CN215098733U - Mechanism for realizing rapid contact sealing of upper and lower vacuum cavities - Google Patents
Mechanism for realizing rapid contact sealing of upper and lower vacuum cavities Download PDFInfo
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- CN215098733U CN215098733U CN202121010438.XU CN202121010438U CN215098733U CN 215098733 U CN215098733 U CN 215098733U CN 202121010438 U CN202121010438 U CN 202121010438U CN 215098733 U CN215098733 U CN 215098733U
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Abstract
The utility model provides a mechanism for realizing the quick contact sealing of upper and lower vacuum cavities, which comprises a fixed frame, an upper vacuum cavity mounting platform fixed on the fixed frame, and a lower vacuum cavity mounting platform vertically and slidably connected on the fixed frame, wherein a lifting seat which can move up and down under the driving of a driving motor is arranged below the lower vacuum cavity mounting platform; and a retarding connecting rod mechanism is arranged between the lifting seat and the lower vacuum die cavity mounting platform and is used for reducing the vertical movement speed of the lower vacuum die cavity mounting platform when the lower vacuum die cavity mounting platform moves to the highest point under the driving of the lifting seat. The utility model discloses a driving motor drives the seat that goes up and down with electric drive's mode and reciprocates to the action through retardance link mechanism realizes going up vacuum mold cavity mounting platform and lower vacuum mold cavity mounting platform's separation and butt, can reduce the terminal speed of mechanism motion through retardance link mechanism, prevents the deformation of cavity under the big impulsive force circumstances about the vacuum, increases the stability of equipment.
Description
Technical Field
The utility model relates to a stretch film packaging machinery's technical field especially indicates a cavity of resorption quick contact sealing mechanism on realizing the vacuum.
Background
At present, a plurality of mechanisms for realizing the contact and the separation of the upper cavity and the lower cavity in vacuum are provided, most of the mechanisms are driven by air cylinders or hydraulic cylinders, the speed is not controllable, the mechanisms can be used in places with low requirements on the packaging speed, compressed air or hydraulic oil is required to be consumed, and the environment is polluted.
In addition, the speed of the pneumatic drive is not controllable, the pneumatic drive is used, the driven mechanism can only move at a constant speed, the moving speed is limited, and under the condition of high requirement on the packaging speed, the pneumatic drive can consume a lot of time and slow down the speed. In addition, the vacuum upper and lower cavities are in contact with each other instantly, impact is inevitable, the speed cannot be reduced by air driving when the upper and lower cavities are in contact with each other, and slow contact can only be realized by air buffering or a series of complex link mechanisms, so that the contact impact force is large or the structure is complex. If the upper vacuum cavity and the lower vacuum cavity are deformed, vacuum cannot be guaranteed, the packaged product becomes an unqualified product, and once the upper vacuum cavity and the lower vacuum cavity are deformed, the upper vacuum cavity and the lower vacuum cavity cannot be repaired and can only be replaced, so that the cost of equipment is increased firstly, and the production period is delayed secondly.
The packaged products are changeable, the height and the size are different, the air drive can only fix the stroke, the distance for separating the vacuum upper cavity from the vacuum lower cavity is constant, and the vacuum upper cavity and the vacuum lower cavity can not be randomly adjusted according to the products, so that a lot of idle strokes can be added, and the time waste is caused.
SUMMERY OF THE UTILITY MODEL
In view of this, the main object of the present invention is to provide a mechanism for realizing the sealing of the upper and lower vacuum cavities by fast contact, which is driven by a motor to realize the sealing of the upper and lower vacuum cavities by fast contact, and cooperates with the action of the retarding linkage mechanism to reduce the speed of the motion end of the mechanism, thereby preventing the deformation of the upper and lower vacuum cavities under the condition of large impact force and increasing the stability of the device.
