A resin extruder for PVC film production

Abstract

This utility model relates to the field of extruder technology and discloses a resin extruder for PVC film production, including an extruder body, and further including: an installation mechanism, a cooling mechanism, and a film body. The inner side wall of the installation mechanism is movably sleeved with the side of the cooling mechanism. The top end of the extruder body is fixedly connected to the bottom end of the installation mechanism. The installation mechanism includes a side plate, and an installation groove is opened on the side of the side plate. A movable block is movably connected to the side of the installation groove. The cooling mechanism includes cooling rollers, and the side of the cooling rollers is movably sleeved with the side of the movable block. The cooling rollers are staggered on the side of the side plate. In this utility model, the film body is formed into a thin sheet after being hot-melted by the extruder body. Therefore, the film body is spread out by the interlaced cooling rollers, which increases the distance of the film body inside the side plate and prolongs the cooling time, which is beneficial to improving the cooling efficiency of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and more specifically to a resin extruder for PVC film production. Background Technology

[0002] PVC film is a type of vacuum-formed film used for surface packaging of various panels, hence it is also known as decorative film or adhesive film. It is used in many industries such as building materials, packaging, and pharmaceuticals, with the building materials industry accounting for the largest share, followed by the packaging industry, and several other smaller-scale applications. Extruders are important equipment in the production of PVC film. The main function of extruders is to process resin raw materials through processes such as heating, melting, extrusion, and cooling to produce film products. Specifically, film extruders play a crucial role in the plastics processing industry.

[0003] Inadequacies of existing technology: When processing PVC film, existing extruders mostly use guide rollers to stretch the film and then cool it by blowing air. However, the glass is in a molten state when it is extruded from the extruder and has not completely solidified. During the transportation process, the film is prone to vibration and breakage. In addition, the film has a short cooling stroke and poor cooling effect. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a resin extruder for PVC film production and preparation, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a resin extruder for PVC film production, comprising an extruder body, and further comprising: an installation mechanism, a cooling mechanism, and a film body. The inner side wall of the installation mechanism is movably sleeved with the side of the cooling mechanism, the side of the film body is movably connected with the side of the cooling mechanism, the top end of the extruder body is fixedly connected with the bottom end of the installation mechanism, the installation mechanism includes a side plate, the bottom end of the side plate is fixedly connected with the top end of the extruder body, the side of the side plate has an installation groove, and a movable block is movably connected to the side of the installation groove, the cooling mechanism includes a cooling roller, the side of the cooling roller is movably sleeved with the side of the movable block, the side of the cooling roller is movably connected to the side of the film body, and the cooling rollers are staggered on the side of the side plate.

[0006] Furthermore, the tangents of adjacent cooling rollers are in the same vertical direction, and guide rollers are movably sleeved on the side of the side plate.

[0007] Furthermore, a through groove is provided on the side of the side plate, and a cooling fan is fixedly connected to the side of the through groove.

[0008] Furthermore, a heat exchange tube is fixedly connected to the inner wall of the cooling roller, and a sealing ring is movably sleeved on the side of the cooling roller corresponding to the position of the heat exchange tube. A connecting pipe is fixedly connected to the side of the sealing ring.

[0009] Furthermore, the heat exchange tube has a spiral structure.

[0010] Furthermore, a lower shock-absorbing spring is fixedly connected to the bottom end of the mounting groove, and the top end of the lower shock-absorbing spring is fixedly connected to the bottom end of the movable block. An upper shock-absorbing spring is fixedly connected to the top end of the mounting groove, and the bottom end of the upper shock-absorbing spring is fixedly connected to the top end of the movable block.

[0011] Furthermore, a lower damper is fixedly connected to the bottom end of the mounting groove, and the top end of the lower damper is fixedly connected to the bottom end of the movable block. An upper damper is fixedly connected to the top end of the mounting groove, and the bottom end of the upper damper is fixedly connected to the top end of the movable block.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, the film body is formed into a sheet by hot melting and molding through the body of the extruder. Therefore, it passes through the cooling rollers. The interlaced cooling rollers unfold the film body, increase the distance of the film body inside the side plate, prolong the cooling time, and help improve the cooling efficiency of the equipment.

