A pleated cylindrical filter bag production equipment

Abstract

The present invention provides a pleated cylindrical filter bag production equipment, which relates to the field of filter bag production equipment, including a pleated discharge rack, a pleated forming middle rack, an ultrasonic welding assembly and a conveyor belt mechanism. The pleated forming middle rack is located behind the pleated discharge rack, and the pleated forming middle rack includes a forming frame. Two rows of rotating shafts are installed inside the forming frame for vertical rotation, and a pleated forming wheel is installed on each rotating shaft. A motor is provided on one side of the forming frame corresponding to each rotating shaft; the ultrasonic welding assembly is located behind the pleated forming middle rack, and the conveyor belt mechanism is installed behind the ultrasonic welding assembly. The present invention has a good pleated forming effect by setting pleated forming wheels of different radius and number. By using ultrasonic welding technology, the welding is firm and there is no fire safety hazard. The length of the entire device is accurately controlled, which saves the labor cost of the enterprise while improving the production efficiency and production quality, and has high practicality.

Description

Technical Field

[0001] The invention relates to the field of filter bag production equipment, in particular to a pleated cylindrical filter bag production equipment. Background Art

[0002] Gas filtration devices are widely used in metallurgy, chemical industry, petroleum, papermaking, medicine, food, mining, electricity, and urban water supply. Such as industrial wastewater, circulating water filtration, emulsion regeneration, waste oil filtration treatment, continuous casting water system, blast furnace water system in the metallurgical industry, and high-pressure water descaling system for hot rolling. It is an advanced, efficient and easy-to-operate fully automatic filtration device.

[0003] The gas filtering devices currently used are mainly filter bags. During the processing of the filter bags, pleating is required to make the surface of the flat original cloth into pleats. There is no special equipment for pleating in the prior art. At the same time, in order to increase the stability of the bag connection port, cloth strips need to be added to strengthen the bag mouth. In the prior art, the addition of cloth strips is generally done manually, and the sewing effect is not good. This method has low production efficiency, the production qualification rate is greatly affected by human factors, and the cost is high. There is also a heating component to heat the cloth strips and the original cloth and then bond them together. However, direct heating of such flammable materials will pose certain safety hazards and is prone to fire. Summary of the invention

[0004] The object of the present invention is to provide a pleated cylindrical filter bag production equipment to solve the above technical problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a pleated cylindrical filter bag production equipment, including a pleated unloading rack, a pleated preforming middle rack, an ultrasonic welding assembly and a conveyor belt mechanism, characterized in that:

[0006] The pleated unloading rack comprises an unloading frame, support arms are rotatably arranged on both sides of the lower end of the unloading frame, mounting grooves are arranged on the upper sides of the ends of the support arms, rotating rods are movably arranged in the left and right mounting grooves, a liquid telescopic rod is rotatably arranged at the middle position of the upper ends of the two support arms, the upper end of the liquid telescopic rod is rotatably arranged on the unloading frame, a limited transmission shaft is arranged at the inner front end of the unloading frame, a rotating motor is arranged on one side of the unloading frame, and the output end of the rotating motor is connected to the limited transmission shaft in transmission; the support arms and the liquid telescopic rod are arranged to lift the rotating rod so that the rolled original fabric on the rotating rod does not contact the ground.

[0007] The pleat preforming middle frame is located behind the pleat unloading frame, and the pleat preforming middle frame includes an aluminum profile frame, and two rows of rotating shafts are installed inside the aluminum profile frame for vertical rotation, and the rotating shafts include an upper rotating shaft a and a lower rotating shaft b, and the upper rotating shaft a and the lower rotating shaft b are each provided with four, and a pleat forming wheel is installed on each rotating shaft, and the radius of the pleat forming wheel increases from right to left in the aluminum profile frame, and the number of the pleat forming wheels increases successively, and a sprocket transmission device is provided on one side of the aluminum profile frame corresponding to each rotating shaft, and a motor is installed inside the aluminum profile frame, and the motor is connected to the sprocket transmission device in transmission; by setting pleat forming wheels of different radii, the pleats pressed out on the original fabric are from shallow to deep, and by increasing the number of pleat forming wheels, the pressed pleats are from few to many, so that the pleats formed are uniform and the forming effect is good.

