High-stability PE film continuous blow molding production device

Abstract

The invention discloses a high-stability PE film continuous blow molding production device, and belongs to the technical field of blow molding production device.The high-stability PE film continuous blow molding production device comprises a device body, a moving mechanism is connected to the outer portion of a rotating shaft, and a limiting mechanism used for limiting a first scraper is connected into a supporting frame; the exterior of the supporting frame is connected with an opposite mechanism, and a driving mechanism used for driving the inclined plate to incline is installed in the device body. Rapid disassembly-free cleaning of the first roll shaft is achieved through the moving mechanism, a bidirectional lead screw is used for driving a sliding block to drive a first scraper to abut against the roll shaft, residues are removed in combination with rotation friction of the first roll shaft, productivity reduction caused by disassembly shutdown is effectively avoided, and the technical problem that a traditional cleaning mode is long in time consumption is solved; a first support and a fixing shaft of the limiting mechanism are matched with a sliding plate, the first scraper is precisely guided, it is ensured that the cleaning process is stable, the roller shaft is prevented from being damaged, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This invention belongs to the technical field of blow molding production equipment, specifically relating to a high-stability PE film continuous blow molding production equipment. Background Technology

[0002] The high-stability PE film continuous blow molding production equipment is a device that produces polyethylene film through continuous extrusion, blowing, cooling and winding processes. Its core components include an extruder, precision die head, cooling air ring and traction system. Through automatic control, it ensures stable temperature and pressure, and achieves uniform film thickness and stable dimensions. It is widely used in packaging, agriculture and other fields.

[0003] In continuous blow molding production of PE film, the rollers of the traction system are key components, and their cleaning and maintenance directly affect production efficiency and product quality. In existing technologies, raw materials easily remain on the surface of the rollers that come into direct contact with the film during the winding process. These residues can not only cause defects on the film surface (such as decreased transparency, wrinkles, or uneven thickness), but may also lead to equipment failures (such as roller jamming or transmission system overload) due to accumulation. Traditional cleaning methods require complete disassembly of the rollers, involving multiple steps such as loosening the locking device, removing the guides, and handling the cone sleeve, which is time-consuming and requires downtime, severely reducing production capacity. Although some improvement solutions reduce adhesion by optimizing the roller material (such as three-layer composite adhesive), the effect is limited and does not fundamentally solve the cleaning problem. Although automated cleaning devices improve efficiency, they require additional equipment investment, increasing costs.

[0004] Therefore, we propose a high-stability PE film continuous blow molding production device. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a high-stability PE film continuous blow molding production device.

[0006] The technical solution adopted to solve the above technical problems is: a high-stability PE film continuous blow molding production device, including a device body, a support frame fixedly connected to the top of the device body, a first roller installed in the support frame, and a rotating shaft rotatably connected in the support frame; The rotating shaft is externally connected to a moving mechanism, and a first scraper is connected to one side of the moving mechanism. The moving mechanism is used to drive the first scraper to abut against the first roller shaft. A limiting mechanism for limiting the first scraper is connected inside the support frame. The support frame is externally connected to an opposing mechanism, and the opposing mechanism is internally connected to two inclined plates installed inside the support frame. The opposing mechanism is used to drive the tops of the two inclined plates to move closer to each other. The device body is equipped with a drive mechanism for tilting the inclined plate.

[0007] Furthermore, the first roller is used to pull and wind up the film, the first scraper contacts and abuts against the first roller to clean the first roller, and the two inclined plates are combined to form a herringbone plate to assist in pulling the film.

[0008] Through the above technical solution, the first roller and the second roller cooperate to pull and wind the film, the first scraper cleans the film when it abuts against the first roller, and the two inclined plates cooperate to pull the film.

[0009] Furthermore, the moving mechanism includes a bidirectional lead screw fixedly connected to the outside of the rotating shaft. Two mirror-symmetrical sliders are rotatably connected to the outside of the bidirectional lead screw. The top of each slider is rotatably connected to a connecting rod via a rotating shaft, which is also mirror-symmetrical. The other ends of the two connecting rods are rotatably connected to the first scraper via a rotating shaft. One end of the rotating shaft passes through the support frame and is equipped with a handle. Limit blocks are fixedly connected to the bottom of each slider. A limiting shaft passing through the two limiting blocks is fixedly connected inside the support frame.

