A cutting piece separation device and a method for controlling the pressure of the adhesive cloth

Abstract

The present invention provides a piece separation device and a method for controlling the pressure of the adhesive cloth. The piece separation device includes an adhesive cloth driving source, an adhesive cloth base, a tape roll, a tape take-up wheel, and an adhesive cloth wheel that are all rotatably mounted on the adhesive cloth base, an electronic control module, a fixed seat fixed to the adhesive cloth base, a first guiding shaft movably mounted in the fixed seat, a first mounting seat fixed to the first guiding shaft, a spring sleeved on the first guiding shaft, a sensing member, and a sensor. The adhesive cloth wheel is mounted in the first mounting seat. The spring abuts against the fixed seat and the first mounting seat. The sensing member and the sensor are respectively fixedly mounted on the first guiding shaft and the adhesive cloth base. The adhesive cloth driving source and the sensor are both communicatively connected to the electronic control module. The electronic control module controls the reverse action of the adhesive cloth driving source according to the output signal of the sensor, so that a stable adhesive cloth pressure can be maintained each time a section of the tape on the outer periphery of the adhesive cloth wheel picks up the uppermost surface piece, ensuring the stability and reliability of the piece separation.

Description

Technical Field

[0001] The present invention relates to the field of cut piece separation and labeling, in particular to a cut piece separation device and a method for controlling the sticking cloth pressure using the cut piece separation device. Background Art

[0002] In the process of clothing production, in order to eliminate the clothing quality problems caused by the front-back color difference of the fabric, it is necessary to mark the number of layers for each layer of cut pieces in a stack of cut pieces after cutting on the cutting bed, so that the cut pieces of the same layer can be sewn together. Based on this, an automatic cut piece separation and labeling machine is required to be able to simultaneously achieve cut piece separation and cut piece labeling; for example, a cut piece automatic labeling device disclosed in a Chinese utility model patent with the authorization announcement number CN212686157U.

[0003] Currently, the separation of cut pieces is all by an adhesive separation method, with a sticking cloth wheel that can reciprocate, and the lower end of the sticking cloth wheel tightly abuts against the tape. However, it is found in actual operation that when the thickness of the stack of cut pieces is different, the elasticity of the surface cut pieces is different, which makes the contact area between the sticking cloth wheel and the cut pieces vary greatly, and also makes the sticking force of the sticking cloth wheel on the cut pieces different, all of which will affect the stability and reliability of cut piece separation.

[0004] In addition, in order to mark each layer, it is necessary to wind up a small section of the tape after each cut piece separation and perform tape feeding to update the tape at the lower end of the sticking cloth wheel in a small area. However, the tape winding wheel is directly driven by a stepping motor. However, as the tape is continuously consumed, the outer diameter of the tape roll gradually decreases, and the diameter of the tape winding roll composed of the tape winding wheel and the tape on its outer circumference gradually increases. When the driving motor rotates by the same angle, the length of the tape fed each time under the sticking cloth wheel is different, that is, the existing cut piece separation device cannot accurately control the equal feeding of the tape, so that the constant adhesion force of the tape cannot be well guaranteed. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a cut piece separation device that can ensure a stable sticking cloth pressure when the tape at the sticking cloth wheel picks up the cut pieces.

[0006] To achieve the above object, the present invention provides a cut piece separation device, which includes a cloth sticking driving source, a cloth sticking base, a tape roll, a tape take-up wheel, and a cloth sticking wheel that are all rotatably installed on the cloth sticking base. The cloth sticking driving source is connected to the cloth sticking base and drives the cloth sticking base to reciprocate. The tape on the tape roll passes over the cloth sticking wheel and is connected to the tape take-up wheel; the cut piece separation device further includes an electronic control module, a fixed seat fixed to the cloth sticking base, a first guiding shaft movably installed in the fixed seat, a first mounting seat fixed to the end of the first guiding shaft, a spring sleeved on the first guiding shaft, a sensing member, and a sensor. The first guiding shaft axially extends along the moving direction of the cloth sticking base. The cloth sticking wheel is rotatably installed in the first mounting seat. The two ends of the spring respectively abut against the fixed seat and the first mounting seat. The sensing member and the sensor are respectively fixedly installed on the first guiding shaft and the cloth sticking base. The sensor can sense the sensing member. The cloth sticking driving source and the sensor are both communicatively connected to the electronic control module.

