Material bag clamping mechanism

Abstract

The utility model relates to a material bag clamping mechanism, and belongs to the field of single crystal drawing. The material bag clamping mechanism comprises an adsorption assembly, a first driving part, a clamping assembly, a second driving part and a mounting frame, the adsorption assembly is arranged on the mounting frame and is configured to adsorb the outer surface of the material bag, the driving end of the first driving part is connected with the mounting frame, and the first driving part is configured to drive the mounting frame to ascend and descend; the adsorption assembly sucks the outer surface of the material bag until the outer surface is separated from materials in the material bag; the second driving part is arranged on the mounting frame, the driving end of the second driving part is connected with the clamping assembly, and the second driving part is configured to drive the clamping assembly to clamp the outer surface, separated from the materials in the material bag, of the material bag after the outer surface of the material bag is sucked to be separated from the materials in the material bag. The outer surface of the material bag is sucked through the adsorption assembly, then the second driving part drives the adsorption assembly to ascend, the adsorption assembly sucks the outer surface of the material bag till the outer surface of the material bag is separated from materials in the material bag, the clamping assembly is used for clamping the outer surface, separated from the materials, of the material bag, and it is not needed to consider where a sealing opening of the material bag is located any more; and the clamping efficiency of the material bag is greatly improved.

Description

Technical Field

[0001] The present application belongs to the field of single crystal pulling and relates to a material bag clamping mechanism. Background Art

[0002] Silicon material, the raw material for single crystal pulling, is generally packaged in clean, transparent bags. Due to the high cleanliness requirements for the silicon material, in order to prevent the bags from being damaged during circulation, the single-layer thickness and strength of the bags are relatively large. Some bags are also made into double-layer or even multi-layer bags.

[0003] After silicon materials are packaged in bags, they need to be placed one by one in a storage box for future use. When needed, they are removed from the box one by one. Existing clamping mechanisms for removing silicon material bags from storage boxes cannot reach the material inside the bags, so they must clamp the seals of the bags. However, the bags are squeezed against each other in the storage box, and the seals are located in a chaotic manner. The clamping mechanism must first locate the seals before gripping, making bag removal quite difficult. Utility Model Content

[0004] The purpose of the present application is to provide a bag clamping mechanism that can clamp a bag without considering the sealing position of the bag.

[0005] The purpose of this application is achieved through the following technical solutions:

[0006] A material bag clamping mechanism includes a suction assembly, a first drive unit, a clamping assembly, a second drive unit, and a mounting frame. The suction assembly is disposed on the mounting frame and is configured to suck the outer surface of the material bag. A driving end of the first drive unit is connected to the mounting frame. The first drive unit is configured to drive the mounting frame to rise and fall, so that the suction assembly sucks up the outer surface of the material bag until it is separated from the material in the material bag.

[0007] The second driving part is arranged on the mounting frame, and the driving end of the second driving part is connected to the clamping assembly. The second driving part is configured to drive the clamping assembly to clamp the outer surface of the bag to separate from the material in the bag after the outer surface of the bag is sucked up and separated from the material in the bag.

[0008] The present application sets an adsorption component on the clamping mechanism, uses the adsorption component to first suck the outer surface of the material bag, and then uses the second driving part to drive the adsorption component to rise, so that the adsorption component sucks up the outer surface of the material bag until it is separated from the material in the material bag, and uses the clamping component to clamp the outer surface of the material bag separated from the material. There is no need to consider where the sealing of the material bag is, which greatly increases the clamping efficiency of the material bag.

[0009] Optionally, the adsorption component includes at least one suction cup.

[0010] Optionally, the mounting frame includes a first support plate, a second support plate, a guide column and an elastic member; the first end of the guide column is fixedly set on the first support plate, the second end of the guide column is slidably set on the second support plate, the elastic member is sleeved on the outer periphery of the guide column, and the two ends of the elastic member are respectively abutted against the first support plate and the second support plate, and the second support plate can be raised and lowered relative to the first support plate.

