Push rod protection mechanism, anti-collision device and packaging equipment

Abstract

The utility model relates to a push rod protection mechanism, an anti-collision device and packaging equipment. The push rod protection mechanism is used for protecting a push rod, the push rod is used for pushing feeding, and the push rod protection mechanism comprises a moving assembly and a pushing assembly. The driving part is arranged on one side of the moving assembly and connected with the moving end of the moving assembly; the monitoring assembly is arranged in the moving direction of the mobile end; the monitoring assembly comprises a reset element and a position sensor arranged on the reset element, and the position sensor is used for monitoring the position state of the reset element; the pushing assembly is arranged at the moving end; the pushing assembly is used for extruding the resetting element; and the control element is electrically connected with the position sensor and is used for receiving a signal fed back by the position sensor and controlling the push rod to stop pushing and feeding. The push rod protection mechanism provided by the utility model can be started to run after the stuck materials are removed, the protection mechanism does not need to be reset manually, the operation is convenient, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of paper towel production, and in particular to a push rod protection mechanism, an anti-collision device and a packaging device. Background Art

[0002] In automated production, machines operate at high speeds to ensure efficient production, and the movement speeds of various mechanisms are extremely high. A collision between mechanisms is likely to cause irreversible damage to parts. Therefore, mechanisms with a potential for collision or interference in movement require additional protective mechanisms. For example, while the push rod and the forming gusset on tissue packaging equipment do not interfere with each other in terms of movement, if a material jam occurs during feeding, the push rod will indirectly collide with the forming gusset. If the machine is not stopped in time, the excessive squeezing force will cause damage to the push rod. However, the protective devices currently used in the industry to prevent push rod damage are difficult to operate, and have poor reliability and structural stability, which affects production efficiency. Utility Model Content

[0003] Based on this, it is necessary to provide a push rod protection mechanism, anti-collision device and packaging equipment to address the problems that the current protective device used to prevent push rod damage is inconvenient to operate, has poor reliability and structural stability.

[0004] A push rod protection mechanism is used to protect a push rod, wherein the push rod is used to push and feed materials, and the push rod protection mechanism includes:

[0005] Mobile components;

[0006] A driving member, disposed on one side of the moving assembly and connected to the moving end of the moving assembly;

[0007] A monitoring component is provided in the moving direction of the mobile terminal; the monitoring component includes a reset element and a position sensor provided on the reset element, the position sensor is used to monitor the position state of the reset element;

[0008] a pushing component, disposed at the mobile end; the pushing component is used to squeeze the resetting element; and

[0009] The control element is electrically connected to the position sensor and is used to receive a signal fed back by the position sensor and control the push rod to stop pushing and feeding.

[0010] In one embodiment, the monitoring assembly further includes an adjusting member; the adjusting member is connected to the reset element and is used to adjust the damping force of the reset element.

[0011] In one embodiment, the reset element is a cylinder, and the adjustment member is used to adjust the initial value of the air pressure in the cylinder.

[0012] In one embodiment, the moving assembly includes a guide rail and a slider slidably connected to the guide rail; the guide rail is arranged along the feeding direction of the push rod; and the monitoring assembly is detachably connected to the guide rail.

[0013] In one embodiment, the guide rail is provided with a plurality of first mounting holes, and the plurality of first mounting holes are spaced apart along the length direction of the guide rail; the reset element is provided with a first through hole; the monitoring assembly further includes a first fixing member; the first fixing member includes a first main body, and a first protrusion and a second protrusion respectively connected to the first main body; the first protrusion is inserted into the first through hole, and the second protrusion is inserted into one of the first mounting holes.

[0014] In one embodiment, the push rod protection mechanism further includes a connecting member, which is disposed at the moving end and is detachably connected to the driving member.

[0015] In one embodiment, the pushing assembly includes a second fixing member detachably connected to the connecting member and a pushing member detachably connected to the second fixing member.

[0016] In one embodiment, the connecting member is provided with at least one second mounting hole, and the pushing member is provided with a second through hole; the second fixing member includes a second main body portion, and a third protrusion portion and a fourth protrusion portion respectively connected to the second main body portion; the third protrusion portion is inserted into one of the second mounting holes, and the fourth protrusion portion is inserted into the second through hole.

[0017] An anti-collision device includes a feed channel and two sets of push rod protection mechanisms as described above, the push rod protection mechanisms being disposed on either side of the feed channel. The side of the driving member facing away from the moving assembly faces the feed channel. The push rods are used to push material on the feed channel. The control element is used to control the push rods to stop feeding material when a material jam occurs.

