Automatic membrane sealing system of dialyzer

Abstract

The utility model provides an automatic membrane sealing system for dialyzers. The automatic membrane sealing system comprises a left grabbing mechanism of a dialyzer grabbing device, the left grabbing mechanism is used for grabbing dialyzers without membrane sealing from a transmission line to a dialyzer transferring device, and the right grabbing mechanism is used for grabbing dialyzers with membrane sealing from the dialyzer transferring device to the next transmission line; the dialyzer transferring device is located between the left grabbing mechanism and the right grabbing mechanism and comprises a transferring air cylinder and a dialyzer clamping mechanism installed on the transferring air cylinder. The membrane bundle membrane sealing device adopts a pair of membrane sealing units with the same structure to be oppositely arranged on the left side and the right side of the dialyzer transferring device; the two sets of film bundle cooling devices are distributed on the front side and the rear side of the film bundle film sealing device. According to the utility model, the high-quality film bundle sealing end surface can be realized, the serial operation of film bundle sealing and film bundle cooling is changed into parallel operation, the occupied area of equipment is reduced, the production efficiency is improved, and the production cost is further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of dialyzer production, and particularly relates to an automatic film sealing system for a dialyzer. Background Art

[0002] At present, in the technical field of dialyzer production, the quality of the film sealing of the dialyzer membrane bundle directly affects the product quality of the dialyzer. There are many film sealing technologies for the membrane bundle, which can generally be divided into contact type and non-contact type. For the contact type, materials such as aluminum foil are used. After the aluminum foil is used, it cannot be reused, which increases the aluminum foil consumables and causes an increase in product cost. The non-contact film sealing is connected in series on the transmission line, and a structure is directly installed below the transmission line. After the transmission line stops, it is clamped and lifted and then heated for film sealing. The disadvantage of this method is that heating and cooling are at the same position, and parallel processing cannot be achieved. The time for producing a single product is long. As a result, to produce products with the same output, only by adding the same equipment can the production capacity be improved, which causes a large floor area of the equipment and a high input cost. Summary of the Utility Model

[0003] In order to solve the above problems, the utility model provides an automatic film sealing system for a dialyzer, aiming to shorten the time and improve the production efficiency while ensuring high-quality automatic film sealing.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An automatic film sealing system for a dialyzer includes the following:

[0006] A dialyzer grasping device, including a left grasping mechanism and a right grasping mechanism. The left grasping mechanism is used to grasp the non-film-sealed dialyzer from the transmission line to the dialyzer transfer device, and the right grasping mechanism is used to grasp the film-sealed dialyzer from the dialyzer transfer device to the next transmission line;

[0007] A dialyzer transfer device, located between the left grasping mechanism and the right grasping mechanism, which includes a transfer cylinder and a dialyzer clamping mechanism installed on the transfer cylinder. The dialyzer clamping mechanism uses at least two clamping modules with the same structure;

[0008] A membrane bundle film sealing device, with a pair of film sealing units with the same structure arranged oppositely on the left and right sides of the dialyzer transfer device. The position where the membrane bundle film sealing device is located is used as the film sealing position. Each film sealing unit respectively includes a motion mechanism, a film sealing mechanism and a heat insulation mechanism. Among them, the motion mechanism is arranged perpendicular to the dialyzer transfer device, the film sealing mechanism is installed at the end of the motion mechanism and faces the dialyzer transfer device, and the heat insulation mechanism is installed at the front end of the film sealing mechanism and is in contact with the end face of the dialyzer;

[0009] The membrane bundle cooling device is used in two sets and is distributed on the front and rear sides of the membrane bundle film sealing device. The positions of the two sets of membrane bundle cooling devices are recorded as the first cooling position and the second cooling position, and they have both cooling and loading / unloading functions.

