Filter bag inner frame pre-assembly machine

Abstract

The application discloses a filter bag inner frame pre-assembly machine, which comprises a positioning and bag opening device, a turnover device, a gantry and a material taking and clamping device which is installed on the gantry and can move along three axes of XYZ. The mouth of the filter bag is opened through the positioning and bag opening device, the filter bag is rotated through the turnover device so that the mouth faces upward, and the inner frame is clamped and pressed on the inner side of the mouth of the filter bag through the material taking and clamping device. The application can realize automatic grabbing, automatic positioning, automatic opening and automatic turnover of the filter bag, and can realize automatic material taking of the inner frame and automatic clamping and pressing of the inner frame and the mouth of the filter bag, so that the pre-assembly of the filter bag and the inner frame is realized, manual work is reduced, the automation degree and efficiency of the above process are improved, and the pace of automation of the whole filter assembly process is accelerated.

Description

Technical Field

[0001] This invention relates to the field of mechanical device technology, and in particular to a filter bag inner frame pre-assembly machine. Background Technology

[0002] Bag filters are used in fresh air filtration systems or equipment. A bag filter consists of multiple (e.g., six) filter bags assembled side-by-side. The process is roughly as follows: one end of the filter bag is open. First, adhesive is sprayed onto the outer circumference of the inner frame. Then, the adhesive-coated inner frame is placed inside the opening of the filter bag and the two are pressed and clamped together (this can be called a composite clamping of the filter bag and the inner frame). Next, two adjacent filter bags (mainly the inner frames) are riveted together. Finally, a large outer frame assembles the inner frames of the multiple filter bags together. To automate this process, each step must be automated. In current technology, the process of placing the adhesive-coated inner frame inside the opening of the filter bag and pressing and clamping them together is generally done manually, which has problems such as low efficiency, low automation, high labor costs, and unsatisfactory pressing effect. Summary of the Invention

[0003] The main technical problem solved by this invention is to provide a filter bag inner frame pre-assembly machine. Each mechanism operates stably and can automatically grasp, position, expand, and flip the filter bag. It can also automatically pick up the inner frame and automatically clamp and press the inner frame with the opening of the filter bag. Therefore, it can realize the pre-assembly of the filter bag and the inner frame, reduce manual labor, improve the automation level and efficiency of the above process, and accelerate the automation of the entire filter assembly process.

[0004] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: to provide a filter bag inner frame pre-assembly machine, the pre-assembly machine including a positioning and bag opening device, a flipping device, a gantry frame and a material picking and clamping device installed on the gantry frame and capable of moving along the XYZ three axes. The positioning and bag opening device opens the mouth of the filter bag, the flipping device drives the filter bag to rotate so that its mouth faces upward, and the material picking and clamping device clamps the inner frame and presses it against the inside of the mouth of the filter bag.

[0005] The positioning and bag opening device includes a pre-assembly machine, on which a positioning platform, an upper bag opening mechanism, and a bag picking mechanism for gripping filter bags and capable of translating along the X and Z axes are provided. The front end of the positioning platform is provided with several positioning base plates, a lower bag opening mechanism, and a bag pushing mechanism.

[0006] The bag pushing mechanism includes a bag pushing plate and a bag pushing translation driving unit capable of driving the bag pushing plate to translate. The bag pushing plate is driven to translate along the X direction by the bag pushing translation driving unit.

[0007] The filter bag is picked up by the bag-grabbing mechanism and placed on the positioning platform. The bag-pushing translation drive unit pushes the bag-pushing plate to translate and cooperate with the positioning base plate to accurately position the filter bag. The upper bag-opening mechanism inserts the upper layer of the filter bag and moves it upward, and the lower bag-opening mechanism inserts the lower layer of the filter bag and moves it downward, thereby opening the mouth of the filter bag.

[0008] The flipping device includes a flipping frame and two sets of bag-supporting devices disposed on the flipping frame, a Y-direction bag-supporting drive mechanism that can drive the two bag-supporting devices to move closer or further apart along the Y direction, a flipping drive mechanism that can drive the flipping frame to flip, and a flipping frame translation drive mechanism that drives the flipping frame to translate along the X direction. The two bag-supporting devices make the opening of the filter bag open. The flipping drive mechanism drives the flipping frame to flip, causing the filter bag to flip so that its opening faces upward. The flipping frame translation drive mechanism drives the flipping frame to translate along the X direction.

[0009] The material picking clamping device includes a material picking base, two material picking base plates, a set of middle inner frame clamping mechanisms, two sets of side inner frame clamping mechanisms, an X-axis material picking clamping translation drive mechanism, and a variable pitch drive mechanism. Both material picking base plates are installed on the bottom surface of the material picking base and can move closer or further away from each other in the X-axis direction through the X-axis material picking clamping translation drive mechanism.

[0010] The intermediate inner frame clamping mechanism is fixed at the middle position of the material picking base plate. The two sets of side inner frame clamping mechanisms are mirror-symmetrical about the intermediate inner frame clamping mechanism and movably installed on the material picking base plate. The intermediate inner frame clamping mechanism and the two sets of side inner frame clamping mechanisms each include two inner frame support clamping assemblies installed on the material picking base plate. The two inner frame support clamping assemblies of each side inner frame clamping mechanism are simultaneously installed on the same connecting plate. The two connecting plates can be driven to move closer or further away along the Y direction by a variable pitch drive mechanism.

[0011] Each of the inner frame support clamping assemblies includes an inner support plate and a long side outer clamping unit. The upper end of the long side outer clamping unit is installed on the upper part of the inner support plate. The inner frame is supported from the inside out by all the inner support plates, and the long side of the inner frame and the opening of the filter bag are pressed and clamped by the long side outer clamping unit.

[0012] Furthermore, the positioning platform has several strip-shaped grooves extending along the X direction; the bag-pushing translation drive unit includes a bag-pushing translation drive motor, two third synchronous pulleys, a fourth synchronous belt, and a bag-pushing seat. The third synchronous pulleys are located at both ends of the bottom of the positioning platform, one of which is installed at the power output end of the bag-pushing translation drive motor. The fourth synchronous belt is fitted onto the third synchronous pulley, and the bag-pushing seat is fixed on the fourth synchronous belt. The upper end of the bag-pushing seat extends out from the strip-shaped groove and is fixedly installed with the bag-pushing plate.

[0013] Furthermore, the upper bag opening mechanism includes an upper needle suction cup and an upper bag opening drive linear module. The upper needle suction cup is installed at the power output end of the upper bag opening drive linear module, and the upper needle suction cup is driven to rise and fall by the upper bag opening drive linear module.

[0014] The lower opening bag mechanism includes a lower needle suction cup and a lower opening bag driving cylinder. The lower needle suction cup is installed at the power output end of the lower opening bag driving cylinder, and the lower needle suction cup is driven to rise and fall by the lower opening bag driving cylinder.