[0011] By setting a guide column and an elastic member to cooperate between the first support plate and the second support plate, when the first drive unit drives the mounting frame to descend close to the material bag, the floating design will not excessively press down the material bag, damage the material bag, and destroy the purity of the silicon material.

[0012] Optionally, a photoelectric switch is provided on the first support plate, and a sensing sheet is provided on the second support plate; or a photoelectric switch is provided on the second support plate, and a sensing sheet is provided on the first support plate.

[0013] By arranging a photoelectric switch on the first support plate or the second support plate, when the second support plate moves upward to trigger the photoelectric switch, the first driving part is controlled to no longer drive the mounting frame to descend, thereby facilitating the control of the material bag clamping mechanism to descend and absorb the material bag.

[0014] Optionally, the adsorption component includes an air joint and an adsorption chamber connected to the air joint, the adsorption chamber has an adsorption port for the adsorption bag, and the clamping component is arranged in the adsorption chamber and located above the adsorption port.

[0015] The adsorption chamber can be used to increase the adsorption area, and the clamping component is arranged in the adsorption chamber to facilitate clamping the outer surface of the material bag separated from the material in the material bag adsorbed by the adsorption chamber.

[0016] Optionally, a sponge is provided around the adsorption port.

[0017] A sponge is arranged around the suction port to prevent the suction port from making hard contact with the material in the bag when the suction port is lowered to press the bag.

[0018] Optionally, the clamping assembly includes a transmission part, a first jaw and a second jaw, the transmission part has an input end, a first hinge point and a second hinge point, the second driving part is connected to the input end, and the first jaw and the second jaw are hinged to the transmission part through the first hinge point and the second hinge point respectively.

[0019] The second driving part drives the first clamping jaw and the second clamping jaw to approach each other and clamp the outer surface of the bag separated from the material in the bag, and the clamping method is stable and reliable.

[0020] Optionally, the clamping assembly further includes a guide rod, which is fixedly disposed on the mounting frame, and the first clamping jaw and the second clamping jaw are slidably disposed on the guide rod.

[0021] By providing a guide rod, the clamping of the first clamping jaw and the second clamping jaw is guided, which helps to improve the smoothness of clamping.

[0022] Optionally, matching concave and convex parts are provided on the clamping surface of the first clamping jaw and the clamping surface of the second clamping jaw.

[0023] The matching concave and convex parts are arranged on the clamping surfaces of the first clamping jaw and the second clamping jaw, which can increase the friction between the clamping surfaces of the clamping jaws and the outer surface of the material bag, and increase the bite force between the first clamping jaw and the second clamping jaw during clamping, so as to firmly clamp materials of a certain weight.

[0024] Optionally, a first pressure rod is provided on the clamping surface of the first jaw, and a first hole matching the first pressure rod is provided on the clamping surface of the second jaw; and / or a second pressure rod is provided on the clamping surface of the second jaw, and a second hole matching the second pressure rod is provided on the clamping surface of the first jaw.

[0025] The first clamping jaw and the second clamping jaw are respectively provided with a pressure rod and a hole that cooperate with each other. When clamping, the bite force between the first clamping jaw and the second clamping jaw can be increased to stably clamp materials of a certain weight.

[0026] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0028] Figure 1 This is a schematic diagram of a first embodiment of the bag clamping mechanism of the present application;

[0029] Figure 2 for Figure 1 Schematic diagram of the clamping assembly of the bag clamping mechanism in the clamping state;

[0030] Figure 3 Schematic diagram of a second embodiment of the bag clamping mechanism of the present application;

[0031] Figure 4 for Figure 3 Schematic diagram of the clamping assembly of the bag clamping mechanism in the clamping state;

[0032] Figure 5 Schematic diagram of a third embodiment of the bag clamping mechanism of the present application;

[0033] Figure 6 for Figure 5 Schematic diagram with some parts hidden;

[0034] Figure 7 This is a schematic diagram of a fourth embodiment of the bag clamping mechanism of the present application;

