Automatic positioning device for pressure head traction steel wire rope of off-line formula workshop tobacco pressing equipment
By introducing an automatic positioning device into the smoke-pressing equipment, and using a contactor and PLC controller combined with a position sensor and a reset spring, the problem of wire rope entanglement caused by the pressure head not stopping in time was solved, achieving stable traction of the wire rope and improving production efficiency.
Patent Information
- Application Number
- CN202423070018.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-12
AI Technical Summary
In existing smoke-pressing equipment, the winch wire rope does not stop in time after the pressure head reaches the designated position, causing the wire rope to become too loose and tangled, which affects the production process.
An automatic positioning device, including a contactor, PLC controller, position sensor and reset spring, is used to control the winch motor to stop by detecting changes in the position of the pressure head, ensuring that the wire rope is always taut and avoiding tangling.
This effectively prevents the wire rope from becoming excessively loose and tangled, ensuring production continuity and improving the operational stability of the equipment.
Smart Images
Figure CN223585239U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tobacco leaf redrying equipment, in particular to a kind of automatic positioning device for the pressure head traction steel wire rope of offline formula workshop pressure tobacco equipment. BACKGROUND
[0002] Offline formula workshop needs to frame after putting tobacco leaf when carrying out tobacco leaf threshing, during framing, because different tobacco grades are not one, and the size of tobacco frame is fixed, in order to make the weight of framing consistent, pressure tobacco equipment is needed to compact tobacco in framing, to meet the weight of framing.
[0003] The lifting of the pressure head of the existing pressure tobacco equipment is realized by the traction of the steel wire rope connected with the winch, and it is found in the production process that if the winch is not stopped in time after the pressure head reaches the specified position, the steel wire rope will be too loose and wound, causing the failure of the pressure tobacco equipment and affecting the production process. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model aims at providing an automatic positioning device for the pressure head traction steel wire rope of offline formula workshop pressure tobacco equipment to solve the technical problem that the pressure head of the pressure tobacco equipment reaches the specified position under the traction of the winch steel wire rope, and the winch is not stopped in time, and the steel wire rope is too loose and wound.
[0005] The utility model aims at realizing the following technical scheme:
[0006] The automatic positioning device for the pressure head traction steel wire rope of offline formula workshop pressure tobacco equipment comprises a contactor and a PLC controller electrically connected with the motor of the winch, the contactor is electrically connected with the PLC controller, it further comprises a fixedly arranged mounting frame, a sleeve is fixedly arranged on the mounting frame, a stroke rod is slidably arranged in the sleeve, one end of the stroke rod is fixedly connected with a fixed pulley, and the other end is provided with a position sensor opposite thereto, a relay is further arranged on the mounting frame, the position sensor is electrically connected with the relay, the relay is electrically connected with the PLC controller, and the hanging section of the steel wire rope is wound on the disc of the fixed pulley.
[0007] Further, the reset spring is sleeved on the stroke rod.
[0008] Further, the hanging section of the steel wire rope is wound on the side of the disc of the fixed pulley away from the stroke rod, the reset spring is a compression spring, and the compression spring is located between the pulley and the sleeve.
[0009] Further, the other end of the stroke rod is located outside the sleeve and is provided with a limiting protrusion thereon. Further, the other end of the stroke rod is located outside the sleeve and is provided with a limiting protrusion thereon.
[0010] Further, the overhanging section of the steel wire is wound on the disc of the fixed pulley away from the side of the stroke rod, the reset spring is a tensile spring, the tensile spring is located between the sleeve and the limiting protrusion, and two ends of the tensile spring are connected with the sleeve and the limiting protrusion respectively.
[0011] Further, the overhanging section of the steel wire is wound on the disc of the fixed pulley away from the side of the stroke rod, the reset spring is a tensile spring, the tensile spring is located between the sleeve and the limiting protrusion, and two ends of the tensile spring are connected with the sleeve and the limiting protrusion respectively.
[0012] Further, the overhanging section of the steel wire is wound on the disc of the fixed pulley away from the side of the stroke rod, the reset spring is a tensile spring, the tensile spring is located between the sleeve and the limiting protrusion, and two ends of the tensile spring are connected with the sleeve and the limiting protrusion respectively.
[0013] The beneficial effects of the utility model are:
[0014] The automatic positioning device for the pressure head traction steel wire of the off-line formula workshop tobacco pressing equipment, in the process that the steel wire traction pressure head is lifted, the steel wire is taut, the taut steel wire acts on the fixed pulley, the fixed pulley deforms the reset spring, after the pressure head is in place, the steel wire is relaxed, the force acting on the fixed pulley is reduced, the reset spring resets, the position sensor detects the position change signal and transmits the signal to the normally closed relay, the normally closed relay is disconnected, the signal is transmitted to the PLC controller, the PLC controller controls the contactor electrically connected with the hoist motor to be powered off, the hoist motor stops working, the hoist stops working, and thus the steel wire is prevented from being wound due to being too relaxed.
