Double-screw extrusion device for PVC (polyvinyl chloride) plastic template

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) plastic template processing, and discloses a PVC plastic template double-screw extrusion device which comprises a connecting plate and further comprises an extrusion device body arranged on the right side of the top of the connecting plate, a blanking shell is arranged on the top of the extrusion device body, and an extrusion head is arranged on the left side of the extrusion device body; the right side of the rear side of an inner cavity of the cooling shell is fixedly connected with a graduated scale; according to the cooling device, cooling water in the cooling shell can be circularly purified through the water cooling assembly, impurities in the cooling water are prevented from influencing the quality of a PVC plastic template which is just extruded, the PVC plastic template can be conveyed and guided through the first transmission roller, the second transmission roller and the conveying belt, and the PVC plastic template is cooled through the cooling shell. And a PVC plastic template which is just extruded can be cooled in time through cooling water in the cooling device, so that undesirable phenomena such as bubbles caused by high temperature are prevented, and the production quality is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC plastic template processing, in particular to a twin-screw extrusion device for PVC plastic templates. Background Technique

[0002] PVC plastic templates are building templates made of polyvinyl chloride materials. Due to their light weight, durability, reusability and other characteristics, they are widely used in construction projects. Compared with traditional wooden templates, PVC templates have the advantages of waterproofing, anti-corrosion, and not easy to deform, and do not require special maintenance, which greatly reduces the construction cost. In addition, PVC plastic templates can be recycled, with outstanding environmental protection performance, meeting the concept of green buildings. Their easy processability and flexibility make construction more convenient, shorten the project cycle, and also reduce the dependence on natural resources. In the process of processing PVC plastic templates, a twin-screw extrusion device is required to perform the extrusion molding process.

[0003] Generally, after the twin-screw extrusion device extrudes and forms the PVC plastic template, since the temperature of the extruded material is relatively high, and usually the main effect of the twin-screw extrusion device is relatively limited to the extrusion molding function. Therefore, after the PVC plastic template is extruded, the staff still needs to transfer it to the cooling system, which is not only time-consuming and laborious, but also unable to achieve continuous processing. At the same time, it is impossible to cool in time during extrusion, which easily causes the temperature of the PVC plastic template not to drop rapidly after extrusion and forming, and may lead to unstable product quality and quality problems such as deformation and bubbles.

[0004] Therefore, in view of the above problems, we need to propose a twin-screw extrusion device for PVC plastic templates. Content of the Utility Model

[0005] The purpose of the utility model is to provide a twin-screw extrusion device for PVC plastic templates to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: A twin-screw extrusion device for PVC plastic templates, including a connecting plate, and further including:

[0007] An extrusion device body arranged on the right side of the top of the connecting plate, a feeding shell is arranged on the top of the extrusion device body, and an extrusion head is arranged on the left side of the extrusion device body;

[0008] A cooling shell fixedly connected to the left side of the top of the connecting plate, a scale is fixedly connected to the right side of the rear side of the inner cavity of the cooling shell;

[0009] A water cooling component arranged at the bottom of the connecting plate and capable of circulating cooling the PVC plastic template.

[0010] Preferably, the water cooling assembly includes a water tank which is arranged at the front side of the bottom of the connecting plate. A first water pipe is communicated with the right side of the water tank. A first water pump is communicated with the top of the first water pipe. A second water pipe is communicated with the left side of the first water pump. The top of the second water pipe is communicated with the cooling shell. A purification shell is communicated with the left side of the water tank. A third water pipe is communicated with the left side of the purification shell. A second water pump is communicated with the top of the third water pipe. A fourth water pipe is communicated with the left side of the second water pump. The top of the fourth water pipe is communicated with the left side of the cooling shell.

[0011] Preferably, an installation ring is sleeved on the bottom surface of the purification shell, and positioning holes are formed on the surface of the installation ring.

[0012] Preferably, a first driving roller, a second driving roller, a third driving roller and a fourth driving roller are respectively arranged in the inner cavity of the cooling shell. Conveyor belts are arranged between the surfaces of the first driving roller and the third driving roller and between the surfaces of the second driving roller and the fourth driving roller.

[0013] Preferably, a motor is fixedly connected to the rear side of the cooling shell. The output end of the motor is fixedly connected to the third driving roller. Driving wheels are fixedly connected to the front sides of the third driving roller and the fourth driving roller. A transmission belt is arranged between the surfaces of the two driving wheels.

