阅读说明：本技术 一种薄膜卷双段位自动涨紧及位置调节机构 (Automatic tensioning and position adjusting mechanism for double-section position of film roll ) 是由 陈中威 于 2019-12-09 设计创作，主要内容包括：本发明涉及金属化薄膜技术领域,尤其涉及一种薄膜卷双段位自动涨紧及位置调节机构,包括：固定板、中空轴、心轴；中空轴转动固定在固定板上,心轴穿过中空轴设置；固定板的一侧设置有驱动机构,中空轴远离固定板的一侧上设置有夹紧机构；驱动机构包括气缸和伺服电机,气缸的活塞杆与心轴端部连接；伺服电机的转轴与中空轴连接；夹紧机构包括中间环、胀圈和推拔轴,胀圈设置在中间环内,推拔轴套设在中间环内部的中空轴上,推拔轴与胀圈的接触面为斜面；中间环朝向其中心延伸设置有弹簧固定部,弹簧固定部上固定有推力弹簧,推力弹簧的另一端与推拔轴连接,心轴凸出于中空轴端部的一端连接有托板,托板上设置有与推拔轴的端部接触的连接部。(The invention relates to the technical field of metalized films, in particular to a film roll double-section-position automatic tensioning and position adjusting mechanism, which comprises: a fixed plate, a hollow shaft, a spindle; the hollow shaft is rotationally fixed on the fixing plate, and the mandrel penetrates through the hollow shaft; a driving mechanism is arranged on one side of the fixed plate, and a clamping mechanism is arranged on one side of the hollow shaft away from the fixed plate; the driving mechanism comprises a cylinder and a servo motor, and a piston rod of the cylinder is connected with the end part of the mandrel; a rotating shaft of the servo motor is connected with the hollow shaft; the clamping mechanism comprises an intermediate ring, an expansion ring and a push-pull shaft, wherein the expansion ring is arranged in the intermediate ring, the push-pull shaft is sleeved on a hollow shaft in the intermediate ring, and the contact surface of the push-pull shaft and the expansion ring is an inclined surface; the middle ring is provided with a spring fixing part extending towards the center, a thrust spring is fixed on the spring fixing part, the other end of the thrust spring is connected with the pushing and pulling shaft, one end of the mandrel protruding out of the end part of the hollow shaft is connected with a supporting plate, and the supporting plate is provided with a connecting part contacting with the end part of the pushing and pulling shaft.)

1. The utility model provides a two section position automatic rising of film book and position control mechanism which characterized in that includes: a fixing plate (10), a hollow shaft (20), and a spindle (30);

the hollow shaft (20) is rotationally fixed on the fixing plate (10), and the mandrel (30) is arranged through the hollow shaft (20);

a driving mechanism (40) is arranged on one side of the fixing plate (10), and a clamping mechanism (50) is arranged on one side, far away from the fixing plate (10), of the hollow shaft (20);

the driving mechanism (40) comprises an air cylinder (41) and a servo motor (42), and a piston rod of the air cylinder (41) is connected with the end of the mandrel (30) to drive the axial movement of the mandrel (30); the rotating shaft of the servo motor (42) is connected with the hollow shaft (20) through a synchronous belt so as to drive the hollow shaft (20) to rotate;

the clamping mechanism (50) comprises an intermediate ring (51), an expansion ring (52) and a push-pull shaft (53), the expansion ring (52) is arranged in the intermediate ring (51) and arranged along the radial direction of the intermediate ring (51) in a sliding manner, the push-pull shaft (53) is sleeved on a hollow shaft (20) in the intermediate ring (51), the contact surface of the push-pull shaft (53) and the expansion ring (52) is an inclined surface, and when the push-pull shaft (53) moves axially, the contact surface of the push-pull shaft (53) and the expansion ring (52) pushes the expansion ring (52) to move in the radial direction;

the middle ring (51) extends towards the center thereof and is provided with a spring fixing part (511), a thrust spring (512) is fixed on the spring fixing part (511), the other end of the thrust spring (512) is connected with the push-pull shaft (53) to push the push-pull shaft (53) to move axially, one end of the mandrel (30) protrudes out of the end part of the hollow shaft (20), one end of the mandrel (30) protruding out of the end part of the hollow shaft (20) is connected with a supporting plate (54), and the supporting plate (54) is provided with a connecting part (541) which is in contact with the end part of the push-pull shaft (53).

