CN112065975A - Film transverse stretching clamp - Google Patents
Film transverse stretching clamp Download PDFInfo
- Publication number
- CN112065975A CN112065975A CN202010850226.6A CN202010850226A CN112065975A CN 112065975 A CN112065975 A CN 112065975A CN 202010850226 A CN202010850226 A CN 202010850226A CN 112065975 A CN112065975 A CN 112065975A
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- CN
- China
- Prior art keywords
- base
- chain
- sleeve
- guide wheel
- film
- 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
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 239000004519 grease Substances 0.000 abstract description 12
- 230000001050 lubricating effect Effects 0.000 abstract description 12
- 239000000843 powder Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/05—Features relating to lubrication or cooling or heating of chains
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/20—Edge clamps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention discloses a film transverse stretching clamp which comprises a chain and a plurality of clamping devices arranged on the chain, wherein each clamping device comprises a base and a clamping handle rotatably arranged on the base; the base is in rolling connection with the outer side face of the guide rail through a first guide wheel, the base is in rolling connection with the inner side face of the guide rail through a second guide wheel, and the base is in rolling connection with the top face of the guide rail through a third guide wheel; the chain comprises a plurality of groups of inner chain links and outer chain links, and the inner chain links are connected with the outer chain links through mandrels, sleeves and rollers; a first oil-free self-lubricating bearing is arranged between the roller and the sleeve; a second oilless self-lubricating bearing is arranged between the sleeve and the mandrel; the base is fixedly connected with an outer chain link of the chain through a bolt. The chain and the clamping device do not need to be lubricated by using a large amount of lubricating grease; the technical problem that the lubricating grease can be carbonized at high temperature and powder can be adhered to the film is solved fundamentally.
Description
Technical Field
The invention relates to the technical field of film stretching production lines, in particular to a film transverse stretching clamp.
Background
In the production flow of BOPP films (biaxially oriented polypropylene films), the films need to be transversely stretched after being longitudinally stretched, a traditional clamp consists of a chain and clamping devices arranged on the chain, and the clamping devices clamp the films and then move forward and transversely stretch along a guide rail under the traction of the chain; in order to reduce the transmission wear of each chain link on the chain and ensure that the chain links work smoothly and stably, a large amount of lubricating grease needs to be coated on the chain so as to reduce the transmission friction among the chain links; in addition, the clamp adopts the sliding block to be connected with the guide rail in a sliding way, so that a large amount of lubricating grease needs to be coated on the guide rail, the friction loss between the sliding block and the guide rail is reduced, and the clamp is arranged in a film transverse pulling machine box in a long-term high-temperature state, so that the lubricating grease can be carbonized in the high-temperature state, powder can be formed to be adhered to the film, and the product quality is influenced.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a film transverse stretching clamp, which aims to improve a chain and a clamp, so that the chain and the clamp do not need to be lubricated by adding lubricating grease, and the technical problem that the lubricating grease can be carbonized in a high-temperature state to influence the product quality is solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a film transverse stretching clamp comprises a chain and a plurality of clamping devices arranged on the chain, wherein each clamping device comprises a base and a clamping handle rotatably arranged on the base; the base is in rolling connection with the outer side face of the guide rail through a first guide wheel, the base is in rolling connection with the inner side face of the guide rail through a second guide wheel, and the base is in rolling connection with the top face of the guide rail through a third guide wheel; the center lines of the first guide wheel and the second guide wheel are in the direction of a plumb line; the central line direction of the third guide wheel is the horizontal direction; the chain comprises a plurality of groups of inner chain links and outer chain links, and the inner chain links are connected with the outer chain links through mandrels, sleeves and rollers; the inner chain link is connected with the sleeve, and the outer chain link is connected with the mandrel; the sleeve is sleeved on the periphery of the mandrel, and the roller is sleeved on the periphery of the sleeve; a first oil-free self-lubricating bearing is arranged between the roller and the sleeve; a second oilless self-lubricating bearing is arranged between the sleeve and the mandrel; the chain passes through the base, and the base is fixedly connected with the outer chain link of the chain through the bolt.
The middle part of the clamping handle is rotatably arranged on the base through a swinging shaft, the tail part of the clamping handle faces upwards, and the head part of the clamping handle and the clamping surface of the base clamp the film together.
