Heating crystallization device for polylactic acid straw production

Abstract

The utility model relates to the technical field of polylactic acid straw processing equipment, in particular to a heating crystallization device for polylactic acid straw production, which comprises a crystallization device body and a controller, the controller is arranged on one side of the crystallization device body, and a conveying belt is arranged in the crystallization device body in a penetrating manner. The device comprises a conveying belt, a discharging mechanism is arranged below one end of the conveying belt, a material storage mechanism is arranged below the discharging mechanism, the discharging mechanism comprises a discharging hopper, a discharging pipe, a baffle and a first telescopic rod, and the material storage mechanism comprises a material storage box, a material storage drawer, a pressing rod and a second telescopic rod. And the position of the material storage mechanism can be automatically adjusted, the adjustment steps are simple and convenient, the automation degree of the device is improved, and the collection efficiency and the production efficiency of the polylactic acid suction pipes are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polylactic acid straw processing equipment, and specifically discloses a heating crystallization device used for the production of polylactic acid straws. Background Art

[0002] Polylactic acid straws are made of starch extracted from plants such as corn, wheat and cassava as the main raw material and can be completely degraded. In order to improve the high temperature resistance of polylactic acid straws, reduce costs, and pass food contact safety certification, the polylactic acid straws need to be heated and crystallized during processing. A Chinese patent with patent number CN219381700U discloses an immersion crystallization device for polylactic acid straws, including a body, a feed port is provided on one side of the body, a control cabinet is provided on the side of the outer surface of the body adjacent to the feed port, a discharge conveyor belt is provided on the side of the body away from the feed port, an anti-fall device is provided on the top of the outer surface of the body on one side of the control cabinet, and a sorting and storage device is provided at the bottom of the discharge conveyor belt, and the sorting and storage device includes a connecting block and a storage frame. The submerged crystallization device of the polylactic acid straws is provided with a sorting storage device, and under the action of the drop hopper, the straws can fall from the discharge frame and then fall between the two partition plates in the storage frame, so that they can be sorted in order, and then under the action of the rectangular slide and the rectangular slide, the storage frame can move, and then the materials can be unloaded and sorted in sequence without manual sorting. However, the above-mentioned crystallization device has a complex structure, and the relevant components in the device are inconvenient to install, use and maintain, and the polylactic acid straws stored in the storage basket are inconvenient to take out, which affects the collection efficiency of the polylactic acid straws and further affects the production efficiency of the polylactic acid straws. In addition, the position of the storage basket in the above-mentioned crystallization device needs to be adjusted manually, and the adjustment steps are complicated, which affects the degree of automation of the device, is not conducive to saving labor costs, and is relatively inconvenient. The utility model proposes a heating crystallization device for the production of polylactic acid straws. Utility Model Content

[0003] The utility model aims to provide a heating crystallization device for the production of polylactic acid straws, which has a simple structure and is easy to install, use and maintain. It is convenient to take out the polylactic acid straws stored in the storage mechanism, and can automatically adjust the position of the storage mechanism. The adjustment steps are simple, thereby improving the degree of automation of the device and improving the collection efficiency and production efficiency of the polylactic acid straws.

[0004] The utility model is realized by the following technical solutions:

[0005] A heating crystallization device for producing polylactic acid straws, comprising a crystallization device body and a controller, wherein the controller is arranged on one side of the crystallization device body, a conveyor belt is arranged inside the crystallization device body, a feeding mechanism is arranged below one end of the conveyor belt, a storage mechanism is arranged below the feeding mechanism, the feeding mechanism comprises a feeding hopper, a feeding pipe, a baffle and a first telescopic rod, and the storage mechanism comprises a storage box, a storage drawer, a pressure rod and a second telescopic rod.

[0006] As a further configuration of the above scheme, two first supporting legs and a second supporting leg are respectively provided at both ends of the conveyor belt, and one side of the second supporting leg is connected to a limiting plate. The above design can provide stable support for the conveyor belt, facilitate the installation of the unloading mechanism, and can limit the position of the storage mechanism to facilitate material storage.