[0014] 2. This utility model uses the cooperation of upper and lower damping springs to position the movable block in the center of the mounting groove. When vibration occurs during the conveying of the film body, the movable block slides up and down along the mounting groove to buffer the cooling roller. The upper and lower dampers absorb mechanical energy, preventing damage to the film body and improving equipment safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the installation mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the mounting groove structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the movable block structure of this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the cooling mechanism of this utility model.

[0020] Figure 6 This is a schematic diagram of the heat exchange tube structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Extruder body; 2. Mounting mechanism; 201. Side plate; 202. Mounting groove; 203. Guide roller; 204. Through groove; 205. Cooling fan; 206. Movable block; 207. Lower damping spring; 208. Lower damper; 209. Upper damper; 210. Upper damping spring; 3. Cooling mechanism; 301. Cooling roller; 302. Sealing ring; 303. Connecting pipe; 304. Heat exchange pipe; 4. Film body. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The resin extruder for PVC film production and preparation involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figures 1 to 6 This utility model provides a resin extruder for PVC film production, including an extruder body 1, and further including: an installation mechanism 2, a cooling mechanism 3, and a film body 4. The inner side wall of the installation mechanism 2 is movably sleeved with the side of the cooling mechanism 3, and the side of the film body 4 is movably connected to the side of the cooling mechanism 3. The top end of the extruder body 1 is fixedly connected to the bottom end of the installation mechanism 2. The installation mechanism 2 includes a side plate 201, the bottom end of which is fixedly connected to the top end of the extruder body 1, and an installation groove 202 is formed on the side of the side plate 201. The mounting groove 202 is movably connected to the side of the movable block 206. The cooling mechanism 3 includes a cooling roller 301. The side of the cooling roller 301 is movably sleeved with the side of the movable block 206. The side of the cooling roller 301 is movably connected to the side of the film body 4. The cooling rollers 301 are staggered on the side of the side plate 201. The film body 4 is formed into a thin sheet after being hot-melted by the extruder body 1. Therefore, it passes through the cooling rollers 301. The staggered cooling rollers 301 unfold the film body 4, increase the distance of the film body 4 inside the side plate 201, and prolong the cooling time.

[0024] The tangents of adjacent cooling rollers 301 are in the same vertical direction, and the side plate 201 is movably sleeved with a guide roller 203 to ensure that the film body 4 is only subjected to force in the vertical direction when passing through the cooling roller 301, so as to avoid damage to the film body 4 caused by additional directional force.

[0025] The side plate 201 has a through groove 204 on its side, and a cooling fan 205 is fixedly connected to the side of the through groove 204. Cooling fans 205 are installed on both side plates 201, and the cooling fans 205 blow air in opposite directions, so that air can quickly circulate from the inside of the side plate 201 and improve the heat dissipation efficiency.

[0026] The inner wall of the cooling roller 301 is fixedly connected to a heat exchange tube 304. A sealing ring 302 is movably sleeved on the side of the cooling roller 301 corresponding to the position of the heat exchange tube 304. A connecting pipe 303 is fixedly connected to the side of the sealing ring 302. Cooling water is connected to the connecting pipe 303. The sealing ring 302 is located at the port of the heat exchange tube 304. As the cooling roller 301 rotates, the port of the heat exchange tube 304 is always located inside the sealing ring 302. Cooling water enters the heat exchange tube 304 through the connecting pipe 303 and the sealing ring 302 to circulate and cool the cooling roller 301, thereby cooling the film body 4.

[0027] Among them, the heat exchange tube 304 has a spiral structure.

[0028] The bottom end of the mounting groove 202 is fixedly connected to a lower shock-absorbing spring 207, and the top end of the lower shock-absorbing spring 207 is fixedly connected to the bottom end of the movable block 206. The top end of the mounting groove 202 is fixedly connected to an upper shock-absorbing spring 210, and the bottom end of the upper shock-absorbing spring 210 is fixedly connected to the top end of the movable block 206. The upper shock-absorbing spring 210 and the lower shock-absorbing spring 207 work together to position the movable block 206 at the center of the mounting groove 202. When the film body 4 vibrates during the conveying process, the movable block 206 slides up and down along the mounting groove 202 to buffer the cooling roller 301 and prevent damage to the film body 4.

