Anti-deviation glue dispenser for disposable combined bag production

Abstract

The invention belongs to the technical field of combined bag production, and particularly relates to an anti-deviation dispensing machine for disposable combined bag production, the anti-deviation dispensing machine comprises a workbench, a moving assembly and a dispensing head, the anti-deviation dispensing machine further comprises two fixed seats, the two fixed seats are fixedly arranged on the two sides of the top of the workbench respectively, and the moving assembly is arranged between the tops of the two fixed seats. Through the anti-deviation positioning mechanism, accurate anti-deviation positioning of the pipe body and the connector is achieved, the dispensing part is completely exposed, the motor and the rotating shaft are matched to drive the pipe body and the connector to rotate synchronously, and a basis is provided for circumferential dispensing of the dispensing head and deviation avoiding; meanwhile, through the viscosity detection mechanism, the viscosity of the adhesive can be monitored in real time, the adhesive discharging amount of the electric flow adjusting valve and the rotating speed of the motor can be adjusted in a self-adaptive mode, and uniform adhesive dispensing is guaranteed; in addition, through the air blowing curing mechanism, curing of the surface of the low-viscosity adhesive can be accelerated, the adhesive is prevented from sliding off, and the production stability, the product consistency and the bonding reliability are integrally improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of combination bag production, and particularly relates to a one-time combination bag production anti-deviation point glue machine. BACKGROUND

[0002] Medical one-time combination bags (such as one-time drainage bags, infusion bags, blood purification component bags and the like) have become indispensable consumables in clinical diagnosis and treatment due to the core advantages of "opening for use, sterile safety and avoiding cross infection", wherein a drainage tube component and a connecting tube component are key structures for realizing "closed transmission of body fluid / liquid medicine" in the combination bag, both of which are sealed and bonded by means of point glue solidification of a "tube body" and a "connecting head", and the connection quality directly determines the sealing property, flowability and use safety of the combination bag.

[0003] However, in the large-scale production process of the medical one-time combination bag, the tube body of the drainage tube component and the connecting tube component is mostly made of medical-grade flexible material (such as a silica gel tube, a PVC soft tube and a TPE tube), which is prone to bending when subjected to force, especially in the positioning link before point glue. The connecting head matched with the tube body is mostly a small precision component (such as a Luer connector, a pagoda connector and a quick plug connector), and when assembled with the tube body, the connecting head needs to keep strict coaxiality with the tube body to ensure that the glue line is evenly covered at the connecting position during point glue, but the traditional point glue tooling is difficult to accurately control the relative position of the connecting head and the tube body, and problems such as "eccentricity of the connecting head" and "insufficient insertion depth of the tube body" are prone to occur, which further causes the adhesive to be coated on the non-sealing area of the connecting head during point glue, forming "deviated glue line" and reducing the production quality.

[0004] Therefore, the application provides a one-time combination bag production anti-deviation point glue machine. SUMMARY

[0005] The application aims at the above problems and provides a one-time combination bag production anti-deviation point glue machine.

[0006] To achieve the above objective, the application adopts the following technical scheme: a one-time combination bag production anti-deviation point glue machine, comprising a workbench, a moving assembly and a point glue head, further comprising: two fixed seats, which are fixedly arranged on the top of the two sides of the workbench, the moving assembly is arranged between the top of the two fixed seats, a moving seat is slidably arranged on the moving assembly, and the point glue head is fixedly arranged on the side wall of the moving seat; an anti-deviation positioning mechanism arranged on the top of the workbench and used for positioning and mounting the tube body and the connecting head; a viscosity detection mechanism arranged on the outer wall of the point glue head, and an electric flow regulating valve is fixedly arranged on the outer wall of the lower end point glue pipe of the point glue head. A blowing and curing mechanism is arranged at the bottom of the moving seat, and the air outlet of the blowing and curing mechanism is arranged towards the lower end of the glue dispensing head, for blowing and curing the glue dispensing part; A PLC controller is fixedly arranged on the side wall of one of the fixed seats, and the moving assembly, the air cylinder, the anti-deviation positioning mechanism, the viscosity detection mechanism, the electric flow regulating valve and the blowing and curing mechanism are electrically connected with the PLC controller.

