Material bag feeding mechanism and material bag opening device

Abstract

The utility model provides a material bag feeding mechanism and a material bag opening device.The material bag feeding mechanism is configured to supply a material bag containing materials, the material bag comprises a body defining a containing cavity, a sealing tongue for sealing the containing cavity is formed at the top of the body, and the material bag feeding mechanism comprises a material bag input part and a material bag shaping part; wherein the material bag input part is configured to convey material bags to the material bag shaping part; the material bag shaping part is configured to be attached to the sealing tongue of the material bag from the two sides and upwards straighten the sealing tongue. According to the material bag feeding mechanism provided by the invention, the sealing tongue of the material bag can be straightened in the feeding and conveying process, so that the sealing tongue of the material bag can be smoothly clamped by a material bag opening mechanism in the subsequent process, the opening operation on the material bag is implemented, and the opening efficiency of the material bag is improved.

Description

Technical Field

[0001] The present application relates to the field of single crystal pulling, and more specifically to a bag feeding mechanism and a bag opening device for the bag. Background Art

[0002] Silicon materials are generally packaged in bags. For a packaged bag, a vertical sealing tongue is formed at the top of its body. Before using the silicon material, the bag opening mechanism first clamps the sealing tongue, and then cuts the bag along the bottom of the sealing tongue.

[0003] However, during storage or transportation, the sealing tongue is bent downward or droops under pressure, resulting in difficulty for the bag opening mechanism to smoothly clamp and cut the sealing tongue, which affects the production efficiency. Summary of the Utility Model

[0004] In order to solve the above technical problems, the present application provides a bag feeding mechanism, which adopts the following technical solutions:

[0005] A bag feeding mechanism is configured to supply a bag containing materials. The bag includes a body defining a receiving cavity, and a sealing tongue for closing the receiving cavity is formed at the top of the body. The bag feeding mechanism includes a bag input part and a bag shaping part, wherein:

[0006] The bag input part is configured to convey the bag to the bag shaping part;

[0007] The bag shaping part is configured to abut against the sealing tongue of the bag from both sides and straighten the sealing tongue upward.

[0008] The bag feeding mechanism provided by the present application can straighten the sealing tongue of the bag during the feeding and conveying process, thereby ensuring that the subsequent bag opening mechanism can smoothly clamp the sealing tongue of the bag and perform the bag opening operation, thus improving the bag opening efficiency.

[0009] In some embodiments, the bag shaping unit includes a first frame, a first lifting and adjusting unit, a first mounting bracket, a straightening driving unit, a first straightening member, and a second straightening member, where: both ends of the first mounting bracket are slidably connected to the first frame and are in transmission connection with the first lifting and adjusting unit provided on the first frame; the first straightening member and the second straightening member are slidably connected to the first mounting bracket and are respectively in transmission connection with the straightening driving unit provided on the first mounting bracket, and a straightening space is formed between the first straightening member and the second straightening member; the first lifting and adjusting unit is configured to drive the first mounting bracket to descend so that the sealing tongue of the bag located at the shaping station extends into the straightening space; the straightening driving unit is configured to drive the first straightening member and the second straightening member to slide towards the middle and approach each other, so that the first straightening member and the second straightening member abut against the bottom of the sealing tongue from both sides; the first lifting and adjusting unit is further configured to drive the first mounting bracket to ascend to drive the first straightening member and the second straightening member to straighten the sealing tongue upwards.

[0010] First, the first lifting and adjusting unit drives the first mounting bracket to descend, so that the sealing tongue of the bag extends into the straightening space between the first straightening member and the second straightening member. Then, the straightening driving unit drives the first straightening member and the second straightening member to slide towards the middle and approach each other, so that the first straightening member and the second straightening member abut against the bottom of the sealing tongue from both sides. Finally, the first lifting and adjusting unit drives the first mounting bracket to ascend to drive the first straightening member and the second straightening member to straighten the sealing tongue upwards. It can be seen that through the combined driving of the first lifting and adjusting unit and the straightening driving unit, the first straightening member and the second straightening member achieve the clamping and straightening of the bottom of the sealing tongue of the bag.

[0011] In some embodiments, the straightening driving unit includes a first straightening driving member and a second straightening driving member, where the driving end of the first straightening driving member is connected to the first straightening member, and the driving end of the second straightening driving member is connected to the second straightening member; the first straightening driving member and the second straightening driving member are configured to synchronously drive the first straightening member and the second straightening member to translate in opposite directions, so that the first straightening member and the second straightening member slide towards the middle and approach each other or slide apart towards both sides.

[0012] Through the combined driving of the first straightening driving member and the second straightening driving member, the first straightening member and the second straightening member achieve the clamping and release of the sealing tongue. In addition, since the first straightening member and the second straightening member are respectively driven by the first straightening driving member and the second straightening driving member, the sliding strokes of the first straightening member and the second straightening member can be independently adjusted according to the position of the bag, and finally ensure that the first straightening member and the second straightening member abut against both sides of the bottom of the sealing tongue.

[0013] In some embodiments, the first straightening member includes a first plate frame and a first brush. The first plate frame is slidably connected to the first mounting bracket and is in transmission connection with the straightening driving unit. Both ends of the first brush are fixedly or rotatably connected to the first plate frame. The second straightening member includes a second plate frame and a second brush. The second plate frame is slidably connected to the first mounting bracket and is in transmission connection with the straightening driving unit. Both ends of the second brush are fixedly or rotatably connected to the second plate frame. The second brush and the first brush are at the same height. When the straightening driving unit drives the first plate frame and the second plate frame to slide towards the middle and approach each other, the first brush and the second brush abut against the bottom of the sealing tongue from both sides. When the first lifting and adjusting unit drives the first mounting bracket to rise, the first brush and the second brush move upward to straighten the sealing tongue.

[0014] After the first brush and the second brush abut against the bottom of the sealing tongue from both sides, they move upward along the sealing tongue under the drive of the first lifting and adjusting unit, so as to straighten the sealing tongue, ensuring the straightening effect while preventing jamming.

