Hand squeezing prevention device of aluminum plastic packaging machine

Abstract

The utility model discloses a hand squeezing prevention device of an aluminum plastic packaging machine, which comprises a hand squeezing prevention device body matched with a traction stepping mechanism on the aluminum plastic packaging machine, the traction stepping mechanism comprises a traction roller and a lifting roller arranged on one side of the traction roller and matched with the traction roller, and the hand squeezing prevention device body comprises a base. And the lifting roller is rotationally mounted at the top of the base. Through the arrangement of a series of structures, when the hand of a worker mistakenly stretches into the position between the traction roller and the lifting roller, the driving motor can be automatically controlled to be closed, the gap between the traction roller and the lifting roller is enlarged, meanwhile, an audible and visual alarm is given to remind the worker, and the safety of the worker is improved. The PVC material conveying device is simple in structure and convenient to use, the gap between the traction roller and the lifting roller can be enlarged when PVC materials are replaced, then the situation that the hands are squeezed can be effectively reduced, the use safety is improved, in addition, the traction roller and the lifting roller can be rigidly supported while the hands are prevented from being squeezed, and the stability in the PVC material conveying process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-plastic packaging, in particular to a hand-squeezing prevention device for an aluminum-plastic packaging machine. Background Art

[0002] Aluminum-plastic packaging machine is an important equipment in tablet production. It is used for tablet pressing plate, which is generally composed of PVC forming mechanism, feeding machine, heat sealing mechanism, printing and punching mechanism, transmission system, pneumatic system, water cooling device; PVC forming mechanism is composed of PVC unwinding mechanism, PVC heating mechanism, blister forming mechanism, traction stepping mechanism and other devices. The traditional traction stepping mechanism includes a traction roller and a lifting roller located below the traction roller. When working, the PVC material starts from the PVC unwinding mechanism and, under the action of the traction roller, passes through the gap between the traction roller and the lifting roller and enters the subsequent device. Since the gap between the traction roller and the lifting roller is very narrow, it is not easy for the staff to pass through the gap when changing the PVC material. , and it is easy to get fingers pinched. To solve this problem, application number: 201720610517.1 discloses an anti-squeezing device for an aluminum-plastic packaging machine, comprising a base, a mounting frame, a first spring, a traction roller and a lifting roller arranged in parallel, the traction roller being mounted on the base, the traction roller being arranged above the lifting roller, a space for the packaging film to pass between the traction roller and the lifting roller, the bottom end of the mounting frame being hinged to the base, the lifting roller being mounted on the top end of the mounting frame, and the two ends of the first spring being fixed to the base and the mounting frame respectively; the anti-squeezing device for an aluminum-plastic packaging machine has the advantages of scientific design, quick replacement, strong safety and strong practicality;

[0003] The above-mentioned patent discloses an anti-hand squeezing device for an aluminum-plastic packaging machine, which enables the lifting roller to swing and move vertically by means of a first spring and a second spring, thereby achieving the effect of preventing hands from squeezing. However, the device still has the following deficiencies during use: 1. The lifting roller is supported by the first spring and the second spring, and has low stability. During use, the lifting roller is easily shaken by the squeezing of the PVC material, thereby affecting the stable transportation of the PVC material by the traction stepping mechanism. In order to achieve the anti-hand squeezing effect while ensuring the stable use of the traction stepping mechanism, a redesign is carried out. The present application proposes an anti-hand squeezing device for an aluminum-plastic packaging machine. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a hand-squeezing prevention device for an aluminum-plastic packaging machine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The anti-squeezing device of an aluminum-plastic packaging machine comprises an anti-squeezing device body that cooperates with a traction stepping mechanism on the aluminum-plastic packaging machine, the traction stepping mechanism comprises a traction roller and a lifting roller arranged on one side of the traction roller and cooperated therewith, the anti-squeezing device body comprises a base, the lifting roller is rotatably mounted on the top of the base, a circular mounting frame is embedded and fixed on the top of the base, a rotating shaft is rotatably mounted between the front inner wall and the rear inner wall of the circular mounting frame, a supporting mechanism is fixedly sleeved on the rotating shaft, the traction roller is rotatably mounted in the supporting mechanism, the supporting mechanism is used to support the traction roller, the front side of the supporting mechanism is fixedly connected to a driving motor, the rear end of the output shaft of the driving motor is fixedly connected to the front end of the traction roller, the driving motor is used to drive the traction roller, and the supporting mechanism is also fixedly sleeved with a driving motor. The combined lifting roller can convey PVC materials. A monitoring mechanism is fixedly connected to the right side of the supporting mechanism. The monitoring mechanism is used to monitor the gap between the lifting roller and the traction roller. A mounting groove is provided at the bottom of the base. The bottom of the circular mounting frame is located in the mounting groove. A rotating drive mechanism is fixedly sleeved on the rotating shaft. The rotating drive mechanism is used to drive the rotating shaft. The rotating drive mechanism is slidably installed on the top inner wall of the mounting groove. A push rod motor with an output shaft fixedly connected to the rotating drive mechanism is embedded on the left side of the base. A control reminder mechanism is fixedly installed on the top of the base. The control reminder mechanism is electrically connected to the push rod motor, the monitoring mechanism and the drive motor. The control reminder mechanism is used to receive signals from the monitoring mechanism to control the push rod motor and the drive motor and remind personnel.