[0007] Preferably, a base plate is fixedly arranged on the top of the workbench, a support is fixedly arranged on one side of the upper surface of the base plate, and a motor is fixedly arranged on the side wall of the support.

[0008] Preferably, the anti-deviation positioning mechanism comprises a lower positioning plate fixedly arranged at one end of the rotating shaft, an upper positioning plate arranged on the upper surface of the lower positioning plate, and arc-shaped positioning grooves arranged on the opposite sides of the lower positioning plate and the upper positioning plate, and a sliding block fixedly arranged on each side of the upper positioning plate, a sliding rod arranged in the sliding block, and a first spring sleeved on the rod wall of the sliding rod, a resilient telescopic rod fixedly arranged on the lower surface of the lower positioning plate, and a positioning sleeve fixedly arranged at the end of the resilient telescopic rod away from the lower positioning plate.

[0009] Preferably, the resilient telescopic rod comprises a mounting seat fixedly arranged on the lower surface of the lower positioning plate, a sleeve fixedly arranged on the side wall of the mounting seat, an L-shaped moving rod arranged in the sleeve, a square connecting block fixedly arranged at one end of the L-shaped moving rod and slidably connected with the inner wall of the sleeve, a second spring fixedly arranged between the side wall of the square connecting block and the inner wall of the sleeve, and the other end of the L-shaped moving rod fixedly connected with the bottom of the positioning sleeve.

[0010] Preferably, the viscosity detection mechanism comprises two mounting brackets fixedly arranged on the outer wall of the glue dispensing pipe at the lower end of the glue dispensing head, a first pressure sensor and a second pressure sensor fixedly arranged in the two mounting brackets respectively, and the detection end of the first pressure sensor and the detection end of the second pressure sensor both extending into the interior of the glue dispensing head.

[0011] Preferably, the blowing and curing mechanism comprises two fixed rods fixedly arranged symmetrically at the bottom of the moving seat, and the same air bellow is fixedly arranged at the lower end of the two fixed rods, a blower is fixedly arranged on the upwardly inclined side of the air bellow, a plurality of blowing holes are arranged on the downwardly inclined side of the air bellow, and a heating pipe is fixedly arranged in the interior of the air bellow.

[0012] Preferably, an air cylinder is fixedly arranged on the side wall of the moving seat, an installation plate is fixedly arranged at the moving end of the air cylinder, and the glue dispensing head is fixedly arranged on the side of the installation plate.

[0013] Preferably, the moving assembly adopts an X-axis direction and a Y-axis direction assembly.

[0014] Compared with the prior art, the present application has the beneficial effects that: 1. By setting the anti-deviation positioning mechanism, the lower positioning plate and the upper positioning plate are matched with the outer shape of the pipe body through the arc-shaped positioning groove, and the elastic clamping force of the first spring can firmly fix the flexible pipe body and prevent it from deforming under stress, and can also prevent the pipe body from shifting in subsequent operations. At the same time, the combination of the elastic expansion rod and the positioning sleeve can ensure the precise butt joint of the connector and the pipe body and maintain the coaxiality through the pre-tightening force of the second spring, effectively solving the problem of deviation of the pipe body and the connector. In addition, the connection between the pipe body and the connector (the glue dispensing part) can be exposed and can rotate synchronously with the motor-driven shaft, so that the glue dispensing head can perform circumferential glue dispensing around the glue dispensing part, ensuring that the glue line uniformly covers the entire glue dispensing part and reducing the risk of glue dispensing deviation, laying a foundation for high-quality glue dispensing.

[0015] 2. By setting the viscosity detection mechanism, the first pressure sensor and the second pressure sensor detect the pressure values of the upstream and downstream of the glue dispensing pipe. When the viscosity decreases (the fluidity increases), the opening degree of the electric flow regulating valve is automatically reduced to reduce the glue discharge amount, and the motor rotation speed is reduced to avoid the accumulation and flow of the adhesive. When the viscosity increases (the fluidity decreases), the opening degree of the regulating valve is increased to increase the glue discharge amount, and the motor speed is increased to prevent local accumulation or leakage of the adhesive. The entire process can dynamically match the glue dispensing parameters without manual intervention, which can avoid glue dispensing defects caused by viscosity fluctuations, ensure uniform glue line thickness and reliable bonding, and improve production stability and product consistency.

