CN116374337A - Linkage mechanical exhaust and transfer mechanism of heavy powder packaging machine - Google Patents

Abstract

The invention discloses a linkage mechanical exhaust and transfer mechanism of a heavy powder packaging machine, including locating exhaust unit, the clamping unit in advance and the transfer unit on the support, the clamping unit in advance is located exhaust unit's top, wherein: the exhaust unit includes: the exhaust clamping piece is arranged on the first substrate and at least comprises a first clamping arm and a second clamping arm, the first clamping arm and/or the second clamping arm move along a first preset path, and when the first clamping arm and/or the second clamping arm move to the tail end of the first preset path, the first clamping arm is abutted with the second clamping arm; the first driving piece is used for driving the first clamping arm and/or the second clamping arm to move along a first preset path; the second driving piece is used for driving the first substrate to reciprocate along a first preset direction. Compared with the prior art, the air in the packaging bag can be rapidly discharged by arranging the air discharging unit, the pre-clamping unit and the transferring unit, so that the technical problems of bag sewing deviation and the like are avoided.

Description

A heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism

technical field

The invention relates to the technical field of packaging equipment, in particular to a heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism.

Background technique

On the automatic filling production line of packaging bags, after the packaging bags are filled with powder, follow-up operations such as sewing and palletizing need to be carried out. This will lead to technical problems such as deviation of the sewing bag. Therefore, it is necessary to discharge the air in the packaging bag before sewing the bag, so that the follow-up process can be carried out normally and orderly.

Contents of the invention

The purpose of the present invention is to provide a heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism to solve the technical problems in the prior art, it can quickly and efficiently discharge the air in the packaging bag, and can perform transfer operations simultaneously .

The invention provides a heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism, including an exhaust unit, a pre-clamping unit and a transfer unit arranged on a bracket, the pre-clamping unit is arranged on the exhaust unit above, where:

The exhaust unit includes:

The exhaust clip is arranged on the first substrate, the exhaust clip includes at least a first clip arm and a second clip arm, the first clip arm and/or the second clip arm The preset path moves, and when the first clamp arm and/or the second clamp arm moves to the end of the first preset path, the first clamp arm abuts against the second clamp arm;

a first driving member, configured to drive the first clamping arm and/or the second clamping arm to move along the first preset path;

a second driving member, configured to drive the first substrate to reciprocate along a first preset direction;

The pre-clamping unit includes:

The pre-clamping part is arranged on the second substrate, the pre-clamping part at least includes a third clamping arm and a fourth clamping arm, and the third clamping arm and/or the fourth clamping arm are set in a second preset path movement, when the third clamping arm and/or the fourth clamping arm moves to the end of the second preset path, the third clamping arm abuts against the fourth clamping arm;

a third driving member, configured to drive the first clamping arm and/or the second clamping arm to move along the second preset path;

The fourth driving member is used to drive the second substrate to reciprocate along the second preset direction. The above-mentioned heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism, wherein, preferably, the first driving member includes a first driving cylinder, a first gear and a second gear, and the first driving The cylinder body of the air cylinder is arranged on the first base plate, the end of the piston rod of the first driving cylinder is provided with a pivot seat, and one end of the first clamping arm is pivotally connected to the pivot seat;

The first clamping arm is rotatably arranged on the first substrate with the first preset axis as the center line, the first gear is arranged on the first clamping arm, and the axis of the first gear and the first preset axes coincide;

The second clamping arm is rotatably disposed on the first base plate with the second preset axis as the center line, the second gear is disposed on the second clamping arm, and the axis of the second gear and The second preset axis coincides with each other, and the second gear meshes with the first gear.

In the linkage mechanical exhaust and transfer mechanism of a heavy-duty powder packaging machine as described above, preferably, the first base plate is provided with a first rotating shaft and a second rotating shaft, wherein:

The first preset axis is formed on the axis of the first rotating shaft, a first through hole is formed through the first clip arm, and the first rotating shaft extends into the first through hole to form a clearance fit ;

The second preset axis is formed on the axis of the second rotating shaft, a second through hole is formed through the second clip arm, and the second rotating shaft extends into the second through hole to form a clearance fit .