[0007] Further, the cut piece separation device further includes a second mounting seat fixed on the first guiding shaft, and the sensing member is fixed in the second mounting seat; the fixed seat has a horizontal plate portion for supporting the first guiding shaft, and the first mounting seat and the second mounting seat are distributed on both sides of the horizontal plate portion along the moving direction of the first guiding shaft.

[0008] Preferably, the sensing member is a magnet, and the sensor is a linear Hall sensor.

[0009] Further, the cut piece separation device further includes a limit driving source installed on the cloth sticking base. The limit driving source has a limit driving portion that can be telescoped along the moving direction of the first guiding shaft, and the limit driving portion is used to limit the first guiding shaft.

[0010] Further, the cut piece separation device further includes a second guiding shaft parallel to the first guiding shaft. The second guiding shaft is movably installed in the fixed seat. One end of the second guiding shaft is fixed to the first mounting seat, and the other end of the second guiding shaft is fixed with a limit plate. The limit plate is distributed on the side of the fixed seat facing away from the first mounting seat and can abut against the fixed seat.

[0011] Further, the cut piece separation device further includes a mounting shaft. The first mounting seat has two mounting arms arranged oppositely along the axial direction of the cloth sticking wheel. The two ends of the mounting shaft are respectively fixed in the two mounting arms, and the cloth sticking wheel is rotatably installed on the mounting shaft through a bearing.

[0012] Further, the piece separation device further includes a glue collecting drive source and a roller encoder, both of which are mounted on the glue sticking base. The glue collecting drive source is in transmission connection with the glue collecting belt pulley to drive the glue collecting belt pulley to rotate. The detection roller of the roller encoder is in contact and cooperation with the outer peripheral surface of the tape roll. Both the glue collecting drive source and the roller encoder are in communication connection with the electronic control module.

[0013] Further, the piece separation device further includes a compression torsion spring. Both ends of the compression torsion spring are respectively connected to the glue sticking base and the detection roller of the roller encoder, and apply a force towards the tape roll to the detection roller of the roller encoder.

[0014] Further, the piece separation device further includes a feeding platform located on the lower side of the glue sticking wheel, and a soft rubber pad provided on the upper end surface of the feeding platform. The soft rubber pad is used to support a stack of pieces.

[0015] Further, the piece separation device further includes a tension rod fixed on the glue sticking base. The tension rod is distributed between the tape roll and the glue sticking wheel and abuts against the tape.

[0016] The present application also provides a glue sticking pressure control method, which uses the piece separation device as described above. The glue sticking pressure control method includes the following steps:

[0017] S1. Preset a potential threshold value in the electronic control module;

[0018] S2. The piece separation device operates: The electronic control module sends an instruction to the glue sticking drive source. The glue sticking drive source drives the glue sticking base to move until a section of the tape on the outer periphery of the glue sticking wheel contacts the topmost surface piece of a stack of pieces. The spring is compressed, and the output signal of the inductor changes;

[0019] When the electronic control module determines that the output signal of the inductor reaches the potential threshold value, the electronic control module sends an instruction to the glue sticking drive source. The glue sticking drive source drives the glue sticking base to move in the reverse direction, and a section of the tape on the outer periphery of the glue sticking wheel picks up the surface piece, realizing piece separation;

[0020] S3. Repeat step S2 until the piece separation operation is completed.

[0021] As described above, the piece separation device and the glue sticking pressure control method involved in the present invention have the following beneficial effects:

[0022] In this application, the compressive deformation of the spring is directly proportional to the adhesive pressure exerted by the adhesive cloth wheel on the cut piece. The greater the adhesive pressure, the greater the compressive deformation of the spring. The compressive deformation of the spring can be obtained according to the output signal of the sensor. Thus, the electronic control module controls the reverse action of the adhesive cloth driving source according to the output signal of the sensor, so that a stable adhesive pressure can be maintained every time a section of the tape on the outer circumference of the adhesive cloth wheel picks up the uppermost surface cut piece, thereby enabling the cut piece separating device to maintain a stable picking force when picking up cut pieces under any circumstances, and ultimately ensuring the stability and reliability of cut piece separation.

[0023] On the premise of maintaining a stable adhesive pressure for a section of the tape at the adhesive cloth wheel, this application can also control the feeding of a specified length of new tape by the tape receiving wheel into the adhesive area of the adhesive cloth wheel, which further helps to ensure the stability and reliability of cut piece separation. Brief Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the cut piece separating device in this application.

[0025] Figure 2 and Figure 3 is Figure 1 a schematic structural diagram of the adhesive cloth base and its mounted components from different perspectives in

[0026] Figure 4 It is a schematic structural diagram of the cut piece separating device at the adhesive cloth wheel in this application.