[0016] 3. By setting the blowing and curing mechanism, when the viscosity detection mechanism determines that the viscosity of the adhesive decreases (the fluidity increases) and there is a risk of sliding, the PLC controller simultaneously starts the air blower and the heating pipe. The air blower sends external gas into the air tank, and the gas heated by the heating pipe is blown to the glue dispensing part through multiple blowing holes with soft air flow, which can accelerate the surface curing of the adhesive and quickly shape it to prevent the adhesive from sliding, and will not disturb the uncured glue layer due to excessive wind force, solving the problem of flow of low-viscosity adhesive and further improving the glue dispensing quality and production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front perspective view of a one-time combination bag production anti-deviation glue dispensing machine provided by the present application; Figure 2 is a back perspective view of a one-time combination bag production anti-deviation glue dispensing machine provided by the present application; Figure 3 is a perspective view of a one-time combination bag production anti-deviation glue dispensing machine moving assembly and its moving seat provided by the present application; Figure 4 is a perspective view of a one-time offset prevention positioning mechanism of a one-time offset prevention dispensing machine for producing a combination package provided by the present application; Figure 5 is a perspective view of an elastic telescopic rod of a one-time offset prevention dispensing machine for producing a combination package provided by the present application; Figure 6 is a perspective view of a viscosity detection mechanism of a one-time offset prevention dispensing machine for producing a combination package provided by the present application; Figure 7 is a perspective view of a blowing and curing mechanism of a one-time offset prevention dispensing machine for producing a combination package provided by the present application.

[0018] In the figure: 1 workbench, 2 moving assembly, 3 dispensing head, 4 fixed seat, 5 moving seat, 6 offset prevention positioning mechanism, 61 lower positioning plate, 62 upper positioning plate, 63 arc-shaped positioning groove, 64 sliding block, 65 sliding rod, 66 first spring, 67 elastic telescopic rod, 671 mounting seat, 672 sleeve, 673 L-shaped moving rod, 674 square connecting block, 675 second spring, 68 positioning sleeve, 7 viscosity detection mechanism, 71 mounting frame, 72 first pressure sensor, 73 second pressure sensor, 8 electric flow regulating valve, 9 blowing and curing mechanism, 91 fixed rod, 92 air bellow, 93 blower, 94 blowing hole, 95 heating pipe, 10 PLC controller, 11 base plate, 12 support, 13 motor, 14 rotating shaft, 15 air cylinder, 16 mounting plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0020] As shown in Figures 1-7 , a one-time offset prevention dispensing machine for producing a combination package comprises a workbench 1, a moving assembly 2 and a dispensing head 3, and further comprises: Two fixed seats 4 are fixedly arranged on the top of the two sides of the workbench 1, and the moving assembly 2 is arranged between the top of the two fixed seats 4. A moving seat 5 is slidably arranged on the moving assembly 2. The moving assembly 2 is an assembly in X-axis direction and Y-axis direction, and can control the position movement of the moving seat 5 in X-axis direction and Y-axis direction. The dispensing head 3 is fixedly arranged on the side wall of the moving seat 5. The side wall of the moving seat 5 is fixedly provided with an air cylinder 15. The moving end of the air cylinder 15 is fixedly provided with a mounting plate 16. The dispensing head 3 is fixedly arranged on the side of the mounting plate 16. When the air cylinder 15 is moved, the mounting plate 16 can be moved downward or upward, so that the use height of the dispensing head 3 can be adjusted.

