Door locking device of tobacco baling machine

Abstract

The utility model relates to a tobacco baling machine case door locking device which comprises a baling machine body, a lock component, a closing detection assembly and a baling machine driving body, the baling machine body is provided with a mounting cavity, the mounting cavity is provided with an upper opening and a side opening, an opening and closing door is arranged at the side opening, and the lock component is arranged on the side walls of the opening and closing door and the side opening. The closing detection assembly comprises a distance sensor, a mounting groove is formed in the position, corresponding to the side wall of the opening and closing door, of the side wall of the opening, the distance sensor is mounted in the mounting groove, when the distance sensor does not detect the opening and closing door, the packer driving body is powered off, and when the distance sensor cannot sense the opening and closing door, the packer driving body is powered off. The safety of operators is improved, the use specifications of the operators are standardized, and safety accidents are avoided to the greatest extent.

Description

Technical Field

[0001] This utility model belongs to the technical field of tea packaging equipment, specifically relating to a door locking device for a tobacco leaf packaging machine. Background Technology

[0002] A tobacco baler is a packaging machine used in the tobacco leaf purchasing process. It integrates manual movement, manual packing, electronic weighing, and hydraulic forming packaging, offering advantages such as energy saving, labor saving, safety, environmental protection, and ease of operation. The tobacco baler reduces the labor intensity of baling personnel and improves baling efficiency, and is widely used in tobacco purchasing stations throughout Yunnan. The operating steps for a tobacco baler are as follows: 1. Raise the pressure head of the tobacco baler to its highest position and zero the weighing display. 2. Lay burlap and rope inside the bale box, and fill it with tobacco leaves to the specified weight. 3. Close the bale box door tightly; the pressure head will lower and hydraulically form the tobacco leaves. 4. Remove the tobacco bale and sew it up. The entire baling process can be completed by only two people working together; with practice, efficiency can be greatly improved.

[0003] While tobacco baling machines significantly improve efficiency, certain safety hazards remain during the baling process: First, some operators, in pursuit of efficiency, lower the pressure head before all four doors of the baling machine are fully closed; second, adding tobacco leaves during the descent of the pressure head poses a safety risk; and third, the single emergency stop switch hinders emergency stop functionality. Injuries have occurred in some areas due to the descent of the pressure head from tobacco baling machines. Therefore, this solution was developed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a door locking device for a tobacco baler that can cut off the power to the baler drive body when the door is open.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a door locking device for a tobacco baling machine, comprising a baling machine body, a locking component, a closure detection component, and a baling machine drive body. The baling machine body has an installation cavity with an upper opening and a side opening. A switch door is provided at the side opening. The locking component is provided on the side wall of the switch door and the side opening. The closure detection component includes a distance sensor. An installation groove is provided at a position corresponding to the side wall of the opening and the side wall of the switch door. The distance sensor is installed in the installation groove. When the distance sensor does not detect the switch door, the baling machine drive body is de-energized.

[0006] Furthermore, the outer side of the main body of the packing machine is provided with a hinge sleeve, the hinge sleeve is near the side opening, the outer side of the switch door is provided with an extension plate, the upper surface of the end of the extension plate is provided with a rotating shaft, and the rotating shaft extends into the hinge sleeve for hinge.

[0007] The distance sensor is two in number and is arranged on the two side walls of the side opening.

[0008] Further, the switch door is two in number and is arranged vertically, and the distance sensor is four in number.

[0009] Further, the distance sensor comprises a sensor body and a magnetic sleeve, the magnetic sleeve is sleeved outside the sensor body, the side wall of the mounting groove is made of magnetic material, the magnetic sleeve extends into the mounting groove and is adsorbed, and the sensor body shell is made of magnetic material.

[0010] Further, the sensor body is a photoelectric switch.

