CN118238336A - Calender for PVC film production capable of improving thickness uniformity - Google Patents
Calender for PVC film production capable of improving thickness uniformity Download PDFInfo
- Publication number
- CN118238336A CN118238336A CN202410140735.8A CN202410140735A CN118238336A CN 118238336 A CN118238336 A CN 118238336A CN 202410140735 A CN202410140735 A CN 202410140735A CN 118238336 A CN118238336 A CN 118238336A
- Authority
- CN
- China
- Prior art keywords
- calender
- roller
- pvc film
- thickness uniformity
- movable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims description 11
- 238000009966 trimming Methods 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims 7
- 229920000915 polyvinyl chloride Polymers 0.000 description 35
- 239000004800 polyvinyl chloride Substances 0.000 description 35
- 239000000463 material Substances 0.000 description 23
- 238000005520 cutting process Methods 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/02—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
- B26D1/03—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members
- B26D1/035—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3405—Feeding the material to the mould or the compression means using carrying means
- B29C2043/3427—Feeding the material to the mould or the compression means using carrying means hopper, vessel, chute, tube, conveying screw, for material in discrete form, e.g. particles or powder or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a calender for producing a PVC film for improving thickness uniformity, which belongs to the technical field of film calenders and comprises a step-by-step forming mechanism, wherein the step-by-step forming mechanism comprises two bottom steel frames which are distributed in parallel, two support frames are arranged on the upper sides of the two bottom steel frames together, three fixed forming rollers are arranged between the two support frames at equal intervals in a linear manner, a movable forming roller is arranged on one side of the movable forming roller, which is close to each fixed forming roller, and the distance between the movable forming roller and the corresponding fixed forming roller is gradually reduced from top to bottom.
Description
Technical Field
The invention mainly relates to the technical field of film calenders, in particular to a calender for producing PVC film, which improves thickness uniformity.
Background
The PVC film is mainly composed of polyvinyl chloride, other components are added to enhance heat resistance, toughness, ductility and the like, the uppermost layer of the surface film is paint, the middle main component is polyvinyl chloride, the lowest layer is a back-coating adhesive, the PVC film is a synthetic material which is popular and widely used in the world today, the global use amount of the PVC film is high in the second of various synthetic materials, and PVC is the most suitable material in the materials capable of producing the three-dimensional surface film.
In the process of processing a PVC film, a calender is required to be used for processing, the calender is formed by two or more rollers, the rollers are arranged according to a certain form, rubber or plastic is pressed and spread into films with certain thickness and surface shape at a certain temperature, the calender can be divided into two-roller, three-roller, four-roller and five-roller calenders and the like according to the number of the rollers, the calender mainly comprises rollers, a frame, a roller spacing adjusting device, a roller temperature adjusting device, a transmission device, a lubricating system, a control system and the like, in the existing film calender, in the process of processing the film, a forming roller can extrude a molten PVC mixture and enable the molten PVC mixture to extend to form a film with certain thickness, because PVC materials are spread towards two sides under the mutual extrusion action between natural gravity and the forming roller, the time of directly pressing the PVC materials into films is short under the influence of the temperature of the PVC materials and the falling speed of the PVC materials, the PVC materials can not be well spread in a short time, the PVC materials can sometimes cause that the thickness of the middle of the PVC mixture is larger than the thickness of the two sides, the thickness of the PVC mixture is not uniform, the thickness of the films can cause the thickness of the two sides is more than the thickness of the edges of the PVC mixture, the films are different, the films are formed, the difference is poor, and the film quality is caused, and the film quality is poor, and the film quality is poor is caused.
Disclosure of Invention
The technical scheme of the invention aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly mainly provides a calender for producing a PVC film, which is used for solving the technical problem that the prior film calender provided in the prior art is used for directly pressurizing a PVC material, can not deform and spread the material well in a short time and is easy to cause uneven thickness.
The technical scheme adopted for solving the technical problems is as follows:
The utility model provides an improve calender for PVC film production of thickness degree of consistency, includes forming mechanism step by step, forming mechanism step by step includes two parallel distribution's bottom steelframe, two the upside of bottom steelframe is provided with two support frames jointly, and two support frame parallel distribution, two equidistant linearity is provided with three between the support frame and decides the forming roller, is close to every it all is provided with movable forming roller to decide forming roller one side, and movable forming roller reduces gradually with the distance from the top down between the corresponding fixed forming roller, two adjustable trimming mechanism is installed through the bolt to the homonymy of support frame.
Preferably, two belt pulleys are arranged on the movable forming rollers positioned in the middle of the three movable forming rollers, one belt pulley is arranged on the remaining two movable forming rollers, and two non-coaxial adjacent belt pulleys are connected with each other through a belt.