[0021] The anti-deviation positioning mechanism 6 is arranged on the top of the workbench 1, and is used for positioning and mounting the pipe body and the joint. The top of the workbench 1 is fixedly provided with a base plate 11. One side of the upper surface of the base plate 11 is fixedly provided with a support 12. The side wall of the support 12 is fixedly provided with a motor 13. The output end of the motor 13 is fixedly provided with a rotating shaft 14. The motor 13 is a servo motor, and can drive the rotating shaft 14 to rotate in opposite directions. The anti-deviation positioning mechanism 6 comprises a lower positioning plate 61 fixedly arranged at one end of the rotating shaft 14. The upper surface of the lower positioning plate 61 is provided with an upper positioning plate 62. The opposite sides of the lower positioning plate 61 and the upper positioning plate 62 are both provided with arc-shaped positioning grooves 63. The profiles of the arc-shaped positioning grooves 63 are matched with the outer wall of the pipe body. The two sides of the upper positioning plate 62 are both fixedly provided with sliding blocks 64. The inner part of each sliding block 64 is provided with a sliding rod 65. The lower end of each sliding rod 65 is fixedly connected with the upper surface of the lower positioning plate 61. The rod wall of each sliding rod 65 is sleeved with a first spring 66. The lower surface of the lower positioning plate 61 is fixedly provided with an elastic telescopic rod 67. One end of the elastic telescopic rod 67 away from the lower positioning plate 61 is fixedly provided with a positioning sleeve 68. The elastic telescopic rod 67 comprises a mounting seat 671 fixedly arranged on the lower surface of the lower positioning plate 61. The side wall of the mounting seat 671 is fixedly provided with a sleeve 672. The inner part of the sleeve 672 is provided with an L-shaped moving rod 673. One end of the L-shaped moving rod 673 is fixedly provided with a square connecting block 674. The square connecting block 674 is in sliding connection with the inner wall of the sleeve 672. The square structure can avoid the square connecting block 674 from rotating in the inner part of the sleeve 672, and improves the stability of movement. The second spring 675 is fixedly arranged between the side wall of the square connecting block 674 and the inner wall of the sleeve 672. The other end of the L-shaped moving rod 673 is fixedly connected with the bottom of the positioning sleeve 68.

[0022] The viscosity detection mechanism 7 is arranged on the outer wall of the glue dispensing head 3. The lower end of the glue dispensing head 3 is fixedly provided with an electric flow regulating valve 8. The electric flow regulating valve 8 is an electric diaphragm valve. The viscosity detection mechanism 7 comprises two mounting frames 71 fixedly arranged on the outer wall of the glue dispensing pipe at the lower end of the glue dispensing head 3. The inner part of each mounting frame 71 is fixedly provided with a first pressure sensor 72 and a second pressure sensor 73. The detection end of the first pressure sensor 72 and the detection end of the second pressure sensor 73 are both extended to the inner part of the glue dispensing head 3. During the process that the adhesive is transported to the glue dispensing area through the glue dispensing pipe at the lower end of the glue dispensing head 3, the first pressure sensor 72 and the second pressure sensor 73 can respectively detect the pressure values of the adhesive at the upstream and the downstream in real time. The two groups of pressure values are compared and analyzed in real time, so as to judge the viscosity state of the current adhesive.

[0023] The blowing and curing mechanism 9 is arranged at the bottom of the moving seat 5, and the air outlet of the blowing and curing mechanism 9 is arranged towards the lower end of the glue dispensing head 3, for blowing and curing the glue dispensing part; the blowing and curing mechanism 9 comprises two fixed rods 91 symmetrically and fixedly arranged at the bottom of the moving seat 5, the lower end of the two fixed rods 91 is obliquely fixed with a same air bellow 92, the air bellow 92 is fixed with a blower 93 on the obliquely upward side, the blower 93 is a dustproof blower, which can reduce dust blowing to the glue dispensing part, a plurality of blowing holes 94 are arranged on the obliquely downward side of the air bellow 92, a plurality of heating pipes 95 are fixedly arranged in the air bellow 92, the blower 93 and the heating pipes 95 are started, when the blower 93 works, external gas is smoothly sucked into the air bellow 92, the heating pipes 95 in the air bellow 92 heat the gas, and the heated gas is blown to the glue dispensing part at the lower end of the glue dispensing head 3 in the form of uniformly dispersed gas flow through the plurality of small blowing holes 94 at the bottom of the air bellow 92.

