Fine adjustment mechanism of circular knife machine

Abstract

The utility model discloses a fine adjustment mechanism of a circular knife machine, which comprises a main body mechanism, the main body mechanism comprises a frame, a lower cutter assembly rotationally installed on the frame, a U-shaped frame movably arranged on the frame, an upper cutter assembly rotationally installed on the U-shaped frame, cylinders symmetrically fixed to the top end of the frame, adjusting rods symmetrically fixed to the top end of the U-shaped frame and extending into inner cavities of the cylinders, and communicating pipes arranged above the cylinders and communicating with the cylinders. The frame is used for installing other assemblies and guaranteeing the stability of the assemblies, the lower cutter assembly is installed on the frame and matched with the upper cutter assembly to conduct die cutting on products, and the die cutting efficiency is improved. The lower cutter assembly comprises a lower cutter shaft rotationally installed on the frame and a first gear fixed to the end of the lower cutter shaft, and the fine adjustment mechanism of the circular cutter machine has the advantages of precise fine adjustment of die cutting pressure and high practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of circular knife machines, in particular to a fine-tuning mechanism for a circular knife machine. Background Art

[0002] The circular knife machine is a device that uses a cylindrical knife die to perform rolling die-cutting on the material. In the continuous cutting technology of large-scale long-run die-cutting with uniform specifications, the working speed and production efficiency of the circular knife and circular die are higher than those of the flat die (about 6 to 8 times). In terms of die-cutting quality, because the circular knife and circular die are in line contact, the working pressure is small and the product molding stability is relatively high.

[0003] The existing circular knife machines have the following main drawbacks during use: the die-cutting pressure is difficult to fine-tune accurately, resulting in poor product die-cutting effect. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted by the present invention is: a circular knife machine fine-tuning mechanism, comprising: a main body mechanism, the main body mechanism including a frame, a lower cutter assembly rotatably mounted on the frame, a U-shaped frame movably arranged on the frame, an upper cutter assembly rotatably mounted on the U-shaped frame, a cylinder symmetrically fixed at the top of the frame, an adjusting rod symmetrically fixed at the top of the U-shaped frame and extending into the inner cavity of the cylinder, a connecting pipe arranged above the cylinder and connected to the cylinder, an air supply part installed on the connecting pipe, and an air pressure sensor installed at one end of the connecting pipe and extending into the connecting pipe.

[0006] In a preferred example, the present invention can be further configured as follows: the lower cutter assembly includes a lower cutter shaft rotatably mounted on the frame and a first gear fixed to the end of the lower cutter shaft.

[0007] In a preferred example, the present invention can be further configured as follows: the upper cutter assembly includes an upper cutter shaft rotatably mounted on a U-shaped frame and a second gear fixed to the end of the upper cutter shaft, and the second gear is meshed with the first gear.

[0008] In a preferred example, the present invention can be further configured as follows: the adjusting rod includes a support rod fixed to the top of the U-shaped frame and extending into the inner cavity of the cylinder, a piston fixed to the top of the support rod and a spring connecting the piston and the bottom wall of the cylinder.

[0009] In a preferred example, the present invention can be further configured as follows: the air delivery member includes an air intake pipe installed on one side of the connecting pipe and connected to the connecting pipe, and an electric valve installed on the air intake pipe.

[0010] In a preferred example, the present invention can be further configured as follows: sliding grooves are provided on the opposite inner side surfaces of the frame, and sliding bars are fixed on both sides of the U-shaped frame, and the sliding bars are slidably embedded in the U-shaped frame.

[0011] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0012] 1. In the utility model, the lower cutter assembly is fixed on the frame, and a U-shaped frame is movably arranged on the frame, the upper cutter assembly is installed on the U-shaped frame, and the cylinder is fixed on the top of the frame at the same time. An adjusting rod is symmetrically installed on the top of the U-shaped frame and extends into the inner cavity of the cylinder. In addition, a connecting pipe is provided above the cylinder to communicate with the inner cavity of the cylinder, and an air supply member is installed on the connecting pipe. Through the above arrangement, high-pressure air is supplied to the connecting pipe and the inner cavity of the cylinder by the air supply member, and pressure is applied to the adjusting rod by the high-pressure air, and the adjusting rod transmits the pressure to the U-shaped frame, that is, die-cutting pressure is applied to the upper cutter assembly. By controlling the air pressure in the connecting pipe and the inner cavity of the cylinder, the die-cutting pressure can be accurately controlled and adjusted, thereby increasing practical performance.