[0010] Through the above technical solution, the function of the moving mechanism is to move the first scraper. When the first roller needs to be cleaned, the operator manually turns the handle, which drives the rotating shaft and the bidirectional lead screw to rotate. Due to the characteristics of the bidirectional lead screw, the two slide plates move closer to each other, causing the connecting rod to deflect upward and tilt, thus moving the first scraper upward until it touches the first roller. When the first roller rotates, it contacts the first scraper back and forth, and the residue is cleaned by friction and scraping through the first scraper. When cleaning is not needed, the handle is turned in the opposite direction, which moves the first scraper away from the first roller, which can achieve a quick cleaning effect and reduce energy consumption. It does not need to be in constant contact, avoiding damage to the first roller due to prolonged contact. The slider is limited and guided by the limiting block and the limiting shaft, which in turn limits and guides the first scraper.

[0011] Furthermore, the limiting mechanism includes two first brackets that are fixedly connected to both sides of the inner wall of the support frame, and they correspond one to one. Each of the two first brackets is fixedly connected to a fixed shaft. Each of the front ends of the first scraper is fixedly connected to a set of sliding plates, with two plates in each set. The two sets of sliding plates are slidably connected to the two fixed shafts one to one.

[0012] Through the above technical solution, the function of the limiting mechanism is to limit and guide the first scraper. The first bracket cooperates with the fixed shaft to limit and guide the sliding plate, thereby limiting and guiding the first scraper.

[0013] Furthermore, two cylinders are installed on the top of the support frame, and a second roller shaft is installed at the output end of the two cylinders. The second roller shaft cooperates with the first roller shaft. A second scraper corresponding to the second roller shaft is fixedly connected inside the support frame, and a collection box located below the second scraper is fixedly connected inside the support frame.

[0014] With the above technical solution, the function of the cylinder is to push the second roller away from or closer to the first roller. When the roller needs to be cleaned, the cylinder retracts and drives the second roller away from the first roller until the second roller comes into contact with the second scraper. Then the second roller rotates and the second scraper cleans the second roller. The scraped residue is collected by the collection box.

[0015] Furthermore, the opposing mechanism includes two sliding shafts fixedly connected to the tops of the two inclined plates respectively, and they correspond one-to-one. The outer walls of the support frame are fixedly connected to two second brackets. Each of the two second brackets is equipped with a motor. The output ends of the two motors are fixedly connected to gears that are rotatably connected to the support frame. Both ends of the two sliding shafts are fixedly connected to racks. The two racks on each side mesh with the gears and are centrally symmetrical. Multiple limiting blocks are fixedly connected to both sides of the support frame and are slidably connected to the racks.

[0016] Through the above technical solution, the function of the opposing mechanism is to bring the tops of the two inclined plates closer together. When it is necessary to adjust the distance between the tops of the two inclined plates to control the film winding, the motor is started by program control. This part of the design is software controlled and is existing technology. The motor starts, drives the gear to rotate, drives the two racks to move closer together, and drives the tops of the two inclined plates to move closer together. When it is necessary to move them away, the motor rotates in the opposite direction, which facilitates the adjustment and control of the film winding. The distance between the tops of the two inclined plates facilitates the film winding operation. The racks are limited and guided by the limiting block.

[0017] Furthermore, the drive mechanism includes two third brackets fixedly connected inside the main body of the device. Each of the two third brackets is equipped with an electric push rod. The output ends of the two electric push rods are fixedly connected to a movable plate. The bottom of each movable plate is rotatably connected to two inclined rods via a rotating shaft. The two inclined plates at the bottom of each movable plate are rotatably connected to one side of the two inclined plates via a rotating shaft.

[0018] Through the above technical solution, the function of the drive mechanism is to drive the inclined plate to tilt. When it is necessary to drive the inclined plate to tilt and further adjust the opening angle of the two inclined plates, the electric push rod is started by program control. This part is designed with software control and is existing technology. When the electric push rod is started, it drives the moving plate to move downward, drives the two inclined rods to tilt outward, and drives the two inclined plates to tilt outward, so as to facilitate the adjustment of the included angle between the two inclined plates and further control the film winding operation.