[0024] The PLC controller 10 is fixedly arranged on the side wall of one of the fixed seats 4, and the moving assembly 2, the air cylinder 15, the anti-deviation positioning mechanism 6, the viscosity detection mechanism 7, the electric flow regulating valve 8 and the blowing and curing mechanism 9 are electrically connected with the PLC controller 10.

[0025] The operation principle of the application is described as follows: the worker first pulls the upper positioning plate 62 upward by hand, since the upper positioning plate 62 is fixedly connected with the sliding blocks 64 on both sides, and the sliding blocks 64 are movably sleeved on the sliding rods 65, with the hand force, the sliding blocks 64 move upward along the sliding rods 65, the upper positioning plate 62 is synchronously lifted, the distance between the upper positioning plate 62 and the lower positioning plate 61 gradually increases, until the distance is enough to accommodate the pipe to be positioned, then the worker puts the pipe into the arc-shaped positioning groove 63 on the surface of the lower positioning plate 61, the profile of the arc-shaped positioning groove 63 is matched with the outer wall of the pipe, which can preliminarily limit the transverse displacement of the pipe, and ensure that the pipe does not roll randomly after being placed, after the pipe is placed, the worker releases the external force on the upper positioning plate 62, at this time, the first spring 66 sleeved on the sliding rod 65 stores elastic potential energy due to the previous stretching, and pulls the sliding block 64 to reset downward along the sliding rod 65 under the action of the elastic force, the sliding block 64 drives the upper positioning plate 62 to synchronously move downward, until the arc-shaped positioning groove 63 at the bottom of the upper positioning plate 62 is tightly fitted with the top of the pipe, and forms a stable clamping force on the pipe, since the clamping is elastic, the pipe is not deformed, which lays a foundation for the butt joint of the connector. Next, the worker pulls the positioning sleeve 68 outward with the hand, and the L-shaped moving rod 673 fixedly connected at the bottom of the positioning sleeve 68 will be pulled, the other end of the L-shaped moving rod 673 is arranged in the sleeve 672, and is moved outward along the axis of the sleeve 672 under the action of the pulling force, and the second spring 675 in the sleeve 672 is stretched, when the positioning sleeve 68 is pulled to the appropriate position, the worker inserts one end of the connector into the positioning sleeve 68, the side wall of the positioning sleeve 68 is provided with a positioning hole matched with the structure of the connector, after the connector is inserted, the positioning hole can clamp and limit the connector to prevent the connector from falling off in the positioning sleeve 68, and at the same time, it is ensured that the other end of the connector is accurately aligned with one end of the clamped pipe body and is inserted and matched, to ensure that the connection part of the two is aligned with the target area of the subsequent dispensing, after the insertion is completed, the worker releases the external force of the hand on the positioning sleeve 68, the second spring 675 in the sleeve 672 is released, a pulling force in the direction of the pipe body is generated, the L-shaped moving rod 673 is pulled to reset along the axis of the sleeve 672, the L-shaped moving rod 673 drives the positioning sleeve 68 at the end to move synchronously in the direction of the pipe body, the positioning sleeve 68 drives the connector to always maintain the inserted state with the pipe body, and a stable pre-tightening force is applied to the connector, so that the connection part of the pipe body and the connector always maintains accurate alignment, effectively avoids deviation of the two due to external interference in the subsequent dispensing process, and provides a reliable positioning basis for the subsequent accurate dispensing operation; After the accurate positioning and installation of the pipe body and the connector are completed, the worker starts the preset dispensing preparation program by manually operating the PLC controller 10, the program synchronously activates the moving assembly 2 and the air cylinder 15, to ensure that the dispensing head 3 can accurately move to the target dispensing area, wherein the moving seat 5 on the moving assembly 2 can stably move in the X-axis and Y-axis directions under the preset track control of the PLC controller 10, to gradually adjust the horizontal position of the dispensing head 3, and simultaneously, the air cylinder 15 is lowered after receiving the instruction, to drive the mounting plate 16 fixed at the end to move downward synchronously, and the dispensing head 3 on the surface of the mounting plate 16 moves downward, until the dispensing head 3 accurately stops above the connection part of the pipe body and the connector, i.e., the preset dispensing area, so that the dispensing preparation work is completed; Subsequently, the staff starts the dispensing operation process through the PLC controller 10, which synchronously activates the glue supply system and the motor 13 of the dispensing head 3. The glue supply system is electrically connected with the PLC controller 10 and can receive and execute control instructions in real time. The core of the glue supply system consists of a glue storage tank, a glue supply pump and a conveying pipeline. The glue storage tank is used to store the adhesive to be used. The glue supply pump is responsible for conveying the adhesive after pressurization to the conveying pipeline, and finally the adhesive is conveyed to the connection between the pipe body and the connector through the dispensing pipe at the lower end of the dispensing head 3. When the motor 13 operates, it can drive the rotating shaft 14 to rotate at a constant speed. The upper positioning plate 62 and the lower positioning plate 61 that have previously positioned the pipe body, and the positioning sleeve 68 that has previously fixed the connector, are all fixedly connected with the rotating shaft 14. Therefore, when the rotating shaft 14 rotates, it will synchronously drive the pipe body and the connector to rotate along their own axes. With the slow rotation of the pipe body and the connector, the adhesive continuously output by the dispensing head 3 will evenly cover the annular connection between the two, gradually completing the circumferential dispensing of the entire connection, ensuring that the glue line is complete and the thickness is consistent. It should be emphasized that during the dispensing process, the elastic telescopic rod 67 on the device rotates synchronously with the overall structure. When the elastic telescopic rod 67 rotates to the upper position, it will temporarily block part of the dispensing area of the pipe body and the connector. However, since the diameter of the elastic telescopic rod 67 is small, the area blocked is limited. Moreover, under the dual action of gravity and the rotation of the pipe body and the connector, the adhesive will naturally cover the temporarily blocked part, and there