Heat shrink film blowing machine
By designing and adjusting the roller structure and guidance bracket in the heat shrink film blowing machine, the problems of film cooling and guidance path in the prior art are solved, and the stability and uniformity of film tension adjustment and path guidance are achieved.
Patent Information
- Application Number
- CN202421841846.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing film blowing machine structure cannot effectively cool the film and cannot correctly guide the film to move along the correct path.
A heat shrink film blowing machine is designed, including adjusting the roller structure and guiding bracket. The adjustment roller structure adjusts the film tension through the downward pressing roller and the driving push rod, and guides the film path through the sliding carrier. The guide bracket flattens the cylindrical film through the guide roller and the connecting frame and guides it to run along a predetermined path.
Effectively adjust the film tension, ensure that the film runs along the correct path, reduce jitter and offset, and maintain the stability and uniformity of the film.
Smart Images
Figure CN222904844U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film blowing machines, in particular to a heat shrinkable film blowing machine. Background Art
[0002] Heat shrink film is a film material with heat shrinking properties, which is widely used in packaging, protection and labeling of various products. The basic principle of heat shrink film is that under heating conditions, the film material can shrink and tightly wrap around the surface of the object to provide protection and stability. However, the existing film blowing machine structure still has the problem of being unable to effectively cool the film and unable to correctly guide the film to move along the correct path.
[0003] Therefore, it is very necessary to invent a heat shrinkable film blowing machine. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a heat shrink film blowing machine to solve the problem that the existing film blowing machine structure still cannot effectively cool the film and cannot correctly guide the film to move along the correct path. A heat shrink film blowing machine includes a supporting base, a side bracket, a lower supporting roller, an adjustment roller structure, an extension plate, a guide roller and a guide bracket, wherein: the supporting base is fixedly installed in mid-air through a steel support frame, and the side brackets are fixedly installed at both ends of the surface of the supporting base, and the lower supporting roller is rotatably installed inside the two sets of side brackets through bearings; the adjustment roller structure is arranged above the side bracket, and the extension plate is fixedly installed at both ends of one side of the supporting base, and the guide roller is rotatably installed inside the extension plate; the guide bracket is fixedly installed below the supporting base.
[0005] The adjusting roller structure includes a connecting top plate, a sliding carrier, a lower pressure roller and a driving push rod, and the connecting top plate is fixedly installed on the top of the side bracket, and the sliding carrier is slidably installed inside the internal sliding grooves of the two groups of side brackets; the lower pressure roller is rotatably installed on the inner side of the two groups of sliding carriers, and the driving push rod is fixedly installed on the surface of the connecting top plate and connected to the sliding carrier.
[0006] The guide bracket includes a drooping connecting frame, a first guide frame, a second guide frame, a connecting frame and a guide roller, and the drooping connecting frame is fixedly installed below the supporting substrate, and the first guide frame is fixedly installed on the inner side of the drooping connecting frame; the second guide frame is installed on one side of the first guide frame through the connecting frame, and the guide roller is rotatably installed inside the first guide frame and the second guide frame.
[0007] The lower pressure roller inside the adjustment roller structure adopts a hollow stainless steel metal roller, and the lower pressure roller does not have the ability to actively rotate. The lower pressure roller can move in the vertical direction through the action of the driving push rod; the lower pressure roller can move closer to or away from the lower support roller, and has the following functions: ① Adjusting the tension of the film material: By driving the push rod to move the lower pressure roller in the vertical direction, close to and away from the lower support roller, the film material is compressed, and the tension of the film material in the production process can be adjusted to avoid the film material being too tight or too loose; ② Film material guidance: The lower pressure roller and the sliding carrier cooperate with each other to guide the direction of the film material to ensure that the film material runs along the correct path; ③ Stabilize the operation of the film material: The existence of the adjustment roller structure can effectively reduce the jitter and deviation caused by uneven tension during the operation of the film material, and maintain the stability of the film material operation.
[0008] The drooping connecting frame inside the guide bracket adopts a steel metal bracket, which can suspend the first guide frame and the second guide frame in the air; the top ends of the first guide frame and the second guide frame are inclined inward to form a trapezoid, which is narrow at the top and wide at the bottom; the guide rollers adopt a number of hollow metal rollers that cannot rotate actively; the first guide frame and the second guide frame are located directly above the heat shrink film extruder, and have the following functions: ① Flattening the cylindrical film: The first guide frame and the second guide frame in the guide bracket can effectively flatten the extruded cylindrical film to form a double-layer film through the cooperation of the guide rollers, which is convenient for subsequent storage; ② Guiding the film material path: Through the cooperation of the guide rollers and the connecting frame, the guide bracket can guide the flattened double-layer film to run along a predetermined path to avoid deviation or incorrect direction of the film material.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] 1. The setting of the adjusting roller structure of the utility model has the following functions: ① adjusting the tension of the film material: by driving the push rod to move the lower pressure roller in the vertical direction, close to and away from the lower support roller, the film material is pressed, and the tension of the film material in the production process can be adjusted to avoid the film material being too tight or too loose; ② film material guidance: the lower pressure roller and the sliding carrier cooperate with each other to guide the direction of the film material to ensure that the film material runs along the correct path; ③ stabilizing the operation of the film material: the existence of the adjusting roller structure can effectively reduce the jitter and deviation caused by uneven tension during the operation of the film material, and maintain the stability of the film material operation.
