A negative pressure adsorption type light drinking tube rapid slitting and spacing device

Abstract

This utility model discloses a rapid cutting and spacing device for lightweight drinking straws using negative pressure adsorption. It includes a mounting frame, on which are mounted a vacuum feeding roller, a spacing roller, an active cutting device, a feeding roller, and a baffle. The vacuum feeding roller, spacing roller, and feeding roller are all connected to a negative pressure vacuum assembly and a transmission drive assembly. The transmission drive assembly controls the linear speed of each roller to be the same. This utility model allows for the cutting and spacing of drinking straws of different diameters and lengths by replacing the sliding drinking straw groove or the sliding block, thus changing the existing straw spacing method and improving the efficiency of cutting and spacing.

Description

Technical Field

[0001] This utility model relates to the production of drinking straws, and more particularly to a device for rapid cutting and spacing of lightweight drinking straws using a negative pressure adsorption method. Background Technology

[0002] As automated production lines demand higher precision and efficiency, and the market demand for straw products continues to grow, the production scale of straws is also expanding. This has placed higher demands on the automation level, production efficiency, intelligent upgrading, and cost control of straw production equipment.

[0003] Current pipe cutting methods mostly employ passive cutting and mechanically limited spacing. Passive cutting suffers from defects such as uneven pipe cuts and pipe deformation. Mechanically limited spacing makes the separation distance uncontrollable and cannot meet subsequent production needs.

[0004] Existing technologies, such as the "Pneumatically Driven Cigarette Separation Device and Method" (CN111747100B), include: multiple left and right separation blocks, each left and / or right separation block having a movably disposed guide groove that can move radially relative to the left and / or right separation blocks; each left separation block of the left separation wheel is connected to the cam contact surface of the left end face cam via a left cylindrical pin; each right separation block of the right separation wheel is connected to the cam contact surface of the right end face cam via a right cylindrical pin. This invention first utilizes the end face cam to separate the left and right separation blocks, allowing the cigarettes on the separation blocks to separate a short distance initially; then, airflow is used to move the cigarettes relative to the separation blocks, causing them to separate a longer distance, thus achieving long-distance cigarette separation.

[0005] Existing technologies, such as "a novel cigarette separation wheel device" (CN202476427U), include a cam mechanism, a wheel seat, a dustproof tube, a wheel body, a slider, and the dustproof tube is located in the middle. The wheel seat and wheel body are sleeved on the dustproof tube. The cam mechanism is located at the inner end of the device and installed on the end face of the wheel seat, isolated from the slider and the negative pressure air passage. A dustproof cover is provided on the upper part. The slider has an open structure and is connected to the drive shafts at the top and bottom of the device.

[0006] However, existing technologies lack a rapid cutting and spacing device specifically designed for drinking straw products, making it impossible to rapidly cut and space drinking straws of different models and specifications. Summary of the Invention

[0007] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a lightweight drinking straw rapid cutting and spacing device using negative pressure adsorption. For drinking straws of different diameters and lengths, the sliding drinking straw groove or sliding block can be replaced to achieve cutting and spacing of drinking straws of different models and specifications, changing the existing method of cutting and spacing and improving the efficiency of cutting and spacing.

[0008] Technical solution: This utility model discloses a rapid cutting and spacing device for lightweight drinking tubes using negative pressure adsorption, characterized in that: it includes a mounting frame, on which are mounted a vacuum feeding roller, a spacing roller, an active cutting device, a feeding roller, and a baffle; the vacuum feeding roller, the spacing roller, and the feeding roller are all connected to a negative pressure vacuuming component and a transmission drive component, and the transmission drive component controls the linear speed of each roller to be the same.

[0009] The pitch roller includes a pitch vacuum valve body, a slider guide shaft, a slider, a negative pressure pipeline, a cam, and a slider support valve body.

[0010] The segmented vacuum valve body is connected to the slider guide shaft, the negative pressure pipeline, and the cam; the slider guide shaft is equipped with a slider, which is connected to the slider support valve body.

[0011] The splitting roller, through the curve design of the cam and in conjunction with the baffle on one side, aligns the drinking tubes on the vacuum feeding roller on one side, and in conjunction with the active cutting device, evenly divides the drinking tubes and quickly separates them by a certain distance before transmitting them to the feeding roller.

[0012] The slider support valve body has ventilation holes of varying density on its surface according to the location of the negative pressure adsorption cavity area of ​​the spaced vacuum valve body, so as to form a negative pressure area during the slider sliding process; the slider support valve body has a polyhedral structure, forming a sealed cavity with the slider, and providing guidance for the horizontal movement of the slider.

[0013] The slider includes an adsorption groove block, a base, a cam bearing, and a camshaft.

[0014] The base is provided with a ventilation groove connecting the adsorption block and the negative pressure adsorption chamber area of ​​the spaced vacuum valve body, as well as a negative pressure isolated release chamber area, to realize the gripping and release of the drinking tube. The cam bearing moves with the cam trajectory to realize the control of the horizontal movement trajectory of the slider.