will be no missing of the adhesive. At the same time, the PLC controller 10 has set the rotation logic of the motor 13 through pre-programming, which clearly controls the dispensing range of the dispensing head 3. Taking one side of the elastic telescopic rod 67 as the starting point of dispensing, as the elastic telescopic rod 67 rotates, when the dispensing head 3 is located at the other side of the elastic telescopic rod 67, the PLC controller 10 automatically instructs the dispensing head 3 to stop dispensing. In this way, it ensures that the dispensing range accurately covers the entire connection, avoiding the adhesive exceeding the target area or appearing locally missing. When the dispensing operation is in progress, the first pressure sensor 72 and the second pressure sensor 73 arranged on the pipeline of the dispensing head 3 will respectively detect the pressure values of the adhesive at the upstream and downstream in real time. The first pressure sensor 72 and the second pressure sensor 73 will synchronously transmit the continuously collected pressure signals to the PLC controller 10, which will compare and analyze the two sets of pressure values in real time to determine the viscosity state of the adhesive. If the PLC controller 10 detects that the pressure values of the first pressure sensor 72 and the second pressure sensor 73 are relatively small, it indicates that the adhesive flows smoothly and stably in the pipeline, and its viscosity is within the qualified range. Therefore, there is no need to adjust the dispensing parameters, and the device can continue to operate in the current state. When the pressure value of the first pressure sensor 72 is less than the pressure value of the second pressure sensor 73 and the difference reaches a certain range, the PLC controller 10 determines that the viscosity of the adhesive decreases (the fluidity increases), at this time, the PLC controller 10 will immediately control the valve core of the electric flow regulating valve 8 and reduce the opening degree, reduce the discharge amount of the adhesive per unit time, avoid the accumulation or flow of the adhesive in the dispensing area due to too strong fluidity, at the same time, the PLC controller 10 synchronously reduces the rotation speed of the motor 13, slows down the rotation rhythm of the pipe body and the connector, matches the rotation speed with the flow characteristics of the low-viscosity adhesive, ensures that the adhesive has sufficient time to adhere and preliminarily set on the surface of the dispensing part, prevents the adhesive from being "thrown off" from the target area due to too fast rotation, and ensures that the glue line is uniformly covered and no obvious accumulation; On the contrary, if the pressure value of the first pressure sensor 72 is greater than the pressure value of the second pressure sensor 73 and the difference reaches a certain range, the PLC controller 10 determines that the viscosity of the adhesive increases (the fluidity decreases), at this time, the PLC controller 10 will control the valve core of the electric flow regulating valve 8 and increase the opening degree, increase the discharge amount of the adhesive by expanding the pipeline channel, make up for the insufficient glue amount problem caused by high viscosity and poor fluidity, at the same time, improve the rotation speed of the motor 13, speed up the rotation rhythm of the pipe body and the connector, match the rotation speed with the adhesion characteristics of the high-viscosity adhesive, avoid excessive accumulation of the adhesive in the same position to form a tumor due to too slow rotation, ensure that the glue line thickness is uniform and can quickly cover the entire dispensing part, and prevent local missed coating due to poor fluidity; During the dispensing process, if the PLC controller 10 monitors that the pressure difference between the first pressure sensor 72 and the second pressure sensor 73 is abnormally large and exceeds the preset normal fluctuation range, it is determined that the viscosity of the adhesive has failed. Such an abnormal pressure difference usually means that the adhesive may have serious component separation, abnormal solidification or impurity blockage, etc., which cannot meet the normal dispensing requirements. At this time, the PLC controller 10 will immediately close the electric flow regulating valve 8, cut off the delivery channel of the adhesive, and stop the dispensing operation in an emergency, to avoid the continued output of the failed adhesive causing serious defects in the dispensing area. At the same time, the PLC controller 10 will trigger the alarm module carried by itself, send a clear signal to the on-site workers, and directly remind the operator that the current adhesive has failed and needs to be handled in time; When the PLC controller 10 monitors that the viscosity of the adhesive decreases (the fluidity increases), the air blower 93 and the heating pipe 95 are simultaneously started, the air blower 93 works to smoothly suck external gas and discharge it into the air bellow 92, and the heating pipe 95 in the air bellow 92 heats the gas, the heating temperature is set to be slightly higher than the surface solidification temperature of the adhesive (for example, the heating temperature of the two-component epoxy adhesive is 60-70 DEG C), and the heated gas is blown to the dispensing part at the lower end of the dispensing head 3 in the form of uniformly dispersed gas flow through the multiple small air blowing holes 94 at the bottom of the air bellow 92, the heated gas flow can quickly take away the moisture on the surface of the adhesive or promote the chemical reaction thereof, accelerate the surface solidification of the adhesive in the dispensing part, effectively avoid the adhesive from sliding or flowing to the non-target area due to the too large fluidity, and the air power of the air blower 93 is kept at a low level, so that the heated gas acts on the dispensing part in a soft state, which does not disturb the not completely solidified glue layer and does not affect the integrity of the glue line; When the viscosity of the adhesive increases (the fluidity decreases), the adhesive itself has weak fluidity, can be stably attached to the dispensing part after dispensing, and therefore does not need to start the heating air blowing device, and can be solidified by relying on the natural environment and without the adhesive sliding; After the dispensing operation is completed, the staff sends an end instruction through the PLC controller 10, the dispensing head 3 immediately stops dispensing, and is automatically returned to the initial standby position under the driving of the moving assembly 2 and the air cylinder 15, the PLC controller 10 controls the motor 13 to stop rotating, so that the pipe body and the connecting head remain in a stationary state, at this time, the staff can manually pull the upper positioning plate 62 upwards to make the pipe body separate from the constraint of the arc-shaped positioning groove 63, pull the positioning sleeve 68 outward to make the connecting head separate from the positioning hole, and then take out the pipe body and the connecting head as a whole.

