Polylactic acid anti-scratch straw cutting machine

Abstract

The utility model discloses a polylactic acid anti-scratch straw cutting machine which comprises a shell and further comprises a cutting assembly used for cutting a straw. The cutting assembly comprises a main shaft, a plain-end cutter head and a bevel-end cutter head, the main shaft is rotationally connected with the shell on one side of the shell, the plain-end cutter head and the bevel-end cutter head are fixedly connected to the main shaft, a soft rubber sheet is arranged on a bevel-end blade of the bevel-end cutter head, and a plain-end cutter sleeve and a bevel-end cutter sleeve are fixedly connected into the shell; the straw cutting device has the advantages that by using the rubber pad and controlling the distance between the blade and the cutter sleeve, the cut straw is free of scratches and high in quality, and the problem that scratches are prone to occurring at the two ends of the straw after a polylactic acid thick straw is cut is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of straw processing, and in particular relates to a polylactic acid anti-scratch straw cutting machine. Background Art

[0002] The straw plastic particles are melt-extruded through a screw extruder set at a certain temperature and speed, and the extrudate is blown into a hollow cylindrical straw by blowing, and then passed through a water tank of a certain length for cooling and shaping. The shaped straw is placed in a conveying device and then passed through a cutting device. In the prior art, when a straw cutting machine cuts a polylactic acid thick-pointed straw with an inner diameter of 11±0.2cm, first the cutter hits the straw to produce extrusion, and then the cutter contacts the knife sleeve to cut the straw. Therefore, there is a short time interval from the time the cutter hits the straw to the time the straw is cut. However, during this time interval, the straw is continuously transported forward by the transmission system, resulting in scratches on both sides of the cut of the straw. The debris on the scratched straw not only causes a bad experience for consumers, but also affects the health and safety of consumers. A device that can avoid scratches when cutting straws is now proposed. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a polylactic acid anti-scratch straw cutting machine to solve the above problems.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a polylactic acid anti-scratch straw cutting machine, comprising a shell, and also comprising: a cutting assembly for cutting straws; the cutting assembly comprises a main shaft, a flat-edge knife disc and a beveled knife disc, the main shaft is rotatably connected to the shell on one side of the shell, the flat-edge knife disc and the beveled knife disc are fixedly connected to the main shaft respectively, the beveled blades of the beveled knife disc are provided with a soft film, the flat-edge knife sleeve and the beveled knife sleeve are fixedly connected in the shell, and the spacing between the flat blade and the flat knife sleeve is 5-10mm higher than that between the beveled blade and the beveled knife sleeve.

[0005] Beneficial Effects

[0006] The utility model provides a polylactic acid anti-scratch straw cutting machine, which has the following beneficial effects compared with the prior art:

[0007] The relevant technicians place the straws between the two conveyor belts and start the motor at the same time, so that the motor drives the gear meshing with its output gear to start rotating, so that the gear drives the guide rod fixedly connected to it to rotate synchronously, so that the pulley starts to rotate synchronously with the guide rod under the cooperation of the belt connected to it for transmission, so that the pulley drives the wheel axle fixedly connected to it to start rotating synchronously, so that the multiple wheel axles cooperate with each other to drive the conveyor belt connected to it for transmission to start rotating, so as to start transporting the straws placed between the two conveyor belts and transport the straws to the knife sleeve. At the same time, the guide rod drives the worm wheel fixedly connected thereto to rotate synchronously, so that the worm wheel drives the worm meshing with it to rotate synchronously, so that the worm drives the main shaft fixedly connected to it to start rotating, so that the main shaft drives the flat-edge cutter disc and the bevel cutter disc fixed thereon to rotate synchronously. The flat knife disc starts to rotate, and the knives on the flat knife disc and the bevel knife disc contact with the flat knife sleeve and the bevel knife sleeve respectively, to squeeze and cut the straw. At the same time, rubber pads are arranged on the bevel knife disc, the bevel knife sleeve and the flat knife sleeve, so that the rubber pads contact with the straws first, and the cutting of the straws is completed when the straws are squeezed to a flat shape, which can effectively avoid scratches at both ends of the pointed end of the straw. At the same time, the distance between the blade on the flat knife disc and the flat knife sleeve is 5-10mm higher than the blade and the bevel knife sleeve on the bevel knife disc, so that the knives on the flat knife disc and the bevel knife disc contact with the flat knife sleeve and the bevel knife sleeve respectively, to avoid scratches at both ends of the flat end of the straw. Combined with the above, the cut straws are scratch-free and of high quality, which solves the problem that scratches are easy to appear on both ends of the polylactic acid thick straws after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0009] Figure 2 It is a schematic diagram of the overall top view structure of the utility model.

