Rapid blow molding device for plastic processing

Abstract

The utility model provides a quick blow molding device for plastic processing, which relates to the technical field of plastic processing and comprises a blow molding device body, the blow molding device body comprises a bottom plate, mounting racks are arranged on both sides of the bottom plate, and electric push rods are arranged on the tops of the two mounting racks. Driving assemblies are arranged on the sides, close to each other, of the two electric push rods correspondingly, blow molding molds are arranged on the sides, close to each other, of the two driving assemblies correspondingly, heat in the blow molding molds can be transferred to the outside through heat dissipation fins, and furthermore, a hydraulic push rod is controlled to drive a lifting plate to be lifted upwards; and at the moment, the heat dissipation sleeve is arranged on the outer side of the blow molding mold in a sleeving mode through the lifting plate, and when the blow molding mold is located in the heat dissipation sleeve, the auxiliary supporting rods are extruded, the springs deform and stretch, the first sliding blocks slide towards one side of the blow molding mold, so that the auxiliary supporting rods are attached to the sliding grooves, and the blow molding mold enters the heat dissipation sleeve to be cooled conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to a rapid blow molding device for plastic processing. Background Technique

[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The blow molding process began to be used to produce small bottles of low-density polyethylene during World War II. In the late 1950s, with the birth of high-density polyethylene and the development of blow molding machines, blow molding technology has been widely used. The volume of hollow containers can reach thousands of liters, and some production has adopted computer control. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc. The obtained hollow containers are widely used as industrial packaging containers. According to the method of making the parison, blow molding can be divided into extrusion blow molding and injection blow molding. Newly developed are multi-layer blow molding and stretch blow molding. The thermoplastic resin is extruded or injection molded to obtain a tubular plastic parison, which is placed in a split mold while it is hot (or heated to a softened state). After closing the mold, compressed air is immediately introduced into the parison to blow up the plastic parison and make it adhere tightly to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] In the existing patent CN214056396U blow molding device, heat dissipation holes are opened on the surface of the blow molding mold to quickly cool the blank after it is formed, so as to quickly demold between the blank and the mold. At the same time, the power motor of the grinding device drives the grinding wheel strip with the same contour as the formed blank to perform surface fitting grinding on the formed blank, so that all parts of the blank surface are smoothly ground, which is convenient for the surface decoration process.

[0004] In the above-mentioned comparative document, although cooling the blank through the heat dissipation holes has a certain effect, the waiting time for natural cooling is relatively long, resulting in a reduction in work efficiency and low practicability of the device. Therefore, the utility model proposes a rapid blow molding device for plastic processing. Content of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art and propose a rapid blow molding device for plastic processing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a rapid blow molding device for plastic processing, including a blow molding device body, the blow molding device body includes a bottom plate, both sides of the bottom plate are provided with mounting frames, electric push rods are arranged on the tops of the two mounting frames, driving components are arranged on the sides of the two electric push rods close to each other, blow molding molds are arranged on the sides of the two driving components close to each other, a hydraulic push rod is arranged on the bottom plate, a lifting plate is arranged on the top of the hydraulic push rod, and a heat exchange component and a heat dissipation sleeve are arranged on the lifting plate;

[0007] The heat exchange component includes a heat exchange box which is arranged on the lifting plate. A heat exchange tube is embedded in the heat exchange box. A refrigerator is arranged on one side of the heat exchange box. The output end of the refrigerator is communicated with the input end of the heat exchange tube, and the input and output ends of the refrigerator are communicated with the output end of the heat exchange tube.

[0008] As a preferred embodiment, a threaded diversion groove is formed in the heat dissipation sleeve. An air pump is arranged between the lifting plate and the heat exchange box. The output end of the air pump is communicated with the bottom of the heat dissipation sleeve, and the input end of the air pump is fixedly communicated with the heat exchange tube.

[0009] The beneficial effect of adopting the above further scheme is that under the action of the threaded diversion groove, the air flow entering the heat dissipation sleeve is in a spiral upward state under the action of the threaded diversion groove. This state can accelerate the upward diversion of the air flow, accelerate the flow of the air flow, and improve the heat exchange effect of the air flow on the heat dissipation fins. Under the action of the air pump, the air flow in the heat exchange box is introduced into the heat dissipation sleeve.

