Device for preventing bag from being pulled out

Abstract

The utility model discloses an anti-dragging bag discharging device which comprises a machine body and further comprises a bag discharging mechanism, the bag discharging mechanism is arranged in the machine body, and the bag discharging mechanism comprises a lower rolling shaft, an upper rolling shaft, a fixing base, a fixing plate, a connecting rod, a pressing wheel, a connecting rod, a spring, a servo motor, a rotating ring, an arc-shaped groove A and an arc-shaped groove B; a lower rolling shaft and an upper rolling shaft which correspond to each other in position are installed in the machine body and close to the bag outlet position, a fixing base is arranged on the side, close to the lower rolling shaft, in the machine body, when bags are discharged, the upper rolling shaft and the lower rolling shaft rotate, a PLC synchronously controls a servo motor to operate so that the angle of a rotating ring can be adjusted, and a connecting rod is pushed into an arc-shaped groove B; at the moment, the height of the pressing wheel is increased, the bag body can be normally discharged, the rotating ring is reset after bag discharging is completed, meanwhile, the pressing wheel and the fixing base are matched to clamp the bag body which is not discharged, when the bag body is separated and torn, the position stability of the bag body which is not discharged is kept, and the problem that the bag body is pulled out or damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bag discharging machine components, in particular to a bag discharging prevention device. Background Art

[0002] A bag dispensing machine refers to a type of packaging bag providing equipment that stores packaging bags and can dispense bags on demand. Common bag dispensing machines are generally automated equipment and are widely used in hospitals, shopping malls and other places.

[0003] The existing bag dispensing machine has the following disadvantages when in use: when the bag dispensing machine is dispensing bags, the bags are connected to each other, and the bags that have been dispensed need to be torn off and separated manually. During this operation, excessive force may easily cause the bags inside the machine to be pulled, resulting in the bags that have not been dispensed being damaged or being pulled out of the machine. For this reason, we propose a bag-prevention device. Utility Model Content

[0004] The main purpose of the utility model is to provide a bag-pulling prevention device, which can effectively solve the problems in the background technology by preventing excessive pulling on the bag that has not been taken out of the bag through the bag-pulling mechanism arranged inside the machine body and the added anti-pulling component.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A bag-pulling-proof device comprises a machine body and a bag-discharging mechanism, wherein the machine body is provided with the bag-discharging mechanism, and the bag-discharging mechanism comprises a lower roller, an upper roller, a fixed seat, a fixed plate, a connecting rod, a pressure wheel, a connecting rod, a spring, a servo motor, a swivel, an arc groove A and an arc groove B. A lower roller and an upper roller corresponding to the position are installed near the bag-discharging position inside the machine body, and a fixed seat is provided on one side of the machine body near the lower roller. The bottom of the fixed plate is movably connected to a pressure wheel located at the top of the fixed seat through a connecting rod, and both ends of the pressure wheel are connected to the connecting rod through a connecting rod. A spring is installed between the bottom of the fixed plate and the connecting rod, a servo motor is installed on one side of the inner wall of the machine body, and a swivel is installed on the power end of the servo motor, an arc groove A and an arc groove B are opened on the surface of the swivel, and the swivel is attached to the surface of the connecting rod.

[0007] Furthermore, a table is provided on the surface of the machine body, and a control panel is embedded in the top of the machine body surface; the control panel is used to control the machine body to control the bag output, and the table surface is used to place the items to be packaged.

[0008] Furthermore, a rotating shaft is installed at the bottom of the fixing plate and is connected to the connecting rod through the rotating shaft; the rotating shaft plays a connecting role so that the angle of the pressure wheel can be adjusted.

[0009] Furthermore, a PLC controller is installed on one side of the machine body, and the control end of the PLC controller is connected to the power input end of the upper roller and the control end of the servo motor; the PLC controller plays a linkage control role. When the upper roller and the lower roller are running to discharge bags, it controls the servo motor to rotate the swivel to adjust the connecting rod to the bag discharge height. After the bag discharge is completed, it controls the servo motor to rotate the swivel to adjust to the pressing height.

