Detection device

Abstract

The utility model provides a detection device which comprises a guide rail, a detection mechanism and a push rod, the guide rail extends along a first direction, a filter stick can be placed in the guide rail, and the axial direction of the filter stick is parallel to the first direction; the detection mechanism is arranged on the guide rail and is used for detecting whether the filter stick is qualified or not; one end, close to the detection mechanism, of the push rod is provided with a push head part, and the push rod can drive the push head part to move in the first direction so as to push the filter stick to move to the detection mechanism along the guide rail; the pushing head part comprises a connecting section and a pushing head which are sequentially arranged in the first direction, the diameter of the connecting section is smaller than that of the pushing head, and the pushing head can make contact with the end face of the filter stick. According to the detection device provided by the utility model, the starting end of the end part of the filter stick can be accurately identified, and the waveform of the filter stick part can be conveniently intercepted, so that the detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette detection, in particular to a detection device. Background Art

[0002] Currently, microwave detectors are primarily used to detect quality defects in popping bead filter rods. Microwave detectors primarily consist of a push rod and a microwave resonant cavity, which generates a microwave electromagnetic field. The microwave detector works by using the push rod to push the popping bead filter rod through the microwave resonant cavity. Passing through the microwave resonant cavity, the popping beads cause changes in the energy parameters within the microwave electromagnetic field. Since the popping beads are evenly spaced and implanted in the filter rod, qualified popping beads will cause the microwave electromagnetic field energy parameters to exhibit a regular waveform change when passing through the microwave resonant cavity. When the popping beads are missing, damaged, or offset, the changes in the microwave electromagnetic field energy parameters will not conform to the normal waveform. The detector determines whether the popping bead filter rod has quality defects by analyzing the waveform.

[0003] In addition, microwave detectors can also detect the length of the filter rod and whether the bursting bead is located in the set position in the filter rod by analyzing the waveform generated by the filter rod. However, current microwave detectors often have the problem of inaccurate detection results. Utility Model Content

[0004] The purpose of the present invention is to solve the technical problem of inaccurate detection results of current microwave detectors. The present invention provides a detection device that can accurately identify the starting end of the filter rod end, facilitates interception of the waveform of the filter rod portion, and thus improves detection accuracy.

[0005] In order to solve the above technical problems, the inventor discovered through exploration that when the push rod pushes the filter rod through the microwave resonant cavity, the push rod will also cause the energy parameters of the microwave electromagnetic field to change, and the waveform generated by the push rod is relatively similar to the waveform generated at the end of the filter rod. Therefore, it is difficult for the microwave detector to identify the starting end of the filter rod, which makes it difficult to intercept the waveform of the filter rod part, affecting the detection results.

[0006] The embodiment of the present utility model provides a detection device for detecting a filter rod, the detection device comprising:

[0007] The guide rail extends along a first direction, and the filter rod can be placed in the guide rail, with the axial direction of the filter rod parallel to the first direction;

[0008] The detection mechanism is arranged on the guide rail and is used to detect whether the filter rod is qualified;

[0009] The push rod is arranged at the starting end of the guide rail. A push head is provided at the end of the push rod close to the detection mechanism. The push rod can drive the push head to move along the first direction to push the filter rod to move along the guide rail to the detection mechanism; the push head includes a connecting section and a push head arranged in sequence along the first direction. The diameter of the connecting section is smaller than the diameter of the push head, and the push head can contact the end face of the filter rod.

[0010] According to another specific embodiment of the present invention, a contact surface is provided on a side of the pusher head close to the filter rod, and the area of ​​the contact surface is larger than the area of ​​the end surface of the filter rod.

[0011] According to another specific embodiment of the present invention, the pusher head further comprises a positioning section, which is provided at an end of the connecting section away from the pusher head, and the diameter of the positioning section is larger than the diameter of the connecting section;

[0012] The detection device also includes a photoelectric detector, which is used to detect the positioning section to determine whether the push head is located at the starting position.

[0013] According to another specific embodiment of the present invention, the detection mechanism is a microwave resonance mechanism, which includes a microwave resonance cavity extending along a first direction, the guide rail passes through the microwave resonance cavity, and the filter rod can pass through the microwave resonance cavity under the push of the pushing head.

[0014] According to another specific embodiment of the present invention, it also includes a driving mechanism, which is connected to the push rod and is used to drive the push rod and the push head to move so that the push head slides back and forth between the starting position and the end position; when the push head slides from the starting position to the end position, the push head can push the filter rod to pass through the microwave resonant cavity along the first direction.

[0015] According to another specific embodiment of the present invention, the driving mechanism includes a driving unit, a slide and a slide seat slidably mounted on the slide, the slide is arranged parallel to the guide rail, the slide seat can move along the first direction on the slide, the slide seat and the push rod are connected by a connecting member, and the driving unit can drive the slide seat, the connecting member and the push rod to move back and forth along the first direction.