The utility model provides a mechanism for realizing the quick contact sealing of upper and lower vacuum cavities, which comprises a body fixing frame, an upper vacuum cavity mounting platform fixed on the body fixing frame, and a lower vacuum cavity mounting platform positioned below the upper vacuum cavity mounting platform and vertically connected on the body fixing frame in a sliding manner, wherein a lifting seat which can move up and down under the driving of a driving motor is arranged below the lower vacuum cavity mounting platform; and a retarding connecting rod mechanism is arranged between the lifting seat and the lower vacuum die cavity mounting platform and is used for reducing the vertical movement speed of the lower vacuum die cavity mounting platform when the lower vacuum die cavity mounting platform moves to the highest point under the driving of the lifting seat.
By last, drive the seat through driving motor with electric drive mode and reciprocate to the action through slow speed link mechanism realizes going up vacuum die cavity mounting platform and lower vacuum die cavity mounting platform's separation and butt, can make the vacuum cavity of going up the cavity of resorption quick contact seal together, forms an inclosed space, and guarantees that the confined space is isolated with atmospheric environment completely. The speed of the motion tail end of the mechanism can be reduced through the retarding connecting rod mechanism, deformation of the upper vacuum cavity and the lower vacuum cavity under the condition of high impact force is prevented, and the stability of the equipment is improved.
Optionally, the retarding connecting rod mechanism comprises a driving connecting rod rotatably connected to the lifting seat, and a transmission connecting rod and a retarding connecting rod both rotatably connected to the other end of the driving connecting rod; the other end of the transmission connecting rod is rotatably connected to a side fixing plate fixed on the body fixing frame; the other end of the slow speed connecting rod is rotatably connected to the lower vacuum mold cavity mounting platform; the driving connecting rod is rotatably connected to one end of the lifting seat and synchronously moves up and down along with the lifting seat.
By the upper part, when the lower vacuum die cavity mounting platform moves to the highest point through the retarding connecting rod mechanism, the vertical movement speed of the lower vacuum die cavity mounting platform is obviously reduced when the speed of the input end is unchanged, and the impact force in the contact sealing process of the vacuum upper and lower cavities is reduced; if the speed of the input end of the lifting seat is reduced, the impact force of the contact sealing process of the upper vacuum cavity and the lower vacuum cavity is further reduced. In the past, the vacuum upper cavity and the vacuum lower cavity can be protected from being deformed due to large impact force.
Optionally, the two retarding link mechanisms are symmetrically arranged, and the two driving links are respectively and rotatably connected to two ends of the lifting seat; and the two retarding connecting rods are respectively and rotatably connected to two ends of the bottom of the lower vacuum die cavity mounting platform.
By the upper part, the two retarding connecting rod mechanisms which are symmetrically arranged make the motion of the lower vacuum mold cavity mounting platform more stable.
Optionally, the driving connecting rod is rotatably connected with the transmission connecting rod and the retarding connecting rod through a first rotating shaft with an oil nozzle.
By last, pour into lubricating grease into to first rotation axis through glib talker, lubricating grease is full of the surface of first rotation axis, reaches the lubricated effect of whole contact surface, improves the smoothness degree of the rotation process between drive connecting rod and transmission connecting rod and the slow speed connecting rod.
Optionally, the retarding connecting rod is rotatably connected to the lower vacuum cavity mounting platform through a second rotating shaft and a sliding bearing.
By last, through slide bearing and second rotation axis improvement slow speed connecting rod and the smooth degree of the rotation process between the vacuum cavity mounting platform down to improve the bearing capacity of slow speed connecting rod.
Optionally, the lifting seat is screwed with a ball screw, and the driving motor drives the ball screw to rotate through a transmission mechanism so as to drive the lifting seat to move up and down.
By last, through the linear motion of the screw drive conversion between ball and the lift seat into the lift seat, make the removal of lift seat more stable, the chamber produces better sealed effect about the vacuum.
Optionally, the transmission mechanism includes a driving gear fixed on an output shaft of the driving motor, a driven gear fixed on the ball screw, and a chain engaged with the driving gear and the driven gear, the driving motor drives the driven gear to rotate through the driving gear and the chain, and the ball screw is driven to rotate through the rotation of the driven gear.
By last, drive mechanism adopts driving motor cooperation gear drive, and the load that gear drive can bear is bigger, can not appear skidding the phenomenon, has guaranteed that driven stability and bearable load are bigger, and the reliability is high.