[0010] Furthermore, a bag outlet is provided on one side of the body surface, and a guide wheel corresponding to the position of the lower roller is installed inside the body near the bag outlet; the bag body passing through the upper roller and the lower roller is guided by the guide wheel and then discharged from the bag outlet.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the rolled bag body is collected into the interior of the machine body and the end of the bag body passes through the surface of the fixed seat and passes between the lower roller and the upper roller. In the normal non-use state, the connecting rod is in the arc groove A. At this time, the pressure wheel height is relatively low, and the spring elastic force causes the pressure wheel to be in a downward pressure state. When the bag is discharged, the upper roller and the lower roller rotate, and the PLC controller synchronously controls the operation of the servo motor to adjust the angle of the swivel and push the connecting rod into the arc groove B. At this time, the height of the pressure wheel is raised so that the bag can be discharged normally. After the bag is discharged, the swivel is reset and the pressure wheel cooperates with the fixed seat to clamp the bag that has not been discharged. When the bag is separated and torn, the position stability of the bag that has not been discharged is maintained to avoid the problem of it being pulled out or damaged, thereby protecting the normal use of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the overall structure of a bag-pulling-out prevention device.

[0013] Figure 2 It is a schematic diagram of the bag outlet position structure inside the body of a bag-pulling-out prevention device of the utility model.

[0014] Figure 3 The utility model is a schematic diagram of the side structure of the position of the pressing wheel inside the body of the bag-pulling-out prevention device.

[0015] Figure 4 It is a schematic diagram of the connection structure between the swivel and the connecting rod of the bag-pulling-out prevention device of the utility model in different states.

[0016] In the figure: 1. machine body; 101. table; 102. control panel; 2. bag discharging mechanism; 201. lower roller; 202. upper roller; 203. fixing seat; 204. fixing plate; 205. rotating shaft; 206. connecting rod; 207. pressure wheel; 208. connecting rod; 209. spring; 210. servo motor; 211. swivel; 212. arc groove A; 213. arc groove B; 214. PLC controller; 215. guide wheel; 216. bag discharging port. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-4 As shown, a bag-pulling-proof device comprises a machine body 1 and a bag-discharging mechanism 2. The bag-discharging mechanism 2 is arranged inside the machine body 1. The bag-discharging mechanism 2 comprises a lower roller 201, an upper roller 202, a fixing seat 203, a fixing plate 204, a connecting rod 206, a pressing wheel 207, a connecting rod 208, a spring 209, a servo motor 210, a rotating ring 211, an arc groove A 212 and an arc groove B 213. The lower roller 201 and the upper roller 202 corresponding to the position are installed near the bag-discharging position inside the machine body 1, and a side of the machine body 1 near the lower roller 201 is provided. A fixing seat 203 is arranged, and a pressure wheel 207 located at the top of the fixing seat 203 is movably connected to the bottom of the fixing plate 204 through a connecting rod 206, and both ends of the pressure wheel 207 are connected to the connecting rod 206 through a connecting rod 208. A spring 209 is installed between the bottom of the fixing plate 204 and the connecting rod 206, a servo motor 210 is installed on one side of the inner wall of the body 1, and a swivel 211 is installed on the power end of the servo motor 210, and an arc groove A212 and an arc groove B213 are opened on the surface of the swivel 211, and the swivel 211 is attached to the surface of the connecting rod 208.

[0019] Among them, a table 101 is provided on the surface of the body 1, a control panel 102 is embedded in the top of the surface of the body 1, a rotating shaft 205 is installed at the bottom of the fixed plate 204 and is connected to the connecting rod 206 through the rotating shaft 205; the control panel 102 is used to control the body 1 to control the bag output, the surface of the table 101 is used to place the items to be packaged, and the rotating shaft 205 plays a connecting role so that the angle of the pressing wheel 207 can be adjusted.