[0015] The bag-retrieving mechanism includes a connecting arm and a suction cup assembly consisting of multiple needle-type suction cups, the suction cup assembly being mounted on the lower end of the connecting arm.

[0016] Furthermore, the bag-supporting device includes an insert plate and a fixed insert, a movable insert, and an insert translation drive linear module that can drive the movable insert to rise and fall. The fixed insert is fixed to one end of the insert plate, and the movable insert is driven to rise and fall by the insert translation drive linear module.

[0017] Furthermore, the Y-direction bag-supporting drive mechanism includes a Y-direction bag-supporting drive motor, a fourth synchronous pulley, and a fifth synchronous belt. The fourth synchronous pulley is located at both ends of the flipping frame, and the fifth synchronous belt is fitted onto the fourth synchronous pulley. The Y-direction bag-supporting drive motor drives the fourth synchronous pulley to rotate.

[0018] The insert plates of the two support bag devices are respectively fixed to different ends on different sides of the fifth synchronous belt.

[0019] Furthermore, the inner side of the inner support plate of the side-mounted inner frame clamping mechanism is provided with a short-side outer clamping unit, which clamps the short side of the inner frame and the opening of the filter bag by means of the short-side outer clamping units on both sides.

[0020] The short-side outer clamping unit includes a short-side outer clamping drive cylinder and a vertical clamping plate, wherein the vertical clamping plate is installed at the power output end of the short-side outer clamping drive cylinder.

[0021] Furthermore, the long side outer clamping unit includes a long side outer clamping drive cylinder, an inverted "T"-shaped clamping plate and a pin. The upper end of the "T"-shaped clamping plate is rotatably connected to one side of the bottom of the long side outer clamping drive cylinder as a fulcrum. A cavity is provided in the middle of the "T"-shaped clamping plate, and the pin passes through the cavity and is rotatably connected to the end of the push rod of the long side outer clamping drive cylinder.

[0022] The retraction or extension of the push rod driven by the clamping cylinder on the long side will cause the upper end of the "T"-shaped clamp to rotate around the fulcrum, which in turn will cause the lower end of the "T"-shaped clamp to move closer to or away from the inner support plate.

[0023] Furthermore, the variable pitch drive mechanism includes a variable pitch drive motor, a variable pitch lead screw, and two variable pitch nuts. The power output end of the variable pitch drive motor is connected to one end of the variable pitch lead screw. The variable pitch lead screw is a bidirectional lead screw with threads having different directions of rotation. The two variable pitch nuts are respectively fixed to the two connecting plates and respectively fitted onto the left and right sections of the variable pitch lead screw. The material picking base plate and the material picking base are also connected by a slider and slide rail structure.

[0024] Furthermore, the X-axis material picking, clamping, and translating drive mechanism includes an X-axis material picking, clamping, and translating drive motor, an X-axis lead screw, and two X-axis nuts. The power output end of the X-axis material picking, clamping, and translating drive motor is connected to one end of the X-axis lead screw. The X-axis lead screw is a bidirectional lead screw with threads having different directions of rotation. The two X-axis nuts are respectively fixed to the two material picking base plates and are respectively fitted onto the front and rear sections of the X-axis lead screw. The material picking base plate and the material picking base are also connected by a slider and slide rail structure.

[0025] Furthermore, the gantry includes two X-direction crossbeams, a Y-direction crossbeam, and a Z-direction beam. The two ends of the Y-direction crossbeam are slidably connected to the X-direction crossbeams, and the Z-direction beam can slide along the Y-direction surface of the Y-direction crossbeam.

[0026] The Z-axis inner frame translation drive mechanism, which can drive the material clamping device to translate along the Z-axis, includes a Z-axis inner frame translation drive motor, a drive wheel, an upper idler wheel, a lower idler wheel, and a belt. The drive wheel is located above the upper idler wheel, and the upper idler wheel is located above the lower idler wheel. The upper end of the belt is fixed to the upper end of the Z-axis beam. At the same time, the belt wraps around from below the upper idler wheel to the outer periphery of the drive wheel, then wraps around from above the lower idler wheel, and finally the lower end of the belt is fixed to the lower end of the Z-axis beam.

[0027] The beneficial effects of this invention are:

[0028] The various mechanisms of this invention operate stably, enabling automatic gripping, positioning, opening, and flipping of the filter bag. They also enable automatic material handling of the inner frame and automatic clamping and pressing of the inner frame with the opening of the filter bag. Therefore, pre-assembly of the filter bag and inner frame is possible, reducing manual labor, improving the automation level and efficiency of the above processes, and accelerating the automation of the entire filter assembly process. Thus, it has at least the following advantages:

[0029] I. In the positioning and bag opening device of this invention, the bag-grabbing mechanism grabs the filter bag onto the positioning platform, and the bag-pushing translation drive unit pushes the bag-pushing plate to translate and cooperate with the positioning base plate to accurately position the filter bag; the upper bag opening mechanism inserts the upper layer of the filter bag and moves it upward, and the lower bag opening mechanism inserts the lower layer of the filter bag and moves it downward, thereby opening the mouth of the filter bag; therefore, the positioning and bag opening device of this invention has an ingenious structural design, which can realize automatic grabbing, automatic positioning and automatic opening of the filter bag, with a high degree of automation and high efficiency, and can ensure the consistency of the opening degree of the filter bag, which facilitates the smooth progress of the subsequent assembly process with the inner frame.

[0030] II. The material-grabbing clamping device of this invention includes a central inner frame clamping mechanism, two sets of side inner frame clamping mechanisms, an X-axis material-grabbing clamping translation drive mechanism, and a variable-pitch drive mechanism. The X-axis material-grabbing clamping translation drive mechanism can drive the two inner frame support clamping components of the central inner frame clamping mechanism and the two sets of side inner frame clamping mechanisms to move closer and further apart, thus supporting the inner frame to achieve material grabbing. Then, the long side outer clamping unit presses and clamps the long side of the inner frame and the opening of the filter bag together. Simultaneously, the short side outer clamping unit... The outer clamping unit presses and clamps the short side of the inner frame and the opening of the filter bag together, thus achieving the pre-assembly (or composite clamping) of the opening of the filter bag and the glued inner frame. Then, the inner frames of the openings of adjacent filter bags are riveted together through downstream processes. Therefore, the material handling clamping device of this invention adopts an automated operation mode to realize the inner frame support and pre-assembly of the inner frame with the opening of the filter bag, which facilitates subsequent operation processes, saves a lot of labor, and selects stable mechanisms to reduce costs while ensuring quality.

[0031] Furthermore, the material clamping device of the present invention drives the side inner frame clamping mechanism to translate along the Y direction through the variable pitch drive mechanism to adjust the distance between it and the middle inner frame clamping mechanism, which can realize the assembly of inner frames and filter bags of different sizes and specifications, and improve the versatility of the composite clamping device.