[0011] 2. The setting of the guide bracket of the utility model has the following functions: 1. Flattening the cylindrical film: the first guide bracket and the second guide bracket in the guide bracket can effectively flatten the extruded cylindrical film to form a double-layer film through the cooperation of the guide roller, which is convenient for subsequent storage; 2. Guiding the film material path: through the cooperation of the guide roller and the connecting frame, the guide bracket can guide the flattened double-layer film to run along a predetermined path to avoid deviation or incorrect direction of the film material. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model.
[0013] Figure 2 It is an enlarged view of point A of the present utility model.
[0014] Figure 3 It is an enlarged view of point B of the present utility model.
[0015] In the figure:
[0016] Support substrate 1, side bracket 2, lower support roller 3, adjustment roller structure 4, connecting top plate 41, sliding carrier 42, lower pressure roller 43, driving push rod 44, extension plate 5, guide roller 6, guide bracket 7, drooping connecting frame 71, first guide frame 72, second guide frame 73, connecting frame 74, guide roller 75. DETAILED DESCRIPTION
[0017] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0018] As attached Figure 1 To Attachment Figure 3 shown.
[0019] The utility model provides a heat shrink film blowing machine, comprising a supporting substrate 1, a side bracket 2, a lower supporting roller 3, an adjusting roller structure 4, an extension plate 5, a guide roller 6 and a guide bracket 7, wherein: the supporting substrate 1 is fixedly installed in mid-air through a steel supporting frame, and the side brackets 2 are fixedly installed at both ends of the surface of the supporting substrate 1, and the lower supporting roller 3 is rotatably installed inside the two groups of side brackets 2 through bearings; the adjusting roller structure 4 is arranged above the side bracket 2, and the extension plate 5 is fixedly installed at both ends of one side of the supporting substrate 1, and the guide roller 6 is rotatably installed inside the extension plate 5; the guide bracket 7 is fixedly installed below the supporting substrate 1.
[0020] The adjusting roller structure 4 includes a connecting top plate 41, a sliding carrier 42, a lower pressure roller 43 and a driving push rod 44, and the connecting top plate 41 is fixedly installed on the top of the side bracket 2, and the sliding carrier 42 is slidably installed inside the internal slide grooves of the two groups of side brackets 2; the lower pressure roller 43 is rotatably installed on the inner side of the two groups of sliding carriers 42, and the driving push rod 44 is fixedly installed on the surface of the connecting top plate 41 and connected to the sliding carrier 42.
[0021] The guide bracket 7 includes a drooping connecting frame 71, a first guide frame 72, a second guide frame 73, a connecting frame 74 and a guide roller 75, and the drooping connecting frame 71 is fixedly installed below the supporting substrate 1, and the first guide frame 72 is fixedly installed on the inner side of the drooping connecting frame 71; the second guide frame 73 is installed on one side of the first guide frame 72 through the connecting frame 74, and the guide roller 75 is rotatably installed inside the first guide frame 72 and the second guide frame 73.
[0022] Heat shrink film blowing machine is a kind of equipment used to produce heat shrink film. Its working principle includes heating and melting of plastic raw materials, extrusion molding, blowing and stretching, cooling and shaping, and winding of finished products. The following is a detailed description of its working principle:
[0023] 1. Heating and melting plastic raw materials
[0024] First, the plastic granular raw materials are added into the hopper of the film blowing machine. The raw materials are conveyed into the heated extruder by the screw, and in the heating zone of the extruder, the plastic raw materials are heated to a molten state.
[0025] 2. Extrusion molding
[0026] The molten plastic is extruded through the screw of the extruder to form a continuous plastic film tube from the extrusion die. This step is the key to the entire film blowing process and directly affects the thickness and uniformity of the film.
[0027] 3. Inflation and stretching
[0028] The extruded plastic film tube is initially cooled by a cooling ring, and then air is blown into the film tube through the blowing hole in the center of the die head to inflate it into a cylindrical film of a certain diameter. During the blowing process, the film is stretched longitudinally and transversely to form the required film thickness and strength.