[0015] Other advantages, objects and features of the utility model will be set forth in the following description, and to some extent, it will be obvious to those skilled in the art based on the study of the following or can be taught from the practice of the utility model. The objects and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be further described in detail below with reference to the drawings, wherein:
[0017] Figure 1 It is a perspective view of the utility model embodiment one.
[0018] Figure 2 It is another perspective view of the utility model embodiment one.
[0019] Figure 3 It is a use state diagram of the utility model embodiment one.
[0020] Figure 4 This is a usage diagram of Embodiment 2 of this utility model.
[0021] Figure 5 This is a usage diagram of Embodiment 3 of this utility model.
[0022] Figure 6 This is a usage state diagram of Embodiment 4 of this utility model.
[0023] In the diagram: 1. Mounting bracket; 2. Wire rope; 3. Cylinder; 4. Travel rod; 5. Fixed pulley; 6. Position sensor; 7. Relay; 8. Compression spring; 9. Limiting protrusion; 10. Tension spring. Detailed Implementation
[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.
[0025] Example 1
[0026] like Figures 1-6 As shown, the automatic positioning device for the traction steel wire rope of the offline formula workshop smoke pressing equipment includes a contactor and a PLC controller electrically connected to the winch motor. The contactor and the PLC controller are electrically connected. It also includes a mounting frame 1, which is formed by vertically connecting a first mounting plate and a second mounting plate. The mounting frame 1 is fixed to an object near the suspended section of the steel wire rope 2, such as a wall. A cylinder 3 is welded to the inner side of the mounting frame along its length. A stroke rod 4 is slidably installed inside the cylinder 3. Both ends of the stroke rod 4 are located outside the cylinder 3. One end of the stroke rod 4 is connected to a fixed pulley 5, which includes a U-shaped frame. A central shaft is connected between the two ends of the U-shaped frame. A disc is connected to the central shaft through a bearing. The disc has a limit groove around its circumference. The other end of the stroke rod 4 is equipped with a position sensor 6 opposite to its end face. The position sensor 6 is a proximity switch or a limit switch. The mounting frame 1 also contains a normally closed relay 7, which is an intermediate relay. The position sensor 6 is electrically connected to the normally closed relay 7, and the relay 7 is electrically connected to the PLC controller.
[0027] The suspended section of the wire rope 2 is wound around the disc of the fixed pulley 5 on the side away from the travel rod 4. A compression spring 8 is sleeved on the travel rod 4 between the fixed pulley 5 and the sleeve 3. A limiting protrusion 9 is provided at the other end of the travel rod 4.
[0028] During the lifting and lowering of the pressure head by the wire rope 2, the wire rope 2 is taut on the fixed pulley 5. Figure 3When the pressure head is in place, the steel wire rope 2 is relaxed, the force acting on the fixed pulley 5 is reduced, the compression spring 8 is reset, the position sensor 6 detects the position change signal and transmits it to the normally closed relay 7, the normally closed relay 7 is disconnected and transmits the signal to the PLC controller, the PLC controller controls the contactor to be powered off, and then the winch motor is stopped, so that the winch is stopped. The device keeps the steel wire rope 2 in tension at all times, avoiding excessive relaxation of the winding.
[0029] Example Two
[0030] On the basis of Example One, the overhanging section of the steel wire rope 2 is wound on the disc of the fixed pulley 5 away from the stroke rod, a limiting protrusion 9 is arranged at the other end of the stroke rod 4, and a tensile spring 10 is arranged on the stroke rod 4 between the limiting protrusion 9 and the sleeve 3, with the two ends of the tensile spring 10 connected to the limiting protrusion 9 and the sleeve 3 respectively.
[0031] In the process of lifting the pressure head by the steel wire rope 2, the steel wire rope 2 is taut and acts on the fixed pulley 5 (the direction of the middle arrow), and the tensile spring 10 is in a stretched state. Figure 4 When the pressure head is in place, the steel wire rope 2 is relaxed, the force acting on the fixed pulley 5 is reduced, the tensile spring 10 is reset, the position sensor 6 detects the position change signal and transmits it to the normally closed relay 7, the normally closed relay 7 is disconnected and transmits the signal to the PLC controller, the PLC controller controls the contactor to be powered off, and then the winch motor is stopped, so that the winch is stopped. The device keeps the steel wire rope 2 in tension at all times, avoiding excessive relaxation of the winding.
[0032] Example Three
[0033] On the basis of Example One, the overhanging section of the steel wire rope 2 is wound on the disc of the fixed pulley 5 away from the stroke rod, a limiting protrusion 9 is arranged at the other end of the stroke rod 4, and a tensile spring 10 is arranged on the stroke rod 4 between the limiting protrusion 9 and the sleeve 3, with the two ends of the tensile spring 10 connected to the limiting protrusion 9 and the sleeve 3 respectively.