[0010] As a preferred embodiment, a diversion tube is fixedly communicated with the top of the heat dissipation sleeve, and the other end of the diversion tube is fixedly communicated with the heat exchange box.

[0011] The beneficial effect of adopting the above further scheme is that under the action of the diversion tube, part of the air flow at the top end of the heat dissipation sleeve is re-introduced into the heat exchange box through the diversion tube for recycling.

[0012] As a preferred embodiment, a blow molding groove is formed on one side where the blow molding molds are close to each other. A sliding groove is arranged at one end where the blow molding molds are far from each other. Heat dissipation fins are arranged on both sides of the sliding groove on the blow molding molds, and the heat dissipation fins are of an inclined structure.

[0013] The beneficial effect of adopting the above further scheme is that the blank is blow molded into a specified shape through the blow molding groove. Further, the blow molding molds are cooled by the heat dissipation fins. Under the action of the blow molding groove, the heat in the blow molding molds is transferred to the outside and heat exchange cooling is carried out when the air flow circulates.

[0014] As a preferred embodiment, the driving component includes a sliding frame which is slidably connected to the sliding groove. An auxiliary support rod is arranged at the bottom of the sliding frame. A second slider is rotatably connected to the bottom of the auxiliary support rod, and the second slider is slidably connected to the sliding groove. A first slider is rotatably connected to the top of the auxiliary support rod, and the first slider is slidably connected to the sliding frame. A spring is arranged between the first slider and the sliding frame.

[0015] The beneficial effects of adopting the above further scheme are as follows: Under the action of the driving component, the blow molding die is erected and installed. When the blow molding die is inside the heat dissipation sleeve, the auxiliary support rod is squeezed. At this time, the spring deforms and stretches, and the first slider slides towards one side of the blow molding die, making the auxiliary support rod fit with the chute, so as to facilitate the blow molding die to enter the inside of the heat dissipation sleeve for temperature reduction treatment. When the blow molding die is above the heat dissipation sleeve, under the action of the spring, the auxiliary support rod is pulled back to the inclined state to assist in supporting the lower half of the blow molding die, preventing the blow molding die from tilting during the blow molding process.

[0016] As a preferred implementation manner, a support frame is arranged on one side of the mounting frame close to the hydraulic push rod. The support frame is of an inclined structure, and the bottom of the support frame is connected to the bottom plate.

[0017] The beneficial effects of adopting the above further scheme are as follows: The support frame assists in supporting the mounting frame, preventing the mounting frame from tilting due to its relatively high center of gravity during use, and increasing the stability of the mounting frame during use under the action of the support frame.

[0018] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0019] 1. In the present utility model, through the arrangement of the heat dissipation fins, the heat dissipation fins can transfer the heat inside the blow molding die to the outside. Further, by controlling the hydraulic push rod to drive the lifting plate to lift upward, at this time, the lifting plate sleevs the heat dissipation sleeve outside the blow molding die. When the blow molding die is inside the heat dissipation sleeve, the auxiliary support rod is squeezed, the spring deforms and stretches, and the first slider slides towards one side of the blow molding die, making the auxiliary support rod fit with the chute, so as to facilitate the blow molding die to enter the inside of the heat dissipation sleeve for temperature reduction treatment. At this time, the air pump can be turned on to pump the gas inside the heat exchange tube into the inside of the heat dissipation sleeve. Under the action of the threaded diversion groove, the air flow rotates upward, accelerating the heat dissipation effect of the heat dissipation fins, enabling the blow molding die to be quickly cooled and formed, thereby improving the working efficiency.