[0015] The present application also provides a bag opening device, which includes the bag loading mechanism, the bag handling mechanism and the bag opening mechanism described in any one of the above. Among them: the bag loading mechanism is configured to input the bag to be opened and straighten the sealing tongue of the bag upward; the bag handling mechanism is configured to pick up and hold the bag from the bag loading mechanism and transport the bag into the bag opening mechanism; the bag opening mechanism is configured to cut the sealing tongue of the bag.

[0016] Through the cooperation of the bag loading mechanism, the bag handling mechanism and the bag opening mechanism, the bag opening device provided by the present application realizes the automatic opening of the bag.

[0017] In some embodiments, the bag handling mechanism includes a moving part, a base, a holding driving part, a first holding part and a second holding part. Among them: the base is connected to the driving end of the moving part, and the holding driving part is arranged on the base; the first holding part and the second holding part are slidably connected to the base and are respectively in transmission connection with the holding driving part. A holding space for accommodating the bag is formed between the first holding part and the second holding part; the moving part is configured to drive the base to move towards the bag to be picked up so that the bag enters the holding space; the holding driving part is configured to drive the first holding part and the second holding part to slide towards the middle and approach each other to hold the body of the bag and the sealing tongue of the bag.

[0018] Through the cooperative driving of the moving part and the holding driving part, the first holding part and the second holding part hold the body of the plastic bag and the sealing tongue of the plastic bag, and transport the held plastic bag into the plastic bag opening mechanism, thus realizing the automatic handling and feeding of the plastic bag. Since the straightened sealing tongue is held during the handling process, the sealing tongue remains upright, ensuring that the plastic bag opening mechanism can smoothly cut the sealing tongue of the plastic bag.

[0019] In some embodiments, the holding driving part includes a first translation driving member and a second translation driving member, wherein: the driving end of the first translation driving member is connected to the first holding part, and the driving end of the second translation driving member is connected to the second holding part; the first translation driving member and the second translation driving member are configured to synchronously drive the first holding part and the second holding part to translate in opposite directions, so that the first holding part and the second holding part slide closer to the middle or slide apart from each other.

[0020] Through the cooperative driving of the first translation driving member and the second translation driving member, the first holding part and the second holding part hold the body of the plastic bag and the sealing tongue of the plastic bag. In addition, since the first holding part and the second holding part are respectively driven by the first translation driving member and the second translation driving member, the sliding strokes of the first holding part and the second holding part can be independently adjusted according to the position of the plastic bag, finally ensuring that the first holding part and the second holding part can synchronously contact the body of the plastic bag and the sealing tongue of the plastic bag from both sides, so as to cooperate in holding the body of the plastic bag and the sealing tongue of the plastic bag.

[0021] In some embodiments, the first holding part includes a first sliding bracket, a first adsorption unit, a first lifting unit, a first translation unit and a first straightening member, wherein: the first sliding bracket is slidably connected to the base and is in transmission connection with the holding driving part, the first adsorption unit is arranged on the first sliding bracket, the first adsorption unit has a first adsorption surface facing the holding space, the first lifting unit is arranged on the first sliding bracket, the first translation unit is connected to the driving end of the first lifting unit, and the first straightening member is connected to the driving end of the first translation unit; the second holding part includes a second sliding bracket, a second adsorption unit, a second lifting unit, a second translation unit and a second straightening member, wherein: the second sliding bracket is slidably connected to the base and is in transmission connection with the holding driving part, the second adsorption unit is arranged on the second sliding bracket, the second adsorption unit has a second adsorption surface facing the holding space, the second lifting unit is arranged on the second sliding bracket, the second translation unit is connected to the driving end of the second lifting unit, and the second straightening member is connected to the driving end of the second translation unit; the first adsorption unit and the second adsorption unit are configured to adsorb the body of the plastic bag from both sides, and the first straightening member and the second straightening member are configured to abut against the sealing tongue of the plastic bag from both sides.

[0022] The first adsorption unit of the first holding part and the second adsorption unit of the second holding part cooperate to adsorb the body of the bag from both sides, thereby achieving the holding of the body of the bag. The first straightening member of the first holding part and the second straightening member of the second holding part cooperate to abut against the sealing tongue of the bag from both sides, thereby achieving the holding of the sealing tongue of the bag. With such a configuration, on the one hand, the holding strength of the first holding part and the second holding part on the bag is ensured, ensuring that the bag handling mechanism can carry the bag. On the other hand, since the sealing tongue of the bag is abutted from both sides by the first straightening member of the first holding part and the second straightening member of the second holding part, it can be ensured that the sealing tongue of the bag remains in an upright state.

[0023] In some embodiments, the bag opening mechanism includes a second frame, a clamping part and a cutting part, wherein: an opening station is provided in the second frame, and the bag transporting mechanism transports the bag to the opening station; the clamping part is arranged on the second frame and located above the opening station, and the clamping part is configured to clamp the sealing tongue of the bag from above; after the clamping part clamps the sealing tongue of the bag, the first straightening member and the second straightening member are configured to release and leave the sealing tongue of the bag; the cutting part is arranged on the second frame, and the cutting part is configured to cut the sealing tongue of the bag.

[0024] Before the first straightening member and the second straightening member release and leave the sealing tongue of the material bag, the clamping part clamps the sealing tongue of the material bag from above, thereby avoiding contact and interference with the first straightening member and the second straightening member. After the clamping part clamps the sealing tongue of the material bag from above, the first straightening member and the second straightening member release and leave the sealing tongue of the material bag, thereby exposing the opening position of the sealing tongue, so that the cutting part can smoothly cut the sealing tongue of the material bag from the side.

[0025] In some embodiments, the cutting portion includes a second lifting and adjusting unit, a second mounting bracket, a cutter driving unit, a first cutter assembly and a second cutter assembly, wherein: both ends of the second mounting bracket are slidably connected to the second frame and are transmission-connected to the second lifting and adjusting unit disposed on the second frame; the first cutter assembly and the second cutter assembly are slidably connected to the second mounting bracket and are transmission-connected to the cutter driving unit disposed on the second mounting bracket, respectively, and a cutting space is formed between the first cutter assembly and the second cutter assembly; the second lifting and adjusting unit is configured to drive the second mounting bracket to descend so that the sealing tongue of the material bag transported to the opening station extends into the cutting space; the cutter driving unit is configured to drive the first cutter assembly and the second cutter assembly to slide closer to the middle so that the first cutter assembly and the second cutter assembly are docked to cut the sealing tongue of the material bag.