Preferably, the transition roller is connected between the two support frames in a common rotation mode, a collecting disc is arranged below the transition roller, and side edges of the collecting disc are clamped in grooves of the two support frames.
Preferably, the upper side of each supporting frame is provided with symmetrically distributed brackets, and the four brackets are provided with feed hoppers together.
Preferably, the upper side of bottom steelframe is provided with the assembly case, the upside of assembly case is provided with first motor, the output of first motor is connected with corresponding movable forming roller one end.
Preferably, the adjustable trimming mechanism comprises two side frames, a backing plate is arranged between the two side frames, a supporting table is arranged above the backing plate, two synchronous operation cylinders are arranged on the supporting table, the output ends of the two cylinders are jointly provided with a movable frame, one end of the movable frame is provided with a second motor, the output end of the second motor is provided with a positive and negative double-threaded screw rod, nut seats are arranged in different threaded intervals of the positive and negative double-threaded screw rod, each nut seat is provided with a connecting sheet, and a trimming knife is arranged on the connecting sheet.
Preferably, a positioning sleeve is arranged on the upper side of each side frame, the two positioning sleeves are connected with a first conveying roller in a rotating mode, a second conveying roller is arranged below the first conveying roller, and the second conveying roller is connected with the side frames in a rotating mode.
Preferably, one of the side frames is provided with a mounting plate, the mounting plate is provided with a third motor, and the output end of the third motor is connected with one end of the second conveying roller.
Preferably, the lateral brackets and the air cooler on the lateral brackets are arranged on the two side frames together.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, through the mutual matching of the bottom steel frame, the support frame, the brackets, the transition roller, the fixed forming roller, the movable forming roller, the belt pulley, the feeding hopper, the assembly box and the first motor, the distance between the movable forming roller and the corresponding fixed forming roller is gradually reduced from top to bottom, so that the gradual extrusion forming of PVC materials between the forming rollers is realized, the traditional one-time extrusion forming is avoided, the time of pressurizing is prolonged, the time of enough deformation and extension of the PVC materials is reached, the PVC materials are uniformly extended into films, the condition that the intermediate thickness is larger than the thickness of the edges at two sides due to too high extrusion speed and insufficient deformation time of the PVC materials is effectively avoided, the thickness of the whole film is uneven, the thickness of the product is more uniform, the quality of the product is improved, the bubbles are reduced to a certain extent, and the quality of the film product is further improved.
According to the invention, the support frame, the transition roller, the fixed forming roller, the movable forming roller, the belt pulley and the first motor are arranged, so that the PVC material is pressurized step by step, the material distribution is more uniform, the difference between the wave crest and the wave trough in the film edge wave structure can be well reduced to a certain extent, the raised area at the wave crest position of the edge of the cut film is reduced, the waste of the material is reduced, and the quality of the film is improved.
According to the invention, through the mutual matching among the side frames, the base plate, the supporting table, the air cylinder, the second motor, the connecting sheet, the movable frame and the cutting knife, the irregular wave structure formed by the extrusion of the edges of the film is cut, the distance between the two cutting knives can be adjusted under the action of the positive and negative double-thread screw rods and the nut seat, the two sides of the PVC film can be synchronously cut according to the requirement, the requirement of customers on different widths of the film is met, and the speed of cutting waste materials on the edges of the two sides is increased.
The invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a progressive forming mechanism according to the present invention;
FIG. 3 is an exploded view of the adjustable trimming mechanism of the present invention;
FIG. 4 is an enlarged schematic view of the area of FIG. 3A according to the present invention.
Description of the drawings: 1. a step-by-step forming mechanism; 11. a bottom steel frame; 12. a support frame; 121. a bracket; 122. a transition roller; 13. a forming roller is fixed; 14. a movable forming roller; 15. a belt pulley; 16. a feed hopper; 17. assembling a box; 18. a first motor; 19. a collection tray; 2. an adjustable trimming mechanism; 21. a side frame; 211. a mounting plate; 22. a backing plate; 23. a support table; 24. a cylinder; 25. a moving rack; 26. a front and back double-thread screw rod; 261. a nut seat; 262. a connecting sheet; 263. a cutting knife; 27. a second motor; 28. a transverse bracket; 281. an air cooler; 29. a positioning sleeve; 291. a first conveying roller; 292. a second conveying roller; 3. and a third motor.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will be rendered by reference to the appended drawings, in which several embodiments of the invention are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this invention belongs, and the knowledge of terms used in the description of this invention herein for the purpose of describing particular embodiments is not intended to limit the invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, a calender for producing a PVC film for improving thickness uniformity includes a step-by-step forming mechanism 1, the step-by-step forming mechanism 1 includes two bottom steel frames 11 distributed in parallel, two support frames 12 are disposed on the upper sides of the bottom steel frames 11, the two support frames 12 are distributed in parallel, three fixed forming rollers 13 are disposed between the two support frames 12 at equal intervals, a movable forming roller 14 is disposed on one side close to each fixed forming roller 13, the distance between the movable forming roller 14 and the corresponding fixed forming roller 13 is gradually reduced from top to bottom, and an adjustable trimming mechanism 2 is mounted on the same side of the two support frames 12 through bolts.