[0010] Preferably, it further includes a membrane bundle visual inspection device, which is arranged at the cooling position and corresponds to the position of the membrane bundle cooling device; the membrane bundle visual inspection device includes a top visual inspection mechanism and an on-line visual inspection mechanism. Among them, the top visual inspection mechanism is installed at the top of the membrane bundle film sealing position to detect the length of the membrane bundle film sealing and feedback the length of the membrane bundle film sealing to the membrane bundle film sealing device, and the on-line visual inspection mechanism is installed at the left and right ends of the membrane bundle cooling position to detect the quality of the two side end faces of the membrane bundle after film sealing.

[0011] Preferably, a stop module is installed in the middle of the transfer cylinder. During normal production, the stop module is in the working state, and the transfer cylinder drives two dialyzer clamping mechanisms to reciprocate on one side of the stop module and reciprocate between the first cooling position - film sealing position - second cooling position; during maintenance, the stop module is in the closed state, and the transfer cylinder drives two dialyzer clamping mechanisms to move to the detection position on the other side of the stop module and wait for maintenance.

[0012] Preferably, the left grasping mechanism and the right grasping mechanism have the same structure, and each includes a horizontally arranged moving electric cylinder, the moving electric cylinder is connected to a vertical pneumatic slide, and a detachable left and right clamping block is installed at the bottom end of the vertical pneumatic slide through a clamping jaw cylinder.

[0013] Preferably, the clamping module includes a pneumatic clamping jaw, a V-shaped cushion block, crescent-shaped left and right clamping blocks, and left and right clamping semi-circular pieces for the membrane bundle. Among them, the pneumatic clamping jaw is installed at the bottom of the mounting base plate, two groups of crescent-shaped left and right clamping blocks and left and right clamping semi-circular pieces for the membrane bundle are respectively installed on the left and right sides of the mounting base plate, and the clamping of the product is realized by the opening and closing movement of the pneumatic clamping jaw. Two V-shaped cushion blocks are installed above the mounting base plate, and the two V-shaped cushion blocks are located inside the two groups of crescent-shaped left and right clamping blocks and left and right clamping semi-circular pieces for the membrane bundle.

[0014] Preferably, in the membrane bundle film sealing device, the motion mechanism includes a pneumatic slide and a toothed electric cylinder arranged in the same direction, and the toothed electric cylinder is installed on the pneumatic slide; the film sealing mechanism includes a heat source and a temperature transmitter, and the heat source is controlled within a certain temperature range through the temperature transmitter; the heat insulation mechanism drives the heat insulation plate to rotate through a swing cylinder to cut off the heat conduction between the film sealing mechanism and the membrane bundle.

[0015] An automatic dialyzer film sealing method using the described automatic dialyzer film sealing system includes the following steps:

[0016] S1: The transfer cylinder carries the dialyzer clamping mechanism and moves between the left grasping mechanism and the right grasping mechanism. In the initial state, feeding is performed at the first cooling position. The left grasping mechanism grasps an unpacked dialyzer onto the first clamping module on the dialyzer clamping mechanism. The dialyzer is clamped, and the top vision detection mechanism at the first cooling position detects the membrane bundle length of the unpacked dialyzer and feeds it back to the membrane bundle sealing device;

[0017] S2: The transfer cylinder carries the dialyzer clamping mechanism forward so that the first clamping module reaches the sealing position. At the same time, the second clamping module will reach the first cooling position. Then, the left grasping mechanism grabs the next unpacked dialyzer onto the second clamping module on the dialyzer clamping mechanism, and the dialyzer is clamped; the first clamping module performs the sealing work at the sealing position, the heat insulation mechanism opens, and the motion mechanism drives the sealing mechanism forward. Among them, the toothed electric cylinder drives the sealing mechanism to advance at a slow speed. At the same time, the temperature transmitter controls the heat source within a certain temperature range; the second clamping module is at the first cooling position, and the top vision detection mechanism detects the membrane bundle length of the unpacked dialyzer and feeds it back to the membrane bundle sealing device;