[0026] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A one-time offset-preventing dispensing machine for producing a combination bag, comprising a workbench (1), a moving assembly (2) and a dispensing head (3), characterized in that, Also include: Two fixed seat (4) are fixed respectively in the top of the workbench (1) both sides, the moving assembly (2) is arranged between the top of two fixed seat (4), the moving assembly (2) is arranged on the moving seat (5), the point head (3) is fixed on the side wall of the moving seat (5); Anti-offset positioning mechanism (6) is arranged on the top of the workbench (1), and the anti-offset positioning mechanism (6) is used for positioning and installing the pipe body and the joint; Viscosity detection mechanism (7) is arranged on the outer wall of the point head (3), and the lower end of the point head (3) is fixed with an electric flow regulating valve (8) on the outer wall of the point head (3); Blowing curing mechanism (9) is arranged at the bottom of the moving seat (5), and the air outlet of the blowing curing mechanism (9) is arranged towards the lower end of the point head (3), which is used for blowing and curing the point head (3). PLC controller (10) is fixed on the side wall of one of the fixed seat (4), and the moving assembly (2), cylinder (15), anti-offset positioning mechanism (6), viscosity detection mechanism (7), electric flow regulating valve (8) and blowing curing mechanism (9) are electrically connected with the PLC controller (10).