[0019] Furthermore, two straight shafts are fixedly connected inside the main body of the device, and the two straight shafts pass through the two moving plates one-to-one.

[0020] The above technical solution uses a straight shaft to limit and guide the moving plate.

[0021] The beneficial effects of this invention are as follows: (1) The present invention achieves rapid, non-disassembly-free cleaning of the first roller shaft through a moving mechanism. The bidirectional screw drives the slider to move the first scraper to abut against the roller shaft. Combined with the rotation and friction of the first roller shaft, the residue is removed, which effectively avoids the reduction in production capacity caused by disassembly and shutdown, and solves the technical problem of long time consumption in traditional cleaning methods. The first bracket of the limiting mechanism cooperates with the fixed shaft and the sliding plate to accurately guide the first scraper, ensuring the stability of the cleaning process and avoiding damage to the roller shaft, thereby improving the service life of the equipment. (2) The present invention uses a cylinder to drive the second roller shaft to cooperate with the second scraper, thereby achieving convenient cleaning of the second roller shaft. Combined with the collection box, the residue is centrally processed, keeping the equipment clean and reducing the risk of failure caused by the accumulation of residue. (3) The present invention drives the rack to move by the motor drive gear of the opposing mechanism, adjusts the distance between the top of the two inclined plates to control the film winding width, and combines the electric push rod of the drive mechanism to adjust the angle of the inclined plate through the inclined rod to optimize the film traction path, solve the problem of film wrinkles or uneven thickness caused by the low winding accuracy of traditional winding, and finally achieves the composite technical effect of improving production efficiency, ensuring product quality and extending equipment life. Attached Figure Description

[0022] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a second-view cross-sectional structural diagram of the present invention; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a third-view cross-sectional structural diagram of the present invention; Figure 5 This is a fourth-view cross-sectional structural diagram of the present invention; Figure 6 yes Figure 5 A magnified view of a section at point B in the middle; Figure 7 This is a fifth-view cross-sectional structural diagram of the present invention; Figure 8 yes Figure 7 A magnified view of a section at point C; Figure 9 This is a sixth-view cross-sectional structural diagram of the present invention; Figure 10 yes Figure 9 A magnified view of a section at point D.

[0023] Reference numerals in the attached drawings: 1. Main body of the device; 2. Support frame; 3. First roller shaft; 4. Rotating shaft; 5. Moving mechanism; 501. Bidirectional lead screw; 502. Slider; 503. Connecting rod; 504. Handle; 505. Limiting block; 506. Limiting shaft; 6. First scraper; 7. Limiting mechanism; 701. First bracket; 702. Fixed shaft; 703. Sliding plate; 704. Cylinder; 705. Second roller shaft; 706. Second scraper; 707. Collection box; 8. Opposing mechanism; 801. Sliding shaft; 802. Second bracket; 803. Motor; 804. Gear; 805. Rack; 806. Limiting block; 9. Inclined plate; 10. Drive mechanism; 1001. Third bracket; 1002. Electric push rod; 1003. Moving plate; 1004. Inclined rod; 1005. Straight shaft. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] like Figures 1-10As shown, a high-stability PE film continuous blow molding production device 1 of this embodiment includes a device body 1. A support frame 2 is fixedly connected to the top of the device body 1. A first roller shaft 3 is installed inside the support frame 2. A rotating shaft 4 is rotatably connected inside the support frame 2. A moving mechanism 5 is connected to the outside of the rotating shaft 4. A first scraper 6 is connected to one side of the moving mechanism 5. The moving mechanism 5 is used to drive the first scraper 6 to abut against the first roller shaft 3. The moving mechanism 5 includes a bidirectional lead screw 501 fixedly connected to the outside of the rotating shaft 4. Two mirror-symmetrical sliders 502 are rotatably connected to the outside of the bidirectional lead screw 501. The top of each slider 502 is rotatably connected to a connecting rod 503 via a rotating shaft, which is also mirror-symmetrical. The other ends of the two connecting rods 503 are rotatably connected to the first scraper 6 via a rotating shaft. One end of the rotating shaft 4 passes through the support frame 2 and is equipped with a handle 504. Limit blocks 505 are fixedly connected to the bottom of each slider 502. A limiting shaft 506, which passes through two limiting blocks 505, is fixedly connected to the moving mechanism 5, which moves the first scraper 6. When the first roller shaft 3 needs to be cleaned, the operator manually turns the handle 504, which drives the rotating shaft 4 and the bidirectional lead screw 501 to rotate. Due to the characteristics of the bidirectional lead screw 501, the two sliders 502 move closer to each other, causing the connecting rod 503 to tilt upwards, which in turn moves the first scraper 6 upwards until it touches the first roller shaft 3. When the first roller shaft 3 rotates, it comes into contact with the first scraper 6 back and forth, and the residue is cleaned by friction and scraping of the first scraper 6. When cleaning is not needed, the handle 504 is turned in the opposite direction, which moves the first scraper 6 away from the first roller shaft 3, which can achieve a quick cleaning effect and reduce energy consumption. It does not need to be in constant contact, avoiding damage to the first roller shaft 3 due to prolonged contact. The limiting blocks 505 and the limiting shaft 506 limit and guide the sliders 502, which in turn limit and guide the first scraper 6.