[0007] Preferably, the support mechanism includes a roller fixedly mounted on a rotating shaft, two inclined support rods are fixedly connected to the top of the roller, the traction roller is rotatably installed between the two support rods, the drive motor is fixedly connected to the front side of the front support rod, and the roller, rotating shaft and support rod cooperate to provide rigid support for the traction roller.

[0008] Preferably, the monitoring mechanism includes two inclined L-shaped mounting rods, which are respectively fixedly mounted on the right side of the corresponding support rods. A monitoring camera is fixedly connected to the top inner wall of the L-shaped mounting rod. The L-shaped mounting rod is used to support the corresponding monitoring camera. The monitoring camera monitors the gap between the lifting roller and the traction roller. The monitoring principle is the existing technology of the monitoring camera itself and is not elaborated here.

[0009] Preferably, the rotary drive mechanism includes a gear fixedly mounted on the rotating shaft, a rack is engaged with the bottom of the gear, both ends of the rack extend to both sides of the circular mounting frame respectively, and sliders are fixedly connected to both sides of the top of the rack, and the sliders are slidably mounted on the top inner wall of the mounting groove. The right end of the output shaft of the push rod motor is fixedly connected to the left end of the rack, and the rack and the gear match to drive the rotating shaft to rotate, and the push rod motor is used to drive the rack.

[0010] Preferably, the control reminder mechanism includes a PLC controller and an audible and visual alarm fixedly connected to the top of the base. The PLC controller is electrically connected to the audible and visual alarm, the drive motor, the push rod motor and the surveillance camera. The PLC controller receives the signal from the surveillance camera to control the drive motor and the push rod motor. The principle is the basic programming setting CNC control method well known to those skilled in the art, which can be achieved by CNC programmers editing the corresponding control numerical program. They are all conventional means or common knowledge and will not be repeated here.

[0011] Preferably, the right side of the support rod is fixedly connected with a connecting block, and the right side of the connecting block is fixedly connected to the left side of the corresponding L-shaped mounting rod, and the connection between the L-shaped mounting rod and the corresponding support rod is achieved through the connecting block.

[0012] Preferably, two T-shaped slide rails are fixedly connected to the top inner wall of the mounting groove, and a T-shaped slide groove with openings on both sides is provided on the top of the slider. The T-shaped slide groove is slidably connected to the corresponding T-shaped slide rails, and the circular mounting frame is located between the two T-shaped slide rails. The T-shaped slide rail and the slider cooperate to provide a lateral guiding effect on the rack.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] 1. The support mechanism can provide rigid support for the traction roller, and the lifting roller is directly installed on the top of the base to ensure stability during the transportation of PVC materials, without shaking that affects transportation.

[0015] 2. Through the coordination of the monitoring mechanism, the rotary drive mechanism, the control reminder mechanism and the push rod motor, when it is detected that the hand of the staff is inserted between the traction roller and the lifting roller, the drive motor is automatically controlled to shut down and the traction roller is driven to the left to increase the gap between the traction roller and the lifting roller. At the same time, the sound and light alarms are activated to remind the staff, which can effectively reduce the possibility of hands being squeezed. When the PVC material is replaced, the traction roller can be driven to rotate again to increase the gap to avoid the situation of hands being squeezed during the material replacement process.