The above-mentioned heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism, wherein, preferably, the second driving part includes a cylinder slide module, and the first base plate is arranged on the cylinder slide on the slide in the module.

In the linkage mechanical exhaust and transfer mechanism of a heavy-duty powder packaging machine as described above, preferably, the first clamping arm is provided with a first clamping plate, and the second clamping arm is provided with a second clamping plate , when the first clamping arm and/or the second clamping arm moves to the end of the first preset path, the first clamping plate abuts against the first clamping plate.

In the linkage mechanical exhaust and transfer mechanism of a heavy-duty powder packaging machine as described above, preferably, the first splint and the second splint are made of rigid materials, and the first splint and the second splint Two splints are provided with a number of ventilation holes.

The above-mentioned heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism, wherein, preferably, the third clamp arm and the fourth clamp arm can be rotatably connected to the second base plate;

The third drive member includes a third drive cylinder, an adapter block, a first connection block and a second connection block, the third drive cylinder is arranged on the second base plate, and the piston rod of the third drive cylinder The end is connected to the transfer block, one end of the transfer block is connected to one end of the first connection block, the other end of the first connection block is connected to the third clamping arm, and the transfer block The other end of the second connecting block is connected to one end of the second connecting block, and the other end of the second connecting block is connected to the fourth clamping arm.

The above-mentioned heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism, wherein, preferably, the fourth driving member includes a fourth driving cylinder, a guide rod and a guide block arranged on the bracket, There are two guide rods and two guide blocks, the two guide rods are symmetrically arranged on opposite sides of the second base plate, and the extension direction of the guide rods is the same as the second predetermined direction. Arranged in parallel, the guide block is slidably fitted on the guide rod, the guide block is connected to the second base plate, and the end of the piston rod of the fourth driving cylinder is connected to one of the guide blocks.

As described above, a heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism, wherein, preferably, the bracket, the exhaust unit and the pre-clamping unit are provided with two, symmetrically arranged on On the opposite sides of the conveying line of the packaging bag, there are two transfer units, and the two transfer units are arranged in sequence along the conveying direction of the conveying line of the packaging bag. The transfer unit includes a connecting rod, a sector gear and two swing rods, the bottom ends of the two swing rods are respectively connected to the two brackets, the connecting rod connects the two swing rods, and the sector gear is arranged on the connecting rods.

Compared with the prior art, the present invention sets the exhaust unit, the pre-clamping unit and the transfer unit. After the packaging bag is filled with powder in the previous process, it reaches the preset position of the conveying line, and the pre-clamping mechanism first clamps The position of the pocket opening of the packaging bag is used for positioning and pre-fixation. The exhaust unit clamps the part of the packaging bag close to the powder, so as to quickly discharge the air in the packaging bag and avoid technical problems such as seam deviation. The transfer unit will The degassed packaging bags are transferred to the next process. The overall structure is compact, saving space, and the transfer operation can be carried out synchronously, and the work efficiency of the production line can be improved at the same time.

Description of drawings

Fig. 1 is the perspective view of the overall structure of the embodiment provided by the present invention;

Fig. 2 is the perspective view of the exhaust unit of the embodiment provided by the present invention;

Fig. 3 is the top view of the exhaust unit of the embodiment provided by the present invention;

Fig. 4 is a perspective view of the first clip arm of the embodiment provided by the present invention;

Fig. 5 is a perspective view of the second clip arm of the embodiment provided by the present invention;

Fig. 6 is a perspective view of the first rotating shaft and the second rotating shaft of the embodiment provided by the present invention;

Fig. 7 is a perspective view of the pre-clamping unit of the embodiment provided by the present invention.

