Single-channel circulating conveying cup-shaped mask automatic production equipment

Abstract

The utility model relates to the technical field of mask production equipment, especially single channel circulation conveying's cup type mask automatic production equipment, include: feed one group, feed two groups, conveying mechanism, cover material mechanism and welding mechanism, wherein, conveying mechanism is equipped with conveying support, jig assembly, track subassembly, conveyer belt, conveying wheel and conveying power device, and conveying wheel rotatory connection is in conveying support and is connected with conveying power device's output shaft transmission, and a plurality of jig assembly interval is fixedly connected in conveyer belt, and follows conveyer belt and carries out circulation conveying, track subassembly is fixedly connected in conveying support, and the support is carried out to jig assembly, makes jig assembly under the drive of conveyer belt, and the extension direction of track subassembly is translated. Above all, through single channel circulation conveying and track support, reduce the land occupation and cost, promote the efficiency, optimize cover material structure, improve the precision and reduce the loss, turn over and remove material mechanism strengthen the link, promote the overall production efficiency, adapt flexible manufacturing.

Description

Technical Field

[0001] This utility model relates to the technical field of mask production equipment, and in particular to an automatic production equipment for cup-shaped masks with single-channel circulating conveying. Background Technology

[0002] In the automated production of cup-shaped face masks, the lamination and assembly of meltblown fabric and cup-shaped nonwoven fabric is the core process, and its efficiency and precision directly affect the overall production efficiency. Traditional production equipment faces significant technical bottlenecks in this process:

[0003] On the one hand, the conveying process uses a reciprocating conveyor, which can withstand the pressure during the nesting and pressing process, but the efficiency of a single channel is extremely low. To increase production capacity, multiple conveying channels need to be set up in parallel, resulting in a significant increase in the equipment footprint and high purchase and maintenance costs. At the same time, the frequent start-up and shutdown of the reciprocating conveyor can easily cause positioning errors in the fixture components, affecting the accuracy of subsequent nesting.

[0004] On the other hand, the meltblown fabric processing flow in the fabric wrapping stage suffers from insufficient coordination. From the lamination stage to the unfolding, cutting, and transfer processes, traditional equipment often suffers from fabric wrinkles and cutting size deviations due to a lack of precise tension control and synchronization mechanisms. Especially when a single sheet of meltblown fabric needs to be precisely aligned and covered with cup-shaped nonwoven fabric, traditional gripper components struggle to adapt to the fabric's softness, easily leading to unstable gripping or misalignment, increasing the scrap rate.

[0005] Furthermore, there is a challenge in directional matching at the connection between conveying and welding. The cup-shaped nonwoven fabric is placed with its opening facing downwards in the conveying mechanism, while the welding process requires the opening to face upwards. Traditional flipping mechanisms mostly adopt a single-station design, which has low flipping efficiency and is prone to fabric deformation due to uneven clamping force. This makes it impossible to match the pace of high-speed conveying, thus creating a production bottleneck.

[0006] These issues collectively constrain the demand for "high efficiency, precision, and low cost" in the production of cup-shaped masks, necessitating an automated solution that integrates efficient conveying, precise material fitting, and stable connection. Utility Model Content

[0007] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0008] This utility model provides an automated production equipment for cup-shaped masks with a single-channel circulating conveyor, the production equipment comprising:

[0009] A feeding unit is installed at the starting section of the production equipment to supply raw materials for meltblown fabric.

[0010] The second feeding unit is installed on the side of the production equipment along the production direction and is used to form and supply cup-shaped nonwoven fabric.

[0011] The conveying mechanism is installed along the production direction of the production equipment and conveys the raw materials of cup-shaped nonwoven fabric and meltblown fabric.

[0012] The fabric assembly mechanism is used to expand the meltblown fabric raw material and then cover the expanded meltblown fabric raw material onto the cup-shaped nonwoven fabric, completing the stacking and assembly operation of the meltblown fabric and the nonwoven fabric to form the cup-shaped fabric; and

[0013] The welding mechanism is used to weld the meltblown fabric and non-woven fabric on the cup-shaped fabric, so that the two are firmly welded into a cup-shaped mask semi-finished product.

[0014] The conveying mechanism includes a conveying support, a jig assembly, a track assembly, a conveyor belt, a conveyor wheel, and a conveying power unit. The conveying power unit is fixed to the conveying support, the conveyor wheel is rotatably connected to the conveying support and is driven by the output shaft of the conveying power unit, and the conveyor belt is sleeved on the conveyor wheel so as to follow the conveyor wheel in a cyclic rotation. Multiple jig assemblies are fixed to the conveyor belt at intervals so as to follow the conveyor belt in a cyclic transport. The track assembly is fixed to the conveying support and is used to support the jig assemblies so that the jig assemblies can be translated along the extension direction of the track assembly under the drive of the conveyor belt.

[0015] Furthermore: the fixture assembly includes a cup-shaped punch, a fixture base plate, and belt teeth. The cup-shaped punch is fixed to one side of the fixture base plate, and the other side of the fixture base plate is installed on the conveyor belt via belt teeth. The track assembly includes two symmetrical side tracks that support both sides of the fixture base plate respectively.

[0016] Furthermore: the track assembly is provided with an upper track and a lower track respectively fixed to the conveyor bracket. The upper track is installed at the position corresponding to the tight side of the conveyor belt, thereby supporting the side of the fixture base plate where the conveyor belt is installed; the lower track is installed at the position corresponding to the loose side of the conveyor belt, thereby supporting the side of the fixture base plate where the cup-shaped punch is installed.

[0017] Furthermore: The fabric feeding mechanism includes a fabric support guide, a fabric cutting device, a fabric pulling device, a material lifting device, and a fabric covering device. The fabric support guide guides and expands the meltblown fabric raw material, allowing it to be laid flat on the fabric cutting device after expansion. The fabric cutting device includes electric fabric cutters and a cutting power device. The cutting power device drives the electric fabric cutters to cut the flat meltblown fabric, forming a single sheet of fabric. The fabric pulling device includes a fabric pulling clamping assembly and a fabric pulling power device. The fabric pulling clamping assembly clamps the meltblown fabric at the cutting device, and the fabric pulling power device drives the fabric pulling clamping assembly to move horizontally, allowing the meltblown fabric to move from the cutting device to the... At the top feeding device, there is a top feeding punch and a top feeding cylinder. The top feeding cylinder drives the top feeding punch to lift upwards, performing a pre-forming and spreading operation on the single piece of fabric held by the fabric clamping assembly. The cover fabric device is equipped with a cover fabric clamping assembly, a cover fabric transferring assembly, and a cover fabric pressing assembly. The cover fabric clamping assembly clamps the single piece of fabric at the top feeding device. The cover fabric transferring assembly drives the cover fabric clamping assembly to move, moving the single piece of fabric to the fixture assembly of the conveying mechanism and placing it on the cup-shaped nonwoven fabric. The cover fabric pressing assembly then presses the single piece of fabric on the cup-shaped nonwoven fabric, making it tightly adhere to the surface of the cup-shaped nonwoven fabric to form a cup-shaped fabric.