[0011] Further, the distance sensor further comprises a proximity switch, the proximity switch is arranged at the bottom of the inner ring of the magnetic sleeve and the sensing end faces the sensor body, the sensor body is mounted in the magnetic sleeve and the bottom is in contact with the sensing end of the proximity switch.

[0012] Further, a wire hole is formed in the side wall close to the bottom of the magnetic sleeve.

[0013] Further, a limiting notch is formed in the inner ring of the magnetic sleeve, the limiting notch has an upper opening and an inner ring opening, a limiting clamping block is arranged on the outer side of the peripheral surface of the sensor body, and the limiting clamping block extends into the limiting notch.

[0014] Further, the lock member comprises a claw-shaped hook plate and a connecting column, a groove is formed in the side wall close to one side of the side opening of the baling press main body, one end of the claw-shaped hook plate extends into the groove and is hinged with the side wall of the groove, a torsional spring is arranged at the hinge, a lock hole is arranged on the lower surface of the claw-shaped hook plate, and the connecting column is arranged on the side wall of the switch door and is matched with the lock hole.

[0015] Further, a moving wheel is arranged on the lower surface of the baling press main body.

[0016] Compared with the prior art, the baling press box door locking device has the following beneficial effects:

[0017] The distance sensor is arranged at the position corresponding to the side wall of the switch door at the side opening of the mounting cavity, when the distance sensor cannot sense the existence of the switch door, the baling press driving main body is powered off, the safety of the operator is improved, the use specification of the operator is standardized, and the occurrence of safety accidents is avoided to the greatest extent. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the baling press box door locking device.

[0019] Figure 2 It is another angle of the three-dimensional structure schematic view of the utility model;

[0020] Figure 3 It is another angle of the three-dimensional structure schematic view of the utility model; Figure 2 It is the partial enlarged structure schematic view of A in the utility model;

[0021] Figure 4 It is the three-dimensional schematic view of the utility model hiding the switch door;

[0022] Figure 5 It is the front view structure schematic view of the claw-shaped hook plate in the utility model;

[0023] Figure 6 It is the sectional structure schematic view of the sensor body installation position in the utility model;

[0024] Figure 7 It is the front view structure schematic view of the sensor body in the utility model;

[0025] Figure 8 It is the electrical schematic diagram of the photoelectric switch in the utility model.

[0026] Marked in the figure: 1, packing machine main body;11, installation cavity;12, upper opening;13, side opening;14, hinged sleeve;15, switch door;151, extension plate;152, pivot;2, lock member;21, claw-shaped hook plate;211, lock hole;22, connecting column;3, sensor body;31, limit block;4, magnetic sleeve;41, limit gap;42, wire hole;5, proximity switch. DETAILED DESCRIPTION

[0027] In order to let the above-mentioned features and advantages of the utility model more obvious and easy to understand, the following specific examples are raised, and cooperate with the drawings, and make detailed description as follows.

[0028] As Figures 1-8 Indicated, the embodiment provides a kind of tobacco packing machine box door locking device, including packing machine main body 1, lock member 2, closure detection assembly and packing machine drive main body.

[0029] As Figures 1-2 And Figure 4As shown, the lower surface of the packer body 1 is provided with a moving wheel, the front and back of the packer body 1 are provided with an emergency stop switch, the packer body 1 has a mounting cavity 11, the mounting cavity 11 is provided with a packing assembly, the packer driving body is used for driving the packing assembly to operate, the mounting cavity 11 has an upper opening 12 and a side opening 13, the side opening 13 is provided with a switch door 15, the number of switch doors 15 is two and they are arranged above and below, specifically, the outer side of the packer body 1 is provided with a hinged sleeve 14, the hinged sleeve 14 is close to the side opening 13, the outer side of the switch door 15 is provided with an extension plate 151, the upper surface of the end of the extension plate 151 is provided with a rotating shaft 152, the rotating shaft 152 extends into the hinged sleeve 14 for hinging.