[0010] Figure 3 It is a cross-sectional schematic diagram of the transmission structure of the utility model.

[0011] Figure 4 It is a side structural schematic diagram of the utility model.

[0012] Notes on the figure markings: housing 101, cutting assembly 2, main shaft 201, flat-edge cutter disc 202, beveled cutter disc 203, flat-edge cutter sleeve 204, beveled cutter sleeve 2041, worm 205, worm wheel 206, guide rod 207, belt 208, pulley 209, axle 301, conveyor belt 302, transmission gear 303, gear 304, motor 305. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0014] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0015] See also Figures 1 to 4 , provided in one embodiment of the utility model, is a polylactic acid anti-scratch straw cutting machine, comprising a housing 101, and further comprising:

[0016] A cutting component 2, used for cutting the straw;

[0017] The cutting assembly 2 includes a main shaft 201, a flat-edge blade disc 202 and a beveled blade disc 203. The main shaft 201 is rotatably connected to the shell 101 on one side of the shell 101. The flat-edge blade disc 202 and the beveled blade disc 203 are fixedly connected to the main shaft 201, and the beveled blade of the beveled blade disc 203 is provided with a soft film.

[0018] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific flat-edge blade disc 202 and the beveled blade disc 203 described in the above embodiments. For example, the blades on the flat-edge blade disc 202 and the beveled blade disc 203 are fixed thereon by a detachable pressure plate. The purpose of this arrangement is to facilitate the disassembly and replacement of the blades in this way.

[0019] Specifically, a flat-edge knife sleeve 204 and an oblique-edge knife sleeve 2041 are fixedly connected to the housing 101 , and soft rubber rings are disposed in the flat-edge knife sleeve 204 and the oblique-edge knife sleeve 2041 .

[0020] Specifically, the distance between the blade 202 on the flat-edge cutter disc and the flat-edge cutter sleeve 204 is 5-10 mm higher than the distance between the blade and the bevel cutter sleeve 2041 on the bevel cutter disc 203 .

[0021] Specifically, a worm 205 is fixedly connected to the main shaft 201 , a worm wheel 206 is meshedly connected to one side of the worm 205 , a guide rod 207 is fixedly connected to the axis of the worm wheel 206 , and the guide rod 207 is rotatably connected to the housing 101 in the housing 101 .

[0022] For the above examples, those skilled in the art should be aware that when implementing the above technical solution, they are not limited to the specific worm 205 and worm wheel 206 described in the above embodiments. For example, the worm 205 and worm wheel 206 can be replaced by two bevel gears, and the two bevel gears are meshingly connected. The purpose of this arrangement is to facilitate the adjustment of the transmission ratio in this way.

[0023] Specifically, a gear 304 is fixedly connected to the guide rod 207 , and the gear 304 is meshedly connected with an output gear of the motor 305 , and the motor 305 is fixedly connected to the housing 101 .

[0024] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific guide rod 207 described in the above embodiments. For example, bearings are fixedly connected at both ends of the guide rod 207. The purpose of this arrangement is to reduce the friction of the guide rod 207 during rotation, thereby effectively extending its service life.

[0025] Specifically, the guide rod 207 is connected to the belt 208 via the pulley thereon, and the other end of the belt 208 is connected to the pulley 209 .

[0026] For the above example, those skilled in the art should be aware that when implementing the above technical solution, they are not limited to the specific belt 208 described in the above embodiment. For example, the belt 208 is made of a highly durable material that is not easily deformed. The purpose of this setting is to prevent the transmission performance from deteriorating due to deformation in this way.

[0027] Specifically, a wheel shaft 301 is fixedly connected to the axis of the pulley 209 , and the wheel shaft 301 is rotatably connected to the housing 101 .

[0028] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific axle 301 described in the above embodiments. For example, the axle 301 should be made of a high-durability material processed in one piece. The purpose of this setting is to prevent it from being broken by stress in this way.

[0029] Specifically, rollers are fixedly connected to the four wheel axles 301 , respectively. The rollers cooperate with each other to be transmission-connected to the conveyor belts 302 , and a certain distance is left between two conveyor belts 302 .