[0018] Furthermore, the fabric cutting device is also equipped with a fabric cutting bracket, a fabric cutting pressure plate, and a pressure plate cylinder. The fabric cutting bracket is fixedly connected to the top of the fabric cutting device, and the pressure plate cylinder is fixedly connected to the fabric cutting bracket. The fabric cutting pressure plate is slidably connected to the fabric cutting bracket in the vertical direction through a guide shaft and a linear bearing. Its top end is rigidly connected to the piston end of the pressure plate cylinder, so that the pressure plate cylinder drives the fabric cutting pressure plate to move up and down, pressing the meltblown fabric during fabric cutting and preventing its displacement.

[0019] Furthermore: the fabric spreading clamping assembly is provided with a clamping bracket, a clamping clamp and a clamping cylinder. The clamping bracket is slidably connected to the fabric feeding mechanism and is driven to the drive end of the fabric spreading power device; the clamping cylinder is fixed to the clamping bracket, the clamping clamp is rotatably connected to the clamping bracket, one end of the clamping clamp is driven to the clamping cylinder, and the other end is used to clamp the meltblown fabric.

[0020] Furthermore: the cover fabric transfer assembly includes a cover fabric crossbar, a first horizontal movement device, and a first vertical movement device. The cover fabric crossbar spans both sides of the conveying support and is located above the top material device. The first horizontal movement device is installed on the cover fabric crossbar, and the first vertical movement device is installed on the drive end of the first horizontal movement device. The cover fabric clamping assembly includes a cover fabric bracket, a cover fabric cylinder, and cover fabric grippers. The cover fabric bracket is installed on the drive end of the first vertical movement device, and the cover fabric cylinder is installed on the cover fabric bracket. Two cover fabric grippers used to complete the gripping action are slidably connected to both sides of the cover fabric bracket, and are respectively connected to the cover fabric cylinder through a transmission rod. Under the drive of the cover fabric cylinder, the two cover fabric grippers move synchronously in relative directions, thereby realizing the gripping or releasing operation of a single piece of fabric.

[0021] Furthermore: the cover fabric pressing assembly includes a pressing bracket, a pressing cylinder, a pressing collar, and a collar spring. The pressing bracket is slidably connected to the cover fabric bracket via a guide shaft and a linear bearing. The pressing cylinder is fixed to the cover fabric bracket and forms a transmission connection with the pressing bracket. The pressing collar is slidably connected to the pressing bracket in the vertical direction via a guide shaft and a linear bearing. The collar spring is sleeved on the guide shaft, with its two ends abutting against the pressing bracket and the pressing collar, respectively, which can buffer the pressure during pressing.

[0022] Furthermore, it also includes a flipping mechanism, which is equipped with a flipping clamping assembly, a flipping power device, a flipping bracket, and a flipping lifting cylinder. The flipping clamping assembly is rotatably connected to the flipping bracket and is drively connected to the drive end of the flipping power device. The flipping power device is fixed to the flipping bracket and drives the flipping clamping assembly to perform a flipping operation. The flipping bracket is slidably connected to the conveying bracket through the cooperation of a guide shaft and a linear bearing. The flipping lifting cylinder is fixed to the conveying bracket, and its piston rod is driven to move the flipping bracket up and down.

[0023] Furthermore: the flipping clamping assembly includes a flipping clamping plate and a clamping robot assembly. The flipping clamping plate is rotatably connected to the flipping bracket via a rotating shaft and forms a transmission connection with the flipping power device. Multiple clamping robot assemblies are respectively installed on the flipping clamping plate at positions corresponding to the cup-shaped punch, thereby performing clamping operations on multiple cup-shaped fabrics respectively. The clamping robot assembly includes a gripper base plate, an L-shaped gripper, and a gripper cylinder. The gripper base plate is installed on the flipping clamping plate, and the L-shaped gripper is rotatably connected to the gripper base plate. One end of the L-shaped gripper is transmissionally connected to the piston rod of the gripper cylinder, and the other end is used to clamp the cup-shaped fabric.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. Improve conveying efficiency and space utilization: By using a single-channel circulating conveyor belt in conjunction with track components, continuous circulating conveying of fixture components can be achieved. Compared with traditional multi-channel reciprocating conveying, the floor space is reduced by more than 50%, reducing equipment investment and maintenance costs. The upper and lower support design of the track components not only meets the pressure bearing requirements of the material pressing, but also avoids conveyor belt sagging and damage, extending the equipment life.

[0026] 2. Optimize the accuracy and stability of the fabric application: The fabric support guide and the fabric pulling device work together to gradually expand the meltblown fabric from the bonded state to the preset shape. Combined with the positioning function of the fabric cutting pressure plate, the cutting size error is controlled within ±0.5mm. The adjustable spacing design of the cover fabric clamping component can adapt to the gripping and transfer of different specifications of fabric. Combined with the cushioned pressing collar, it ensures that the meltblown fabric and the cup-shaped nonwoven fabric are accurately bonded, and the misalignment rate of the cover is reduced to less than 0.3%.

[0027] 3. Enhance the smoothness of process connection: The flipping mechanism achieves a stable conversion of cup-shaped fabric from "opening downward" to "opening upward" through 180° precise flipping and lifting avoidance design. Combined with the cross-workstation conveying of the material transfer gantry, the connection efficiency of the conveying and welding links is improved by 40%, avoiding process stagnation.

[0028] 4. Adapting to flexible production needs: Each module of the equipment (such as fabric cutting size, gripper spacing, and pressing force) can be adjusted through the driver parameters, and can be adapted to the production of different cup-shaped masks without mechanical structure modification. The changeover time is shortened to less than 10 minutes, which meets the flexible manufacturing scenarios of multiple varieties and small batches.

[0029] Therefore, this utility model reduces footprint and cost and improves efficiency through single-channel circulating conveying and track support; optimizes the nesting structure to improve accuracy and reduce losses; and strengthens the connection between the flipping and transferring mechanisms to improve overall production efficiency and adapt to flexible manufacturing.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of the production equipment of this utility model;

[0033] Figure 2 This is a schematic diagram of the nesting mechanism and the flipping mechanism of this utility model;

[0034] Figure 3 This is a partial structural schematic diagram of the conveying mechanism of this utility model;

[0035] Figure 4 This is a schematic diagram of the upper and lower tracks of this utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the jig base plate and the belt-mounted false teeth of this utility model;

[0037] Figure 6 This is a schematic diagram of the structure of the fabric support guide and fabric cutting device of this utility model;

[0038] Figure 7This is a schematic diagram of the fabric pulling device and the top material device of this utility model;

[0039] Figure 8 This is a schematic diagram of the fabric cutting device and fabric pulling device of this utility model;

[0040] Figure 9 This is a schematic diagram of the structure of the cover device of this utility model;

[0041] Figure 10 This is a schematic diagram of the structure of the cover cloth clamping assembly of this utility model;

[0042] Figure 11 This is a schematic diagram of the tumbling mechanism of this utility model;

[0043] Figure 12 This is a schematic diagram of the gripper base plate and gripper cylinder of this utility model;

[0044] Figure 13 This is a schematic diagram of the material transfer mechanism of this utility model.

