PVC inner bag semi-automatic welding equipment

Abstract

This utility model discloses a semi-automatic welding device for PVC inner bags, comprising a welding device and a feeding device. The welding device sequentially includes a color marking unit, a tail tube welding unit, a shape servo unit, a shape welding unit, and a pull tab servo unit. A first color sensing sensor is installed between the color marking unit and the tail tube welding unit, and a second color sensing sensor is installed between the tail tube welding unit and the shape servo unit. Each unit on the welding device is connected to a PLC programmable controller. By receiving data information from the first and second color sensing sensors through the PLC programmable controller, each unit is controlled, achieving semi-automation and solving the problems of low efficiency, time-consuming and labor-intensive pure manual work.

Description

Technical Field

[0001] This utility model belongs to the field of automation equipment technology, specifically relating to a semi-automatic welding equipment for PVC inner bags. Background Technology

[0002] A PVC inner bag is a type of plastic bag made from PVC film. It is installed inside an arm cuff and inflated to measure blood pressure. Typically, the PVC outer layer and the tail tube are separate. Current manufacturers usually cut the PVC outer layer into small pieces, manually take each small piece, weld it to the tail tube, and then weld the outer shape. This process is not only inefficient but also wastes labor costs.

[0003] In summary, existing technologies suffer from low efficiency and are time-consuming and labor-intensive in welding PVC inner bags and tail tubes. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Therefore, the purpose of this utility model is to provide a semi-automatic welding device for PVC inner bags, which can solve the problems of low efficiency and time-consuming and labor-intensive welding of PVC inner bags and tail tubes in the existing technology. This utility model provides a semi-automatic welding device for PVC inner bags, which includes a welding device and a feeding device. The welding device includes, in sequence, a color marking unit, a tail tube welding unit, a shape servo unit, a shape welding unit, and a pull-tab servo unit. A first color sensing sensor is provided between the color marking unit and the tail tube welding unit, and a second color sensing sensor is provided between the tail tube welding unit and the shape servo unit. Each unit on the welding device is connected to a PLC program controller.

[0006] Optionally, the inner side of the feeding device is equipped with a first feeding air shaft and a second feeding air shaft, with the first feeding air shaft directly above the second feeding air shaft. The first material roll and the second material roll are respectively sleeved on the first feeding air shaft and the second feeding air shaft. The outer sides of the first material roll and the second material roll have a first convex key and a second convex key fixed on the first feeding air shaft and the second feeding air shaft.

[0007] Optionally, the tailpipe welding unit is mounted on the first frame. The tailpipe welding unit includes a first cylinder, and the tailpipe upper mold is connected to the first cylinder. The tailpipe welding unit and the high-frequency oscillator are both connected to the welding switch. A limiting surface is provided below the tailpipe upper mold, and a hot melt conductive rod is provided on the limiting surface. The tailpipe port is provided with an end face that is adapted to the hot melt conductive rod.

[0008] Optionally, the external welding unit includes a second cylinder, with the upper mold connected to the second cylinder and fixed on the second frame.

[0009] Optionally, the shape servo unit includes a first servo motor and a first linear module connected thereto, the first linear module being disposed below the outer welding unit and fixedly connected to the second frame.

[0010] Optionally, the sheet-pulling servo unit is located on the right side of the outer welding unit, with the second servo motor and the second linear module connected below. The second linear module is connected to the E-frame above, and a second cylinder is provided on the top of the E-frame. The second cylinder is connected to the first pressure claw. The synchronous belt passes through the middle gap of the E-frame. The synchronous belt has a steel strip surface composed of steel strips inside. The steel strip surface is tightly connected to the synchronous belt above. The steel strip surface restricts the steel strip in the third sawtooth groove through the first sawtooth surface on the sawtooth block, limiting the middle. The second sawtooth groove at the right end and the first sawtooth groove at the left end limit the two ends. Below is a support frame, and a suspension frame is provided on the top of the support frame. The suspension frame is inverted L-shaped and has a third cylinder on the top. The second pressure claw is connected to the third cylinder. The sawtooth block is fixed on the frame in the middle of the E-frame.