2. The film roll double-section-position automatic tensioning and position adjusting mechanism according to claim 1, wherein a pulling seat (411) is connected to an end of a piston rod of the air cylinder (41), a connecting block (301) is fixed to one end of the mandrel (30) connected with the air cylinder (41), the pulling seat (411) is connected with the connecting block (301), and a cavity for the connecting block (301) to rotate is formed in the pulling seat (411).

3. The film roll double-segment-position automatic tensioning and position adjusting mechanism according to claim 1, wherein the expansion ring (52) is composed of at least two ring flaps (521), a ring groove (522) is arranged on the outer surface of each ring flap (521), and a compression spring (523) is sleeved on each ring groove (522).

4. The mechanism for automatically tensioning and adjusting the position of the two-section position of the film roll according to claim 3, wherein a top block (524) is detachably fixed on the expansion ring (52), and a hole corresponding to the top block (524) is formed in the middle ring (51).

5. The film roll dual-stage automatic tensioning and position adjusting mechanism according to claim 1, wherein a spring cavity (31) is formed at one end of the hollow shaft (20) close to the supporting plate (54), a second spring (32) is arranged between the spring cavity (31) and the supporting plate (54), and the second spring (32) is sleeved on the mandrel (30).

6. The film roll double-section-position automatic tensioning and position adjusting mechanism according to claim 1, wherein a spring fixing seat (55) is connected to an end of the intermediate ring (51), a second pulling shaft (56) and a second expansion ring (57) are arranged between the intermediate ring (51) and the spring fixing seat (55), a top end of the second pulling shaft (56) is connected with the pulling shaft (53), and the second pulling shaft (56) is connected with the spring fixing seat (55) through a second compression spring (58).

7. The film roll double-section-position automatic tensioning and position adjusting mechanism according to claim 6, wherein a positioning bracket (60) is fixed on the spring fixing seat (55), a fixing support plate (61) which is perpendicular to the axial direction of the intermediate ring (51) is arranged on the positioning bracket (60), and at least three fixing support plates (61) are arranged along the circumferential direction.

8. The film roll double-section-position automatic tensioning and position adjusting mechanism according to claim 1, wherein a bearing sleeve (21) is arranged on the hollow shaft (20), a linear bearing (22) is arranged on the bearing sleeve (21), the linear bearing (22) is fixed on a base plate (23), and the base plate (23) is arranged in parallel with the fixing plate (10);

the base plate (23) is rotatably provided with an adjusting rod (24), the adjusting rod (24) and the hollow shaft (20) are arranged in parallel, the adjusting rod (24) penetrates through the fixing plate (10), and the adjusting rod (24) is provided with threads meshed with the fixing plate (10).

Technical Field

The invention relates to the technical field of metalized film machinery, in particular to a film roll double-section-position automatic tensioning and position adjusting mechanism.

Background

The metallized film capacitor is that a metal film is evaporated on the surface of a polyester film to replace a metal foil as an electrode, and the volume of the metallized film layer after being wound is much smaller than that of the metal foil because the thickness of the metallized film layer is far smaller than that of the metal foil. The greatest advantage of metallized film capacitors is the "self-healing" characteristic. The self-healing characteristic is that if the film medium has a defect at a certain point and has a breakdown short circuit under the action of overvoltage, the metallized layer of the breakdown point can be instantly melted and evaporated under the action of electric arc to form a small metal-free area, so that two pole pieces of the capacitor are insulated from each other again and can still work, thereby greatly improving the working reliability of the capacitor.

Need use the winder to roll up film fixed and rotatory when production metallized film to make effective even unreeling of metallized film come out, among the prior art, often adopt the material dish device of manual screwing, it is fixed with the material dish through the tight mode of fastener clamp, then this kind of mode installation is inconvenient with the dismantlement, when the material dish is high-speed rotatory moreover, has not hard up possibility.

In view of the above problems, the designer is actively researched and innovated based on the practical experience and professional knowledge of the engineering application of the products for many years and by matching with the application of the theory, so as to create a film roll double-section automatic tensioning and position adjusting mechanism, which is more practical.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the double-section-position automatic tensioning and position adjusting mechanism for the film roll is provided, and automatic tensioning and contraction functions of the film roll are achieved.