[0045] The reference numerals and names in the figure are as follows:

[0046] 10 Conveying mechanism; 11 Conveying support; 12 Conveying belt; 13 Conveying wheel; 14 Conveying power unit; 15 Upper track; 16 Lower track; 17 Cup-shaped punch; 18 Fixture base plate; 19 Belt teeth; 20 Nesting mechanism; 21 Fabric support guide; 22 Fabric cutting device; 23 Electric fabric cutting shears; 24 Shearing power unit; 25 Fabric cutting support; 26 Fabric cutting pressure plate; 27 Pressure plate cylinder; 30 Fabric pulling device; 31 Fabric pulling clamping assembly; 32 Clamping support; 33 Clamping clamp; 34 Clamping cylinder; 35 Fabric pulling power unit; 36 Ejection device; 37 Ejection punch; 38 Ejection cylinder ; 40 Covering device; 41 Covering clamping assembly; 42 Covering bracket; 43 Covering cylinder; 44 Covering gripper; 45 Side gripper; 46 Side cylinder; 47 Separation slide plate; 48 Separation cylinder; 50 Covering material transfer assembly; 51 Covering crossbar; 52 First horizontal movement device; 53 First vertical movement device; 54 Covering pressing assembly; 55 Pressing bracket; 56 Pressing cylinder; 57 Pressing collar; 58 Collar spring; 60 Tilting mechanism; 61 Tilting bracket; 62 Tilting lifting cylinder; 63 Tilting power device; 64 Tilting clamping plate; 65 Clamping robot assembly; 66 Gripper base plate; 67 L-shaped gripper; 68 gripper cylinder; 70 material transfer mechanism; 71 material transfer gantry; 72 second horizontal transfer device; 73 second vertical transfer device; 74 material transfer gripping device; 75 material transfer bracket; 76 material transfer lever; 77 material transfer gripper; 78 material transfer cylinder; 80 first feeding group; 81 second feeding group; 82 welding mechanism; 83 cutting mechanism; 84 discharge mechanism; 85 meltblown fabric raw material. Detailed Implementation

[0047] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] Please see Figures 1 to 13 In this embodiment of the invention, an automated production equipment for cup-shaped masks with a single-channel circulating conveyor system is provided, the production equipment comprising:

[0049] A feeding group 80 is installed at the starting section of the production equipment to supply meltblown fabric raw material 85;

[0050] The second feeding group 81 is installed on the side of the production equipment along the production direction and is used to form and supply cup-shaped nonwoven fabric.

[0051] The conveying mechanism 10 is installed along the production direction of the production equipment and conveys the cup-shaped nonwoven fabric and meltblown fabric raw material 85.

[0052] The fabric assembly mechanism 20 is used to expand the meltblown fabric raw material 85 and cover the expanded meltblown fabric raw material 85 onto the cup-shaped nonwoven fabric, completing the stacking and assembly operation of the meltblown fabric and the nonwoven fabric to form a cup-shaped fabric; and

[0053] Welding mechanism 82 is used to weld meltblown fabric and nonwoven fabric on cup-shaped fabric to firmly weld the two into a cup-shaped mask semi-finished product;

[0054] The conveying mechanism 10 includes a conveying support 11, a jig assembly, a track assembly, a conveyor belt 12, a conveyor wheel 13, and a conveying power device 14. The conveying power device 14 is fixed to the conveying support 11. The conveyor wheel 13 is rotatably connected to the conveying support 11 and is driven by the output shaft of the conveying power device 14. The conveyor belt 12 is sleeved on the conveyor wheel 13 and rotates cyclically with the conveyor wheel 13. Multiple jig assemblies are fixed to the conveyor belt 12 at intervals and rotate cyclically with the conveyor belt 12. The track assembly is fixed to the conveying support 11 and is used to support the jig assembly, so that the jig assembly can be translated along the extension direction of the track assembly under the drive of the conveyor belt 12.

[0055] Specifically, in the production equipment for cup-shaped masks, a conveying mechanism 10 is required to transport cup-shaped nonwoven fabric and meltblown fabric raw materials 85, and during the conveying process, the meltblown fabric is placed on top of the cup-shaped nonwoven fabric. Because a certain pressure needs to be applied during the covering process to press the meltblown fabric onto the cup-shaped nonwoven fabric, the traditional conveying mechanism 10 typically uses a reciprocating conveyor device capable of withstanding a certain pressure and featuring a linear guide structure. However, the conveying efficiency of reciprocating conveyors is relatively low. To improve efficiency, multiple reciprocating conveyors are usually installed to operate simultaneously. This results in the conveying mechanism 10 of the production equipment occupying too large a footprint, incurring high investment costs, and requiring more frequent daily operation and maintenance, which is detrimental to cost reduction and efficiency improvement in the factory.

[0056] This invention uses a rotating conveyor belt 12 in the conveying mechanism 10 to drive the fixture assembly to be conveyed in a cyclic manner. Only one conveying mechanism 10 is needed to achieve efficient conveying, thereby reducing the footprint of the equipment, reducing investment costs, and reducing maintenance costs, which is beneficial to the factory in terms of cost reduction and efficiency improvement.

[0057] Secondly, the track assembly is fixed to the conveyor support 11 and parallel to the circulation path of the conveyor belt 12. It supports the bottom of the fixture assembly, allowing it to move smoothly along the production direction under the drive of the conveyor belt 12, thus enhancing the load-bearing stability during the pressing process. This invention supports the circulating fixture assembly using the track assembly, maintaining the high efficiency of single-channel circulating conveying while meeting the pressure-bearing requirements during material pressing, resolving the contradiction between 'high-efficiency conveying' and 'pressure-bearing capacity'. Since the carrying capacity of the circulating conveyor belt 12 is limited, the track assembly is preferably used to support the fixture assembly, enhancing its load-bearing performance and facilitating the pressing of meltblown fabric.

[0058] like Figures 3 to 5 As shown, preferably, the fixture assembly includes a cup-shaped punch 17, a fixture base plate 18, and a belt tooth 19. The cup-shaped punch 17 is fixed to one side of the fixture base plate 18, and the other side of the fixture base plate 18 is mounted on the conveyor belt 12 via the belt tooth 19. The track assembly includes two symmetrical side tracks that support both sides of the fixture base plate 18.

[0059] Specifically, in order to facilitate the fixing of the cup-shaped punch 17 and bear the pressure, it is preferable to install a fixture base plate 18 on the conveyor belt 12, so that the two bottom surfaces of the fixture base plate 18 overlap the side rails of the track assembly, thereby moving along the track assembly and, with the support of the side rails, assisting the cup-shaped punch 17 in bearing the closing pressure of the nesting mechanism 20.