Explanation of reference signs:

1-bracket, 2-first base plate, 3-first clamp arm, 31-first through hole, 4-second clamp arm, 41-second through hole, 5-first driving cylinder, 6-first gear , 7-second gear, 8-pivot seat, 9-first shaft, 91-first shaft section, 92-second shaft section, 10-second shaft, 11-cylinder slide module, 12-the first A splint, 13-the second splint, 14-limiting ring, 15-the second base plate, 16-the third clamping arm, 17-the fourth clamping arm, 18-the third driving cylinder, 19-transfer block, 20- The first connecting block, 21-the second connecting block, 22-the fourth drive cylinder, 23-guide rod, 24-guiding block, 25-connecting rod, 26-sector gear, 27-fork.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

As shown in Figures 1 to 7, the embodiment of the present invention provides a heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism, the exhaust unit, the pre-clamping unit and the transfer unit arranged on the bracket, the exhaust The unit and the pre-clamping unit are arranged on the side of the conveying line of the packaging bag, between the filling process of the packaging bag and the sewing process, and are used to discharge the air in the packaging bag.

The exhaust unit includes an exhaust clamp, a first driver and a second driver, wherein:

The exhaust clamp is disposed on the first substrate 2, and the exhaust clamp at least includes a first clamp arm 3 and a second clamp arm 4,

The first clamping arm 3 and/or the second clamping arm 4 moves with a first preset path, and when the first clamping arm 3 and/or the second clamping arm 4 moves to the end of the first preset path, the first clamping arm 3 abuts against the second clamp arm 4. In a feasible implementation, one of the first clamp arm 3 and the second clamp arm 4 is a movable part, and the other is a fixed part. For example, the first clamp arm 3 is The movable part, the second clamping arm 4 is a fixed part, so that after the first clamping arm 3 touches the packaging bag, the packaging bag is pushed to move in the direction of the second clamping arm 4 until the packaging bag is against the second clamping arm 4, The first clamping arm 3 continues to move along the first preset path until the first clamping arm 3 and the second clamping arm 4 clamp the packaging bag to exhaust air. In another feasible embodiment, the first clamping arm 3 and the second clamping arm 4 Both the second clamping arms 4 are movable parts, so that after the packaging bag reaches the predetermined position, the first clamping arm 3 and the second clamping arm 4 move together and apply force together to clamp the packaging bag, which takes less time and is more efficient and clamping The tightening force is greater, and compared with the former method, the air in the packaging bag is more easily and efficiently discharged. In the embodiment of the present application, both the first clamping arm 3 and the second clamping arm 4 are movable parts for illustration.

The first driving member is used to drive the first clamping arm 3 and/or the second clamping arm 4 to move along a first preset path, and the first preset path can be linearly approaching or moving away from each other, or rotationally approaching or moving away from each other , the force end of the first driver can only apply force to the first clamp arm 3 or the second clamp arm 4, and a force transmission member is provided between the first clamp arm 3 and the second clamp arm 4 to transmit the force, so The structural layout is more compact, the required parts are reduced, and the floor space is also reduced. Of course, two first driving parts can also be set at the same time, one of the first driving parts correspondingly exerts force on the first clamp arm 3, and the other first driving part A driving member correspondingly exerts force on the second clip arm 4 , which is not limited here.

The second driving member is used to drive the first base plate 2 to reciprocate along the first preset direction. Before the packaging bag reaches the preset position on the conveying line, the first base plate 2 is in the initial position, and the exhaust clamp is not stretched out. This avoids interference with the conveyance of the packaging bag. When the packaging bag reaches the preset position, the second driving member drives the first base plate 2 to move along the first preset direction, so that the exhaust clamping member is stretched out to discharge the packaging bag. gas operation.

In the embodiment provided by the present application, as shown in Fig. 2 and Fig. 3, the first driving member includes a first driving cylinder 5, a first gear 6 and a second gear 7, and the cylinder body of the first driving cylinder 5 is arranged on the second On a base plate 2 , the end of the piston rod of the first driving cylinder 5 is provided with a pivot seat 8 , and one end of the first clamping arm 3 is pivotally connected to the pivot seat 8 .