[0032] Furthermore, the emergence of this filter bag inner frame pre-assembly machine makes it possible to realize fully automatic filter assembly, accelerating the pace of achieving fully automatic filter assembly; in addition, the present invention also has the characteristics of simplified structure, high speed and high efficiency and stable quality.

[0033] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0034] Figure 1 This is one of the structural schematic diagrams of the present invention (viewed from one angle);

[0035] Figure 2 This is the second structural schematic diagram of the present invention (viewed from another angle);

[0036] Figure 3 This is one of the structural schematic diagrams of the positioning and bag opening device of the present invention (viewed from one angle);

[0037] Figure 4 This is a second schematic diagram of the positioning and bag-opening device of the present invention (viewed from another angle);

[0038] Figure 5 This is one of the structural schematic diagrams of the positioning platform of the present invention (viewed from one angle);

[0039] Figure 6 This is a second structural schematic diagram of the positioning platform of the present invention (viewed from another angle);

[0040] Figure 7 This is a schematic diagram of the push-bag mechanism of the present invention;

[0041] Figure 8 This is one of the structural schematic diagrams of the flipping device of the present invention (viewed from one angle);

[0042] Figure 9 This is a second schematic diagram of the structure of the flipping device of the present invention (viewed from another angle);

[0043] Figure 10 This is a schematic diagram of the structure of the gantry frame and the material clamping device of the present invention;

[0044] Figure 11 This is a schematic diagram of the structure of the Z-axis beam and the material clamping device of the present invention;

[0045] Figure 12 This is one of the structural schematic diagrams of the material clamping device of the present invention;

[0046] Figure 13 This is the second structural schematic diagram of the material handling clamping device of the present invention (the material handling base is not installed in order to see the internal structure clearly);

[0047] Figure 14 This is a side view of the material clamping device of the present invention;

[0048] Figure 15 This is a schematic diagram of the structure of the short-side outer clamping unit of the present invention;

[0049] Figure 16 This is a structural schematic diagram of the gantry frame of the present invention;

[0050] Figure 17 This is a schematic diagram of the structure at the Y-direction crossbeam of the present invention;

[0051] Figure 18 This is one of the structural schematic diagrams of the Z-direction beam of the present invention (viewed from one angle);

[0052] Figure 19 This is the second structural schematic diagram of the Z-direction beam of the present invention (viewed from another angle);

[0053] The parts in the attached diagram are labeled as follows:

[0054] Filter bag 1001;

[0055] Gantry frame 1, X-direction crossbeam 11, Y-direction crossbeam 12, Z-direction beam 13, X-direction inner frame translation drive mechanism 14, X-direction inner frame translation drive motor 141, drive shaft 142, first synchronous pulley 143, first synchronous belt 144, second synchronous belt 145, Y-direction inner frame translation drive mechanism 15, Y-direction inner frame translation drive motor 151, second synchronous pulley 152, third synchronous belt 153, Z-direction inner frame translation drive mechanism 16, Z-direction inner frame translation drive motor 161, drive wheel 162, upper idler wheel 163, lower idler wheel 164, belt 165, mounting base 166;

[0056] Material clamping device 2, material clamping base 21, material clamping base plate 22, intermediate inner frame clamping mechanism 23, inner frame support clamping assembly 231, inner side support plate 2311, step 23111, long side outer clamping unit 2312, long side outer clamping drive cylinder 23121, "T" shaped clamping plate 23122, pin shaft 23123, fulcrum 23124, cavity 23125, side inner frame clamping mechanism 24. Connecting plate 241, X-direction oblong hole 2411, guide pin 2412, X-direction material picking, clamping, and translational drive mechanism 25, X-direction material picking, clamping, and translational drive motor 251, X-direction lead screw 252, X-direction nut 253, pitch-changing drive mechanism 26, pitch-changing drive motor 261, pitch-changing lead screw 262, pitch-changing nut 263, short side outer clamping unit 27, short side outer clamping drive cylinder 271, vertical clamping plate 272

[0057] Positioning and bag opening device 3, pre-assembly machine 31, positioning platform 32, positioning base plate 321, strip groove 322, upper bag opening mechanism 33, upper needle suction cup 331, upper bag opening drive linear module 332, bag picking mechanism 34, connecting arm 341, suction cup group 342, lower bag opening mechanism 35, lower needle suction cup 351, lower bag opening drive cylinder 352, bag pushing mechanism 36, bag pushing plate 361, bag pushing translation drive unit 362, bag pushing translation drive motor 3621, third synchronous pulley 3622, fourth synchronous belt 3623, bag pushing seat 3624, X-axis bag picking translation drive mechanism 37, Z-axis bag picking translation drive mechanism 38;

[0058] 4. Tilting device, 41. Tilting frame, 42. Y-direction bag support drive mechanism, 421. Y-direction bag support drive motor, 422. Fourth synchronous pulley, 423. Fifth synchronous belt, 43. Tilting drive mechanism, 44. Tilting frame translation drive mechanism, 45. First bag support device, 451. Insert plate, 452. Fixed insert plate, 453. Moving insert plate, 454. Insert plate translation drive linear module, 46. Second bag support device;

[0059] Filter bag feeding device 5. Detailed Implementation

[0060] The following specific embodiments illustrate the detailed implementation of the present invention. Those skilled in the art can easily understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed in the present invention.

[0061] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientation in the accompanying drawings, have no special meaning, and are not intended to limit the scope of protection of this invention.

[0062] Example: A filter bag inner frame pre-assembly machine, such as Figure 1 and Figure 2 As shown, the pre-assembly machine includes a positioning and bag opening device 3, a flipping device 4, a gantry frame 1, and a material picking and clamping device 2 installed on the gantry frame 1 and capable of moving along the XYZ three axes. The positioning and bag opening device opens the mouth of the filter bag, the flipping device drives the filter bag to rotate so that its mouth faces upward, and the material picking and clamping device clamps the inner frame and presses it against the inside of the mouth of the filter bag.

[0063] like Figures 3 to 7 As shown, the positioning and bag opening device 3 includes a pre-assembly machine 31. The pre-assembly machine is provided with a positioning platform 32, an upper bag opening mechanism 33, and a bag picking mechanism 34 for gripping the filter bag 1001 and being able to translate along the X-axis and Z-axis. The front end of the positioning platform is provided with several positioning base plates 321, a lower bag opening mechanism 35, and a bag pushing mechanism 36.

[0064] The bag pushing mechanism 36 includes a bag pushing plate 361 and a bag pushing translation driving unit 362 capable of driving the bag pushing plate 361 to translate. The bag pushing plate is driven to translate along the X direction by the bag pushing translation driving unit 362.