[0008] The ultrasonic welding assembly is located at the rear of the pleat preforming middle frame, and includes an aluminum profile frame. A transfer wheel rotating shaft is arranged at one end of the aluminum profile frame near the pleat preforming middle frame, and a plurality of transfer wheels are sleeved on the transfer wheel rotating shaft. A welding base is arranged on the left side of the transfer wheel rotating shaft, and an ultrasonic mold is arranged above the welding base. The pleated cloth is located between the welding base and the ultrasonic mold. An ultrasonic generator is installed above the ultrasonic mold. A boosting cylinder is arranged at the upper end of the ultrasonic generator, and the upper end of the boosting cylinder is fixed on the aluminum profile frame. A cloth strip is arranged on one side of the aluminum profile frame. The cloth strip is wound into a disc and rotatably installed on a round rod. A cloth strip inlet is arranged on one side of the aluminum profile frame. A filter bag cutting device is arranged at the rear outlet of the aluminum profile frame, and the conveyor belt mechanism is installed at the rear of the ultrasonic welding assembly. The original manual sewing and heating component heating welding are changed to ultrasonic welding technology, which not only has firm welding and high efficiency, but also does not have the fire safety hazard of direct heating with heating components. The setting of the filter bag cutting device can cut the long pleated original fabric into the required length.

[0009] Preferably, the spacing between the pleat forming wheels on the upper rotating shaft and the lower rotating shaft is adjustable.

[0010] Preferably, the transfer wheel corresponds to the pleat grooves on the filter bag after passing through the pleat forming wheel.

[0011] Preferably, rotation grooves are provided on the side walls at both ends of the rotation rod, two rollers are rotatably mounted on the inner side wall of the mounting groove, and the width of the rotation groove is greater than the width of the rollers.

[0012] Preferably, the filter bag cutting device includes a cutting blade, which is rotatably mounted on a vertical fixed plate, a driven wheel is arranged behind the vertical fixed plate, a transverse support plate is arranged above the cutting blade in the aluminum profile frame, a slider is arranged at the upper end of the transverse support plate, a sliding mounting seat is slidably mounted in the slider, the upper end of the vertical fixed plate is fixedly mounted on the lower end of the sliding mounting seat, a cutting motor is installed on the sliding mounting seat, a driving wheel is arranged at the output end of the cutting motor, and the driving wheel is rotatably connected to the driven wheel through a transmission belt.

[0013] Preferably, the conveyor belt mechanism includes a conveyor belt and a support frame below the conveyor belt.

[0014] Preferably, one side of the cloth strip is located inside the aluminum profile frame and an automatic cloth strip pulling device is provided, the automatic cloth strip pulling device includes a first mechanical rodless cylinder, the first mechanical rodless cylinder has a mounting seat, an upper cloth strip plate is installed on the mounting seat, a lower cloth strip plate is movably provided at the lower end of the upper cloth strip plate, and saw teeth are provided on the contact surfaces of the lower cloth strip plate and the upper cloth strip plate. Two cylinders are symmetrically provided on the left and right sides of the upper end of the upper cloth strip plate along the central axis, the two cylinders are fixedly mounted on the side panels of the automatic cloth strip device, and the output shafts of the cylinders pass through the lower ends of the side panels of the device and are connected to the lower cloth strip plate. A cloth cutting device is provided on the lower side of the first mechanical rodless cylinder close to the cloth strip, the cloth cutting device includes a brushless angle grinder, including a brushless angle grinder fixedly mounted on a second mechanical rodless cylinder, and the second mechanical rodless cylinder is mounted on the aluminum profile frame.

[0015] Preferably, the first mechanical rodless cylinder and the second mechanical rodless cylinder are both driven to slide back and forth through an air circuit and are controlled by a travel switch.