Optionally, the transmission mechanism includes a driving pulley fixed on an output shaft of the driving motor, a driven pulley fixed on the ball screw, and a synchronous belt connected to the driving pulley and the driven pulley, the driving motor drives the driven pulley to rotate through the driving pulley and the synchronous belt, and the ball screw is driven to rotate through the rotation of the driven pulley.
By last, drive mechanism adopts the belt drive's mode, is applicable to the transmission of long distance, compares in gear drive structure simpler, and is with low costs.
Optionally, the bottom of the lower vacuum mold cavity mounting platform is connected with a guide rod for restricting the lifting seat from vertically rising and falling, and the guide rod penetrates through a through hole corresponding to the lifting seat and is in sliding connection with the lifting seat.
By last, the lift seat can move in upper and lower direction under the guide of two guide arms, improves the motion stability of lift seat to be favorable to the up-and-down motion of lower vacuum mold cavity mounting platform.
Optionally, the body fixing frame is provided with a guide post for the lower vacuum mold cavity mounting platform to move up and down.
The upper vacuum die cavity mounting platform and the lower vacuum die cavity mounting platform can move in the upper and lower directions under the guidance of the four guide posts, so that the motion stability of the lower vacuum die cavity mounting platform is improved; the four guide posts are utilized to play a role in guiding the lifting of the lower vacuum die cavity mounting platform, so that deflection in the lifting process is prevented, parts such as a lead screw are prevented from being damaged, and the positioning precision (the positioning precision in the horizontal direction) of the lifting platform can be improved
Drawings
FIG. 1 is a schematic perspective view of a mechanism for achieving vacuum sealing of upper and lower cavities by rapid contact according to the present invention;
fig. 2 is a cross-sectional view of the vacuum sealing mechanism for realizing the quick contact between the upper and lower cavities.
Detailed Description
The utility model relates to a cavity of resorption quick contact sealing mechanism on realizing the vacuum generally is used for continuous stretching membrane automatic packaging machine. The present invention will be described in detail with particular reference to fig. 1-2.
The utility model discloses a mechanism for realizing the fast contact sealing of upper and lower vacuum cavities, which comprises a body fixing frame 10, an upper vacuum cavity mounting platform 11 fixed on the body fixing frame 10, and a lower vacuum cavity mounting platform 12 connected on the body fixing frame 10 in a sliding way in the up-down direction, wherein, the lower vacuum die cavity installation platform 12 is positioned under the upper vacuum die cavity installation platform 11, the body fixing frame 10 is provided with guide posts 13 for the lower vacuum die cavity installation platform 12 to move up and down, the number of the guide posts 13 is four, the guide posts are distributed in a rectangular array, guide holes matched with the guide posts 13 are arranged at the positions of the lower vacuum die cavity installation platform 12 corresponding to the guide posts 13, the four guide holes are respectively arranged at four corners of the lower vacuum die cavity installation platform 12, the lower vacuum mold cavity mounting platform 12 vertically slides along the axial direction of the guide column 13 of the body fixing frame 10 through the matching of the guide column 13 and the guide hole. The upper vacuum die cavity mounting platform 11 for fixing the upper vacuum cavity is fixed, the lower vacuum die cavity mounting platform 12 for fixing the lower vacuum cavity can slide up and down along the four guide posts 13, and the contact sealing and the separation of the upper vacuum cavity and the lower vacuum cavity are realized by utilizing the up-and-down sliding of the lower vacuum die cavity mounting platform 12.
Wherein, the lower part of the lower vacuum mold cavity mounting platform 12 is provided with a lifting seat 30 which can drive the lower vacuum mold cavity mounting platform 12 to lift, and the lifting seat 30 moves up and down under the action of the driving motor 20. A retarding link mechanism is arranged between the lifting seat 30 and the lower vacuum mold cavity mounting platform 12, and under the action of the retarding link mechanism, when the lower vacuum mold cavity mounting platform 12 moves to the highest point under the driving of the lifting seat 30, the vertical movement speed of the lower vacuum mold cavity mounting platform 12 is reduced, so that the vacuum upper and lower cavities arranged on the upper vacuum mold cavity mounting platform 11 and the lower vacuum mold cavity mounting platform 12 can not deform due to large impact force.
