CN211842856U - Mould platform lifting driving mechanism of thermoforming machine - Google Patents
Mould platform lifting driving mechanism of thermoforming machine Download PDFInfo
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- CN211842856U CN211842856U CN202020138937.6U CN202020138937U CN211842856U CN 211842856 U CN211842856 U CN 211842856U CN 202020138937 U CN202020138937 U CN 202020138937U CN 211842856 U CN211842856 U CN 211842856U
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Abstract
A mould platform lifting driving mechanism of a thermoforming machine comprises a supporting seat, a movable mould platform, an eccentric driving device, a lifting transmission mechanism, a plurality of guide posts and a plurality of guide sleeves, wherein the lifting transmission mechanism and the eccentric driving device are arranged between the supporting seat and the movable mould platform; the lifting transmission mechanism comprises a lever and two connecting rod mechanisms which are arranged side by side front and back, each connecting rod mechanism comprises two first connecting rods, two second connecting rods, a third connecting rod and a fourth connecting rod, one ends of the two first connecting rods are hinged with the supporting seat, one ends of the two second connecting rods are hinged with the movable mold table, the other ends of the second connecting rods are hinged with the other ends of the corresponding first connecting rods, one ends of the third connecting rods and one ends of the fourth connecting rods are hinged with the middle part of one first connecting rod, and the other ends of the third connecting rods are hinged with the middle part of the other first connecting rod; the middle part of the lever is hinged with the supporting seat, one end of the lever is connected with the power output end of the eccentric driving device, and the other end of the lever is hinged with the other end of the fourth connecting rod. The utility model is not only compact in structure, but also can promote the stability of operation.
Description
Technical Field
The utility model relates to a thermoforming machine, concretely relates to thermoforming machine's mould platform lift actuating mechanism.
Background
Thermoforming machines are commonly used to make and process plastic materials into various plastic products. The thermoforming machine generally comprises a frame, a fixed die table, a movable die table and a movable die table lifting driving mechanism; the fixed die table and the movable die table are provided with dies; the movable mould platform is connected with the power output end of the movable mould platform lifting driving mechanism. Usually, the fixed die table is arranged above the movable die table (the fixed die table can also be arranged below the movable die table), and the fixed die table can be fixedly arranged on the rack. In order to stably lift and lower the movable mold table, the machine frame comprises a plurality of guide posts (usually four guide posts) which move up and down, the fixed mold table is usually fixedly mounted on the guide posts, the movable mold table is usually provided with a plurality of guide sleeves or guide through holes, the number of the guide sleeves or the guide through holes is the same as that of the guide posts, the guide sleeves or the guide through holes are matched with the guide posts in a one-to-one correspondence manner, and the guide posts are positioned in the guide sleeves or the guide through. When thermoforming is carried out, the movable mould platform lifting driving mechanism drives the movable mould platform to do lifting movement, so that mould closing and mould opening are realized; after the die is closed, the plastic material is heated and molded by the die to obtain the plastic product.