A spring sleeve is arranged between the middle part of the clamping handle and the base, a spring is arranged in the spring sleeve, one end of the spring sleeve is provided with a cylindrical hole, and the other end of the spring sleeve is provided with a waist-shaped hole; one end of the spring is connected with the clamping handle through the first cylindrical pin, the first cylindrical pin is inserted into the cylindrical hole, the other end of the spring is connected with the base through the second cylindrical pin, and the second cylindrical pin is inserted into the kidney-shaped hole.
The first guide wheels comprise two first upper side guide wheels which are distributed in the front and back direction and two first lower side guide wheels which correspond to the first upper side guide wheels; the second guide wheel comprises two second upper side guide wheels which are distributed in the front and back direction and two second lower side guide wheels which correspond to the second upper side guide wheels.
The second upper side guide wheel is arranged right above the chain, and the second lower side guide wheel is arranged right below the chain.
And the first guide wheel, the second guide wheel and the third guide wheel are connected with the base through bolts.
Each group of the inner chain links comprises a pair of inner chain plates which are arranged in parallel, and the two inner chain plates are connected with the sleeve; each group of the outer chain links comprises a pair of outer chain plates which are arranged in parallel, and the two outer chain plates are connected with the core shaft; and the middle part of each outer chain plate is provided with a connecting hole for the bolt to pass through.
The base comprises an upper support and a base, a counter bore is formed in the upper support, a positioning hole is formed in the base, the bolt comprises a limiting head, a pin shaft section, a positioning section and a thread fixing section which are connected in sequence, the bolt sequentially penetrates through the counter bore, two connecting holes and the positioning hole from top to bottom, the limiting head is arranged in the counter bore, the positioning section is arranged in the positioning hole, and the thread fixing section penetrates through the positioning hole and is screwed into a nut.
And two ends of the sleeve are provided with check rings, and the check rings are positioned between the outer chain plate and the sleeve.
And a wear-resistant pad is arranged between the retainer ring and the outer chain plate.
Has the advantages that:
compared with the prior art, the film transverse stretching clamp provided by the invention is correspondingly pressed on the inner side surface, the outer side surface and the top surface of the guide rail through the first guide wheel, the second guide wheel and the third guide wheel to realize the positioning of the clamp, the first guide wheel, the second guide wheel and the third guide wheel roll forward along the guide direction of the guide rail, and the clamp moves stably; and because the friction coefficient of rolling friction is less than the friction coefficient of sliding friction for the frictional force between the binding clasp of high-speed motion and the guide rail reduces greatly, so guide rail and guide pulley can also keep good operating condition under the oil-free lubricated operating mode, need not to adopt a large amount of lubricating grease to lubricate. In addition, the first self-lubricating bearing greatly reduces friction and abrasion between the roller and the sleeve, and ensures the activity flexibility and the service life of the roller; and, be connected through the second self-lubricating bearing between sleeve and the dabber, further reduce the friction loss between sleeve and the dabber for the transmission of chain is more steady, has prolonged the life of chain. The first self-lubricating bearing and the second self-lubricating bearing do not need oil supply for lubrication, so that the wear resistance is excellent, and a good working state can be kept under a high-temperature working condition, so that the chain can work under an oil-free lubrication working condition, and the chain does not need to be lubricated by using a large amount of lubricating grease; the technical problem that the lubricating grease can be carbonized at high temperature and powder can be adhered to the film is solved fundamentally.
Drawings
Fig. 1 is a schematic structural diagram of a film transverse stretching clamp provided by the invention.
FIG. 2 is a schematic longitudinal sectional view showing a closed state of a clamp in the film stretching jig according to the present invention.
FIG. 3 is a schematic longitudinal sectional view showing an opened state of a clamp in the film stretching jig according to the present invention.
FIG. 4 is a schematic view of a chain structure in the film transverse stretching clamp provided by the present invention.
Fig. 5 is a cross-sectional view taken along line C-C of fig. 4.
FIG. 6 is a top view of a chain in the film transverse stretching jig provided by the present invention.