[0014] Preferably, a guide plate is fixedly connected to the inner cavity of the cooling shell, and the guide plate is inclined.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the water cooling assembly, the present utility model can circulate and purify the cooling water inside the cooling shell, prevent impurities from existing in the cooling water, and affect the quality of the just-extruded PVC plastic template. Through the first driving roller, the second driving roller and the conveyor belt, the PVC plastic template can be conveyed and guided. Through the cooling shell, the just-extruded PVC plastic template can be timely cooled by the cooling water inside it, preventing bubbles and other bad phenomena due to high temperature and affecting the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram provided by the present utility model;

[0018] Figure 2 is the rear structural schematic diagram provided by the present utility model;

[0019] Figure 3 is the internal structural schematic diagram of the cooling shell provided by the present utility model;

[0020] Figure 4 is the structural schematic diagram of the water cooling assembly provided by the present utility model.

[0021] In the figure: 1. Connecting plate; 2. Extrusion device body; 3. Feeding shell; 4. Extrusion head; 5. Cooling shell; 6. Water cooling component; 601. Water tank; 602. Second water pipe; 603. First water pump; 604. First water pipe; 605. Purification shell; 606. Installation ring; 607. Third water pipe; 608. Second water pump; 609. Fourth water pipe; 7. First driving roller; 8. Second driving roller; 9. Driving wheel; 10. Transmission belt; 11. Motor; 12. Scale; 13. Conveyor belt; 14. Guide plate; 15. Third driving roller; 16. Fourth driving roller. Specific embodiments

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 As shown, a twin-screw extrusion device for PVC plastic templates includes a connecting plate 1, and also includes an extrusion device body 2 arranged on the right side of the top of the connecting plate 1. The extrusion device body 2 can heat and extrude the PVC plastic template raw material into a formed shape. A feeding shell 3 is arranged on the top of the extrusion device body 2. The feeding shell 3 is located on the top of the extrusion device body 2, and its function is to facilitate the staff to feed the PVC plastic template raw material. An extrusion head 4 is arranged on the left side of the extrusion device body 2. The extrusion head 4 is located at the discharging position of the extrusion device body 2, and its function is to extrude the PVC plastic template raw material in a specified shape;

[0024] A cooling shell 5 fixedly connected to the left side of the top of the connecting plate 1. The cooling shell 5 is located on one side of the top of the connecting plate 1, and its function is to cool the just-extruded PVC plastic template. A scale 12 is fixedly connected to the right side of the rear side of the inner cavity of the cooling shell 5. The scale 12 is located inside the cooling shell 5, and its function is to facilitate the staff to observe the water level of the cooling water;

[0025] A water cooling component 6 arranged at the bottom of the connecting plate 1 and capable of circulatingly cooling the PVC plastic template.

[0026] The water-cooling assembly 6 includes a water tank 601 which is located at the bottom of the connecting plate 1 and functions to store cooling water. The water tank 601 is arranged at the front side of the bottom of the connecting plate 1. A first water pipe 604 is connected to the right side of the water tank 601. The top of the first water pipe 604 is connected to a first water pump 603 which is located at the top of the connecting plate 1 and functions to extract the cooling water inside the cooling shell 5. The left side of the first water pump 603 is connected to a second water pipe 602, and the top of the second water pipe 602 is connected to the cooling shell 5. A purification shell 605 is connected to the left side of the water tank 601. A third water pipe 607 is connected to the left side of the purification shell 605. The top of the third water pipe 607 is connected to a second water pump 608 which is located on the other side of the top of the connecting plate 1 and functions to inject the cooling water in the water tank 601 into the inside of the cooling shell 5. The left side of the second water pump 608 is connected to a fourth water pipe 609, and the top of the fourth water pipe 609 is connected to the left side of the cooling shell 5.

[0027] An installation ring 606 is sleeved on the bottom surface of the purification shell 605. The installation ring 606 is located on the bottom surface of the purification shell 605 and functions to facilitate the staff to fix the purification shell 605 on the ground. Positioning holes are formed on the surface of the installation ring 606.

[0028] A first driving roller 7, a second driving roller 8, a third driving roller 15 and a fourth driving roller 16 are respectively arranged in the inner cavity of the cooling shell 5. Conveyor belts 13 are arranged between the surfaces of the first driving roller 7 and the third driving roller 15 and between the surfaces of the second driving roller 8 and the fourth driving roller 16. Through the two first driving rollers 7, the second driving roller 8, the third driving roller 15, the fourth driving roller 16 and the two conveyor belts 13, the extruded PVC plastic template can be transmitted and guided.

[0029] A motor 11 is fixedly connected to the rear side of the cooling shell 5. The output end of the motor 11 is fixedly connected to the third driving roller 15. Driving wheels 9 are respectively fixedly connected to the front sides of the third driving roller 15 and the fourth driving roller 16. A transmission belt 10 is arranged between the surfaces of the two driving wheels 9. Through the motor 11, the third driving roller 15, the fourth driving roller 16, the driving wheels 9 and the transmission belt 10, the conveyor belts 13 on the surfaces of the first driving roller 7 and the third driving roller 15 and between the surfaces of the second driving roller 8 and the fourth driving roller 16 can be driven to rotate simultaneously.

