Isolation gown production line positive and negative pressure switching conveyor device

Abstract

A positive and negative pressure switching conveying device for an isolation gown production line includes a conveying device body, the conveying device body includes a frame and a conveyor belt, transmission rollers are respectively installed at both ends of the frame, and the conveyor belt is installed on the transmission roller and the frame, the frame is a trough-shaped structure with an open top, and ears for installing the transmission rollers are respectively arranged at the opposite ends of the frame, and a partition is installed in the frame, and the partition divides the frame into a positive and negative pressure switching bin and a negative pressure bin, and a first connecting hole is arranged on the side wall of the positive and negative pressure switching bin on the frame, and a second connecting hole is arranged on the side wall of the negative pressure bin; the first connecting hole is used to alternately provide negative pressure and positive pressure to the positive and negative pressure switching bin, and the second connecting hole is used to provide negative pressure to the negative pressure bin; a plurality of air holes are arranged on the conveyor belt. Through the above structure, the sleeves will not be displaced when the conveying device body is running rapidly, and it is convenient for the sleeve transverse movement mechanism to take them.

Description

Technical Field

[0001] The utility model relates to the technical field of isolation gown production equipment, in particular to a positive and negative pressure switching conveying device for an isolation gown production line. Background Art

[0002] Chinese patent document CN117565408A, published (announcement) date: 2024.02.20, is a sleeve and body positioning welding system and forming method for isolation gowns disclosed by our company, see Figure 1 , which discloses a frame 10, a conveyor body 30 is installed in the middle of the frame 10, and second conveyor belt devices 40 are installed on both sides of the conveyor body 30, and two sleeve transverse shifting mechanisms 20 are installed on the frame 10 at a horizontal interval above the conveyor body 30. During production, the sleeves cut by the upstream cutting station enter the conveyor body 30, and then the sleeves on the conveyor body 30 are placed on the second conveyor belt devices 40 on both sides by the two sleeve transverse shifting mechanisms 20. When the conveyor body 30 runs quickly, the sleeves on the conveyor body 30 will move or float, causing a position change, so that the sleeves cannot be aligned with the body of the garment in the next process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a positive and negative pressure switching conveying device for an isolation gown production line, so that the sleeves do not move when the conveying device body runs quickly, and the sleeves are easy to be taken by a lateral movement mechanism.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a positive and negative pressure switching conveying device for an isolation gown production line, comprising a conveying device body, the conveying device body comprising a frame and a conveyor belt, transmission rollers are respectively installed at both ends of the frame, and the conveyor belts are installed on the transmission rollers and the frame, the frame is a trough-type structure with an open top, and ear seats for installing transmission rollers are respectively arranged at the opposite ends of the frame, a partition is installed in the frame, and the partition divides the frame into a positive and negative pressure switching bin and a negative pressure bin, a first connecting hole is arranged on the side wall of the positive and negative pressure switching bin on the frame, and a second connecting hole is arranged on the side wall of the negative pressure bin; the first connecting hole is used to alternately provide negative pressure and positive pressure to the positive and negative pressure switching bin, and the second connecting hole is used to provide negative pressure to the negative pressure bin; a plurality of air holes are arranged on the conveyor belt.

[0005] A support plate is also installed on the top of the frame, and a plurality of through holes are arranged on the support plate.

[0006] It also includes a pressure supply system, which includes a vortex fan; two first connecting holes are provided, one of which is connected to the air outlet of the vortex fan through a first pipe, and the other of which is connected to the air inlet of the vortex fan through a second pipe, a first three-way valve is installed on the first pipe, and a second three-way valve is installed on the second pipe.

[0007] The second connecting hole is connected to the air inlet of the vortex blower through a third pipeline.

[0008] The utility model has the following beneficial effects:

[0009] The negative pressure bin of the utility model is always connected to negative pressure. At this time, the conveyor belt is located at one end of the negative pressure bin for receiving sleeves cut from the upstream cutting station. When the sleeves on the conveyor belt located on one side of the negative pressure bin move toward the positive and negative pressure switching bin, the positive and negative pressure switching bin is negative pressure. When the sleeves on the conveyor belt are located at a designated position on one side of the positive and negative pressure switching bin, the sleeve transverse movement mechanism presses down on the conveyor belt and absorbs the sleeves. At this time, positive pressure is connected to the positive and negative pressure switching bin, and the sleeve transverse movement mechanism rises, so that it is convenient for the sleeve transverse movement mechanism to take the sleeves. Through the above structure, the sleeves will not be displaced when the conveying device body is running quickly, and it is convenient for the sleeve transverse movement mechanism to take the sleeves. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a structural schematic diagram of an existing conveying device.