[0035] Figure 8 Schematic diagram of a fifth embodiment of the bag clamping mechanism of the present application;

[0036] Figure 9 for Figure 8 Schematic diagram of the structural explosion of the bag clamping mechanism;

[0037] Figure 10 A schematic diagram of an embodiment of a clamping assembly of the bag clamping mechanism of the present application;

[0038] Figure 11 This is a schematic diagram of another embodiment of the clamping assembly of the bag clamping mechanism of the present application;

[0039] Figure 12 Schematic diagrams of various possible implementations of the clamping jaws of the bag clamping mechanism of the present application;

[0040] Figure 13 A schematic diagram of a bag to be clamped;

[0041] In the figure: adsorption assembly 100, suction cup 110, connecting rod 111, air joint 120, adsorption chamber 130, frame 1301, connecting plate 1302, sponge 1303, adsorption port 1304, mounting plate 1305;

[0042] Clamping assembly 200, first clamping jaw 210, first pressure rod 211, second hole 212, second clamping jaw 220, first hole 221, second pressure rod 222, transmission portion 230, input end 2301, first hinge point 2302, second hinge point 2303, third hinge point 2304, fourth hinge point 2305, first connecting rod 2306, second connecting rod 2307, guide rod 240, concave-convex portion 250;

[0043] The second driving unit 300, the first cylinder 310, the first cylinder driving end 320, the second cylinder 330, the connecting block 340, the cylindrical rack 350, the first gear 360, the motor 370, the second gear 380, and the sector gear 390;

[0044] Mounting frame 400, first support plate 410, second support plate 420, guide column 430, linear bearing 440, hinge support 450;

[0045] Photoelectric switch 510, sensor sheet 520;

[0046] Bag 600, seal 610, outer surface 620;

[0047] Silicon material 700. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0049] like Figure 13 As shown, because silicon material 700 requires high cleanliness, there is a risk of damage to the bag 600 when gripping it. Therefore, gripping the bag 600 is undesirable during production. The bag 600 containing silicon material 700 has a seal 610 of a certain size. Currently, a clamping mechanism must grasp the seal 610 to grasp the bag 600. However, the bags 600 are squeezed against each other in the storage box, and the seals 610 are located in a chaotic manner. The clamping mechanism must first locate the seal 610 before gripping, which makes grasping the bag 600 quite difficult.

[0050] In order to be able to directly clamp and grab the bag without considering the sealing position of the bag, this application proposes a bag clamping mechanism. The scheme is as follows:

[0051] A material bag clamping mechanism includes a suction assembly, a first drive unit, a clamping assembly, a second drive unit, and a mounting frame. The suction assembly is disposed on the mounting frame and is configured to suck the outer surface of the material bag. A driving end of the first drive unit is connected to the mounting frame. The first drive unit is configured to drive the mounting frame to rise and fall, so that the suction assembly sucks up the outer surface of the material bag until it is separated from the material in the material bag.

[0052] The second driving part is arranged on the mounting frame, and the driving end of the second driving part is connected to the clamping assembly. The second driving part is configured to drive the clamping assembly to clamp the outer surface of the bag to separate from the material in the bag after the outer surface of the bag is sucked up and separated from the material in the bag.

[0053] The present application sets an adsorption component on the clamping mechanism, uses the adsorption component to first suck the outer surface of the material bag, and then uses the second driving part to drive the adsorption component to rise, so that the adsorption component sucks up the outer surface of the material bag until it is separated from the material in the material bag, and uses the clamping component to clamp the outer surface of the material bag separated from the material. There is no need to consider where the sealing of the material bag is, which greatly increases the clamping efficiency of the material bag.

