Rapid clamping device for powder container bag

Abstract

The invention discloses a powder container bag rapid clamping device, and relates to the technical field of clamping devices, the powder container bag rapid clamping device comprises a driving mechanism, the driving mechanism comprises a connecting shell and a second wedge block, the upper portion of the connecting shell is fixedly connected with a driving air cylinder, and a first wedge block is arranged in the connecting shell. A first wedge-shaped block is driven to move upwards along the interior of a connecting shell through contraction of a driving air cylinder, at the moment, a first limiting block on the side face of the first wedge-shaped block moves upwards along a first limiting groove in the side face of a second wedge-shaped block, and the first limiting block drives two second wedge-shaped blocks in the connecting shell to get close to each other; and in the process that the second wedge-shaped blocks draw close to each other, the two moving blocks are driven to draw close to each other, so that the mounting mechanism and the clamping mechanism at the bottom are driven to move, a bag opening is clamped through the clamping mechanism, the two moving blocks are driven to move through one driving air cylinder, and the moving synchronism of the moving blocks is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of clamping devices, in particular to a quick clamping device for a powder container bag. Background Art

[0002] Nowadays, when using plastic bags to package granular materials, the bags often need to be vacuumed after filling to extend the shelf life of the granular materials and facilitate the shaping of the bags. It is a common industrial operation process to vacuum the powder container bag after filling and then quickly clamp it with a quick clamping device. The bag mouth is clamped by a quick clamping device to keep the environment inside the bag sealed to prevent powder leakage, air entry or external contamination.

[0003] For example, announcement number: CN216301662U discloses "a clamping mechanism for a packaging bag and a clamping and vacuuming device for a packaging bag", which includes a seat plate, a guide rail is provided under the seat plate, a left slider and a right slider are matched on the guide rail, a left bracket is fixedly connected under the left slider, a left clamping block is fixedly connected to the left bracket, a right bracket is fixedly connected under the right slider, a right clamping block is fixedly connected to the right bracket, the left slider is connected to one end of the driving cylinder, and the right slider is connected to the other end of the driving cylinder; an axle seat is fixedly provided between the left slider and the right slider under the seat plate, and a movable pin is installed on the axle seat, the axial direction of the pin is perpendicular to the guide rail, one end of the pin is connected to the middle part of a connecting rod, the left end of the connecting rod is hinged to one end of the left pull rod, the other end of the left pull rod is hinged to the left slider, the right end of the connecting rod is hinged to one end of the right pull rod, and the other end of the right pull rod is hinged to the right slider.

[0004] However, in the prior art, when clamping the bag opening, two driving cylinders are used to drive the two sliders to move along the slide rails, thereby driving the clamping block to clamp and fix the bag opening. In actual operation, when the two cylinders are moving synchronously, they will be affected by the stability of the air source pressure, the accuracy and stability of the control system, etc., which will affect the synchronization of the operation between the two cylinders. Although the slide rails and sliders are used to limit the movement of the clamping blocks to ensure that the two clamping blocks are in place synchronously as much as possible, due to the synchronization problem of the two cylinders, when one cylinder produces telescopic movement, the telescopic movement of the other cylinder lags behind, resulting in the slider sliding along the slide rail. The slider has a tendency to rotate on the surface of the slide rail, resulting in an increase in the friction between the slider and the slide rail, and at the same time causing the stability of the clamping block movement and the stability of clamping the bag opening to deteriorate. Summary of the invention