The utility model discloses a driving motor 20 drives lift seat 30 and slow-speed link mechanism and removes to produce relative movement between vacuum cavity mounting platform 11 and the lower vacuum cavity mounting platform 12 on making, the contact of cavity of resorption is sealed on the realization vacuum. The utility model discloses a slow link mechanism rotates the transmission connecting rod 42 and the slow link 43 of being connected including rotating the drive connecting rod 41 of connecting on lift seat 30, all with the other end of drive connecting rod 41, and wherein, the other end of transmission connecting rod 42 rotates and connects at side fixed plate 14, and this side fixed plate 14 fixed connection is on body mount 10. The other end of the slow link 43 is rotatably connected to the lower vacuum cavity mounting platform 12, and the end of the driving link 41 rotatably connected to the lifting base 30 moves up and down synchronously with the lifting base 30. The speed of the movement tail end of the mechanism is reduced through the mutual movement and matching of the driving connecting rod 41, the transmission connecting rod 42 and the retarding connecting rod 43, the deformation of the upper vacuum cavity and the lower vacuum cavity under the condition of large impact force is prevented, and the stability of the equipment is improved. In addition, the retarding connecting rod mechanism can also be used for bearing impact, and the lead screw or the servo motor is prevented from being damaged. In principle, it is ensured that the centers of the driving link 41 and the retarding link 43 are in a vertical straight line when the lifting base 30 is lifted to the highest point, so that the connecting rod and the bearing can bear the downward impact when the lower vacuum mold cavity mounting platform 12 is lifted to the highest point. The vacuum upper cavity is internally provided with a cylinder, an air bag and other mechanisms, after the actions of vacuumizing and the like are finished, the cylinder or the air bag can press the sealing plate to the lower cavity, so that the two layers of packaging films clamped between the upper cavity and the lower cavity are sealed together under the conditions of certain temperature and pressure. Generally, the diameter of the cylinder and the diameter of the air bag are both larger, and the downward force is also larger.
The utility model discloses a driving motor 20 generally adopts servo motor or step motor to provide power, adopt driving motor 20 to control the motion of lower vacuum mold cavity mounting platform 12, can be according to actual demand, chamber break away from distance about adjusting the vacuum at will, unnecessary motion space has been saved, and speed is adjustable, reduce speed before the contact, make the slow contact of cavity of resorption about the vacuum, prevent that violent impact from causing the cavity of resorption to warp or have the internal stress, solve and use probably to cause the cavity of resorption deformation for a long time, lead to the problem that sealed degree descends.
Additionally, the utility model discloses a two of retardance link mechanism for the symmetry setting, two retardance link mechanism install at the both ends of lift seat 30 symmetrically, guarantee two retardance link mechanism synchronization action, and two drive link 41 rotate respectively and connect in the both ends of lift seat 30, and two retardance link 43 rotate respectively and connect in the bottom both ends of lower vacuum mold cavity mounting platform 12. The lower vacuum die cavity mounting platform 12 can be driven to move up and down more stably through the two retarding connecting rod mechanisms, and the vacuum upper and lower cavities are in quick contact to generate a better sealing effect.
In the present invention, the rotation connection of the driving link 41 and the transmission link 42 and the deceleration link 43 is provided with the first rotation shaft 61 with the oil nipple. Retarded connecting rod 43 is provided with second rotation axis 62 and slide bearing with the rotation junction of lower vacuum cavity mounting platform 12 the utility model provides an every rotates junction department and is equipped with bearing and rotation axis, annotates lubricating grease through the glib talker of bearing and rotation axis, and lubricating grease is full of the surface of rotation axis, reaches the lubricated effect of whole contact surface, makes between each connecting rod of retarded link mechanism and the rotation between retarded link mechanism and lower vacuum cavity mounting platform 12 and the lift seat 30 be connected and rotate more smoothly.