[0016] The utility model adopts a series of structural settings, which can automatically control the drive motor to shut down and increase the gap between the traction roller and the lifting roller when the worker's hand accidentally extends into the space between the traction roller and the lifting roller, and at the same time, sound and light alarms are used to remind the personnel. In addition, the gap between the traction roller and the lifting roller can be increased when the PVC material is replaced, thereby effectively reducing the situation where the hand is squeezed and improving the safety of use. In addition, the traction roller and the lifting roller can be rigidly supported while preventing the worker's hand from being squeezed, thereby ensuring stability during the process of conveying the PVC material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a hand-squeezing prevention device for an aluminum-plastic packaging machine proposed by the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0020] In the figure: 100, base; 101, lifting roller; 102, traction roller; 1, circular mounting frame; 2, mounting groove; 3, L-shaped mounting rod; 4, surveillance camera; 5, drive motor; 6, rotating shaft; 7, rotating roller; 8, support rod; 9, gear; 10, rack; 11, push rod motor; 12, PLC controller; 13, sound and light alarm; 14, slider; 15, T-shaped slide rail. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-3 , an anti-squeezing hand device for an aluminum-plastic packaging machine, comprising an anti-squeezing hand device body that cooperates with a traction stepping mechanism on the aluminum-plastic packaging machine, the traction stepping mechanism comprising a traction roller 102 and a lifting roller 101 arranged on one side of the traction roller 102 and cooperating therewith, the anti-squeezing hand device body comprises a base 100, the lifting roller 101 is rotatably mounted on the top of the base 100, wherein a U-shaped rod is fixedly connected to the top of the base 100, the front and rear ends of the lifting roller 101 are fixedly connected to a pin shaft, a first circular hole is opened on the front inner wall and the rear inner wall of the U-shaped rod, a first bearing is fixedly sleeved in the first circular hole, and the inner ring of the first bearing is fixedly sleeved. The side is fixedly connected to the outer side of the corresponding pin shaft, and the U-shaped rod, the pin shaft and the first bearing cooperate to provide rigid support for the lifting roller 101 and can play the role of rotatable installation of the lifting roller 101. A circular mounting frame 1 is embedded and fixed on the top of the base 100, wherein the top of the base 100 is provided with an embedding hole for fixedly installing the circular mounting frame 1, and a rotating shaft 6 is rotatably installed between the front inner wall and the rear inner wall of the circular mounting frame 1, wherein the front inner wall and the rear inner wall of the circular mounting frame 1 are fixedly connected with a second bearing, and the inner side of the inner ring of the second bearing is fixedly connected to the outer side of the rotating shaft 6, and the second bearing plays the role of rotatable installation of the rotating shaft 6;

[0023] A supporting mechanism is provided on the fixed sleeve of the rotating shaft 6, and the traction roller 102 is rotatably installed in the supporting mechanism. The supporting mechanism includes a roller 7 fixedly sleeved on the rotating shaft 6, and two inclined support rods 8 are fixedly connected to the top of the rotating roller 7. The traction roller 102 is rotatably installed between the two support rods 8, wherein the two support rods 8 are each provided with a second circular hole on one side close to each other, and a third bearing is provided on the fixed sleeve in the second circular hole. A circular shaft is provided in the fixed sleeve in the third bearing, and one end of the two circular shafts close to each other is respectively fixedly connected to the front end and the rear end of the traction roller 102. The third bearing and the circular shaft cooperate to provide the effect of rotatable installation of the traction roller 102. The roller 7, the rotating shaft 6 and the support rod 8 cooperate to provide rigid support for the traction roller 102.

[0024] The front side of the front support rod 8 is fixedly connected to a drive motor 5, and the rear end of the output shaft of the drive motor 5 is fixedly connected to the front end of the circular shaft on the front side. The drive motor 5 is used to drive the traction roller 102 and cooperate with the lifting roller 101 to convey the PVC material. The right sides of the two support rods 8 are fixedly connected to the same monitoring mechanism, and the monitoring mechanism includes two inclined L-shaped mounting rods 3, and the right side of the support rod 8 is fixedly connected to a connecting block, and the right side of the connecting block is fixedly connected to the left side of the corresponding L-shaped mounting rod 3. The connection between the L-shaped mounting rod 3 and the corresponding support rod 8 is realized by the connecting block. A monitoring camera 4 is fixedly connected to the top inner wall of the L-shaped mounting rod 3, and the L-shaped mounting rod 3 is used to support the corresponding monitoring camera 4. The monitoring camera 4 monitors the gap between the lifting roller 101 and the traction roller 102. Its monitoring principle is the existing technology of the monitoring camera 4 itself, which is not elaborated here.