[0005] The object of the present invention is to provide a quick clamping device for powder container bags to solve the problem that the two cylinders proposed in the above background technology will be affected by the stability of the air source pressure, the accuracy and stability of the control system, etc. when performing synchronous movement, which will affect the synchronization of the operation between the two cylinders. Although there are slide rails and sliders to limit the movement of the clamping blocks to ensure that the two clamping blocks are in place synchronously as much as possible, due to the synchronization problem of the two cylinders, when the slider slides along the slide rail, the slider tends to rotate on the surface of the slide rail, resulting in an increase in the friction between the slider and the slide rail, and at the same time causing the stability of the movement of the clamping block and the stability of the bag opening clamping to deteriorate.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quick clamping device for a powder container bag, comprising a driving mechanism, the driving mechanism comprising a connecting shell and a No. 2 wedge block, the upper part of the connecting shell is fixedly connected with a driving cylinder, and a No. 1 wedge block is arranged inside the connecting shell, the driving cylinder is fixedly connected to the upper part of the No. 1 wedge block, the side of the No. 1 wedge block is fixedly connected to the No. 1 limit block, the No. 2 wedge block is slidably connected to the inside of the connecting shell, and the No. 2 wedge block is slidably connected to the side of the No. 1 wedge block, the bottom of the No. 2 wedge block is fixedly connected with a moving block, the moving block is slidably connected to the bottom of the connecting shell, the bottom of the moving block is fixedly connected with a mounting mechanism, the side of the mounting mechanism is installed with a clamping mechanism, the clamping mechanism is installed and fixed with the moving block through the mounting mechanism, and the clamping mechanism is used to clamp the bag opening.

[0007] Preferably, a No. 1 limiting groove is provided on the side surface of the No. 2 wedge-shaped block, and the No. 1 limiting block is located inside the No. 1 limiting groove and is slidably connected to the No. 2 wedge-shaped block.

[0008] Preferably, a No. 2 limiting block is fixedly connected to the side of the No. 2 wedge block, a No. 2 limiting groove is provided on the inner wall of the connecting shell, and the No. 2 limiting block is located inside the No. 2 limiting groove and is slidably connected to the connecting shell.

[0009] Preferably, a limiting rod is fixedly connected to the upper inner wall of the connecting shell, a limiting hole is arranged on the surface of the No. 1 wedge block, and the limiting rod is located inside the limiting hole and is slidably plugged into the No. 1 wedge block.

[0010] Preferably, a No. 1 telescopic rod is fixedly connected to the side of the No. 2 wedge block, one end of the No. 1 telescopic rod is fixedly connected to the inside of the connecting shell, and a No. 1 spring is provided on the surface of the No. 1 telescopic rod, one end of the No. 1 spring is fixedly connected to the connecting shell, and the other end of the No. 1 spring is fixedly connected to the side of the No. 2 wedge block.

[0011] Preferably, the mounting mechanism includes a No. 1 card plate, the No. 1 card plate is fixedly connected to the bottom of the moving block, and a No. 1 plug plate is plugged into the inside of the No. 1 card plate, a connecting frame is fixedly connected to the side of the No. 1 card plate, a pull rod is plugged into the surface of the connecting frame, one end of the pull rod is fixedly connected to a No. 1 connecting plate, a No. 3 wedge block is fixedly connected to the side of the No. 1 connecting plate, the No. 3 wedge block is plugged into the No. 1 plug plate, a No. 3 spring is arranged on the surface of the pull rod, one end of the No. 3 spring is fixedly connected to the connecting frame, and the other end of the No. 3 spring is fixedly connected to the No. 1 connecting plate.

[0012] Preferably, a No. 2 telescopic rod is fixedly connected inside the No. 1 card plate, one end of the No. 2 telescopic rod is fixedly connected to a push plate, the push plate is in contact with the surface of the No. 1 plug plate, a No. 2 spring is provided on the surface of the No. 2 telescopic rod, one end of the No. 2 spring is fixedly connected to the No. 1 card plate, and the other end of the No. 2 spring is fixedly connected to the surface of the push plate.

[0013] Preferably, the clamping mechanism includes a No. 2 connecting plate, the No. 2 connecting plate is fixedly connected to the No. 1 plug plate, and a No. 3 telescopic rod is fixedly connected to the side of the No. 2 connecting plate, one end of the No. 3 telescopic rod is fixedly connected to the No. 2 clamping plate, and a No. 4 spring is arranged on the surface of the No. 3 telescopic rod, one end of the No. 4 spring is fixedly connected to the No. 2 connecting plate, and the other end of the No. 4 spring is fixedly connected to the No. 2 clamping plate.