The first clamp arm 3 is rotatably arranged on the first base plate 2 with the first preset axis as the center line, and the first gear 6 is arranged on the first clamp arm 3, preferably by welding or bonding, etc., the first The axis of the gear 6 coincides with the first preset axis, and the expansion and contraction of the piston rod of the first drive cylinder 5 will drive the first clamp arm 3 to rotate around the first preset axis, so that the first clamp arm 3 approaches or moves away from bags.

The second clamp arm 4 is rotatably arranged on the first base plate 2 with the second preset axis as the center line, and the second gear 7 is arranged on the second clamp arm 4, preferably by welding or bonding. The axis of the gear 7 coincides with the second preset axis, and the second gear 7 meshes with the first gear 6. After the first drive cylinder 5 drives the first clamp arm 3 to rotate, the first gear 6 rotates synchronously. 6 and the meshing effect of the second gear 7, so that the second gear 7 and the second clamp arm 4 rotate synchronously, the rotation directions of the first clamp arm 3 and the second clamp arm 4 are opposite, and one of them rotates clockwise while the other rotates clockwise. Turn counterclockwise to clamp or release bag.

Referring to Fig. 4, Fig. 5 and Fig. 6, a first rotating shaft 9 and a second rotating shaft 10 are provided on the first substrate 2, wherein:

The first preset axis is formed on the axis of the first rotating shaft 9, the first clamp arm 3 is penetrated with a first through hole 31, the axis of the first through hole 31 coincides with the axis of the first gear 6, and the first rotating shaft 9 extends into the first through hole 31 to form a clearance fit. The first through hole 31 is set close to the pivotal end of the first clamp arm 3. When the piston rod of the first driving cylinder 5 expands and contracts, the small expansion and contraction of the piston rod can drive the first clamping arm 3. A larger rotation of the clamp arm 3 leads to higher work efficiency.

The second preset axis is formed on the axis of the second rotating shaft 10, the second clamp arm 4 is penetrated with a second through hole 41, the axis of the second through hole 41 coincides with the axis of the second gear 7, and the second rotating shaft 10 extends into the second through hole 41 to form a clearance fit, and the second through hole 41 is disposed at the end of the second clip arm 4 .

Further, as shown in FIG. 6 , the first shaft 9 and the second shaft 10 have the same structure, and both include a first shaft section 91 and a second shaft section 92 arranged coaxially, and the first shaft section 91 and the second shaft section 92 is preferably integrally formed. The first shaft section 91 is fixed on the first base plate 2. The diameter of the first shaft section 91 is larger than the diameter of the second shaft section 92. Between the first shaft section 91 and the second shaft section 92 A stepped surface is formed, and a stop ring 14 is sleeved on the second shaft section 92. When the second shaft section 92 is inserted into the first through hole 31, the bottom end of the first clamping arm 3 abuts against the stepped surface, and the first clamping arm 3 is limited by the stop ring 14 to limit the movement of the first clamp arm 3 in the axis direction of the first rotating shaft 9, so that the first clamp arm 3 can only rotate on the axis of the first rotating shaft 9, and the second clamp The cooperation between the arm 4 and the second rotating shaft 10 is similar, and will not be repeated here.

Referring to Fig. 2 and Fig. 3, the second driving member includes a cylinder slide module 11, the cylinder slide module 11 is arranged on the support 1, and the first substrate 2 is arranged on the slide inside the cylinder slide module 11 , the sliding table moves along the first preset direction to drive the first substrate 2 and the exhaust clamp on the first substrate 2 to move synchronously. The structure of the cylinder slide module 11 can refer to the existing structure in the prior art. This will not go into details, those skilled in the art can know that the second drive member can also be set as a drive motor, the drive motor drives the screw to rotate, the screw is screwed with a screw nut, and the first base plate 2 is fixed on the screw nut. , so that the first substrate 2 can also translate, which is not limited here.

