Cooling device for plastic production

Abstract

The utility model discloses a cooling device for plastic production, belongs to the technical field of plastic production, and aims to enable cold air at a refrigeration sheet to blow to a plastic strip, so that the plastic strip is subjected to primary cooling treatment, liquid can be sprayed to the whole plastic strip, and the plastic strip is subjected to secondary cooling treatment. The plastic production cooling device comprises a bearing table, a cooling box is installed at the middle section of the top of the bearing table, and the two ends of the cooling box are communicated; the cooling box is formed by hinging two fixing boxes through a hinge, the cooling box is divided into a first cooling cavity and a second cooling cavity through a barrier plate, refrigeration pieces are embedded and installed at the top, corresponding to the first cooling cavity, of the cooling box at equal intervals, an air guide barrel is fixed to the refrigeration pieces, a fixing frame is fixed to the air guide barrel, and an air guide wheel is rotationally arranged on the fixing frame; and air guide grooves are formed in the bottom, corresponding to the first cooling cavity, of the cooling box at equal intervals, bearing frames with nozzles are fixed to the top, corresponding to the second cooling cavity, of the cooling box at equal intervals, and a drainage pipe is arranged at the bottom of the cooling box.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic production, and in particular relates to a plastic production cooling device. Background Art

[0002] Cooling is a very important step in the processing of polymer plastics. The cooling process mainly occurs in the molding stage of plastics, such as injection molding, extrusion or blow molding. The purpose of cooling is to quickly solidify the molten plastic, maintain its shape in the mold, and improve production efficiency. The cooling process has a significant impact on the performance and appearance of polymer plastics.

[0003] Publication number "CN107471600A" discloses a cooling device for plastic strips, characterized in that it comprises a twin-screw extruder (1) and a water trough (2), wherein the strips (6) extruded from the discharge port of the twin-screw extruder (1) enter the water trough (2), and a plurality of guide wheels (5) are fixed on the inner wall of the water trough (2), wherein the guide wheels (5) are arranged in an up-down staggered manner from front to back, and the strips (6) are wound around the guide wheels (5), so that the strips (6) bend and move forward in the water trough (2). In this cooling device for plastic strips, when the length of the water trough remains unchanged, the strips are guided by the guide wheels and bend and move forward in the cooling water trough, thereby extending the heat dissipation time of the strips; at the same time, a cooler is connected to the outside of the water trough, which can effectively cool the water and improve the cooling effect, thereby ensuring that the strips are fully cooled and the water content meets the requirements, effectively preventing the strips from being stuck in the pelletizer due to excessive temperature, and preventing too much screened material, thereby improving product quality.

[0004] Most existing plastic production cooling devices directly place the plastic strips into a water tank for cooling when cooling the plastic strips, which may cause large changes in the stability of the plastic strips, resulting in the plastic strips being cooled too quickly, causing cracks on the surface of the plastic strips or poor glossiness, etc. Therefore, a plastic production cooling device is needed to assist in solving this problem. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a plastic production cooling device, which can blow the cold air at the refrigeration plate to the plastic strip, thereby performing a preliminary cooling treatment on the plastic strip. After the preliminary cooling, the plastic strip enters the second cooling chamber, the conduit is connected to the water pipe, and the nozzle is made to spray water as a whole, so that the liquid is sprayed toward the plastic strip as a whole, thereby performing a secondary cooling treatment on the plastic strip. By cooling down in stages in different ways, it can be ensured that the overall cooling amplitude of the plastic strip will not be too large, and it is possible to avoid the situation where the plastic strip is cooled too quickly, cracks on the surface of the plastic strip product or poor glossiness, etc.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides such a plastic production cooling device, which includes a receiving platform, and material guide components for assisting the plastic strip to guide movement are installed at both ends of the top of the receiving platform, and a cooling box is installed at the middle section of the top of the receiving platform, and the two ends of the cooling box are connected;