[0054] The bag clamping mechanism of the present application is described in detail below with reference to the accompanying drawings:

[0055] like Figures 1 to 9 As shown, the material bag clamping mechanism includes an adsorption component 100, a first driving part, a clamping component 200, a second driving part 300 and a mounting frame 400. The adsorption component 200 is arranged on the mounting frame 400 and is configured to adsorb the outer surface of the material bag. The driving end of the first driving part is connected to the mounting frame 400. The first driving part is configured to drive the mounting frame 400 to rise and fall, so that the adsorption component 200 sucks up the outer surface 620 of the material bag 600 until it is separated from the material in the material bag 600.

[0056] The second driving unit 300 is set on the mounting frame 400, and the driving end of the second driving unit 300 is connected to the clamping assembly 200. The second driving unit 300 is configured to drive the clamping assembly 200 to clamp the outer surface 620 of the bag 600 and separate it from the material in the bag 600 after the outer surface 620 of the bag 600 is sucked up and separated from the material in the bag 600.

[0057] The first driving unit can be a lifting module composed of a motor, a lead screw nut, or a separate cylinder. It is only necessary to connect the driving end of the first driving unit to the mounting bracket 400. Before the clamping assembly 200 clamps the material bag 600, the first driving unit drives the mounting bracket 400 to descend close to the material bag 600 to be clamped, and the outer surface 620 of the material bag 600 is sucked by the adsorption assembly 200. Then, the first driving unit drives the mounting bracket 400 to rise, and the adsorption assembly 200 adsorbs the outer surface 620 of the material bag 600 upward until it is separated from the material in the material bag 600. Figure 13 As shown in (b), the outer surface 620 of the bag 600 is lifted upward by the suction assembly 200 and is separated from the material inside the bag 600. Finally, the second drive unit 300 drives the clamping assembly 200 to clamp the lifted outer surface 620, thereby clamping the bag containing the material without pinching the material.

[0058] The adsorption assembly 100 of the present application has a variety of optional embodiments. Optionally, the adsorption assembly 100 includes at least one suction cup 110. Figure 1 、 2 In the embodiment shown, the adsorption assembly 100 includes a suction cup 110. Figure 3 、 4 As shown, in another embodiment, the adsorption assembly 100 includes two suction cups 110. Of course, in order to improve the adsorption effect, in other embodiments, the suction cup assembly 100 can also include three, four or more suction cups 110.

[0059] Specifically, such as Figure 3 、 4As shown, the adsorption assembly 100 further includes a connecting rod 111 in communication with the suction cup 110 . The connecting rod 111 is connected to an external negative pressure device for providing negative pressure to the suction cup 110 .

[0060] Optional, such as Figures 5 to 9 As shown, the adsorption assembly 100 includes an air connector 120 and an adsorption chamber 130 connected to the air connector 120 . The adsorption chamber 130 has an adsorption port 1304 for an adsorption bag. The clamping assembly 200 is disposed in the adsorption chamber 130 and above the adsorption port 1304 .

[0061] The adsorption chamber 130 can be used to increase the adsorption area. The clamping assembly 200 is arranged in the adsorption chamber 130 to facilitate clamping the outer surface 620 of the material bag 600 adsorbed by the adsorption chamber 130 and separated from the material in the material bag 600.

[0062] In order to prevent the suction port 1304 from making hard contact with the material in the material bag 600 when the suction port 1304 is lowered to press the material bag 600 , a sponge 1303 is provided around the suction port 1304 .

[0063] For the specific implementation of the adsorption chamber, please refer to Figures 5 to 9 The adsorption chamber 130 includes a mounting plate 1305, a connecting plate 1302, and a frame 1301. The mounting plate 1305 is connected to the bottom of the first support plate 410. The frame 1301 is a rectangular frame that runs vertically and is fixedly connected to the bottom of the mounting plate 1305. The connecting plate 1302 has a through hole. The area of ​​this through hole is smaller than the area of ​​the frame 1301 in the through direction, which can reduce the adsorption opening of the adsorption chamber 130. The mounting plate 1305, the frame 1301, and the connecting plate 1302 together enclose the adsorption chamber.