In the embodiment provided by the application, in order to increase the contact area with the packaging bag, the first clamping arm 3 is provided with a first clamping plate 12, and the second clamping arm 4 is provided with a second clamping plate 13, preferably in a threaded connection. , to facilitate disassembly and assembly, when the first clamping arm 3 and/or the second clamping arm 4 move to the end of the first preset path, the first clamping plate 12 abuts against the first clamping plate 12, the first clamping plate 12 and the second clamping plate 12 The two splints 13 are plates of rigid material with a large surface area, which can maintain a larger area of contact with the packaging bag, so that the gas in the packaging bag can be discharged more efficiently. At the same time, the first splint 12 and the second splint 13 A number of ventilation holes are provided on the top to reduce the resistance encountered by the first splint 12 and the second splint 13 during the movement process, and can reduce the weight of the first splint 12 and the second splint 13 .

In a feasible implementation mode, by setting exhaust clamps on opposite sides of the packaging bag, the two exhaust clamps work synchronously to exhaust gas, so that the first clamp arm 3 and the second clamp arm can be structurally The clamp arm 4 is designed to be shorter, the opening and closing of the first clamp arm 3 and the second clamp arm 4 takes up less space, and can reduce the stroke of the second driving member to drive the first substrate 2 to move, and finally improve the exhaust efficiency. Taller, better exhaust.

In the embodiments provided by the present application, the pre-clamping unit includes:

The pre-clamping part is arranged on the second base plate 15. The pre-clamping part at least includes a third clamping arm 16 and a fourth clamping arm 17. The pre-clamping part is arranged above the exhaust clamping part, so that the packaging bag The pocket can be clamped by the third clamping arm 16 and the fourth clamping arm 17. Before the exhaust clamp clamps the packaging bag, the pre-clamping part first clamps the packaging bag to initially position and hang the packaging bag. In this embodiment, only the third clamping arm 16 and the fourth clamping arm 17 are used as an example for illustration. Those skilled in the art will know that multiple clamping arms can also be provided, for example, in the height direction of the packaging bag. A multi-layer clamp arm is arranged on the top to increase the clamping range and provide a more stable clamping force, which is not limited in this application.

The third clamping arm 16 and/or the fourth clamping arm 17 moves with a second preset path, and when the third clamping arm 16 and/or the fourth clamping arm 17 moves to the end of the second preset path, the third clamping arm 16 abuts against the fourth clamp arm 17. In a feasible implementation manner, one of the third clamp arm 16 and the fourth clamp arm 17 is a movable part, and the other is a fixed part. For example, the third clamp arm 16 is The movable part, the fourth clamping arm 17 is a fixed part, so that after the third clamping arm 16 touches the packaging bag, the packaging bag is pushed to move in the direction of the fourth clamping arm 17 until the packaging bag is against the fourth clamping arm 17, The third clamping arm 16 continues to move along the second preset path until the third clamping arm 16 and the fourth clamping arm 17 clamp the packaging bag. In another feasible embodiment, the third clamping arm 16 and the fourth clamping arm 16 The clamping arms 17 are all movable parts, so that after the packaging bag reaches the predetermined position, the third clamping arm 16 and the fourth clamping arm 17 move together to apply force together to clamp the packaging bag, which takes less time, is more efficient and has a higher clamping force. Even more, in the embodiment of the present application, the third clamping arm 16 and the fourth clamping arm 17 are both movable parts for illustration.

The third driving member is used to drive the third clamping arm 16 and/or the fourth clamping arm 17 to move along the second preset path, and the second preset path can be linearly approaching or moving away from each other, or rotationally approaching or moving away from each other , the force application end of the third driver can only apply force to the third clamp arm 16 or the fourth clamp arm 17, and a force transmission member is provided between the third clamp arm 16 and the fourth clamp arm 17 to transmit the force, so The structural layout is more compact, the required parts are reduced, and the floor space is also reduced. Of course, two third driving parts can also be set at the same time, one of the third driving parts correspondingly exerts force on the third clamping arm 16, and the other third driving part The three driving members apply force to the fourth clip arm 17 correspondingly, which is not limited here.

The fourth driving member is used to drive the second base plate 15 to move back and forth along the second preset direction. Before the packaging bag reaches the preset position of the conveying line, the second base plate 15 is in the initial position, and the pre-clamping member is not stretched out, so that To avoid interference with the delivery of the packaging bag, when the packaging bag reaches the preset position, the fourth driving member drives the second base plate 15 to move along the first preset direction, so that the pre-clamping member extends out to clamp the packaging bag.