[0014] Preferably, a No. 2 plugging plate is inserted inside the No. 2 card plate, a clamping plate is fixedly connected to the side of the No. 2 plugging plate, and a rubber pad is fixedly connected to the side of the clamping plate.

[0015] Preferably, a connecting sleeve is fixedly connected to the upper part of the No. 2 card plate, a threaded push rod is threadedly connected to the connecting sleeve, a push block is fixedly connected to the bottom of the threaded push rod, the push block is embedded in the connecting sleeve, and the push block fits with the top of the No. 2 plug plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the contraction of the driving cylinder drives the No. 1 wedge block to move upward along the inside of the connecting shell. At this time, the No. 1 limit block on the side of the No. 1 wedge block moves upward along the No. 1 limit groove on the side of the No. 2 wedge block, and the No. 1 limit block drives the two No. 2 wedge blocks inside the connecting shell to move closer to each other. In the process of the No. 2 wedge blocks moving closer to each other, the two moving blocks are driven to move closer to each other, thereby driving the installation mechanism and the clamping mechanism at the bottom to move, and the bag opening is clamped by the clamping mechanism. The two moving blocks are driven to move by a driving cylinder to ensure the synchronization of the movement of the moving blocks, thereby improving the stability of the clamping mechanism when clamping the bag opening.

[0017] 2. In the present invention, a clamping mechanism and an installation mechanism with matching lengths are selected for installation and fixation according to the different lengths of the bag openings to be clamped. The No. 1 plug plate is plugged into the No. 1 card plate to facilitate installation and fixation of the clamping mechanism. During the process of plugging the No. 1 plug plate along the No. 1 card plate, the No. 3 wedge block is pushed toward the outside of the No. 1 card plate, and the No. 3 spring is compressed. When the No. 1 plug plate is plugged into place, the No. 3 spring recovers its deformation and pushes the No. 1 connecting plate and the No. 3 wedge block. The No. 1 plug plate is plugged into the No. 1 wedge block to limit and fix the No. 1 plug plate.

[0018] 3. In the present invention, during the process of inserting the No. 1 plug plate into the No. 1 card plate, the push plate will push the No. 2 telescopic rod and the No. 2 spring to compress the No. 2 telescopic rod and the No. 2 spring. When the clamping mechanism is replaced, the pull rod is pulled to pull the No. 3 wedge block out of the No. 1 plug plate. At this time, the No. 2 telescopic rod and the No. 2 spring restore their deformation to push the push plate and the No. 1 plug plate downward, making it easy to remove the No. 1 plug plate from the No. 1 card plate and replace the clamping mechanism.

[0019] 4. In the present invention, when the moving block drives the installation mechanism to move closer, the No. 1 plug plate drives the rubber pad in the clamping mechanism to move closer to each other to clamp the bag opening. When the rubber pad fits the bag opening, the No. 2 connecting plate continues to push the rubber pads to move closer to each other. At this time, the No. 3 telescopic rod and the No. 4 spring are squeezed, and the bag opening is clamped by the reaction force of the No. 3 telescopic rod and the No. 4 spring. The clamping force of the bag opening is steadily increased by the No. 3 telescopic rod and the No. 4 spring to avoid an instantaneous increase in the pressure on the bag opening, which causes damage to the bag opening. The pushing block is pushed downward by rotating the threaded pushing rod, and the No. 2 plug plate is pushed out from the inside of the No. 2 clamping plate by the pushing block, so that the No. 2 plug plate, the clamping plate and the rubber pad are easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a first three-dimensional structure of a quick clamping device for a powder container bag of the present invention; Figure 2 It is a schematic diagram of the internal three-dimensional structure of the connecting shell in a quick clamping device for a powder container bag of the present invention; Figure 3 It is a schematic diagram of the cross-section front view of the structure of a wedge block No. 1 in a quick clamping device for a powder container bag of the present invention; Figure 4 It is a schematic diagram of the changing process of a quick clamping device for a powder container bag of the present invention; Figure 5 It is a schematic side view of the structure of a quick clamping device for a powder container bag of the present invention; Figure 6 It is a second three-dimensional structural schematic diagram of a quick clamping device for a powder container bag of the present invention; Figure 7The present invention is a schematic diagram of a cross-sectional front view of a mounting mechanism and a clamping mechanism in a quick clamping device for a powder container bag.