At present, a movable mold table lifting driving mechanism for mold closing generally comprises a supporting seat, a movable mold table, a driving motor, a camshaft, an eccentric wheel, a rocker arm, a guide sleeve, a push rod and a plurality of guide posts, wherein each guide post is arranged on the supporting seat and moves up and down; the driving motor is arranged on the supporting seat, the cam shaft is rotatably arranged on the supporting seat and is in transmission connection with the driving motor, the eccentric wheel is fixedly arranged on the cam shaft, and the lower end of the rocker arm is sleeved on the eccentric wheel; the guide sleeve is arranged on the movable mould table and moves up and down, the push rod is positioned in the guide sleeve, and the lower end of the push rod is hinged with the upper end of the rocker arm. When the die assembly and die sinking device works, the driving motor drives the cam shaft to rotate to drive the eccentric wheel to eccentrically rotate around the cam shaft, the eccentric wheel drives the push rod to move up and down along the guide sleeve through the rocker arm to drive the moving die table to do reciprocating lifting motion along each guide post, and die assembly and die sinking are completed. Because eccentric wheel, rocking arm and push rod can occupy great installation space, in order to prevent that thermoforming machine's whole is too high or the volume is too huge, generally set up push rod and uide bushing between movable mould platform and supporting seat to with driving motor, eccentric wheel and rocking arm setting in the outside of movable mould platform, but this can lead to movable mould platform lift actuating mechanism's focus to take place the skew, often can take place acutely to rock when high-speed operation, the stability of operation is relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a thermoforming machine's mould platform lift actuating mechanism is provided, this kind of mould platform lift actuating mechanism not only can make holistic compact structure, effectively reduces the installation space who occupies, can avoid taking place acutely to rock at high-speed operation moreover, promotes the stability of operation greatly. The technical scheme is as follows:
the utility model provides a thermoforming machine's mould platform lift actuating mechanism, including the supporting seat, the movable mould platform, eccentric drive arrangement, lift drive mechanism, a plurality of guide post and a plurality of uide bushing, each guide post is all installed on the supporting seat and move towards from top to bottom, the top or the below of supporting seat are located to the movable mould platform, the movable mould platform cup joints on each guide post through each uide bushing, lift drive mechanism sets up between supporting seat and movable mould platform, eccentric drive arrangement's power take off end passes through lift drive mechanism and is connected its characterized in that with the transmission of movable mould platform: the eccentric driving device is arranged on the supporting seat and is positioned between the supporting seat and the movable die table; the lifting transmission mechanism comprises a lever and two connecting rod mechanisms, the two connecting rod mechanisms are arranged in parallel front and back, the connecting rod mechanisms comprise two first connecting rods, two second connecting rods, a third connecting rod and a fourth connecting rod, the two first connecting rods are arranged side by side left and right and are parallel to each other, one ends of the two first connecting rods are hinged to the supporting seat, the two second connecting rods are arranged side by side left and right and are parallel to each other, one ends of the two second connecting rods are hinged to the movable mold table, the two second connecting rods are in one-to-one correspondence with the two first connecting rods, the other ends of the second connecting rods are hinged to the other ends of the first connecting rods, one ends of the third connecting rod and one end of the fourth connecting rod are hinged to the middle part of one of the first connecting rods, and; the middle part of the lever is hinged with the supporting seat, one end of the lever is connected with the power output end of the eccentric driving device, and the other end of the lever is hinged with the other end of the fourth connecting rod.
During operation, the eccentric driving device drives the lever to swing up and down in a reciprocating mode around the hinged position of the middle of the lever and the supporting seat, and then the corresponding fourth connecting rods in the two connecting rod mechanisms respectively drive the two first connecting rods, the two second connecting rods and the third connecting rod to swing in a reciprocating mode left and right, so that the movable die table and the guide sleeves are driven to lift up and down in a reciprocating mode along the guide columns, and die assembly and die opening are completed. Above-mentioned mould platform lift actuating mechanism drives the lever through eccentric drive device and swings about its middle part articulated department luffing motion, two link mechanism drives the movable mould platform of rethread and is elevating movement, and with eccentric drive device, lift drive mechanism sets up between supporting seat and movable mould platform, relative ratio adopts push rod and uide bushing to drive the structure that the movable mould platform goes up and down among the prior art, not only can make holistic compact structure, effectively reduce the installation space who occupies, and can effectively reduce mould platform lift actuating mechanism's focus position and ensure that its focus can not appear great skew, avoid mould platform lift actuating mechanism to take place acutely to rock at high-speed operation, thereby promote the stability of operation greatly.
In a preferred scheme, the eccentric driving device comprises a rotating shaft, an eccentric wheel, a rocker arm and a driving motor, wherein the rotating shaft is rotatably arranged on the supporting seat and moves forwards and backwards, the eccentric wheel is fixedly arranged on the rotating shaft, one end of the rocker arm is sleeved on the eccentric wheel, and the other end of the rocker arm is hinged with one end of the lever; the driving motor is arranged on the supporting seat, and a power output shaft of the driving motor is in transmission connection with the rotating shaft. When the eccentric wheel works, the driving motor drives the rotating shaft to rotate, and drives the eccentric wheel to eccentrically rotate around the axis of the rotating shaft; the eccentric wheel drives the lever to swing up and down in a reciprocating manner around the hinged position of the middle part of the lever and the supporting seat through the rocker arm.