[0027] Description of Component Labels

[0028] 10 Adhesive Cloth Driving Source

[0029] 20 Adhesive Cloth Base

[0030] 30 Tape Roll

[0031] 40 Tape Receiving Wheel

[0032] 50 Adhesive Cloth Wheel

[0033] 60 Fixed Seat

[0034] 61 Horizontal Plate Portion

[0035] 62 Vertical Plate Portion

[0036] 70 First Guide Shaft

[0037] 80 First Mounting Seat

[0038] 81 Mounting Arm

[0039] 90 Spring

[0040] 110 Second Mounting Seat

[0041] 120 Limit driving source

[0042] 121 Limit driving part

[0043] 122 Electromagnet

[0044] 130 Second guiding shaft

[0045] 140 Limit plate

[0046] 150 Mounting shaft

[0047] 160 Glue-receiving driving source

[0048] 170 Roller encoder

[0049] 171 Detection roller

[0050] 180 Compression torsion spring

[0051] 190 Tension rod

[0052] 200 Third mounting seat

[0053] 210 Driving pulley

[0054] 220 Driven pulley

[0055] 230 Transmission belt

[0056] 240 Rotating shaft Specific embodiments

[0057] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0058] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present invention.

[0059] This application provides a cut piece separation device and a method for controlling the sticking cloth pressure using the cut piece separation device. As Figure 1As shown in the figure, the cut piece separation device involved in the present application includes a cloth sticking driving source 10, a cloth sticking base 20, a tape roll 30, a tape take-up wheel 40 and a cloth sticking wheel 50 that are all rotatably installed on the cloth sticking base 20, and a material placing platform located on the lower side of the cloth sticking wheel 50. The cloth sticking driving source 10 is connected to the cloth sticking base 20 and drives the cloth sticking base 20 to reciprocate. The tape on the tape roll 30 passes over the cloth sticking wheel 50 and is connected to the tape take-up wheel 40. In this embodiment, the cloth sticking driving source 10 drives the cloth sticking base 20 to reciprocate in the up and down direction; a section of tape abuts against the lower end of the cloth sticking wheel 50, and the adhesive layer of this section of tape faces downwards. When separating the cut pieces, the cloth sticking driving source 10 first drives the cloth sticking base 20 to move downwards. After this section of tape at the lower end of the cloth sticking wheel 50 picks up the cut pieces, the cloth sticking driving source 10 then drives the cloth sticking base 20 to move upwards and reset.

[0060] Further, as Figure 1 shown, the cut piece separation device involved in the present application further includes an electronic control module, a fixing seat 60 fixed to the cloth sticking base 20 by screws, a first guiding shaft 70 axially extending along the moving direction of the cloth sticking base 20, a first mounting seat 80 fixed to the lower end of the first guiding shaft 70 by screws, a spring 90 sleeved on the first guiding shaft 70, a sensing member, and a sensor; wherein, the first guiding shaft 70 is axially movably installed up and down in the fixing seat 60; the cloth sticking wheel 50 is rotatably installed in the first mounting seat 80; the spring 90 axially extends in the up and down direction, and the upper and lower ends of the spring 90 respectively abut against the fixing seat 60 and the first mounting seat 80; the sensing member and the sensor are respectively fixedly installed on the first guiding shaft 70 and the cloth sticking base 20, and the sensor can sense the sensing member; thus, the sensing member can be fixedly installed on the first guiding shaft 70 and the sensor is fixedly installed on the cloth sticking base 20; or, the sensing member is fixedly installed on the cloth sticking base 20 and the sensor is fixedly installed on the first guiding shaft 70; in this embodiment, the sensing member is fixedly installed on the first guiding shaft 70 and the sensor is fixedly installed on the cloth sticking base 20; both the cloth sticking driving source 10 and the sensor are communicatively connected to the electronic control module.

[0061] Further, the cloth sticking pressure control method involved in the present application includes the following steps:

[0062] Step S1: Preset a potential threshold in the electronic control module, and this potential threshold is set by the user through a potentiometer, and the potentiometer is communicatively connected to the electronic control module.