[0012] Figure 2 It is a structural schematic diagram of the upper pressure supply system of the conveying device of the utility model.

[0013] Figure 3 It is a structural schematic diagram of installing a support plate on the frame of the conveying device body of the utility model.

[0014] Figure 4 It is a schematic diagram of the skeleton structure of the conveying device body of the utility model.

[0015] In the figure:

[0016] Conveying device body 30, frame 31, ear seat 311, partition 32, positive and negative pressure switching chamber 33, first connecting hole 331, negative pressure chamber 34, second connecting hole 341, support plate 35, through hole 351, conveyor belt 36, air vent 361, pressure supply system 37, vortex fan 371, first pipeline 372, first three-way valve 373, second pipeline 374, second three-way valve 375, third pipeline 376. DETAILED DESCRIPTION

[0017] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0018] See also Figure 1-4 A positive and negative pressure switching conveying device for an isolation gown production line includes a conveying device body 30, the conveying device body 30 includes a frame 31 and a conveyor belt 36, transmission rollers are respectively installed at both ends of the frame 31, and the conveyor belt 36 is installed on the transmission roller and the frame 31, the frame 31 is a groove-shaped structure with an open top, and ear seats 311 for installing transmission rollers are respectively arranged at opposite ends of the frame 31, a partition 32 is installed in the frame 31, and the partition 32 divides the frame 31 into a positive and negative pressure switching bin 33 and a negative pressure bin 34, a first connecting hole 331 is arranged on the side wall of the positive and negative pressure switching bin 33 on the frame 31, and a second connecting hole 341 is arranged on the side wall of the negative pressure bin 34; the first connecting hole 331 is used to alternately provide negative pressure and positive pressure to the positive and negative pressure switching bin 33, and the second connecting hole 341 is used to provide negative pressure to the negative pressure bin 34; a plurality of air holes 361 are arranged on the conveyor belt 36. Through the above structure, the sleeves will not be displaced when the conveying device body runs quickly, and the sleeves can be easily taken by the sleeve transverse movement mechanism.

[0019] Specifically, negative pressure is always connected in the negative pressure bin 34. At this time, the conveyor belt 36 is located at one end of the negative pressure bin 34 for receiving the sleeves cut from the upstream cutting station. When the sleeves on the conveyor belt 36 on one side of the negative pressure bin 34 move toward the side of the positive and negative pressure switching bin 33, the positive and negative pressure switching bin 33 is under negative pressure. When the sleeves on the conveyor belt 36 are located at a designated position on one side of the positive and negative pressure switching bin 33, the sleeve transverse movement mechanism 20 is pressed down onto the conveyor belt 36 and absorbs the sleeves. At this time, positive pressure is connected in the positive and negative pressure switching bin 33, and the sleeve transverse movement mechanism 20 rises, thereby facilitating the sleeve transverse movement mechanism to take up the sleeves.

[0020] Figure 4 In the embodiment, two ear seats 311 are respectively installed at opposite ends of the frame 31, and the ear seats 311 are used to install transmission rollers, one of which is connected to a motor to drive the operation. The densely distributed air holes 361 on the conveyor belt 36 are used for air flow to pass through.

[0021] For further information, see Figure 3 A support plate 35 is also installed on the top of the frame 31, and a plurality of through holes 351 are provided on the support plate 35. The support plate 35 can support the conveyor belt 36, so that the conveyor belt 36 is more flat.

[0022] In a preferred embodiment, see Figure 2, and also includes a pressure supply system 37, which includes a vortex fan 371; two first connection holes 331 are provided, one of which is connected to the air outlet of the vortex fan 371 through a first pipe 372, and the other first connection hole 331 is connected to the air inlet of the vortex fan 371 through a second pipe 374, and a first three-way valve 373 is installed on the first pipe 372, and a second three-way valve 375 is installed on the second pipe 374. In this way, the positive and negative pressure switching chamber 33 can be switched through a vortex fan 371.

[0023] Specifically, the vortex fan 371 itself has an air outlet and an air inlet. The air outlet blows out wind with positive pressure, while the air inlet is used to inhale air, thereby generating negative pressure.

[0024] When the positive-negative pressure switching chamber 33 needs negative pressure, the first three-way valve 373 is switched to disconnect the first pipe 372, and the air outlet of the vortex fan 371 is connected to the outside, and the second three-way valve 375 is switched to connect the second pipe 374. At this time, the vortex fan 371 inhales air from the positive-negative pressure switching chamber 33, so that negative pressure is formed in the positive-negative pressure switching chamber 33, thereby adsorbing the sleeves.