Wherein, in a preferred embodiment of the present invention, the lifting seat 30 is screwed with a ball screw 50, and the driving motor 20 drives the ball screw 50 to rotate through the transmission mechanism 70 to drive the lifting seat 30 to move up and down. When the lower vacuum cavity mounting platform 12 is raised to the top, the ball screw 50 can provide at least 5000N of force to fit the vacuum upper cavity and the vacuum lower cavity together, thereby preventing air leakage during vacuum pumping.
In order to restrain and ensure the vertical lifting of the lifting seat 30, two guide rods 31 are connected to the bottom of the lower vacuum mold cavity mounting platform 12, the two guide rods 31 are respectively located at two sides of the ball screw 50, and the guide rods 31 pass through corresponding through holes of the lifting seat 30 and form sliding connection with the lifting seat 30.
Preferably, the utility model discloses a drive mechanism 70 is including fixing the driving gear on driving motor 20's output shaft, fixing the driven gear on ball 50, the chain of being connected with driving gear and driven gear meshing, and driving motor 20 drives driven gear through driving gear and chain and rotates, and it is rotatory to drive ball 50 through driven gear's rotation, turns into the linear motion of lift seat 30 through the rotary motion between ball 50 and the lift seat 30, and then makes lift seat 30 reciprocate. The transmission mechanism adopts the driving motor 20 to match with gear transmission, so that the load borne by the gear transmission is larger, the slipping phenomenon can not occur, the transmission stability and the bearable load are ensured to be larger, and the reliability is high.
In addition, in another embodiment, the utility model discloses a drive mechanism can also adopt belt drive's mode, drive mechanism 70 of this embodiment is including fixing the driving pulley on driving motor 20's output shaft, fix the driven pulleys on ball 50, the hold-in range of being connected with driving pulley and driven pulleys, driving motor 20 drives driven pulleys through driving pulley and hold-in range and rotates, it is rotatory to drive ball 50 through driven pulleys's rotation, the linear motion of seat 30 is turned into through the rotary motion between ball 50 and the seat 30 that goes up and down, and then make the seat 30 that goes up and down reciprocate. The belt transmission is suitable for long-distance transmission, and compared with a gear transmission structure, the belt transmission is simpler in structure and low in cost.
The utility model discloses a mechanism reduces when laminating for two parts and assaults, and the laminating back bears great impact force and designs, can reach similar use occasion.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
For example, in the above embodiment, the upper vacuum mold cavity mounting platform 11 is fixedly arranged, the lower vacuum mold cavity mounting platform 12 is movably arranged, and the relative movement between the upper vacuum mold cavity mounting platform 11 and the lower vacuum mold cavity mounting platform 12 is realized by the movement of the lower vacuum mold cavity mounting platform 12, so as to realize the contact sealing and the separation of the upper vacuum cavity and the lower vacuum cavity; however, without being limited thereto, the lower vacuum cavity mounting platform 12 may be fixedly disposed, and the upper vacuum cavity mounting platform 11 may be movably disposed, and the relative movement between the upper vacuum cavity mounting platform 11 and the lower vacuum cavity mounting platform 12 may be realized by the movement of the upper vacuum cavity mounting platform 11.
Claims (10)
1. The utility model provides a realize cavity of resorption quick contact sealing mechanism on vacuum, includes the body mount, fixes last vacuum mold chamber mounting platform on the body mount, be located go up vacuum mold chamber mounting platform's below and vertical sliding connection in lower vacuum mold chamber mounting platform on the body mount, its characterized in that:
a lifting seat which moves up and down under the driving of a driving motor is arranged below the lower vacuum mold cavity mounting platform;
and a retarding connecting rod mechanism is arranged between the lifting seat and the lower vacuum die cavity mounting platform and is used for reducing the vertical movement speed of the lower vacuum die cavity mounting platform when the lower vacuum die cavity mounting platform moves to the highest point under the driving of the lifting seat.