In order to achieve the purpose, the invention adopts the technical scheme that: a film roll double-section-position automatic tensioning and position adjusting mechanism comprises: a fixed plate, a hollow shaft, a spindle;

the hollow shaft is rotationally fixed on the fixing plate, and the spindle penetrates through the hollow shaft;

a driving mechanism is arranged on one side of the fixed plate, and a clamping mechanism is arranged on one side of the hollow shaft, which is far away from the fixed plate;

the driving mechanism comprises an air cylinder and a servo motor, and a piston rod of the air cylinder is connected with the end part of the mandrel so as to drive the mandrel to move axially; a rotating shaft of the servo motor is connected with the hollow shaft through a synchronous belt so as to drive the hollow shaft to rotate;

the clamping mechanism comprises an intermediate ring, an expansion ring and a push-pull shaft, the expansion ring is arranged in the intermediate ring and is arranged in a sliding manner along the radial direction of the intermediate ring, the push-pull shaft is sleeved on a hollow shaft in the intermediate ring, the contact surface of the push-pull shaft and the expansion ring is an inclined surface, and when the push-pull shaft moves axially, the contact surface of the push-pull shaft and the expansion ring pushes the expansion ring to move in the radial direction;

the middle ring extends towards the center of the middle ring and is provided with a spring fixing part, a thrust spring is fixed on the spring fixing part, the other end of the thrust spring is connected with the push-pull shaft so as to push the push-pull shaft to move axially, one end of the mandrel protrudes out of the end part of the hollow shaft, one end of the mandrel protruding out of the end part of the hollow shaft is connected with a supporting plate, and a connecting part in contact with the end part of the push-pull shaft is arranged on the supporting plate.

Preferably, a pulling seat is connected to the end of a piston rod of the cylinder, a connecting block is fixed to one end of the mandrel connected with the cylinder, the pulling seat is connected with the connecting block, and a cavity for the connecting block to rotate is formed in the pulling seat.

Preferably, the expansion ring comprises two section at least ring clacks, be provided with the annular on the surface of ring clack, the cover is equipped with compression spring on the annular.

Preferably, a top block is detachably fixed on the expansion ring, and a hole site corresponding to the top block is formed in the middle ring.

Preferably, one end of the hollow shaft close to the supporting plate is provided with a spring cavity, a second spring is arranged between the spring cavity and the supporting plate, and the second spring is sleeved on the mandrel.

Preferably, a spring fixing seat is connected to the end portion of the intermediate ring, a second pushing shaft and a second expansion ring are arranged between the intermediate ring and the spring fixing seat, the top end of the second pushing shaft is connected with the pushing shaft, and the second pushing shaft is connected with the spring fixing seat through a second compression spring.

Preferably, a positioning support is fixed on the spring fixing seat, a fixing support plate which is axially perpendicular to the intermediate ring is arranged on the positioning support, and at least three fixing support plates are arranged in the circumferential direction.

Preferably, a bearing sleeve is arranged on the hollow shaft, a linear bearing is arranged on the bearing sleeve, the linear bearing is fixed on a substrate, and the substrate is arranged in parallel with the fixing plate;

the base plate is rotatably provided with an adjusting rod, the adjusting rod is arranged in parallel with the hollow shaft and penetrates through the fixing plate, and the adjusting rod is provided with threads meshed with the fixing plate.

The invention has the beneficial effects that: the push-pull shaft is pushed by the thrust spring on the spring fixing part in the intermediate ring, so that the push-pull shaft and the inclined plane of the expansion ring on the intermediate ring slide relatively, and the axial movement of the push-pull shaft is realized under the driving action of the cylinder on the mandrel, so that the film roll sleeved on the expansion ring is fixed and disassembled, namely expanded or contracted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a cross-sectional view of a dual-position automatic tensioning and position adjusting mechanism of a film roll in an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a two-stage automatic tensioning and position adjusting mechanism of a film roll according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1A according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional view of the expander in an embodiment of the present invention;

FIG. 6 is a schematic structural view of another view of the two-stage automatic tensioning and position adjusting mechanism of the film roll according to the embodiment of the present invention;

FIG. 7 is a sectional view of a two-stage automatic tensioning and position adjusting mechanism of a film roll with an adjusting rod according to an embodiment of the present invention.