[0018] A packaging device comprises the anti-collision device described above.

[0019] The present application provides a push rod protection mechanism, which is connected to the mobile end of the mobile component by setting a driving member, a monitoring member is set in the moving direction of the mobile end, the monitoring member includes a reset element and a position sensor, the pushing member is set at the mobile end, the control member and the position sensor are electrically connected, when the material is stuck and the push rod continues to push the material forward, the forward extrusion force of the push rod causes the driving member to move, the driving member drives the mobile end and the pushing member to move, so that the pushing member squeezes the reset element, the position sensor detects that the position state of the reset element has changed and outputs a signal, the control member receives the signal, and controls the push rod to stop pushing the material, after the staff removes the stuck material, the extrusion force applied to the driving member is released, the reset element automatically resets, and the machine can be restarted and continued to run. The push rod protection mechanism provided by the present application has a simple structure. Compared with the prior art, the machine can be started and run after the stuck material is removed, without manually resetting the protection mechanism. It is easy to operate, saves time and effort, and is conducive to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the protection device currently used in the industry.

[0021] Figure 2 This is a three-dimensional structural diagram of a push rod protection mechanism provided in this application.

[0022] Figure 3 This is a schematic structural diagram of a connecting rod of a push rod protection mechanism provided in this application without being compressed.

[0023] Figure 4 This is a schematic structural diagram of a connecting rod of a push rod protection mechanism provided in this application when it is subjected to compression.

[0024] Figure 5 A schematic structural diagram of a monitoring component of a push rod protection mechanism provided in this application.

[0025] Figure 6 This is a schematic structural diagram of a driving component of a push rod protection mechanism provided in this application.

[0026] Reference numerals:

[0027] 1. Moving assembly; 11. Guide rail; 113. First mounting hole; 12. Slider; 2. Driving member; 21. Mounting slot; 3. Monitoring assembly; 31. Resetting element; 311. Connecting rod; 312. First through hole; 32. Position sensor; 33. First fixing member; 331. First main body; 332. First protrusion; 333. Second protrusion; 4. Pushing assembly; 41. Pushing member; 42. Second fixing member; 5. Connecting member; 51. Second mounting hole; 6. Steel ball; 7. Spring; 8. Sliding member; 9. Induction switch. DETAILED DESCRIPTION

[0028] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0031] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0034] See also Figure 1 As mentioned in the background technology, the industry currently generally adopts Figure 1 The protective device shown here features a molded gusset plate connected to a slidable slider 8. The bottom of the slider 8 has a semicircular groove, and a corresponding mounting seat is located below the semicircular groove. The mounting seat has a receiving groove opening toward the semicircular groove. Within the receiving groove is a spring 7 and a steel ball 6 that abuts the spring 7. Some of the steel ball 6 protrudes from the receiving groove and becomes trapped within the semicircular groove. When the machine jams, causing the push rod to indirectly impact the molded gusset plate with a force exceeding a certain level, the molded gusset plate drives the slider 8 to move, dislodging the steel ball 6 from the semicircular groove. At this point, the steel ball 6 is pressed into the mounting seat's receiving groove and compresses the spring 7. This process provides a certain buffering effect. As the slider 8 moves, the sensor plate on the slider 8 enters the sensing range of the sensor switch 9, triggering an alarm and an emergency stop, preventing further collisions.

[0035] However, the above protection device has the following problems: when a jam occurs and an alarm is triggered, after the jam is eliminated, it is necessary to manually pull the sliding member 8 to perform a manual reset operation before the machine can be restarted. Moreover, the force of pulling the sliding member 8 is also difficult to control. Excessive reset can easily cause the steel ball 6 to fall off and be lost, affecting the structural stability of the protection device and affecting production efficiency.