[0011] Optionally, the color marking unit includes a fixed block, a motor and an eccentric wheel are disposed on both sides of the fixed block, and a typing head is disposed at the non-center position of the eccentric wheel.

[0012] Optionally, the typewriter, the first color sensor, and the second color sensor are on the same straight line.

[0013] Optionally, the feeding device is located on the left side of the welding device. From left to right on the welding device are a color marking unit, a first color sensing sensor, a tail tube welding unit, a second color sensing sensor, a shape welding unit, and a sheet pulling servo unit. The shape servo unit is located below the shape welding unit.

[0014] Optionally, a PLC program controller is provided above the welding equipment.

[0015] In summary, this utility model has at least one of the following beneficial effects:

[0016] (1) This utility model uses a PLC program controller to receive data from the color sensor to control whether the motor and air pump work, thereby achieving a partially automatic welding effect. The setting of the pull sheet servo unit can automatically fix and pull the leather, making the mechanized operation more precise and solving the problem of low efficiency, time and labor cost of traditional PVC inner bag welding. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a semi-automatic welding device for PVC inner bags according to the present invention;

[0019] Figure 2 This is a schematic diagram of the feeding unit of a semi-automatic PVC inner bag welding device according to the present invention;

[0020] Figure 3 This is a schematic diagram of the tail pipe welding unit of a semi-automatic welding equipment for PVC inner bags according to this utility model;

[0021] Figure 4 This is a schematic diagram of the tail pipe welding unit frame of a semi-automatic PVC inner bag welding device according to the present invention.

[0022] Figure 5 This is a partial schematic diagram of the tail tube insertion of a semi-automatic PVC inner bag welding device according to this utility model;

[0023] Figure 6 This is a schematic diagram of a high-frequency oscillator for a semi-automatic PVC inner bag welding device according to the present invention.

[0024] Figure 7 This is a schematic diagram of the internal workings of the pull tab servo unit of a semi-automatic PVC inner bag welding device according to this utility model;

[0025] Figure 8 This is a schematic diagram of the pull tab servo unit of a semi-automatic PVC inner bag welding device according to the present invention;

[0026] Figure 9 This is a schematic diagram showing the location of the color sensing sensor in a semi-automatic PVC inner bag welding device according to this utility model.

[0027] Figure 10This is a perspective view of the welding cylinder of a semi-automatic welding device for PVC inner bags according to this utility model.

[0028] Figure 11 This is a rear view of the welding cylinder of a semi-automatic PVC inner bag welding device according to the present invention.

[0029] Figure 12 This is a schematic diagram of the color marking unit of a semi-automatic welding device for PVC inner bags according to this utility model.

[0030] List of reference numerals in the attached diagram: 1. Welding equipment; 11. First serrated groove; 2. Feeding equipment; 21. First feeding air shaft; 22. Second feeding air shaft; 23. Second material roll; 24. First material roll; 25. Second protruding key; 26. First protruding key; 27. Sheet; 3. Tail tube welding unit; 31. Tail tube; 32. Welding switch; 33. Tail tube upper mold; 34. End face; 35. Hot melt conductive rod; 36. Limiting surface; 37. First cylinder; 38. High-frequency oscillator; 39. First frame; 4. Outline welding unit; 41. Upper mold; 42. Second cylinder; 43. Second frame; 5. Outline servo unit; 51. First servo motor; 52. First linear module; 6. Pulling servo unit; 61. Second servo motor; 62. Synchronous belt; 63. First pressure claw; 64. Fourth cylinder; 65. Third cylinder; 66. Second pressure claw; 67. E-frame; 68. Support frame; 69. Suspension frame; 610. Second linear module; 611. Sawtooth block; 612. First sawtooth surface; 613. Second sawtooth surface; 614. Steel bar; 615. Steel bar surface; 616. Second sawtooth groove; 617. Third sawtooth groove; 7. Color marking unit; 71. Motor; 72. Eccentric wheel; 73. Typing head; 81. First color sensing sensor; 82. Second color sensing sensor. Implementation

[0031] The following is in conjunction with the appendix Figure 1-12 This utility model will be described in further detail below.