[0025] A mounting groove 2 is provided at the bottom of the base 100, and the bottom of the circular mounting frame 1 is located in the mounting groove 2. A rotation drive mechanism is fixedly sleeved on the rotating shaft 6, and the rotation drive mechanism is slidably installed on the top inner wall of the mounting groove 2. A push rod motor 11 is fixedly installed on the left side of the base 100, and a mounting hole for fixing the push rod motor 11 is provided on the left side of the base 100. The right side of the mounting hole is communicated with the interior of the mounting groove 2. The rotation drive mechanism includes a gear 9 fixedly sleeved on the rotating shaft 6, and a rack 10 is engaged with the bottom of the gear 9. The two ends of the rack 10 extend to both sides of the circular mounting frame 1 respectively, and rectangular through-holes are provided on the inner walls on both sides of the circular mounting frame 1. The rack 10 is located on both sides. The top of the rack 10 is fixedly connected to a slider 14 on both sides, and the slider 14 is slidably mounted on the top inner wall of the mounting groove 2, wherein two T-shaped slide rails 15 are fixedly connected to the top inner wall of the mounting groove 2, and a T-shaped slide groove with openings on both sides is provided on the top of the slider 14. The T-shaped slide groove is slidably connected to the corresponding T-shaped slide rail 15, and the circular mounting frame 1 is located between the two T-shaped slide rails 15. The T-shaped slide rail 15 cooperates with the slider 14 to guide the rack 10 laterally. The right end of the output shaft of the push rod motor 11 is fixedly connected to the left end of the rack 10, and the rack 10 and the gear 9 match to drive the rotating shaft 6 to rotate. The push rod motor 11 is used to drive the rack 10;

[0026] A control reminder mechanism is fixedly installed on the top of the base 100, and the control reminder mechanism includes a PLC controller 12 and an audible and visual alarm 13 fixedly connected to the top of the base 100. The PLC controller 12 is electrically connected to the audible and visual alarm 13, the drive motor 5, the push rod motor 11 and the monitoring camera 4. The PLC controller 12 receives the signal from the monitoring camera 4 to control the drive motor 5 and the push rod motor 11. The principle is a basic programming setting CNC control method well known to those skilled in the art, which can be achieved by editing the corresponding control numerical program by CNC programmers. It is a conventional means or common knowledge and will not be repeated here. The utility model is described as follows: through the arrangement of a series of structures, when the worker's hand accidentally extends between the traction roller 102 and the lifting roller 101, the drive motor 5 is automatically controlled to be shut down, and the gap between the traction roller 102 and the lifting roller 101 is increased. At the same time, an audible and visual alarm is used to remind the personnel. In addition, the gap between the traction roller 102 and the lifting roller 101 can be increased when the PVC material is replaced, thereby effectively reducing the possibility of squeezing the hand and improving the safety of use. In addition, the traction roller 102 and the lifting roller 101 can be rigidly supported while preventing the worker's hand from being squeezed, thereby ensuring the stability during the transportation of the PVC material.

[0027] Working principle: When in use, when the traction stepping mechanism is normally conveying the PVC material, the drive motor 5 is normally turned on, and the output shaft of the drive motor 5 drives the traction roller 102 to rotate and cooperates with the lifting roller 101 to frictionally convey the PVC material. During the conveying process, the two monitoring cameras 4 monitor the gap between the traction roller 102 and the lifting roller 101. When the staff's hand accidentally reaches between the traction roller 102 and the lifting roller 101, the monitoring camera 4 transmits the monitoring image to the PLC controller 12. After receiving the signal, the PLC controller 12 controls the drive motor 5 to turn off, and at the same time controls the push rod motor 11 to turn on in the forward direction. The output shaft of the push rod motor 11 drives the rack 10 to move to the right, and the gear rack 10 moves to the right. The rack 10 drives the two sliders 14 to slide on the corresponding T-shaped slide rails 15 respectively. The rack 10 moves to the right and drives the gear 9 meshing with it to rotate. The gear 9 drives the rotating shaft 6 to rotate counterclockwise. The rotating shaft 6 drives the roller 7, the two support rods 8 and the traction roller 102 to rotate left in turn. When the traction roller 102 rotates to the left, the gap between the traction roller 102 and the lifting roller 101 increases. At the same time, the PLC controller 12 also controls the sound and light alarm 13 to send out a sound and light alarm to remind the personnel to move their hands out. By controlling the drive motor 5 to turn off and increase the gap between the traction roller 102 and the lifting roller 101, and coordinating the sound and light alarm to remind personnel, the situation where the staff's hands are squeezed can be effectively reduced, thereby achieving the effect of preventing hands from being squeezed.

[0028] When the operator's hand leaves, the PLC controller 12 controls the drive motor 5 to start again to drive the traction roller 102. At the same time, the PLC controller 12 also controls the push rod motor 11 to start in the reverse direction. Similarly, the movement process of the push rod motor 11 is opposite to the forward start, so that the traction roller 102 is transformed into a right rotation and in close contact with the PVC material, and the traction conveying operation can be continued. In the traction conveying process, the lifting roller 101 and the traction roller 102 are both rigidly supported, which can ensure stability during the conveying process.