In a more preferable scheme, the eccentric wheel, the rocker arm and the lever are all positioned between the two connecting rod mechanisms. Therefore, the overall structure of the die table lifting driving mechanism is more compact, and the operation is more stable.
Usually, a speed reducer is disposed between the driving motor and the rotating shaft, and a power output shaft of the driving motor is in transmission connection with the rotating shaft through the speed reducer.
In the preferred scheme, the middle parts of the two first connecting rods on the left side are provided with connecting pin shafts, the left ends of the third connecting rods and the left end of the fourth connecting rod are rotatably connected with the connecting pin shafts, and the right ends of the two third connecting rods are respectively hinged with the middle parts of the corresponding first connecting rods on the right side.
The thermoforming machine may comprise one or two of said mould table lifting drive mechanisms. In one specific scheme, the thermoforming machine comprises a rack, a fixed die table and one die table lifting driving mechanism, wherein the fixed die table and the movable die table are arranged side by side from top to bottom, the fixed die table and the supporting seat are fixedly arranged on the rack, and dies are arranged on the fixed die table and the movable die table; when thermoforming is carried out, the movable mould table is driven to do lifting motion, the movable mould table moves towards the fixed mould table or moves back to the fixed mould table, and mould closing and mould opening of two moulds are realized; after the die is closed, the plastic material is heated and molded by the die to obtain the plastic product. In another specific scheme, the thermoforming machine comprises a rack and two die table lifting driving mechanisms, wherein the two movable die tables are arranged side by side up and down, the supporting seat is fixedly arranged on the rack, and dies are arranged on both the two movable die tables; when thermoforming is carried out, the two movable mould tables move oppositely or back to back through the lifting motion of the two movable mould tables, so that the mould closing and opening of the two moulds are realized; after the die is closed, the plastic material is heated and molded by the die to obtain the plastic product.
The utility model discloses a mould platform lift actuating mechanism passes through eccentric drive device drive lever and winds its middle part articulated department luffing motion, two link mechanism of rethread drive movable mould platform and be elevating movement, and with eccentric drive device, lift drive mechanism sets up between supporting seat and movable mould platform, the relative ratio adopts push rod and uide bushing to drive the structure that the movable mould platform goes up and down among the prior art, not only can make holistic compact structure, effectively reduce the installation space who occupies, and can effectively reduce mould platform lift actuating mechanism's focus position and ensure that great skew can not appear in its focus, avoid mould platform lift actuating mechanism to take place acutely to rock at high-speed operation, thereby promote the stability of operation greatly.
Drawings
Fig. 1 is a schematic structural diagram of a first usage state of the present invention.
Fig. 2 is a perspective view of fig. 1.
Fig. 3 is a schematic structural diagram of a second usage state of the preferred embodiment of the present invention.