[0018] S3: The transfer cylinder carries the dialyzer clamping mechanism to continue moving forward so that the second clamping module reaches the sealing position and performs the same sealing work as in S2. At the same time, the first clamping module will reach the second cooling position for cooling. After cooling, the online vision detection mechanism detects the quality of the sealed end face; after the detection is completed, the right grasping mechanism grabs the sealed dialyzer from the dialyzer transfer device to the next transmission line; immediately afterwards, the left grasping mechanism grabs the next unpacked dialyzer onto the first clamping module on the dialyzer clamping mechanism to complete the feeding work;

[0019] S4: After the dialyzer on the second clamping module in step S3 is sealed, the transfer cylinder carries the dialyzer clamping mechanism backward so that the second clamping module and the sealed dialyzer move to the first cooling position together for cooling work. After cooling, repeat the same detection, discharging, and feeding work as in S3; at the same time, the first clamping module carries the unpacked dialyzer grabbed by the left grasping mechanism to the sealing position and repeats the same sealing work as in S2;

[0020] S5: Repeat S2 to S4 until all dialyzers are sealed.

[0021] Advantages of the present utility model:

[0022] 1. The dialyzer grasping device includes a left grasping mechanism and a right grasping mechanism. The left grasping mechanism is only responsible for feeding, and the right grasping mechanism is only responsible for discharging, without mutual interference, shortening the time;

[0023] 2. Separate the film bundle sealing work and the film bundle cooling work, changing from the traditional serial work to parallel work, which greatly shortens the time for producing a single product by half and improves the production capacity. Specifically, adopting the traditional serial work mode, the time T1 from the film bundle being unsealed to being completely sealed for a single dialyzer is T 封膜时间 +T 冷却时间 +T 上料 +T 下料 ; adopting the parallel work mode of the present utility model, the time T2 from the film bundle being unsealed to being completely sealed for a single dialyzer is T 封膜时间 = 2T1, and the production efficiency is twice that of the serial work;

[0024] 3. The film bundle vision detection device detects and feeds back the film bundle sealing length, and on-line detects the end face quality of the film bundle after sealing; the film bundle sealing device controls the movement distance of the heater with high precision according to the sealing length fed back by the film bundle vision detection device to complete the film bundle sealing, and the moving distance of the film bundle sealing changes from the specified distance to the vision feedback distance;

[0025] 4. The dialyzer transfer device separates the working position and the maintenance position by setting a stop module, making the maintenance position away from the heat source and improving the safety performance of the equipment.

[0026] In summary, the present utility model can achieve a high-quality film bundle sealing end face without adding additional consumables, and at the same time change the film bundle sealing and film bundle cooling from serial work to parallel work, reducing the floor area of the equipment, improving the production efficiency, and further reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the dialyzer automatic sealing system of the present utility model;

[0028] Figure 2 is a three-dimensional view of the dialyzer grasping device of the present utility model;

[0029] Figure 3 is a front view of the film bundle sealing device of the present utility model;

[0030] Figure 4 is a front view of the dialyzer transfer device of the present utility model;

[0031] Figure 5 is a three-dimensional view of the relative positions of the film bundle vision detection device, the film bundle sealing device and the film bundle cooling device of the present utility model;

[0032] Figure 6 is a comparison diagram of the dialyzer transfer device in different positions of the present utility model.

[0033] Figure 7It is a layout diagram of the utility model that a set of dialyzer grasping devices is shared by multiple sets of membrane bundle visual inspection devices, membrane bundle film sealing devices, dialyzer transfer devices, and membrane bundle cooling devices. Detailed implementation manners

[0034] The implementation manners of the utility model will be further described below with reference to the accompanying drawings.

[0035] This embodiment discloses an automatic dialyzer film sealing system, as Figure 1 shown, which includes a dialyzer grasping device 1, a membrane bundle visual inspection device 2, a membrane bundle film sealing device 3, a dialyzer transfer device 4, and a membrane bundle cooling device 5.