[0064] To facilitate the installation and use of the adsorption assembly 100 and the clamping assembly 200 of the present application, the mounting bracket 400 of the present application has the following optional implementations:

[0065] Optional, such as Figures 1 to 4 As shown, the mounting frame 400 includes a first support plate 410, a second support plate 420, a guide column 430 and an elastic member (not shown in the figure); the first end of the guide column 430 is fixedly set on the first support plate 410, and the second end of the guide column 430 is slidably set on the second support plate 420. The elastic member is sleeved on the outer periphery of the guide column 430, and the two ends of the elastic member are respectively abutted on the first support plate 410 and the second support plate 420, and the second support plate 420 can be raised and lowered relative to the first support plate 410.

[0066] The elastic member may be a coil spring wound around the outer circumference of the guide column, or an elastic silicone sleeve sleeved around the outer circumference of the guide column. This application does not limit the specific selection of the elastic member.

[0067] Since the material bag 600 containing silicon material is not flat, the adsorption component 100 can more efficiently adsorb the outer surface 620 of the material bag 600 by contacting the outer surface 620 of the material bag 600 as much as possible. Therefore, it is hoped that the first driving unit drives the adsorption component 100 to be pressed down as far as possible to achieve full contact between the adsorption component 100 and the outer surface 620 of the material bag 600.

[0068] Figures 1 to 4 An embodiment of a bag-holding mechanism combining a mounting frame and a suction assembly is provided. A first support plate 410 is connected to the driving end of a first drive unit. Both the suction assembly 100 and the clamping assembly 200 are mounted on a second support plate 420. A connecting rod 111 extends through and is fixedly mounted on the second support plate 420. A suction cup 110 is positioned at the bottom of the connecting rod 111. The first drive unit drives the first support plate 410 downward, thereby driving the suction cup 110 downward. As the suction cup 110 descends until it fully contacts the outer surface 620 of the bag 600, the silicon material 700 within the bag 600 exerts an upward force on the suction cup 110, pushing it upward. Because the second support plate 420, on which the suction cup 110 is mounted, is adjustable relative to the first support plate 410, the suction cup 110 has a certain amount of vertical float, effectively preventing excessive downward pressure on the bag 600, which could damage the bag 600 and compromise the purity of the silicon material 700.

[0069] When the suction cup 110 is pushed upward by the silicon material in the material bag 600 to a certain floating distance, the elastic member located between the first support plate 410 and the second support plate 420 is squeezed. When the first driving unit drives the first support plate 410 to rise, driving the suction cup 110 to move upward while adhering to the outer surface 620 of the material bag 600, the elastic member releases pressure to restore the second support plate 420.

[0070] Figure 8 and Figure 9Another embodiment of a bag-clamping mechanism combining a mounting frame and an adsorption assembly is provided. A second support plate 420 is connected to the drive end of a first drive unit, and both the adsorption assembly 100 and the clamping assembly 200 are disposed on the first support plate 410. The second support plate 420 is positioned above the first support plate 410, and the adsorption chamber 130 is positioned below the first support plate 410. The first drive unit drives the second support plate 420 downward, thereby driving the first support plate 410 downward, and thus the adsorption chamber 130 below the first support plate 410 downward. As the adsorption chamber 130 descends until it fully contacts the outer surface 620 of the bag 600, the silicon material 700 within the bag 600 exerts an upward force on the adsorption chamber 130, pushing it upward. Because the second support plate 420 connected to the first driving unit is liftable relative to the first support plate 410, the adsorption chamber 130 has a certain amount of floating in the vertical direction, which can effectively avoid excessive downward pressure on the material bag 600, damage to the material bag 600, and loss of purity of the silicon material 700.

[0071] It can be seen that by providing the guide column 430 and the elastic member, cooperation is performed between the first support plate 410 and the second support plate 420. When the first driving unit drives the mounting frame 400 to descend close to the material bag 600, the floating design will not excessively press down the material bag 600, thereby damaging the material bag 600 and destroying the purity of the silicon material 700.