[0029] The bottom end of the mounting groove 202 is fixedly connected to a lower damper 208, the top end of the lower damper 208 is fixedly connected to the bottom end of the movable block 206, the top end of the mounting groove 202 is fixedly connected to an upper damper 209, and the bottom end of the upper damper 209 is fixedly connected to the top end of the movable block 206. When the upper damping spring 210 and the lower damping spring 207 contract and deform, the upper damper 209 and the lower damper 208 absorb mechanical energy.

[0030] The working principle of this utility model is as follows: After the film body 4 is hot-melt extruded and formed by the extruder body 1, it passes through the guide roller 203 and the cooling roller 301 in sequence. Because the cooling rollers 301 are staggered, the cooling time of the film body 4 inside the mounting mechanism 2 is increased. At the same time, during the conveying process of the film body 4, the upper damping spring 210 and the lower damping spring 207 cooperate to keep the movable block 206 in the center of the mounting groove 202. When the film body 4 vibrates during the conveying process, the movable block 206 slides up and down along the mounting groove 202 to buffer the cooling roller 301. At the same time, when the upper damping spring 210 and the lower damping spring 207 contract and deform, the upper damper 209 and the lower damper 208 absorb mechanical energy to avoid damage to the film body 4. Cooling water enters the heat exchange tube 304 through the connecting pipe 303 and the sealing ring 302 for circulation, cooling the cooling roller 301 and thus cooling the film body 4. At the same time, the cooling fans 205 on both sides blow air in opposite directions, allowing air to flow quickly from the inside of the side plate 201 and improving the heat dissipation efficiency.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A resin extruder for the production of PVC film, comprising an extruder body (1), characterized in that, Also includes: The installation mechanism (2), cooling mechanism (3), and film body (4) are provided. The inner side wall of the installation mechanism (2) is movably sleeved with the side of the cooling mechanism (3). The side of the film body (4) is movably connected with the side of the cooling mechanism (3). The top end of the extruder body (1) is fixedly connected with the bottom end of the installation mechanism (2). The installation mechanism (2) includes a side plate (201). The bottom end of the side plate (201) is fixedly connected with the top end of the extruder body (1). The side of the side plate (201) is provided with an installation groove (202). The side of the installation groove (202) is movably connected with a movable block (206). The cooling mechanism (3) includes a cooling roller (301). The side of the cooling roller (301) is movably sleeved with the side of the movable block (206). The side of the cooling roller (301) is movably connected with the side of the film body (4). The cooling rollers (301) are staggered on the side of the side plate (201).

2. The resin extruder for the production of PVC film according to claim 1, characterized in that: The tangents of adjacent cooling rollers (301) are in the same vertical direction, and the side plate (201) is movably sleeved with a guide roller (203).

3. The resin extruder for PVC film production and preparation according to claim 1, characterized in that: The side plate (201) has a through groove (204) on its side, and a cooling fan (205) is fixedly connected to the side of the through groove (204).

4. The resin extruder for PVC film production and preparation according to claim 1, characterized in that: A heat exchange tube (304) is fixedly connected to the inner wall of the cooling roller (301), and a sealing ring (302) is movably sleeved on the side of the cooling roller (301) corresponding to the position of the heat exchange tube (304). A connecting tube (303) is fixedly connected to the side of the sealing ring (302).

5. The resin extruder for PVC film production and preparation according to claim 4, characterized in that: The heat exchange tube (304) has a spiral structure.

6. The resin extruder for PVC film production and preparation according to claim 1, characterized in that: A lower damping spring (207) is fixedly connected to the bottom end of the mounting groove (202), and the top end of the lower damping spring (207) is fixedly connected to the bottom end of the movable block (206). An upper damping spring (210) is fixedly connected to the top end of the mounting groove (202), and the bottom end of the upper damping spring (210) is fixedly connected to the top end of the movable block (206).

7. The resin extruder for PVC film production and preparation according to claim 1, characterized in that: The bottom end of the mounting groove (202) is fixedly connected to a lower damper (208), the top end of the lower damper (208) is fixedly connected to the bottom end of the movable block (206), and the top end of the mounting groove (202) is fixedly connected to an upper damper (209), the bottom end of the upper damper (209) is fixedly connected to the top end of the movable block (206).

Images