[0036] As Figure 2 shown, the dialyzer grasping device 1 includes a left grasping mechanism 11 and a right grasping mechanism 12. The left grasping mechanism 11 is used to grasp an unsealed dialyzer from a transmission line to the dialyzer transfer device 4, and the right grasping mechanism 12 is used to grasp the sealed dialyzer from the dialyzer transfer device 4 to the next transmission line. The left grasping mechanism 11 and the right grasping mechanism 12 have the same structure, and each includes a horizontally arranged moving electric cylinder 111. The moving electric cylinder 111 is connected to a vertical pneumatic slide 112, and a detachable left and right clamping block 114 is installed at the bottom end of the vertical pneumatic slide 112 through a clamping jaw cylinder 113.

[0037] As Figure 4 shown, the dialyzer transfer device 4 is located between the left grasping mechanism 11 and the right grasping mechanism 12, and includes a transfer cylinder 41 and a dialyzer clamping mechanism 42 installed on the transfer cylinder 41. The dialyzer clamping mechanism 42 at least adopts two clamping modules with the same structure. A stop module 411 is installed in the middle of the transfer cylinder 41. During normal production, the stop module 411 is in a working state, and the transfer cylinder 41 drives two dialyzer clamping mechanisms 42 to reciprocate on one side of the stop module 411 and reciprocate between the first cooling position - film sealing position - second cooling position. During maintenance, the stop module 411 is in a closed state, and the transfer cylinder 41 drives two dialyzer clamping mechanisms 42 to move to the detection position on the other side of the stop module 411 and wait for maintenance.

[0038] The clamping module includes a pneumatic jaw 421, a V-shaped pad 422, crescent-shaped left and right clamping blocks 423, and membrane bundle left and right clamping semi-circular pieces 424. Among them, the pneumatic jaw 421 is installed at the bottom of the mounting base plate 425. Two groups of crescent-shaped left and right clamping blocks 423 and membrane bundle left and right clamping semi-circular pieces 424 are respectively installed on the left and right sides of the mounting base plate 425, and the product is clamped by the opening and closing movement of the pneumatic jaw 421. Two V-shaped pads 422 are installed above the mounting base plate 425, and the two V-shaped pads 422 are located inside the two groups of crescent-shaped left and right clamping blocks 423 and membrane bundle left and right clamping semi-circular pieces 424.

[0039] As Figure 3 shown, the film bundle sealing device 3 uses a pair of sealing units with the same structure and is arranged oppositely on the left and right sides of the dialyzer transfer device. The position where the film bundle sealing device 3 is located is used as the sealing position. Each sealing unit includes a motion mechanism 31, a sealing mechanism 32, and a heat insulation mechanism 33. Among them, the motion mechanism 31 is arranged perpendicular to the dialyzer transfer device 4, the sealing mechanism 32 is installed at the end of the motion mechanism 31 and faces the dialyzer transfer device 4, and the heat insulation mechanism 33 is installed at the front end of the sealing mechanism 32 and is in contact with the end face of the dialyzer.

[0040] Specifically, in the film bundle sealing device 3, the motion mechanism 31 includes a pneumatic slide 311 and a toothed electric cylinder 312 arranged in the same direction, and the toothed electric cylinder 312 is installed on the pneumatic slide 311; the sealing mechanism 32 includes a heat source 321 and a temperature transmitter 322, and the heat source 321 is controlled within a certain temperature range through the temperature transmitter 322; the heat insulation mechanism 33 drives the heat insulation plate to rotate through a swing cylinder to cut off the heat conduction between the sealing mechanism 32 and the film bundle.

[0041] The film bundle cooling device 5 is provided with two sets, which are distributed on the front and rear sides of the film bundle sealing device 3. The positions where the two sets of film bundle cooling devices 5 are located are recorded as the first cooling position and the second cooling position, and they have both cooling and loading / unloading actions;

[0042] The film bundle vision detection device 2 is arranged at the cooling position and corresponds to the position of the film bundle cooling device 5; the film bundle vision detection device 2 includes a top vision detection mechanism 21 and an on-line vision detection mechanism 22. Among them, the top vision detection mechanism 21 is installed at the top of the film bundle sealing position and is used to detect the film bundle sealing length and feed back the film bundle sealing length to the film bundle sealing device 3, and the on-line vision detection mechanism 22 is installed at the left and right ends of the film bundle cooling position and is used to detect the quality of the end faces on both sides of the film bundle after sealing.