[0072] In order to improve the stability of the second support plate 420 relative to the first support plate 410, a linear bearing 440 may be provided. Figures 1 to 4 、 Figure 8 、 Figure 9 As shown, the linear bearing 440 is disposed on the second support plate 420 and sleeved on the outer circumference of the guide column 430 .

[0073] In some embodiments of the material bag clamping mechanism of the present application, in which the adsorption component has a floating amount in the vertical direction, in order to better control the first drive unit's grasp of the descent amount of the adsorption component, a photoelectric switch 510 and a sensor sheet 520 can be provided to more accurately control the start and stop timing of the first drive unit's descent.

[0074] Optional, such as Figure 1 、 Figure 4 、 Figure 8 、 Figure 9 As shown, a photoelectric switch 510 is provided on the first support plate 410, and a sensing sheet 520 is provided on the second support plate 420. Alternatively, a photoelectric switch 510 is provided on the second support plate 420, and a sensing sheet 520 is provided on the first support plate 410.

[0075] By setting a photoelectric switch 510 on the first support plate 410 or the second support plate 420, when the second support plate 420 moves upward to trigger the photoelectric switch 510, the first driving unit is controlled to no longer drive the mounting frame to descend, thereby facilitating the control of the material bag clamping mechanism to descend and absorb the material bag 600.

[0076] Optional, such as Figure 10 、 11 As shown, the clamping assembly 200 includes a transmission part 230, a first jaw 210 and a second jaw 220, the transmission part 230 has an input end 2301, a first hinge point 2302 and a second hinge point 2303, the second driving part 300 is connected to the input end 2301, and the first jaw 210 and the second jaw 220 are hinged on the transmission part 230 through the first hinge point 2302 and the second hinge point 2303 respectively.

[0077] The second driving unit 300 drives the first clamping jaw 210 and the second clamping jaw 220 to approach each other and clamp the outer surface 620 of the bag 600 separated from the material in the bag 600. The clamping method is stable and reliable.

[0078] This application provides the following optional implementations of the transmission portion 230 of the clamping assembly 200:

[0079] Please refer to Figure 10 The transmission unit 230 of the clamping assembly includes a first hinge point 2302, a second hinge point 2303, a third hinge point 2304, a fourth hinge point 2305, a first connecting rod 2306, and a second connecting rod 2307. The second driving unit 300 is a first cylinder 310. The fixed portion of the first cylinder 310 is mounted on the second support plate 420, and the first cylinder driving end 320 is disposed through the second support plate 420. The first connecting rod 2306 and the second connecting rod 2307 are hinged to the first cylinder driving end 320 at the third hinge point 2304 and the fourth hinge point 2305, respectively, via pins. The third hinge point 2304, the fourth hinge point 2305, and the pin constitute the input end 2301 of the transmission unit 230.

[0080] Two hinge supports 450 are fixedly mounted below the second support plate 420. A pin passing through the third hinge point 2304 and the fourth hinge point 2305 is mounted between the two hinge supports 450. The other ends of the first connecting rod 2306 and the second connecting rod 2307 are hingedly connected to the first clamping jaw 210 and the second clamping jaw 220 via the first hinge point 2302 and the second hinge point 2303, respectively.

[0081] Please combine Figure 2 、 Figure 4 and Figure 10When the first cylinder driving end 320 extends, the first connecting rod 2306 and the second connecting rod 2307 drive the first clamping jaw 210 and the second clamping jaw 220 to approach each other, thereby clamping the material bag 600; when the first cylinder driving end 320 retracts, the first connecting rod 2306 and the second connecting rod 2307 drive the first clamping jaw 210 and the second clamping jaw 220 to move away from each other, thereby releasing the material bag 600.