[0016] The beneficial effects of the present invention are:

[0017] The support arm and the liquid telescopic rod are arranged in the present invention to raise the rotating rod so that the rolled raw fabric on the rotating rod does not contact the ground. The pleat forming wheels with different radii are arranged so that the pleats pressed on the raw fabric are from shallow to deep. The pleats pressed are increased from few to many by increasing the number of pleat forming wheels. The pleats formed in this way are uniform and have a good forming effect. By changing the original manual sewing and heating welding of the heating component and adopting ultrasonic welding technology, not only the welding is firm and efficient, but also there is no fire safety hazard caused by direct heating of the heating component. The filter bag cutting device is arranged so that the long pleated raw fabric can be cut into the required length. The length of the whole device is accurately controlled. The pleated cylindrical filter bag product produced is firm and beautiful, which saves the labor cost of the enterprise while improving the production efficiency and production quality, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional structural schematic diagram of a pleated cylindrical filter bag production equipment of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the pleat unloading rack of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the ultrasonic welding assembly of the present invention;

[0021] Figure 4 It is a schematic front view of the ultrasonic welding assembly of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the ultrasonic welding assembly of the present invention;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the pleat preforming middle frame of the present invention;

[0024] Figure 7 It is a top view schematic diagram of the pleat preforming middle frame of the present invention;

[0025] Figure 8 For the present invention Figure 2 A magnified schematic diagram of the middle part; Fig. 9

[0026] For the present invention Figure 4 The enlarged schematic diagram of the middle B part; Fig.10 for

[0027] The automatic cloth strip pulling device of the present invention;

[0028] Fig.11 This is a schematic diagram of the structure of the cloth-clamping strip upper plate and the cloth-clamping strip lower plate of the present invention;

[0029] Fig.12 It is a structural schematic diagram of the cloth cutting strip device of the present invention;

[0030] Figure numerals: 1-pleat unloading rack; 101-unloading frame; 102-support arm; 103-installation slot; 104-threading rotating rod; 104a-rotation groove; 105-liquid telescopic rod; 106-limiting transmission shaft; 107-rotation motor; 2-pleat preforming middle frame; 201-aluminum profile frame; 202-rotation shaft; 202a-upper rotation shaft; 202b-lower rotation shaft; 203-pleat forming wheel; 204-sprocket transmission device; 205-motor; 3-ultrasonic welding assembly; 301-aluminum profile frame; 302-transmission wheel rotation shaft; 303-transmission wheel; 304-welding base; 305-ultrasonic generator; 306-boosting cylinder; 3 07-cloth strip; 308-cloth strip inlet; 309-filter bag cutting device; 3010-ultrasonic mold; 309a-cutting blade; 309b-vertical fixing plate; 309c-driven rotor; 309d-lateral supporting plate; 309e-sliding block; 309f-sliding mounting seat; 309g-driving rotor; 309h-cutting motor; 4-conveyor belt mechanism; 5-automatic cloth strip pulling device; 501-first mechanical rodless cylinder; 502-first mechanical rodless cylinder mounting seat; 503-cloth strip lower plate; 504-cloth strip upper plate; 505-cylinder; 6-roller; 7-cloth strip cutting device; 701-brushless angle grinder; 702-second mechanical rodless cylinder. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0032] The specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0033] Example 1

[0034] like Figure 1-6As shown, a pleated cylindrical filter bag production equipment comprises a pleated unloading frame 1, a pleated preforming middle frame 2, an ultrasonic welding assembly 3 and a conveyor belt mechanism 4, wherein the pleated unloading frame 1 comprises an unloading frame 101, support arms 102 are rotatably arranged on both sides of the lower end of the unloading frame 101, mounting grooves 103 are arranged on the upper side of the ends of the support arms 102, rotating rods 104 are movably arranged in the left and right mounting grooves 103, a liquid telescopic rod 105 is rotatably arranged at the middle position of the upper ends of the two support arms 102, and the upper end of the liquid telescopic rod 105 is rotatably mounted on the unloading frame 101, a limited transmission shaft 106 is arranged at the inner front end of the unloading frame 101, a rotating motor 107 is installed on one side of the unloading frame 101, and the output end of the rotating motor 107 is drivingly connected with the limited transmission shaft 106;

[0035] The pleat preforming middle frame 2 is located at the rear of the pleat unloading frame 1, and the pleat preforming middle frame 2 includes an aluminum profile frame 201, and two rows of rotating shafts 202 are installed in the aluminum profile frame 201 for vertical rotation. The rotating shafts 202 include an upper rotating shaft 202a and a lower rotating shaft 202b, and four upper rotating shafts 202a and four lower rotating shafts 202b are respectively provided, and a pleat forming wheel 203 is installed on each rotating shaft 202. The radius of the pleat forming wheel 203 increases from right to left in the aluminum profile frame 201, and the number of the pleat forming wheels 203 increases successively. A sprocket transmission device 204 is provided on one side of the aluminum profile frame 201 corresponding to each rotating shaft 202, and a motor 205 is installed in the aluminum profile frame 201, and the motor 205 is connected to the sprocket transmission device 204 in transmission.