[0015] In this process, by changing the adsorption tank blocks with different tank shapes and pitches, and by changing the cam curves, different pipe diameters and different distances of drinking pipes can be achieved for cutting and spacing.

[0016] The active slitting device includes a frame, a speed control drive system, a tool cooling system, an active slitting tool, and a stopper.

[0017] The frame is equipped with a speed control drive system, a tool cooling system, and an active slitting tool, which passes through a stopper. The speed control drive system controls the cutting speed of the active slitting tool, and the tool cooling system cools the active slitting tool.

[0018] Beneficial Effects: Compared with existing technologies, this utility model has the following significant advantages: This utility model allows for the replacement of the sliding tube groove or slider for drinking straws of different diameters and lengths, enabling the cutting and spacing of drinking straws of different models and specifications. This changes the existing method of separating drinking straws and improves the efficiency of cutting and spacing. The drinking straw is evenly divided into two parts by an active cutting tool, and then the divided straws are separated by a certain distance using vacuum adsorption and cam motion principles. The separated straws are then transferred to the next process via a vacuum drum. Simultaneously, the separation distance can be controlled, further improving the efficiency of cutting and spacing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the active slitting device of this utility model;

[0022] Figure 4 This is a schematic diagram of the spacing roller of this utility model;

[0023] Figure 5 This is a schematic diagram of the slider of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the split vacuum valve body of this utility model;

[0025] In the figure, 1 is the vacuum feeding roller; 2 is the spacing roller; 3 is the active slitting device; 4 is the feeding roller; 5 is the mounting frame; 6 is the negative pressure vacuum assembly; 7 is the transmission drive assembly; 8 is the baffle; 201 is the spacing vacuum valve body; 202 is the slider guide shaft; 203 is the slider; 204 is the negative pressure pipeline; 205 is the cam; 206 is the slider support valve body; 301 is the frame; 302 is the speed control drive system; 303 is the tool cooling system; 304 is the active slitting tool; 305 is the stop claw; 2031 is the adsorption tank block; 2032 is the base; 2033 is the cam bearing; and 2034 is the camshaft. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] The present invention relates to a lightweight drinking tube rapid cutting and spacing device using negative pressure adsorption, comprising a mounting frame 5, on which are mounted a vacuum feeding roller 1, a spacing roller 2, an active cutting device 3, a feeding roller 4, and a baffle 8; the vacuum feeding roller 1, the spacing roller 2, and the feeding roller 4 are all connected to a negative pressure vacuuming component 6 and a transmission drive component 7, and the transmission drive component 7 controls the linear speed of each roller to be the same.

[0028] The present invention relates to a split roller 2, comprising a split vacuum valve body 201, a slider guide shaft 202, a slider 203, a negative pressure pipeline 204, a cam 205, and a slider support valve body 206. The split vacuum valve body 201 is connected to the slider guide shaft 202, the negative pressure pipeline 204, and the cam 205; the slider guide shaft 202 is equipped with a slider 203, which is connected to the slider support valve body 206. The split roller 2, through the curved design of the cam 205 and in conjunction with a single-sided baffle 8, aligns the drinking tubes on one side of the vacuum feeding roller 1, and, in conjunction with the active cutting device 3, evenly divides the drinking tubes, quickly separating them by a certain distance and transmitting them to the feeding roller 4. The surface of the slider support valve body 206 has ventilation holes of varying density according to the location of the negative pressure adsorption cavity area of ​​the split vacuum valve body 201, thereby creating a negative pressure area during the sliding of the slider 203; the slider support valve body 206 has a polyhedral structure, forming a sealed cavity with the slider 203 and providing guidance for the horizontal movement of the slider 203. The slider 203 includes an adsorption tank block 2031, a base 2032, a cam bearing 2033, and a cam shaft 2034. The base 2032 has a ventilation groove connecting the adsorption tank block 2031 to the negative pressure adsorption chamber area and the negative pressure isolated release chamber area of ​​the split vacuum valve body 201, thus enabling the gripping and release of the drinking tube. The cam bearing 2033 moves along the trajectory of the cam 205, controlling the horizontal movement trajectory of the slider 203. By changing different tank types and pitches of the adsorption tank block 2031, and changing different cam 205 curves, different tube diameters and distances of drinking tubes can be cut and spaced.

[0029] The active slitting device 3 of this utility model includes a frame 301, a speed-regulating drive system 302, a tool cooling system 303, an active slitting tool 304, and a stopper 305. The frame 301 is equipped with the speed-regulating drive system 302, the tool cooling system 303, and the active slitting tool 304, which passes through the stopper 305. The speed-regulating drive system 302 controls the cutting speed of the active slitting tool 304, and the tool cooling system 303 cools the active slitting tool 304.