[0007] As a further configuration of the above scheme, both sides of the lower hopper are connected with a first bracket, the first bracket is detachably connected to the second supporting leg, a lower port is provided at the bottom of the lower hopper, a lower pipe is provided below the lower port, a connecting hole is provided on one side of the lower pipe, a baffle is provided through the inside of the connecting hole, a first telescopic rod is connected to one side of the baffle, a second bracket is connected to the outer side of the first telescopic rod, and the second bracket is connected to the second supporting leg. The above design can store the polylactic acid straws transported on the conveyor belt in the lower hopper and discharge them through the lower port and the lower pipe. In the process of adjusting the position of the storage mechanism, the polylactic acid straws can be prevented from falling off, and the straws are discharged into the storage mechanism after the position is adjusted.

[0008] As a further configuration of the above scheme, a plurality of partitions are equidistantly arranged inside the storage box, a plurality of rollers are connected to the bottom of the storage box, an armrest is arranged at one end of the storage box, a plurality of first through holes are arranged at both ends of the armrest, a connecting shaft is penetrated inside the first through hole, a nut is threadedly connected to the outer side of the connecting shaft, and a plurality of placement holes are arranged on one side of the storage box. The above design facilitates the adjustment of the position of the storage mechanism and the height of the armrest and fixes it, and can separate a plurality of storage drawers to avoid the clutter of polylactic acid straws.

[0009] As a further configuration of the above scheme, a storage drawer is provided inside the placement hole, and a second through hole is provided above the side of the storage drawer close to the placement hole, both ends of the storage box are provided with protrusions, and a card slot is provided inside the protrusions, and a pressure rod is provided on the side of the storage box close to the placement hole, and a plurality of limit blocks are provided on one side of the pressure rod, and card blocks are provided at both ends of the pressure rod, and the limit blocks and the card blocks are respectively engaged with the second through hole and the card slot, and a connecting seat is connected to the end of the storage box away from the connecting shaft. The above design can prevent the storage drawer from falling into the storage box during the storage and transportation process. After the polylactic acid straws are transported to the storage point, the storage drawer is pulled out of the storage box through the second through hole, so as to facilitate the removal of the polylactic acid straws in the storage drawer.

[0010] As a further configuration of the above scheme, a second telescopic rod is provided on one side of the connecting seat, the telescopic end of the second telescopic rod is detachably connected to the connecting seat, and a third bracket is connected to the outer side of the second telescopic rod. The above design can automatically adjust the position of the material storage box and its connecting parts. After the material storage is completed, the material storage box and other parts are pushed out from under the conveyor belt, and the connection between the second telescopic rod and the connecting seat is disconnected, so as to facilitate the transportation of polylactic acid straws by the material storage box. Beneficial Effects

[0011] During use, the combination of the feeding tube, the baffle and the first telescopic rod in the feeding mechanism can centrally store the heated and crystallized polylactic acid straws transported by the conveyor belt. When the storage box is adjusted to a suitable position, the first telescopic rod is used to pull the baffle out of the connecting hole, and the polylactic acid straws are discharged from the long strip feeding tube into the storage drawer. After a storage drawer is full, the baffle is pushed back into the connecting hole to prevent the polylactic acid straws from falling and limit the direction of the polylactic acid straws. The combination of the handrail, the first through hole, the connecting shaft and the nut is convenient for adjustment. The height of the handrail is adjusted and fixed to prevent the handrail from affecting the position adjustment of the storage box. The combination of multiple baffles and mounting holes can separate multiple storage drawers. The design of the second through hole on one side of the storage drawer can be connected with the limit block on one side of the pressure rod to limit the position of the storage drawer, thereby preventing the storage drawer from falling out of the storage box during the process of collecting polylactic acid straws. After the polylactic acid straws are transported to the storage point, the function of the handle is used to facilitate workers to pull the storage drawer out of the storage box through the second through hole, thereby providing convenience for taking out the polylactic acid straws from the storage drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 is a perspective view of the utility model;