Detailed Description
As shown in fig. 1, 2 and 3, the mold table lifting driving mechanism of the thermoforming machine comprises a supporting seat 1, a movable mold table 2, an eccentric driving device 3, a lifting transmission mechanism 4, a plurality of guide posts 5 and a plurality of guide sleeves 6, wherein each guide post 5 is installed on the supporting seat 1 and moves up and down, the movable mold table 2 is arranged above the supporting seat 1, and the movable mold table 2 is sleeved on each guide post 5 through each guide sleeve 6; the lifting transmission mechanism 4 is arranged between the supporting seat 1 and the movable mould platform 2, and the eccentric driving device 3 is arranged on the supporting seat 1 and is positioned between the supporting seat 1 and the movable mould platform 2; the lifting transmission mechanism 4 comprises a lever 41 and two link mechanisms 42, the two link mechanisms 42 are arranged side by side in the front and back direction, each link mechanism 42 comprises two first links 421, two second links 422, a third link 423 and a fourth link 424, the two first links 421 are arranged side by side in the left-right direction and are parallel to each other, the lower ends of the two first links 421 are hinged to the supporting seat 1, the two second links 422 are arranged side by side in the left-right direction and are parallel to each other, the upper ends of the two second links 422 are hinged to the movable mold table 2, the two second links 422 correspond to the two first links 421 one by one, and the lower ends of the second links 422 are hinged to the upper ends of the first links 421; one end of the third link 423 and one end of the fourth link 424 are both hinged to the middle of one of the first links 421, and the other end of the third link 423 is hinged to the middle of the other first link 421; the middle part of the lever 41 is hinged with the supporting seat 1, one end of the lever 41 is connected with the power output end of the eccentric driving device 3, and the other end of the lever 41 is hinged with the other end of the fourth connecting rod 424.
In this embodiment, the connecting pin 43 is installed in the middle of the two first connecting rods 421 on the left side, the left ends of the two third connecting rods 423 and the left end of the fourth connecting rod 424 are both rotatably connected to the connecting pin 43, and the right ends of the two third connecting rods 423 are respectively hinged to the middle of the corresponding first connecting rods 421 on the right side.
In this embodiment, the eccentric driving device 3 includes a rotating shaft 31, an eccentric wheel 32, a rocker 33 and a driving motor 34, the rotating shaft 31 is rotatably installed on the supporting seat 1 and moves forward and backward, the eccentric wheel 32 is fixedly installed on the rotating shaft 31, one end of the rocker 33 is sleeved on the eccentric wheel 32, and the other end of the rocker 33 is hinged with one end of a lever 41; the driving motor 34 is arranged on the supporting seat 1, and a power output shaft of the driving motor 34 is in transmission connection with the rotating shaft 31; the eccentric 32, the rocker 33 and the lever 41 are located between two linkages 42.
The working principle of the mold table lifting driving mechanism is briefly described as follows:
during operation, the driving motor 34 drives the rotating shaft 31 to rotate, the eccentric wheel 32 is driven to eccentrically rotate around the rotating shaft 31, the eccentric wheel 32 drives the lever 41 to vertically swing in a reciprocating manner around the hinged position of the middle part of the lever 41 and the supporting seat 1 through the rocker arm 33, and then the movable die table 2 and each guide sleeve 6 are driven to reciprocate along each guide post 5 through the two link mechanisms 42, so that die assembly and die opening are completed. In the die closing process, the eccentric wheel 32 drives the left end of the lever 41 to swing downwards around the hinged position of the middle part of the lever 41 and the supporting seat 1 through the rocker arm 33, and then sequentially passes through the connecting pin 43 and the two fourth connecting rods 424 to pull each first connecting rod 421 and each second connecting rod 422 to swing rightwards together (at the moment, the connecting pin 43 and the two third connecting rods 423 can enable each first connecting rod 421 and each second connecting rod 422 to realize linkage and synchronous movement), so that the movable die table 2 and each guide sleeve 6 are driven to ascend along each guide post 5 together. In the die opening process, the eccentric wheel 32 drives the left end of the lever 41 to swing upwards around the hinged position of the middle part of the lever 41 and the supporting seat 1 through the rocker arm 33, and then pulls each first connecting rod 421 and each second connecting rod 422 to swing leftwards together through the two fourth connecting rods 424 (at this time, the connecting pin shaft 43 and the two third connecting rods 423 can enable each first connecting rod 421 and each second connecting rod 422 to realize linkage and synchronous movement), so as to drive the movable die table 2 and each guide sleeve 6 to descend along each guide post 5 together.