[0036] See also Figures 2 to 4In order to solve the above problems, the present application provides a tissue packaging device that can reduce the risk of damage to high-speed moving parts in the device due to collision while achieving efficient production, reduce the frequency of maintenance and replacement of parts, and extend the service life of the equipment. The tissue packaging device includes a conveying device, and a loading device, a film wrapping device, an anti-collision device and a unloading device arranged in sequence along the conveying direction of the conveying device; the loading device is used to convey the tissues to be packaged and the packaging film to the film wrapping device; the film wrapping device is used to wrap the tissues to be packaged in the packaging film; the anti-collision device is used to convey the products output by the film wrapping device to the unloading device; the unloading device is used to convey the finished products that have been packaged to the next processing stage. Among them, the anti-collision device includes a feeding channel and two sets of push rod protection mechanisms, and the two sets of push rod protection mechanisms are respectively arranged on both sides of the feeding channel; the push rod is used to push the material located on the feeding channel; and the control element is used to control the push rod to stop pushing the material when a material jam occurs. When the product on the feeding channel deviates to the left or right or the size of the paper towel is too large, and the push rod continues to push the product forward, the product will collide with the push rod protection mechanism, triggering the push rod to stop pushing the feed and alarm.

[0037] In some embodiments, the push rod protection mechanism used in the anti-collision device of the present application can protect the push rod used to push the feeding, avoid the push rod indirectly colliding with the forming gusset plate when the material is stuck and the machine operation is not stopped in time, and excessive squeezing force causing damage to the push rod, thereby reducing maintenance costs, improving equipment reliability, and ensuring production stability. The push rod protection mechanism may include a moving component 1, a driving member 2, a monitoring component 3, a pushing component 4, a control element (not shown), and an alarm component (not shown); the moving component 1 is arranged on one side of the driving member 2, and the moving end of the moving component 1 is connected to the driving member 2; the side of the driving member 2 facing away from the moving component 1 is toward the feeding channel; the monitoring component 3 is arranged in the moving direction of the moving end and includes a reset element 31 and a position sensor 32, the position sensor 32 being arranged on the reset element 31 for monitoring the position state of the reset element 31; the pushing component 4 is arranged at the moving end for squeezing the reset element 31; the control element is electrically connected to the position sensor 32 for receiving the signal fed back by the position sensor 32 and controlling the push rod to stop pushing the material; at the same time, the control element also transmits the signal to the alarm component, which is used to receive the signal from the control component and issue an alarm signal. In some embodiments, the moving component 1, the driving member 2, the monitoring component 3, and the pushing component 4 can form a material sensing module.

[0038] It can be understood that when material jam occurs, the push rod pushes the material forward and collides with the driving member 2, the driving member 2 is acted upon by an external force, and the driving member 2 drives the moving end and the pushing component 4 to move, and the pushing component 4 pushes the reset element 31 and squeezes the reset element 31, so that the air pressure in the reset element 31 increases or elastic compression occurs and has a tendency to reset. When the position sensor 32 detects the change in the position state of the reset element 31, it outputs a signal, the control component receives the signal and controls the push rod to stop pushing the material. At the same time, the control component also transmits the signal to the alarm component, the alarm component receives the signal and sends an alarm signal. After the staff removes the stuck material, the push rod pushes the material forward and the external force acting on the driving member 2 is released, and the reset element 31 automatically resets. There is no need for the staff to manually reset the protection mechanism, which is easy to operate and saves time and effort.

[0039] In this embodiment, the reset element 31 is a cylinder, and the push assembly 4 pushes the connecting rod 311 of the cylinder, causing the connecting rod 311 to displace and squeeze the gas in the cylinder. When the connecting rod 311 is subjected to force, the connecting rod 311 will squeeze the gas in the cylinder, causing the air pressure in the cylinder to increase; when the force on the connecting rod 311 decreases, for example, when the force on the connecting rod 311 is less than the pressure of the gas in the cylinder on the connecting rod 311, the connecting rod 311 can be reset under the action of the air pressure. The cylinder has an initial value of the air pressure in the cylinder, which refers to the air pressure value when the connecting rod 311 does not apply pressure to the cylinder. When the force applied to the connecting rod 311 is greater than the initial value of the air pressure in the cylinder, the connecting rod 311 is compressed and displaced.

[0040] In some embodiments, the monitoring assembly 3 further includes an adjustment member (not shown); the adjustment member is connected to the reset element 31 and is used to adjust the damping force of the reset element 31. In this embodiment, the reset element 31 is a cylinder, and the adjustment member is connected to the cylinder and is used to adjust the initial value of the air pressure in the cylinder.