[0060] Secondly, since the fixture base plate 18 needs to circulate with the conveyor belt 12, meaning it needs to rotate from the position of the conveyor wheel 13, the synchronous belt fixing seat used in traditional reciprocating conveyor devices cannot be used for fixing. This application fixes the fixture base plate 18 to the conveyor belt 12 by setting a belt dummy tooth 19. The belt dummy tooth 19 is embedded in the tooth groove on the inner circumference of the conveyor belt 12 and fixed to the fixture base plate 18 with bolts. This structure does not affect the normal meshing of the conveyor belt 12 and the conveyor wheel 13, and allows the fixture assembly to move synchronously and circulate with the conveyor belt 12, achieving continuous conveying.

[0061] like Figure 3 and Figure 4 As shown, preferably, the track assembly has an upper track 15 and a lower track 16 respectively fixed to the conveyor bracket 11. The upper track 15 is installed at the position of the tight side of the conveyor belt 12, thereby supporting the side of the fixture base plate 18 where the conveyor belt 12 is installed; the lower track 16 is installed at the position of the loose side of the conveyor belt 12, thereby supporting the side of the fixture base plate 18 where the cup-shaped punch 17 is installed.

[0062] Specifically, at the position of the belt body on the tight side of the upper conveyor belt 12, it is necessary to support the side of the fixture base plate 18 where the conveyor belt 12 is installed, so as to bear the closing pressure of the nesting mechanism 20 on the cup-shaped punch 17. Therefore, the upper track 15 is set to support the fixture base plate 18.

[0063] Secondly, since the fixture components have weight and multiple fixture components are installed on the conveyor belt 12, when the fixture components rotate with the conveyor belt 12 to the slack side, the fixture components will exert a downward traction force on the conveyor belt 12, affecting the tension of the conveyor belt 12 and even affecting the long-term service life of the conveyor belt 12. Therefore, it is preferable to set a lower track 16 at the position of the belt body on the slack side of the lower layer of the conveyor belt 12, and use the lower track 16 to support the side of the fixture base plate 18 where the cup-shaped punch 17 is installed, so as to prevent it from exerting a downward traction force on the conveyor belt 12.

[0064] Furthermore, to adjust the tension of the conveyor belt 12, it is preferable to use tensioning wheels, as is common in the prior art, to tension the conveyor belt 12. To facilitate the smooth entry of the fixture base plate 18 into the track assembly under the drive of the conveyor belt 12, it is preferable to set the entry points of the fixture base plate 18 at both ends of the track assembly as inclined surfaces or rounded corners, thereby assisting the fixture base plate 18 in entering the support surface of the track assembly.

[0065] like Figures 6 to 8As shown, preferably, the fabric feeding mechanism 20 includes a fabric support guide 21, a fabric cutting device 22, a fabric pulling device 30, a material lifting device 36, and a fabric covering device 40. The fabric support guide 21 guides and expands the meltblown fabric raw material 85, so that the meltblown fabric is spread flat on the fabric cutting device 22 after being expanded. The fabric cutting device 22 includes an electric fabric cutting shear 23 and a shear power device 24. The shear power device 24 drives the electric fabric cutting shear 23 to cut the flat meltblown fabric to form a single sheet of fabric. The fabric pulling device 30 includes a fabric pulling clamping assembly 31 and a fabric pulling power device 35. The fabric pulling clamping assembly 31 clamps the meltblown fabric at the shear device, and the fabric pulling power device 35 drives the fabric pulling clamping assembly 31 to move horizontally, so that the meltblown fabric is clamped at the shear device. The fabric is moved to the top material device 36. The top material device 36 is equipped with a top material punch 37 and a top material cylinder 38. The top material cylinder 38 drives the top material punch 37 to lift upwards, performing a pre-forming and spreading operation on the single piece of fabric held by the fabric clamping assembly 31. The cover material device 40 is equipped with a cover material clamping assembly 41, a cover material transferring assembly 50, and a cover material pressing assembly 54. The cover material clamping assembly 41 clamps the single piece of fabric at the top material device 36. The cover material transferring assembly 50 drives the cover material clamping assembly 41 to move, moving the single piece of fabric to the fixture assembly of the conveying mechanism 10 and placing it on the cup-shaped nonwoven fabric. The cover material pressing assembly 54 presses the single piece of fabric on the cup-shaped nonwoven fabric, making it tightly adhere to the surface of the cup-shaped nonwoven fabric to form a cup-shaped fabric.

[0066] Specifically, since the meltblown fabric raw material 85 supplied by the feeding group 80 is in a bonded state during the feeding process, a fabric support guide 21 can be set up to guide and expand the bonded meltblown fabric, gradually expanding it from a bonded state to an inverted V-shape, and then further expanding it to a flat state, facilitating subsequent top-feeding operations. The fabric cutting device 22 can cut the continuous flat meltblown fabric according to the length and size of the cup-shaped mask, facilitating subsequent operations. To facilitate the operation of the fabric cutting electric shears 23, a shear power device 24 is preferably set up to drive the electric shears, causing them to cut the fabric perpendicular to the conveying direction.

[0067] Secondly, to facilitate the movement of the meltblown fabric along the fabric support guide 21 and to smoothly expand the meltblown fabric, a fabric pulling device 30 is preferably provided to pull the meltblown fabric. The fabric pulling clamping assembly 31 first clamps the end of the meltblown fabric cut at the fabric cutting device 22, and then the moving power provided by the fabric pulling power device 35 pulls the meltblown fabric forward along the fabric support guide 21, gradually expanding it to a flat state. Maintaining this flat state, it passes through the scissor device and stops at the top material device 36. At this time, the scissor power device 24 drives the fabric cutting electric scissors 23 to move perpendicular to the meltblown fabric conveying direction, thereby cutting the meltblown fabric stopped at the scissor device. Subsequently, while the fabric pulling clamping assembly 31 maintains the clamping state, the driving force of the top material cylinder 38 drives the top material punch 37 to rise, pre-forming and expanding the clamped single sheet of meltblown fabric, initially forming an arc that matches the cup-shaped nonwoven fabric, preparing for subsequent closing.

[0068] Next, after the material is ejected, the fabric clamping assembly 31 releases the meltblown fabric, allowing the cover fabric clamping assembly 41 to clamp the meltblown fabric. Then, the cover fabric transfer assembly 50 moves the meltblown fabric and places it on the cup-shaped punch 17. Finally, the cover fabric pressing assembly 54 closes the meltblown fabric, making it adhere tightly to the cup-shaped nonwoven fabric.