[0020] 2. In the present utility model, further under the action of the refrigerator, the external air is compressed and refrigerated and then introduced into the heat exchange tube. At this time, the cold air flow inside the heat exchange tube cools the air inside the heat exchange box, reducing the air flow temperature and the temperature of the air about to enter the inside of the heat dissipation sleeve, accelerating the cooling of the heat dissipation fins, and further improving the cooling and forming of the forming die. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the rapid blow molding device for plastic processing of the present utility model;

[0022] Figure 2This is the exploded view of the rapid blow molding device for plastic processing of the present utility model;

[0023] Figure 3 This is the structural diagram of the bottom plate in the rapid blow molding device for plastic processing of the present utility model;

[0024] Figure 4 This is the structural diagram of the driving component and the blow molding die in the rapid blow molding device for plastic processing of the present utility model;

[0025] Figure 5 This is the structural diagram of the heat exchange component and the heat dissipation sleeve in the rapid blow molding device for plastic processing of the present utility model.

[0026] Reference numerals

[0027] 1. Blow molding device body;

[0028] 2. Bottom plate; 21. Mounting frame; 22. Support frame; 23. Electric push rod; 24. Hydraulic push rod; 25. Lifting plate;

[0029] 3. Driving component; 31. Sliding frame; 32. Auxiliary support rod; 321. First slider; 322. Second slider; 33. Spring;

[0030] 4. Blow molding die; 41. Chute; 42. Heat dissipation fins; 43. Blow molding groove;

[0031] 5. Heat exchange component; 51. Heat exchange box; 52. Refrigerator; 53. Heat exchange tube; 54. Air pump;

[0032] 6. Heat dissipation sleeve; 61. Threaded diversion groove;

[0033] 7. Drainage tube. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] As Figures 1-5As shown in the figure, the present utility model provides a technical solution: a rapid blow molding device for plastic processing, including a blow molding device body 1. The blow molding device body 1 includes a bottom plate 2. Installation frames 21 are provided on both sides of the bottom plate 2. Electric push rods 23 are provided at the tops of the two installation frames 21. Drive assemblies 3 are provided on the sides of the two electric push rods 23 close to each other. Blow molding molds 4 are provided on the sides of the two drive assemblies 3 close to each other. A hydraulic push rod 24 is provided on the bottom plate 2. A lifting plate 25 is provided at the top of the hydraulic push rod 24. A heat exchange assembly 5 and a heat dissipation sleeve 6 are provided on the lifting plate 25. The heat exchange assembly 5 includes a heat exchange box 51. The heat exchange box 51 is arranged on the lifting plate 25. A heat exchange tube 53 is embedded in the heat exchange box 51. A refrigerator 52 is provided on one side of the heat exchange box 51. The output end of the refrigerator 52 is communicated with the input end of the heat exchange tube 53. The input and output ends of the refrigerator 52 are communicated with the output end of the heat exchange tube 53. A support frame 22 is provided on the side of the installation frame 21 close to the hydraulic push rod 24. The support frame 22 is of an inclined structure. The bottom of the support frame 22 is connected to the bottom plate 2. Through the arrangement of the heat dissipation fins 42, the heat dissipation fins 42 can transfer the heat inside the blow molding mold 4 to the outside. Further, by controlling the hydraulic push rod 24 to drive the lifting plate 25 to lift upward, at this time, the lifting plate 25 sleevs the heat dissipation sleeve 6 outside the blow molding mold 4. When the blow molding mold 4 is inside the heat dissipation sleeve 6, the auxiliary support rod 32 is squeezed, the spring 33 deforms and stretches, and the first slider 321 slides toward one side of the blow molding mold 4, so that the auxiliary support rod 32 fits with the chute 41, facilitating the blow molding mold 4 to enter the inside of the heat dissipation sleeve 6 for cooling treatment. At this time, the air pump 54 can be turned on to pump the gas in the heat exchange tube 53 into the inside of the heat dissipation sleeve 6. Under the action of the threaded diversion groove 61, the air flow rotates upward, accelerating the heat dissipation effect of the heat dissipation fins 42, enabling the blow molding mold to be quickly cooled and formed, and solving the technical problem of accelerating the cooling of the heat dissipation fins 42.