Description of the main element symbols: 1-chain, 2-clamp, 21-base, 22-clamping handle, 31-first guide wheel, 32-second guide wheel, 33-third guide wheel, 4-guide rail, 11-inner chain link, 12-outer chain link, 13-mandrel, 14-sleeve, 15-roller, 16-first oilless self-lubricating bearing, 17-second oilless self-lubricating bearing, 5-bolt, 23-swinging shaft, 61-spring sleeve, 62-cylindrical hole, 63-kidney-shaped hole, 64-first cylindrical pin, 65-second cylindrical pin, 10-connecting hole, 18-check ring, 19-wear pad, 311-first upper guide wheel, 312-first lower side guide wheel, 321-second upper side guide wheel, 322-second lower side guide wheel, 111-inner chain plate, 121-outer chain plates, 211-upper brackets, 212-bases, 213-counter bores, 214-positioning holes, 51-limiting heads, 52-pin shaft sections, 53-positioning sections and 54-thread fixing sections.
Detailed Description
The invention provides a film transverse stretching clamp, which is further described in detail below by referring to the attached drawings and embodiments in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
Referring to fig. 1-6, the present invention provides a film transverse stretching clamp, wherein the inner side of the guide rail faces the end surface of the clamping handle, and the outer side and the inner side of the guide rail face opposite directions.
The film transverse stretching clamp comprises a chain 1 and a plurality of clamping devices 2 arranged on the chain 1, wherein each clamping device 2 comprises a base 21 and a clamping handle 22 rotatably arranged on the base 21; the base 21 is in rolling connection with the outer side surface of the guide rail 4 through a first guide wheel 31, the base 21 is in rolling connection with the inner side surface of the guide rail 4 through a second guide wheel 32, and the base 21 is in rolling connection with the top surface of the guide rail 4 through a third guide wheel 33; the central lines of the first guide wheel 31 and the second guide wheel 32 are in the direction of a plumb line; the central line direction of the third guide wheel 33 is the horizontal direction; the chain 1 comprises a plurality of groups of inner chain links 11 and outer chain links 12, wherein the inner chain links 11 are connected with the outer chain links 12 through mandrels 13, sleeves 14 and rollers 15; the inner chain link 11 is connected with a sleeve 14, and the outer chain link 12 is connected with a mandrel 13; the sleeve 14 is sleeved on the periphery of the mandrel 13, and the roller 15 is sleeved on the periphery of the sleeve 14; a first oil-free self-lubricating bearing 16 is arranged between the roller 15 and the sleeve 14; a second oilless self-lubricating bearing 17 is arranged between the sleeve 14 and the mandrel 13; the chain 1 passes through the base 21, and the base 21 is fixedly connected with the outer chain link 12 of the chain 1 through the bolt 5.
In actual assembly, the chain 1 is formed by alternately connecting inner chain links 11 and outer chain links 12 section by section, each clamping device 2 corresponds to one group of outer chain links 12, and the clamping devices 2 are in transmission connection with the chain 1 through bolts 5; the rollers 15 on the chain 1 contact the sprockets, thereby driving the chain 1 in motion. After the film is clamped by the clamping device, the chain 1 pulls the clamping device 2 to advance, and the film is transversely stretched under the guidance of the guide rail 4.
Compared with the prior art, the film transverse stretching clamp provided by the invention is correspondingly pressed on the inner side surface, the outer side surface and the top surface of the guide rail 4 through the first guide wheel 31, the second guide wheel 32 and the third guide wheel 33 to realize the positioning of the clamp, and the first guide wheel 31, the second guide wheel 32 and the third guide wheel 33 roll along the guide direction of the guide rail 4 to move forwards, so that the clamp 2 moves stably; as is known, the friction coefficient of rolling friction is smaller than that of sliding friction, so that the friction force between the clamping device 2 moving at high speed and the guide rail 4 is greatly reduced, the contact surface of the guide rail 4 is less worn, and the guide rail 4 and a guide wheel can also keep a good working state under the working condition of oil-free lubrication. In addition, the first self-lubricating bearing greatly reduces friction and wear between the roller 15 and the sleeve 14, ensuring mobility and service life of the roller 15. And, the sleeve 14 is connected with the mandrel 13 through a second self-lubricating bearing, so that the friction loss between the sleeve 14 and the mandrel 13 is further reduced, the transmission of the chain 1 is more stable, and the service life of the chain 1 is prolonged. The first self-lubricating bearing and the second self-lubricating bearing do not need oil supply for lubrication, so that the wear resistance is excellent, and a good working state can be kept under a high-temperature working condition, so that the chain 1 can work under an oil-free lubrication working condition, and the appearance of the chain 1 does not need to be lubricated by using a large amount of lubricating grease; the technical problem that the lubricating grease can be carbonized at high temperature and powder can be adhered to the film is solved fundamentally.