[0036] The ultrasonic welding assembly 3 is located at the rear of the pleat preforming middle frame 2, and includes an aluminum profile frame 301. A transfer wheel rotating shaft 302 is arranged at one end of the aluminum profile frame 301 near the pleat preforming middle frame 2. A plurality of transfer wheels 303 are sleeved on the transfer wheel rotating shaft 302. A welding base 304 is arranged on the left side of the transfer wheel rotating shaft 302. An ultrasonic mold 3010 is arranged above the welding base 304. The pleated fabric is located between the welding base 304 and the ultrasonic mold 3010. The upper part of the ultrasonic mold 3010 is provided with a plurality of transfer wheels 303. The ultrasonic generator 305 is installed on the side, and a boosting cylinder 306 is provided on the upper end of the ultrasonic generator 305. The upper end of the boosting cylinder 306 is fixed on the aluminum profile frame 301. A cloth strip 307 is provided on one side of the aluminum profile frame 301. The cloth strip 307 is wound into a disc and rotatably installed on the round rod. A cloth strip fixing entrance 308 is provided on one side of the aluminum profile frame 301, and a filter bag cutting device 309 is provided at the rear outlet of the aluminum profile frame 301. The conveyor belt mechanism 4 is installed at the rear of the ultrasonic welding assembly 3.

[0037] Working principle:

[0038] The whole roll of raw cloth of the processed pleated cylindrical filter bag is put on the rotating rod 104 so that the raw cloth can rotate around the rotating rod 104, and then the extension and contraction of the liquid telescopic rod 105 is controlled so that one end of the left and right support arms 102 rotates counterclockwise around the material discharge frame 101. At this time, the rotating rod 104 is stuck in the installation groove 103, and the position of the rotating rod 104 is slowly raised. The rotating rod 104 holds the whole roll of raw cloth of the filter bag in the air, and then the edge of one end of the raw cloth of the filter bag passes around the limit transmission shaft 106 to reach the pleat preforming middle frame 2. During the processing, the rotating motor 107 drives the limit transmission shaft 106 to rotate to complete the transportation of the raw cloth;

[0039] When the raw fabric enters the aluminum profile frame 201, the raw fabric will be pressed between the pleat forming wheels 203 fixed by the upper rotating shaft 202a and the lower rotating shaft 202b. Since the radius of the pleat forming wheels 203 increases from right to left in the aluminum profile frame 201, the number of the pleat forming wheels 203 increases successively, so the pleats pressed on the raw fabric at the beginning are relatively shallow and few in number. As the raw fabric is transferred backward, the depth of the pressed pleats will become larger and larger, and the number will also increase, until finally the pleats are uniformly pressed on the raw fabric laterally.

[0040] When the pleated fabric is transferred to the aluminum profile frame 301, it is first transferred backward by the transfer wheel rotating shaft 302 in cooperation with the transfer wheel 303 until the pleated fabric reaches between the ultrasonic generator 305 and the welding base 304, and the cloth strip 307 is pulled and pressed onto the pleated fabric. Then, the ultrasonic generator 305 is driven to move up and down by controlling the boost cylinder 306. The ultrasonic generator 305 drives the welding head 309 to generate high-frequency vibrations of tens of thousands of times per second on the welding base 304, and the ultrasonic energy is transmitted to the welding area through the welding head 309. Since the welding area, i.e., the interface between the two welds, has a large acoustic resistance, local high temperature will be generated. In addition, due to the poor thermal conductivity of the fabric, it cannot be dissipated in time for a while, and gathers in the welding area. After a certain pressure is applied, the cloth strip 307 at the welding point and the pleated fabric are welded together, and finally the pleated cylindrical filter bag formed is transmitted out of the entire device through the conveyor belt.