[0026] First, the second lifting and adjusting unit drives the second mounting bracket to descend, so that the sealing tongue of the material bag extends into the cutting space between the first cutting blade assembly and the second cutting blade assembly. Then, the cutting blade driving unit drives the first cutting blade assembly and the second cutting blade assembly to slide towards the middle and close together, so that the first cutting blade assembly and the second cutting blade assembly cut the sealing tongue of the material bag. It can be seen that through the combined driving of the second lifting and adjusting unit and the cutting blade driving unit, the first cutting blade assembly and the second cutting blade assembly realize the automatic cutting of the sealing tongue of the material bag.

[0027] In some embodiments, the cutting blade driving unit includes a first cutting blade driving member and a second cutting blade driving member. Among them, the driving end of the first cutting blade driving member is connected to the first cutting blade assembly, and the second cutting blade driving member is connected to the second cutting blade assembly; the first cutting blade driving member and the second cutting blade driving member are configured to synchronously drive the first cutting blade assembly and the second cutting blade assembly to translate in opposite directions, so that the first cutting blade assembly and the second cutting blade assembly slide towards the middle and close together or slide apart towards both sides.

[0028] Through the combined driving of the first cutting blade driving member and the second cutting blade driving member, the first cutting blade assembly and the second cutting blade assembly realize the automatic cutting of the sealing tongue of the material bag. In addition, since the first cutting blade assembly and the second cutting blade assembly are respectively driven by the first cutting blade driving member and the second cutting blade driving member, the sliding strokes of the first cutting blade assembly and the second cutting blade assembly can be independently adjusted according to the position of the material bag, and finally it is ensured that both the first cutting blade assembly and the second cutting blade assembly can contact the seal of the material bag and cooperate to automatically cut the sealing tongue of the material bag.

[0029] In some embodiments, the first cutting blade assembly includes a first tool holder, a first cutting blade and at least one first limiting block. Among them, the first tool holder is slidably connected to the second mounting bracket and is in transmission connection with the cutting blade driving unit, and the first cutting blade and the first limiting block are mounted on the first tool holder; the second cutting blade assembly includes a second tool holder, a second cutting blade and at least one second limiting block corresponding to the first limiting block one by one. Among them, the second tool holder is slidably connected to the second mounting bracket and is in transmission connection with the cutting blade driving unit, and the second cutting blade and the second limiting block are mounted on the second tool holder; when the cutting blade driving unit drives the first tool holder and the second tool holder to slide towards the middle and close together, the first limiting block abuts against the corresponding second limiting block, and the first cutting blade and the second cutting blade are butted to cut the sealing tongue of the material bag.

[0030] By setting the first cutting blade assembly and the second cutting blade assembly, the first cutting blade and the second cutting blade can be butted to cut the sealing tongue of the material bag. In addition, through the limitation of the first limiting block and the second limiting block, the first cutting blade and the second cutting blade are stopped in time after butting, preventing overpressure damage caused by overpressure of the first cutting blade and the second cutting blade. Brief Description of the Drawings

[0031] Figure 1Schematic diagram of the bag feeding mechanism in an embodiment of the present application from one perspective;

[0032] Figure 2 Schematic diagram of the bag feeding mechanism in an embodiment of the present application from another perspective;

[0033] Figure 3 Schematic diagram of the bag shaping part in an embodiment of the present application from one perspective;

[0034] Figure 4 Schematic diagram of the bag shaping part in an embodiment of the present application from another perspective;

[0035] Figure 5 Schematic diagram of the bag opening device in an embodiment of the present application;

[0036] Figure 6 Schematic diagram of the bag handling mechanism in an embodiment of the present application after removing the moving part;

[0037] Figure 7 Schematic diagram of the bag opening mechanism in an embodiment of the present application;

[0038] Figure 8 Schematic diagram of the clamping part in an embodiment of the present application;

[0039] Figure 9 Schematic diagram of the cutting part in an embodiment of the present application;

[0040] Figures 1 to 9 It includes:

[0041] Bag feeding mechanism 10:

[0042] Bag input part 11;

[0043] Bag shaping part 12: first frame 121, first lifting adjustment unit 122, first mounting bracket 123, straightening drive unit 124, first straightening member 125, second straightening member 126, first straightening drive member 1241, second straightening drive member 1242, first plate frame 1251, first brush 1252, second plate frame 1261, second brush 1262;

[0044] Bag handling mechanism 20:

[0045] Moving part 21;

[0046] Base 22;

[0047] Holding drive part 23: first translation drive member 231, second translation drive member 232;

[0048] The first holding part 24: the first sliding bracket 241, the first adsorption unit 242, the first lifting unit 243, the first translation unit 244, the first straightening part 245

[0049] The second holding part 25: the second sliding bracket 251, the second adsorption unit 252, the second lifting unit 253, the second translation unit 254, the second straightening part 255

[0050] The bag opening mechanism 30:

[0051] The clamping part 31: the third lifting unit 311, the clamping piece 312;

[0052] The cutting part 32: the second lifting and adjusting unit 321, the second mounting bracket 322, the cutter driving unit 323, the first cutter assembly 324, the second cutter assembly 325, the first cutter driving part 3231, the second cutter driving part 3232, the first tool holder 3241, the first cutter 3242, the first limit block 3243, the second tool holder 3251, the second cutter 3252, the second limit block 3253;

[0053] The second machine frame 33. Specific embodiments

[0054] To make the above objects, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] As Figures 1 to 2 shown, the embodiment of the present application provides a bag feeding mechanism, which is configured to supply a bag 100 containing materials. The bag 100 includes a body 101 defining a receiving cavity, and a sealing tongue 102 for closing the receiving cavity is formed at the top of the body 101. The bag 100 can be a bag for packaging silicon materials. Of course, the bag 100 can also be a bag for packaging other materials.

[0056] The bag feeding mechanism 10 in the embodiment of the present application includes a bag input part 11 and a bag shaping part 12, wherein:

[0057] The bag input part 11 is configured to convey the bag 100 to the bag shaping part 12.

[0058] The bag shaping part 12 is configured to abut against the sealing tongue 102 of the bag 100 from both sides and straighten the sealing tongue 102 upward.