[0013] 2. In the present invention, an air pressure sensor is installed on one side of the connecting pipe. The air pressure sensor monitors the gas pressure in the connecting pipe in real time. In conjunction with the air supply component, precise adjustment of the air pressure in the connecting pipe and the inner cavity of the cylinder can be achieved, that is, precise fine-tuning of the die-cutting pressure can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 3 It is a partial structural diagram of the utility model.

[0017] Reference numerals:

[0018] 100. Main body; 110. Frame; 111. Slide; 120. Lower cutter assembly; 121. Lower cutter shaft; 122. First gear; 130. U-shaped frame; 131. Slide; 140. Upper cutter assembly; 141. Upper cutter shaft; 142. Second gear; 150. Cylinder; 160. Adjustment rod; 161. Support rod; 162. Piston; 163. Spring; 170. Connecting pipe; 180. Air supply component; 181. Air intake pipe; 182. Electric valve; 190. Air pressure sensor. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0020] Some embodiments of the present invention are described below with reference to the accompanying drawings.

[0021] Example 1:

[0022] Combine Figure 1-3 As shown, this embodiment provides a circular knife machine fine-tuning mechanism, including: a main body mechanism 100.

[0023] Among them, the main mechanism 100 includes a frame 110, a lower cutter assembly 120 rotatably mounted on the frame 110, a U-shaped frame 130 movably mounted on the frame 110, an upper cutter assembly 140 rotatably mounted on the U-shaped frame 130, a cylinder 150 symmetrically fixed at the top of the frame 110, an adjusting rod 160 symmetrically fixed at the top of the U-shaped frame 130 and extending into the inner cavity of the cylinder 150, a connecting pipe 170 arranged above the cylinder 150 and connected to the cylinder 150, an air supply part 180 installed on the connecting pipe 170, and an air pressure sensor 190 installed at one end of the connecting pipe 170 and extending into the connecting pipe 170.

[0024] The frame 110 is used to install other components to ensure the stability of each component. The lower cutter assembly 120 is installed on the frame 110 and cooperates with the upper cutter assembly 140 to die-cut the product. The lower cutter assembly 120 includes a lower cutter shaft 121 rotatably installed on the frame 110 and a first gear 122 fixed to the end of the lower cutter shaft 121. A lower cutter (not shown) is fixed on the lower cutter shaft.

[0025] The U-shaped frame 130 is movably arranged on the frame 110 and is used to install an upper cutter assembly 140. The upper cutter assembly 140 includes an upper cutter shaft 141 rotatably mounted on the U-shaped frame 130 and a second gear 142 fixed to the end of the upper cutter shaft 141. An upper cutter (not shown) is fixed on the upper cutter shaft 141. The second gear 142 is engaged with the first gear 122 so that when the lower cutter shaft 121 rotates, the first gear 122 is driven to rotate. The rotation of the first gear 122 drives the second gear 142 to rotate synchronously, that is, drives the upper cutter shaft 141 to rotate synchronously, so that the upper cutter shaft 141 and the lower cutter shaft 121 are conveniently aligned with each other when die-cutting products.

[0026] In addition, sliding grooves 111 are opened on the opposite inner side surfaces of the frame 110, and sliding bars 131 are fixed on both sides of the U-shaped frame 130. The sliding bars 131 are slidably embedded in the U-shaped frame 130 to limit the movement of the U-shaped frame 130 and ensure the stability of the U-shaped frame 130.

[0027] The cylinder 150 is fixed to the top of the frame 110 to form a closed space. The adjusting rod 160 is used to adjust the downward pressure of the U-shaped frame 130. It includes a support rod 161 fixed to the top of the U-shaped frame 130 and extending into the inner cavity of the cylinder 150, and a piston 162 fixed to the top of the support rod 161 to connect the piston 162 and the spring 163 on the bottom wall of the cylinder 150. The support rod 161 is used to install the piston 162. The piston 162 fits the inner wall of the cylinder 150 and is used to transmit the pressure of the gas to the U-shaped frame 130 through the support rod 161. The spring 163 is used to lift the piston 162 upward to ensure the stability of the piston 162.