[0021] In the figure: 1. driving mechanism; 11. connecting shell; 12. driving cylinder; 13. wedge block No. 1; 14. stop block No. 1; 15. wedge block No. 2; 16. stop slot No. 1; 17. stop block No. 2; 18. stop hole; 19. stop rod; 110. telescopic rod No. 1; 111. spring No. 1; 112. stop slot No. 2; 113. moving block; 2. mounting mechanism; 21. card board No. 1; 22. plug board No. 1; 23. Connecting frame; 24, wedge block No. 3; 25, push plate; 26, telescopic rod No. 2; 27, spring No. 2; 28, pull rod; 29, connecting plate No. 1; 210, spring No. 3; 3, clamping mechanism; 31, connecting plate No. 2; 32, telescopic rod No. 3; 33, spring No. 4; 34, clamping plate No. 2; 35, plug plate No. 2; 36, splint; 37, rubber pad; 38, connecting sleeve; 39, threaded push rod; 310, push block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Reference Figure 1-Figure 7 As shown: a powder container bag quick clamping device, including a driving mechanism 1, the driving mechanism 1 includes a connecting shell 11 and a No. 2 wedge block 15, the upper part of the connecting shell 11 is fixedly connected with a driving cylinder 12, and a No. 1 wedge block 13 is arranged inside the connecting shell 11, the driving cylinder 12 is fixedly connected to the upper part of the No. 1 wedge block 13, the side of the No. 1 wedge block 13 is fixedly connected to a No. 1 limit block 14, the No. 2 wedge block 15 is slidably connected to the inside of the connecting shell 11, and the No. 2 wedge block 15 is slidably connected to the side of the No. 1 wedge block 13, the bottom of the No. 2 wedge block 15 is fixedly connected with a moving block 113, the moving block 113 is slidably connected to the bottom of the connecting shell 11, the bottom of the moving block 113 is fixedly connected with a mounting mechanism 2, the side of the mounting mechanism 2 is installed with a clamping mechanism 3, the clamping mechanism 3 is installed and fixed with the moving block 113 through the mounting mechanism 2, and the clamping mechanism 3 is used to clamp the bag mouth; A No. 1 limiting groove 16 is provided on the side of the No. 2 wedge block 15, the No. 1 limiting block 14 is located inside the No. 1 limiting groove 16 and is slidably connected to the No. 2 wedge block 15, and a No. 2 limiting block 17 is fixedly connected to the side of the No. 2 wedge block 15. A No. 2 limiting groove 112 is provided on the inner wall of the connecting shell 11, and the No. 2 limiting block 17 is located inside the No. 2 limiting groove 112 and is slidably connected to the connecting shell 11. A limiting rod 19 is fixedly connected to the upper part of the inner wall of the connecting shell 11. The No. 1 wedge block 13 is provided on the inner wall of the connecting shell 11. A limiting hole 18 is provided on the surface, a limiting rod 19 is located inside the limiting hole 18 and is slidably plugged into the No. 1 wedge block 13, a No. 1 telescopic rod 110 is fixedly connected to the side of the No. 2 wedge block 15, one end of the No. 1 telescopic rod 110 is fixedly connected to the inside of the connecting shell 11, and a No. 1 spring 111 is provided on the surface of the No. 1 telescopic rod 110, one end of the No. 1 spring 111 is fixedly connected to the connecting shell 11, and the other end of the No. 1 spring 111 is fixedly connected to the side of the No. 2 wedge block 15.