[0030] A guide plate 14 is fixedly connected to the inner cavity of the cooling shell 5. The guide plate 14 is located in the inner cavity of the cooling shell 5 and functions to guide the PVC plastic template. The guide plate 14 is arranged obliquely.

[0031] Working principle: When the staff processes the PVC plastic template, first, the raw material is discharged into the interior of the extrusion device body 2 through the blanking shell 3. Subsequently, the extrusion device body 2 heats the PVC plastic template raw material and extrudes it through the extrusion head 4 into the interior of the cooling shell 5. First, the PVC plastic template will fall on the conveyor belt 13 on the surfaces of the two second driving rollers 8. Since the positions of the two second driving rollers 8 are relatively low and there is cooling water in the interior of the cooling shell 5, the PVC plastic template will be cooled immediately upon extrusion, effectively preventing adverse phenomena such as blistering of the PVC plastic template due to high temperature. After water cooling, the PVC plastic template will be displaced along with the conveyor belt 13 of the two second driving rollers 8 to the conveyor belt 13 on the surfaces of the two first conveying rollers and discharged outward. At this time, the first water pump 603 is turned on. The first water pump 603 will extract the cooling water in the interior of the cooling shell 5 through the second water pipe 602 into the interior of the water tank 601. Subsequently, the second water pump 608 is turned on again to extract the cooling water in the interior of the water tank 601 into the interior of the purification shell 605 for purification and then inject it into the interior of the third water pipe 607. With the continuous extraction of the second water pump 608, finally, the cooling water will be injected into the interior of the cooling shell 5 again through the fourth water pipe 609 for use, effectively recycling the cooling water and preventing impurities in the cooling water from affecting the quality of the freshly extruded PVC plastic template.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC plastic template twin-screw extruder, comprising a connecting plate (1), characterized in that: Also includes: An extrusion device body (2) is arranged on the right side of the top of the connection plate (1), a material discharge shell (3) is arranged on the top of the extrusion device body (2), and an extrusion head (4) is arranged on the left side of the extrusion device body (2); A cooling shell (5) is fixedly connected to the left side of the top of the connecting plate (1), and a scale (12) is fixedly connected to the right side of the rear side of the inner cavity of the cooling shell (5); A water cooling component (6) is arranged at the bottom of the connecting plate (1) and is capable of circulating cooling the PVC plastic template.

2. The PVC plastic template twin-screw extruder according to claim 1, characterized in that: The water cooling assembly (6) comprises a water tank (601), wherein the water tank (601) is arranged on the front side of the bottom of the connecting plate (1), the right side of the water tank (601) is connected to a first water pipe (604), the top of the first water pipe (604) is connected to a first water pump (603), the left side of the first water pump (603) is connected to a second water pipe (602), the top of the second water pipe (602) is connected to a cooling shell (5), the left side of the water tank (601) is connected to a purification shell (605), the left side of the purification shell (605) is connected to a third water pipe (607), the top of the third water pipe (607) is connected to a second water pump (608), the left side of the second water pump (608) is connected to a fourth water pipe (609), and the top of the fourth water pipe (609) is connected to the left side of the cooling shell (5).

3. The PVC plastic template twin-screw extruder according to claim 2, characterized in that: A mounting ring (606) is sleeved on the bottom of the surface of the purification shell (605), and a positioning hole is opened on the surface of the mounting ring (606).

4. The PVC plastic template twin-screw extruder according to claim 1, characterized in that: The inner cavity of the cooling shell (5) is respectively provided with a first transmission roller (7), a second transmission roller (8), a third transmission roller (15) and a fourth transmission roller (16), and a conveyor belt (13) is provided between the surfaces of the first transmission roller (7) and the third transmission roller (15) and the second transmission roller (8) and the fourth transmission roller (16).

5. The PVC plastic template twin-screw extruder according to claim 4, characterized in that: A motor (11) is fixedly connected to the rear side of the cooling shell (5); an output end of the motor (11) is fixedly connected to a third transmission roller (15); front sides of the third transmission roller (15) and a fourth transmission roller (16) are both fixedly connected to transmission wheels (9); and a transmission belt (10) is provided between the surfaces of the two transmission wheels (9).

6. The PVC plastic template twin-screw extruder according to claim 1, characterized in that: The inner cavity of the cooling shell (5) is fixedly connected to a guide plate (14), and the guide plate (14) is arranged in an inclined manner.

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