[0028] The connecting pipe 170 connects the inner cavities of the cylinder 150 on both sides and is used to deliver high-pressure gas into the inner cavity of the cylinder 150. The air delivery member 180 is used to deliver high-pressure air into the connecting pipe 170 and the inner cavity of the cylinder 150. It includes an air intake pipe 181 installed on one side of the connecting pipe 170 and connected to the connecting pipe 170, and an electric valve 182 installed on the air intake pipe 181. The air intake pipe 181 is connected to the air pump through a hose, which facilitates the air pump to deliver high-pressure air into the connecting pipe 170. The electric valve 182 is used to control the opening and closing of the air intake pipe 181.

[0029] The air pressure sensor 190 is used to monitor the air pressure data in the connecting pipe 170 in real time. In conjunction with the electric valve 182, it can achieve precise adjustment of the air pressure in the connecting pipe 170 and the inner cavity of the cylinder 150, that is, achieve precise fine-tuning of the die-cutting pressure.

[0030] The working principle and usage process of the present invention are as follows: during use, when the die-cutting pressure needs to be adjusted, the electric valve 182 is opened. At this time, the air pump sends high-pressure gas into the connecting pipe 170 through the air inlet pipe 181, and the high-pressure gas enters the inner cavity of the cylinder 150 through the connecting pipe 170. Under the action of the high-pressure gas, the piston 162 drives the U-shaped frame 130 to press down through the support rod 161, that is, drives the upper cutter assembly 140 to press down, increasing the die-cutting pressure. At the same time, the air pressure sensor 190 monitors the air pressure value in the connecting pipe 170 in real time. The larger the air pressure value in the connecting pipe 170, the greater the die-cutting pressure of the upper cutter assembly 140, and the smaller the air pressure in the connecting pipe 170, the smaller the die-cutting pressure of the upper cutter assembly 140. When the gas pressure in the connecting pipe 170 is equal to the set value, the electric valve 182 is closed.

[0031] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A circular knife machine fine-tuning mechanism, comprising: The main body mechanism (100) is characterized in that the main body mechanism (100) includes a frame (110), a lower cutter assembly (120) rotatably mounted on the frame (110), a U-shaped frame (130) movably mounted on the frame (110), an upper cutter assembly (140) rotatably mounted on the U-shaped frame (130), a cylinder (150) symmetrically fixed to the top end of the frame (110), an adjusting rod (160) symmetrically fixed to the top end of the U-shaped frame (130) and extending into the inner cavity of the cylinder (150), a connecting pipe (170) arranged above the cylinder (150) and connected to the cylinder (150), an air supply member (180) mounted on the connecting pipe (170), and an air pressure sensor (190) mounted at one end of the connecting pipe (170) and extending into the connecting pipe (170).

2. A circular knife machine fine adjustment mechanism according to claim 1, characterized in that: The lower cutter assembly (120) comprises a lower cutter shaft (121) rotatably mounted on the frame (110) and a first gear (122) fixed at the end of the lower cutter shaft (121).

3. The circular knife machine fine-tuning mechanism according to claim 2, characterized in that: The upper cutter assembly (140) comprises an upper cutter shaft (141) rotatably mounted on the U-shaped frame (130) and a second gear (142) fixed to the end of the upper cutter shaft (141), wherein the second gear (142) is meshed with the first gear (122).

4. The circular knife machine fine-tuning mechanism according to claim 1, characterized in that: The regulating rod (160) comprises a support rod (161) fixed at the top end of the U-shaped frame (130) and extending into the inner cavity of the cylinder (150), a piston (162) fixed at the top end of the support rod (161), and a spring (163) connecting the piston (162) and the inner bottom wall of the cylinder (150).

5. The circular knife machine fine-tuning mechanism according to claim 1, characterized in that: The air delivery member (180) comprises an air intake pipe (181) installed on one side of the connecting pipe (170) and connected to the connecting pipe (170), and an electric valve (182) installed on the air intake pipe (181).

6. The circular knife machine fine-tuning mechanism according to claim 5, characterized in that: Slide grooves (111) are provided on opposite inner side surfaces of the frame (110), and slide bars (131) are fixed on both sides of the U-shaped frame (130), and the slide bars (131) are slidably embedded in the U-shaped frame (130).

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