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The utility model provides a thermoforming machine's mould platform lift actuating mechanism, including the supporting seat, the movable mould platform, eccentric drive arrangement, lift drive mechanism, a plurality of guide post and a plurality of uide bushing, each guide post is all installed on the supporting seat and move towards from top to bottom, the top or the below of supporting seat are located to the movable mould platform, the movable mould platform cup joints on each guide post through each uide bushing, lift drive mechanism sets up between supporting seat and movable mould platform, eccentric drive arrangement's power take off end passes through lift drive mechanism and is connected its characterized in that with the transmission of movable mould platform: the eccentric driving device is arranged on the supporting seat and is positioned between the supporting seat and the movable die table; the lifting transmission mechanism comprises a lever and two connecting rod mechanisms, the two connecting rod mechanisms are arranged in parallel front and back, the connecting rod mechanisms comprise two first connecting rods, two second connecting rods, a third connecting rod and a fourth connecting rod, the two first connecting rods are arranged side by side left and right and are parallel to each other, one ends of the two first connecting rods are hinged to the supporting seat, the two second connecting rods are arranged side by side left and right and are parallel to each other, one ends of the two second connecting rods are hinged to the movable mold table, the two second connecting rods are in one-to-one correspondence with the two first connecting rods, the other ends of the second connecting rods are hinged to the other ends of the first connecting rods, one ends of the third connecting rod and one end of the fourth connecting rod are hinged to the middle part of one of the first connecting rods, and; the middle part of the lever is hinged with the supporting seat, one end of the lever is connected with the power output end of the eccentric driving device, and the other end of the lever is hinged with the other end of the fourth connecting rod.
2. The mold table elevation drive mechanism of a thermoforming machine as recited in claim 1, further comprising: the eccentric driving device comprises a rotating shaft, an eccentric wheel, a rocker arm and a driving motor, the rotating shaft is rotatably arranged on the supporting seat and moves forwards and backwards, the eccentric wheel is fixedly arranged on the rotating shaft, one end of the rocker arm is sleeved on the eccentric wheel, and the other end of the rocker arm is hinged with one end of the lever; the driving motor is arranged on the supporting seat, and a power output shaft of the driving motor is in transmission connection with the rotating shaft.
3. The mold table elevation drive mechanism of a thermoforming machine as recited in claim 2, further comprising: the eccentric wheel, the rocker arm and the lever are all positioned between the two connecting rod mechanisms.
4. The mold table elevation drive mechanism of a thermoforming machine as claimed in any of claims 1-3, characterized in that: the middle parts of the first connecting rods on the left side are provided with connecting pin shafts, the left ends of the third connecting rods and the fourth connecting rods are rotatably connected with the connecting pin shafts, and the right ends of the third connecting rods are hinged to the middle parts of the corresponding first connecting rods on the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020138937.6U CN211842856U (en) | 2020-01-21 | 2020-01-21 | Mould platform lifting driving mechanism of thermoforming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020138937.6U CN211842856U (en) | 2020-01-21 | 2020-01-21 | Mould platform lifting driving mechanism of thermoforming machine |
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| Publication Number | Publication Date |
|---|---|
| CN211842856U true CN211842856U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020138937.6U Active CN211842856U (en) | 2020-01-21 | 2020-01-21 | Mould platform lifting driving mechanism of thermoforming machine |
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|---|---|
| CN (1) | CN211842856U (en) |
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- 2020-01-21 CN CN202020138937.6U patent/CN211842856U/en active Active
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Address after: 7 / F, management committee building, Jinping private science and Technology Park, middle section of Da Xue Road, Shantou City, Guangdong Province Patentee after: Guangdong Dacheng Technology Co.,Ltd. Patentee after: SHANTOU DACHENG ENVIRONMENTAL PROTECTION PRECISION MACHINERY TECHNOLOGY Co.,Ltd. Address before: 7 / F, management committee building, Jinping private science and Technology Park, middle section of Da Xue Road, Shantou City, Guangdong Province Patentee before: GUANGDONG DESIGNER TECHNOLOGY Co.,Ltd. Patentee before: SHANTOU DACHENG ENVIRONMENTAL PROTECTION PRECISION MACHINERY TECHNOLOGY Co.,Ltd. |