[0043] An automatic dialyzer sealing method uses the above-mentioned automatic dialyzer sealing system and includes the following steps:

[0044] S1: The transfer cylinder 41 drives the dialyzer clamping mechanism 42 to move between the left grasping mechanism 11 and the right grasping mechanism 12. In the initial state, loading is performed at the first cooling position. The left grasping mechanism 11 grasps an unsealed dialyzer onto the first clamping module of the dialyzer clamping mechanism 42, and the dialyzer is clamped. The top vision detection mechanism 21 located at the first cooling position detects the film bundle length of the unsealed dialyzer and feeds it back to the film bundle sealing device 3;

[0045] S2: The transfer cylinder 41 carries the dialyzer clamping mechanism 42 to move forward, so that the first clamping module reaches the film sealing position. At the same time, the second clamping module will reach the first cooling position. Then, the left grasping mechanism 11 grabs the next non-film-sealed dialyzer onto the second clamping module on the dialyzer clamping mechanism 42, and the dialyzer is clamped. The first clamping module performs the film sealing work at the film sealing position, the heat insulation mechanism 33 opens, and the motion mechanism 31 drives the film sealing mechanism 32 to move forward. Among them, the toothed electric cylinder 312 drives the film sealing mechanism 32 to move forward at a slow speed. At the same time, the temperature transmitter 322 controls the heat source 321 within a certain temperature range. The second clamping module is at the first cooling position, and the top vision detection mechanism 21 detects the film bundle length of the non-film-sealed dialyzer and feeds it back to the film bundle film sealing device 3.

[0046] S3: The transfer cylinder 41 carries the dialyzer clamping mechanism 42 to continue moving forward, so that the second clamping module reaches the film sealing position and performs the same film sealing work as in S2. At the same time, the first clamping module will reach the second cooling position for cooling. After cooling, the online vision detection mechanism 22 detects the quality of the film sealing end face. After the detection is completed, the right grasping mechanism 12 grabs the film-sealed dialyzer from the dialyzer transfer device 4 to the next transmission line. Immediately afterwards, the left grasping mechanism 11 grabs the next non-film-sealed dialyzer onto the first clamping module on the dialyzer clamping mechanism 42 to complete the feeding work.

[0047] S4: After the dialyzer on the second clamping module in step S3 is film-sealed, the transfer cylinder 41 carries the dialyzer clamping mechanism 42 to move backward, so that the second clamping module and the film-sealed dialyzer move to the first cooling position together for cooling work. After cooling, repeat the same detection, blanking, and feeding work as in S3. At the same time, the first clamping module carries the non-film-sealed dialyzer grabbed by the left grasping mechanism 11 to the film sealing position and repeats the same film sealing work as in S2.

[0048] S5: Repeat S2 to S4 until all dialyzers are film-sealed.

[0049] The utility model can achieve a high-quality film bundle film sealing end face without adding additional consumables. At the same time, it changes the serial operation of film bundle film sealing and film bundle cooling to parallel operation, reduces the floor area of the equipment, improves production efficiency, and further reduces production costs.