[0036] Furthermore, as Figures 2-4As shown in the figure: The driving component 3 includes a sliding frame 31, the sliding frame 31 is slidably connected to the chute 41, an auxiliary support rod 32 is arranged at the bottom of the sliding frame 31, a second slider 322 is rotatably connected to the bottom of the auxiliary support rod 32, the second slider 322 is slidably connected to the chute 41, a first slider 321 is rotatably connected to the top of the auxiliary support rod 32, the first slider 321 is slidably connected to the sliding frame 31, a spring 33 is arranged between the first slider 321 and the sliding frame 31, a blow molding groove 43 is formed on one side of the blow molding mold 4 close to each other, a chute 41 is arranged at one end of the blow molding mold 4 away from each other, heat dissipation fins 42 are arranged on both sides of the blow molding mold 4 where the chute 41 is located, the heat dissipation fins 42 are of an inclined structure, under the action of the driving component 3, the blow molding mold 4 is erected and installed. When the blow molding mold 4 is inside the heat dissipation sleeve 6, the auxiliary support rod 32 is squeezed, at this time the spring 33 deforms and stretches, the first slider 321 slides towards one side of the blow molding mold 4, so that the auxiliary support rod 32 fits with the chute 41, so as to facilitate the blow molding mold 4 to enter the inside of the heat dissipation sleeve 6 for cooling treatment. When the blow molding mold 4 is above the heat dissipation sleeve 6, under the action of the spring 33, the auxiliary support rod 32 is pulled back to the inclined state to assist in supporting the lower half of the blow molding mold 4, preventing the blow molding mold 4 from tilting during the blow molding process, and solving the technical problem of the blow molding mold 4 entering the heat dissipation sleeve 6.

[0037] In the above solution, there is also a problem of turbulent flow when air enters the heat dissipation sleeve 6, such as Figure 5 As shown in the figure: In this solution, a threaded diversion groove 61 is provided inside the heat dissipation sleeve 6. A lifting plate 25 is arranged between the heat exchange box 51 and the heat dissipation sleeve 6, and an air pump 54 is provided. The output end of the air pump 54 is communicated with the bottom of the heat dissipation sleeve 6, and the input end of the air pump 54 is fixedly communicated with the heat exchange tube 53. Under the action of the threaded diversion groove 61, the air flow entering the heat dissipation sleeve 6 is in a spiral upward state under the action of the threaded diversion groove 61. This state can accelerate the upward diversion of the air flow, accelerate the flow of the air flow, and improve the heat exchange effect of the air flow on the heat dissipation fins 42. Under the action of the air pump 54, the air flow in the heat exchange box 51 is introduced into the heat dissipation sleeve 6.

[0038] In the above solution, there is also a problem that some of the cooled air flow cannot be recycled, such as Figure 2 As shown in the figure: In this solution, a diversion tube 7 is fixedly communicated with the top of the heat dissipation sleeve 6, and the other end of the diversion tube 7 is fixedly communicated with the heat exchange box 51. Under the action of the diversion tube 7, part of the air flow at the top of the heat dissipation sleeve 6 is re-introduced into the heat exchange box 51 through the diversion tube 7 for recycling.

[0039] Working principle:

[0040] Such as Figures 1-5As shown in the figure, first, place the blow molding device body 1 at the designated position, and place the blank between the two blow molding dies 4. After the placement is completed, control the electric push rod 23 to make the two blow molding dies 4 approach and close to each other. At this time, connect the blow molding pipe of the blow molding machine to the top of the blow molding die 4, turn on the blow molding machine, and perform blow molding on the blank. After the blank is formed, control the hydraulic push rod 24 to drive the lifting plate 25 to lift upward. At this time, the lifting plate 25 sleeved the heat dissipation sleeve 6 outside the blow molding die 4. When the blow molding die 4 is inside the heat dissipation sleeve 6, the auxiliary support rod 32 is squeezed, the spring 33 deforms and stretches, and the first slider 321 slides to one side of the blow molding die 4, so that the auxiliary support rod 32 fits with the chute 41, so as to facilitate the blow molding die 4 to enter the inside of the heat dissipation sleeve 6 for cooling treatment. At this time, the air in the heat exchange pipe 53 can be pumped into the inside of the heat dissipation sleeve 6 by turning on the air pump 54. Under the action of the threaded diversion groove 61, the air flow rotates upward, accelerating the heat dissipation effect of the heat dissipation fins 42, so that the blow molded die is quickly cooled and formed. Further, under the action of the refrigerator 52, the external air is compressed and refrigerated and then introduced into the heat exchange pipe 53. At this time, the cold air flow in the heat exchange pipe 53 cools the air in the heat exchange box 51, reducing the air flow temperature, reducing the temperature of the air about to enter the inside of the heat dissipation sleeve 6, and accelerating the cooling of the heat dissipation fins 42. After the cooling is completed, control the hydraulic push rod 24 to drive the lifting plate 25 to move downward. At this time, under the action of the spring 33, the auxiliary support rod 32 is pulled back to the inclined state to assist in supporting the lower half of the blow molding die 4. After the cooling is completed, control the electric push rod 23 to drive the two blow molding dies 4 to move to both sides to complete the demolding work.