The structure realizes the gradual extrusion molding of the PVC material between the molding rollers through the mutual cooperation between the step-by-step molding mechanism 1 and the adjustable edge cutting mechanism 2, prolongs the pressurizing time, ensures that the PVC material is uniformly stretched into a film for a sufficient deformation expansion time, effectively avoids the condition that the thickness of the middle part is larger than that of the edges of the two sides, causes uneven thickness, and reduces the difference value between the wave crest and the wave trough in the wave structure of the edge of the film to a certain extent, thereby reducing the quantity of the edge of the cut film, reducing waste, improving the quality of the film, and having stable structure and convenient operation.
The method comprises the following steps of firstly opening a first motor 18, then driving three movable forming rollers 14 to synchronously rotate under the action of a belt pulley 15 and a belt, then placing molten PVC material into a feed hopper 16, then enabling the PVC material to enter between a fixed forming roller 13 and the movable forming roller 14, gradually reducing the distance between the movable forming roller 14 and the corresponding fixed forming roller 13 from top to bottom, pressurizing the PVC material step by step, then enabling an extruded film to pass through a transition roller 122, then enabling the film to move to the lower side of an air cooler 281 for cooling, simultaneously starting a third motor 3, driving a second conveying roller 292 to rotate, driving the film to move, enabling an air cylinder 24 to push a movable frame 25 to move downwards when the film moves to the upper side of a backing plate 22, enabling a cutting knife 263 to contact the film for cutting, and opening a second motor 27 according to requirements, driving a positive and negative double-thread screw 26 to rotate, so as to change the distance between the two cutting knives 263 through a nut seat 261, and adjusting and controlling the width of the film.
In the second embodiment, please refer to fig. 1 and 2, two belt pulleys 15 are disposed on the movable forming rollers 14 located at the middle position of the movable forming rollers 14, one belt pulley 15 is disposed on the remaining two movable forming rollers 14, two non-coaxial adjacent belt pulleys 15 are all connected with each other through a belt, an assembling box 17 is disposed on the upper side of the bottom steel frame 11, a first motor 18 is disposed on the upper side of the assembling box 17, an output end of the first motor 18 is connected with one end of the corresponding movable forming roller 14, through the cooperation between the first motor 18 and the belt pulley 15, synchronous driving of the three movable forming rollers 14 is achieved, a transition roller 122 is connected between the two support frames 12 in a co-rotating manner, a supporting point is provided for an extruded film through the transition roller 122, the film is transited into the adjustable edge cutting mechanism 2, a collecting disc 19 is disposed below the transition roller 122, side edges of the collecting disc 19 are clamped in grooves of the two support frames 12, through the collecting disc 19, the two support frames 12 are symmetrically arranged in the extrusion forming process, and the material is distributed on the four support frames 12 through the four support frames 121, and the feeding hopper 121 is arranged.
In a third embodiment, please refer to fig. 3 and 4, the adjustable trimming mechanism 2 includes two side frames 21, two tie plates 22 are disposed between the side frames 21, a supporting table 23 is disposed above the tie plates 22, two cylinders 24 running synchronously are disposed on the supporting table 23, the output ends of the two cylinders 24 are jointly disposed with a moving frame 25, one end of the moving frame 25 is provided with a second motor 27, the output end of the second motor 27 is provided with a front and back double-threaded screw rod 26, nut seats 261 are disposed in different threaded intervals of the front and back double-threaded screw rod 26, each nut seat 261 is provided with a connecting sheet 262, cutting knives 263 are disposed on the connecting sheet 262, the distance between the two cutting knives 263 is regulated and controlled by the second motor 27, the front and back double-threaded screw rod 26, the nut seats 261 and the connecting sheet 262, the upper sides of the two cylinders 24 are jointly rotated and connected with a first conveying roller 291, the first conveying roller 291 is disposed with the second conveying roller 292, the second conveying roller 292 is rotatably connected with the second conveying roller 292, and the second conveying roller 292 is rotatably connected with the third film mounting plate 28, and the second film is transversely connected with the third conveying roller 292, and the film is transversely connected with the second conveying roller 292, and the film is transversely connected with the third conveying roller and the film mounting plate is mounted on the film mounting plate and is 3.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the embodiments described above, but is intended to be within the scope of the invention, as long as such insubstantial modifications are made by the method concepts and technical solutions of the invention, or the concepts and technical solutions of the invention are applied directly to other occasions without any modifications.