[0063] Step S2: The cut piece separation device works:

[0064] A stack of cut pieces is placed on the material placing platform;

[0065] When the electronic control module sends an instruction to the cloth sticking driving source 10, the cloth sticking driving source 10 drives the cloth sticking base 20 to move downward. Then the cloth sticking base 20 drives the cloth sticking wheel 50 and the adhesive tape to move downward together until a section of the adhesive tape at the lower end of the cloth sticking wheel 50 contacts the topmost surface cutting piece of a stack of cutting pieces. Starting from the moment when the adhesive tape at the lower end of the cloth sticking wheel 50 abuts against the surface cutting piece, as the cloth sticking driving source 10 continues to drive the cloth sticking base 20 to move downward, the cloth sticking base 20 drives the fixed seat 60 to move downward relative to the first guiding shaft 70. Then the spring 90 is compressed and deformed, and the relative position between the sensing part and the sensor changes, so the output signal of the sensor changes. During this process, the compression deformation of the spring 90 is directly proportional to the cloth sticking pressure exerted by the cloth sticking wheel 50 on the cutting piece. The greater the cloth sticking pressure, the greater the compression deformation of the spring 90. And the compression deformation of the spring 90 can be obtained according to the output signal of the sensor, so the magnitude of the cloth sticking pressure can be indirectly obtained.

[0066] When the electronic control module determines that the output signal of the sensor reaches the potential threshold value, the electronic control module sends an instruction to the cloth sticking driving source 10. The cloth sticking driving source 10 drives the cloth sticking base 20 to move in the reverse direction. Then the cloth sticking base 20 drives the fixed seat 60, the first mounting seat 80 and the cloth sticking wheel 50 to move upward. A section of the adhesive tape at the lower end of the cloth sticking wheel 50 sticks up the surface cutting piece, realizing the separation of the cutting pieces.

[0067] Step S3: Repeat step S2 until the operation of separating the cutting pieces is completed.

[0068] Therefore, in the present application, the mounting structure of the cloth sticking wheel 50 is set as a telescopic structure with a spring 90. When separating the cutting pieces, the electronic control module controls whether the cloth sticking driving source 10 moves in the reverse direction according to whether the output signal of the sensor reaches the potential threshold value. Only when the output signal of the sensor reaches the set potential threshold value, the electronic control module will control the cloth sticking driving source 10 to move in the reverse direction to lift up the stuck surface cutting piece. And the output signal of the sensor, the compression deformation of the spring 90, and the cloth sticking pressure correspond to each other one by one. Therefore, every time the output signal of the sensor reaches the set potential threshold value, the electronic control module controls the cloth sticking driving source 10 to move in the reverse direction, making the compression deformation of the spring 90 the same every time when sticking the surface cutting piece. That is, every time the adhesive tape at the lower end of the cloth sticking wheel 50 sticks the surface cutting piece, it can maintain a stable cloth sticking pressure, realizing strict control of the cloth sticking pressure exerted by the cloth sticking wheel 50 on the cutting piece through the adhesive tape. At the same time, by strictly controlling the tape feeding amount after each cloth sticking and cutting piece action, the adhesive force of the adhesive tape is ensured to be constant, so that the cutting piece separating device can maintain a stable sticking force when sticking the cutting pieces under any circumstances, ultimately ensuring the stability and reliability of the cutting piece separation.

[0069] In addition, the potential threshold is determined by a potentiometer, so the potential threshold of the potentiometer can be adjusted according to the characteristics of different fabrics to achieve the adjustment of the potential threshold, so that the size of the cloth sticking pressure can also be adjusted when sticking the surface layer cut pieces each time. The cloth sticking pressure is adapted to the fabric characteristics, so that the cut piece separation effect can be kept stable and reliable under different conditions, and the cut pieces can be prevented from being damaged due to excessive cloth sticking pressure, increasing the applicability of the machine. Preferably, the cut piece separation device further includes a soft rubber pad arranged on the upper end surface of the material placing platform, and the soft rubber pad is used for supporting a stack of cut pieces; during the cut piece separation process, as the cut pieces are continuously separated, the thickness of a stack of cut pieces on the material placing platform gradually decreases. The soft rubber pad can avoid the difference in the compressibility of the cut pieces caused by the number of cut pieces, and reduce the difference in the deformation amount caused by the different thicknesses of a stack of cut pieces, so as to ensure the consistency of the sticking force when the tape sticks the cut pieces each time.