[0032] Example 1, refer to Figure 1-12 In this embodiment, to solve the problems of low efficiency and time-consuming and labor-intensive welding of PVC inner bags and tail tubes in the prior art, this utility model discloses a semi-automatic welding device for PVC inner bags, including a welding device 1 and a feeding device 2 placed at the head of the welding device 1, mainly used for feeding the leather 27. The feeding device 2 is manually inflated and deflated by the first feeding air shaft 21 and the second feeding air shaft 22, causing the first convex key 26 and the second convex key 25 to float up and sink down, thereby limiting the second material roll 23 and the first material roll 24, preventing them from derailing during operation, and thus ensuring the stability of feeding.

[0033] To the right of the feeding device 2 is the color marking unit 7 on the welding device 1, mainly used for marking the leather 27. To the right of the color marking unit 7 is the first color sensing sensor 81, fixed on the welding device 1, used to sense the markings on the leather 27. To the right of the first color sensing sensor 81 is the tail tube welding unit 3, fixed by the first frame 39 of the welding device 1. The first cylinder 37 is fixed on the top of the first frame 39. The tail tube upper mold 33 is fixed to the telescopic column by screws. The telescopic column and the first cylinder 37 are connected to form a whole. A limiting surface 36 is provided below the tail tube upper mold 33. A hot melt conductive rod 35 is provided on the limiting surface 36. The tail tube 31 port is provided with an end face 34 that is adapted to the hot melt conductive rod 35. The tail tube welding unit 3 is used to weld the leather 27 and the tail tube 31 together.

[0034] To the right of the tailpipe welding unit 3 is the second color sensing sensor 82, which is fixed to the second frame 43 by a connector and is used to sense the markings on the leather 27. The second frame 43 is fixed to the right of the second color sensing sensor 82 and is fixed to the first linear module 52. The shape welding unit 4 is set on the second frame 43 and includes a second cylinder 42 set at the top. The upper mold 41 is fixed to the telescopic column by screws. The telescopic column and the second cylinder 42 are connected to form a whole. The shape welding unit 4 is used to weld the shape of the leather 27. Below the shape welding unit 4 is the shape servo unit 5, which includes the first linear module 52 and the first servo motor 51. The shape servo unit 5 is set on the welding equipment 1 and is connected to the PLC program controller.

[0035] The sheet-pulling servo unit 6 is located to the right of the outer welding unit 4. Its main function is to pull the sheet 27 forward. The second linear module 610 and support frame 68 are fixed to the welding equipment 1. The support frame 68 has a second serrated surface 613 and a second serrated groove 616. The E-shaped frame 67 is fixed to the second linear module 610, and the serrated block 611 is fixed to the E-shaped frame 67. The serrated block 611 has a first serrated surface 612 and a third serrated groove 617. The steel strip 614... One end is fixed in the second serrated groove 616 of the support frame 68 and passes through the third serrated groove 617 of the serrated block 611. The other end is fixed in the first serrated groove 11 of the welding equipment 1. The first serrated surface 612 and the second serrated surface 613 are used to restrict the steel strip 614 and prevent the steel strip 614 from bending. The first serrated surface 612, the second serrated surface 613, and the steel strip surface 615 are on the same horizontal plane. A timing belt 62 is provided on the timing belt 62, and a leather strap 27 is provided on the timing belt 62. The fourth cylinder 64 is fixed at the top of the E-type frame 67. The first pressure claw 63 is fixed to the telescopic column by screws. The telescopic column and the fourth cylinder 64 are connected to form a whole. The suspension frame 69 is fixed to the support frame 68. The third cylinder 65 is fixed at the top of the suspension frame 69. The second pressure claw 66 is fixed to the telescopic column by screws. The telescopic column and the third cylinder 65 are formed a whole.