[0024] In the embodiment, when the bag opening is clamped and fixed, the contraction of the driving cylinder 12 drives the No. 1 wedge block 13 to move upward along the inside of the connecting shell 11. At this time, the No. 1 limiting block 14 on the side of the No. 1 wedge block 13 moves upward along the No. 1 limiting groove 16 on the side of the No. 2 wedge block 15. The No. 1 limiting block 14 drives the two No. 2 wedge blocks 15 inside the connecting shell 11 to move closer to each other. In the process of the No. 2 wedge blocks 15 moving closer to each other, the two moving blocks 113 are driven to move closer to each other, thereby driving the installation mechanism 2 and the clamping mechanism 3 at the bottom to move. The bag opening is clamped by the clamping mechanism 3. The two moving blocks 113 are driven to move by a driving cylinder 12 to ensure the synchronization of the movement of the moving blocks 113, thereby improving the stability of the clamping mechanism 3 when clamping the bag opening. In the process of driving the cylinder 12 to extend and retract to drive the No. 1 wedge block 13 to move up and down, the No. 1 wedge block 13 is limited by the limit rod 19 and the limit hole 18, so as to improve the stability of the movement of the No. 1 wedge block 13, and the No. 2 limit block 17 and the No. 2 limit groove 112 are used to limit the movement of the No. 2 wedge block 15, so as to improve the stability of the No. 2 wedge block 15 when moving, and the No. 1 telescopic rod 110 and the No. 1 spring 111 are extended and deformed to limit the movement of the No. 2 wedge block 15, so as to further improve the stability of the No. 2 wedge block 15 when moving.

[0025] Embodiment 2: According to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the mounting mechanism 2 includes a No. 1 card plate 21, which is fixedly connected to the bottom of the moving block 113, and a No. 1 plug plate 22 is inserted inside the No. 1 card plate 21, a connecting frame 23 is fixedly connected to the side of the No. 1 card plate 21, and a pull rod 28 is inserted on the surface of the connecting frame 23, and a No. 1 connecting plate 29 is fixedly connected to one end of the pull rod 28, and a No. 3 wedge block 24 is fixedly connected to the side of the No. 1 connecting plate 29, and the No. 3 wedge block 24 is plugged with the No. 1 plug plate 22, and a No. 3 spring 210 is arranged on the surface of the pull rod 28. One end of the No. 3 spring 210 is fixedly connected to the connecting frame 23, and the other end of the No. 3 spring 210 is fixedly connected to the No. 1 connecting plate 29. A No. 2 telescopic rod 26 is fixedly connected inside the No. 1 card plate 21. One end of the No. 2 telescopic rod 26 is fixedly connected to a pushing plate 25. The pushing plate 25 is in contact with the surface of the No. 1 plug plate 22. A No. 2 spring 27 is provided on the surface of the No. 2 telescopic rod 26. One end of the No. 2 spring 27 is fixedly connected to the No. 1 card plate 21, and the other end of the No. 2 spring 27 is fixedly connected to the surface of the pushing plate 25.

[0026] In this embodiment, the clamping mechanism 3 and the mounting mechanism 2 with the appropriate length are selected according to the different lengths of the bag opening to be clamped, and the clamping mechanism 3 is conveniently installed and fixed by plugging the No. 1 plug plate 22 with the No. 1 card plate 21. In the process of plugging the No. 1 plug plate 22 along the No. 1 card plate 21, the No. 3 wedge block 24 is pushed toward the outside of the No. 1 card plate 21, and the No. 3 spring 210 is compressed. When the No. 1 plug plate 22 is plugged in place, the No. 3 spring 210 recovers its deformation and pushes the No. 1 connecting plate 29 and the No. 3 wedge block 24. The No. 1 plug plate 22 is plugged in by the No. 3 wedge block 24, so that the No. 1 plug plate 22 is limited and fixed. During the process of inserting the No. 1 plug plate 22 into the No. 1 card plate 21, the pushing plate 25 will push the No. 2 telescopic rod 26 and the No. 2 spring 27, so that the No. 2 telescopic rod 26 and the No. 2 spring 27 are compressed. When the clamping mechanism 3 is replaced, the pull rod 28 is pulled to pull the No. 3 wedge block 24 out of the No. 1 plug plate 22. At this time, the No. 2 telescopic rod 26 and the No. 2 spring 27 restore their deformation and push the pushing plate 25 and the No. 1 plug plate 22 to move downward, making it easy to remove the No. 1 plug plate 22 from the No. 1 card plate 21 and replace the clamping mechanism 3.