[0070] Furthermore, as Figure 4 shown, the fixing seat 60 is in an L shape and includes a vertically extending vertical plate portion 62 and a horizontally extending horizontal plate portion 61 extending from the lower end of the vertical plate portion 62. The vertical plate portion 62 is fixed on the cloth sticking base 20 by several screws, thereby fixing the whole fixing seat 60 on the cloth sticking base 20; the first guide shaft 70 is supported in the horizontal plate portion 61 in a vertically movable manner. The cut piece separation device further includes a second mounting seat 110 fixed to the upper end of the first guide shaft 70 and a third mounting seat 200 fixed to the cloth sticking base 20 by several screws. The third mounting seat 200 is located on the upper side of the fixing seat 60; the sensing member is fixed in the second mounting seat 110 to realize the mounting and fixing between the sensing member and the first guide shaft 70; the sensor is fixed in the third mounting seat 200 to realize the mounting and fixing between the sensor and the cloth sticking base 20. The second mounting seat 110 can move up and down relative to the cloth sticking base 20 following the first guide shaft 70 with the compression deformation of the spring 90. In addition, the first mounting seat 80 and the cloth sticking wheel 50 are distributed on the lower side of the horizontal plate portion 61 of the fixing seat 60, and the second mounting seat 110 and the sensing member are distributed on the upper side of the horizontal plate portion 61 of the fixing seat 60.

[0071] Preferably, in the present application, the sensing element is two magnets arranged along the moving direction of the first guide shaft 70, the sensor is a linear Hall sensor, and the linear Hall sensor inside the third mounting seat 200 is directly opposite to the magnet inside the second mounting seat 110. By ensuring the distance between the linear Hall sensor and the magnet, the linear Hall sensor can output a linear signal according to the relative up-and-down movement of the magnet, thereby judging the compression amount of the spring 90 and finally determining the cloth sticking pressure applied by the cloth sticking wheel 50 to the surface layer cut piece through the tape. Specifically, the cloth sticking driving source 10 is a cylinder. In the initial state, the piston rod of the cloth sticking driving source 10 does not extend downward, and the cloth sticking base 20 is located at the uppermost end of its movement stroke. At this time, the magnet is below the linear Hall sensor, and the distance between the two in the up-and-down direction is relatively large, and the linear voltage value output by the linear Hall sensor is relatively small. When separating the cut piece, the piston rod of the cloth sticking driving source 10 extends downward, driving the cloth sticking base 20 to move downward. When the tape at the lower end of the cloth sticking wheel 50 adheres to the surface layer cut piece, as the piston rod of the cloth sticking driving source 10 continues to extend downward, the spring 90 is compressed, and the distance between the magnet and the linear Hall sensor gradually decreases, and the linear voltage value output by the linear Hall sensor continuously increases, and the cloth sticking pressure also continuously increases; when the linear voltage value output by the linear Hall sensor reaches the potential threshold set by the potentiometer, the electronic control module controls the solenoid valve of the cloth sticking cylinder to change direction, then the piston rod of the cloth sticking driving source 10 retracts upward, sticking up the surface layer cut piece to achieve the effect of cut piece separation. The cloth sticking pressure is measured by measuring the deformation amount of the spring 90 by the linear Hall sensor, and the cloth sticking pressure each time the tape at the lower end of the cloth sticking wheel 50 sticks the cloth is proportional to the deformation amount of the spring 90. The output signal of the linear Hall sensor is compared with the potential threshold set by the potentiometer. When the output signal of the linear Hall sensor reaches the potential threshold, the cloth sticking driving source 10 is immediately controlled to act in the reverse direction, thereby stably and reliably ensuring that the deformation amount of the spring 90 caused each time the cloth is stuck is the same, and stably and reliably ensuring that the cloth sticking pressure is consistent each time the cloth is stuck, thereby realizing the stable control of the cloth sticking pressure.

[0072] Furthermore, as Figure 4As shown, the cut piece separation device also includes a second guide shaft 130 parallel to the first guide shaft 70. The first guide shaft 70 is distributed at the middle position of the horizontal plate portion 61 of the fixed seat 60. There are two second guide shafts 130, which are symmetrically distributed on both sides of the first guide shaft 70. The second guide shaft 130 is installed in the horizontal plate portion 61 of the fixed seat 60 through a low-friction bushing so as to be movable up and down. The lower end of the second guide shaft 130 is fixed to the first mounting seat 80. The upper end of the second guide shaft 130 is fixed with a limit plate 140. The limit plate 140 is distributed on the upper side of the horizontal plate portion 61 of the fixed seat 60 and can abut against the horizontal plate portion 61 of the fixed seat 60. Firstly, the second guide shaft 130 can ensure that the fixed seat 60 and the first guide shaft 70 can move relative to each other smoothly during the bonding process, thereby ensuring the accuracy of controlling the stability of the bonding pressure through the output voltage value of the linear Hall sensor. Secondly, when the adhesive cloth base 20 moves upward, the first mounting seat 80 is moved downward and reset by the spring force of the spring 90 until the limiting plate 140 abuts against the upper end surface of the horizontal plate portion 61 of the fixing seat 60 .