[0029] When the PVC material needs to be replaced later, the push rod motor 11 can be turned on in the forward direction again, so that the traction roller 102 rotates to the left again, so that the gap between the traction roller 102 and the lifting roller 101 increases, and the PVC material can be directly replaced. Due to the large gap, the hands will not be squeezed during the replacement process.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-squeezing device for an aluminum-plastic packaging machine, comprising an anti-squeezing device body that cooperates with a traction stepping mechanism on the aluminum-plastic packaging machine, wherein the traction stepping mechanism comprises a traction roller (102) and a lifting roller (101) arranged on one side of the traction roller (102) and cooperating with the traction roller (101), characterized in that: The hand-squeezing prevention device body comprises a base (100), a lifting roller (101) is rotatably mounted on the top of the base (100), a circular mounting frame (1) is embedded and fixed on the top of the base (100), a rotating shaft (6) is rotatably mounted between the front inner wall and the rear inner wall of the circular mounting frame (1), a support mechanism is fixedly sleeved on the rotating shaft (6), a traction roller (102) is rotatably mounted in the support mechanism, a driving motor (5) is fixedly connected to the front side of the support mechanism, the rear end of the output shaft of the driving motor (5) is fixedly connected to the front end of the traction roller (102), and the support mechanism The right side of the structure is fixedly connected with a monitoring mechanism, the bottom of the base (100) is provided with a mounting groove (2), the bottom of the circular mounting frame (1) is located in the mounting groove (2), a rotating shaft (6) is fixedly sleeved with a rotary drive mechanism, the rotary drive mechanism is slidably mounted on the top inner wall of the mounting groove (2), a push rod motor (11) whose output shaft is fixedly connected to the rotary drive mechanism is embedded and fixed on the left side of the base (100), a control reminder mechanism is fixedly installed on the top of the base (100), and the control reminder mechanism is electrically connected to the push rod motor (11), the monitoring mechanism and the driving motor (5).

2. The anti-hand squeezing device of the aluminum-plastic packaging machine according to claim 1, characterized in that: The support mechanism comprises a rotating roller (7) fixedly sleeved on a rotating shaft (6); the top of the rotating roller (7) is fixedly connected to two inclined supporting rods (8); a traction roller (102) is rotatably mounted between the two supporting rods (8); and a driving motor (5) is fixedly connected to the front side of the front supporting rod (8).

3. The anti-hand squeezing device of the aluminum-plastic packaging machine according to claim 1, characterized in that: The monitoring mechanism comprises two inclined L-shaped mounting rods (3), the two L-shaped mounting rods (3) being fixedly mounted on the right side of the corresponding support rods (8), and a monitoring camera (4) being fixedly connected to the top inner wall of the L-shaped mounting rod (3).

4. The anti-hand squeezing device of the aluminum-plastic packaging machine according to claim 1, characterized in that: The rotary drive mechanism comprises a gear (9) fixedly sleeved on a rotating shaft (6); a rack (10) is meshed at the bottom of the gear (9); two ends of the rack (10) extend to two sides of a circular mounting frame (1); two sides of the top of the rack (10) are fixedly connected with sliders (14); the sliders (14) are slidably mounted on the top inner wall of the mounting groove (2); and the right end of the output shaft of the push rod motor (11) is fixedly connected to the left end of the rack (10).

5. The anti-hand squeezing device of the aluminum-plastic packaging machine according to claim 3, characterized in that: The control reminder mechanism comprises a PLC controller (12) and an audible and visual alarm (13) fixedly connected to the top of the base (100); the PLC controller (12) is electrically connected to the audible and visual alarm (13), the driving motor (5), the push rod motor (11) and the monitoring camera (4).

6. The anti-hand squeezing device of the aluminum-plastic packaging machine according to claim 3, characterized in that: The right side of the support rod (8) is fixedly connected to a connecting block, and the right side of the connecting block is fixedly connected to the left side of the corresponding L-shaped mounting rod (3).

7. The anti-hand squeezing device of the aluminum-plastic packaging machine according to claim 4, characterized in that: Two T-shaped slide rails (15) are fixedly connected to the top inner wall of the installation groove (2), and a T-shaped slide groove with openings on both sides is provided on the top of the slider (14). The T-shaped slide groove is slidably connected to the corresponding T-shaped slide rails (15), and the circular installation frame (1) is located between the two T-shaped slide rails (15).

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