Reference numerals: 10-fixing plate, 20-hollow shaft, 21-bearing sleeve, 22-linear bearing, 23-base plate, 24-adjusting rod, 30-mandrel, 31-spring cavity, 32-second spring, 40-driving mechanism, 41-cylinder, 42-servo motor, 50-clamping mechanism, 51-intermediate ring, 52-expansion ring, 53-push shaft, 54-supporting plate, 55-spring fixing seat, 56-second push shaft, 57-second expansion ring, 58-second compression spring, 60-positioning bracket, 61-fixing supporting plate, 301-connecting block, 411-pull seat, 511-spring fixing part, 512-push spring, 521-ring flap, 522-ring groove, 523-compression spring, 524-ejector block, 541-connecting part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The automatic tension and position adjusting mechanism for the two-section position of the film roll shown in fig. 1 comprises: a fixed plate 10, a hollow shaft 20, a spindle 30;

the hollow shaft 20 is rotationally fixed on the fixing plate 10, and the mandrel 30 is arranged through the hollow shaft 20;

a driving mechanism 40 is arranged on one side of the fixed plate 10, and a clamping mechanism 50 is arranged on one side of the hollow shaft 20 away from the fixed plate 10;

as shown in fig. 2, the driving mechanism 40 includes a cylinder 41 and a servo motor 42, a piston rod of the cylinder 41 is connected to the end of the spindle 30 to drive the spindle 30 to move axially; the rotating shaft of the servo motor 42 is connected with the hollow shaft 20 through a synchronous belt so as to drive the hollow shaft 20 to rotate; the cylinder 41 is fixed on the fixing plate 10 by a support column, and a piston rod of the cylinder 41 is coaxially disposed with the spindle 30.

As shown in fig. 3, the clamping mechanism 50 includes an intermediate ring 51, an expansion ring 52 and a pulling shaft 53, the expansion ring 52 is disposed in the intermediate ring 51 and is arranged to slide along the radial direction of the intermediate ring 51, the pulling shaft 53 is sleeved on the hollow shaft 20 inside the intermediate ring 51, the contact surface between the pulling shaft 53 and the expansion ring 52 is an inclined surface, and when the pulling shaft 53 moves axially, the contact surface with the expansion ring 52 pushes the expansion ring 52 to move in the radial direction; the axial movement of the tapered shaft 53 causes relative movement with the expander 52, and the radial expansion and contraction of the expander 52 are caused by the contact of the inclined surfaces.

The middle ring 51 is provided with a spring fixing part 511 extending towards the center thereof, a thrust spring 512 is fixed on the spring fixing part 511, the other end of the thrust spring 512 is connected with the push-pull shaft 53 to push the push-pull shaft 53 to move axially, one end of the mandrel 30 is arranged to protrude out of the end part of the hollow shaft 20, one end of the mandrel 30 protruding out of the end part of the hollow shaft 20 is connected with a supporting plate 54, and the supporting plate 54 is provided with a connecting part 541 contacted with the end part of the push-pull shaft 53. In the above embodiment, the thrust spring 512 is in a compressed state before the forward movement of the mandrel 30, so that the pulling shaft 53 is pushed forward by the thrust of the thrust spring 512 when the mandrel 30 moves forward; when the mandrel 30 moves backward, since the connecting portion 541 on the supporting plate 54 contacts with the front end of the pulling shaft 53, the mandrel 30 moves backward, which drives the connecting portion 541 on the supporting plate 54 to move backward, the connecting portion 541 abuts against the pulling shaft 53, the pulling shaft 53 is pushed backward, the thrust spring 512 is compressed again, and the diameter of the expanding ring 52 is reduced due to the backward movement of the pulling shaft 53, so that the film roll is detached.