[0036] Specific implementation principle: When using this utility model, first install the leather 27, manually insert the tail tube 31 into the hot melt conductive rod 35, and make the end face 34 of the tail tube 31 flush with the limiting surface 36. Then press the welding switch 32. At this time, the PLC program starts running. The PLC program controls the first cylinder 37 to move downward, driving the upper mold 33 of the tail tube to move downward. After moving downward a fixed distance, it presses the tail tube 31 and the leather 27 pulled out from the second material roll 23 and the first material roll 24. Then the PLC controls the high frequency oscillator 38 to start working to generate high frequency current so that the local leather 27 melts and the tail tube is welded. The high frequency oscillator 38 is connected to the PLC program control circuit.

[0037] After the tail tube welding unit 3 finishes welding, the PLC program controls the first cylinder 37 to move upward and drive the tail tube upper mold 33 to move upward. After moving upward for a fixed distance, it stops moving upward. At the same time, the PLC program controls the second servo motor 61 of the sheet pulling servo unit 6 to start and drive the second linear module 610 to move. The PLC program controls the third cylinder 65 to move upward for a fixed distance and then stop. The second pressure claw 66 is fixed to the third cylinder 65 as a whole. Therefore, the second pressure claw 66 stops moving after moving upward for a fixed distance and no longer clamps the leather 27 and the timing belt 62 in order to pull the sheet. At this time, the first clamping claw 63 has clamped the leather 27 and the timing belt 62. The E-frame 67 is fixed on the second linear module 610. The second linear module 610 drives the E-frame 67 to move forward. The serrated block 611 and the first clamping claw 63 are both fixed on the E-frame 67. The first clamping claw 63 and the first serrated surface 612 clamp the leather 27 and the timing belt 62 and move forward with the E-frame 67. After the first color sensing sensor 81 senses the color, it transmits the data to the PLC program controller. The second servo motor 61 stops working. The PLC program controls the first clamping claw 63 to move upward a fixed distance and then backward a fixed distance, and finally downward a fixed distance to clamp the leather 27 and the timing belt 62. The PLC program controls the third cylinder 65 to move downward a fixed distance, driving the second clamping claw 66 to move downward a fixed distance to clamp the leather 27 and the timing belt 62, preventing the leather 27 from slipping. Simultaneously, the first servo motor 51 of the shape servo unit 5 starts, driving the first linear module 52 to move, thereby driving the second frame 43 to move, and driving the second color sensing sensor 82 to move left and right. After the second color sensing sensor 82 senses the color, the first servo motor 51 stops working. The PLC program controls the second cylinder 42 to move downward, driving the upper mold 41 of the shape welding unit 4 to move downward. After moving downward a fixed distance, it presses the leather 27, and the high-frequency oscillator 38 starts working to generate high-frequency current for shape welding. After the shape welding unit 4 finishes welding, the PLC program controls the second cylinder 42 to move upward and drive the upper mold 41 to move upward. After moving upward a fixed distance, it stops moving upward. At the same time, the PLC program controls the motor 71 of the color marking unit 7 to start working and rotate one revolution. The motor 71 drives the eccentric wheel 72 to rotate one revolution. The rotation of the eccentric wheel 72 drives the typing head 73 to move downward and type words of the same color on the leather 27. The rotation of the motor 71 drives the typing head 73 on the eccentric wheel 72 to move upward and return to its original position.

[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A semi-automatic PVC inner bag welding apparatus, characterized by: The welding equipment includes a welding device (1) and a feeding device (2). The welding device (1) includes a color marking unit (7), a tail tube welding unit (3), a shape servo unit (5), a shape welding unit (4), and a sheet pulling servo unit (6) in sequence. A first color sensing sensor (81) is provided between the color marking unit (7) and the tail tube welding unit (3), and a second color sensing sensor (82) is provided between the tail tube welding unit (3) and the shape servo unit (5). Each unit on the welding device (1) is connected to a PLC program controller.