[0059] The bag feeding mechanism 10 provided by the embodiment of the present application can straighten the sealing tongue 102 of the bag 100 during the feeding and conveying process, so as to ensure that the subsequent bag opening mechanism can smoothly clamp the sealing tongue 102 of the bag 100 and perform the opening operation on the bag 100, thereby improving the bag opening efficiency.

[0060] As Figures 1 to 4 shown, optionally, the bag shaping part 12 includes a first frame 121, a first lifting and adjusting unit 122, a first mounting bracket 123, a straightening driving unit 124, a first straightening member 125 and a second straightening member 126, wherein: both ends of the first mounting bracket 123 are slidably connected to the first frame 121 and are in transmission connection with the first lifting and adjusting unit 122 arranged on the first frame 121. The first straightening member 125 and the second straightening member 126 are slidably connected to the first mounting bracket 123 and are respectively in transmission connection with the straightening driving unit 124 arranged on the first mounting bracket 123, and a straightening space is formed between the first straightening member 125 and the second straightening member 126. The first lifting and adjusting unit 122 is configured to drive the first mounting bracket 123 to descend so that the sealing tongue 102 of the bag 100 at the shaping station extends into the straightening space. The straightening driving unit 124 is configured to drive the first straightening member 125 and the second straightening member 126 to slide towards the middle and close together, so that the first straightening member 125 and the second straightening member 126 abut against the bottom of the sealing tongue 102 from both sides. The first lifting and adjusting unit 122 is further configured to drive the first mounting bracket 123 to ascend to drive the first straightening member 124 and the second straightening member 125 to straighten the sealing tongue 102 upwards.

[0061] The optional working process of the bag shaping part 12 is as follows:

[0062] When the bag input part 11 transports the bag 100 in place, the first lifting and adjusting unit 122 drives the first mounting bracket 123 to descend, so that the sealing tongue 102 of the bag 100 extends into the straightening space between the first straightening member 125 and the second straightening member 126.

[0063] Then, the straightening driving unit 124 drives the first straightening member 125 and the second straightening member 126 to slide towards the middle and close together, so that the first straightening member 125 and the second straightening member 126 abut against the bottom of the sealing tongue 102 from both sides.

[0064] Finally, the first lifting and adjusting unit 122 drives the first mounting bracket 123 to ascend, thereby driving the first straightening member 125 and the second straightening member 125 to straighten the sealing tongue upwards.

[0065] It can be seen that through the combined driving of the first lifting and adjusting unit 122 and the straightening driving unit 124, the first straightening member 125 and the second straightening member 126 realize the clamping and straightening of the sealing tongue 102 of the bag 100.

[0066] Optionally, two first lifting adjustment units 122 are provided, and the two ends of the first mounting bracket 123 are respectively connected to the driving ends of the two first lifting adjustment units 122, and the two first lifting adjustment units 122 synchronously drive the first mounting bracket 123 to rise and fall from both ends, thereby ensuring the lifting stability of the first mounting bracket 123 and preventing the first mounting bracket 123 from tilting during the lifting process. The first lifting adjustment unit 122 can adopt various existing linear drive modules that can drive the first mounting bracket 123 to rise and fall, such as a cylinder, a screw motor, etc.

[0067] Optionally, the straightening drive unit 124 includes a first straightening drive member 1241 and a second straightening drive member 1242, wherein the driving end of the first straightening drive member 1241 is connected to the first straightening member 125, and the driving end of the second straightening drive member 1242 is connected to the second straightening member 125. The first straightening drive member 1241 and the second straightening drive member 1242 are configured to synchronously drive the first straightening member 125 and the second straightening member 126 to translate in opposite directions, so that the first straightening member 125 and the second straightening member 126 slide toward the middle or slide to both sides and separate.

[0068] Through the cooperative driving of the first straightening drive member 125 and the second straightening drive member 126, the first straightening member 125 and the second straightening member 126 realize the clamping and releasing of the sealing tongue 102. In addition, since the first straightening member 125 and the second straightening member 126 are driven by the first straightening drive member 1241 and the second straightening drive member 1242 respectively, the sliding strokes of the first straightening member 125 and the second straightening member 126 can be independently adjusted according to the position of the material bag 100, and finally ensure that the first straightening member 125 and the second straightening member 126 are synchronously abutted against both sides of the bottom of the sealing tongue 102.

[0069] The first straightening driving member 1241 and the second straightening driving member 1242 can both adopt existing translation driving members, such as a cylinder, a screw motor, etc.

[0070] Optionally, the first straightening member 125 includes a first plate frame 1251 and a first brush 1252, wherein the first plate frame 1251 is slidably connected to the first mounting bracket 123 and is in driving connection with the straightening drive unit 124, and both ends of the first brush 1252 are fixedly or rotatably connected to the first plate frame 1251. The second straightening member 126 includes a second plate frame 1261 and a second brush 1262, wherein the second plate frame 1261 is slidably connected to the first mounting bracket 123 and is in driving connection with the straightening drive unit 124, and both ends of the second brush 1262 are fixedly or rotatably connected to the second plate frame 1261. The second brush 1262 is located at the same height as the first brush 1252.

[0071] When the straightening drive unit 124 drives the first plate frame 1251 and the second plate frame 1261 to slide toward the middle, the first brush 1252 and the second brush 1262 are pressed against the bottom of the sealing tongue 102 from both sides. When the first lifting adjustment unit 122 drives the first mounting bracket 123 to rise, the first brush 1252 and the second brush 1262 move upward and straighten the sealing tongue.

[0072] After the first brush 1252 and the second brush 1262 are pressed against the bottom of the sealing tongue 102 from both sides, they are driven by the first lifting and adjusting unit 122 to move upward along the sealing tongue 102, thereby straightening the sealing tongue 102, ensuring the straightening effect while preventing jamming.

[0073] The present application also provides a bag opening device, such as Figure 5 As shown, the bag opening device comprises a bag loading mechanism 10, a bag conveying mechanism 20 and a bag opening mechanism 30 provided in any of the above embodiments, wherein: the bag loading mechanism 10 is configured to input a bag 100 to be opened and to straighten upward the sealing tongue 102 of the bag 100. The bag conveying mechanism 20 is configured to pick up and hold the bag 100 from the bag loading mechanism 10 and convey the bag 100 to the bag opening mechanism 30. The bag opening mechanism 30 is configured to cut the sealing tongue 102 of the bag 100.