[0041] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A rapid blow molding device for plastic processing, characterized in that: The blow molding device comprises a blow molding device body (1), wherein the blow molding device body (1) comprises a bottom plate (2), mounting frames (21) are arranged on both sides of the bottom plate (2), electric push rods (23) are arranged on the tops of the two mounting frames (21), driving components (3) are arranged on the sides of the two electric push rods (23) close to each other, blow molding molds (4) are arranged on the sides of the two driving components (3) close to each other, a hydraulic push rod (24) is arranged on the bottom plate (2), a lifting plate (25) is arranged on the top of the hydraulic push rod (24), and a heat exchange component (5) and a heat dissipation sleeve (6) are arranged on the lifting plate (25); The heat exchange assembly (5) comprises a heat exchange box (51), which is arranged on a lifting plate (25), and a heat exchange tube (53) is embedded and installed in the heat exchange box (51). A refrigerator (52) is arranged on one side of the heat exchange box (51), and the output end of the refrigerator (52) is connected to the input end of the heat exchange tube (53), and the inlet and outlet ends of the refrigerator (52) are connected to the output end of the heat exchange tube (53).

2. The rapid blow molding device for plastic processing according to claim 1, characterized in that: A threaded guide groove (61) is provided in the heat dissipation sleeve (6); an air pump (54) is provided on the lifting plate (25) between the heat exchange box (51) and the heat dissipation sleeve (6); an output end of the air pump (54) is connected to the bottom of the heat dissipation sleeve (6); and an input end of the air pump (54) is fixedly connected to the heat exchange tube (53).

3. The rapid blow molding device for plastic processing according to claim 1, characterized in that: The top of the heat dissipation sleeve (6) is fixedly connected to a drainage pipe (7), and the other end of the drainage pipe (7) is fixedly connected to a heat exchange box (51).

4. The rapid blow molding device for plastic processing according to claim 1, characterized in that: A blow moulding groove (43) is provided on one side of the blow moulding moulds (4) which are close to each other, a slide groove (41) is provided on one end of the blow moulding moulds (4) which are far away from each other, and heat dissipation fins (42) are provided on both sides of the slide groove (41) on the blow moulding mould (4), and the heat dissipation fins (42) are of an inclined structure.

5. The rapid blow molding device for plastic processing according to claim 4, characterized in that: The driving assembly (3) comprises a sliding frame (31), the sliding frame (31) is slidably connected to a sliding groove (41), an auxiliary support rod (32) is arranged at the bottom of the sliding frame (31), a second sliding block (322) is rotatably connected to the bottom of the auxiliary support rod (32), the second sliding block (322) is slidably connected to the sliding groove (41), the top of the auxiliary support rod (32) is rotatably connected to a first sliding block (321), the first sliding block (321) is slidably connected to the sliding frame (31), and a spring (33) is arranged between the first sliding block (321) and the sliding frame (31).

6. The rapid blow molding device for plastic processing according to claim 1, characterized in that: A support frame (22) is provided on one side of the mounting frame (21) close to the hydraulic push rod (24); the support frame (22) is an inclined structure, and the bottom of the support frame (22) is connected to the base plate (2).

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