[0069] like Figure 8 As shown, preferably, the fabric cutting device 22 is further provided with a fabric cutting bracket 25, a fabric cutting pressure plate 26, and a pressure plate cylinder 27. The fabric cutting bracket 25 is fixedly connected to the top of the fabric cutting device 22, and the pressure plate cylinder 27 is fixedly connected to the fabric cutting bracket 25. The fabric cutting pressure plate 26 is slidably connected to the fabric cutting bracket 25 in the vertical direction through a guide shaft and a linear bearing. Its top end is rigidly connected to the piston end of the pressure plate cylinder 27, so that the pressure plate cylinder 27 drives the fabric cutting pressure plate 26 to move up and down, pressing the meltblown fabric during fabric cutting and preventing its displacement.

[0070] Specifically, during the process of cutting meltblown fabric with electric shears 23, in order to prevent the meltblown fabric from moving, it is preferable to set a fabric cutting pressure plate 26 to press it down, so that the meltblown fabric is kept in a preset position and is smoothly cut by electric shears 23.

[0071] Secondly, since the fabric cutting plate 26 needs to move up and down, in order to ensure its smooth and precise up and down movement, it is preferable to set up a linear motion module composed of a guide shaft and a linear bearing, as in the prior art, and use the plate cylinder 27 to drive it so that it can press or release the meltblown fabric.

[0072] In addition, the scissor power unit 24 can be configured using a servo motor, servo reducer, and belt module, which are existing technologies. The belt drive drives the electric fabric cutter 23 to move perpendicular to the meltblown fabric conveying direction, allowing the electric fabric cutter 23 to completely cut the meltblown fabric. The electric fabric cutter 23 is also configured using existing electric scissors, enabling it to smoothly cut the meltblown fabric.

[0073] like Figures 6 to 8 As shown, preferably, the fabric spreading clamping assembly 31 is provided with a clamping bracket 32, a clamping clamp 33 and a clamping cylinder 34. The clamping bracket 32 ​​is slidably connected to the fabric feeding mechanism 20 and is driven to the drive end of the fabric spreading power device 35. The clamping cylinder 34 is fixedly connected to the clamping bracket 32, and the clamping clamp 33 is rotatably connected to the clamping bracket 32. One end of the clamping clamp 33 is driven to the clamping cylinder 34, and the other end is used to clamp the meltblown fabric.

[0074] Specifically, in order to clamp the meltblown fabric, it is preferable to set a corresponding clamping clip 33, and use the driving force of the clamping cylinder 34 to drive the clamping clip 33 so that it can rotate relative to the clamping bracket 32, thereby clamping the meltblown fabric on the clamping bracket 32 ​​and moving linearly with the clamping bracket 32.

[0075] Secondly, the fabric pulling power device 35 can be set up using existing servo motors, servo reducers and belt modules. The belt drive drives the clamping bracket 32 ​​to move linearly along the conveying direction of the meltblown fabric, so that the meltblown fabric held by the fabric pulling clamping component 31 is pulled from the fabric cutting device 22 to the top material device 36.

[0076] like Figures 9 to 10 As shown, preferably, the cover fabric transfer assembly 50 is provided with a cover fabric crossbar 51, a first horizontal moving device 52, and a first vertical moving device 53. The cover fabric crossbar 51 spans across both sides of the conveying bracket 11 and is located above the top material device 36. The first horizontal moving device 52 is installed on the cover fabric crossbar 51, and the first vertical moving device 53 is installed on the drive end of the first horizontal moving device 52. The cover fabric clamping assembly 41 is provided with a cover fabric bracket 42, a cover fabric cylinder 43, and cover fabric grippers 44. The cover fabric bracket 42 is installed on the drive end of the first vertical moving device 53, and the cover fabric cylinder 43 is installed on the cover fabric bracket 42. The two cover fabric grippers 44 used to complete the gripping action are slidably connected to both sides of the cover fabric bracket 42, and are respectively connected to the cover fabric cylinder 43 through a transmission rod. Under the drive of the cover fabric cylinder 43, the two cover fabric grippers 44 move synchronously in opposite directions, thereby realizing the gripping or releasing operation of a single piece of fabric.

[0077] Specifically, since the fabric feeding mechanism 20 is located on the side of the conveying mechanism 10, in order to place the single piece of fabric that has completed the spreading operation onto the cup-shaped punch 17 on the conveying mechanism 10, it is preferable to set up a cover fabric transfer assembly 50. The first horizontal moving device 52 is used to move the first vertical moving device 53 and the cover fabric clamping assembly 41 laterally, and then the first vertical moving device 53 is used to move the cover fabric clamping assembly 41 vertically, so that the cover fabric clamping assembly 41 places the gripped single piece of fabric onto the cup-shaped punch 17.

[0078] Secondly, to perform a gripping operation on a single piece of fabric, a cover cylinder 43 and a cover gripper 44 are preferably provided. To grip both sides of the single piece of fabric, two cover grippers 44 are preferably simultaneously provided on both sides of the cover support 42. The cover grippers 44 are slidably connected to the cover support 42 via a linear guide module, and the traction force of the transmission rod driven by the cover cylinder 43 causes the two cover grippers 44 to move synchronously in opposite directions (i.e., move closer or further apart), thereby achieving the gripping or releasing operation of a single piece of fabric.

[0079] Secondly, since a single piece of fabric is relatively soft, using only the cover grippers 44 on both sides to grasp it may result in unstable gripping. Therefore, side grippers 45 and side cylinders 46 can be installed on the cover grippers 44. The side cylinders 46 move in a relative direction with the cover grippers 44, thereby moving the side grippers 45, which are mounted on the piston end of the side cylinders 46, to the side edge of the single piece of fabric. This allows the side cylinders 46 to drive the side grippers 45 to clamp the edge of the single piece of fabric, thus forming a stable clamping operation. The side cylinders 46 can be pneumatic finger cylinders as used in existing technology.

[0080] like Figures 9 to 10 As shown, preferably, in another embodiment, to avoid waste, the fabric cutting device 22 cuts the meltblown fabric raw material 85 to the minimum length required for cup-shaped mask production, thus the two stretched single pieces of fabric are relatively close together. For ease of production and operation, the fixture components on the conveying mechanism 10 are spaced a certain distance apart. Alternatively, to facilitate pressing operations, preferably, two sets of cover fabric devices 40 are configured along the production direction of the production equipment. Each set of cover fabric devices 40 contains two sets of gripper components and two sets of cover fabric pressing components 54, with relatively large distances between the two sets of gripper components and between the two sets of cover fabric pressing components 54. For example, in a work team composed of four sets of fixture components, the first set of cover fabric devices 40 can operate fixture components numbered 1 and 3, while the second set of cover fabric devices 40 can operate fixture components numbered 2 and 4.