[0074] Through the cooperation of the material bag loading mechanism 10 , the material bag conveying mechanism 20 and the material bag opening mechanism 30 , the material bag opening device provided in the embodiment of the present application realizes automatic opening of the material bag 100 .

[0075] like Figures 5 to 6 As shown, optionally, the bag handling mechanism 20 includes a moving part 21, a base 22, a holding driving part 23, a first holding part 24 and a second holding part 25, wherein: the base 22 is connected to the driving end of the moving part 21, and the holding driving part 23 is arranged on the base 22. The first holding part 24 and the second holding part 25 are slidably connected to the base 22, and are respectively connected to the holding driving part 23 by transmission, and a holding space for accommodating the bag is formed between the first holding part 24 and the second holding part 25. The moving part 21 is configured to drive the base 22 to move toward the bag 100 to be picked up, so that the bag 100 enters the holding space. The holding driving part 23 is configured to drive the first holding part 24 and the second holding part 25 to slide close to the middle, so as to hold the body of the bag 100 and the sealing tongue 102 of the bag 100.

[0076] It can be seen that, through the cooperative driving of the moving part 21 and the holding driving part 23, the first holding part 24 and the second holding part 25 hold the body 101 of the material bag 100 and the sealing tongue 102 of the material bag 100, and transport the held material bag 100 to the material bag opening mechanism 30, thereby realizing the automatic transport and loading of the material bag 100. Since the straightened sealing tongue is held during the transport process, the sealing tongue remains in an upright state, ensuring that the material bag opening mechanism can smoothly cut the sealing tongue 102 of the material bag 100.

[0077] Optionally, the holding driving part 23 includes a first translation driving member 231 and a second translation driving member 232, wherein: the driving end of the first translation driving member 231 is connected to the first holding part 24, and the driving end of the second translation driving member 232 is connected to the second holding part 25. The first translation driving member 231 and the second translation driving member 232 are configured to synchronously drive the first holding part 24 and the second holding part 25 to translate in opposite directions, so that the first holding part 24 and the second holding part 25 slide toward the middle or slide to both sides and separate.

[0078] Through the cooperative driving of the first translation driving member 231 and the second translation driving member 232, the first holding portion 24 and the second holding portion 25 realize the holding of the body 101 of the material bag 100 and the sealing tongue 102 of the material bag 100. In addition, since the first holding portion 24 and the second holding portion 25 are driven by the first translation driving member 231 and the second translation driving member 232 respectively, the sliding strokes of the first holding portion 24 and the second holding portion 25 can be independently adjusted according to the position of the material bag 100, and finally ensure that the first holding portion 24 and the second holding portion 25 can synchronously contact the material bag 100 from both sides, so as to cooperate to hold the body 101 of the material bag 100 and the sealing tongue 102 of the material bag 100.

[0079] like Figure 6 As shown, optionally, the first holding portion 24 includes a first sliding bracket 241, a first adsorption unit 242, a first lifting unit 243, a first translation unit 244 and a first straightening member 245, wherein: the first sliding bracket 241 is slidably connected to the base 22 and is in driving connection with the holding driving portion 23, the first adsorption unit 242 is arranged on the first sliding bracket 241, and the first adsorption unit 242 has a first adsorption surface facing the holding space. The first lifting unit 243 is arranged on the first sliding bracket 241, the first translation unit 244 is connected to the driving end of the first lifting unit 243, and the first straightening member 245 is connected to the driving end of the first translation unit 244.

[0080] The second holding part 25 includes a second sliding bracket 251, a second adsorption unit 252, a second lifting unit 253, a second translation unit 254 and a second straightening member 255, wherein: the second sliding bracket 251 is slidably connected to the base 22 and is in driving connection with the holding driving part 23, the second adsorption unit 252 is arranged on the second sliding bracket 251, and the second adsorption unit 252 has a second adsorption surface facing the holding space. The second lifting unit 253 is arranged on the second sliding bracket 251, the second translation unit 254 is connected to the driving end of the second lifting unit 253, and the second straightening member 255 is connected to the driving end of the second translation unit 254.

[0081] The first suction unit 242 and the second suction unit 253 are configured to suck the body 101 of the material bag 100 from both sides, and the first straightening member 245 and the second straightening member 255 are configured to abut against the sealing tongue 102 of the material bag 100 from both sides.

[0082] Optionally, after the material bag 100 is straightened and shaped, the first holding portion 24 and the second holding portion 25 cooperate to hold the shaped material bag 100. The specific process is as follows:

[0083] When the bag shaping unit 12 has completed straightening the sealing tongue of the bag 100 , the first holding unit 24 and the second holding unit 25 are driven by the moving unit 21 to move toward the bag 100 , so that the bag 100 enters the holding space between the first holding unit 24 and the second holding unit 25 .

[0084] Then, the holding driving unit 23 drives the first sliding bracket 241 and the second sliding bracket 251 to slide toward the middle, so that the first suction unit 242 and the second suction unit 252 suction the body 101 of the material bag 100 from both sides, thereby suctioning and fixing the body 101 of the material bag 100. That is, the first suction unit 242 suctions one side of the body 101 of the material bag 100, and the second suction unit 252 suctions the other side of the body 101 of the material bag 100.

[0085] Next, the first lifting unit 243 and the second lifting unit 253 drive the first straightening member 245 and the second straightening member 255 to rise and fall synchronously, so that the first straightening member 245 and the second straightening member 255 are aligned with the sealing tongue 102 of the bag 100 from both sides.

[0086] Finally, the first translation unit 244 and the second translation unit 254 drive the first straightening member 245 and the second straightening member 255 to translate synchronously toward the sealing tongue 102 of the bag 100, so that the first straightening member 245 and the second straightening member 255 are pressed against the sealing tongue 102 from both sides.

[0087] Optionally, the first holding part 24 and the second holding part 25 can also hold the plastic bag 100 during the straightening and shaping process. The specific process is as follows:

[0088] When the plastic bag 100 to be shaped is conveyed by the plastic bag input part 11 to the shaping station, the first holding part 24 and the second holding part 25 move towards the plastic bag 100 under the drive of the moving part 21, so that the plastic bag 100 enters the holding space between the first holding part 24 and the second holding part 25.