[0041] Example 2

[0042] like Figure 1-11As shown, a pleated cylindrical filter bag production equipment comprises a pleated unloading frame 1, a pleated preforming middle frame 2, an ultrasonic welding assembly 3 and a conveyor belt mechanism 4, wherein the pleated unloading frame 1 comprises an unloading frame 101, support arms 102 are rotatably arranged on both sides of the lower end of the unloading frame 101, mounting grooves 103 are arranged on the upper side of the ends of the support arms 102, rotating rods 104 are movably arranged in the left and right mounting grooves 103, a liquid telescopic rod 105 is rotatably arranged at the middle position of the upper ends of the two support arms 102, and the upper end of the liquid telescopic rod 105 is rotatably mounted on the unloading frame 101, a limited transmission shaft 106 is arranged at the inner front end of the unloading frame 101, a rotating motor 107 is installed on one side of the unloading frame 101, and the output end of the rotating motor 107 is drivingly connected with the limited transmission shaft 106;

[0043] The pleat preforming middle frame 2 is located at the rear of the pleat unloading frame 1, and the pleat preforming middle frame 2 includes an aluminum profile frame 201, and two rows of rotating shafts 202 are installed in the aluminum profile frame 201 for vertical rotation. The rotating shafts 202 include an upper rotating shaft 202a and a lower rotating shaft 202b, and four upper rotating shafts 202a and four lower rotating shafts 202b are respectively provided, and a pleat forming wheel 203 is installed on each rotating shaft 202. The radius of the pleat forming wheel 203 increases from right to left in the aluminum profile frame 201, and the number of the pleat forming wheels 203 increases successively. A sprocket transmission device 204 is provided on one side of the aluminum profile frame 201 corresponding to each rotating shaft 202, and a motor 205 is installed in the aluminum profile frame 201, and the motor 205 is connected to the sprocket transmission device 204 in transmission.

[0044] The ultrasonic welding assembly 3 is located behind the pleat preforming middle frame 2, and includes an aluminum profile frame 301. A transfer wheel rotating shaft 302 is provided at one end of the aluminum profile frame 301 near the pleat preforming middle frame 2. A plurality of transfer wheels 303 are sleeved on the transfer wheel rotating shaft 302. A welding base 304 is provided on the left side of the transfer wheel rotating shaft 302. An ultrasonic mold 3010 is provided above the welding base 304. The pleated fabric is located between the welding base 304 and the ultrasonic mold 3010. The ultrasonic mold 3010 is provided at the left side of the transfer wheel rotating shaft 302. An ultrasonic generator 305 is installed above, and a booster cylinder 306 is provided at the upper end of the ultrasonic generator 305. The upper end of the booster cylinder 306 is fixed on the aluminum profile frame 301. A cloth strip 307 is provided on one side of the aluminum profile frame 301. The cloth strip 307 is wound into a disc and rotatably installed on a round rod. A cloth strip inlet 308 is provided on one side of the aluminum profile frame 301. A filter bag cutting device 309 is provided at the rear outlet of the aluminum profile frame 301. The conveyor belt mechanism 4 is installed at the rear of the ultrasonic welding assembly 3.

[0045] Rotation grooves 104 a are provided on the side walls at both ends of the rotation rod 104 , and two rollers 6 are rotatably mounted on the inner side wall of the mounting groove 103 , and the width of the rotation grooves 104 a is greater than the width of the rollers 6 . The filter bag cutting device 309 includes a cutting blade 309a, which is rotatably mounted on a vertical fixed plate 309b, a driven rotating wheel 309c is arranged behind the vertical fixed plate 309b, a transverse supporting plate 309d is arranged above the cutting blade 309a in the aluminum profile frame 301, a slider 309e is arranged on the upper end of the transverse supporting plate 309d, a sliding mounting seat 309f is slidably mounted in the slider 309e, the upper end of the vertical fixed plate 309b is fixedly mounted on the lower end of the sliding mounting seat 309f, a cutting motor 309h is installed on the sliding mounting seat 309f, and a driving rotating wheel 309g is arranged at the output end of the cutting motor 309h, and the driving rotating wheel 309g is rotatably connected with the driven rotating wheel 309c through a transmission belt.