[0065] The filter bag is fed by the filter bag feeding device 5, and the bag picking mechanism 34 picks up the filter bag from the filter bag feeding device 5 and places it onto the positioning platform 32. The bag pushing translation drive unit 362 pushes the bag pushing plate 361 to translate and cooperate with the positioning base plate 321 to accurately position the filter bag. The upper bag opening mechanism 33 inserts the upper layer of the filter bag 1001 and moves it upward, and the lower bag opening mechanism 35 inserts the lower layer of the filter bag and moves it downward, thereby opening the mouth of the filter bag.

[0066] like Figures 3 to 7 As shown, the positioning and bag opening device 3 includes a pre-assembly machine 31. The pre-assembly machine is provided with a positioning platform 32, an upper bag opening mechanism 33, and a bag picking mechanism 34 for gripping the filter bag 1001 and being able to translate along the X-axis and Z-axis. The front end of the positioning platform is provided with several positioning base plates 321, a lower bag opening mechanism 35, and a bag pushing mechanism 36.

[0067] The positioning platform 32 has several strip grooves 322 extending along the X direction. The bag pushing mechanism 36 includes a bag pushing plate 361 and a bag pushing translation driving unit 362 that can drive the bag pushing plate 361 to translate. The bag pushing plate is driven to translate along the X direction by the bag pushing translation driving unit 362.

[0068] The filter bag is picked up by the bag-grabbing mechanism 34 and placed on the positioning platform 32. The bag-pushing translation drive unit 362 pushes the bag-pushing plate 361 to translate and cooperate with the positioning base plate 321 to accurately position the filter bag. The upper bag-opening mechanism 33 inserts the upper layer of the filter bag 1001 and moves it upward, and the lower bag-opening mechanism 35 inserts the lower layer of the filter bag and moves it downward, thereby opening the mouth of the filter bag.

[0069] In this embodiment, as Figures 3 to 7 As shown, the bag-pushing translation drive unit 362 includes a bag-pushing translation drive motor 3621, two third synchronous pulleys 3622, a fourth synchronous belt 3623, and a bag-pushing seat 3624. The third synchronous pulleys are located at both ends of the bottom of the positioning platform, one of which is installed at the power output end of the bag-pushing translation drive motor. The fourth synchronous belt is fitted onto the third synchronous pulley, and the bag-pushing seat is fixed to the fourth synchronous belt. The upper end of the bag-pushing seat extends out from the strip groove and is fixedly installed with the bag-pushing plate.

[0070] In this embodiment, as Figure 3 and Figure 4As shown, the upper bag opening mechanism 33 includes an upper needle-type suction cup 331 and an upper bag opening drive linear module 332. The upper needle-type suction cup is installed at the power output end of the upper bag opening drive linear module, and the upper needle-type suction cup is driven to rise and fall by the upper bag opening drive linear module. The needle-type suction cup is a type of modern suction cup technology, mainly using a thin needle-shaped rigid rod as the suction cup adsorption area. It features strong adsorption force, firm adsorption, and simple structure. The working principle of the needle-type suction cup is mainly achieved by creating negative pressure inside the suction cup, which is existing technology and will not be elaborated further.

[0071] In this embodiment, as Figure 3 and Figure 4 As shown, the lower opening bag mechanism 35 includes a lower needle suction cup 351 and a lower opening bag driving cylinder 352. The lower needle suction cup is installed at the power output end of the lower opening bag driving cylinder, and the lower needle suction cup is driven to rise and fall by the lower opening bag driving cylinder.

[0072] In this embodiment, as Figure 3 and Figure 4 As shown, the bag-retrieving mechanism 34 includes a connecting arm 341 and a suction cup group 342 composed of multiple needle-type suction cups, the suction cup group being installed at the lower end of the connecting arm.

[0073] In this embodiment, as Figure 3 and Figure 4 As shown, the X-axis bag-taking translation drive mechanism 37, which drives the bag-taking mechanism 34 to translate along the X-axis, is a linear module. It only needs to be able to drive the bag-taking mechanism to move stably up and down.

[0074] In this embodiment, the Z-axis bag-taking translation drive mechanism 38, which can drive the bag-taking mechanism 34 to translate along the Z-axis, and the subsequent Z-axis inner frame translation drive mechanism 16 (as shown in the image) Figure 18 and Figure 19 The mechanism and working principle are similar to those shown (see below), as detailed in the description. Of course, other Z-axis bag-picking and translational drive mechanisms can also be used, as long as they can achieve the function of driving the connecting arm to rise and fall. However, compared to the motor-driven screw and nut structure, the Z-axis bag-picking and translational drive mechanism in this embodiment has a longer drive stroke and runs more smoothly, thus meeting the requirements.

[0075] like Figure 1 , Figure 2 , Figure 8 and Figure 9As shown, the flipping device 4 includes a flipping frame 41 and two sets of bag-supporting devices disposed on the flipping frame, a Y-direction bag-supporting drive mechanism 42 capable of driving the two bag-supporting devices to move closer or further away along the Y direction, a flipping drive mechanism 43 capable of driving the flipping frame to flip, and a flipping frame translation drive mechanism 44 capable of driving the flipping frame to translate along the X direction. The two bag-supporting devices make the opening of the filter bag open, the flipping drive mechanism drives the flipping frame to flip so that the filter bag flips so that its opening faces upward, and the flipping frame translation drive mechanism drives the flipping frame to translate along the X direction.

[0076] like Figure 8 and Figure 9 As shown, the bag-supporting device includes an insert plate 451 and fixed inserts 452 and movable inserts 453 mounted on the insert plate, as well as a linear module 454 for driving the movable inserts to move up and down. The fixed inserts are fixed to one end of the insert plate, and the movable inserts are driven to move up and down by the linear module. There are many driving methods for the linear module; any method that can drive the movable inserts to move up and down is acceptable, and the structure is not limited. This is existing technology and will not be described in detail. In this embodiment, both the fixed inserts and the movable inserts are L-shaped inserts, and the working surface of the L-shaped inserts is a serrated surface. This increases friction, making it easier to keep the opening of the filter bag in an open state.

[0077] like Figure 8 and Figure 9 As shown, the Y-direction bag-supporting drive mechanism 42 includes a Y-direction bag-supporting drive motor 421, a fourth synchronous pulley 422, and a fifth synchronous belt 423. The fourth synchronous pulley is located at both ends of the flipping frame, and the fifth synchronous belt is fitted onto the fourth synchronous pulley. The Y-direction bag-supporting drive motor drives the fourth synchronous pulley to rotate.

[0078] like Figure 8 and Figure 9 As shown, the insert plates of the two bag-supporting devices are fixed to different ends on different sides of the fifth synchronous belt. The two bag-supporting devices are defined as the first bag-supporting device 45 and the second bag-supporting device 46. Specifically, the insert plate of the first bag-supporting device is fixed to the left end of the outer side of the synchronous belt, while the insert plate of the second bag-supporting device is fixed to the right end of the inner side of the synchronous belt. When the Y-axis bag-supporting drive motor drives the fourth synchronous pulley to rotate, causing the fifth synchronous belt to reciprocate, it will cause the two bag-supporting devices to move closer or further apart simultaneously.