Referring to FIG. 7 , both the third clamping arm 16 and the fourth clamping arm 17 are rotatably connected to the second base plate 15 , and the third clamping arm 16 and the fourth clamping arm 17 are disposed opposite to each other.

The third driver includes a third drive cylinder 18, an adapter block 19, a first connection block 20 and a second connection block 21, the third drive cylinder 18 is arranged on the second base plate 15, and the end of the piston rod of the third drive cylinder 18 Connect with the transfer block 19, one end of the transfer block 19 is connected with one end of the first connection block 20, the other end of the first connection block 20 is connected with the third clamping arm 16, and the other end of the transfer block 19 is connected with the second connection block. One end of the block 21 is connected, and the other end of the second connecting block 21 is connected with the fourth clamping arm 17 .

The piston rod of the third driving cylinder 18 expands and contracts, and drives the third clamping arm 16 and the fourth clamping arm 17 to rotate to approach or move away from each other, thereby clamping or releasing the packaging bag.

Further, the fourth driving member includes a fourth driving cylinder 22, a guide rod 23 and a guide block 24 arranged on the bracket 1, two guide rods 23 and two guide blocks 24 are provided, and the two guide rods 23 are arranged symmetrically on the first On the opposite sides of the second base plate 15, the extension direction of the guide rod 23 is parallel to the second preset direction, and the guide block 24 is slidably fitted on the guide rod 23, and the guide block 24 is connected with the second base plate 15, and the fourth driving cylinder 22 The end of the piston rod is connected with one of the guide blocks 24. The piston rod of the fourth driving cylinder 22 expands and contracts, and drives the guide block 24 to slide along the guide rod 23, so that the second substrate 15 approaches or moves away from the conveying line of the packaging bag.

In the embodiment provided by this application, there are two brackets 1, exhaust unit and pre-clamping unit, symmetrically arranged on opposite sides of the conveying line of the packaging bag, two transfer units, two transfer units Arranged sequentially along the conveying direction of the conveying line of the packaging bag, the transfer unit includes a connecting rod 25, a sector gear 26 and two swing rods 27, the bottom ends of the two swing rods 27 are respectively connected to the two brackets 1, and the connecting rod 25 is connected to Two swing rods 27, the sector gear 26 is arranged on the connecting rod 25, the sector gear 26 meshes with the drive gear (not shown), the drive gear rotates, and drives the sector gear 26 to rotate clockwise, thereby driving the support 1 as a whole on the conveying line During the movement, during the movement, the pre-clamping part and the exhausting clamping part always clamp the packaging bag. The exhausting clamping part can improve the clamping stability during the transfer process while degassing, and the package after degassing The bag is transported to the next station, and then the driving gear rotates counterclockwise, and the transfer unit returns the bracket 1 to the initial position, and the pre-clamping part and the exhausting clamping part also return to their positions.

The structure, features and effects of the present invention have been described in detail above based on the embodiments shown in the drawings. The above descriptions are only preferred embodiments of the present invention, but the present invention does not limit the scope of implementation as shown in the drawings. Changes made to the idea of the present invention, or modifications to equivalent embodiments that are equivalent changes, and still within the spirit covered by the description and illustrations, shall be within the protection scope of the present invention.

Claims (9)