Claims (9)
1. The utility model provides an improve calender for PVC film production of thickness degree of consistency, includes shaping mechanism (1) step by step, shaping mechanism (1) step by step includes two parallel distribution's bottom steelframe (11), two the upside of bottom steelframe (11) is provided with two support frames (12) jointly, and two support frames (12) parallel distribution, its characterized in that, two equidistant linearity is provided with three between support frames (12) decides shaping roller (13), is close to every decide shaping roller (13) one side all to be provided with movable shaping roller (14), and distance from the top down between movable shaping roller (14) and the corresponding fixed shaping roller (13) reduces gradually, two adjustable trimming mechanism (2) are installed through the bolt to the homonymy of support frames (12).
2. The calender for producing a PVC film with improved thickness uniformity according to claim 1, wherein two belt pulleys (15) are provided on the movable forming rollers (14) positioned at the middle position of the three movable forming rollers (14), one belt pulley (15) is provided on the remaining two movable forming rollers (14), and two adjacent belt pulleys (15) which are not coaxial are connected with each other by a belt.
3. The calender for producing the PVC film with improved thickness uniformity according to claim 1, wherein a transition roller (122) is connected between the two supporting frames (12) in a rotating mode, a collecting disc (19) is arranged below the transition roller (122), and side edges of the collecting disc (19) are clamped in grooves of the two supporting frames (12).
4. A calender for producing PVC film with improved thickness uniformity according to claim 3, wherein the upper side of each supporting frame (12) is provided with symmetrically distributed brackets (121), and four brackets (121) are provided with feed hoppers (16) together.
5. The calender for producing the PVC film with improved thickness uniformity according to claim 1, wherein an assembly box (17) is arranged on the upper side of the bottom steel frame (11), a first motor (18) is arranged on the upper side of the assembly box (17), and the output end of the first motor (18) is connected with one end of a corresponding movable forming roller (14).
6. The calender for producing the PVC film with improved thickness uniformity according to claim 1, wherein the adjustable trimming mechanism (2) comprises two side frames (21), a backing plate (22) is arranged between the two side frames (21), a supporting table (23) is arranged above the backing plate (22), two synchronously-operated cylinders (24) are arranged on the supporting table (23), a movable frame (25) is jointly arranged at the output ends of the two cylinders (24), a second motor (27) is arranged at one end of the movable frame (25), a positive and negative double-threaded screw rod (26) is arranged at the output end of the second motor (27), nut seats (261) are arranged in different threaded intervals of the positive and negative double-threaded screw rod (26), connecting pieces (262) are arranged on each nut seat, and trimming cutters (263) are arranged on the connecting pieces (262).
7. The calender for producing the PVC film with improved thickness uniformity according to claim 6, wherein a positioning sleeve (29) is arranged on the upper side of each side frame (21), a first conveying roller (291) is connected with the two positioning sleeves (29) in a co-rotation mode, a second conveying roller (292) is arranged below the first conveying roller (291), and the second conveying roller (292) is connected with the side frames (21) in a rotation mode.
8. The calender for producing the PVC film with improved thickness uniformity according to claim 7, wherein a mounting plate (211) is arranged on one side frame (21), a third motor (3) is arranged on the mounting plate (211), and the output end of the third motor (3) is connected with one end of a second conveying roller (292).
9. Calender for PVC film production with improved thickness uniformity according to claim 8, characterized in that both side frames (21) are jointly erected with transverse brackets (28) and air coolers (281) on the transverse brackets (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410140735.8A CN118238336A (en) | 2024-02-01 | 2024-02-01 | Calender for PVC film production capable of improving thickness uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410140735.8A CN118238336A (en) | 2024-02-01 | 2024-02-01 | Calender for PVC film production capable of improving thickness uniformity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118238336A true CN118238336A (en) | 2024-06-25 |
Family
ID=91557313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410140735.8A Pending CN118238336A (en) | 2024-02-01 | 2024-02-01 | Calender for PVC film production capable of improving thickness uniformity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118238336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119635919A (en) * | 2025-02-18 | 2025-03-18 | 江苏潭石半导体科技有限公司 | A thermal conductive silicone calender and its calendering trimming mechanism |
-
2024
- 2024-02-01 CN CN202410140735.8A patent/CN118238336A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119635919A (en) * | 2025-02-18 | 2025-03-18 | 江苏潭石半导体科技有限公司 | A thermal conductive silicone calender and its calendering trimming mechanism |
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