[0025] When the positive-negative pressure switching chamber 33 needs positive pressure, the first three-way valve 373 is switched to connect the first pipe 372, and the second three-way valve 375 is switched to disconnect the second pipe 374, so that the air inlet of the vortex fan 371 is connected to the outside. At this time, the vortex fan 371 exhausts air to the positive-negative pressure switching chamber 33, so that positive pressure is formed in the positive-negative pressure switching chamber 33.

[0026] For further information, see Figure 2 The second connecting hole 341 is connected to the air inlet of the vortex fan 371 through the third pipe 376, so that the negative pressure chamber 34 is always at negative pressure.

[0027] Of course, the second connecting hole 341 can also be connected to a vortex fan separately through the third pipeline 376.

[0028] The action process or principle of the utility model is as follows:

[0029] See also Figure 2, the negative pressure chamber 34 is connected to negative pressure through the third pipe 376. At this time, the conveyor belt 36 is located at one end of the negative pressure chamber 34 to receive the sleeves cut from the upstream cutting station. When the sleeves on the conveyor belt 36 on one side of the negative pressure chamber 34 move to the positive and negative pressure switching chamber 33. In this process, the first three-way valve 373 is switched to make the first pipe 372 in a disconnected state, and the air outlet of the vortex fan 371 is connected to the outside. At the same time, the second three-way valve 375 is switched to make the second pipe 374 conductive. At this time, the vortex fan 371 inhales air from the positive and negative pressure switching chamber 33, so that negative pressure is formed in the positive and negative pressure switching chamber 33, thereby adsorbing the sleeves. When the sleeve on the conveyor belt 36 is located at the designated position on one side of the positive-negative pressure switching chamber 33, the sleeve transverse movement mechanism 20 is pressed down onto the conveyor belt 36 and absorbs the sleeve. At this time, the first three-way valve 373 is switched to connect the first pipe 372, and the second three-way valve 375 is switched to disconnect the second pipe 374, so that the air inlet of the vortex fan 371 is connected to the outside. At this time, the vortex fan 371 exhausts air to the positive-negative pressure switching chamber 33, so that positive pressure is formed in the positive-negative pressure switching chamber 33, which is convenient for the sleeve transverse movement mechanism 20 to take the sleeve.

Claims

1. A positive and negative pressure switching conveying device for an isolation gown production line, comprising a conveying device body (30), wherein the conveying device body (30) comprises a frame (31) and a conveyor belt (36), transmission rollers are respectively installed at both ends of the frame (31), and the conveyor belt (36) is installed on the transmission roller and the frame (31), characterized in that: The frame (31) is a trough-shaped structure with an open top. Two opposite ends of the frame (31) are respectively provided with ear seats (311) for mounting a transmission roller. A partition (32) is installed in the frame (31). The partition (32) divides the frame (31) into a positive-negative pressure switching chamber (33) and a negative pressure chamber (34). A first connecting hole (331) is provided on the side wall of the positive-negative pressure switching chamber (33) on the frame (31), and a second connecting hole (341) is provided on the side wall of the negative pressure chamber (34). The first connecting hole (331) is used to alternately provide negative pressure and positive pressure to the positive-negative pressure switching chamber (33), and the second connecting hole (341) is used to provide negative pressure to the negative pressure chamber (34). The conveyor belt (36) is provided with a plurality of air holes (361).

2. The positive and negative pressure switching conveying device for the isolation gown production line according to claim 1 is characterized in that: A support plate (35) is also installed on the top of the frame (31), and a plurality of through holes (351) are provided on the support plate (35).

3. The positive and negative pressure switching conveying device for an isolation gown production line according to claim 1 or 2, characterized in that: It also includes a pressure supply system (37), wherein the pressure supply system (37) includes a vortex blower (371); Two first connection holes (331) are provided, one of the first connection holes (331) is connected to the air outlet of the vortex fan (371) through a first pipe (372), and the other of the first connection holes (331) is connected to the air inlet of the vortex fan (371) through a second pipe (374), a first three-way valve (373) is installed on the first pipe (372), and a second three-way valve (375) is installed on the second pipe (374).

4. The positive and negative pressure switching conveying device for the isolation gown production line according to claim 3 is characterized in that: The second connection hole (341) is connected to the air inlet of the vortex fan (371) via a third pipe (376).

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