[0046] One side of the cloth strip 307 is located inside the aluminum profile frame 301 and is provided with an automatic cloth strip pulling device 5, which includes a first mechanical rodless cylinder 501, a mounting seat 502 is provided on the first mechanical rodless cylinder 501, a cloth strip upper plate 504 is installed on the mounting seat 502, a cloth strip lower plate 503 is movably provided at the lower end of the cloth strip upper plate 504, saw teeth are provided on the contact surfaces of the cloth strip lower plate 503 and the cloth strip upper plate 504, and the upper end of the cloth strip upper plate 504 is symmetrically provided with left and right sides along the central axis. Two cylinders 505 are provided, and the two cylinders 505 are fixedly mounted on the side plate 506 of the automatic cloth clamping device, and the output shaft of the cylinder 505 passes through the lower end of the device side plate 506 and is connected to the cloth clamping strip lower plate 503. A cloth cutting strip device 7 is arranged on the lower side of the first mechanical rodless cylinder 501 close to the cloth strip 307. The cloth cutting strip device 7 includes a brushless angle grinder 701, and the brushless angle grinder 701 is fixedly mounted on the second mechanical rodless cylinder 702. The second mechanical rodless cylinder 702 is mounted on the aluminum profile frame 301.

[0047] Working principle:

[0048] When the wrinkled cloth is transferred to the filter bag cutting device 309, the cutting motor 309h rotates to drive the driving wheel 309g to rotate, and the driving wheel 309g drives the driven wheel 309c to rotate through the belt, and the driven wheel 309c drives the cutting blade 309a to rotate rapidly, and the sliding block 309e of the sliding mounting seat 309f slides back and forth on the upper end of the horizontal support plate 309d, driving the cutting blade 309a to cut from one side of the wrinkled cloth to the other side, thereby cutting the wrinkled cloth.

[0049] When the cloth strip 307 is welded on the wrinkled cloth, the second mechanical rodless cylinder 702 moves back and forth, driving the brushless angle grinder 701 to move and cut the cloth strip 307. After cutting, the first mechanical rodless cylinder 501 drives the automatic cloth strip pulling device 5 to move toward the cloth strip entrance 308. When it moves to the cloth strip entrance 308, the two cylinders 505 simultaneously drive the cloth strip lower plate 503 to move downward, and the cloth strip upper plate 504 is separated from the cloth strip lower plate 503. Then the cylinder 505 drives the cloth strip lower plate 506 to move upward, so that the cloth strip upper plate 504 and the cloth strip lower plate 503 clamp the two cloth strips 307. Then, the first mechanical rodless cylinder 501 drives the whole to move away from the cloth strip entrance 308, pulling the cloth strip 307 and covering it on the wrinkled cloth, completing the continuous cycle of cutting and clamping the cloth.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pleated cylindrical filter bag production device, comprising a pleated unloading frame (1), a pleated forming middle frame (2), an ultrasonic welding assembly (3) and a conveyor belt mechanism (4), characterized in that: The pleated unloading frame (1) comprises an unloading frame (101), support arms (102) are rotatably arranged on both sides of the lower end of the unloading frame (101), mounting grooves (103) are arranged on the upper sides of the ends of the support arms (102), rotating rods (104) are movably arranged in the left and right mounting grooves (103), a liquid telescopic rod (105) is rotatably arranged at the middle position of the upper ends of the two support arms (102), the upper ends of the liquid telescopic rods (105) are rotatably mounted on the unloading frame (101), a feeding roller (106) is arranged at the inner front end of the unloading frame (101), a rotating motor (107) is installed on one side of the unloading frame (101), and the output end of the rotating motor (107) is drivingly connected to the feeding roller (106); The pleat forming middle frame (2) is located behind the pleat unloading frame (1), and the pleat forming middle frame (2) comprises a forming frame (201), and two rows of rotating shafts (202) are installed in the forming frame (201) for vertical rotation, and the rotating shafts (202) comprise upper rotating shafts (202a) and lower rotating shafts (202b), and four upper rotating shafts (202a) and four lower rotating shafts (202b) are provided respectively, and a pleat forming shaft (202) is installed on each rotating shaft (202). A wrinkle forming wheel (203), wherein the radius of the wrinkle forming wheel (203) increases from right to left in the forming frame (201), and the number of the wrinkle forming wheels (203) increases successively, a sprocket transmission device (204) is provided on one side of the forming frame (201) corresponding to each rotating shaft (202), a motor (205) is installed inside the forming frame (201), and the motor (205) is connected to the sprocket transmission device (204) in a transmission manner; The ultrasonic welding assembly (3) is located behind the pleat forming middle frame (2), and comprises a welding frame (301). A transfer wheel rotating shaft (302) is arranged at one end of the welding frame (301) close to the pleat forming middle frame (2). A plurality of transfer wheels (303) are sleeved on the transfer wheel rotating shaft (302). A welding base (304) is arranged on the left side of the transfer wheel rotating shaft (302). An ultrasonic mold (3010) is arranged above the welding base (304). The pleated fabric is located between the welding base (304) and the ultrasonic mold (3010). The ultrasonic mold (3010) ) is installed above the ultrasonic generator (305), a booster cylinder (306) is provided at the upper end of the ultrasonic generator (305), the upper end of the booster cylinder (306) is fixed to the welding frame (301), a cloth strip (307) is provided on one side of the welding frame (301), the cloth strip (307) is wound into a disc and rotatably installed on the round rod, a cloth strip inlet (308) is provided on one side of the welding frame (301), a filter bag cutting device (309) is provided at the rear outlet of the welding frame (301), and the conveyor belt mechanism (4) is installed at the rear of the ultrasonic welding assembly (3).