[0030] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific conveyor belt 302 described in the above embodiments. For example, a soft anti-slip rubber layer is provided on the conveyor belt 302. The purpose of this setting is to increase the pulling ability of the straw through the adsorption effect of the soft anti-slip rubber layer.

[0031] Specifically, the two wheel axles 301 are respectively fixedly connected with transmission gears 303 , and the two transmission gears 303 are meshed and connected with each other.

[0032] For the above example, those skilled in the art should know that when implementing the above technical solution, they are not limited to the specific transmission gear 303 described in the above embodiment. For example, the two transmission gears 303 are of the same size. The purpose of this setting is to facilitate the adjustment of the transmission ratio in this way.

[0033] In the embodiment of the utility model, the relevant technicians place the straw between the two conveyor belts 302 and start the motor 305 at the same time, so that the motor 305 drives the gear 304 meshing with its output gear to start rotating, so that the gear 304 drives the guide rod 207 fixedly connected to it to rotate synchronously, so that the pulley 209 starts to rotate synchronously with the guide rod 207 under the cooperation of the belt 208 connected to it, so that the pulley 209 drives the wheel axle 301 fixedly connected to it to start rotating synchronously, so that the multiple wheel axles 301 cooperate with each other to drive the conveyor belt 302 connected to it to start rotating. Thus, the straws placed between the two conveyor belts 302 are transported and transported to the knife sleeve. At the same time, the guide rod 207 drives the worm wheel 206 fixed thereon to rotate synchronously, so that the worm wheel 206 drives the worm 205 meshing with it to rotate synchronously, and the worm 205 drives the main shaft 201 fixed thereto to start rotating, so that the main shaft 201 drives the flat-edge knife disc 202 and the beveled knife disc 203 fixed thereon to start rotating, and the cutting tools on the flat-edge knife disc 202 and the beveled knife disc 203 successively contact the flat-edge knife sleeve 204 and the beveled knife sleeve 2041, and the straws are extruded and cut.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polylactic acid anti-scratch straw cutting machine, comprising a housing (101), characterized in that: Also includes: A cutting assembly (2), used for cutting the straw; The cutting assembly (2) comprises a main shaft (201), a flat-edge blade disc (202), a guide rod (207) and a bevel blade disc (203); the main shaft (201) is rotatably connected to the housing (101) at one side of the housing (101); the flat-edge blade disc (202) and the bevel blade disc (203) are respectively fixedly connected to the main shaft (201); a soft film is provided on the bevel blade of the bevel blade disc (203); and the guide rod (207) is rotatably connected to the housing (101) in the housing (101).

2. The polylactic acid anti-scratch straw cutting machine according to claim 1, characterized in that: A flat-edge knife sleeve (204) and an oblique-edge knife sleeve (2041) are fixedly connected to the housing (101), and soft rubber rings are provided in the flat-edge knife sleeve (204) and the oblique-edge knife sleeve (2041).

3. The polylactic acid anti-scratch straw cutting machine according to claim 1, characterized in that: The distance between the blade on the flat-edge knife disc (202) and the flat-edge knife sleeve (204) is 5-10 mm higher than that between the blade on the oblique-edge knife disc (203) and the oblique-edge knife sleeve (2041).

4. The polylactic acid anti-scratch straw cutting machine according to claim 3, characterized in that: A gear (304) is fixedly connected to the guide rod (207), the gear (304) is meshedly connected to an output gear of a motor (305), and the motor (305) is fixedly connected to the housing (101).

5. The polylactic acid anti-scratch straw cutting machine according to claim 4, characterized in that: The guide rod (207) is connected to a belt (208) via a pulley thereon, and the other end of the belt (208) is connected to a pulley (209).

6. The polylactic acid anti-scratch straw cutting machine according to claim 5, characterized in that: A wheel shaft (301) is fixedly connected to the axis of the pulley (209), and the wheel shaft (301) is rotatably connected to the housing (101).

7. The polylactic acid anti-scratch straw cutting machine according to claim 6, characterized in that: Rollers are fixedly connected to the four wheel axles (301) respectively, and the rollers cooperate with each other to be transmission-connected to the conveyor belts (302), and a certain distance is left between two conveyor belts (302).

8. The polylactic acid anti-scratch straw cutting machine according to claim 6, characterized in that: The two wheel shafts (301) are respectively fixedly connected with transmission gears (303), and the two transmission gears (303) are meshed and connected with each other.

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