[0009] The cooling box is formed by two fixed boxes hinged by hinges, a blocking plate is fixed at the middle section of the cooling box, the cooling box is divided into a first cooling chamber and a second cooling chamber by the blocking plate, refrigeration fins are equidistantly embedded and installed at the top of the cooling box corresponding to the first cooling chamber, a filter screen cylinder is fixed at the bottom of the refrigeration fins, an air guide cylinder is fixed on the filter screen cylinder, a fixing frame is fixed on the air guide cylinder, an air guide wheel is rotatably arranged on the fixing frame, air guide grooves are equidistantly opened at the bottom of the cooling box corresponding to the first cooling chamber, exhaust holes are opened in the air guide grooves, and a conducting pipe connected with the exhaust hole is installed at the bottom of the cooling box;

[0010] A receiving frame with a nozzle is fixed equidistantly at the top of the cooling box corresponding to the second cooling cavity, and a drainage pipe is provided at the bottom of the cooling box.

[0011] Furthermore, conduits are installed at the top and bottom of the cooling box, the conduit on the top cooling box is connected to the nozzle, and the conduit on the bottom cooling box is connected to the drain pipe.

[0012] Furthermore, a plurality of the nozzles and the drain pipes are provided, and the plurality of nozzles and the plurality of drain pipes are arranged in a rectangular array.

[0013] Furthermore, a fixing component for auxiliary positioning is installed at one end of the cooling box away from the hinge, and the fixing component is fixed to a fixing plate and a hinge seat on the cooling box. A pressing block is hingedly installed on the hinge seat, and a hook is hingedly installed on the pressing block. The fixing plate and the hook are engaged and snap-fitted.

[0014] Furthermore, material guiding components for assisting the plastic strip guidance are installed at both ends of the top of the receiving platform, and a base frame is installed at the bottom of the receiving platform.

[0015] Furthermore, the material guide assembly includes a mounting frame fixed at the top of the receiving platform, a material guide roller is rotatably provided on the mounting frame near the top, a slide is provided at the middle section of the mounting frame, a sliding seat is slidably provided in the slide, material guide rollers are rotatably provided on two of the sliding seats, and an adjustment assembly for assisting the sliding seat position adjustment is installed at the bottom of the mounting frame corresponding to the slide.

[0016] Furthermore, the adjustment component includes a screw rod fixed at the bottom of the sliding seat, a sleeve is rotatably embedded and installed at the bottom of the mounting frame corresponding to the slideway, the screw rod is installed on the sleeve, a groove wheel is fixed at the bottom of the sleeve, the two groove wheels are connected by a transmission belt, and a bevel gear is rotatably embedded and installed on one side of the mounting frame, and the bevel gear is meshed with the bottom of the groove wheel for transmission.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model provides a cooling box, divides the interior of the cooling box into a first cooling chamber and a second cooling chamber, and cooperates with the refrigeration fins, air guide wheels and nozzles provided therein, starts the refrigeration fins and a rotating motor that drives the air guide wheels to rotate, cools one side of the refrigeration fins, starts the rotating motor, and drives the air guide wheels to rotate as a whole, so that the cold air at the refrigeration fins is blown toward the plastic strips, thereby performing a preliminary cooling treatment on the plastic strips. After the preliminary cooling, the plastic strips enter the second cooling chamber, the conduit is connected to the water guide pipe, and the nozzle is made to spray water as a whole, so that the liquid is sprayed toward the plastic strips as a whole, thereby performing a secondary cooling treatment on the plastic strips. By cooling in stages in different ways, it can be ensured that the overall cooling amplitude of the plastic strips will not be too large, and it is avoided as much as possible that the plastic strips are cooled too quickly, and cracks or poor glossiness on the surface of the plastic strips are generated.