[0030] As shown in the figure, Figure 3 The lock member 2 is arranged on the side wall of the switch door 15 and the side opening 13, specifically, the lock member 2 comprises a claw-shaped hook plate 21 and a connecting column 22, a recess is formed on the side wall of the packer body 1 close to the side opening 13, one end of the claw-shaped hook plate 21 extends into the recess and is hinged with the side wall of the recess, and a torsional spring is arranged at the hinged position, the claw-shaped hook plate 21 is arranged obliquely, the lower surface of the claw-shaped hook plate 21 is provided with a lock hole 211, the connecting column 22 is arranged on the side wall of the switch door 15, and the connecting column 22 is matched with the lock hole 211, when the switch door 15 is closed, the switch door 15 abuts against the curved surface of the claw-shaped hook plate 21, the claw-shaped hook plate 21 is deflected upward, until the connecting column 22 is matched with the lock hole 211, and then the claw-shaped hook plate 21 is reset to limit the switch door 15.

[0031] As shown in the figure, Figures 6-7 The closing detection assembly comprises a distance sensor, an installation groove is arranged on the position corresponding to the side wall of the switch door 15 of the opening, the distance sensor is installed in the installation groove, and the packer driving body is powered off when the distance sensor does not detect the switch door 15, specifically, the number of distance sensors is four, and every two distance sensors are arranged on the side walls of the side opening 13 and correspond to one switch door 15 respectively.

[0032] The distance sensor comprises a sensor body 3, a magnetic sleeve 4 and a proximity switch 5, the sensor body 3 can adopt a press-type sensor, an infrared distance sensor or a photoelectric switch, and in this scheme, a photoelectric switch is adopted, the magnetic sleeve 4 is sleeved outside the sensor body 3, the side wall of the installation groove is made of magnetic material, the magnetic sleeve 4 extends into the installation groove and is adsorbed, and the shell of the sensor body 3 is made of magnetic material, so that the distance sensor is fixed by magnetic attraction, which is faster and has high connection strength.

[0033] Preferably, the proximity switch 5 is arranged at the bottom of the inner ring of the magnetic sleeve 4 and the sensing end faces the sensor body 3, which is installed in the magnetic sleeve 4 and the bottom is in contact with the sensing end of the proximity switch 5. After a long running time, the magnetic sleeve 4 will be demagnetized, resulting in unstable connection of the sensor body 3. During normal operation of the machine, the sensor body 3 will move outward due to vibration, which will affect the normal operation. Therefore, by arranging the proximity switch 5 at the bottom of the magnetic sleeve 4, once the sensor body 3 moves outward, the proximity switch 5 cannot sense the sensor body 3, the baling machine driving body stops immediately, and the machine sends a warning.

[0034] Preferably, the magnetic sleeve 4 has a wire hole 42 formed on the side wall near the bottom, the inner ring of the magnetic sleeve 4 is provided with a limiting notch 41, the limiting notch 41 has an upper opening 12 and an inner ring opening, and the limiting block 31 is arranged on the outer side of the circumferential surface of the sensor body 3, the limiting block 31 extends into the limiting notch 41. The limiting block 31 is arranged to facilitate the rotation adjustment of the power line of the photoelectric switch when the power line extends out of the wire hole 42, and the limiting block 31 is arranged to limit the distance of the sensor body 3 extending into the magnetic sleeve 4.

[0035] The scheme adopts photoelectric sensing technology, photoelectric switches are arranged on both sides of the two switch doors 15 of the baling machine body, which are used to detect the position state of the four doors of the tobacco baling machine, so as to determine the running action of the equipment. As long as any one of the doors is not tightly closed, the tobacco baling machine cannot perform the lowering action (the rising operation process is not affected), if the tobacco baling machine is in the process of descending, one of the four doors is opened or popped up, the tobacco baling machine will immediately stop the descending action. (The rising process is not affected) The whole pressure protection system is suitable for different manufacturers and different models. The whole pressure protection system is provided with a cancel function, which can cancel the pressure protection function by pressing the cancel button. In the case of maintenance or special circumstances, it does not affect the lifting of the equipment. After resetting the cancel button, the pressure protection function is restored, which is very convenient.