[0073] Furthermore, if Figure 2 and Figure 3 As shown, the cut piece separation device also includes a glue collecting drive source 160 fixedly mounted on the cloth sticking base 20, and a tensioning rod 190 fixed on the cloth sticking base 20. The glue collecting drive source 160 is connected to the glue collecting tape wheel 40 through a transmission mechanism, and the glue collecting drive source 160 is also connected to the electronic control module for communication. When it is necessary to feed the tape, when the electronic control module sends an instruction to the glue collecting drive source 160, the glue collecting drive source 160 drives the glue collecting tape wheel 40 to rotate through the transmission mechanism, so that a section of tape is wound around the paper tube of the glue collecting tape wheel 40, and the tape roll 30 releases a section of new tape, thereby updating a section of tape at the lower end of the cloth sticking wheel 50 to achieve tape feeding. The tensioning rod 190 is distributed between the tape roll 30 and the cloth sticking wheel 50, and abuts against the tape to achieve the reversal and tensioning of the tape. The tape on the tape roll 30 passes through the tensioning rod 190 and the cloth sticking wheel 50 in turn and is wound around the glue collecting tape wheel 40. Preferably, as Figure 2 and Figure 3 As shown, the adhesive collecting driving source 160 is a motor, and the transmission mechanism includes a driving pulley 210, a driven pulley 220, and a transmission belt 230 sleeved on the outer periphery of the driving pulley 210 and the driven pulley 220. The driving pulley 210 is fixed on the motor shaft of the motor, and the driven pulley 220 is fixed on the wheel shaft of the adhesive tape collecting wheel 40. In addition, the adhesive collecting driving source 160, the adhesive tape roll 30, the tensioning rod 190, the adhesive cloth wheel 50 and the adhesive tape collecting wheel 40 are distributed on the front side of the adhesive cloth base 20, while the driving pulley 210, the driven pulley 220 and the transmission belt 230 are distributed on the back side of the adhesive cloth base 20.

[0074] Preferably, if Figure 4As shown, the piece separation device further includes a mounting shaft 150. The first mounting base 80 has two mounting arms 81 arranged axially opposite to each other along the adhesive cloth wheel 50. Both ends of the mounting shaft 150 are respectively fixed in the two mounting arms 81. The adhesive cloth wheel 50 is rotatably mounted on the mounting shaft 150 through a bearing inside it, enabling the adhesive cloth wheel 50 to freely rotate, reducing the resistance during the tape feeding process. Limit retaining rings are fixed at both ends of the mounting shaft 150, and the limit retaining rings abut against the mounting arms 81 of the first mounting base 80 to achieve the fixation and axial limitation of the mounting shaft 150.

[0075] Further, as Figures 2 to 4 shown, the piece separation device further includes a limit driving source 120. The limit driving source 120 is fixed on the third mounting base 200 through several screws, thereby fixedly installing the limit driving source 120 on the adhesive cloth base 20. The limit driving source 120 is distributed on the upper side of the first guiding shaft 70. The limit driving source 120 has a limit driving part 121 that can telescopically move up and down along the moving direction of the first guiding shaft 70. Based on this, the limit driving source 120 can be an electromagnet 122 or a cylinder. Figures 2 to 3 In the view shown, the limit driving source 120 is an electromagnet 122, and the iron core of the electromagnet 122 constitutes the limit driving part 121. The electromagnet 122 is in a normally de-energized state, and the iron core of the electromagnet 122 does not extend downward, so the iron core of the electromagnet 122 is far from the second mounting base 110 at the upper end of the first guiding shaft 70 and the two do not contact. The iron core of the electromagnet 122 does not limit the movement of the first guiding shaft 70 relative to the fixed base 60. When tape feeding is required and the tape at the lower end of the adhesive cloth wheel 50 needs to be updated, the adhesive cloth base 20 is in a lifted state. The electromagnet 122 is energized, and the iron core of the electromagnet 122 extends downward and abuts against the second mounting base 110 or has a very small distance. After that, the tape collecting driving source 160 rotates to update the tape at the adhesive cloth wheel 50. Since the iron core of the electromagnet 122 abuts against the upper end of the second mounting base 110, the second mounting base 110 and the first guiding shaft 70 cannot move upward, preventing the spring 90 from deforming, and also avoiding the adhesive cloth wheel 50 being slowly pulled up by the tape due to the pressure of the tape itself on the adhesive cloth wheel 50 each time the tape is updated, thereby ensuring the consistency of the adhesive cloth pressure after updating the tape with the initially set adhesive cloth pressure and eliminating the influence of the tape adhesion on the spring 90. After that, during each adhesive cloth process, the electromagnet 122 returns to the de-energized state, so that all the compressive deformation of the spring 90 is generated by the adhesive cloth pressure applied by the adhesive cloth wheel 50 to the surface pieces through the tape, improving the reliability and stability of the adhesive piece separation.