[0027] Embodiment 3: According to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the clamping mechanism 3 includes a No. 2 connecting plate 31, the No. 2 connecting plate 31 is fixedly connected to the No. 1 plug plate 22, and a No. 3 telescopic rod 32 is fixedly connected to the side of the No. 2 connecting plate 31, one end of the No. 3 telescopic rod 32 is fixedly connected to the No. 2 clamping plate 34, and a No. 4 spring 33 is arranged on the surface of the No. 3 telescopic rod 32, one end of the No. 4 spring 33 is fixedly connected to the No. 2 connecting plate 31, and the other end of the No. 4 spring 33 is fixedly connected to the No. 2 clamping plate 34, a No. 2 plug plate 35 is inserted into the No. 2 clamping plate 34, a splint 36 is fixedly connected to the side of the No. 2 plug plate 35, a rubber pad 37 is fixedly connected to the side of the splint 36, a connecting sleeve 38 is fixedly connected to the upper part of the No. 2 clamping plate 34, a threaded push rod 39 is threadedly connected to the connecting sleeve 38, a push block 310 is fixedly connected to the bottom of the threaded push rod 39, the push block 310 is embedded in the connecting sleeve 38, and the push block 310 is fitted with the top of the No. 2 plug plate 35.

[0028] In this embodiment, when the moving block 113 drives the installation mechanism 2 to move closer, the No. 1 plug plate 22 drives the rubber pad 37 in the clamping mechanism 3 to move closer to each other to clamp the bag opening. When the rubber pad 37 fits the bag opening, the No. 2 connecting plate 31 continues to push the rubber pad 37 to move closer to each other. At this time, the No. 3 telescopic rod 32 and the No. 4 spring 33 are squeezed, and the bag opening is clamped by the reaction force of the No. 3 telescopic rod 32 and the No. 4 spring 33. The clamping force of the bag opening is stably increased by the No. 3 telescopic rod 32 and the No. 4 spring 33, so as to avoid the pressure of the bag opening rising instantly and causing the bag opening to be damaged. When the rubber pad 37 ages during long-term use, the threaded push rod 39 is rotated to push the push block 310 downward, and the second plug plate 35 is pushed out from the inside of the second clamping plate 34 by the push block 310, so that the second plug plate 35, the clamping plate 36 and the rubber pad 37 can be replaced easily.