[0079] In this embodiment, the flipping drive mechanism is a motor and reducer structure, which is existing technology and will not be described in detail. However, it is not limited to this; it is sufficient to drive the flipping frame to flip 90°.

[0080] In this embodiment, the tilting frame translation drive mechanism 44 is a structure of drive motor and synchronous pulley and synchronous belt, which is existing technology and will not be described in detail. However, it is not limited to this, as long as it can drive the tilting frame to translate along the X direction.

[0081] like Figures 10 to 19 As shown, the material picking clamping device 2 includes a material picking base 21, two material picking base plates 22, a set of middle inner frame picking clamping mechanisms 23, two sets of side inner frame picking clamping mechanisms 24, an X-direction material picking clamping translation drive mechanism 25, and a variable pitch drive mechanism 26. The two material picking base plates 22 are both installed on the bottom surface of the material picking base 21 and can move closer or further away from each other in the X direction through the X-direction material picking clamping translation drive mechanism 25.

[0082] The intermediate inner frame clamping mechanism 23 is fixed at the middle position of the material picking base plate 22. The two sets of side inner frame clamping mechanisms 24 are mirror-symmetrical about the intermediate inner frame clamping mechanism 23 and are movably installed on the material picking base plate 22. The intermediate inner frame clamping mechanism 23 and the two sets of side inner frame clamping mechanisms 24 each include two inner frame support clamping assemblies 231 installed on the material picking base plate. The two inner frame support clamping assemblies 231 of each side inner frame clamping mechanism 24 are simultaneously installed on the same connecting plate 241. The variable pitch drive mechanism 26 can drive the two connecting plates 241 to move closer or further away along the Y direction.

[0083] Each of the inner frame support clamping assemblies 231 includes an inner support plate 2311 and a long side outer clamping unit 2312. The upper end of the long side outer clamping unit 2312 is installed on the upper part of the inner support plate 2311. The inner frame is supported from the inside out by all the inner support plates 2311, and the long side of the inner frame and the opening of the filter bag are pressed and clamped by the long side outer clamping unit 2312.

[0084] In this embodiment, as Figures 10 to 19 As shown, the material picking clamping device 2 includes a material picking base 21, two material picking base plates 22, a set of middle inner frame picking clamping mechanisms 23, two sets of side inner frame picking clamping mechanisms 24, an X-direction material picking clamping translation drive mechanism 25, and a variable pitch drive mechanism 26. The two material picking base plates 22 are both installed on the bottom surface of the material picking base 21 and can move closer or further away from each other in the X direction through the X-direction material picking clamping translation drive mechanism 25.

[0085] The intermediate inner frame clamping mechanism 23 is fixed at the middle position of the material picking base plate 22. The two sets of side inner frame clamping mechanisms 24 are mirror-symmetrical about the intermediate inner frame clamping mechanism 23 and are movably installed on the material picking base plate 22. The intermediate inner frame clamping mechanism 23 and the two sets of side inner frame clamping mechanisms 24 each include two inner frame support clamping assemblies 231 installed on the material picking base plate. The two inner frame support clamping assemblies 231 of each side inner frame clamping mechanism 24 are simultaneously installed on the same connecting plate 241. The variable pitch drive mechanism 26 can drive the two connecting plates 241 to move closer or further away along the Y direction.

[0086] Each inner frame support clamping assembly 231 includes an inner support plate 2311 and a long-side outer clamping unit 2312. The upper end of the long-side outer clamping unit 2312 is mounted on the upper part of the inner support plate 2311. The inner frame is supported from the inside out by all the inner support plates 2311, and the long side of the inner frame and the opening of the filter bag are pressed and clamped together by the long-side outer clamping unit 2312. In this embodiment, the upper end of the inner support plate of the middle inner frame clamping mechanism is fixed to the material picking base plate, and the upper end of the inner support plate of the side inner frame clamping mechanism is slidably connected to the material picking base plate by a slider rail structure.

[0087] In this embodiment, as Figure 12 As shown, the outer side of the inner support plate 2311 is provided with a step 23111 to facilitate hooking onto the inner frame.

[0088] The X-axis material picking clamping and translation drive mechanism 25 simultaneously drives the two material picking base plates away along the X-axis, causing all the inner support plates to expand outward to support the inner frame. The aforementioned steps 23111 facilitate hooking the inner frame, preventing it from falling off due to slight shaking during movement.

[0089] In this embodiment, as Figures 11 to 14 As shown, the long side outer clamping unit 2312 includes a long side outer clamping drive cylinder 23121, an inverted "T"-shaped clamping plate 23122, and a pin 23123. The upper end of the "T"-shaped clamping plate is rotatably connected to one side of the bottom of the long side outer clamping drive cylinder as a fulcrum 23124. A cavity 23125 is provided in the middle position of the "T"-shaped clamping plate. The pin 23123 passes through the cavity 23125 and is rotatably connected to the end of the push rod of the long side outer clamping drive cylinder 23121.

[0090] The push rod is retracted or extended by the long side clamping drive cylinder 23121, which will cause the upper end of the "T" shaped clamp 23122 to rotate around the fulcrum, and in turn will cause the lower end of the "T" shaped clamp 23122 to move closer to or away from the inner support plate 2311.

[0091] The long-side outer clamping unit structure in this embodiment is ingeniously designed. First, it uses an inverted "T"-shaped clamping plate in conjunction with the inner support plate to increase the contact area between the "T"-shaped clamping plate and the filter bag opening, thereby increasing the pressing and bonding effect. Second, each set of inner frame support clamping components uses a long-side outer clamping drive cylinder to drive the "T"-shaped clamping plate to rotate around a fulcrum and cooperate with the inner support plate to press and bond the long side of the inner frame to the filter bag opening. The structure is simple, compact, occupies little space, and has a good pressing effect.

[0092] In this embodiment, as Figures 11 to 14 As shown, the inner side of the inner support plate of the side-mounted inner frame clamping mechanism 24 is provided with a short-side outer clamping unit 27. The short-side outer clamping units 27 on both sides press and clamp the short side of the inner frame and the opening of the filter bag together. In this embodiment, as... Figure 15 As shown, the short-side outer clamping unit 27 includes a short-side outer clamping drive cylinder 271 and a vertical clamping plate 272. The vertical clamping plate 272 is installed at the power output end of the short-side outer clamping drive cylinder 271. A protective pad, such as a plastic material with a certain elasticity, can be installed on the inner side of the vertical clamping plate to prevent damage to the inner frame and filter bag.

[0093] Because the inner frame itself is rigid, the short side outer clamping drive cylinder can drive the vertical plate to exert force inward, pushing the opening of the filter bag against the short side of the inner frame, thus bonding the two together.