[0082] Figure 11 Another embodiment of the transmission portion 230 of the clamping assembly 200 is provided: the transmission portion 230 of the clamping assembly 200 includes an input shaft 2301, a first hinge point 2302, a second hinge point 2303, a third hinge point 2304, a fourth hinge point 2305, a third link 2308, a fourth link 2309, and a connecting base 2310. The input shaft 2301 is fixedly connected to the connecting base 2310. The third hinge point 2304 and the fourth hinge point 2305 are respectively located at opposite ends of the connecting base 2310 and are hingedly connected to the connecting base 2310 at the third hinge point 2304 and the fourth hinge point 2305, respectively, via pins. The third link 2308 is hingedly connected to the first clamping jaw 210 at the first hinge point 2302 via a pin, and the fourth link 2309 is hingedly connected to the second clamping jaw 220 at the second hinge point 2303 via a pin. When the input end of the transmission part 230, i.e., the input shaft 2301, receives the power input from the second driving part 300, the input shaft 2301 rotates, thereby driving the third connecting rod 2308 and the fourth connecting rod 2309 to move through the connecting seat 2310, thereby driving the first clamping jaw 210 and the second clamping jaw 220 to move closer to or away from each other.

[0083] Optionally, when the transmission part 230 of the clamping assembly 200 adopts Figure 11 When the transmission part 230 is shown, in order to improve the smoothness of clamping, the clamping assembly 200 also includes a guide rod 240, which is fixedly arranged on the mounting frame 400, and the first clamping jaw 210 and the second clamping jaw 220 are slidably arranged on the guide rod 240.

[0084] When the power received by the input end 2301 of the transmission part of the clamping assembly 200 is torque, for example Figure 11 The second driving unit has multiple optional implementations. Specifically:

[0085] like Figure 5 、 6In the illustrated embodiment, the second drive unit 300 includes a second cylinder 330, a connecting block 340, a cylindrical rack 350, and a first gear 360. The second cylinder 330 is fixedly mounted on a mounting plate, with its drive end fixedly connected to the connecting block 340. One end of the cylindrical rack 350 is fixedly connected to the connecting block 340. The first gear 360 is mounted on the input shaft 2301 and meshes with the cylindrical rack 350. When the second cylinder 330 pushes the connecting block 340, it simultaneously drives the cylindrical rack 350, which in turn rotates the first gear 360, thereby transmitting torque to the input shaft 2301. In addition to meshing with the first gear 360, the cylindrical surface of the cylindrical rack 350 (i.e., the side without teeth) serves as a guide during its movement.

[0086] like Figure 7 In the illustrated embodiment, the second drive unit 300 includes a motor 370, a second gear 380, and a sector gear 390. The sector gear 390 is mounted on the input shaft 2301. The motor 370 is mounted above the mounting plate 1305. The second gear 380 is mounted on the output shaft of the motor 370 and meshes with the sector gear 390. The motor 370 transmits torque to the input shaft 2301 through the meshing of the second gear 380 and the sector gear 390.

[0087] In other embodiments, the second driving unit 300 is a motor, and the output shaft of the motor is in transmission connection with the input shaft 2301 , so that the motor directly transmits the torque to the input shaft 2301 .

[0088] In order to improve the clamping force between the first clamping jaw 210 and the second clamping jaw 220, the present application provides matching concave and convex parts on the clamping surface of the clamping jaw. Figure 10-12 As shown, the concave-convex portion 250 can be a continuously arranged strip-shaped protrusion and a strip-shaped recess; or it can be a uniformly arranged conical protrusion on the clamping surface and recesses matched with each conical protrusion.

[0089] In order to further improve the clamping force between the first clamping jaw 210 and the second clamping jaw 220, a pressure rod can be provided on one of the clamping surfaces of the first clamping jaw 210 and the second clamping jaw 220, and a hole for matching with the pressure rod can be provided on the other clamping surface. Figure 12 As shown in (a) and (b), a first pressure rod 211 is provided on the clamping surface of the first clamping jaw 210 , and a first hole 221 matching with the first pressure rod 211 is provided on the clamping surface of the second clamping jaw 220 .

[0090] Or, as Figure 11 and Figure 12As shown in (c), a second pressure rod 222 is provided on the clamping surface of the second clamping jaw 220 , and a second hole 212 that matches the second pressure rod 222 is provided on the clamping surface of the first clamping jaw 210 .

