Open mill for preparing PVC (polyvinyl chloride) film raw materials

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) film raw material preparation, and discloses an open mill for PVC film raw material preparation, which comprises a machine body, a compression roller arranged on the outer side of the machine body, and a material blocking component arranged on the outer side of the compression roller and used for blocking raw materials from falling off; the connecting rod is arranged on the outer side of the material blocking assembly, the outer side of the connecting rod is provided with a scraping plate for scraping raw materials adhered to the pressing roller, and the outer side of the material blocking assembly is provided with a mounting sleeve for mounting the connecting rod; the first baffle moves along with the movement of the compression rollers and drives the connecting plate to move in the second baffle, so that the material blocking area can be adjusted according to the position between the two groups of compression rollers, raw materials adhered to the outer sides of the compression rollers are scraped by the scraping plates on the outer sides of the compression rollers, and insufficient raw material open milling is avoided; the worm wheel drives the connecting rod to rotate, and the connecting rod is fixedly connected with the scraper, so that the scraping angle of the scraper is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC film raw material preparation, in particular to an open mill for preparing PVC film raw materials. Background Art

[0002] PVC film is a common plastic material, often used to make building waterproofing membranes, packaging materials, etc. In the process of producing PVC film, a device called "open mill" is needed, also known as "plasticizer mixer". Its main function is to mix raw materials such as polyvinyl chloride (PVC) particles and additives to achieve a certain degree of uniformity and stability for subsequent production processes. Therefore, the "open mill" is one of the indispensable equipment for manufacturing PVC film raw materials.

[0003] At present, when some open mixing mills use pressure rollers to refine raw materials, the raw materials are easy to fall from the pressure rollers, thus affecting the refining efficiency of the raw materials. Although some open mixing mills are equipped with baffles, the position of the baffle cannot be adjusted according to the change of the pressure roller position, and the raw materials are easy to adhere to the pressure rollers, affecting the refining efficiency. Utility Model Content

[0004] The utility model aims to provide an open mill for preparing PVC film raw materials to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an open mill for preparing PVC film raw materials, comprising a machine body, and also comprising:

[0006] A pressing roller is arranged on the outside of the machine body, and a material blocking component is arranged on the outside of the pressing roller to prevent the raw materials from falling;

[0007] A connecting rod is arranged on the outside of the material blocking assembly, a scraper for scraping off the raw materials adhered to the pressure roller is arranged on the outside of the connecting rod, a mounting sleeve for mounting the connecting rod is arranged on the outside of the material blocking assembly, and an adjusting assembly for adjusting the scraper position is arranged on the outside of the connecting rod.

[0008] Preferably, the material baffle assembly comprises a first baffle and a second baffle respectively arranged on the outer sides of the two pressure rollers, the outer side of the first baffle is fixedly connected to a connecting plate, and the connecting plate moves inside the second baffle.

[0009] Preferably, a bearing is provided on the outer side of the connecting rod, and the bearing is fixed inside the mounting sleeve.

[0010] Preferably, the adjustment assembly includes a worm wheel fixedly connected to the outside of the connecting rod, a connecting rod is provided on the outside of the mounting sleeve, a worm is provided on the outside of the connecting rod, and the worm wheel and the worm are meshed.

[0011] Preferably, a rotating wheel is arranged on the outer side of the worm, and a shifting rod is arranged on the outer side of the rotating wheel.

[0012] Preferably, a bracket for limiting the position of the second baffle is provided on the outer side of the body.

[0013] Preferably, a moving component for adjusting the position of the pressure roller is provided on the outer side of the machine body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model discloses a first baffle plate that moves with the movement of the pressure roller, drives the connecting plate to move inside the second baffle plate, thereby can adjust the material blocking area according to the position between the two groups of pressure rollers, utilizes the scraper plate on the outside of the pressure roller to scrape off the raw material adhering to the outside of the pressure roller, avoids the raw material from being insufficiently refined, the worm drives the worm wheel to rotate, the worm wheel drives the connecting rod to rotate, the connecting rod is fixedly connected to the scraper plate, thereby can adjust the scraping angle of the scraper plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of an open mill for preparing PVC film raw materials provided by the utility model;

[0017] Figure 2 A schematic diagram of the structure of the material blocking assembly provided by the utility model;

[0018] Figure 3 A schematic diagram of the connection structure of the pressure roller and the scraper provided by the utility model;

[0019] Figure 4 A schematic diagram of the connection structure of the connecting rod and the mounting sleeve provided by the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the adjustment component provided by the utility model.

[0021] In the figure: 1. machine body; 2. pressure roller; 3. material baffle assembly; 301. first baffle plate; 302. second baffle plate; 303. connecting plate; 4. connecting rod; 5. scraper; 6. mounting sleeve; 7. adjustment assembly; 701. worm gear; 702. connecting rod; 703. worm; 8. bearing; 9. rotating wheel; 10. bracket. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 As shown, an open mill for preparing PVC film raw materials includes a machine body 1, and also includes: a pressure roller 2 arranged on the outside of the machine body 1, a material blocking component 3 for blocking the raw materials from falling is arranged on the outside of the pressure roller 2; a connecting rod 4 arranged on the outside of the material blocking component 3, a scraper 5 for scraping off the raw materials adhered to the pressure roller 2 is arranged on the outside of the connecting rod 4, a mounting sleeve 6 for mounting the connecting rod 4 is arranged on the outside of the material blocking component 3, and an adjusting component 7 for adjusting the position of the scraper 5 is arranged on the outside of the connecting rod 4.

