CN113426324A

CN113426324A - Paper straw forming device

Info

Publication number: CN113426324A
Application number: CN202110804942.5A
Authority: CN
Inventors: 丁泽成; 王文广; 周东珊; 蒋义赏; 彭伟
Original assignee: Zhejiang Yasha Decoration Co Ltd
Current assignee: Zhejiang Yasha Decoration Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-09-24

Abstract

The utility model provides a paper straw forming device, is in including the cauldron body, setting the discharge opening and the setting of cauldron body lower extreme are in the internal (mixing) shaft of cauldron is still including setting up the cauldron is internal and be used for fixing the cavity spacing ring unit, the setting of (mixing) shaft are in cavity spacing ring unit lower surface just is used for opening/closing the shutoff post unit, the setting of discharge opening are in heating wire unit and the setting in the cavity spacing ring unit are in the discharge opening lower extreme is used for promoting the bell and spigot joint unit of shutoff post unit reaches the stability of (mixing) shaft in the improvement device through the mode that sets up cavity spacing ring unit, shutoff post unit, heating wire unit and bell and spigot joint unit, makes the abundant even effect of reaction system stirring.

Description

Paper straw forming device

Technical Field

The invention belongs to the technical field of PLA film production, and particularly relates to a paper straw forming device.

Background

In order to solve the problem that the plastic straw is not degradable and pollutes the environment, the paper straw is produced at the same time. Most of the existing paper straws are directly rolled into a tubular structure by paper. The paper is made of fine fabric fibers, and a plurality of gaps exist among the fibers, so that when liquid contacts the surface of the paper, the liquid is absorbed into the paper due to the capillary phenomenon. When the small materials such as the pearl, the taro and the like are soaked and expanded in liquid, water molecules in the small materials are easy to run into the fine inner wall of the raw material of the paper straw, so that the small materials are easy to stick. The original plastic straw is taken as a polymer, has a stable structure, and has poor water absorbability without the problem.

In order to solve the problem of moisture absorption and softening of the paper suction pipe, the prior art such as the document with the application number of CN201921292238.0 discloses a paper suction pipe, which comprises a paper tubular body; the edge-curling joint of the paper tubular body is provided with an adhesive layer; an inner oil immersion layer is arranged on the inner surface of the paper tubular body; an outer oil immersion layer is arranged on the outer surface of the paper tubular body. Although the technical scheme solves the problem of soaking resistance of the paper straw, the process steps of the multi-layer straw structure are more complicated, the processing process requirement is higher, and the cost is higher.

The technical scheme that the PLA film is used as the waterproof layer of the paper straw is adopted by the inventor, the PLA layer is respectively arranged on the inner side and the outer side of the paper layer, the waterproof performance of the whole paper straw can be reduced, the cost of the whole straw can be controlled, and the production standard of the PLA film is controlled. The document with the application number of CN201920696478.0 discloses a PLA film raw material mixing and extruding system, which comprises a mixing tank and an extruder, wherein the mixing tank comprises a mixing tank body, a raw material conveying mechanism and a mixing mechanism; the extruder includes the organism, and the feed end of organism is equipped with the feeder hopper, and the compounding export of the compounding jar body communicates with each other in passing through pipeline and feeder hopper, and the discharge end of organism is equipped with extrusion die, and vertical direction is equipped with unloading auger blade in the feeder hopper. However, this device has the following problems: because the height of the tank body of the reaction tank is high, and the motor for driving the stirring rod to rotate is arranged at the upper end of the tank body, in the process of stirring materials by the stirring rod, the stirring rod part at the middle lower part of the reaction tank is far away from the motor, so that the shaking degree of the stirring rod part far away from the motor is larger, the problem that the stirring degree of reactants in the reaction tank is different is caused, and in serious cases, the stirring teeth on the stirring rod even collide with the tank body of the reaction tank, so that parts are damaged; and with the increase of the service life of the device, the shaking degree of the stirring rod becomes more serious, and the maintenance frequency and the cost are increased.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a novel paper straw, which is characterized in that a PLA layer is disposed inside and outside a paper layer, so that the paper straw is environmentally friendly, degradable and waterproof; the invention also aims to provide a paper straw forming device, which achieves the effects of improving the stability of a stirring shaft in the device and enabling a reaction system to be stirred fully and uniformly by arranging the hollow limiting ring unit, the plugging column unit, the heating wire unit and the sleeve unit.