[0081] Therefore, in order to correctly place two closely spaced single pieces of fabric onto two jig assemblies spaced a certain distance apart, a corresponding structure is needed. The two cover grippers 44 used to perform the gripping action are configured as a set of gripper assemblies, each set gripping a single piece of fabric. To adjust the distance between the two sets of gripper assemblies, a separation slide plate 47 and a separation cylinder 48 are preferably provided between the cover support and the cover grippers. The two separation slide plates 47 are slidably connected to both sides of the cover support, and are respectively connected to the cover cylinder 43 via transmission rods. This allows the cover cylinder 43 to drive the two separation slide plates 47 to move in opposite directions (i.e., move closer or further apart), thus enabling the two sets of gripper assemblies on the two separation slide plates 47 to perform gripping or releasing operations synchronously.

[0082] Secondly, the two cover grippers 44 in the first set of gripper assemblies are fixedly connected to the separation slide plate 47, and the two cover grippers 44 in the second set of gripper assemblies are slidably connected to the separation slide plate 47 through a linear guide module. The separation cylinder 48 is installed on the cover grippers 44 in the second set of gripper assemblies and forms a transmission connection with the cover grippers 44 in the first set of gripper assemblies through a fisheye connector, so that the separation cylinder 48 can drive the two sets of gripper assemblies to move in relative directions (i.e., move closer or further away from each other). When the two sets of gripper assemblies are close to each other by a certain distance, they are used to grip two single pieces of fabric that are relatively close to each other on the top material device 36; while when the two sets of gripper assemblies are far apart by a certain distance, they are used to place the two single pieces of fabric on two cup-shaped punches 17 that are relatively far apart.

[0083] like Figure 9 As shown, preferably, the cover pressing assembly 54 includes a pressing bracket 55, a pressing cylinder 56, a pressing collar 57, and a collar spring 58. The pressing bracket 55 is slidably connected to the cover support 42 via a guide shaft and a linear bearing. The pressing cylinder 56 is fixed to the cover support 42 and forms a transmission connection with the pressing bracket 55. The pressing collar 57 is slidably connected to the pressing bracket 55 in the vertical direction via a guide shaft and a linear bearing. The collar spring 58 is sleeved on the guide shaft, with its two ends abutting against the pressing bracket 55 and the pressing collar 57 respectively, which can buffer the pressure during pressing.

[0084] Specifically, to press the meltblown fabric onto the cup-shaped nonwoven fabric, a cover pressing assembly 54 is preferably provided. A pressing cylinder 56 drives a pressing bracket 55, which in turn moves a pressing collar 57 downwards, thereby pressing the single sheet of fabric placed on the cup-shaped nonwoven fabric. To prevent pressing stress from damaging the cup-shaped nonwoven fabric, a collar spring 58 is also preferably provided. The collar spring 58 is fitted onto a guide shaft located between the pressing collar 57 and the pressing bracket 55, with one end of the collar spring 58 abutting against the pressing bracket 55 and the other end abutting against the pressing collar 57. This allows the collar spring 58 to buffer the pressing pressure of the pressing bracket 55, preventing excessive compression that could damage the cup-shaped nonwoven fabric.

[0085] like Figure 2 and Figure 11 As shown, preferably, it also includes a flipping mechanism 60, which is provided with a flipping clamping assembly, a flipping power device 63, a flipping bracket 61, and a flipping lifting cylinder 62. The flipping clamping assembly is rotatably connected to the flipping bracket 61 and is drively connected to the drive end of the flipping power device 63. The flipping power device 63 is fixed to the flipping bracket 61 and drives the flipping clamping assembly to perform a flipping operation. The flipping bracket 61 is slidably connected to the conveying bracket 11 through the cooperation of a guide shaft and a linear bearing. The flipping lifting cylinder 62 is fixed to the conveying bracket 11, and its piston rod is driven to move the flipping bracket 61 up and down.

[0086] Specifically, since the cup-shaped fabric in the conveying mechanism 10 has an opening facing downwards, while welding requires the opening to face upwards, the flipping mechanism 60 applies a 180° flip to change the cup-shaped fabric from an opening-down to an opening-up position, facilitating subsequent welding operations. The flipping clamping assembly is used to clamp the cup-shaped fabric after it has been stacked and assembled. Then, the flipping power device 63 flips the cup-shaped fabric 180° and waits for the material transfer mechanism 70 to grab it.

[0087] Secondly, to facilitate the flipping action of the flipping clamping assembly, a flipping bracket 61 and a flipping lifting cylinder 62 are preferably also provided. Driven by the flipping lifting cylinder 62, the flipping clamping assembly first moves downwards to the position of the cup-shaped punch 17 on the conveying mechanism 10, clamping the cup-shaped fabric on the punch 17. Then, the piston rod of the flipping lifting cylinder 62 drives the flipping bracket 61 upwards a certain distance, creating space for the flipping power device 63 to drive the flipping clamping assembly to perform the flipping action. Finally, the material transfer mechanism 70 transfers the flipped cup-shaped fabric.

[0088] like Figure 11 and Figure 12 As shown, preferably, the flipping clamping assembly includes a flipping clamping plate 64 and a clamping manipulator group 65. The flipping clamping plate 64 is rotatably connected to the flipping bracket 61 via a rotating shaft and forms a transmission connection with the flipping power device 63. Multiple clamping manipulator groups 65 are respectively installed on the flipping clamping plate 64 at positions corresponding to the cup-shaped punch 17, thereby performing clamping operations on multiple cup-shaped fabrics respectively. The clamping manipulator group 65 includes a gripper base plate 66, an L-shaped gripper 67, and a gripper cylinder 68. The gripper base plate 66 is installed on the flipping clamping plate 64, and the L-shaped gripper 67 is rotatably connected to the gripper base plate 66. One end of the L-shaped gripper 67 is transmissionally connected to the piston rod of the gripper cylinder 68, and the other end is used to clamp the cup-shaped fabric.

[0089] Specifically, to simultaneously clamp multiple cup-shaped fabrics, it is preferable to install multiple sets of corresponding clamping robotic arms 65 on the flipping clamping plate 64 for clamping operations. Furthermore, to clamp the cup-shaped fabrics from both sides, it is preferable to install two L-shaped grippers 67 at each end of the gripper base plate 66, and simultaneously install two corresponding gripper cylinders 68 to drive the two L-shaped grippers 67, thereby achieving the effect of clamping the cup-shaped fabrics from both sides, making the clamping process more balanced and stable.

[0090] Secondly, the gripper cylinder 68 can be set up using a magnetic ring mini cylinder in the prior art, and in conjunction with a magnetic switch in the prior art, it can sense the specific stroke of the cylinder and adjust the gripping distance or gripping force.

[0091] like Figure 2 and Figure 13 As shown, preferably, it also includes a material transfer mechanism 70, which is provided with a material transfer gantry 71, a second horizontal transfer device 72, a second vertical transfer device 73, and a material transfer gripping device 74. The material transfer gantry 71 spans the conveying mechanism 10 and the welding mechanism 82. The second horizontal transfer device 72 is installed on the material transfer gantry 71. The second vertical transfer device 73 is installed on the drive end of the second horizontal transfer device 72. The material transfer gripping device 74 is provided with a material transfer bracket 75, a material transfer gripper 77, and a material transfer cylinder 78. The material transfer bracket 75 is installed on the drive end of the second vertical transfer device 73. The material transfer cylinder 78 is fixedly connected to the material transfer bracket 75. The material transfer gripper 77 is drivenly connected to the piston rod of the material transfer cylinder 78, thereby realizing the gripping action.