[0020] The utility model uses an adjusting component arranged on the mounting frame to rotate the bevel gear, and the bevel gear is meshed with the bottom of the groove wheel for transmission, so that the groove wheel rotates as a whole, and the transmission belt is driven to rotate during the rotation of the groove wheel, thereby causing the two groove wheels to rotate synchronously, and the sleeve thereon is driven to rotate during the rotation of the groove wheel, and the sleeve and the lead screw are threadedly matched, so that the lead screw is extended from the sleeve, thereby adjusting the overall height of the sliding seat, and in the subsequent production process, the distance between the two guide rollers can be effectively determined and adjusted according to the different overall sizes of the plastic strips, thereby ensuring the smooth progress of subsequent work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a longitudinal cross-sectional view of the mounting frame of the utility model;

[0024] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of the cooling box of the utility model when it is opened;

[0026] Figure 5 For this utility model Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0027] The marks in the accompanying drawings are: 1. receiving platform; 2. base frame; 3. material guide assembly; 4. mounting frame; 5. material guide roller; 6. sliding seat; 7. adjustment assembly; 8. screw rod; 81. sleeve; 9. groove wheel; 10. bevel gear; 11. cooling box; 111. blocking plate; 12. exhaust hole; 13. guide pipe; 14. refrigeration plate; 15. air guide wheel; 16. air guide tube; 161. filter screen cylinder; 17. nozzle; 18. drain pipe; 19. conduit; 20. fixing assembly; 201. fixing plate; 202. hinge seat; 203. pressing block; 204. hook. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] This specific embodiment is a plastic production cooling device, such as Figure 1 , Figure 2 and Figure 3 As shown, the plastic production cooling device includes a receiving platform 1, a base frame 2 is installed at the bottom of the receiving platform 1, and material guide components 3 for assisting the guidance of plastic strips are installed at both ends of the top of the receiving platform 1. The material guide component 3 includes a mounting frame 4 fixed at the top of the receiving platform 1, and a material guide roller 5 is rotatably arranged near the top of the mounting frame 4. A slideway is provided at the middle section of the mounting frame 4, and a sliding seat 6 is slidably arranged in the slideway. The receiving platform 1 and the sliding seat 6 are both provided with a servo motor for assisting the rotation of the material guide roller 5. Through the material guide component 3, the material guide roller 5 can be driven to rotate by the servo motor during the working process, thereby realizing the overall stable transportation of the plastic strips.

[0030] The two sliding seats 6 are rotatably provided with guide rollers 5, and an adjustment assembly 7 for assisting the position adjustment of the sliding seat 6 is installed at the bottom of the mounting frame 4 corresponding to the slideway. The adjustment assembly 7 includes a screw rod 8 fixed at the bottom of the sliding seat 6, a sleeve 81 is rotatably embedded and installed at the bottom of the mounting frame 4 corresponding to the slideway, the screw rod 8 is penetrated and installed on the sleeve 81, a groove wheel 9 is fixed at the bottom of the sleeve 81, and the two groove wheels 9 are connected by a transmission belt, and a bevel gear 10 is rotatably embedded and installed on one side of the mounting frame 4, and the bevel gear 10 is meshed with the bottom of the groove wheel 9 for transmission.

[0031] By means of the adjustment component 7 arranged on the mounting frame 4, the bevel gear 10 is rotated, and the bevel gear 10 is meshed with the bottom of the groove wheel 9 for transmission, so that the groove wheel 9 rotates as a whole, and the transmission belt is driven to rotate during the rotation of the groove wheel 9, thereby making the two groove wheels 9 rotate synchronously, and the sleeve 81 thereon is driven to rotate during the rotation of the groove wheel 9, and the sleeve 81 is threadedly matched with the screw rod 8, so that the screw rod 8 extends from the sleeve 81, thereby adjusting the overall height of the sliding seat 6, and in the subsequent production process, the distance between the two guide rollers 5 can be effectively determined and adjusted according to the overall size of the plastic strip, thereby ensuring the smooth progress of subsequent work.