In order to achieve the first object of the invention, the technical scheme of the invention is as follows:

a novel paper straw comprises a paper layer and PLA layers arranged on the inner side and the outer side of the paper layer.

In order to achieve the second object of the present invention, the technical solution of the present invention is as follows:

the utility model provides a paper straw forming device, is in including the cauldron body, setting the discharge opening and the setting of cauldron body lower extreme are in the internal (mixing) shaft of cauldron, still including setting up the cauldron is internal and be used for fixing the cavity spacing ring unit, the setting of (mixing) shaft are in cavity spacing ring unit lower surface just is used for opening/closing the shutoff post unit, the setting of discharge opening are in heating wire unit and setting in the cavity spacing ring unit are in the discharge opening lower extreme is used for promoting the bell and spigot joint unit of shutoff post unit.

As a further preferable mode of the present invention, the hollow limiting ring unit includes a limiting ring sleeved on a lower end of the stirring shaft, an annular cavity provided on the limiting ring and used for mounting the heating wire unit, an outlet hole provided on the annular cavity and used for allowing the heating wire unit to pass out, a limiting column provided on an inner bottom surface of the kettle body, a connecting cylinder provided on the lower end and sleeved with the limiting column, and a tension spring provided between the limiting column and the connecting cylinder.

As a further preferred aspect of the present invention, the plugging column unit includes a reverse truncated cone-shaped main body disposed in the discharge hole, and a cavity provided in the reverse truncated cone-shaped main body and configured to receive the heating wire unit that passes through the outlet hole.

As a further preferred aspect of the present invention, the heating wire unit includes a spiral heating wire disposed in the annular chamber, and connecting wires disposed at both ends of the spiral heating wire and passing through the outlet hole and the channel.

As a further preferable aspect of the present invention, the pipe sleeving unit includes a fixed pipe disposed on the lower surface of the kettle body and connected to the discharge hole, a movable pipe disposed at the lower end of the fixed pipe and sleeved outside the fixed pipe, a radial plate disposed on the movable pipe and opening the discharge hole by pushing the inverted circular truncated cone-shaped main body upward, and a wire guide hole disposed on the fixed pipe and through which the connection wire passes.

As a further preferable aspect of the present invention, the socket unit further includes a fixed limiting ring disposed on an inner wall of the fixed pipe, an annular groove disposed on an inner wall of the movable pipe, a movable limiting ring disposed on the annular groove, and a clamping elastic ring portion disposed at a side end of the movable limiting ring portion and configured to clamp the fixed pipe.

As a further preferred aspect of the present invention, the movable stopper ring portion includes a mounting ring provided in the annular groove, a first stud provided in the annular groove and used to fix the mounting ring, a projecting ring provided at an end of the mounting ring and engaged with an inner wall of the movable tube, and a mounting annular groove provided at an end of the projecting ring and used to mount the clamping elastic ring portion.

As a further preferred aspect of the present invention, the clamping elastic ring portion includes a connection ring provided on the mounting annular groove, an elastic ring provided at a side end of the connection ring and clamping the fixed pipe, and a second stud provided on the mounting annular groove and fixing the elastic ring.

As a further preferable mode of the present invention, the hollow retainer ring unit further includes balls provided on an inner circumferential wall of the retainer ring and configured to clamp the stirring shaft.

In conclusion, the invention has the following beneficial effects:

compared with a pure PLA straw, the novel paper straw prepared by using the PLA as the waterproof film of the paper straw has the advantages that the cost is greatly reduced, meanwhile, the PLA is used as an environment-friendly degradable material, the environmental burden is not caused, and the market demand is met.