[0030] During the production process, the incoming drinking tube is transferred to the separating roller 2 via the vacuum feeding roller 1. The two rollers of the vacuum feeding roller 1 and the separating roller 2 release and grasp the drinking tube by coordinating the positions of the negative pressure adsorption chamber area and the negative pressure isolated release chamber area. The drinking tube is gripped by the slider 203 of the split roller 2. The slider 203 is divided into two sides. The left slider 203 moves axially along the curve of the left cam 205 via the cam bearing 2033. The right slider 203 also moves along the curve of the right cam 205 via the cam bearing 2033. At the same time, the slider 203 also rotates axially relative to the split vacuum valve body 201. As the curve of the cam 205 changes, the slider 203 carrying the drinking tube first aligns one end through the baffle 8. After the drinking tube is aligned, as the curve of the cam 205 changes, the sliders 203 on both sides are symmetrically distributed, forming a cutting groove in the middle. The active cutting tool 304 is activated, and the slider 203 moves circumferentially to cut the drinking tube evenly. After the drinking tube is cut, as the curve of the cam 205 changes, the movement of the sliders 203 on both sides separates the drinking tube by a certain distance. The sliders 203 on both sides continue to move circumferentially until they reach the release chamber area of ​​the split vacuum valve body 201 where the negative pressure is isolated. The slider 203 transfers the drinking tube to the feeding roller 4. As the feeding roller 4 moves, the drinking tube enters the next process. The slider 203's ability to adsorb the drinking tube is based on a through groove inside the base 2032. One side connects to the adsorption groove block 2031, and the other side connects to the spacing vacuum valve body 201 via the slider support valve body 206. The negative pressure adsorption area of ​​the spacing vacuum valve body 201 matches the curved trajectory of the cam 205, ensuring that the slider 203 maintains a certain adsorption force while moving along the curve of the cam 205. The base 2032 in the slider 203 is designed as a planar shape to match the shape of the slider support valve body 206. The slider support valve body 206 adopts a multi-faceted structure, which not only ensures smooth operation of the slider 203 but also improves the sealing of the negative pressure area of ​​the slider. The groove block 2031 can be replaced according to different drinking tube diameters and spacing pitches, making it suitable for drinking tube products of various diameter specifications.

[0031] This invention comprises a vacuum feeding roller, an active slitting device, a spacing roller, and a feeding roller. The device works by using a negative pressure assembly to extract air from mechanical cavities with different functional areas, creating a negative pressure cavity. A slider controlled by an outer cam mechanism can move horizontally and rotate circumferentially on the surface of the negative pressure cavity. As the slider moves across the different functional areas of the cavity, it separates the cut-out drinking tubes by a certain distance. Furthermore, through the design of the cam curve, the device can achieve single-sided alignment of the tubes after feeding. For drinking tubes of different diameters and lengths, the slider or the drinking tube groove can be replaced to achieve slitting and spacing of different models and specifications of drinking tubes, changing the existing tube spacing method and improving slitting and spacing efficiency.

Claims

1. A device for rapid cutting and spacing of lightweight drinking straws using negative pressure adsorption, characterized in that: The system includes a mounting frame (5), on which are mounted a vacuum feed roller (1), a spacing roller (2), an active slitting device (3), a feed roller (4), and a baffle (8); the vacuum feed roller (1), the spacing roller (2), and the feed roller (4) are all connected to a negative pressure vacuum assembly (6) and a transmission drive assembly (7).

2. The lightweight drinking tube rapid cutting and spacing device according to claim 1 using negative pressure adsorption, characterized in that: The pitch roller (2) includes a pitch vacuum valve body (201), a slider guide shaft (202), a slider (203), a negative pressure pipeline (204), a cam (205), and a slider support valve body (206).

3. The lightweight drinking tube rapid cutting and spacing device using negative pressure adsorption according to claim 2, characterized in that: The split vacuum valve body (201) is connected to the slider guide shaft (202), the negative pressure pipeline (204), and the cam (205); the slider guide shaft (202) is provided with a slider (203), and the slider (203) is connected to the slider support valve body (206).

4. The lightweight drinking tube rapid cutting and spacing device according to claim 2 using negative pressure adsorption, characterized in that: The surface of the slider support valve body (206) is provided with ventilation holes of different densities according to the position of the negative pressure adsorption cavity area of ​​the split vacuum valve body (201); the slider support valve body (206) is a polyhedral structure, forming a sealed cavity with the slider (203).

5. The lightweight drinking tube rapid cutting and spacing device according to claim 2 using negative pressure adsorption, characterized in that: The slider (203) includes an adsorption groove block (2031), a base (2032), a cam bearing (2033), and a camshaft (2034).

6. The lightweight drinking straw rapid cutting and spacing device according to claim 5 using negative pressure adsorption, characterized in that: The base (2032) is provided with a ventilation groove connecting the negative pressure adsorption chamber area of ​​the adsorption block (2031) and the spaced vacuum valve body (201) and the negative pressure isolated release chamber area.

7. The lightweight drinking tube rapid cutting and spacing device according to claim 1 using negative pressure adsorption, characterized in that: The active slitting device (3) includes a frame (301), a speed control drive system (302), a tool cooling system (303), an active slitting tool (304), and a stopper (305).

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