[0032] Reference Figure 1 , Figure 4 and Figure 5 As shown, a cooling box 11 is installed at the middle section of the top of the receiving platform 1, and the two ends of the cooling box 11 are connected. The cooling box 11 is formed by two fixed boxes hinged by hinges. A blocking plate 111 is fixed at the middle section of the inside of the cooling box 11. The cooling box 11 is divided into a first cooling chamber and a second cooling chamber by the blocking plate 111. The cooling box 11 is equidistantly embedded with refrigeration fins 14 at the top of the first cooling chamber corresponding to the cooling box 11, and a filter screen cylinder 161 is fixed at the bottom of the refrigeration fin 14. An air guide cylinder 16 is fixed on the filter screen cylinder 161, and a fixed frame is fixed on the air guide cylinder 16. An air guide wheel 15 is rotatably arranged on the fixed frame, and a rotating motor that drives the air guide wheel 15 to rotate is installed on the fixed frame. The cooling An air guide groove is equidistantly provided at the bottom of the box 11 corresponding to the first cooling cavity, and an exhaust hole 12 is provided in the air guide groove. A conducting pipe 13 connected to the exhaust hole 12 is installed at the bottom of the cooling box 11. A receiving frame with a nozzle 17 is equidistantly fixed at the top of the cooling box 11 corresponding to the second cooling cavity. A drain pipe 18 is provided at the bottom of the cooling box 11. A conduit 19 is installed at the top and bottom of the cooling box 11. The conduit 19 on the top cooling box 11 is connected to the nozzle 17, and the conduit 19 on the bottom cooling box 11 is connected to the drain pipe 18. A plurality of nozzles 17 and a plurality of drain pipes 18 are provided, and the plurality of nozzles 17 and the plurality of drain pipes 18 are arranged in a rectangular array.

[0033] By setting up a cooling box 11, by dividing the interior of the cooling box 11 into a first cooling chamber and a second cooling chamber, and cooperating between the refrigeration plate 14, the air guide wheel 15 and the nozzle 17 set therein, the refrigeration plate 14 and the rotating motor that drives the air guide wheel 15 to rotate are started, and one side of the refrigeration plate 14 is cooled, and the rotating motor is started. The rotating motor drives the air guide wheel 15 to rotate as a whole, so that the cold air at the refrigeration plate 14 is blown toward the plastic strip, thereby performing a preliminary cooling treatment on the plastic strip. After the preliminary cooling, the plastic strip enters the second cooling chamber, the conduit 19 is connected to the water pipe, and the nozzle 17 is sprayed with water as a whole, so that the liquid is sprayed toward the plastic strip as a whole, thereby performing a secondary cooling treatment on the plastic strip. By cooling down in stages in different ways, it can be ensured that the overall cooling amplitude of the plastic strip will not be too large, and it is possible to avoid the plastic strip from cooling too fast, cracks on the surface of the plastic strip product or poor glossiness, etc.

[0034] A fixing assembly 20 for auxiliary positioning is installed at one end of the cooling box 11 away from the hinge. The fixing assembly 20 is fixed to a fixing plate 201 and a hinge seat 202 on the cooling box 11. A pressing block 203 is hingedly installed on the hinge seat 202. A hook 204 is hingedly installed on the pressing block 203. The fixing plate 201 and the hook 204 are engaged with each other.

[0035] By providing the fixing assembly 20 , when the cooling box 11 is damaged, the cooling box 11 can be opened as a whole to facilitate auxiliary maintenance of the cooling box 11 .

[0036] Working principle:

[0037] When the plastic strip needs to be cooled, the bevel gear 10 is rotated, and the bevel gear 10 is meshed with the bottom of the groove wheel 9 for transmission, so that the groove wheel 9 rotates as a whole, and the transmission belt is driven to rotate during the rotation of the groove wheel 9, so that the two groove wheels 9 rotate synchronously, and the sleeve 81 thereon is driven to rotate during the rotation of the groove wheel 9, and the sleeve 81 is threadedly matched with the screw rod 8, so that the screw rod 8 extends from the sleeve 81, thereby adjusting the overall height of the sliding seat 6, and then the distance between the two guide rollers 5 is auxiliary adjusted according to the overall size of the plastic strip.