[0020] Among them, a PLC controller 214 is installed on one side of the interior of the body 1, and the control end of the PLC controller 214 is connected to the power input end of the upper roller 202 and the control end of the servo motor 210; the PLC controller 214 plays a linkage control role. When the upper roller 202 and the lower roller 201 are running to discharge bags, it controls the servo motor 210 to run the rotating ring 211 to adjust the connecting rod 208 to the bag discharge height. After the bag discharge is completed, the servo motor is controlled to run the rotating ring 211 to adjust to the pressing height.

[0021] Among them, a bag outlet 216 is opened on one side of the surface of the body 1, and a guide wheel 215 corresponding to the position of the lower roller 201 is installed inside the body 1 near the bag outlet 216; the bag body passing through the upper roller 202 and the lower roller 201 is guided by the guide wheel 215 and then discharged from the bag outlet 216.

[0022] It should be noted that the utility model is a bag-preventing device. When working, the rolled bag body is collected into the machine body 1 and the end of the bag body passes through the surface of the fixing seat 203 and passes between the lower roller 201 and the upper roller 202. In the normal unused state, the connecting rod 208 is in the arc groove A212. At this time, the pressing wheel 207 is at a relatively low height. The spring 209 exerts the elastic force to make the pressing wheel 207 in a downward pressing state. When the bag is discharged, the upper roller 202 and the lower roller 201 rotate, and the PLC controller 214 synchronously controls the operation of the servo motor 210 to adjust the angle of the swivel 211 and push the connecting rod 208 into the arc groove B213. At this time, the height of the pressure wheel 207 is raised, so that the bag can be normally discharged. After the bag is discharged, the swivel 211 is reset and the pressure wheel 207 cooperates with the fixing seat 203 to clamp the bag that has not been discharged. When the bag is separated and torn, the position stability of the bag that has not been discharged is maintained to avoid the problem of it being pulled out or damaged, thereby protecting the normal use of the packaging bag.

[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bag-pulling-out prevention device, comprising a body (1), characterized in that: The machine body (1) also includes a bag discharging mechanism (2). The bag discharging mechanism (2) is arranged inside the machine body (1). The bag discharging mechanism (2) includes a lower roller (201), an upper roller (202), a fixed seat (203), a fixed plate (204), a connecting rod (206), a pressure wheel (207), a connecting rod (208), a spring (209), a servo motor (210), a rotating ring (211), an arc groove A (212) and an arc groove B (213). The lower roller (201) and the upper roller (202) corresponding to the position are installed inside the machine body (1) near the bag discharging position, and a fixed seat (203) is arranged on one side of the machine body (1) near the lower roller (201). 3), the bottom of the fixed plate (204) is movably connected to a pressure wheel (207) located at the top of the fixed seat (203) through a connecting rod (206), and both ends of the pressure wheel (207) are connected to the connecting rod (206) through a connecting rod (208), a spring (209) is installed between the bottom of the fixed plate (204) and the connecting rod (206), a servo motor (210) is installed on one side of the inner wall of the body (1), and a swivel (211) is installed on the power end of the servo motor (210), the surface of the swivel (211) is provided with an arc groove A (212) and an arc groove B (213), and the swivel (211) is attached to the surface of the connecting rod (208).

2. The bag-pulling-out prevention device according to claim 1, characterized in that: A platform (101) is provided on the surface of the machine body (1), and a control panel (102) is embedded in the top of the surface of the machine body (1).

3. The bag-pulling-out prevention device according to claim 1, characterized in that: A rotating shaft (205) is installed at the bottom of the fixed plate (204) and is connected to a connecting rod (206) via the rotating shaft (205).

4. The bag-pulling-out prevention device according to claim 1, characterized in that: A PLC controller (214) is installed on one side of the machine body (1), and a control end of the PLC controller (214) is connected to a power input end of the upper roller (202) and a control end of the servo motor (210).

5. The bag-pulling-out prevention device according to claim 1, characterized in that: A bag outlet (216) is provided on one side of the surface of the machine body (1), and a guide wheel (215) corresponding to the position of the lower roller (201) is installed inside the machine body (1) near the bag outlet (216).

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