[0014] Figure 2 It is a perspective view of the feeding mechanism in the utility model;

[0015] Figure 3 It is a combined diagram of the lower hopper, the first bracket and the lower feed pipe in the utility model;

[0016] Figure 4 It is a combined diagram of the middle baffle and the first telescopic rod of the utility model;

[0017] Figure 5 It is a perspective view of the material storage mechanism in the utility model;

[0018] Figure 6 It is a combined diagram of the collecting basket, the partition, the protrusion and the connecting seat in the utility model;

[0019] Figure 7 It is a perspective view of the material storage drawer in the utility model;

[0020] Figure 8 It is a combination diagram of the middle pressure rod, the limit block and the clamping block of the utility model.

[0021] In the figure: 1. crystallization device body; 2. controller; 3. conveyor belt; 4. material discharge mechanism; 5. material storage mechanism; 31. first supporting leg; 32. second supporting leg; 321. limit plate; 41. material discharge hopper; 411. material discharge port; 412. first bracket; 42. material discharge pipe; 43. connecting hole; 44. baffle; 45. first telescopic rod; 46. second bracket; 51. material storage box; 511. partition; 512. roller; 513. connecting shaft; 514. placement hole; 52. handrail; 521. first through hole; 522. nut; 53. material storage drawer; 531. second through hole; 54. protrusion; 541. slot; 55. pressure rod; 551. limit block; 552. block; 56. connecting seat; 57. second telescopic rod; 58. third bracket. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 8 , and describes the application in detail with reference to embodiments.

[0024] The embodiment discloses a heating crystallization device for the production of polylactic acid straws, comprising a crystallization device body 1 and a controller 2. The controller 2 is arranged on one side of the crystallization device body 1, a conveyor belt 3 is arranged through the interior of the crystallization device body 1, a feeding mechanism 4 is arranged below one end of the conveyor belt 3, a storage mechanism 5 is arranged below the feeding mechanism 4, the feeding mechanism 4 comprises a feeding hopper 41, a feeding pipe 42, a baffle 44 and a first telescopic rod 45, and the storage mechanism 5 comprises a storage box 51, a storage drawer 53, a pressure rod 55 and a second telescopic rod 57.

[0025] like Figure 1 As shown, two first supporting legs 31 and a second supporting leg 32 are respectively provided at both ends of the conveyor belt 3, and one side of the second supporting leg 32 is connected to a limiting plate 321, which can provide stable support for the conveyor belt 3, facilitate the installation of the unloading mechanism 4, and limit the position of the storage mechanism 5 to facilitate material storage.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, both sides of the lower hopper 41 are connected with a first bracket 412, and the first bracket 412 is detachably connected to the second supporting leg 32. A lower feeding port 411 is provided at the bottom of the lower hopper 41, and a lower feeding pipe 42 is provided below the lower feeding port 411. A connecting hole 43 is provided on one side of the lower feeding pipe 42, and a baffle 44 is provided inside the connecting hole 43. A first telescopic rod 45 is connected to one side of the baffle 44, and a second bracket 46 is connected to the outer side of the first telescopic rod 45. The second bracket 46 is connected to the second supporting leg 32, so that the polylactic acid straws transported on the conveyor belt 3 can be stored in the lower hopper 41 and discharged through the lower feeding port 411 and the lower feeding pipe 42. In the process of adjusting the position of the storage mechanism 5, the polylactic acid straws can be prevented from falling. After the position is adjusted, the straws are discharged into the storage mechanism 5.

[0027] like Figure 1 , Figure 5 and Figure 6As shown, a plurality of partitions 511 are equidistantly arranged inside the storage box 51, a plurality of rollers 512 are connected to the bottom of the storage box 51, an armrest 52 is arranged at one end of the storage box 51, a plurality of first through holes 521 are arranged at both ends of the armrest 52, a connecting shaft 513 is penetrated inside the first through hole 521, a nut 522 is threadedly connected to the outer side of the connecting shaft 513, a plurality of placement holes 514 are arranged on one side of the storage box 51, which is convenient for adjusting the position of the storage mechanism 5 and adjusting and fixing the height of the armrest 52, and can separate a plurality of storage drawers 53 to avoid the clutter of polylactic acid straws.