[0029] The use method and working principle of the device are as follows: when the bag opening is clamped and fixed, the contraction of the driving cylinder 12 drives the No. 1 wedge block 13 to move upward along the inside of the connecting shell 11. At this time, the No. 1 limit block 14 on the side of the No. 1 wedge block 13 moves upward along the No. 1 limit groove 16 on the side of the No. 2 wedge block 15. The No. 1 limit block 14 drives the two No. 2 wedge blocks 15 inside the connecting shell 11 to move closer to each other. In the process of the No. 2 wedge blocks 15 moving closer to each other, the two moving blocks 113 are driven to move closer to each other, thereby driving the installation mechanism 2 and the clamping mechanism 3 at the bottom to move. The bag opening is clamped by the clamping mechanism 3. The two moving blocks 113 are driven to move by a driving cylinder 12 to ensure the synchronization of the movement of the moving blocks 113. In the process of the driving cylinder 12 extending and retracting to drive the first wedge block 13 to move up and down, the first wedge block 13 is limited by the cooperation of the limiting rod 19 and the limiting hole 18, and the movement of the second wedge block 15 is limited by the cooperation of the second limiting block 17 and the second limiting groove 112; According to the different lengths of the bag openings to be clamped, the clamping mechanism 3 and the mounting mechanism 2 with matching lengths are selected for installation and fixation, and the No. 1 plug plate 22 is plugged into the No. 1 card plate 21. During the process of the No. 1 plug plate 22 being plugged into the No. 1 card plate 21, the No. 3 wedge block 24 is pushed toward the outside of the No. 1 card plate 21, and the No. 3 spring 210 is compressed. When the No. 1 plug plate 22 is plugged into place, the No. 3 spring 210 recovers its deformation and pushes the No. 1 connecting plate 29 and the No. 3 wedge block 24. The No. 3 wedge block 24 is plugged into the No. 1 plug plate 22 to limit and fix the No. 1 plug plate 22. When the No. 1 plug plate 22 is inserted into the No. 1 clamping plate 21, the push plate 25 pushes the No. 2 telescopic rod 26 and the No. 2 spring 27, so that the No. 2 telescopic rod 26 and the No. 2 spring 27 are compressed. When the clamping mechanism 3 is replaced, the pull rod 28 is pulled to pull the No. 3 wedge block 24 out of the No. 1 plug plate 22. At this time, the No. 2 telescopic rod 26 and the No. 2 spring 27 restore their deformation and push the push plate 25 and the No. 1 plug plate 22 to move downward. When the moving block 113 drives the mounting mechanism 2 to move closer, the No. 1 plug plate 22 drives the rubber pad 37 in the clamping mechanism 3 to move closer to each other to clamp the bag opening. When the rubber pad 37 fits the bag opening, the No. 2 connecting plate 31 continues to push the rubber pad 37 to move closer to each other. At this time, the No. 3 telescopic rod 32 and the No. 4 spring 33 are squeezed, and the bag opening is clamped by the reaction force of the No. 3 telescopic rod 32 and the No. 4 spring 33. The clamping force of the bag opening is stably increased by the No. 3 telescopic rod 32 and the No. 4 spring 33. When the rubber pad 37 ages during long-term use, the push block 310 is pushed downward by rotating the threaded push rod 39 , and the second plug plate 35 is pushed out from the inside of the second clamping plate 34 by the push block 310 .

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick clamping device for powder container bags, characterized in that: The invention comprises a driving mechanism (1), wherein the driving mechanism (1) comprises a connecting shell (11) and a second wedge block (15), wherein the upper portion of the connecting shell (11) is fixedly connected to a driving cylinder (12), and a first wedge block (13) is arranged inside the connecting shell (11), the driving cylinder (12) is fixedly connected to the upper portion of the first wedge block (13), a first limit block (14) is fixedly connected to the side of the first wedge block (13), the second wedge block (15) is slidably connected to the inside of the connecting shell (11), and the second wedge block (15) is slidably connected to the inside of the connecting shell (11), and the second wedge block (13) is fixedly connected to the upper portion of the first wedge block (13). The wedge block (15) is slidably connected to the side of the first wedge block (13); the bottom of the second wedge block (15) is fixedly connected to a moving block (113); the moving block (113) is slidably connected to the bottom of the connecting shell (11); the bottom of the moving block (113) is fixedly connected to a mounting mechanism (2); a clamping mechanism (3) is installed on the side of the mounting mechanism (2); the clamping mechanism (3) is installed and fixed to the moving block (113) through the mounting mechanism (2); and the clamping mechanism (3) is used to clamp the bag opening.

2. A powder container bag quick clamping device according to claim 1, characterized in that: A first limiting groove (16) is provided on the side of the second wedge-shaped block (15), and the first limiting block (14) is located inside the first limiting groove (16) and is slidably connected to the second wedge-shaped block (15).

3. A powder container bag quick clamping device according to claim 1, characterized in that: A second limiting block (17) is fixedly connected to the side of the second wedge block (15), a second limiting groove (112) is provided on the inner wall of the connecting shell (11), and the second limiting block (17) is located inside the second limiting groove (112) and is slidably connected to the connecting shell (11).