[0026] refer to Figures 1-3 The support frame 2 is internally connected to a limiting mechanism 7 for limiting the first scraper 6. The limiting mechanism 7 includes two first brackets 701 that are fixedly connected to both sides of the inner wall of the support frame 2, and they correspond one-to-one. Each of the two first brackets 701 has a fixed shaft 702 fixedly connected to it. Each front end of the first scraper 6 has a set of sliding plates 703 fixedly connected to both sides. Each set of sliding plates 703 has two plates. The two sets of sliding plates 703 are slidably connected to the two fixed shafts 702 respectively. The function of the limiting mechanism 7 is to limit and guide the first scraper 6. The first brackets 701 cooperate with the fixed shafts 702 to limit and guide the sliding plates 703, thereby limiting and guiding the first scraper 6.

[0027] refer to Figures 1-4Two cylinders 704 are installed on the top of the support frame 2. The output ends of the two cylinders 704 are connected to a second roller 705. The second roller 705 cooperates with the first roller 3. A second scraper 706 corresponding to the second roller 705 is fixedly connected inside the support frame 2. A collection box 707 located below the second scraper 706 is fixedly connected inside the support frame 2. The function of the cylinders 704 is to push the second roller 705 away from or closer to the first roller 3. When the roller needs to be cleaned, the cylinders 704 contract to drive the second roller 705 away from the first roller 3 until the second roller 705 contacts the second scraper 706. Then the second roller 705 is rotated, and the second roller 705 is cleaned by the second scraper 706. The scraped residue is collected by the collection box 707.

[0028] refer to Figures 5-6 The support frame 2 is externally connected to an opposing mechanism 8, which contains two inclined plates 9 installed within the support frame 2. The opposing mechanism 8 is used to drive the tops of the two inclined plates 9 closer together. The opposing mechanism 8 includes two sliding shafts 801 fixedly connected to the tops of the two inclined plates 9, respectively, and they correspond one-to-one. Second brackets 802 are fixedly connected to both sides of the outer wall of the support frame 2. Motors 803 are installed inside each of the two second brackets 802. Gears 804, which are rotatably connected to the output ends of the two motors 803, are fixedly connected to the output ends of the two motors 803. Racks 805 are fixedly connected to both ends of the two sliding shafts 801. The two racks 805 on each side mesh with the gears 804, forming a [missing information - likely a specific shape or structure]. The support frame 2 is centrally symmetrical, with multiple limiting blocks 806 fixedly connected to both sides, and all of them are slidably connected to the rack 805. The function of the opposing mechanism 8 is to bring the tops of the two inclined plates 9 closer together. When it is necessary to adjust the distance between the tops of the two inclined plates 9 to control the film winding, the motor 803 is started by program control. This part is designed with software control and is existing technology. The motor 803 starts, drives the gear 804 to rotate, drives the two racks 805 to move closer together, and drives the tops of the two inclined plates 9 to move closer together. When it is necessary to move them away, the motor 803 can rotate in the opposite direction, which facilitates the adjustment and control of the film winding. The limiting blocks 806 limit and guide the rack 805.