[0041] In this embodiment, the regulating member is a pressure regulating valve, through which the initial value of the air pressure in the cylinder can be adjusted. By setting an appropriate initial value of the air pressure in the cylinder, it is possible to prevent the initial value of the air pressure in the cylinder from being too low, causing the connecting rod 311 to be compressed and displaced when slightly stressed, thereby generating false alarms and reducing unnecessary maintenance and downtime. It is also possible to prevent the initial value of the air pressure in the cylinder from being too high, causing the connecting rod 311 to be difficult to be compressed and unable to trigger an alarm, causing the connecting rod 311 to be subjected to excessive extrusion force and causing damage. This improves the stability and reliability of the push rod protection mechanism. This solves the current industry problems such as Figure 1In the protective device shown, the force threshold for triggering the movement of the slider 8 can only be controlled by varying the depth and size of the semicircular groove on the slider 8 and the hardness of the spring 7. This difficulty in controlling the force threshold for triggering the movement of the slider 8 is addressed. In other embodiments, the adjustment member may be any other suitable element capable of adjusting the initial value of the gas pressure in the cylinder.

[0042] In some embodiments, the position sensor 32 includes, but is not limited to, an electronic magnetic ring, an optical sensor, a laser sensor, an inductive sensor, a capacitive sensor, etc. In this embodiment, the position sensor 32 is an electronic magnetic ring, which is mounted on the cylinder and can accurately monitor the displacement of the connecting rod 311. In other embodiments, the position sensor 32 can also be an optical sensor, a laser sensor, etc., which can be mounted on the cylinder via a bracket, and is not limited to this embodiment.

[0043] In some embodiments, the moving assembly 1 includes a guide rail 11 and a slider 12, which is slidably connected to the guide rail 11. The guide rail 11 is arranged along the feed direction of the push rod, that is, the length of the guide rail 11 is aligned with the feed direction of the push rod. When the driving member 2 is subjected to an external force, the driving member 2 can drive the slider 12 to move along the length of the guide rail 11. In other embodiments, the moving assembly 1 can be configured to include a track and rollers or a rack and gear, and is not limited to this.

[0044] Please also refer to Figure 5 In some embodiments, the monitoring assembly 3 is detachably connected to the guide rail 11 to facilitate assembly and disassembly of the push rod protection mechanism. In some embodiments, the guide rail 11 is provided with a plurality of first mounting holes 113, which are spaced apart along the length of the guide rail 11. The reset element 31 is provided with a first through hole 312. The monitoring assembly 3 further includes a first fixing member 33. The first fixing member 33 includes a first main body 331, and a first protrusion 332 and a second protrusion 333 respectively connected to the first main body 331. The first protrusion 332 is inserted into the first through hole 312, and the second protrusion 333 is inserted into one of the first mounting holes 113. This makes the connection between the reset element 31 and the guide rail 11 faster and more convenient. Without the need for other complicated tools and operating steps, the reset element 31 and the guide rail 11 can be quickly installed or disassembled, facilitating daily maintenance and repair. In addition, by opening a plurality of first mounting holes 113 on the guide rail 11 , the staff can flexibly adjust the installation position of the reset element 31 according to actual needs to adapt to different application scenarios, which is highly practical.

[0045] In some embodiments, the push rod protection mechanism further includes a connecting member 5, which is provided at the moving end and is detachably connected to the driving member 2. In some embodiments, the pushing assembly 4 includes a pushing member 41 and a second fixing member 42, the pushing member 41 is detachably connected to the second fixing member 42, and the second fixing member 42 is detachably connected to the connecting member 5. In some embodiments, the connecting member 5 is provided with at least one second mounting hole 51, and the pushing member 41 is provided with at least one second through hole; the second fixing member 42 includes a second main body, and a third protrusion and a fourth protrusion respectively connected to the second main body; the third protrusion is inserted into one of the second mounting holes 51, and the fourth protrusion is inserted into the second through hole, so that the connection between the pushing member 41 and the connecting member 5 is faster and more convenient, without the need for other complicated tools and operating steps, that is, the installation or disassembly of the pushing member 41 and the connecting member 5 can be quickly completed, which is convenient for daily maintenance and inspection.

[0046] In some embodiments, the pusher 41 and the connecting rod 311 are coaxially arranged, that is, the pusher 41 and the connecting rod 311 are arranged on the same axis, and the axes between the pusher 41 and the connecting rod 311 are aligned, which is conducive to improving the force transmission efficiency, thereby improving the reliability of the push rod protection mechanism.

[0047] In some embodiments, a mounting groove 21 is provided on one side of the driving member 2 to facilitate detachable connection of the push rod protection mechanism with the external structure.