[0024] It should be noted that: the pressure rollers 2 are symmetrically arranged in two groups, one group is arranged to rotate at a fixed position, and the other group is connected to the moving component and can be moved.

[0025] refer to Figure 1 and Figure 2 As shown, a moving assembly for adjusting the position of the pressing roller 2 is arranged on the outer side of the machine body 1; the material blocking assembly 3 comprises a first baffle 301 and a second baffle 302 respectively arranged on the outer sides of the two pressing rollers 2, a connecting plate 303 is fixedly connected to the outer side of the first baffle 301, and the connecting plate 303 moves inside the second baffle 302; a bracket 10 for limiting the position of the second baffle 302 is arranged on the outer side of the machine body 1. The moving assembly is composed of a commonly used screw and a screw sleeve, wherein a group of pressing rollers 2 is connected to the screw by the screw sleeve, and the screw sleeve and the pressing roller 2 are driven by the screw to move, and the position between the two groups of pressing rollers 2 is adjusted, and the first baffle 301 moves with the movement of the pressing roller 2, driving the connecting plate 303 to move inside the second baffle 302, so that the area of ​​the material blocking can be adjusted according to the position between the two groups of pressing rollers 2.

[0026] refer to Figure 3 , Figure 4 and Figure 5 As shown, a bearing 8 is arranged on the outside of the connecting rod 4, and the bearing 8 is fixed inside the mounting sleeve 6. The bearing 8 is fixed inside the mounting sleeve 6, and the connecting rod 4 rotates inside the bearing 8.

[0027] refer to Figure 5 As shown, the adjustment assembly 7 includes a worm wheel 701 fixedly connected to the outside of the connecting rod 4, a connecting rod 702 is arranged on the outside of the mounting sleeve 6, a worm 703 is arranged on the outside of the connecting rod 702, and the worm wheel 701 and the worm 703 are meshed; a rotating wheel 9 is arranged on the outside of the worm 703, and a lever is arranged on the outside of the rotating wheel 9. The rotating wheel 9 is driven to rotate the connecting rod 702, the connecting rod 702 drives the worm 703 to rotate, the worm 703 drives the worm wheel 701 to rotate, and the worm wheel 701 drives the connecting rod 4 to rotate, and the connecting rod 4 is fixedly connected to the scraper 5, so as to adjust the scraping angle of the scraper 5.

[0028] Working principle: The first baffle 301 moves with the movement of the pressure roller 2, driving the connecting plate 303 to move inside the second baffle 302, so that the area of ​​the material blocking can be adjusted according to the position between the two groups of pressure rollers 2, and the raw materials are blocked between the two groups of pressure rollers 2 by the baffle, thereby improving the refining efficiency of the raw materials, and the scraper 5 on the outside of the pressure roller 2 is used to scrape off the raw materials adhering to the outside of the pressure roller 2 to avoid insufficient refining of the raw materials, and the rotating wheel 9 is turned to drive the connecting rod 702 to rotate, and the connecting rod 702 drives the worm 703 to rotate, and the worm 703 drives the worm wheel 701 to rotate, and the worm wheel 701 drives the connecting rod 4 to rotate, and the connecting rod 4 is fixedly connected to the scraper 5, thereby adjusting the scraping angle of the scraper 5.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mixing mill for preparing PVC film raw materials, comprising a machine body (1), characterized in that: Also includes: A pressing roller (2) is arranged on the outside of the machine body (1), and a material blocking component (3) is arranged on the outside of the pressing roller (2) to block the raw material from falling; A connecting rod (4) is arranged on the outside of the material blocking component (3), a scraper (5) for scraping off the raw materials adhering to the pressure roller (2) is arranged on the outside of the connecting rod (4), a mounting sleeve (6) for mounting the connecting rod (4) is arranged on the outside of the material blocking component (3), and an adjustment component (7) for adjusting the position of the scraper (5) is arranged on the outside of the connecting rod (4).

2. The open mill for preparing PVC film raw material according to claim 1, characterized in that: The material baffle assembly (3) comprises a first baffle (301) and a second baffle (302) respectively arranged on the outside of the two pressure rollers (2); a connecting plate (303) is fixedly connected to the outside of the first baffle (301); and the connecting plate (303) moves inside the second baffle (302).

3. The open mill for preparing PVC film raw material according to claim 1, characterized in that: A bearing (8) is provided on the outer side of the connecting rod (4), and the bearing (8) is fixed inside the mounting sleeve (6).

4. The open mill for preparing PVC film raw material according to claim 1, characterized in that: The adjustment assembly (7) comprises a worm wheel (701) fixedly connected to the outside of the connecting rod (4); a connecting rod (702) is arranged on the outside of the mounting sleeve (6); a worm (703) is arranged on the outside of the connecting rod (702); and the worm wheel (701) and the worm (703) are meshed.

5. The open mill for preparing PVC film raw material according to claim 4, characterized in that: A rotating wheel (9) is arranged on the outer side of the worm (703), and a shifting rod is arranged on the outer side of the rotating wheel (9).

6. The open mill for preparing PVC film raw material according to claim 2, characterized in that: A bracket (10) for limiting the position of the second baffle (302) is arranged on the outer side of the machine body (1).

7. The open mill for preparing PVC film raw material according to claim 1, characterized in that: A moving component for adjusting the position of the pressing roller (2) is arranged on the outside of the machine body (1).

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