[0089] Subsequently, the holding drive part 23 drives the first sliding bracket 241 and the second sliding bracket 251 to slide towards the middle and close together, so that the first adsorption unit 242 and the second adsorption unit 252 adsorb the body 101 of the plastic bag 100 from both sides, thereby implementing the adsorption and fixation of the body 101 of the plastic bag 100. In this way, the position of the plastic bag 100 can be corrected, ensuring that the plastic bag shaping part 12 can smoothly straighten the sealing tongue 102 of the plastic bag 100.

[0090] Next, the plastic bag shaping part 12 completes the straightening of the sealing tongue 102 of the plastic bag 100.

[0091] Subsequently, the first lifting unit 243 and the second lifting unit 253 drive the first straightening member 245 and the second straightening member 255 to lift and lower synchronously, so that the first straightening member 245 and the second straightening member 255 are aligned with the sealing tongue 102 of the plastic bag 100 from both sides.

[0092] Finally, the first translation unit 244 and the second translation unit 254 drive the first straightening member 245 and the second straightening member 255 to translate synchronously towards the sealing tongue 102 of the plastic bag 100, so that the first straightening member 245 and the second straightening member 255 are close to the sealing tongue 102 from both sides.

[0093] It can be seen that by setting the first holding part 24 and the second holding part 25, on the one hand, it ensures the holding of the body 101 of the plastic bag 100 by the first holding part 24 and the second holding part 25, ensuring that the plastic bag handling mechanism 20 can smoothly handle the plastic bag 100. On the other hand, since the sealing tongue 102 of the plastic bag is close to from both sides by the first straightening member 245 of the first holding part 24 and the second straightening member 255 of the second holding part 25, it can ensure that the sealing tongue 102 of the plastic bag 100 remains upright during the handling process.

[0094] Such as Figure 7As shown, optionally, the bag opening mechanism 30 includes a second frame 33, a clamping part 31 and a cutting part 32, where: an opening station is provided inside the second frame 33, and the bag handling mechanism 20 transports the bag to the opening station. The clamping part 31 is arranged on the second frame 33 and above the opening station, and the clamping part 31 is configured to clamp the sealing tongue 102 of the bag 100 from above. After the clamping part 31 clamps the sealing tongue 102 of the bag 100, the first straightening member 245 and the second straightening member 255 are configured to release and leave the sealing tongue 102 of the bag 100. The cutting part 32 is arranged on the second frame 33. After the first straightening member 245 and the second straightening member 255 release and leave the sealing tongue 102 of the bag 100, the cutting part 32 is configured to cut open the sealing tongue 102 of the bag 100.

[0095] Before the first straightening member 245 and the second straightening member 255 release and leave the sealing tongue 102 of the bag 100, the clamping part 31 clamps the sealing tongue 102 of the bag 100 from above, so as to avoid touching and interfering with the first straightening member 245 and the second straightening member 255. After the clamping part 31 clamps the sealing tongue 102 of the bag 100 from above, the first straightening member 245 and the second straightening member 255 are controlled to move away from each other and descend, so as to release and leave the sealing tongue 102 of the bag 100, so that the opening position of the sealing tongue 102 is exposed, and the cutting part 32 can smoothly cut open the sealing tongue 102 of the bag 100 from the side. Both the first straightening member 245 and the second straightening member 255 can be strip plates, and the strip plates are used to directly press the sealing tongue 102, or a pressing block is arranged on one side of the strip plate to press the sealing tongue 102 by using the pressing block.

[0096] As Figure 8 shown, optionally, the clamping part 31 includes a third lifting unit 311 and a clamping member 312, where the third lifting unit 311 is arranged on the second frame 33, and the clamping member 312 is connected to the driving end of the third lifting unit 311. The third lifting unit 311 is configured to drive the clamping member 312 to descend towards the opening station, so that the clamping member 312 clamps the sealing tongue 102 of the bag 100 from above.

[0097] The third lifting unit 311 can adopt various existing linear driving modules capable of driving the clamping member 312 to lift, such as air cylinders, screw motors, etc. In order to ensure the clamping force on the sealing tongue 102 of the bag 100, two clamping members 312 can be arranged, and the two clamping members 312 clamp the sealing tongue 102 of the bag 100 from two different positions. The clamping member 312 can be, for example, a clamping jaw driven by a clamping jaw cylinder.

[0098] As Figure 9As shown, optionally, the cutting part 32 includes a second lifting and adjusting unit 321, a second mounting bracket 322, a cutter driving unit 323, a first cutter assembly 324 and a second cutter assembly 325, wherein: both ends of the second mounting bracket 322 are slidably connected to the second frame 33, and are in driving connection with the second lifting and adjusting unit 321 disposed on the second frame 33. The first cutter assembly 324 and the second cutter assembly 325 are slidably connected to the second mounting bracket 322, and are respectively in driving connection with the cutter driving unit 323 disposed on the second mounting bracket 322, and a cutting space is formed between the first cutter assembly 324 and the second cutter assembly 325. The second lifting and adjusting unit 321 is configured to drive the second mounting bracket 322 to descend, so that the sealing tongue 102 of the bag 100 transported to the opening station extends into the cutting space. The cutter driving unit 323 is configured to drive the first cutter assembly 324 and the second cutter assembly 325 to slide toward the middle so that the first cutter assembly 324 and the second cutter assembly 325 are butted against each other to cut the sealing tongue 102 of the material bag 100 .

[0099] The working process of the cutting unit 32 is as follows:

[0100] After the bag transporting mechanism 20 transports the bag 100 to the opening station, the second lifting and adjusting unit 321 drives the second mounting bracket 322 to descend, so that the sealing tongue 102 of the bag 100 extends into the cutting space between the first cutter assembly 324 and the second cutter assembly 325 .

[0101] Next, the cutter driving unit 323 drives the first cutter assembly 324 and the second cutter assembly 325 to slide toward the middle, so that the first cutter assembly 324 and the second cutter assembly 325 are butted against each other to cut the sealing tongue 102 of the material bag 100 .

[0102] It can be seen that, through the cooperative driving of the second lifting adjustment unit 321 and the cutter driving unit 323 , the first cutter assembly 324 and the second cutter assembly 325 realize automatic cutting of the sealing tongue 102 of the material bag 100 .