The production equipment designed by the invention integrates the functions of fixing the stirring shaft, controlling the opening/closing state of the discharge hole and heating materials, and has the advantages of compact structure, convenience in mounting and dismounting, low maintenance cost and high safety.

Drawings

FIG. 1 is a cross-sectional view of a paper drinking straw according to the present invention.

FIG. 2 is a schematic structural view of the production apparatus of the present invention.

Fig. 3 is a schematic diagram of the position structure of the hollow spacing ring unit and the plugging column unit in the invention.

Fig. 4 is a schematic structural view of a heating wire unit according to the present invention.

Fig. 5 is a schematic view of the position structure of the bell and spigot unit of the invention.

Fig. 6 is a schematic view of a partial structure of the bell and spigot unit of the invention.

Description of the drawings: the device comprises a paper layer 11, a PLA layer 12, a kettle body 13, a discharge hole 14, a stirring shaft 15, a rubber ring 16, a hollow limiting ring unit 1, a limiting ring 101, an annular cavity 102, an outlet hole 103, a limiting column 104, a connecting cylinder 105, a tension spring 106, a ball 107, a plugging column unit 2, an inverted frustum-shaped main body 201, a cavity channel 202, a heating lead unit 3, a spiral heating wire 301, a connecting lead 302, a sleeve unit 4, a fixed pipe 401, a movable pipe 402, a radial plate 403, a lead hole 404, a fixed limiting ring 405, an annular groove 406, a movable limiting ring portion 407, an installation ring 407a, a first stud 407b, a bulge ring 407c, an installation annular groove 407d, a clamping elastic ring portion 408, a connecting ring 408a, an elastic ring 408b and a second stud 408 c.

Detailed Description

Examples

A novel paper straw, as shown in figure 1, comprises a paper layer 11, and further comprises PLA layers 12 arranged on the inner side and the outer side of the paper layer 11. In this embodiment, the thickness of paper layer 11 is 0.1-0.3cm, the thickness on PLA layer 12 is 0.02-0.05cm can reach water-proof effects, and PLA is as the degradable material of environmental protection simultaneously, can not cause the environmental burden, and for pure PLA straw, this novel paper straw's cost greatly reduced accords with the demand in market simultaneously.

The utility model provides a paper straw forming device, as shown in figure 2, includes the cauldron body 13, sets up the discharge opening 14 of cauldron body 13 lower extreme, and set up (mixing) shaft 15 in the cauldron body 13, still including set up in the cauldron body 13 and be used for fixing the cavity spacing ring unit 1 of (mixing) shaft 15, set up and be in cavity spacing ring unit 1 lower surface just is used for opening/close shutoff post unit 2 of discharge opening 14, set up and be in heating wire unit 3 in the cavity spacing ring unit 1, and set up and be in the discharge opening 14 lower extreme is used for promoting the bell and spigot unit 4 of shutoff post unit 2.

In the prior art, a limiting rod used for limiting and fixing the lower end of the stirring rod is generally added on the inner wall of the reaction kettle, but the method can increase the difficulty of material discharging, meanwhile, a heating oil coil is generally and directly arranged on the inner wall of the kettle body in the reaction kettle for preparing the PLA to heat the material, and the heating oil coil is in direct contact with the material in the heating equipment, so that the material is easily adhered to the heating oil coil, the surface of the coil is pasted, the heating effect is influenced, and even the coil is damaged.