2. The anti-deviation point glue machine for producing disposable combination bags according to claim 1, characterized in that, The workbench (1) is fixed with a base plate (11) on the top, a support (12) is fixed on one side of the upper surface of the base plate (11), a motor (13) is fixed on the side wall of the support (12), and an output end of the motor (13) is fixed with a rotating shaft (14).

3. The anti-deviation point glue machine for producing disposable combination bags according to claim 2, characterized in that, The anti-offset positioning mechanism (6) comprises a lower positioning plate (61) fixed on one end of the rotating shaft (14), an upper positioning plate (62) is arranged on the upper surface of the lower positioning plate (61), arc-shaped positioning grooves (63) are arranged on the opposite sides of the lower positioning plate (61) and the upper positioning plate (62), sliding blocks (64) are fixed on the two sides of the upper positioning plate (62), sliding rods (65) are arranged in the sliding blocks (64), the lower ends of the sliding rods (65) are fixedly connected with the upper surface of the lower positioning plate (61), first springs (66) are sleeved on the rod walls of the sliding rods (65), elastic telescopic rods (67) are fixedly arranged on the lower surface of the lower positioning plate (61), and positioning sleeves (68) are fixedly arranged on the ends of the elastic telescopic rods (67) away from the lower positioning plate (61).

4. The anti-deviation point glue machine for producing disposable combination bags according to claim 3, characterized in that, The elastic telescopic rod (67) comprises a mounting seat (671) fixed on the lower surface of the lower positioning plate (61), a sleeve (672) is fixed on the side wall of the mounting seat (671), an L-shaped moving rod (673) is arranged in the sleeve (672), a square connecting block (674) is fixed on one end of the L-shaped moving rod (673), the square connecting block (674) is slidably connected with the inner wall of the sleeve (672), a second spring (675) is fixed between the side wall of the square connecting block (674) and the inner wall of the sleeve (672), and the other end of the L-shaped moving rod (673) is fixedly connected with the bottom of the positioning sleeve (68).

5. The anti-deviation point glue machine for producing disposable combination bags according to claim 1, characterized in that, The viscosity detection mechanism (7) comprises two mounting racks (71) fixedly arranged on the outer wall of the glue dispensing pipe at the lower end of the glue dispensing head (3), the inner part of each of the two mounting racks (71) is fixedly provided with a first pressure sensor (72) and a second pressure sensor (73), and the detection end of the first pressure sensor (72) and the detection end of the second pressure sensor (73) extend into the interior of the glue dispensing head (3).

6. The anti-deviation point glue machine for producing disposable combination bags according to claim 1, characterized in that, The blowing curing mechanism (9) comprises two fixed rods (91) fixedly arranged symmetrically at the bottom of the moving seat (5), the lower end of each of the two fixed rods (91) is fixedly provided with a same air bellow (92), the upwardly inclined side of the air bellow (92) is fixedly provided with a blower (93), the downwardly inclined side of the air bellow (92) is provided with a plurality of blowing holes (94) arranged uniformly, and the interior of the air bellow (92) is fixedly provided with a heating pipe (95).

7. The anti-deviation point glue machine for producing disposable combination bags according to claim 1, characterized in that, The side wall of the moving seat (5) is fixedly provided with a pneumatic cylinder (15), the moving end of the pneumatic cylinder (15) is fixedly provided with a mounting plate (16), and the glue dispensing head (3) is fixedly mounted on the side of the mounting plate (16).

8. The anti-deviation point glue machine for producing disposable combination bags according to claim 1, characterized in that, The moving assembly (2) adopts an assembly in the X-axis direction and the Y-axis direction.

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