Because the elastic acting force exists between the mandrel 30 and the pulling shaft 53, the mandrel 30 can rotate along with the hollow shaft 30, and in order to prevent the cylinder 41 from rotating, as shown in fig. 4, the end of the piston rod of the cylinder 41 is connected with a pulling seat 411, one end of the mandrel 30 connected with the cylinder 41 is fixed with a connecting block 301, the pulling seat 411 is connected with the connecting block 301, and a cavity for the connecting block 301 to rotate is arranged in the pulling seat 411. It should be noted that the pull seat 411 herein may also be a component with a bearing, such that the pull seat 411 is axially and rotationally connected with the piston rod of the cylinder 41, and the same purpose is achieved as the connecting block 301 rotates in the pull seat 411.

As shown in fig. 5, the expander 52 is preferably composed of at least two ring-shaped petals 521, a ring groove 522 is disposed on the outer surface of the ring-shaped petals 521, and a compression spring 523 is sleeved on the ring groove 522. The expander 52 is formed by joining a plurality of annular flaps 521, and when the inclined surface of the tapered shaft 53 contacts the inclined surface of the expander 52, the gap between the annular flaps 521 is increased to expand in the radial direction, and when the contact surface between the inclined surface of the tapered shaft 53 and the inclined surface of the expander 52 is decreased, the outer diameter of the expander 52 is decreased by the elastic force of the compression spring 523.

As a preferred embodiment, referring to fig. 5, the top block 524 is detachably fixed on the expansion ring 52, and the middle ring 51 is provided with a hole corresponding to the top block 524. The setting can be dismantled to kicking block 524, through the setting of dismantling of kicking block 524, can adjust the height of kicking block 524 to the adaptation different internal diameter size's film rolls up, improved the suitability of device.

Preferably, in the above embodiment, a spring cavity 31 is provided at one end of the hollow shaft 20 close to the support plate 54, a second spring 32 is provided between the spring cavity 31 and the support plate 54, and the second spring 32 is sleeved on the spindle 30. By the arrangement of the second spring 32, the friction force between the mandrel 30 and the hollow shaft 20 is offset, so that the cylinder 41 is more stable in driving.

In order to further improve the applicability of the device, so that the device can fix a wider film roll, please refer to fig. 4, the end of the intermediate ring 51 is connected with a spring fixing seat 55, a second pulling shaft 56 and a second expanding ring 57 are arranged between the intermediate ring 51 and the spring fixing seat 55, the top end of the second pulling shaft 56 is connected with the pulling shaft 53, and the second pulling shaft 56 is connected with the spring fixing seat 55 through a second compression spring 58. The driving mode of the second pushing and pulling shaft 56 is the same as that of the pushing and pulling shaft 53, and is not repeated here, the top of the second pushing and pulling shaft 56 contacts with the bottom of the pushing and pulling shaft 53, the second pushing and pulling shaft 56 is reset together through the retraction of the pushing and pulling shaft 53, and the ejector blocks fixed on the second expansion ring 57 and the ejector blocks on the expansion ring 52 are arranged in a staggered manner, so that when the film roll is fixed, the stress is more uniform, and the fixing effect is better.

As shown in fig. 6, in the above embodiment, preferably, the spring fixing seat 55 is fixed with a positioning bracket 60, the positioning bracket 60 is provided with fixing brackets 61 perpendicular to the axial direction of the intermediate ring 51, and at least three fixing brackets 61 are provided in the circumferential direction. The fixing support plate 61 is used for supporting the material disc, so that after the film roll is fixed on the middle ring, the fixing support plate 61 provides a plane for positioning the film roll, and the side face of the film roll is kept perpendicular to the substrate after clamping.

In order to solve the above problems, as shown in fig. 7, a bearing sleeve 21 is disposed on a hollow shaft 20, a linear bearing 22 is disposed on the bearing sleeve 21, the linear bearing 22 is fixed on a substrate 23, and the substrate 23 is disposed parallel to the fixing plate 10;

the base plate 23 is rotatably provided with an adjusting rod 24, the adjusting rod 24 is arranged parallel to the hollow shaft 20, the adjusting rod 24 penetrates through the fixing plate 10, and the adjusting rod 24 is provided with a thread engaged with the fixing plate 10. When the device is installed, the base plate 23 is fixed on equipment, then the fixing plate 10 is pulled close to or far away from the equipment by rotating the adjusting rod 24 and rotating the threads on the adjusting rod 24, so that the axial position of the film roll is adjusted, and meanwhile, a guide column is arranged between the fixing plate 10 and the base plate 23, so that the adjusting stability is improved.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.