[0029] 4. Cooling and shaping
[0030] The inflated tubular film continues to rise and is guided and cooled to shape by the guide bracket 7. The guide bracket 7 includes a drooping connecting frame 71, a first guide frame 72, a second guide frame 73, a connecting frame 74 and a guide roller 75. The function of the guide bracket 7 is to flatten the tubular film to form a double-layer film and maintain the stable operation of the film material.
[0031] Flattening the cylindrical film: The cylindrical film passes through the guide roller 75 between the first guide frame 72 and the second guide frame 73, and is gradually flattened to form a double-layer film.
[0032] Guiding and supporting: The guiding roller 75 provides support and guiding to ensure that the film material runs along a predetermined path and to prevent the film material from deviating or running in an incorrect direction.
[0033] Maintaining tension and stability: The guide bracket 7 maintains the appropriate tension and stability of the film material to prevent the film material from tangling, overlapping or shaking during operation.
[0034] 5. Adjust the roller structure
[0035] The adjusting roller structure 4 is installed above the side bracket 2 to adjust the tension and thickness of the film material to ensure the uniformity and quality of the film material. The adjusting roller structure 4 includes a connecting top plate 41, a sliding carrier 42, a lower pressure roller 43 and a driving push rod 44.
[0036] Adjusting the tension: The lower pressure roller 43 moves in the vertical direction through the action of the driving push rod 44 to adjust the tension of the film material to avoid being too tight or too loose.
[0037] Controlling thickness: The precise position adjustment of the lower pressing roller 43 can control the thickness of the film material to meet the expected requirements.
[0038] 6. Roll up the finished product
[0039] After cooling, shaping and adjustment, the double-layer film passes through the lower support roller 3 and the guide roller 6 on the extension plate 5, and is finally rolled into a finished product. The rolling process ensures the flatness and uniformity of the film and facilitates subsequent processing and packaging.
[0040] Through the above steps, the heat shrink film blowing machine can continuously and efficiently produce high-quality heat shrink film, which is widely used in packaging and other industrial fields.
[0041] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.
Claims
1. A heat shrinkable film blowing machine, characterized in that: The invention comprises a supporting substrate (1), a side bracket (2), a lower supporting roller (3), an adjusting roller structure (4), an extension plate (5), a guide roller (6) and a guide bracket (7), wherein: the supporting substrate (1) is fixedly installed in mid-air via a steel supporting frame, and the side brackets (2) are fixedly installed at both ends of the surface of the supporting substrate (1), and the lower supporting roller (3) is rotatably installed inside two groups of side brackets (2) via bearings; the adjusting roller structure (4) is arranged above the side brackets (2), and the extension plate (5) is fixedly installed at both ends of one side of the supporting substrate (1), and the guide roller (6) is rotatably installed inside the extension plate (5); and the guide bracket (7) is fixedly installed below the supporting substrate (1).
2. A heat shrinkable film blowing machine according to claim 1, characterized in that: The adjusting roller structure (4) comprises a connecting top plate (41), a sliding carrier (42), a lower pressure roller (43) and a driving push rod (44), wherein the connecting top plate (41) is fixedly mounted on the top of the side bracket (2), and the sliding carrier (42) is slidably mounted inside the internal slide grooves of the two groups of side brackets (2); the lower pressure roller (43) is rotatably mounted on the inner side of the two groups of sliding carriers (42), and the driving push rod (44) is fixedly mounted on the surface of the connecting top plate (41) and connected to the sliding carrier (42).
3. A heat shrinkable film blowing machine according to claim 1, characterized in that: The guide bracket (7) comprises a drooping connecting frame (71), a first guide frame (72), a second guide frame (73), a connecting frame (74) and a guide roller (75), wherein the drooping connecting frame (71) is fixedly mounted below the supporting substrate (1), and the first guide frame (72) is fixedly mounted on the inner side of the drooping connecting frame (71); the second guide frame (73) is mounted on one side of the first guide frame (72) through the connecting frame (74), and the guide roller (75) is rotatably mounted inside the first guide frame (72) and the second guide frame (73).
4. A heat shrinkable film blowing machine as claimed in claim 2, characterized in that: The lower pressure roller (43) inside the adjustment roller structure (4) is a hollow stainless steel metal roller, and the lower pressure roller (43) does not have the ability to actively rotate. The lower pressure roller (43) can move in the vertical direction through the action of the driving push rod (44); the lower pressure roller (43) can move closer to or away from the lower support roller (3).
5. A heat shrinkable film blowing machine as claimed in claim 3, characterized in that: The drooping connecting frame (71) inside the guide bracket (7) is a steel metal bracket, which can suspend the first guide frame (72) and the second guide frame (73) in the air; the top ends of the first guide frame (72) and the second guide frame (73) are inclined inward to form a trapezoid, which is narrow at the top and wide at the bottom; the guide roller (75) is a plurality of hollow metal rollers that cannot rotate actively; the first guide frame (72) and the second guide frame (73) are located directly above the heat shrink film extruder.