In this embodiment, for the problem of shaking of the stirring shaft 15, a hollow spacing ring unit 1 for fixing and spacing the lower end of the stirring shaft 15 is provided in this embodiment to improve the uniform stirring effect of the stirring shaft 15, and meanwhile, the heating wire unit 3 is provided in the hollow spacing ring unit 1 to heat the material in the kettle body, and the heating wire unit 3 is not in contact with the material, so that the material is prevented from adhering to the heating wire unit 3, and the heating wire unit 3 is not affected; simultaneously 1 lower extreme setting of cavity spacing ring unit is used for steerable the discharge opening 14 is opened/is closed shutoff post unit 2 avoids the staff when the material stirring is accomplished and needs the unloading, needs the discharge opening 14 of direct contact cauldron body department, and the material of high temperature can lead to the dangerous condition of staff scald. In this embodiment, each component unit is based on the hollow spacing ring unit 1, and integrates the functions of fixing the stirring shaft 15, controlling the opening/closing state of the discharge hole 14, and heating materials, and has the advantages of compact structure, convenient assembly and disassembly, low maintenance cost, and high safety.

In this embodiment, as shown in fig. 3, the hollow limiting ring unit 1 includes a limiting ring 101 sleeved on the lower end of the stirring shaft 15, an annular cavity 102 disposed on the limiting ring 101 and used for installing the heating wire unit 3, an outlet 103 disposed on the annular cavity 102 and used for allowing the heating wire unit 3 to pass out, a limiting column 104 disposed on the inner bottom surface of the kettle body 13, a connecting cylinder 105 disposed on the lower end and sleeved with the limiting column 104, and a tension spring 106 disposed between the limiting column 104 and the connecting cylinder 105. The hollow spacing ring unit 1 further comprises balls 107 arranged on the inner annular wall of the spacing ring 101 and used for clamping the stirring shaft 15.

In this embodiment, the inner annular surface of the limiting ring 101 is used for inserting the stirring shaft 15, and the balls 107 are arranged on the inner annular wall for clamping the stirring shaft 15, so that the stirring shaft 15 is sufficiently clamped in the annular direction, but the rotation of the stirring shaft 15 is not influenced; the annular cavity 102 is a cavity arranged in the limit ring 101 and used for installing the heating lead unit 3, and heat generated after the heating lead unit 3 works is transferred to the surface of the limit ring 101 through heat radiation, so that the limit ring 101 is made of a metal material with high heat conductivity; the heating wire unit 3 adopted in the embodiment is an electric heating wire, so the outlet 103 is arranged for connecting a wire penetrating out to an external power supply, and the penetrating wire is not contacted with a material, so that the safety problem is avoided; in this embodiment, since the plugging column unit 2 is installed on the lower surface of the stop collar 101, the whole hollow stop collar unit 1 can move up and down by using the stirring shaft 15 as a central axis, and the stop column 104, the connecting cylinder 105 and the tension spring 106 form a buffer part, in this embodiment, the lower surface of the stop collar 101 is provided with two identical buffer parts, and the buffer parts function as: firstly, the initial state of the limiting ring 101, namely the state that the plugging column unit 2 closes the discharge hole 14, is maintained under the action of no external force; secondly, when the plugging column unit 2 is lifted upwards under the action of external force, the tension spring 106 is stretched, so that the limit ring 101 is lifted smoothly, and the plugging column unit 2 is driven to lift, so that the discharge hole 14 is opened; thirdly, after the external force action is withdrawn, the tension spring 106 contracts to pull the limiting ring 101 to descend and return to the initial state, and the plugging column unit 2 closes the discharge hole 14 again.

In the present embodiment, as shown in fig. 3, the plugging column unit 2 includes a reverse truncated cone-shaped main body 201 disposed in the discharge hole 14, and a cavity 202 disposed in the reverse truncated cone-shaped main body 201 and used for installing the heating wire unit 3 coming out from the outlet hole 103.

In the embodiment, the inverted round platform-shaped structure is more beneficial to the rapid switching of the opening and closing states of the discharge hole 14, and meanwhile, the rubber ring 16 is arranged on the inner wall of the discharge hole 14 to avoid material leakage; the channel 202 is provided to protect the heating wire unit 3 from contact with falling material.