[0029] refer to Figures 7-10The main body 1 of the device is equipped with a drive mechanism 10 for tilting the inclined plate 9. The drive mechanism 10 includes two third brackets 1001 fixedly connected inside the main body 1. Each of the two third brackets 1001 is equipped with an electric push rod 1002. The output end of each of the two electric push rods 1002 is fixedly connected to a moving plate 1003. The bottom of each of the two moving plates 1003 is rotatably connected to two inclined rods 1004 via a rotating shaft. The two inclined rods 1004 at the bottom of each moving plate 1003 are respectively connected to one of the two inclined plates 9. The edges are connected by a rotating shaft. The function of the drive mechanism 10 is to drive the inclined plate 9 to tilt. When it is necessary to drive the inclined plate 9 to tilt and further adjust the opening angle of the two inclined plates 9, the electric push rod 1002 is started by program control. This part is designed with software control and is existing technology. When the electric push rod 1002 is started, it drives the moving plate 1003 to move downward, drives the two inclined rods 1004 to tilt outward, and drives the two inclined plates 9 to tilt outward, so as to facilitate the adjustment of the included angle between the two inclined plates 9 and further control the film winding operation.

[0030] refer to Figures 7-10 The main body 1 of the device has two straight shafts 1005 fixedly connected inside. The two straight shafts 1005 pass through the two moving plates 1003 respectively, and limit and guide the moving plates 1003 through the straight shafts 1005.

[0031] refer to Figures 1-10 The first roller 3 is used to pull and wind up the film. The first scraper 6 contacts and abuts against the first roller 3 to clean the first roller 3. The two inclined plates 9 are combined to form a herringbone plate to assist in pulling the film. The first roller 3 and the second roller 705 cooperate to pull and wind up the film. When the first scraper 6 abuts against the first roller 3, it cleans it. The two inclined plates 9 cooperate to pull the film.

[0032] The working principle of this embodiment is as follows: When the first roller shaft 3 needs to be cleaned, the operator manually rotates the handle 504 to drive the rotating shaft 4 and the bidirectional lead screw 501 to rotate, driving the two sliders 502 to move towards each other along the limiting shaft 506. The connecting rod 503 pushes the first scraper 6 upwards to press against the first roller shaft 3, utilizing the friction of the rotating first roller shaft 3 to scrape away residue, avoiding disassembly and machine shutdown. The scraped residue falls into the collection box 707 for centralized processing. When the second roller shaft 705 needs to be cleaned, the cylinder 704 retracts to bring the second roller shaft 705 into contact with the second scraper 706, and cleaning is completed by rotating the second roller shaft 705. The motor 8... The drive gear 804 drives the racks 805 on both sides to move, adjusting the top distance of the two inclined plates 9 to control the film winding width. The electric push rod 1002 pushes the moving plate 1003 to move along the straight axis 1005, and the inclined rod 1004 drives the opening angle of the inclined plate 9 to optimize the film traction path. The fixed shaft 702 cooperates with the sliding plate 703 to guide the first scraper 6 to ensure the stability of the cleaning process. The coordinated action of each component realizes rapid cleaning of the roller, continuous production, and precise control of film winding, effectively solving the product defects and equipment failures caused by roller residue in traditional technology, and improving production efficiency and product quality stability.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A high-stability PE film continuous blow molding production apparatus, comprising an apparatus body (1), wherein a support frame (2) is fixedly connected to the top of the apparatus body (1), and a first roller (3) is installed inside the support frame (2), characterized in that: The support frame (2) is rotatably connected to a rotating shaft (4); The rotating shaft (4) is externally connected to a moving mechanism (5), and a first scraper (6) is connected to one side of the moving mechanism (5). The moving mechanism (5) is used to drive the first scraper (6) to abut against the first roller shaft (3). The support frame (2) is internally connected to a limiting mechanism (7) for limiting the first scraper (6). The support frame (2) is externally connected to an opposing mechanism (8), and the opposing mechanism (8) is internally connected to two inclined plates (9) installed inside the support frame (2). The opposing mechanism (8) is used to drive the tops of the two inclined plates (9) to move closer to each other. The main body (1) of the device is equipped with a drive mechanism (10) for tilting the inclined plate (9).