[0076] Preferably, the iron core of the electromagnet 122 faces the fixing screw for fixing the first guide shaft 70 and the second mounting seat 110. And when the electromagnet 122 is energized, there is a very small distance between the fully extended iron core of the electromagnet 122 and the fixing screw in the second mounting seat 110. This structure can ensure that the iron core of the electromagnet 122 can fully extend when it is in the energized state, providing sufficient thrust, effectively preventing the spring 90 from undergoing compressive deformation during the tape feeding process, resulting in the signal of the linear Hall sensor not being at the zero position and thus unable to achieve stable and accurate control of the cloth sticking pressure.

[0077] Further, as Figure 2 and Figure 3 shown, the cut piece separating device further includes a roller encoder 170 and a rotating shaft 240. The rotating shaft 240 is fixed in the cloth sticking base 20, and the roller encoder 170 is rotatably mounted on the rotating shaft 240, thereby mounting the roller encoder 170 on the cloth sticking base 20. The detection roller 171 of the roller encoder 170 is in contact and cooperation with the outer peripheral surface of the tape roll 30, and the roller encoder 170 is communicatively connected to the electronic control module. When it is necessary to feed the tape, the tape winding drive source 160 drives the tape winding wheel 40 to rotate through the transmission mechanism. Since the detection roller 171 of the roller encoder 170 is in contact with the outer peripheral surface of the tape roll 30, the rotation of the tape roll 30 drives the detection roller 171 to rotate, and the arc length passed by the detection roller 171 is the feeding amount of the tape on the tape roll 30; the electronic control module counts the pulses output by the encoder. When the number of pulses reaches the preset feeding pulses in the electronic control module, the electronic control module controls the tape winding drive source 160 to stop rotating, so as to achieve uniform and equal feeding amount of the tape each time, ensuring the constancy of the adhesive force of the tape at the lower end of the cloth sticking wheel 50. In addition, different feeding pulses can be set in the electronic control module according to different fabrics to provide different tape feeding amounts, meeting the different requirements for adhesive force when separating different fabrics and ensuring stable separation of different fabrics.

[0078] Preferably, as Figure 2 and Figure 3 shown, the cut piece separating device further includes a pressing torsion spring 180. The pressing torsion spring 180 is sleeved on the rotating shaft 240, and both ends of the pressing torsion spring 180 are respectively connected to the cloth sticking base 20 and the detection roller 171 of the roller encoder 170, applying a force towards the tape roll 30 to the detection roller 171 of the roller encoder 170, so that the detection roller 171 is pressed against the outer peripheral surface of the tape roll 30, and the two keep in contact during the tape feeding process.

[0079] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0080] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A method for controlling the pressure of the adhesive cloth, using a piece separation device, the piece separation device includes an adhesive cloth driving source (10), an adhesive cloth base (20), and a tape roll (30), a tape take-up wheel (40), and an adhesive cloth wheel (50) that are all rotatably installed on the adhesive cloth base (20). The adhesive cloth driving source (10) is connected to the adhesive cloth base (20) and drives the adhesive cloth base (20) to reciprocate. The tape on the tape roll (30) passes over the adhesive cloth wheel (50) and is connected to the tape take-up wheel (40). It is characterized in that: The sheet separating device further includes an electric control module, a fixed seat (60) fixed to the adhesive cloth base (20), a first guiding shaft (70) movably installed in the fixed seat (60), a first mounting seat (80) fixed to the end of the first guiding shaft (70), a spring (90) sleeved on the first guiding shaft (70), a sensing member, and a sensor. The first guiding shaft (70) axially extends along the moving direction of the adhesive cloth base (20). The adhesive cloth wheel (50) is rotatably installed in the first mounting seat (80). The two ends of the spring (90) respectively abut against the fixed seat (60) and the first mounting seat (80). The sensing member and the sensor are respectively fixedly installed on the first guiding shaft (70) and the adhesive cloth base (20). The sensor can sense the sensing member. The adhesive cloth driving source (10) and the sensor are both communicatively connected to the electric control module; The adhesive cloth pressure control method includes the following steps: S1. Preset a potential threshold in the electric control module; S2. The sheet separating device operates: The electric control module sends an instruction to the adhesive cloth driving source (10). The adhesive cloth driving source (10) drives the adhesive cloth base (20) to move until a section of the tape on the outer periphery of the adhesive cloth wheel (50) contacts the topmost surface sheet of a stack of sheets. The spring (90) is compressed, and the output signal of the sensor changes; When the electric control module determines that the output signal of the sensor reaches the potential threshold, the electric control module sends an instruction to the adhesive cloth driving source (10). The adhesive cloth driving source (10) drives the adhesive cloth base (20) to move in the reverse direction. A section of the tape on the outer periphery of the adhesive cloth wheel (50) picks up the surface sheet, realizing sheet separation; S3. Repeat step S2 until the sheet separation operation is completed; Each time when separating sheets, the output signal of the sensor, the compressive deformation of the spring (90), and the adhesive cloth pressure correspond one by one. Each time when the tape at the lower end of the adhesive cloth wheel (50) picks up the surface sheet, a stable adhesive cloth pressure can be maintained.