[0036] As shown in Figure 8 The two switch doors 15 of the baling machine body are each provided with a photoelectric switch, and two control relays are additionally arranged in the control circuit. When one of the four doors of the baling machine is not tightly closed, the photoelectric switches detect it and cut off the coil voltage of the two control relays, so that the auxiliary contact of the control relay is disconnected to cut off the control power supply of the baling machine driving body, so that the baling machine stops working and cannot perform the lowering action. When the four doors are tightly closed at the same time, the baling machine can be reset to continue the lowering action of the pressure head.

[0037] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and the skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application, and the scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A locking device for the door of a tobacco leaf baler, characterized in that: The device includes a main body of a packing machine, a locking component, a closure detection assembly, and a drive body of a packing machine. The main body of the packing machine has a mounting cavity with an upper opening and a side opening. A switch door is provided at the side opening. The locking component is provided on the side wall of the switch door and the side opening. The closure detection assembly includes a distance sensor. A mounting groove is provided at a position corresponding to the side wall of the opening and the side wall of the switch door. The distance sensor is installed in the mounting groove. When the distance sensor does not detect the switch door, the drive body of the packing machine is powered off.

2. The locking device for the door of a tobacco leaf baler according to claim 1, characterized in that: The main body of the packing machine is provided with a hinge sleeve on the outward side, the hinge sleeve is near the side opening, the opening and closing door is provided with an extension plate on the outward side, and a rotating shaft is provided on the upper surface of the end of the extension plate, the rotating shaft extends into the hinge sleeve for hinge. The distance sensor is two in number, and the two distance sensors are set on the two side walls of the side opening.

3. The locking device for the door of a tobacco baler according to claim 2, characterized in that: The number of doors to be opened and closed is two, and they are set at the top and bottom. The number of distance sensors is four.

4. The locking device for the door of a tobacco baler according to claim 1, characterized in that: The distance sensor includes a sensor body and a magnetic sleeve. The magnetic sleeve is fitted on the outside of the sensor body. The sidewall of the mounting groove is made of a magnetic material. The magnetic sleeve extends into the mounting groove and is attracted. The outer shell of the sensor body is made of a magnetic material.

5. The locking device for the door of a tobacco baler according to claim 4, characterized in that: The sensor body is a photoelectric switch.

6. The locking device for the door of a tobacco baler according to claim 4, characterized in that: The distance sensor also includes a proximity switch, which is located at the bottom of the inner ring of the magnetic sleeve with its sensing end facing the sensor body. The sensor body is installed inside the magnetic sleeve with its bottom in contact with the sensing end of the proximity switch.

7. The door locking device of a tobacco leaf baler according to claim 4, characterized in that: A wire hole is formed on the side wall near the bottom of the magnetic sleeve.

8. The locking device for the door of a tobacco baler according to claim 7, characterized in that: The inner ring of the magnetic sleeve has a limiting notch, which has an upper opening and an inner ring opening. A limiting block is provided on the outer side of the peripheral surface of the sensor body, and the limiting block extends into the limiting notch.

9. The locking device for the door of a tobacco baler according to claim 1, characterized in that: The locking component includes a claw-shaped hook plate and a connecting post. A groove is provided on the side wall of the main body of the packaging machine near the side opening. One end of the claw-shaped hook plate extends into the groove and is hinged to the side wall of the groove, and a torsion spring is provided at the hinge. A lock hole is provided on the lower surface of the claw-shaped hook plate. The connecting post is provided on the side wall of the opening and closing door, and the connecting post is adapted to the lock hole.

10. A door locking device for a tobacco leaf baler according to claim 1, characterized in that: The lower surface of the main body of the packing machine is equipped with casters.

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