2. The pleated cylindrical filter bag production equipment according to claim 1 is characterized in that: The spacing between the pleat forming wheels (203) on the upper rotating shaft (202a) and the lower rotating shaft (202b) is adjustable.

3. The pleated cylindrical filter bag production equipment according to claim 1 is characterized in that: The transfer wheel (303) corresponds to the pleat grooves on the filter bag after passing through the pleat forming wheel (203).

4. The pleated cylindrical filter bag production equipment according to claim 1, characterized in that: The side walls at both ends of the rotating rod (104) are provided with rotating grooves (104a), and two rollers (6) are rotatably mounted on the inner side wall of the mounting groove (103), and the width of the rotating groove (104a) is greater than the width of the roller (6).

5. The pleated cylindrical filter bag production equipment according to claim 1, characterized in that: The filter bag cutting device (309) comprises a cutting blade (309a), which is rotatably mounted on a vertical fixed plate (309b), a driven rotating wheel (309c) is arranged behind the vertical fixed plate (309b), a transverse supporting plate (309d) is arranged above the cutting blade (309a) in the welding frame (301), a slide groove (309e) is arranged at the upper end of the transverse supporting plate (309d), a sliding mounting seat (309f) is slidably mounted in the slide groove (309e), the upper end of the vertical fixed plate (309b) is fixedly mounted on the lower end of the sliding mounting seat (309f), a cutting motor (309h) is installed on the sliding mounting seat (309f), and a driving rotating wheel (309g) is arranged at the output end of the cutting motor (309h), and the driving rotating wheel (309g) and the driven rotating wheel (309c) are rotatably connected through a transmission belt.

6. The pleated cylindrical filter bag production equipment according to claim 1, characterized in that: The conveyor belt mechanism (4) comprises a conveyor belt and a support frame below the conveyor belt.

7. The pleated cylindrical filter bag production equipment according to claim 1, characterized in that: One side of the cloth strip (307) is located inside the welding frame (301) and is provided with an automatic cloth strip pulling device (5), the automatic cloth strip pulling device (5) comprises a first rodless cylinder (501), a fixing seat (502) is installed on the first rodless cylinder (501), a cloth strip lower plate (503) is installed on the upper end of the fixing seat (502), a cloth strip upper plate (504) is movably provided on the upper end of the cloth strip lower plate (503), saw teeth are provided on the contact surfaces of the cloth strip lower plate (503) and the cloth strip upper plate (504), and the upper end of the cloth strip upper plate (504) is symmetrically provided with left and right sides along the central axis. Two cylinders (505) are arranged, and the two cylinders (505) are fixedly mounted on a fixing frame (506) on a first rodless cylinder (501), and the output shaft of the cylinder (505) passes through the lower end of the fixing frame (506) and is connected to an upper plate (504) of a cloth strip. A cloth strip cutting device (7) is arranged on a side of the first rodless cylinder (501) close to the cloth strip (307), and the cloth strip cutting device (7) comprises a brushless angle grinder (701), and the brushless angle grinder (701) is fixedly mounted on a second rodless cylinder (702), and the second rodless cylinder (702) is mounted on the welding frame (301).

8. The pleated cylindrical filter bag production equipment according to claim 7, characterized in that: The first rodless cylinder (501) and the second rodless cylinder (702) are both driven to slide back and forth through an air path and are controlled by a travel switch.

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