Specifically, the middle part of the clamping handle 22 is rotatably mounted on the base 21 through a swing shaft 23, the tail part of the clamping handle 22 faces upwards, and the head part of the clamping handle 22 and the clamping surface of the base 21 clamp the film together. In practical application, the clamping device is closed or opened through the action of the clamping closing mechanism and the clamping opening mechanism.
Preferably, referring to fig. 2 and 3, a spring sleeve 61 is arranged between the middle part of the clamping handle 22 and the base 21, a spring 66 is arranged in the spring sleeve 61, one end of the spring sleeve 61 is provided with a cylindrical hole 62, and the other end is provided with a waist-shaped hole 63; one end of the spring 66 is connected with the clamping handle 22 through the first cylindrical pin 64 and the first cylindrical pin 64 is inserted into the cylindrical hole 62, and the other end is connected with the base 21 through the second cylindrical pin 65 and the second cylindrical pin 65 is inserted into the kidney-shaped hole 63. The kidney-shaped hole 63 extends along the length of the spring housing 61.
The gripper 2 is closed as follows: when the clamping handle 22 is subjected to an inward acting force, namely a force in the direction indicated by an arrow a in fig. 3, the clamping handle 22 rotates clockwise around the swinging shaft 23 in an initial state, the head of the clamping handle 22 swings downwards to press the clamping surface of the base 21, at this time, the first cylindrical pin 64 rotates downwards along with the clamping handle 22 under the drive of the clamping handle 22, the spring sleeve 61 rotates anticlockwise around the second cylindrical pin 65, meanwhile, the spring sleeve 61 slides rightwards along the kidney-shaped hole 63 thereof, the first cylindrical pin 64 and the spring sleeve 61 move rightwards together, so that the first cylindrical pin 64 approaches the second cylindrical pin 65, the distance between the first cylindrical pin 64 and the second cylindrical pin 65 is reduced, the spring 66 is compressed, and when the centers of the swinging shaft 23, the first cylindrical pin 64 and the second cylindrical pin 65 are connected into a straight line, the distance between the first cylindrical pin 64 and the second cylindrical pin 65 is shortest, and the spring compression amount is largest; when the tail of the clamping lever 22 is no longer under force, and therefore the centre line of the first cylindrical pin 64 is lower than the centre line of the second cylindrical pin 65, the spring 66 presses the clamping lever 22 to hold the clamp 2 closed.
The gripper 2 opens as follows: when the clamping handle 22 receives an external force, that is, a force in the direction indicated by the arrow B in fig. 2, the clamping handle 22 rotates counterclockwise around the swinging shaft 23, the head of the clamping handle 22 swings upward and gradually disengages from the clamping surface of the base 21, at this time, the first cylindrical pin 64 rotates upward along with the driving of the clamping handle 22, the spring sleeve 61 rotates clockwise around the second cylindrical pin 65, when the tail of the clamping handle 22 is no longer stressed, the clamping handle continues to rotate under the action of inertia until the clamping handle stops after abutting against the base, at this time, the center line of the first cylindrical pin 64 is higher than the center lines of the swinging shaft 23 and the second cylindrical pin 65, the clamper 2 is opened, and the spring 66 pushes the clamping handle 22 to keep the clamper 2 in an open state.
Further, referring to fig. 1 to 3, the first guide wheel 31 includes two first upper side guide wheels 311 disposed in a front-to-back distribution manner and two first lower side guide wheels 312 corresponding to the first upper side guide wheels 311; the second guide wheel 32 includes two second upper guide wheels 321 arranged in a front-back manner and two second lower guide wheels 322 corresponding to the two second upper guide wheels 321. Through the co-location action of a plurality of guide wheels, the clamping device 2 moves smoothly and stably along the guide rail 4.
Preferably, referring to fig. 2 and 3, the second upper guide wheel 321 is disposed right above the chain 1, and the second lower guide wheel 322 is disposed right below the chain 1. Through the arrangement, the structure of the clamping device 2 is more compact and reasonable.
Preferably, referring to fig. 2 and 3, the first guide wheel 31 and the third guide wheel 33 are both connected to the base 21 through a bolt 71, and the second guide wheel 32 is connected to the base through a fixed pin. The first guide wheel 31, the second guide wheel 32 and the third guide wheel 33 can be detachably connected with the base 21, and even if the guide wheels are damaged, the guide wheels can be replaced conveniently.