2. The cloth sticking pressure control method according to claim 1, wherein: The sheet separating device further includes a second mounting seat (110) fixed on the first guiding shaft (70). The sensing member is fixed in the second mounting seat (110). The fixed seat (60) has a horizontal plate portion (61) for supporting the first guiding shaft (70). The first mounting seat (80) and the second mounting seat (110) are distributed on both sides of the horizontal plate portion (61) along the moving direction of the first guiding shaft (70).

3. The cloth sticking pressure control method according to claim 1 or 2, characterized in that: The sensing member is a magnet, and the sensor is a linear Hall sensor.

4. The cloth sticking pressure control method according to claim 1 or 2, characterized in that: The sheet separating device further includes a limit driving source (120) installed on the adhesive cloth base (20). The limit driving source (120) has a limit driving portion (121) that can be telescoped along the moving direction of the first guiding shaft (70). The limit driving portion (121) is used to limit the first guiding shaft (70).

5. The cloth sticking pressure control method according to claim 1, characterized in that: The sheet separating device further includes a second guide shaft (130) parallel to the first guide shaft (70). The second guide shaft (130) is movably installed in the fixed seat (60). One end of the second guide shaft (130) is fixed to the first mounting seat (80), and a limit plate (140) is fixed to the other end of the second guide shaft (130). The limit plate (140) is distributed on the side of the fixed seat (60) facing away from the first mounting seat (80) and can abut against the fixed seat (60).

6. The cloth sticking pressure control method according to claim 1, characterized in that: The sheet separating device further includes a mounting shaft (150). The first mounting seat (80) has two mounting arms (81) arranged oppositely along the axial direction of the cloth sticking wheel (50). Both ends of the mounting shaft (150) are respectively fixed in the two mounting arms (81), and the cloth sticking wheel (50) is rotatably installed on the mounting shaft (150) through a bearing.

7. The cloth sticking pressure control method according to claim 1, characterized in that: The sheet separating device further includes a glue collecting driving source (160) and a roller encoder (170) both installed on the cloth sticking base (20). The glue collecting driving source (160) is in transmission connection with the glue collecting belt pulley (40) to drive the glue collecting belt pulley (40) to rotate. The detection roller (171) of the roller encoder (170) is in contact and cooperation with the outer peripheral surface of the tape roll (30). The glue collecting driving source (160) and the roller encoder (170) are both in communication connection with the electronic control module.

8. The cloth sticking pressure control method according to claim 7, wherein: The sheet separating device further includes a pressing torsion spring (180). Both ends of the pressing torsion spring (180) are respectively connected to the cloth sticking base (20) and the detection roller (171) of the roller encoder (170), and apply a force towards the tape roll (30) to the detection roller (171) of the roller encoder (170).

9. The cloth sticking pressure control method according to claim 1, characterized in that: The sheet separating device further includes a feeding platform located on the lower side of the cloth sticking wheel (50), and a soft rubber pad arranged on the upper end surface of the feeding platform. The soft rubber pad is used to support a stack of sheets.

10. The cloth sticking pressure control method according to claim 1, characterized in that: The sheet separating device further includes a tension rod (190) fixed to the cloth sticking base (20). The tension rod (190) is distributed between the tape roll (30) and the cloth sticking wheel (50) and abuts against the tape.

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