[0048] When material jams, the push rod continues to push the material forward. The forward squeezing force of the push rod causes the driver 2 to move, thereby driving the moving end and the push assembly 4 to move. The push member 41 moves and pushes the connecting rod 311. When the force acting on the connecting rod 311 is greater than the initial value of the air pressure in the cylinder, the connecting rod 311 is compressed and displaced. The position sensor 32 detects the displacement of the connecting rod 311 and outputs a signal. The control component receives the signal and controls the push rod to stop pushing the material forward to prevent further damage caused by the push rod. At the same time, the control component also transmits the signal to the alarm component, which receives the signal and issues an alarm signal to alert the staff to intervene. When the staff removes the jammed material, the external force acting on the driver 2 is released, and the force on the connecting rod 311 is reduced. When the force acting on the connecting rod 311 is less than the initial value of the air pressure in the cylinder, the connecting rod 311 can automatically reset. At this time, the machine can be restarted, and it can continue to operate and resume feeding. The push rod protection mechanism provided in this application has a simple structure and is easy to assemble. Once the stuck material is removed, the machine can be started and operated without manually resetting the protection mechanism, making operation convenient, time-saving, and labor-saving, thereby improving production efficiency. Furthermore, the initial value of the air pressure in the cylinder can be adjusted via a pressure regulating valve, thereby improving the stability and reliability of the push rod protection mechanism and facilitating operation. This solves the problem of difficulty in controlling the force threshold required to trigger the movement of the slider 8.

[0049] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A push rod protection mechanism for protecting a push rod used for pushing and feeding materials, characterized in that: The push rod protection mechanism includes: Mobile components; A driving member, disposed on one side of the moving assembly and connected to the moving end of the moving assembly; A monitoring component is provided in the moving direction of the mobile terminal; the monitoring component includes a reset element and a position sensor provided on the reset element, the position sensor is used to monitor the position state of the reset element; a pushing component, disposed at the mobile end; the pushing component is used to squeeze the resetting element; and The control element is electrically connected to the position sensor and is used to receive a signal fed back by the position sensor and control the push rod to stop pushing and feeding.

2. The push rod protection mechanism according to claim 1, characterized in that: The monitoring assembly further includes an adjusting member; the adjusting member is connected to the reset element and is used to adjust the damping force of the reset element.

3. The push rod protection mechanism according to claim 2, characterized in that: The reset element is a cylinder, and the adjustment member is used to adjust the initial value of the air pressure in the cylinder.

4. The push rod protection mechanism according to claim 1, characterized in that: The moving assembly includes a guide rail and a slider slidably connected to the guide rail; the guide rail is arranged along the feeding direction of the push rod; and the monitoring assembly is detachably connected to the guide rail.

5. The push rod protection mechanism according to claim 4, characterized in that: The guide rail is provided with a plurality of first mounting holes, and the plurality of first mounting holes are spaced apart along the length direction of the guide rail; the reset element is provided with a first through hole; the monitoring assembly also includes a first fixing member; the first fixing member includes a first main body, and a first protrusion and a second protrusion respectively connected to the first main body; the first protrusion is inserted into the first through hole, and the second protrusion is inserted into one of the first mounting holes.

6. The push rod protection mechanism according to claim 1, characterized in that: The push rod protection mechanism further includes a connecting member, which is arranged at the moving end and is detachably connected to the driving member.

7. The push rod protection mechanism according to claim 6, characterized in that: The pushing assembly includes a second fixing member detachably connected to the connecting member and a pushing member detachably connected to the second fixing member.

8. The push rod protection mechanism according to claim 7, characterized in that: The connecting member is provided with at least one second mounting hole, and the pushing member is provided with a second through hole; the second fixing member includes a second main body portion, and a third protrusion portion and a fourth protrusion portion respectively connected to the second main body portion; the third protrusion portion is inserted into one of the second mounting holes, and the fourth protrusion portion is inserted into the second through hole.

9. An anti-collision device, characterized in that: It comprises a feeding channel and two groups of push rod protection mechanisms as described in any one of claims 1 to 8, wherein the push rod protection mechanisms are respectively arranged on both sides of the feeding channel; the side of the driving member facing away from the moving component is toward the feeding channel; the push rod is used to push the material located on the feeding channel; the control element is used to control the push rod to stop pushing the material when material jam occurs.

10. A packaging device, characterized in that: Comprising the anti-collision device as claimed in claim 9.

Images