Specifically, referring to fig. 5 and 6, each group of the inner links 11 includes a pair of inner link plates 111 arranged in parallel, and the two inner link plates 111 are connected with the bushing 14; each group of the outer chain links 12 comprises a pair of outer chain plates 121 arranged in parallel, and the two outer chain plates 121 are connected with the mandrel 13; the middle part of each outer chain plate 121 is provided with a connecting hole 10 for the bolt 5 to pass through. The mandrel 13 is connected with the two outer chain plates 121 in an interference fit manner; the outer ring of the first oilless self-lubricating bearing 16 is in interference fit with the roller 15, the inner ring of the first oilless self-lubricating bearing 16 is in clearance fit with the sleeve 14, the inner ring of the second self-lubricating bearing 17 is in clearance fit with the mandrel 13, and the outer ring of the second oilless self-lubricating bearing 17 is in interference fit with the sleeve 14.
Further, referring to fig. 1, the base 21 includes an upper bracket 211 and a base 212, the upper bracket 211 is provided with a counter bore 213, the base 212 is provided with a positioning hole 214, the plug pin 5 includes a limiting head 51, a pin shaft section 52, a positioning section 53 and a thread fixing section 54, which are sequentially connected, the plug pin 5 sequentially passes through the counter bore 213, the two connecting holes 10 and the positioning hole 214 from top to bottom, the limiting head 51 is disposed in the counter bore 213, the positioning section 53 is disposed in the positioning hole 214, the thread fixing section 54 passes through the positioning hole 214 and is screwed into a nut 55, and the upper surface of the nut 55 abuts against the lower surface of the base 212 to achieve connection between the upper bracket and the base.
Preferably, referring to fig. 5, the two ends of the sleeve 14 are provided with retaining rings 18, and the retaining rings 18 are located between the outer chain plate 121 and the sleeve 14. The retainer ring 18 is sleeved on the mandrel 13, and can position the sleeve 14 to prevent the sleeve 14 from moving axially.
In order to reduce the abrasion between the retainer ring 18 and the outer link plate 121, a wear pad 19 is arranged between the retainer ring 18 and the outer link plate 121.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (10)
1. The transverse film stretching clamp is characterized by comprising a chain and a plurality of clamping devices arranged on the chain, wherein each clamping device comprises a base and a clamping handle rotatably arranged on the base; the base is in rolling connection with the outer side face of the guide rail through a first guide wheel, the base is in rolling connection with the inner side face of the guide rail through a second guide wheel, and the base is in rolling connection with the top face of the guide rail through a third guide wheel; the center lines of the first guide wheel and the second guide wheel are in the direction of a plumb line; the central line direction of the third guide wheel is the horizontal direction; the chain comprises a plurality of groups of inner chain links and outer chain links, and the inner chain links are connected with the outer chain links through mandrels, sleeves and rollers; the inner chain link is connected with the sleeve, and the outer chain link is connected with the mandrel; the sleeve is sleeved on the periphery of the mandrel, and the roller is sleeved on the periphery of the sleeve; a first oil-free self-lubricating bearing is arranged between the roller and the sleeve; a second oilless self-lubricating bearing is arranged between the sleeve and the mandrel; the chain passes through the base, and the base is fixedly connected with the outer chain link of the chain through the bolt.
2. The film transverse stretching clamp according to claim 1, wherein the middle part of the clamping handle is rotatably mounted on the base through the swinging shaft, the tail part of the clamping handle faces upwards, and the head part of the clamping handle and the clamping surface of the base clamp the film together.
3. The transverse film stretching clamp as claimed in claim 2, wherein a spring sleeve is arranged between the middle part of the clamping handle and the base, a spring is arranged in the spring sleeve, one end of the spring sleeve is provided with a cylindrical hole, and the other end of the spring sleeve is provided with a waist-shaped hole; one end of the spring is connected with the clamping handle through the first cylindrical pin, the first cylindrical pin is inserted into the cylindrical hole, the other end of the spring is connected with the base through the second cylindrical pin, and the second cylindrical pin is inserted into the kidney-shaped hole.
4. The film transverse stretching clamp according to claim 1, wherein the first guide wheels comprise two first upper side guide wheels arranged in a front-to-back manner and two corresponding first lower side guide wheels; the second guide wheel comprises two second upper side guide wheels which are distributed in the front and back direction and two second lower side guide wheels which correspond to the second upper side guide wheels.