[0034] In the process of lifting the pressure head by the steel wire rope 2, the steel wire rope 2 is taut and acts on the fixed pulley 5 (the direction of the middle arrow), and the tensile spring 10 is in a stretched state. Figure 5 When the pressure head is in place, the steel wire rope 2 is relaxed, the force acting on the fixed pulley 5 is reduced, the tensile spring 10 is reset, the position sensor 6 detects the position change signal and transmits it to the normally closed relay 7, the normally closed relay 7 is disconnected and transmits the signal to the PLC controller, the PLC controller controls the contactor to be powered off, and then the winch motor is stopped, so that the winch is stopped. The device keeps the steel wire rope 2 in tension at all times, avoiding excessive relaxation of the winding.
[0035] Example Four
[0036] On the basis of the embodiment one, the overhanging section of the steel wire rope 2 is wound on the disc of the fixed pulley 5 close to one side of the stroke rod 4, and the tensile spring 10 is sleeved on the stroke rod 4 between the fixed pulley 5 and the sleeve 3, and the two ends of the tensile spring 10 are connected with the fixed pulley 5 and the sleeve 3 respectively.
[0037] In the process of the steel wire rope 2 pulling the lifting of the pressure head, the steel wire rope 2 is taut on the fixed pulley 5 (the arrow direction), and the tensile spring 10 is in the tensile state, when the pressure head is in place, the steel wire rope 2 is relaxed, the force acting on the fixed pulley 5 is reduced, the tensile spring 10 is reset, the position sensor 6 detects the position change signal and transmits it to the normally closed relay 7, the normally closed relay 7 is disconnected and transmits the signal to the PLC controller, the PLC controller controls the contactor to be powered off, and then the winch motor is stopped, so that the winch is stopped, the device makes the steel wire rope 2 always in the stressed state, and avoids too loose winding. Figure 6
[0038] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. An automatic positioning device for the traction steel wire rope of the pressure head of the offline formulation workshop smoke pressing equipment, comprising a contactor electrically connected to the winch motor and a PLC controller, wherein the contactor is electrically connected to the PLC controller, characterized in that: It also includes a fixed mounting bracket (1), on which a sleeve (3) is fixedly mounted. A travel rod (4) is slidably mounted inside the sleeve (3). One end of the travel rod (4) is fixedly connected to a fixed pulley (5), and the other end is provided with a position sensor (6) opposite to its end face. A relay (7) is also provided on the mounting bracket (1). The position sensor (6) is electrically connected to the relay (7). The relay (7) is electrically connected to the PLC controller. The suspended section of the wire rope (2) is wound on the disc of the fixed pulley (5). A return spring is provided between the fixed pulley (5) and the sleeve (3). Alternatively, the other end of the travel rod (4) is located outside the sleeve (3) and is provided with a limiting protrusion (9). A return spring is provided between the sleeve (3) and the limiting protrusion (9).
2. The automatic positioning device for the traction steel wire rope of the pressure head of the offline formulation workshop smoke pressing equipment according to claim 1, characterized in that: The return spring is sleeved on the travel rod (4).
3. The automatic positioning device for the pressure head traction steel wire rope of the offline formulation workshop smoke pressing equipment according to claim 2, characterized in that: The suspended section of the wire rope (2) is wound on the disc of the fixed pulley (5) on the side away from the travel rod (4), and the return spring is a compression spring (8) located between the pulley (5) and the sleeve (3).
4. The automatic positioning device for the traction steel wire rope of the pressure head of the offline formulation workshop smoke pressing equipment according to claim 3, characterized in that: The other end of the travel rod (4) is located outside the sleeve (3) and is provided with a limiting protrusion (9).
5. The automatic positioning device for the traction steel wire rope of the offline formulation workshop smoke pressing equipment according to claim 2, characterized in that: The suspended section of the wire rope (2) is wound on the disc of the fixed pulley (5) on the side away from the travel rod (4). The return spring is a tension spring (10). The tension spring (10) is located between the sleeve (3) and the limiting protrusion (9). The two ends of the tension spring (10) are respectively connected to the sleeve (3) and the limiting protrusion (9).
6. The automatic positioning device for the traction steel wire rope of the pressure head of the offline formulation workshop smoke pressing equipment according to claim 2, characterized in that: The suspended section of the wire rope (2) is wound on the disc of the fixed pulley (5) near the side of the stroke rod (4). The return spring is a compression spring (8), which is located between the sleeve (3) and the limiting protrusion (9).
7. The automatic positioning device for the traction steel wire rope of the pressure head of the offline formulation workshop smoke pressing equipment according to claim 2, characterized in that: The suspended section of the wire rope (2) is wound on the disc of the fixed pulley (5) near the side of the stroke rod (4). The return spring is a tension spring (10). The tension spring (10) is located between the fixed pulley (5) and the sleeve (3). The two ends of the tension spring (10) are respectively connected to the fixed pulley (5) and the sleeve (3).