In the present embodiment, as shown in fig. 4, the heating wire unit 3 includes a spiral heating wire 301 disposed in the annular chamber 102, and connecting wires 302 disposed at both ends of the spiral heating wire 301 and passing through the outlet hole 103 and the channel 202. In this embodiment, the spiral heating wire 301 is a commercially available heating wire with a large electric resistance; the connecting wires 302 are small-resistance wires coated with a coating.

In this embodiment, as shown in fig. 5, the pipe sleeving unit 4 includes a fixed pipe 401 disposed on the lower surface of the kettle 13 and connected to the discharge hole 14, a movable pipe 402 disposed at the lower end of the fixed pipe 401 and sleeved outside the fixed pipe 401, a radial plate 403 disposed on the movable pipe 402 and used for opening the discharge hole 14 by pushing the inverted circular truncated cone-shaped main body 201 upward, and a wire guide 404 disposed on the fixed pipe 401 and used for passing through the connection wire 202.

In this embodiment, the length of the inverted circular truncated cone-shaped main body 201 exceeds the lowest end of the fixed pipe 401 and enters the movable pipe 402, and when the movable pipe 402 is pushed to move upwards, the radial plate 403 arranged on the inner wall of the movable pipe 402 pushes the inverted circular truncated cone-shaped main body 201 and opens the discharge hole 14; the wire hole 404 is used for passing through the connecting wire 202 to connect with an external power supply; in this embodiment, the radial plate 403 is preferably a circular plate with the same area as the lower surface of the inverted circular truncated cone-shaped main body 201 at the center, and two connecting strips are arranged at two ends of the circular plate and connected with the inner wall of the movable pipe 402, so that the projection area of the radial plate 403 is reduced, and the influence on material blanking is reduced.

In this embodiment, as shown in fig. 6, the ferrule unit 4 further includes a fixed limiting ring 405 disposed on the inner wall of the fixed pipe 401, an annular groove 406 disposed on the inner wall of the movable pipe 402, a movable limiting ring 407 disposed on the annular groove 406, and a clamping elastic ring 408 disposed at a side end of the movable limiting ring 407 and configured to clamp the fixed pipe 401. The movable stopper ring portion 407 includes a mounting ring 407a provided in the annular groove 406, a first stud 407b provided in the annular groove 406 to fix the mounting ring 407a, a protruding ring 407c provided at an end of the mounting ring 407a to be engaged with an inner wall of the movable tube 402, and a mounting annular groove 407d provided at an end of the protruding ring 407c to mount the clamping elastic ring portion 408. The clamping elastic ring portion 408 includes a coupling ring 408a provided on the mounting annular groove 407d, an elastic ring 408b provided at a side end of the coupling ring 408a and clamping the fixed pipe 401, and a second stud 408c provided on the mounting annular groove 407d and fixing the elastic ring 408 b.

In this embodiment, the fixed stop collar 405 is used to prevent the movable tube 402 from separating from the fixed tube 401; the annular groove 406 is formed in the inner side wall of the top end of the movable pipe 402, and the mounting ring 407a, the first stud 407b and the protruding ring 407c form a structure for maintaining the position of the movable pipe 402, and meanwhile, the detachable structure is more convenient to assemble and replace; while the structure of the connection ring 408a, the elastic ring 408b and the second stud 408c installed on the installation annular groove 407d serves first to further clamp the movable tube 402 to maintain the position of the movable tube 402, the elastic ring 408b is liable to lose the clamping effect of elasticity on the movable tube 402 after long-term use, so that the detachable second stud 408c facilitates the replacement of the elastic ring 408 b; meanwhile, in the present embodiment, the second stud 408c passes through the connection ring 408a and the protruding ring 407 and protrudes from the lower surface of the protruding ring 407, which is advantageous in that, after the movable tube 402 is lifted up to the target position, the length of the second stud 408c protruding from the lower surface of the protruding ring 407 is adjusted to make the second stud 408c abut against the upper surface of the fixed limiting ring 405, so that the movable tube 402 is supported and does not slide down, and the elastic ring 408b is assisted to strengthen the fixing effect on the movable tube 402.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a paper straw forming device, includes the cauldron body (13), sets up discharge opening (14) and setting of cauldron body (13) lower extreme are in (mixing) shaft (15) in the cauldron body (13), its characterized in that, still including setting up in the cauldron body (13) and be used for fixing cavity spacing ring unit (1), the setting of (mixing) shaft (15) are in cavity spacing ring unit (1) lower surface just is used for opening/closing shutoff post unit (2), the setting of discharge opening (14) are in heating wire unit (3) and setting in cavity spacing ring unit (1) are in discharge opening (14) lower extreme is used for promoting cup joint pipe unit (4) of shutoff post unit (2).