1. A heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism, characterized in that it includes an exhaust unit, a pre-clamp unit and a transfer unit arranged on the bracket, and the pre-clamp unit is arranged on the row above the air unit, where: The exhaust unit includes: The exhaust clip is arranged on the first substrate, the exhaust clip includes at least a first clip arm and a second clip arm, the first clip arm and/or the second clip arm The preset path moves, and when the first clamp arm and/or the second clamp arm moves to the end of the first preset path, the first clamp arm abuts against the second clamp arm; a first driving member, configured to drive the first clamping arm and/or the second clamping arm to move along the first preset path; a second driving member, configured to drive the first substrate to reciprocate along a first preset direction; The pre-clamping unit includes: The pre-clamping part is arranged on the second substrate, the pre-clamping part at least includes a third clamping arm and a fourth clamping arm, and the third clamping arm and/or the fourth clamping arm are set in a second preset path movement, when the third clamping arm and/or the fourth clamping arm moves to the end of the second preset path, the third clamping arm abuts against the fourth clamping arm; a third driving member, configured to drive the first clamping arm and/or the second clamping arm to move along the second preset path; The fourth driving member is used to drive the second substrate to reciprocate along the second preset direction. 2. The heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism according to claim 1, characterized in that: The first driving member includes a first driving cylinder, a first gear and a second gear, the cylinder body of the first driving cylinder is arranged on the first base plate, and the end of the piston rod of the first driving cylinder is provided with a pivot seat, one end of the first clip arm is pivotally connected to the pivot seat; The first clamping arm is rotatably arranged on the first substrate with the first preset axis as the center line, the first gear is arranged on the first clamping arm, and the axis of the first gear and the first preset axes coincide; The second clamping arm is rotatably disposed on the first base plate with the second preset axis as the center line, the second gear is disposed on the second clamping arm, and the axis of the second gear and The second preset axis coincides with each other, and the second gear meshes with the first gear. 3. The heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism according to claim 2, characterized in that: the first base plate is provided with a first rotating shaft and a second rotating shaft, wherein: The first preset axis is formed on the axis of the first rotating shaft, a first through hole is formed through the first clip arm, and the first rotating shaft extends into the first through hole to form a clearance fit ; The second preset axis is formed on the axis of the second rotating shaft, a second through hole is formed through the second clip arm, and the second rotating shaft extends into the second through hole to form a clearance fit . 4. The heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism according to claim 1, characterized in that: the second driving part includes a cylinder slide module, and the first base plate is set on the cylinder slide module. on the sliding table in the table module. 5. The heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism according to claim 1, characterized in that: the first clamping arm is provided with a first clamping plate, and the second clamping arm is provided with a second clamping plate. A clamping plate, when the first clamping arm and/or the second clamping arm moves to the end of the first preset path, the first clamping plate abuts against the first clamping plate. 6. The heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism according to claim 5, characterized in that: the first splint and the second splint are made of rigid materials, and the first splint and the second splint The second splint is provided with a plurality of ventilation holes. 7. The heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism according to claim 1, characterized in that: Both the third clamping arm and the fourth clamping arm are rotatably connected to the second base plate; The third drive member includes a third drive cylinder, an adapter block, a first connection block and a second connection block, the third drive cylinder is arranged on the second base plate, and the piston rod of the third drive cylinder The end is connected to the transfer block, one end of the transfer block is connected to one end of the first connection block, the other end of the first connection block is connected to the third clamping arm, and the transfer block The other end of the second connecting block is connected to one end of the second connecting block, and the other end of the second connecting block is connected to the fourth clamping arm. 8. The heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism according to claim 7, characterized in that: the fourth driving member includes a fourth driving cylinder, a guide rod and a guide block arranged on the bracket , there are two guide rods and two guide blocks, the two guide rods are symmetrically arranged on opposite sides of the second base plate, and the extension direction of the guide rods is the same as the second preset direction arranged in parallel, the guide block is slidably fitted on the guide rod, the guide block is connected to the second base plate, and the end of the piston rod of the fourth driving cylinder is connected to one of the guide blocks. 9. The heavy-duty powder packaging machine linkage mechanical exhaust and transfer mechanism according to claim 1, characterized in that: the bracket, the exhaust unit and the pre-clamping unit are provided with two, symmetrically arranged On the opposite sides of the conveying line of the packaging bag, two transfer units are provided, and the two transfer units are arranged in sequence along the conveying direction of the conveying line of the packaging bag. The transfer unit includes a connecting rod, Sector gear and two swing rods, the bottom ends of the two swing rods are respectively connected to the two brackets, the connecting rod connects the two swing rods, and the sector gear is arranged on the connecting rods .

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