5. The film cross-stretching clamp of claim 4, wherein the second upper guide roller is disposed directly above the chain, and the second lower guide roller is disposed directly below the chain.
6. The film cross-stretching clamp of claim 4 or 5, wherein the first guide wheel, the second guide wheel and the third guide wheel are connected with the base through bolts.
7. The film cross-stretching clamp of claim 1, wherein each set of the inner links comprises a pair of inner link plates arranged in parallel, and the two inner link plates are connected with the sleeve; each group of the outer chain links comprises a pair of outer chain plates which are arranged in parallel, and the two outer chain plates are connected with the core shaft; and the middle part of each outer chain plate is provided with a connecting hole for the bolt to pass through.
8. The clamp for transversely stretching a film as claimed in claim 7, wherein the base comprises an upper bracket and a base, the upper bracket is provided with a counter bore, the base is provided with a positioning hole, the bolt comprises a limiting head, a pin shaft section, a positioning section and a thread fixing section which are connected in sequence, the bolt sequentially passes through the counter bore, two connecting holes and the positioning hole from top to bottom, the limiting head is arranged in the counter bore, the positioning section is arranged in the positioning hole, and the thread fixing section passes through the positioning hole and is screwed into a nut.
9. The transverse film stretching clamp as claimed in claim 7, wherein the sleeve is provided with retaining rings at both ends thereof, and the retaining rings are located between the outer chain plates and the sleeve.
10. The transverse film stretching clamp as claimed in claim 9, wherein a wear pad is disposed between the retainer ring and the outer link plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010850226.6A CN112065975A (en) | 2020-08-21 | 2020-08-21 | Film transverse stretching clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010850226.6A CN112065975A (en) | 2020-08-21 | 2020-08-21 | Film transverse stretching clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112065975A true CN112065975A (en) | 2020-12-11 |
Family
ID=73658906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010850226.6A Pending CN112065975A (en) | 2020-08-21 | 2020-08-21 | Film transverse stretching clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112065975A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770910A (en) * | 2022-05-27 | 2022-07-22 | 佛山市盟思拉伸机械有限公司 | Dynamic stabilizing mechanism and synchronous stretching device of chain clip |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105799149A (en) * | 2016-04-26 | 2016-07-27 | 北京华腾佳和科技有限公司 | Chain link assembly, chain and film stretching device capable of reducing longitudinal shrinkage ratio |
| WO2017080315A1 (en) * | 2015-11-12 | 2017-05-18 | 甘启强 | Chain with high wear resistance and multi-row chain consisting of same |
| CN207864531U (en) * | 2017-12-14 | 2018-09-14 | 浙江中烟工业有限责任公司 | A kind of holder bottom belt chain |
| CN208914592U (en) * | 2018-10-15 | 2019-05-31 | 佛山市盟思拉伸机械有限公司 | High-speed film transverse stretching equipment and longitudinal thermal finalization mechanism |
| CN212616237U (en) * | 2020-08-21 | 2021-02-26 | 广东仕诚塑料机械有限公司 | Film transverse stretching clamp |
-
2020
- 2020-08-21 CN CN202010850226.6A patent/CN112065975A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017080315A1 (en) * | 2015-11-12 | 2017-05-18 | 甘启强 | Chain with high wear resistance and multi-row chain consisting of same |
| CN105799149A (en) * | 2016-04-26 | 2016-07-27 | 北京华腾佳和科技有限公司 | Chain link assembly, chain and film stretching device capable of reducing longitudinal shrinkage ratio |
| CN207864531U (en) * | 2017-12-14 | 2018-09-14 | 浙江中烟工业有限责任公司 | A kind of holder bottom belt chain |
| CN208914592U (en) * | 2018-10-15 | 2019-05-31 | 佛山市盟思拉伸机械有限公司 | High-speed film transverse stretching equipment and longitudinal thermal finalization mechanism |
| CN212616237U (en) * | 2020-08-21 | 2021-02-26 | 广东仕诚塑料机械有限公司 | Film transverse stretching clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770910A (en) * | 2022-05-27 | 2022-07-22 | 佛山市盟思拉伸机械有限公司 | Dynamic stabilizing mechanism and synchronous stretching device of chain clip |
| CN114770910B (en) * | 2022-05-27 | 2024-03-05 | 佛山市盟思拉伸机械有限公司 | Dynamic stabilizing mechanism and synchronous stretching device of chain clamp |
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