[0028] like Figure 1 , Figure 5 , Figure 7 and Figure 8 As shown, a material storage drawer 53 is provided inside the placement hole 514, and a second through hole 531 is provided above the side of the material storage drawer 53 close to the placement hole 514. Both ends of the material storage box 51 are provided with protrusions 54, and a card slot 541 is provided inside the protrusion 54. A pressure rod 55 is provided on the side of the material storage box 51 close to the placement hole 514, and a plurality of limit blocks 551 are provided on one side of the pressure rod 55. Both ends of the pressure rod 55 are provided with card slots. Block 552, the limit block 551 and the card block 552 are respectively engaged with the second through hole 531 and the card slot 541, and the end of the storage box 51 away from the connecting shaft 513 is connected with a connecting seat 56, which can prevent the storage drawer 53 from falling out of the storage box 51 during the storage and transportation process. After the polylactic acid straws are transported to the storage point, the storage drawer 53 is pulled out of the storage box 51 through the second through hole 531, which facilitates the removal of the polylactic acid straws in the storage drawer 53.

[0029] like Figure 1 , Figure 5 and Figure 6 As shown, a second telescopic rod 57 is provided on one side of the connecting seat 56, and the telescopic end of the second telescopic rod 57 is detachably connected to the connecting seat 56. The outer side of the second telescopic rod 57 is connected to a third bracket 58, which can automatically adjust the position of the storage box 51 and its connecting parts. After the material storage is completed, the storage box 51 and other parts are pushed out from under the conveyor belt 3, and the connection between the second telescopic rod 57 and the connecting seat 56 is disconnected, so as to facilitate the storage box 51 to transport the polylactic acid straws.

[0030] The heating crystallization device for the production of polylactic acid straws disclosed in this embodiment uses the controller 2 to control the extension of the second telescopic rod 57 before use, holds the handrail 52 to push the storage box 51 between the two limit plates 321, so that the storage drawer 53 close to one end of the connecting seat 56 is located directly below the discharge tube 42, and the telescopic end of the second telescopic rod 57 is connected to the connecting seat 56, and the two nuts 522 are rotated to separate the nuts 522 from the connecting shaft 513, and the handrail 52 is separated from the connecting shaft 513. After the two first through holes 521 at the upper end of the handrail 52 are respectively connected to the connecting shaft 513, the connection between the nuts 522 and the connecting shaft 513 is restored, and the handrail 52 is fixed to one end of the storage box 51, and the controller 2 is used to start the crystallization. The device body 1 and the conveyor belt 3 are used to heat and crystallize the polylactic acid straws. The polylactic acid after heating and crystallization is transported from the inside of the crystallization device to the end close to the second supporting leg 32 via the conveyor belt 3 and falls into the lower hopper 41. The controller 2 is used to control the first telescopic rod 45 to contract and the baffle 44 is pulled out from the connecting hole 43, so that the polylactic acid straws are discharged from the lower hopper 41 through the lower hole and the lower hopper 41 and then fall into the storage drawer 53. After the storage drawer 53 is full, the controller 2 is used to control the first telescopic rod 45 to extend and push the baffle 44 back into the connecting hole 43. At this time, the controller 2 is used to control the second telescopic rod 57 to contract until the second storage drawer 53 is located directly below the lower feeding pipe 42, and then the second telescopic rod 57 is closed. The time interval from the opening to the closing of the second telescopic rod 57 is recorded as interval A, and the time from the start of material discharge to the time when the baffle 44 is fully pushed into the connecting hole 43 is recorded as interval B. The interval A and the interval B are compiled into a group in the controller 2, so that after the second telescopic rod 57 has completed operation according to the interval A, the second telescopic rod 57 immediately operates according to the interval B. After the operation of the interval B is completed, the interval A is immediately started. According to the above-mentioned cycle, the automatic collection operation of the polylactic acid straws can be realized until the storage drawer 53 near one end of the handrail 52 is full of polylactic acid straws. At this time, the second telescopic rod 57 is extended to push the storage box 51 containing the polylactic acid straws out from under the unloading mechanism 4, disconnecting the connecting seat 56 and the second telescopic rod 57. , connect the connecting seat 56 of another empty storage box 51 to the second connecting seat 56, repeat the cycle of the above-mentioned A and B intervals, continue the collection operation of the giant breast segment straws, immediately loosen the nut 522, reset the handrail 52, and after the storage box 51 is connected to the polylactic acid straws and transferred to a suitable position, the pressure rod 55 is removed from one side of the storage box 51, so that the block 552 and the mixing slot 541 are separated, the limit block 551 and the second through hole 531 are separated, and then the storage drawer 53 is pulled out of the storage box 51 through the second through hole 531 in turn, and after the polylactic acid straws in the storage drawer 53 are taken out, the storage drawer 53 and the pressure rod 55 are reset, and the empty storage box 51 can be pushed back to one side of the crystallization device body 1 for standby use.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating crystallization device for the production of polylactic acid straws, comprising a crystallization device body and a controller, wherein the controller is arranged on one side of the crystallization device body, and a conveyor belt is arranged inside the crystallization device body, characterized in that: A material unloading mechanism is arranged below one end of the conveyor belt, a material storage mechanism is arranged below the material unloading mechanism, the material unloading mechanism comprises a material unloading hopper, a material unloading pipe, a baffle and a first telescopic rod, and the material storage mechanism comprises a material storage box, a material storage drawer, a pressure rod and a second telescopic rod.