[0103] Optionally, two second lifting adjustment units 321 are provided, and the two ends of the second mounting bracket 322 are respectively connected to the driving end of one of the second lifting adjustment units 321. The two second lifting adjustment units 321 synchronously drive the second mounting bracket 322 to rise and fall from both ends, thereby ensuring the lifting stability of the second mounting bracket 322 and preventing the second mounting bracket 322 from tilting during the lifting process. The second lifting adjustment unit 321 can adopt various existing linear drive modules that can drive the second mounting bracket 322 to rise and fall, such as a cylinder.

[0104] Optionally, the cutter driving unit 323 includes a first cutter driving member 3231 and a second cutter driving member 3232. Among them, the driving end of the first cutter driving member 3231 is connected to the first cutter assembly 324, and the second cutter driving member 3232 is connected to the second cutter assembly 325. The first cutter driving member 3231 and the second cutter driving member 3232 are configured to synchronously drive the first cutter assembly 324 and the second cutter assembly 325 to translate in opposite directions, so that the first cutter assembly 324 and the second cutter assembly 325 slide towards the middle and close together or slide apart towards both sides.

[0105] Through the cooperative driving of the first cutter driving member 3231 and the second cutter driving member 3232, the first cutter assembly 324 and the second cutter assembly 325 realize the automatic cutting of the sealing tongue 102 of the material bag 100. In addition, since the first cutter assembly 324 and the second cutter assembly 325 are respectively driven by the first cutter driving member 3231 and the second cutter driving member 3232, the sliding strokes of the first cutter assembly 324 and the second cutter assembly 325 can be independently adjusted according to the position of the material bag 100, ultimately ensuring that both the first cutter assembly 324 and the second cutter assembly 325 can contact the sealing tongue 102 of the material bag 100 and cooperate to implement the automatic cutting of the sealing tongue 102 of the material bag 100.

[0106] Optionally, the first cutter assembly 324 includes a first tool holder 3241, a first cutter 3242 and at least one first limiting block 3243. Among them, the first tool holder 3241 is slidably connected to the second mounting bracket 322 and is in transmission connection with the cutter driving unit 323, and the first cutter 3242 and the first limiting block 3243 are mounted on the first tool holder 3241. Similarly, the second cutter assembly 325 includes a second tool holder 3251, a second cutter 3252 and at least one second limiting block 3253 corresponding to the first limiting block 3243 one by one. Among them, the second tool holder 3251 is slidably connected to the second mounting bracket 322 and is in transmission connection with the cutter driving unit 323, and the second cutter 3252 and the second limiting block 3253 are mounted on the second tool holder 3251.

[0107] When the cutter driving unit 323 drives the first tool holder 3241 and the second tool holder 3251 to slide towards the middle and close together, the first limiting block 3243 abuts against the corresponding second limiting block 3253, and the first cutter 3242 and the second cutter 3252 are butted to cut the sealing tongue 102 of the material bag 100.

[0108] It can be seen that by setting the first cutter assembly 324 and the second cutter assembly 325, the first cutter 3242 and the second cutter 3252 can be butted to cut the sealing tongue 102 of the material bag 100.

[0109] In addition, since a first limiting block 3243 is provided on the first tool block 3241 and a second limiting block 3253 matching the first limiting block 3243 is provided on the second tool block 3251. Therefore, when the first cutting tool 3242 and the second cutting tool 3252 are butted, they can be stopped in time to prevent overpressure of the first cutting tool 3242 and the second cutting tool 3252, and pressure loss is generated.

[0110] The above description of the present application is detailed enough and has a certain particularity. Those of ordinary skill in the art should understand that the description in the embodiments is only exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the protection scope of the present application. The scope of protection required by the present application is defined by the said claims, rather than by the above description in the embodiments.

Claims

1. A bag feeding mechanism, characterized in that: The material bag is configured to supply a material bag filled with material, the material bag comprises a body defining a receiving cavity, a sealing tongue for closing the receiving cavity is formed on the top of the body, and the material bag feeding mechanism comprises a material bag input part and a material bag shaping part, wherein: The material bag input part is configured to convey the material bag to the material bag shaping part; The bag shaping part is configured to abut against the sealing tongue of the bag from both sides and straighten the sealing tongue upwards; The bag shaping unit includes a first frame, a first lifting adjustment unit, a first mounting bracket, a straightening drive unit, a first straightening member and a second straightening member, wherein: Both ends of the first mounting bracket are slidably connected to the first frame and are drivingly connected to the first lifting and adjusting unit arranged on the first frame; The first straightening member and the second straightening member are slidably connected to the first mounting bracket, and are respectively transmission-connected to the straightening drive unit disposed on the first mounting bracket; The first lifting and lowering adjustment unit is configured to drive the first mounting bracket to rise and fall; The straightening drive unit is configured to drive the first straightening member and the second straightening member to slide toward the middle.

2. The material bag feeding mechanism according to claim 1, characterized in that: A straightening space is formed between the first straightening member and the second straightening member; The first lifting and adjusting unit is configured to drive the first mounting bracket to descend so that the sealing tongue of the material bag extends into the straightening space; The straightening drive unit is configured to drive the first straightening member and the second straightening member to slide toward the middle so that the first straightening member and the second straightening member are pressed against the bottom of the sealing tongue from both sides; The first lifting and adjusting unit is configured to drive the first straightening member and the second straightening member to straighten the sealing tongue upward when driving the first mounting bracket to rise.

3. The material bag feeding mechanism according to claim 2, characterized in that: The straightening drive unit comprises a first straightening drive member and a second straightening drive member, wherein a driving end of the first straightening drive member is connected to the first straightening member, and a driving end of the second straightening drive member is connected to the second straightening member; The first straightening driving member and the second straightening driving member are configured to synchronously drive the first straightening member and the second straightening member to translate in opposite directions, so that the first straightening member and the second straightening member slide toward the middle or slide toward both sides and separate.