[0094] In this embodiment, as Figures 11 to 14 As shown, the variable pitch drive mechanism 26 includes a variable pitch drive motor 261, a variable pitch lead screw 262, and two variable pitch nuts 263. The power output end of the variable pitch drive motor 261 is connected to one end of the variable pitch lead screw 262. The variable pitch lead screw 262 is a bidirectional lead screw with threads having different directions of rotation. The two variable pitch nuts 263 are respectively fixed on the two connecting plates 241, and the two variable pitch nuts 263 are respectively fitted onto the left and right sections of the variable pitch lead screw 262. The material picking base plate 22 and the material picking base 21 are also connected by a slider and slide rail structure. By driving the variable pitch lead screw to rotate through the variable pitch drive motor, the two variable pitch nuts move closer or further away, thereby realizing the movement of the two connecting plates and the two sets of side-picking inner frame clamping mechanisms to achieve variable pitch. The distance between the two inner frame clamping mechanisms and the middle inner frame clamping mechanism can be adjusted by a variable pitch drive motor and a variable pitch lead screw. In addition, the X-axis material picking clamping translation drive mechanism itself is a structure of motor and lead screw. Therefore, this composite clamping device can adapt to the pressing and bonding of inner frames and filter bag openings of different sizes and specifications, thus improving versatility.

[0095] In this embodiment, the connecting plate 241 is provided with an X-direction oblong hole 2411. One end of the guide pin 2412 is fixed to the end of the inner support plate 2311 of the side-mounted inner frame clamping mechanism 24, and the other end passes through the X-direction oblong hole 2411 and can translate along the X-direction oblong hole 2411. Through the above structural design, the side-mounted inner frame clamping mechanisms on both sides can change the pitch along the Y direction and translate along the X direction to support the inner frame, and there is no interference between the mechanisms.

[0096] In this embodiment, as Figures 11 to 14 As shown, the X-axis material picking, clamping, and translating drive mechanism 25 includes an X-axis material picking, clamping, and translating drive motor 251, an X-axis lead screw 252, and two X-axis nuts 253. The power output end of the X-axis material picking, clamping, and translating drive motor 251 is connected to one end of the X-axis lead screw 252. The X-axis lead screw 252 is a bidirectional lead screw with threads having different directions of rotation. The two X-axis nuts 253 are respectively fixed on the two material picking base plates 22, and the two X-axis nuts 253 are respectively fitted onto the front and rear sections of the X-axis lead screw 252. The material picking base plate 22 and the material picking base 21 are also connected by a slider and slide rail structure. The X-axis material picking, clamping, and translating drive motor 251 drives the X-axis lead screw 252 to rotate, thereby causing the two X-axis nuts 253 and the material picking base plate 22 to move closer to or further away in the X direction.

[0097] In this embodiment, as Figure 10 As shown, the gantry frame 1 includes two X-direction crossbeams 11, a Y-direction crossbeam 12, and a Z-direction beam 13. The two ends of the Y-direction crossbeam 12 are slidably connected to the X-direction crossbeam 11, and the Z-direction beam 13 can slide along the Y-direction surface of the Y-direction crossbeam.

[0098] like Figure 16 As shown, the X-direction inner frame translation drive mechanism 14, which can drive the material clamping device to translate along the X direction, includes an X-direction inner frame translation drive motor 141, a drive shaft 142, a first synchronous pulley 143, a first synchronous belt 144, and a second synchronous belt 145. The first synchronous pulley 143 is installed at the power output end of the X-direction inner frame translation drive motor 141, at the middle position of the drive shaft 142, at both ends of the drive shaft 142, and on the X-direction crossbeam 11. The first synchronous belt 143 is fitted onto the first synchronous pulley 143 at the power output end of the X-direction inner frame translation drive motor 141 and the first synchronous pulley 143 at the middle position of the drive shaft 142. The second synchronous belt 145 is fitted onto the first synchronous pulley 143 on the same X-direction crossbeam 11.

[0099] The two ends of the Y-direction crossbeam 12 are respectively fixed on the two second synchronous belts 145 and are slidably connected to the X-direction crossbeam 11 through a slider rail structure.

[0100] Through the transmission structure composed of the aforementioned drive shaft, multiple first synchronous pulleys, first synchronous belt, and second synchronous belt, the transmission structure is driven by an X-axis inner frame translation drive motor. Combined with the slider rail structure, the smooth movement of the two X-axis crossbeams can be achieved, saving power resources.

[0101] In this embodiment, as Figure 17 As shown, the Y-direction inner frame translation drive mechanism 15, which can drive the material clamping device 2 to translate along the Y direction, includes a Y-direction inner frame translation drive motor 151, a second synchronous pulley 152, and a third synchronous belt 153. The second synchronous pulley 152 is installed at the power output end of the Y-direction inner frame translation drive motor 151 and one end of the Y-direction crossbeam 12. The third synchronous belt 153 is fitted onto the second synchronous pulley 152. The Z-direction beam 13 is fixed to the third synchronous belt 153 and is slidably connected to the Y-direction crossbeam 12 through a slider rail structure.

[0102] In this embodiment, as Figure 18 and Figure 19 As shown, the Z-axis inner frame translation drive mechanism 16, which drives the material clamping device 2 to translate along the Z-axis, includes a Z-axis inner frame translation drive motor 161, a drive wheel 162, an upper idler wheel 163, a lower idler wheel 164, and a belt 165. The drive wheel is located above the upper idler wheel, and the upper idler wheel is located above the lower idler wheel. The upper end of the belt is fixed to the upper end of the Z-axis beam. Simultaneously, the belt wraps around from below the upper idler wheel to the outer circumference of the drive wheel, then wraps around from above the lower idler wheel, and finally the lower end of the belt is fixed to the lower end of the Z-axis beam. The Z-axis beam and the mounting base 166 where the Z-axis inner frame translation drive motor is located are slidably connected via a slider-rail structure. In this embodiment, the rail extends along the Z-axis and is disposed on the surface of the Z-axis beam, and the slider is fixed to the surface of the mounting base. Figure 18 As shown, when the Z-axis inner frame translation drive motor drives the drive wheel to rotate counterclockwise, it will cause the Z-axis beam to rise; conversely, when the Z-axis inner frame translation drive motor drives the drive wheel to rotate clockwise, it will cause the Z-axis beam to fall. Of course, other Z-axis inner frame translation drive mechanisms can also be used, as long as they can achieve the function of driving the Z-axis beam to rise and fall. However, compared with the motor-driven lead screw and nut structure, the Z-axis inner frame translation drive mechanism in this embodiment has a longer drive stroke and smoother operation, thus meeting the requirements.

[0103] In this embodiment, a clamping method using the composite clamping device for the inner frame of the filter bag is described above. First, the material taking clamping device moves along the XYZ three axes to the location of the inner frame. The X-axis material taking clamping translation drive mechanism drives the two material taking base plates away, so that all the inner support plates expand outward from the inside to support the inner frame and move it to the pre-assembly station. At this time, the inner frame is exactly located inside the opening of the filter bag.