4. A powder container bag quick clamping device according to claim 1, characterized in that: A limit rod (19) is fixedly connected to the upper inner wall of the connection housing (11), a limit hole (18) is provided on the surface of the first wedge block (13), and the limit rod (19) is located inside the limit hole (18) and is slidably plugged into the first wedge block (13).

5. The powder container bag quick clamping device according to claim 1, characterized in that: A No. 1 telescopic rod (110) is fixedly connected to the side of the No. 2 wedge block (15), one end of the No. 1 telescopic rod (110) is fixedly connected to the inside of the connecting shell (11), and a No. 1 spring (111) is provided on the surface of the No. 1 telescopic rod (110), one end of the No. 1 spring (111) is fixedly connected to the connecting shell (11), and the other end of the No. 1 spring (111) is fixedly connected to the side of the No. 2 wedge block (15).

6. A powder container bag quick clamping device according to claim 1, characterized in that: The mounting mechanism (2) comprises a No. 1 card plate (21), the No. 1 card plate (21) being fixedly connected to the bottom of the moving block (113), and a No. 1 plug plate (22) being plugged into the No. 1 card plate (21), a connecting frame (23) being fixedly connected to the side of the No. 1 card plate (21), a pull rod (28) being plugged into the surface of the connecting frame (23), one end of the pull rod (28) being fixedly connected to a No. 1 connecting plate (29), a No. 3 wedge block (24) being fixedly connected to the side of the No. 1 connecting plate (29), the No. 3 wedge block (24) being plugged into the No. 1 plug plate (22), a No. 3 spring (210) being arranged on the surface of the pull rod (28), one end of the No. 3 spring (210) being fixedly connected to the connecting frame (23), and the other end of the No. 3 spring (210) being fixedly connected to the No. 1 connecting plate (29).

7. A powder container bag quick clamping device according to claim 6, characterized in that: A No. 2 telescopic rod (26) is fixedly connected inside the No. 1 clamping plate (21), one end of the No. 2 telescopic rod (26) is fixedly connected to a push plate (25), the push plate (25) is in contact with the surface of the No. 1 plug plate (22), a No. 2 spring (27) is arranged on the surface of the No. 2 telescopic rod (26), one end of the No. 2 spring (27) is fixedly connected to the No. 1 clamping plate (21), and the other end of the No. 2 spring (27) is fixedly connected to the surface of the push plate (25).

8. The powder container bag quick clamping device according to claim 1, characterized in that: The clamping mechanism (3) comprises a No. 2 connecting plate (31), the No. 2 connecting plate (31) being fixedly connected to the No. 1 plug plate (22), and a No. 3 telescopic rod (32) being fixedly connected to the side of the No. 2 connecting plate (31), one end of the No. 3 telescopic rod (32) being fixedly connected to the No. 2 clamping plate (34), and a No. 4 spring (33) being arranged on the surface of the No. 3 telescopic rod (32), one end of the No. 4 spring (33) being fixedly connected to the No. 2 connecting plate (31), and the other end of the No. 4 spring (33) being fixedly connected to the No. 2 clamping plate (34).

9. A powder container bag quick clamping device according to claim 8, characterized in that: A No. 2 plugging plate (35) is inserted into the No. 2 card plate (34), a clamping plate (36) is fixedly connected to the side of the No. 2 plugging plate (35), and a rubber pad (37) is fixedly connected to the side of the clamping plate (36).

10. A powder container bag quick clamping device according to claim 8, characterized in that: The upper portion of the second clamping plate (34) is fixedly connected to a connecting sleeve (38), the connecting sleeve (38) is threadedly connected to a threaded pushing rod (39), the bottom of the threaded pushing rod (39) is fixedly connected to a pushing block (310), the pushing block (310) is embedded in the connecting sleeve (38), and the pushing block (310) is in contact with the top of the second plug plate (35).

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