2. A heating crystallization device for the production of polylactic acid straws according to claim 1, characterized in that: Two first supporting legs and a second supporting leg are respectively arranged at both ends of the conveyor belt, and one side of the second supporting leg is connected to a limiting plate.

3. A heating crystallization device for the production of polylactic acid straws according to claim 1, characterized in that: Both sides of the lower hopper are connected with a first bracket, the first bracket is detachably connected to the second supporting leg, a lower port is provided at the bottom of the lower hopper, a lower pipe is provided below the lower port, a connecting hole is provided on one side of the lower pipe, a baffle is provided through the inside of the connecting hole, a first telescopic rod is connected to one side of the baffle, a second bracket is connected to the outer side of the first telescopic rod, and the second bracket is connected to the second supporting leg.

4. A heating crystallization device for the production of polylactic acid straws according to claim 1, characterized in that: A plurality of partitions are equidistantly arranged inside the storage box, a plurality of rollers are connected to the bottom of the storage box, a handrail is arranged at one end of the storage box, a plurality of first through holes are arranged at both ends of the handrail, a connecting shaft is arranged passing through the inside of the first through hole, a nut is threadedly connected to the outer side of the connecting shaft, and a plurality of placement holes are arranged on one side of the storage box.

5. A heating crystallization device for the production of polylactic acid straws according to claim 4, characterized in that: A material storage drawer is arranged inside the placement hole, a second through hole is arranged above the side of the material storage drawer close to the placement hole, protrusions are arranged at both ends of the material storage box, a card slot is arranged inside the protrusion, a pressure rod is arranged on the side of the material storage box close to the placement hole, a plurality of limit blocks are arranged on one side of the pressure rod, card blocks are arranged at both ends of the pressure rod, the limit blocks and the card blocks are respectively engaged with the second through hole and the card slot, and a connecting seat is connected to the end of the material storage box away from the connecting shaft.

6. A heating crystallization device for the production of polylactic acid straws according to claim 5, characterized in that: A second telescopic rod is arranged on one side of the connecting seat, a telescopic end of the second telescopic rod is detachably connected to the connecting seat, and a third bracket is connected to the outer side of the second telescopic rod.

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