[0104] Then, the long side outer clamping drive cylinder of the long side clamping unit drives the "T" shaped clamping plate to press and bond the two long sides of the inner frame and the opening of the filter bag together, while the short side outer clamping unit presses and bonds the two short sides of the inner frame and the opening of the filter bag together.

[0105] Finally, the material clamping device moves along the XYZ axes to retract and return to its original position, and then the process is repeated.

[0106] The detailed working principle and process are as follows:

[0107] The working process of the positioning and bag opening device: The filter bags are stacked in the feeding area of ​​the filter bag feeding device. The bag picking mechanism moves along the X-axis to the feeding area of ​​the filter bags, and then descends along the Z-axis to the position where the suction cup group picks up the top filter bag and places it on the positioning platform. Then, the bag pushing translation drive unit 362 drives the bag pushing plate to translate along the X-direction to push the filter bag and accurately position it with the positioning base plate as the base plate as the reference. Then, the upper bag opening drive linear module drives the upper needle suction cup to descend to the position and pick up the upper layer of the filter bag. At the same time, the lower bag opening drive cylinder drives the lower needle suction cup to rise and pick up the lower layer of the filter bag. Then, the upper bag opening drive linear module drives the upper needle suction cup to move upward and the lower bag opening drive cylinder drives the lower needle suction cup to move downward, which can open the mouth of the filter bag. In order to ensure the opening effect of the filter bag, multiple sets of upper bag opening mechanism 33 and lower bag opening mechanism can be set at intervals.

[0108] The working process of the flipping device: The flipping frame translation drive mechanism 44 drives the flipping frame 41 to translate along the X direction to the designated position, so that both the fixed insert 452 and the movable insert 453 are inserted into the open filter bag. Then, the insert translation drive linear module 454 drives the movable insert 453 to move along the Z direction, and the Y direction bag-supporting drive mechanism 42 drives the first bag-supporting device 45 and the second bag-supporting device 46 to separate and open the mouth of the filter bag. After that, the upper bag-opening drive linear module drives the upper needle suction cup to move upward, and the lower bag-opening drive linear module drives the lower... The needle suction cup moves downward; then, the flipping frame translation drive mechanism 44 drives the flipping frame 41 to translate and drag backward along the X direction, and drives the flipping frame 41 to flip 90° through the flipping drive mechanism 43, so that the opening of the filter bag faces upward, and the filter bag is now in the pre-assembly station; wherein, since the distance between the fixed insert and the movable insert can be adjusted, and the distance between the first bag supporting device 45 and the second bag supporting device 46 can also be adjusted, it can be adapted to the flipping of filter bags of different specifications, improving the versatility of the equipment;

[0109] The working process of the material picking and clamping device: When the material picking and clamping device moves to the location of the inner frame (a rectangular frame with glue on the four outer sides around the perimeter) (not shown in the figure), the X-axis material picking and clamping translation drive mechanism drives the two material picking base plates away, so that all the inner support plates expand outward from the inside to support the inner frame and move it to the pre-assembly station. The inner frame is exactly located inside the opening of the filter bag. Then, the "T"-shaped clamping plate of the long side outer clamping unit presses and glues the long side of the inner frame and the opening of the filter bag together. The vertical clamping plate of the short side outer clamping unit presses and glues the short side of the inner frame and the opening of the filter bag together. The pre-assembled filter bag (including the inner frame) enters the subsequent processing process. The translation of the material picking and clamping device along the XYZ axes in the above process is achieved by the X-axis inner frame picking translation drive mechanism, the Y-axis inner frame picking translation drive mechanism, and the Z-axis inner frame picking translation drive mechanism, respectively.

[0110] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure made using the content of the present invention specification and drawings, or directly or indirectly applied to other related technical fields, is similarly included within the patent protection scope of the present invention.

Claims

1. A filter bag inner frame pre-assembly machine, characterized in that: The pre-assembly machine includes a positioning and bag opening device (3), a flipping device (4), a gantry frame (1), and a material picking and clamping device (2) installed on the gantry frame (1) and capable of moving along the XYZ three axes. The positioning and bag opening device opens the mouth of the filter bag, the flipping device drives the filter bag to rotate so that its mouth faces upward, and the material picking and clamping device clamps the inner frame and presses it against the inside of the mouth of the filter bag. The positioning and bag opening device (3) includes a pre-assembly machine (31), which is provided with a positioning platform (32), an upper bag opening mechanism (33) and a bag picking mechanism (34) for gripping filter bags (1001) and capable of translating along the X-axis and Z-axis. The front end of the positioning platform is provided with several positioning base plates (321), a lower bag opening mechanism (35) and a bag pushing mechanism (36). The bag pushing mechanism (36) includes a bag pushing plate (361) and a bag pushing translation driving unit (362) capable of driving the bag pushing plate (361) to translate. The bag pushing plate is driven to translate along the X direction by the bag pushing translation driving unit (362). The filter bag is picked up by the bag-grabbing mechanism (34) and placed on the positioning platform (32). The bag-pushing translation drive unit (362) pushes the bag-pushing plate (361) to translate and cooperate with the positioning base plate (321) to accurately position the filter bag. The upper bag-opening mechanism (33) inserts the upper layer of the filter bag (1001) and moves it upward, and the lower bag-opening mechanism (35) inserts the lower layer of the filter bag and moves it downward, thereby opening the mouth of the filter bag. The flipping device (4) includes a flipping frame (41) and two sets of bag-supporting devices disposed on the flipping frame, a Y-direction bag-supporting drive mechanism (42) capable of driving the two bag-supporting devices to move closer or further away along the Y direction, a flipping drive mechanism (43) capable of driving the flipping frame to flip, and a flipping frame translation drive mechanism (44) capable of driving the flipping frame to translate along the X direction. The two bag-supporting devices make the opening of the filter bag open. The flipping drive mechanism drives the flipping frame to flip, causing the filter bag to flip so that its opening faces upward. The flipping frame translation drive mechanism drives the flipping frame to translate along the X direction. The material picking clamping device (2) includes a material picking base (21), two material picking base plates (22), a set of middle inner frame clamping mechanisms (23), two sets of side inner frame clamping mechanisms (24), an X-direction material picking clamping translation drive mechanism (25), and a variable pitch drive mechanism (26). The two material picking base plates (22) are both installed on the bottom surface of the material picking base (21) and can move closer or further away from each other in the X direction through the X-direction material picking clamping translation drive mechanism (25). The intermediate inner frame clamping mechanism (23) is fixed at the middle position of the material picking base plate (22). The two sets of side inner frame clamping mechanisms (24) are mirror-symmetrical about the intermediate inner frame clamping mechanism (23) and movably installed on the material picking base plate (22). The intermediate inner frame clamping mechanism (23) and the two sets of side inner frame clamping mechanisms (24) each include two inner frame support clamping assemblies (231) installed on the material picking base plate. The two inner frame support clamping assemblies (231) of each side inner frame clamping mechanism (24) are simultaneously installed on the same connecting plate (241). The variable pitch drive mechanism (26) can drive the two connecting plates (241) to move closer or further away along the Y direction. Each of the inner frame support clamping assemblies (231) includes an inner support plate (2311) and a long side outer clamping unit (2312). The upper end of the long side outer clamping unit (2312) is installed on the upper part of the inner support plate (2311). The inner frame is supported from the inside out by all the inner support plates (2311) and the long side of the inner frame and the opening of the filter bag are pressed and clamped by the long side outer clamping unit (2312).