2. The mechanism for realizing the quick contact sealing of the upper and lower cavities in vacuum as claimed in claim 1, wherein the retarding connecting rod mechanism comprises a driving connecting rod rotatably connected to the lifting seat, a transmission connecting rod and a retarding connecting rod both rotatably connected with the other end of the driving connecting rod;
the other end of the transmission connecting rod is rotatably connected to a side fixing plate fixed on the body fixing frame;
the other end of the slow speed connecting rod is rotatably connected to the lower vacuum mold cavity mounting platform;
the driving connecting rod is rotatably connected to one end of the lifting seat and synchronously moves up and down along with the lifting seat.
3. The mechanism for realizing vacuum upper and lower cavity quick contact sealing as claimed in claim 2, wherein the two slow connecting rod mechanisms are symmetrically arranged, and the two driving connecting rods are respectively and rotatably connected to two ends of the lifting seat; and the two retarding connecting rods are respectively and rotatably connected to two ends of the bottom of the lower vacuum die cavity mounting platform.
4. The mechanism for realizing vacuum upper and lower cavity quick contact sealing as claimed in claim 2 or 3, wherein the driving connecting rod is rotatably connected with the transmission connecting rod and the retarding connecting rod through a first rotating shaft with a nozzle tip.
5. The mechanism for realizing the quick contact sealing of the upper and lower vacuum cavities as claimed in claim 2 or 3, wherein the slow speed link is rotatably connected with the lower vacuum cavity mounting platform through a second rotating shaft and a sliding bearing.
6. The mechanism for realizing the rapid contact sealing of the upper and lower vacuum cavities according to claim 1, wherein a ball screw is screwed in the lifting seat, and the driving motor drives the ball screw to rotate through a transmission mechanism so as to drive the lifting seat to move up and down.
7. The mechanism as claimed in claim 6, wherein the transmission mechanism comprises a driving gear fixed on the output shaft of the driving motor, a driven gear fixed on the ball screw, and a chain engaged with the driving gear and the driven gear, the driving motor drives the driven gear to rotate through the driving gear and the chain, and the ball screw is driven to rotate through the rotation of the driven gear.
8. The mechanism as claimed in claim 6, wherein the transmission mechanism comprises a driving pulley fixed on the output shaft of the driving motor, a driven pulley fixed on the ball screw, and a synchronous belt connected to the driving pulley and the driven pulley, the driving motor drives the driven pulley to rotate through the driving pulley and the synchronous belt, and the ball screw is driven to rotate through the rotation of the driven pulley.
9. The mechanism for realizing the rapid contact sealing of the upper and lower vacuum cavities according to claim 1, wherein a guide rod for restraining the lifting seat from vertically rising and falling is connected to the bottom of the lower vacuum cavity mounting platform, and the guide rod passes through the through hole corresponding to the lifting seat and is slidably connected with the lifting seat.
10. The mechanism of claim 1, wherein the body mount has a guide post for the lower vacuum cavity mounting platform to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121010438.XU CN215098733U (en) | 2021-05-12 | 2021-05-12 | Mechanism for realizing rapid contact sealing of upper and lower vacuum cavities |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121010438.XU CN215098733U (en) | 2021-05-12 | 2021-05-12 | Mechanism for realizing rapid contact sealing of upper and lower vacuum cavities |
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| CN215098733U true CN215098733U (en) | 2021-12-10 |
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| CN202121010438.XU Active CN215098733U (en) | 2021-05-12 | 2021-05-12 | Mechanism for realizing rapid contact sealing of upper and lower vacuum cavities |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173297A (en) * | 2021-05-12 | 2021-07-27 | 北京大森包装机械有限公司 | Mechanism for realizing rapid contact sealing of upper and lower vacuum cavities |
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2021
- 2021-05-12 CN CN202121010438.XU patent/CN215098733U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173297A (en) * | 2021-05-12 | 2021-07-27 | 北京大森包装机械有限公司 | Mechanism for realizing rapid contact sealing of upper and lower vacuum cavities |
| CN113173297B (en) * | 2021-05-12 | 2024-05-28 | 北京大森包装机械有限公司 | Quick contact sealing mechanism for realizing vacuum upper and lower cavities |
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