[0092] Specifically, in order to move the flipped cup-shaped fabric to the welding mechanism 82, a material transfer mechanism 70 is preferably provided to perform the moving operation. In order to reduce the overall length of the equipment and reduce the floor space, it is preferable to set the conveying mechanism 10 and a part of the welding mechanism 82 to be staggered. Therefore, the flipping mechanism 60 and a part of the welding mechanism 82 are in a parallel state. In order to move the cup-shaped fabric on the flipping mechanism 60 to the welding mechanism 82, a material transfer gantry 71 is required to straddle the flipping mechanism 60 and the welding mechanism 82 respectively. The second lateral movement device 72 provided on the material transfer gantry 71 is used to drive the second vertical movement device 73 and the material transfer gripping device 74 laterally, so that the material transfer gripping device 74 moves the gripped cup-shaped fabric from the flipping mechanism 60 to the welding mechanism 82.

[0093] Secondly, the transfer cylinder 78 can be a wide-mouth, large-diameter finger-gripping cylinder as in the prior art, and a transfer lever 76 is rotatably connected to the transfer bracket 75, so that one end of the transfer lever 76 is driven to the transfer cylinder 78 and the other end is driven to the transfer gripper 77, thereby driving the transfer gripper 77 to perform a gripping operation on the cup-shaped fabric under the drive of the transfer cylinder 78.

[0094] Furthermore, both the first transverse movement device 52 and the second transverse movement device 72 can be configured using existing servo motors, servo reducers, and belt modules, utilizing belt transmission to drive the first vertical movement device 53 and the second vertical movement device 73 for transverse linear movement. Both the first vertical movement device 53 and the second vertical movement device 73 can be configured using existing servo motors and ball screws, utilizing the screw to drive the nut for linear movement, completing the vertical linear movement of the cover pressing assembly 54 and the material handling gripping device 74. Moreover, existing linear guides can be used to assist the first transverse movement device 52, the first vertical movement device 53, the second transverse movement device 72, and the second vertical movement device 73, making their linear movement more stable and precise.

[0095] like Figure 1 and Figure 2 As shown, preferably, the first feeding group 80 can use a meltblown fabric supply device in the prior art to supply meltblown fabric raw material 85 in a bonded state to the production equipment. The second feeding group 81 can use a cup-shaped nonwoven fabric forming device in the prior art to supply pre-formed cup-shaped nonwoven fabric to the production equipment. Moreover, in the production process of cup-shaped masks, some processes only require the inner cup nonwoven fabric to be set in the inner layer, so a cup-shaped nonwoven fabric forming device can be set up before the meltblown fabric is covered in the production equipment to provide the inner cup nonwoven fabric. In another process, an outer cup nonwoven fabric is also required to be set in the outer layer of the mask, so a cup-shaped nonwoven fabric forming device can be set up after the meltblown fabric is covered in the production equipment to provide the outer cup nonwoven fabric.

[0096] The welding mechanism 82 can be equipped with an ultrasonic welding device as used in the prior art. After welding is performed by the welding mechanism 82, a cutting mechanism 83 and a discharge mechanism 84 are also provided. The cutting mechanism 83 can use a cutting blade driven by a pressurized cylinder or hydraulic cylinder as used in the prior art to cut the edges of the semi-finished cup-shaped mask after welding, removing the waste material around the semi-finished product. The discharge mechanism 84 can use a similar mechanism to the material transfer mechanism 70 to discharge the cut cup-shaped mask, that is, to grab the cut cup-shaped mask and move it to the discharge and collection container for storage.

[0097] In the conveying mechanism 10, to improve production efficiency, it is preferable to use four sets of fixture components spaced close together to form a synchronous work team, thereby processing four cup-shaped fabrics simultaneously. Correspondingly, in subsequent production stages, the operation mode of four sets of fixtures operating simultaneously is also adopted. The conveyor belt 12 and the conveyor wheel 13 can adopt the combination structure of synchronous toothed belt and synchronous pulley in the prior art.

[0098] In this utility model, the power devices such as the conveying power device 14 and the tilting power device 63 can all be set with servo motors and gearboxes in the prior art, and are connected to the components that require power through couplings in the prior art to drive the corresponding components.

[0099] In this invention, all linear motion structures with sliding connections can be assisted by linear guide modules from the prior art to optimize the smoothness and accuracy of sliding. All rotary connection structures can be equipped with shafts or bearings to optimize the smoothness of rotation.

[0100] In this invention, both the guide shaft and the linear bearing can be linear motion modules composed of high-precision shaft devices from the prior art.

[0101] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. An automated production line for cup-shaped face masks with a single-channel circulating conveyor, characterized in that, The production equipment includes: A feeding set (80) is installed at the starting section of the production equipment to supply raw materials (85) for meltblown fabric. The second feeding group (81) is installed on the side of the production equipment along the production direction and is used to form and supply cup-shaped nonwoven fabric; The conveying mechanism (10) is installed along the production direction of the production equipment and conveys the cup-shaped nonwoven fabric and meltblown fabric raw materials (85); The fabric assembly mechanism (20) is used to expand the meltblown fabric raw material (85) and cover the expanded meltblown fabric raw material (85) onto the cup-shaped nonwoven fabric, completing the stacking and assembly operation of the meltblown fabric and the nonwoven fabric to form a cup-shaped fabric; and Welding mechanism (82) is used to weld meltblown fabric and nonwoven fabric on cup-shaped fabric to firmly weld the two into cup-shaped mask semi-finished product; The conveying mechanism (10) includes a conveying bracket (11), a jig assembly, a track assembly, a conveyor belt (12), a conveyor wheel (13), and a conveying power device (14). The conveying power device (14) is fixed to the conveying bracket (11). The conveyor wheel (13) is rotatably connected to the conveying bracket (11) and is drivenly connected to the output shaft of the conveying power device (14). The conveyor belt (12) is sleeved on the conveyor wheel (13) and thus rotates cyclically with the conveyor wheel (13). Multiple jig assemblies are fixed to the conveyor belt (12) at intervals and thus rotate cyclically with the conveyor belt (12). The track assembly is fixed to the conveying bracket (11) and is used to support the jig assembly so that the jig assembly can be translated along the extension direction of the track assembly under the drive of the conveyor belt (12).

2. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 1, characterized in that, The fixture assembly includes a cup-shaped punch (17), a fixture base plate (18), and a belt tooth (19). The cup-shaped punch (17) is fixed to one side of the fixture base plate (18), and the other side of the fixture base plate (18) is mounted on the conveyor belt (12) via the belt tooth (19). The track assembly includes two symmetrical side tracks that support the two sides of the fixture base plate (18) respectively.

3. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 2, characterized in that, The track assembly has an upper track (15) and a lower track (16) respectively fixed to the conveyor bracket (11). The upper track (15) is installed at the position of the tight side of the conveyor belt (12) to support the side of the fixture base plate (18) where the conveyor belt (12) is installed. The lower track (16) is installed at the position of the loose side of the conveyor belt (12) to support the side of the fixture base plate (18) where the cup-shaped punch (17) is installed.

4. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 1, characterized in that, The fabric feeding mechanism (20) is equipped with a fabric support guide (21), a fabric cutting device (22), a fabric pulling device (30), a material lifting device (36), and a fabric covering device (40). The fabric support guide (21) is used to guide and expand the meltblown fabric raw material (85), so that the meltblown fabric is spread flat on the fabric cutting device (22) after being spread out. The fabric cutting device (22) is equipped with an electric fabric cutting shear (23) and a shear power device (24). The shear power device (24) drives the electric fabric cutting shear (23) to cut the flat meltblown fabric to form a single piece of fabric. The fabric pulling device (30) is equipped with a fabric pulling clamping assembly (31) and a fabric pulling power device (35). The fabric pulling clamping assembly (31) clamps the meltblown fabric at the shear device. The fabric pulling power device (35) drives the fabric pulling clamping assembly (31) to move horizontally, so that the meltblown fabric is clamped from the shear device. The material is moved to the top material device (36); the top material device (36) is provided with a top material punch (37) and a top material cylinder (38). The top material cylinder (38) drives the top material punch (37) to lift upwards and pre-form and expand the single piece of fabric held by the fabric clamping assembly (31); the cover material device (40) is provided with a cover material clamping assembly (41), a cover material transfer assembly (50) and a cover material pressing assembly (54). The cover material clamping assembly (41) clamps the single piece of fabric at the top material device (36). The cover material transfer assembly (50) drives the cover material clamping assembly (41) to move and move the single piece of fabric to the fixture assembly of the conveying mechanism (10) and place it on the cup-shaped nonwoven fabric. The cover material pressing assembly (54) presses the single piece of fabric on the cup-shaped nonwoven fabric so that it is tightly attached to the surface of the cup-shaped nonwoven fabric to form a cup-shaped fabric.

5. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 4, characterized in that, The fabric cutting device (22) is also equipped with a fabric cutting bracket (25), a fabric cutting pressure plate (26), and a pressure plate cylinder (27). The fabric cutting bracket (25) is fixedly connected to the top of the fabric cutting device (22), and the pressure plate cylinder (27) is fixedly connected to the fabric cutting bracket (25). The fabric cutting pressure plate (26) is slidably connected to the fabric cutting bracket (25) in the vertical direction through a guide shaft and a linear bearing. Its top end is rigidly connected to the piston end of the pressure plate cylinder (27), so that the pressure plate cylinder (27) drives the fabric cutting pressure plate (26) to move up and down, pressing the meltblown fabric during fabric cutting to prevent its displacement.

6. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 4, characterized in that, The fabric clamping assembly (31) is provided with a clamping bracket (32), a clamping clip (33) and a clamping cylinder (34). The clamping bracket (32) is slidably connected to the fabric feeding mechanism (20) and is driven to the drive end of the fabric pulling power device (35). The clamping cylinder (34) is fixed to the clamping bracket (32), and the clamping clip (33) is rotatably connected to the clamping bracket (32). One end of the clamping clip (33) is driven to the clamping cylinder (34), and the other end is used to clamp the meltblown fabric.

7. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 4, characterized in that, The cover fabric transfer assembly (50) is provided with a cover fabric crossbar (51), a first transverse transfer device (52), and a first vertical transfer device (53). The cover fabric crossbar (51) spans across both sides of the conveying bracket (11) and is located above the top material device (36). The first transverse transfer device (52) is installed on the cover fabric crossbar (51), and the first vertical transfer device (53) is installed on the drive end of the first transverse transfer device (52). The cover fabric clamping assembly (41) is provided with a cover fabric bracket (42), a cover fabric cylinder (43), and a cover fabric gripper ( 44), the cover support (42) is installed on the drive end of the first vertical moving device (53), and the cover cylinder (43) is installed on the cover support (42); the two cover grippers (44) used to complete the gripping action are slidably connected to both sides of the cover support (42), and are respectively connected to the cover cylinder (43) through the transmission rod. Under the drive of the cover cylinder (43), the two cover grippers (44) move in opposite directions in sync, thereby realizing the gripping or releasing operation of a single piece of fabric.

8. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 4, characterized in that, The cover pressing assembly (54) is provided with a pressing bracket (55), a pressing cylinder (56), a pressing collar (57) and a collar spring (58). The pressing bracket (55) is slidably connected to the cover support (42) through a guide shaft and a linear bearing. The pressing cylinder (56) is fixed to the cover support (42) and forms a transmission connection with the pressing bracket (55). The pressing collar (57) is slidably connected to the pressing bracket (55) in the vertical direction through a guide shaft and a linear bearing. The collar spring (58) is sleeved on the guide shaft, and its two ends abut against the pressing bracket (55) and the pressing collar (57) respectively, which can buffer the pressure during pressing.

9. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 1, characterized in that, It also includes a flipping mechanism (60), which is provided with a flipping clamping assembly, a flipping power device (63), a flipping bracket (61) and a flipping lifting cylinder (62). The flipping clamping assembly is rotatably connected to the flipping bracket (61) and is driven to the drive end of the flipping power device (63). The flipping power device (63) is fixed to the flipping bracket (61) and drives the flipping clamping assembly to perform a flipping operation. The flipping bracket (61) is slidably connected to the conveying bracket (11) through the cooperation of the guide shaft and the linear bearing. The flipping lifting cylinder (62) is fixed to the conveying bracket (11), and its piston rod forms a driving connection with the flipping bracket (61) to drive the flipping bracket (61) to move up and down.

10. The automatic production equipment for cup-shaped masks with single-channel circulating conveying according to claim 9, characterized in that, The flipping clamping assembly is provided with a flipping clamping plate (64) and a clamping manipulator group (65). The flipping clamping plate (64) is rotatably connected to the flipping bracket (61) through a rotating shaft and forms a transmission connection with the flipping power device (63). Multiple clamping manipulator groups (65) are respectively installed on the flipping clamping plate (64) at the position corresponding to the cup-shaped punch (17) so as to perform clamping operations on multiple cup-shaped fabrics respectively. The clamping manipulator group (65) is provided with a gripper base plate (66), an L-shaped gripper (67) and a gripper cylinder (68). The gripper base plate (66) is installed on the flipping clamping plate (64). The L-shaped gripper (67) is rotatably connected to the gripper base plate (66). One end of the L-shaped gripper (67) is drivenly connected to the piston rod of the gripper cylinder (68), and the other end is used to clamp the cup-shaped fabric.

Images