2. The filter bag inner frame pre-assembly machine according to claim 1, characterized in that: The positioning platform (32) has several strip grooves (322) extending along the X direction; the bag pushing translation drive unit (362) includes a bag pushing translation drive motor (3621), two third synchronous pulleys (3622), a fourth synchronous belt (3623), and a bag pushing seat (3624). The third synchronous pulleys are located at both ends of the bottom of the positioning platform. One of the third synchronous pulleys is installed at the power output end of the bag pushing translation drive motor. The fourth synchronous belt is fitted onto the third synchronous pulley. The bag pushing seat is fixed on the fourth synchronous belt. The upper end of the bag pushing seat extends out from the strip groove and is fixedly installed with the bag pushing plate.

3. The filter bag inner frame pre-assembly machine according to claim 1, characterized in that: The upper bag opening mechanism (33) includes an upper needle suction cup (331) and an upper bag opening drive linear module (332). The upper needle suction cup is installed on the power output end of the upper bag opening drive linear module, and the upper needle suction cup is driven to rise and fall by the upper bag opening drive linear module. The lower opening bag mechanism (35) includes a lower needle suction cup (351) and a lower opening bag driving cylinder (352). The lower needle suction cup is installed at the power output end of the lower opening bag driving cylinder, and the lower needle suction cup is driven to rise and fall by the lower opening bag driving cylinder. The bag-retrieving mechanism (34) includes a connecting arm (341) and a suction cup assembly (342) consisting of multiple needle-type suction cups, the suction cup assembly being mounted on the lower end of the connecting arm.

4. The filter bag inner frame pre-assembly machine according to claim 1, characterized in that: The bag-supporting device includes an insert plate (451) and a fixed insert (452), a movable insert (453) mounted on the insert plate, and an insert translation drive linear module (454) capable of driving the movable insert to rise and fall. The fixed insert is fixed to one end of the insert plate, and the movable insert is driven to rise and fall by the insert translation drive linear module.

5. The filter bag inner frame pre-assembly machine according to claim 4, characterized in that: The Y-direction bag-supporting drive mechanism (42) includes a Y-direction bag-supporting drive motor (421), a fourth synchronous pulley (422), and a fifth synchronous belt (423). The fourth synchronous pulley is located at both ends of the flipping frame, and the fifth synchronous belt is fitted onto the fourth synchronous pulley. The Y-direction bag-supporting drive motor drives the fourth synchronous pulley to rotate. The insert plates of the two support bag devices are respectively fixed to different ends on different sides of the fifth synchronous belt.

6. The filter bag inner frame pre-assembly machine according to claim 1, characterized in that: The inner side of the inner support plate of the side-mounted inner frame clamping mechanism (24) is provided with a short side outer clamping unit (27), and the short side of the inner frame and the opening of the filter bag are pressed and clamped by the short side outer clamping units (27) on both sides. The short-side outer clamping unit (27) includes a short-side outer clamping drive cylinder (271) and a vertical clamping plate (272), wherein the vertical clamping plate (272) is installed at the power output end of the short-side outer clamping drive cylinder (271).

7. The filter bag inner frame pre-assembly machine according to claim 1, characterized in that: The long side outer clamping unit (2312) includes a long side outer clamping drive cylinder (23121), an inverted "T"-shaped clamping plate (23122), and a pin (23123). The upper end of the "T"-shaped clamping plate is rotatably connected to one side of the bottom of the long side outer clamping drive cylinder as a fulcrum (23124). A cavity (23125) is provided in the middle position of the "T"-shaped clamping plate. The pin (23123) passes through the cavity (23125) and is rotatably connected to the end of the push rod of the long side outer clamping drive cylinder (23121). The push rod is retracted or extended by the clamping drive cylinder (23121) on the long side, which will cause the upper end of the "T" shaped clamp (23122) to rotate around the fulcrum, and in turn, the lower end of the "T" shaped clamp (23122) will move closer to or away from the inner support plate (2311).

8. The filter bag inner frame pre-assembly machine according to claim 1, characterized in that: The variable pitch drive mechanism (26) includes a variable pitch drive motor (261), a variable pitch lead screw (262), and two variable pitch nuts (263). The power output end of the variable pitch drive motor (261) is connected to one end of the variable pitch lead screw (262). The variable pitch lead screw (262) is a bidirectional lead screw with different helical threads. The two variable pitch nuts (263) are respectively fixed on the two connecting plates (241). The two variable pitch nuts (263) are respectively fitted onto the left and right sections of the variable pitch lead screw (262). The material picking base plate (22) and the material picking base (21) are also connected by a slider rail structure.

9. The filter bag inner frame pre-assembly machine according to claim 1, characterized in that: The X-axis material picking clamping translation drive mechanism (25) includes an X-axis material picking clamping translation drive motor (251), an X-axis lead screw (252), and two X-axis nuts (253). The power output end of the X-axis material picking clamping translation drive motor (251) is connected to one end of the X-axis lead screw (252). The X-axis lead screw (252) is a bidirectional lead screw with different helical threads. The two X-axis nuts (253) are respectively fixed on the two material picking base plates (22). The two X-axis nuts (253) are respectively fitted on the front and rear sections of the X-axis lead screw (252). The material picking base plate (22) and the material picking base (21) are also connected by a slider rail structure.

10. The filter bag inner frame pre-assembly machine according to claim 1, characterized in that: The gantry (1) includes two X-direction crossbeams (11), a Y-direction crossbeam (12) and a Z-direction beam (13). The two ends of the Y-direction crossbeam (12) are slidably connected to the X-direction crossbeam (11), and the Z-direction beam (13) can slide along the surface of the Y-direction crossbeam in the Y direction. The Z-axis inner frame translation drive mechanism (16) that can drive the material clamping device (2) to translate along the Z-axis includes a Z-axis inner frame translation drive motor (161), a drive wheel (162), an upper idler wheel (163), a lower idler wheel (164), and a belt (165). The drive wheel is located above the upper idler wheel, and the upper idler wheel is located above the lower idler wheel. The upper end of the belt is fixed to the upper end of the Z-axis beam. At the same time, the belt wraps around from below the upper idler wheel to the outer periphery of the drive wheel and then wraps around from above the lower idler wheel. Finally, the lower end of the belt is fixed to the lower end of the Z-axis beam.

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