4. The material bag feeding mechanism according to claim 2, characterized in that: The first straightening member comprises a first plate frame and a first brush, wherein the first plate frame is slidably connected to the first mounting bracket and is transmission-connected to the straightening drive unit, and both ends of the first brush are fixedly or rotatably connected to the first plate frame; The second straightening member comprises a second plate frame and a second brush, wherein the second plate frame is slidably connected to the first mounting bracket and is drivingly connected to the straightening drive unit, both ends of the second brush are fixedly or rotatably connected to the second plate frame, and the second brush is located at the same height as the first brush; When the straightening drive unit drives the first plate frame and the second plate frame to slide toward the middle, the first brush and the second brush abut against the bottom of the sealing tongue from both sides; When the first lifting and adjusting unit drives the first mounting bracket to rise, the first brush and the second brush move upward and straighten the sealing tongue.

5. A bag opening device, characterized in that: The material bag opening device comprises a material bag loading mechanism, a material bag conveying mechanism and a material bag opening mechanism as claimed in any one of claims 1 to 4, wherein: The material bag loading mechanism is configured to input the material bag to be opened and straighten the sealing tongue of the material bag upwards; The material bag conveying mechanism is configured to pick up and hold the material bag from the material bag loading mechanism, and convey the material bag to the material bag opening mechanism; The bag opening mechanism is configured to cut open the sealing tongue of the bag.

6. The bag opening device according to claim 5, characterized in that: The bag transport mechanism includes a moving part, a base, a holding driving part, a first holding part and a second holding part, wherein: The base is connected to the driving end of the moving part, and the holding driving part is arranged on the base; The first holding part and the second holding part are slidably connected to the base and are respectively connected to the holding driving part in a transmission manner, and a holding space for accommodating the material bag is formed between the first holding part and the second holding part; The moving part is configured to drive the base to move toward the bag to be picked up so that the bag enters the holding space; the holding drive part is configured to drive the first holding part and the second holding part to slide toward the middle to hold the body of the bag and the sealing tongue of the bag.

7. The bag opening device according to claim 6, characterized in that: The holding driving part includes a first translation driving member and a second translation driving member, wherein: a driving end of the first translation driving member is connected to the first holding part, and a driving end of the second translation driving member is connected to the second holding part; The first translation driving member and the second translation driving member are configured to synchronously drive the first holding portion and the second holding portion to translate in opposite directions, so that the first holding portion and the second holding portion slide together toward the middle or slide apart toward both sides.

8. The bag opening device according to claim 6, characterized in that: The first holding portion includes a first sliding bracket, a first adsorption unit, a first lifting unit, a first translation unit and a first straightening member, wherein: The first sliding bracket is slidably connected to the base and is drivingly connected to the holding driving part. The first adsorption unit is arranged on the first sliding bracket. The first adsorption unit has a first adsorption surface facing the holding space. The first lifting unit is arranged on the first sliding bracket. The first translation unit is connected to the driving end of the first lifting unit. The first straightening member is connected to the driving end of the first translation unit. The second holding portion includes a second sliding bracket, a second adsorption unit, a second lifting unit, a second translation unit and a second straightening member, wherein: The second sliding bracket is slidably connected to the base and is drivingly connected to the holding driving part, the second adsorption unit is arranged on the second sliding bracket, the second adsorption unit has a second adsorption surface facing the holding space, the second lifting unit is arranged on the second sliding bracket, the second translation unit is connected to the driving end of the second lifting unit, and the second straightening member is connected to the driving end of the second translation unit; The first adsorption unit and the second adsorption unit are configured to adsorb the body of the material bag from both sides, and the first straightening member and the second straightening member are configured to abut against the sealing tongue of the material bag from both sides.

9. The bag opening device according to claim 5, characterized in that: The bag opening mechanism comprises a second frame, a clamping portion and a cutting portion, wherein: An opening station is provided in the second frame, and the bag conveying mechanism conveys the bag to the opening station; The clamping part is arranged on the second frame and is located above the opening station, and the clamping part is configured to clamp the sealing tongue of the material bag from above; after the clamping part clamps the sealing tongue of the material bag, the first straightening member and the second straightening member are configured to release and leave the sealing tongue of the material bag; The cutting part is disposed on the second frame, and the cutting part is configured to cut open the sealing tongue of the material bag.

10. The bag opening device according to claim 9, characterized in that: The cutting part includes a second lifting adjustment unit, a second mounting bracket, a cutter driving unit, a first cutter assembly and a second cutter assembly, wherein: Both ends of the second mounting bracket are slidably connected to the second frame and are drivingly connected to the second lifting and adjusting unit arranged on the second frame; The first cutter assembly and the second cutter assembly are slidably connected to the second mounting bracket and are respectively connected to the cutter driving unit arranged on the second mounting bracket, and a cutting space is formed between the first cutter assembly and the second cutter assembly; The second lifting and adjusting unit is configured to drive the second mounting bracket to descend so that the sealing tongue of the material bag transported to the opening station extends into the cutting space; The cutter driving unit is configured to drive the first cutter assembly and the second cutter assembly to slide toward the middle so that the first cutter assembly and the second cutter assembly are butted against each other to cut the sealing tongue of the material bag.

11. The bag opening device according to claim 10, characterized in that: The cutter drive unit comprises a first cutter drive member and a second cutter drive member, wherein a driving end of the first cutter drive member is connected to the first cutter assembly, and the second cutter drive member is connected to the second cutter assembly; The first cutter driving member and the second cutter driving member are configured to synchronously drive the first cutter assembly and the second cutter assembly to translate in opposite directions, so that the first cutter assembly and the second cutter assembly slide together toward the middle or slide apart toward both sides.

12. The bag opening device according to claim 10, characterized in that: The first cutter assembly comprises a first cutter seat, a first cutter and at least one first stop block, wherein the first cutter seat is slidably connected to the second mounting bracket and is transmission-connected to the cutter drive unit, and the first cutter and the first stop block are mounted on the first cutter seat; The second cutter assembly comprises a second cutter seat, a second cutter and at least one second stop block corresponding to the first stop block, wherein the second cutter seat is slidably connected to the second mounting bracket and is transmission-connected to the cutter drive unit, and the second cutter and the second stop block are mounted on the second cutter seat; When the cutter driving unit drives the first cutter seat and the second cutter seat to slide toward the middle, the first limit block abuts against the corresponding second limit block, and the first cutter and the second cutter are connected to cut the sealing tongue of the material bag.

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