2. The paper straw forming device according to claim 2, wherein the hollow limiting ring unit (1) comprises a limiting ring (101) sleeved at the lower end of the stirring shaft (15), an annular cavity (102) arranged on the limiting ring (101) and used for mounting the heating wire unit (3), an outlet hole (103) arranged on the annular cavity (102) and used for enabling the heating wire unit (3) to penetrate out, a limiting column (104) arranged on the inner bottom surface of the kettle body (13), a connecting cylinder (105) arranged at the lower end and sleeved with the limiting column (104), and a tension spring (106) arranged between the limiting column (104) and the connecting cylinder (105).

3. The paper straw forming device according to claim 3, wherein the sealing column unit (2) comprises a reverse truncated cone-shaped body (201) arranged in the discharge hole (14), and a cavity (202) arranged in the reverse truncated cone-shaped body (201) and used for installing the heating wire unit (3) which penetrates out of the outlet hole (103).

4. The paper straw forming device according to claim 4, wherein the heating wire unit (3) comprises a spiral heating wire (301) disposed in the annular chamber (102), and connecting wires (302) disposed at both ends of the spiral heating wire (301) and passing through the outlet hole (103) and the channel (202).

5. The paper straw forming device according to claim 5, wherein the pipe sleeving unit (4) comprises a fixed pipe (401) arranged on the lower surface of the kettle body (13) and connected with the discharge hole (14), a movable pipe (402) arranged at the lower end of the fixed pipe (401) and sleeved outside the fixed pipe (401), a radial plate (403) arranged on the movable pipe (402) and used for opening the discharge hole (14) in a manner of pushing the inverted cone-shaped main body (201) upwards, and a wire guide hole (404) arranged on the fixed pipe (401) and used for penetrating out of the connecting wire (202).

6. The paper straw forming device according to claim 6, wherein the sleeving unit (4) further comprises a fixed limiting ring (405) arranged on the inner wall of the fixed pipe (401), an annular groove (406) arranged on the inner wall of the movable pipe (402), a movable limiting ring part (407) arranged on the annular groove (406), and a clamping elastic ring part (408) arranged at the side end of the movable limiting ring part (407) and used for clamping the fixed pipe (401).

7. The paper straw forming device according to claim 7, wherein the movable limit ring portion (407) comprises a mounting ring (407 a) arranged on the annular groove (406), a first stud (407 b) arranged on the annular groove (406) and used for fixing the mounting ring (407 a), a protruding ring (407 c) arranged at the end of the mounting ring (407 a) and clamped with the inner wall of the movable tube (402), and a mounting annular groove (407 d) arranged at the end of the protruding ring (407 c) and used for mounting the clamping elastic ring portion (408).

8. The paper straw forming device according to claim 8, wherein the clamping elastic ring portion (408) comprises a connecting ring (408 a) disposed on the mounting annular groove (407 d), an elastic ring (408 b) disposed at a side end of the connecting ring (408 a) and used for clamping the fixed tube (401), and a second stud (408 c) disposed on the mounting annular groove (407 d) and used for fixing the elastic ring (408 b).

9. A paper straw forming device according to claim 3, characterized in that the hollow stop collar unit (1) further comprises balls (107) disposed on the inner annular wall of the stop collar (101) and used for clamping the stirring shaft (15).