Claims

1. A dialyzer automatic membrane sealing system, characterized in that Includes the following: The dialyzer grabbing device (1) comprises a left grabbing mechanism (11) and a right grabbing mechanism (12), wherein the left grabbing mechanism (11) is used to grab an unsealed dialyzer from a transmission line to a dialyzer transfer device (4), and the right grabbing mechanism (12) is used to grab a sealed dialyzer from the dialyzer transfer device (4) to the next transmission line; The dialyzer transfer device (4) is located between the left gripping mechanism (11) and the right gripping mechanism (12), and comprises a transfer cylinder (41) and a dialyzer clamping mechanism (42) mounted on the transfer cylinder (41), wherein the dialyzer clamping mechanism (42) uses at least two clamping modules with the same structure; The membrane bundle sealing device (3) adopts a pair of sealing units with the same structure and is arranged opposite to each other on the left and right sides of the dialyzer transfer device. The position where the membrane bundle sealing device (3) is located is used as the sealing position. Each sealing unit comprises a moving mechanism (31), a sealing mechanism (32) and a heat insulation mechanism (33). The moving mechanism (31) is arranged perpendicular to the dialyzer transfer device (4). The sealing mechanism (32) is installed at the end of the moving mechanism (31) and faces the dialyzer transfer device (4). The heat insulation mechanism (33) is installed at the front end of the sealing mechanism (32) and contacts the end surface of the dialyzer. The film bundle cooling device (5) is provided in two sets, which are distributed on the front and rear sides of the film bundle sealing device (3). The positions of the two sets of film bundle cooling devices (5) are recorded as the first cooling position and the second cooling position, which have both cooling and loading and unloading actions.

2. The dialyzer automatic membrane sealing system according to claim 1, characterized in that: It also includes a film bundle visual inspection device (2), which is arranged at a cooling position and corresponds to the position of the film bundle cooling device (5); the film bundle visual inspection device (2) includes a top visual inspection mechanism (21) and an online visual inspection mechanism (22), wherein the top visual inspection mechanism (21) is installed at the top of the film bundle sealing position, and is used to detect the film bundle sealing length and feed back the film bundle sealing length to the film bundle sealing device (3); the online visual inspection mechanism (22) is installed at the left and right ends of the film bundle cooling position, and is used to detect the quality of the end faces of both sides of the film bundle after sealing.

3. The dialyzer automatic membrane sealing system according to claim 1, characterized in that: A stop module (411) is installed in the middle of the transfer cylinder (41). During normal production, the stop module (411) is in a working state, and the transfer cylinder (41) carries the two dialyzer clamping mechanisms (42) to reciprocate on one side of the stop module (411), and reciprocates between the first cooling position-the film sealing position-the second cooling position; during maintenance, the stop module (411) is in a closed state, and the transfer cylinder (41) carries the two dialyzer clamping mechanisms (42) to move to the detection position on the other side of the stop module (411) to wait for maintenance.

4. The dialyzer automatic membrane sealing system according to claim 1, characterized in that: The left grasping mechanism (11) and the right grasping mechanism (12) have the same structure and respectively comprise a horizontally arranged movable electric cylinder (111), the movable electric cylinder (111) being connected to a vertical pneumatic slide (112), and the bottom end of the vertical pneumatic slide (112) is provided with detachable left and right clamping blocks (114) via a clamping claw cylinder (113).

5. The dialyzer automatic membrane sealing system according to claim 1, characterized in that: The clamping module comprises a pneumatic clamp (421), a V-shaped pad (422), a crescent-shaped left and right clamping block (423) and a membrane bundle left and right clamping semicircular pieces (424), wherein the pneumatic clamp (421) is installed at the bottom of the mounting base plate (425), and two groups of crescent-shaped left and right clamping blocks (423) and the membrane bundle left and right clamping semicircular pieces (424) are respectively installed on the left and right sides of the mounting base plate (425), and the product is clamped as the pneumatic clamp (421) opens and closes. Two V-shaped pads (422) are installed above the mounting base plate (425), and the two V-shaped pads (422) are located on the inner side of the two groups of crescent-shaped left and right clamping blocks (423) and the membrane bundle left and right clamping semicircular pieces (424).

6. The dialyzer automatic membrane sealing system according to claim 1, characterized in that: In the film bundle sealing device (3), the motion mechanism (31) comprises a pneumatic slide (311) and a toothed electric cylinder (312) arranged in the same direction, and the toothed electric cylinder (312) is installed on the pneumatic slide (311); the film sealing mechanism (32) comprises a heat source (321) and a temperature transmitter (322), and the heat source (321) is controlled within a certain temperature range by the temperature transmitter (322); the heat insulation mechanism (33) drives the heat insulation plate to rotate through the swing cylinder to achieve heat conduction between the film sealing mechanism (32) and the film bundle.

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