[0091] Alternatively, a first pressure rod 211 is provided on the clamping surface of the first clamping jaw 210, a first hole 221 matching with the first pressure rod 211 is provided on the clamping surface of the second clamping jaw 220, a second pressure rod 222 is provided on the clamping surface of the second clamping jaw 220, and a second hole 212 matching with the second pressure rod 222 is provided on the clamping surface of the first clamping jaw 210.

[0092] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the usual meaning understood by persons of ordinary skill in the field to which the invention belongs. The words "first", "second" and similar terms used in the patent application specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections. In addition, the "at least one" mentioned herein includes one, two or more than two.

[0093] Those skilled in the art will readily appreciate other embodiments of the present invention after consideration of the specification and practice. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not invented herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0094] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A bag clamping mechanism, characterized in that: The material bag clamping mechanism includes an adsorption assembly, a first driving unit, a clamping assembly, a second driving unit, and a mounting frame. The adsorption assembly is disposed on the mounting frame and is configured to adsorb the outer surface of the material bag. The driving end of the first driving unit is connected to the mounting frame. The first driving unit is configured to drive the mounting frame to rise and fall, so that the adsorption assembly adsorbs the outer surface of the material bag until it is separated from the material in the material bag. The second driving part is arranged on the mounting frame, and the driving end of the second driving part is connected to the clamping assembly. The second driving part is configured to drive the clamping assembly to clamp the outer surface of the bag to separate from the material in the bag after the outer surface of the bag is sucked up and separated from the material in the bag.

2. The bag clamping mechanism according to claim 1, characterized in that: The adsorption component includes at least one suction cup.

3. The bag clamping mechanism according to claim 1, characterized in that: The mounting frame includes a first support plate, a second support plate, a guide column and an elastic member; The first end of the guide column is fixedly arranged on the first support plate, and the second end of the guide column is slidably arranged on the second support plate. The elastic member is sleeved on the outer periphery of the guide column, and the two ends of the elastic member are respectively abutted on the first support plate and the second support plate. The second support plate can be raised and lowered relative to the first support plate.

4. The bag clamping mechanism according to claim 3, characterized in that: The first support plate is provided with a photoelectric switch, and the second support plate is provided with a sensor sheet; or, The second supporting plate is provided with a photoelectric switch, and the first supporting plate is provided with a sensor sheet.

5. The bag clamping mechanism according to claim 1, characterized in that: The adsorption component includes an air joint and an adsorption chamber connected to the air joint. The adsorption chamber has an adsorption port for adsorbing the material bag. The clamping component is arranged in the adsorption chamber and located above the adsorption port.

6. The bag clamping mechanism according to claim 5, characterized in that: A sponge is arranged around the adsorption port.

7. The bag clamping mechanism according to claim 1, characterized in that: The clamping assembly includes a transmission part, a first clamping jaw and a second clamping jaw. The transmission part has an input end, a first hinge point and a second hinge point. The second driving part is connected to the input end through transmission. The first clamping jaw and the second clamping jaw are hinged to the transmission part through the first hinge point and the second hinge point respectively.

8. The bag clamping mechanism according to claim 7, characterized in that: The clamping assembly further includes a guide rod, which is fixedly arranged on the mounting frame, and the first clamping jaw and the second clamping jaw are slidably arranged on the guide rod.

9. The bag clamping mechanism according to claim 7, characterized in that: The clamping surface of the first clamping jaw and the clamping surface of the second clamping jaw are provided with matching concave and convex parts.

10. The bag clamping mechanism according to claim 7, characterized in that: A first pressure rod is provided on the clamping surface of the first clamping jaw, and a first hole matching with the first pressure rod is provided on the clamping surface of the second clamping jaw; and / or, A second pressure rod is provided on the clamping surface of the second clamping jaw, and a second hole matched with the second pressure rod is provided on the clamping surface of the first clamping jaw.

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