the slider (3) is provided with an anti-slip pad (12), which is made of rubber material with a high coefficient of friction and has a thickness of 2 mm to 5 mm.