[0038] During cooling, the servo motor is started, and the servo motor drives the guide roller 5 to rotate as a whole. During the rotation of the guide roller 5, the plastic strip is driven to move as a whole. When the plastic strip moves into the cooling box 11 and passes through the first cooling chamber, the refrigeration plate 14 and the rotating motor that drives the air guide wheel 15 to rotate are started. The refrigeration is performed on one side of the refrigeration plate 14, and the rotating motor is started. The rotating motor drives the air guide wheel 15 to rotate as a whole, so that the cold air at the refrigeration plate 14 is blown toward the plastic strip, thereby performing a preliminary cooling treatment on the plastic strip. After the preliminary cooling, the plastic strip enters the second cooling chamber, the conduit 19 is connected to the water pipe, and the nozzle 17 is sprayed with water as a whole, so that the liquid is sprayed toward the plastic strip as a whole, thereby performing a secondary cooling treatment on the plastic strip.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic production cooling device, comprising a receiving platform (1), characterized in that: A cooling box (11) is installed at the middle section of the top of the receiving platform (1), and two ends of the cooling box (11) are connected; The cooling box (11) is formed by two fixed boxes hingedly connected by hinges, a blocking plate (111) is fixed at the middle section of the interior of the cooling box (11), the blocking plate (111) is divided into a first cooling chamber and a second cooling chamber by the blocking plate (111), a refrigeration plate (14) is equidistantly embedded and installed at the top of the cooling box (11) corresponding to the first cooling chamber, a filter screen cylinder (161) is fixed at the bottom of the refrigeration plate (14), an air guide cylinder (16) is fixed on the filter screen cylinder (161), a fixing frame is fixed on the air guide cylinder (16), an air guide wheel (15) is rotatably arranged on the fixing frame, air guide grooves are equidistantly opened at the bottom of the cooling box (11) corresponding to the first cooling chamber, an exhaust hole (12) is opened in the air guide groove, and a conducting pipe (13) connected to the exhaust hole (12) is installed at the bottom of the cooling box (11); A receiving frame with a nozzle (17) is fixed equidistantly at the top of the cooling box (11) corresponding to the second cooling cavity, and a drainage pipe (18) is provided at the bottom of the cooling box (11).

2. A plastic production cooling device according to claim 1, characterized in that: The top and bottom of the cooling box (11) are both provided with conduits (19); the conduit (19) on the top cooling box (11) is connected to the nozzle (17); and the conduit (19) on the bottom cooling box (11) is connected to the drain pipe (18).

3. A plastic production cooling device according to claim 2, characterized in that: A plurality of the nozzles (17) and the drainage pipes (18) are provided, and the plurality of nozzles (17) and the plurality of drainage pipes (18) are arranged in a rectangular array.

4. A plastic production cooling device according to claim 1, characterized in that: A fixing assembly (20) for auxiliary positioning is installed at one end of the cooling box (11) away from the hinge, and the fixing assembly (20) is fixed to a fixing plate (201) and a hinge seat (202) on the cooling box (11); a pressing block (203) is hingedly installed on the hinge seat (202); a hook (204) is hingedly installed on the pressing block (203); and the fixing plate (201) and the hook (204) are engaged and snap-fitted.

5. A plastic production cooling device according to claim 1, characterized in that: Both ends of the top of the receiving platform (1) are equipped with material guide components (3) for assisting the plastic strip guide, and a base frame (2) is installed at the bottom of the receiving platform (1).

6. A plastic production cooling device according to claim 5, characterized in that: The material guide assembly (3) comprises a mounting frame (4) fixed at the top of the receiving platform (1), a material guide roller (5) is rotatably arranged near the top of the mounting frame (4), a slideway is provided at the middle section of the mounting frame (4), a sliding seat (6) is slidably arranged in the slideway, and material guide rollers (5) are rotatably arranged on two of the sliding seats (6), and an adjustment assembly (7) for assisting the sliding seat (6) in position adjustment is installed at the bottom of the mounting frame (4) corresponding to the slideway.

7. A plastic production cooling device according to claim 6, characterized in that: The adjusting assembly (7) comprises a screw rod (8) fixed at the bottom of the sliding seat (6); a sleeve (81) is rotatably embedded and installed at the bottom of the corresponding slideway of the mounting frame (4); the screw rod (8) is installed on the sleeve (81); a groove wheel (9) is fixed at the bottom of the sleeve (81); the two groove wheels (9) are connected by a transmission belt; a bevel gear (10) is rotatably embedded and installed on one side of the mounting frame (4); the bevel gear (10) is meshed with the bottom of the groove wheel (9) for transmission.

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