2. The PVC inner bag semi-automatic welding apparatus according to claim 1, characterized in that, The inner side of the feeding device (2) is equipped with a first feeding air shaft (21) and a second feeding air shaft (22). The first feeding air shaft (21) is directly above the second feeding air shaft (22). The first material roll (24) and the second material roll (23) are respectively sleeved on the first feeding air shaft (21) and the second feeding air shaft (22). The outer sides of the first material roll (24) and the second material roll (23) have a first protruding key (26) and a second protruding key (25) fixed on the first feeding air shaft (21) and the second feeding air shaft (22).

3. The PVC inner bag semi-automatic welding device according to claim 1, characterized in that, The tail tube welding unit (3) is set on the first frame (39). The tail tube welding unit (3) includes a first cylinder (37), the tail tube upper mold (33) is connected to the first cylinder (37), the tail tube welding unit (3) and the high frequency oscillator (38) are both connected to the welding switch (32), a limiting surface (36) is provided below the tail tube upper mold (33), a hot melt conductive rod (35) is provided on the limiting surface (36), and an end face (34) adapted to the hot melt conductive rod (35) is provided at the end of the tail tube (31).

4. The semi-automatic PVC inner bag welding apparatus according to claim 1, wherein, The external welding unit (4) includes a second cylinder (42), the upper mold (41) is connected to the second cylinder (42), and is fixed on the second frame (43).

5. A semi-automatic welding device for PVC inner bags according to claim 4, characterized in that, The shape servo unit (5) includes a first servo motor (51) and a first linear module (52) connected thereto. The first linear module (52) is located below the outer welding unit (4) and is fixedly connected to the second frame (43).

6. The PVC inner bag semi-automatic welding apparatus according to claim 1, characterized in that, The sheet-pulling servo unit (6) is located on the right side of the outer welding unit (4). The second servo motor (61) below is connected to the second linear module (610). The second linear module (610) is connected to the E-frame (67) above. The top of the E-frame (67) is equipped with a fourth cylinder (64). The fourth cylinder (64) is connected to the first pressure claw (63). The synchronous belt (62) passes through the middle gap of the E-frame (67). The synchronous belt (62) is equipped with a steel strip surface (615) composed of steel strips (614) inside. The steel strip surface (615) is tightly connected to the synchronous belt (62) above. The steel strip surface (615) passes through... The first sawtooth surface (612) on the sawtooth block (611) restricts the steel strip (614) within the third sawtooth groove (617) to limit the middle, and the second sawtooth groove (616) limited by the second sawtooth surface (613) on the right end and the first sawtooth groove (11) at the left end limit the two ends. Below is a support frame (68), and a suspension frame (69) is provided on the top of the support frame (68). The suspension frame (69) is an inverted L-shape, and a third cylinder (65) is provided on the top. The second pressure claw (66) is connected to the third cylinder (65). The sawtooth block (611) is fixed on the frame in the middle of the E-type frame (67).

7. The semi-automatic PVC inner bag welding apparatus according to claim 1, wherein, The color marking unit (7) includes a fixed block, a motor (71) and an eccentric wheel (72) on both sides of the fixed block, and a typing head (73) is provided at the non-center position of the eccentric wheel (72).

8. The PVC inner bag semi-automatic welding apparatus according to claim 7, characterized in that, The typewriter (73), the first color sensor (81), and the second color sensor (82) are on the same straight line.

9. The PVC inner bag semi-automatic welding apparatus according to claim 1, characterized in that, The feeding device (2) is located to the left of the welding device (1). From left to right on the welding device (1) are a color marking unit (7), a first color sensing sensor (81), a tail tube welding unit (3), a second color sensing sensor (82), a shape welding unit (4), and a sheet pulling servo unit (6). The shape servo unit is located below the shape welding unit (4).

10. The PVC inner bag semi-automatic welding apparatus according to claim 1, characterized in that, The welding equipment (1) is equipped with a PLC program controller.

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