2. The high-stability PE film continuous blow molding production apparatus according to claim 1, characterized in that: The first roller (3) is used to pull and wind up the film. The first scraper (6) contacts and abuts against the first roller (3) to clean the first roller (3). The two inclined plates (9) are combined to form a herringbone plate to assist in pulling the film. The inclined plate (9) is in the shape of a ladder.

3. The high-stability PE film continuous blow molding production apparatus according to claim 1, characterized in that: The moving mechanism (5) includes a bidirectional lead screw (501) fixedly connected to the outside of the rotating shaft (4). Two mirror-symmetrical sliders (502) are rotatably connected to the outside of the bidirectional lead screw (501). The top of each slider (502) is rotatably connected to a connecting rod (503) via a rotating shaft, which is also mirror-symmetrical. The other ends of the two connecting rods (503) are rotatably connected to the first scraper (6) via a rotating shaft. One end of the rotating shaft (4) passes through the support frame (2) and is equipped with a handle (504). The bottom of each slider (502) is fixedly connected to a limiting block (505). The support frame (2) is fixedly connected to a limiting shaft (506) that passes through the two limiting blocks (505).

4. The high-stability PE film continuous blow molding production apparatus according to claim 1, characterized in that: The limiting mechanism (7) includes two first brackets (701) that are fixedly connected to both sides of the inner wall of the support frame (2) and correspond one to one. Each of the two first brackets (701) has a fixed shaft (702) fixedly connected inside. Each of the front ends of the first scraper (6) has a set of sliding plates (703) fixedly connected to both sides. Each set has two sliding plates, and the two sets of sliding plates (703) are slidably connected to the two fixed shafts (702) respectively.

5. The high-stability PE film continuous blow molding production apparatus according to claim 1, characterized in that: The support frame (2) has two cylinders (704) installed on its top. The output ends of the two cylinders (704) are connected to a second roller shaft (705). The second roller shaft (705) cooperates with the first roller shaft (3). A second scraper (706) corresponding to the second roller shaft (705) is fixedly connected inside the support frame (2). A collection box (707) located below the second scraper (706) is fixedly connected inside the support frame (2).

6. The high-stability PE film continuous blow molding production apparatus according to claim 1, characterized in that: The opposing mechanism (8) includes two sliding shafts (801) fixedly connected to the top of the two inclined plates (9) respectively, and they correspond one to one. The outer walls of the support frame (2) are fixedly connected to the second brackets (802). The two second brackets (802) are each equipped with a motor (803). The output ends of the two motors (803) are fixedly connected to the gears (804) that are rotatably connected to the support frame (2). The two ends of the two sliding shafts (801) are fixedly connected to the racks (805). The two racks (805) on each side mesh with the gears (804) and are centrally symmetrical. The two sides of the support frame (2) are fixedly connected to a plurality of limiting blocks (806), and they are all slidably connected to the racks (805).

7. The high-stability PE film continuous blow molding production apparatus according to claim 1, characterized in that: The drive mechanism (10) includes two third brackets (1001) fixedly connected inside the main body (1) of the device. Each of the two third brackets (1001) is equipped with an electric push rod (1002). The output ends of the two electric push rods (1002) are fixedly connected to a moving plate (1003). The bottom of each of the two moving plates (1003) is rotatably connected to two inclined rods (1004) via a rotating shaft. The two inclined plates (9) at the bottom of each moving plate (1003) are rotatably connected to one side of the two inclined plates (9) via a rotating shaft.

8. The high-stability PE film continuous blow molding production apparatus according to claim 7, characterized in that: The main body (1) of the device has two straight shafts (1005) fixedly connected inside, and the two straight shafts (1005) pass through the two moving plates (1003) respectively.

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