[0016] According to another specific embodiment of the present invention, the push head part also includes an insertion section, which is located between the push rod and the positioning section. An end of the push rod close to the push head part is provided with a mounting hole extending along the first direction, and the insertion section can be at least partially inserted into the mounting hole. A locking piece is also provided on the push rod, which is used to lock the insertion section located in the mounting hole.

[0017] According to another specific embodiment of the present invention, an insertion hole is provided on the side wall of the push rod, and the insertion hole is connected to the mounting hole. The locking piece can be inserted into the insertion hole and contact the insertion section in the mounting hole to lock the position of the insertion section.

[0018] According to another specific embodiment of the present invention, the locking member is a bolt, the insertion hole is a threaded hole, the locking member is threadedly connected to the insertion hole, and when the locking member is tightened, the position of the insertion section is locked.

[0019] According to another specific embodiment of the present invention, the length of the pusher head along the first direction is 1-3 mm, and the length of the connecting section along the first direction is 10-13 mm.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The push rod provided by the utility model is provided with a pusher head, which is in turn provided with a connecting section and a pusher head, wherein the diameter of the connecting section is smaller than the diameter of the pusher head. When a filter stick needs to be inspected, the pusher head is brought into contact with the end face of the stick, and the pusher rod then pushes the stick along a guide rail to a detection mechanism for inspection. Because the diameter of the connecting section of the pusher head is smaller than the diameter of the pusher head, the waveform generated by the detection mechanism is clearly distinguishable from the waveform generated at the beginning of the end of the stick, thereby clearly identifying the starting end of the stick and improving detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram showing a detection device provided by an embodiment of the present utility model is shown;

[0023] Figure 2 A schematic diagram showing a push rod provided by an embodiment of the present invention Figure 1 ;

[0024] Figure 3 A schematic diagram showing a push rod provided by an embodiment of the present invention Figure 2 .

[0025] Reference numerals:

[0026] 1. Guide rail; 2. Detection mechanism; 21. Microwave resonant cavity; 3. Push rod; 4. Push head; 41. Positioning section; 42. Connecting section; 43. Push head; 431. Contact surface; 44. Insertion section; 5. Filter rod; 6. Photoelectric detector; 7. Slide; 8. Slide seat; 9. Connector; 10. Mounting hole; 11. Insertion hole. DETAILED DESCRIPTION

[0027] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0030] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0031] At present, microwave detectors often give inaccurate test results when testing burst bead filter rods.

[0032] In order to solve the above technical problems, the inventor discovered through exploration that when the push rod pushes the filter rod through the microwave resonant cavity, the push rod will also cause the energy parameters of the microwave electromagnetic field to change, and the waveform generated by the push rod is relatively similar to the waveform generated at the end of the filter rod. Therefore, it is difficult for the microwave detector to identify the starting end of the filter rod, which makes it difficult to intercept the waveform of the filter rod part, affecting the detection results.

[0033] The utility model provides a detection device, which can accurately identify the starting end of the filter rod end, facilitates interception of the waveform of the filter rod part, and thus improves the detection accuracy.

[0034] In order to make the technical solutions and advantages of the present invention more clear, the implementation methods of the present invention are described in further detail below.

[0035] refer to Figure 1 The embodiment of the present invention provides a detection device, including a guide rail 1, a detection mechanism 2 and a push rod 3, wherein the guide rail 1 is moved along a first direction (such as Figure 1 The filter rod 5 can be placed in the guide rail 1, and the axial direction of the filter rod 5 is parallel to the first direction. The detection mechanism 2 is provided on the guide rail 1, and the detection mechanism 2 is used to detect whether the filter rod 5 is qualified. The push rod 3 is provided at the beginning of the guide rail 1, and the end of the push rod 3 close to the detection mechanism 2 is provided with a push head 4. The push rod 3 can drive the push head 4 to move along the first direction to push the filter rod 5 along the guide rail 1 to the detection mechanism 2. Figure 2 The pusher head 4 includes a connecting section 42 and a pusher head 43 arranged in sequence along a first direction. The diameter of the connecting section 42 is smaller than that of the pusher head 43, and the pusher head 43 is capable of contacting the end surface of the filter rod 5. Specifically, the detection mechanism 2 is a microwave resonance mechanism, which includes a microwave resonance cavity 21 extending along the first direction. The guide rail 1 passes through the microwave resonance cavity 21, and the filter rod 5 can pass through the microwave resonance cavity 21 under the push of the pusher head 4.

[0036] Furthermore, a conveying mechanism (not shown) is provided upstream of the guide rail 1. This mechanism is used to sequentially convey filter rods 5 onto the guide rail 1. Once the filter rods 5 are placed onto the guide rail 1, the detection device provided in this embodiment begins operation, with the pusher head 4 pushing the filter rods 5 toward the detection mechanism 2 for testing. A collection mechanism (not shown) is provided downstream of the guide rail 1. After testing, the filter rods 5 are transported to the next station by the collection mechanism.

[0037] When the detection of the filter rod 5 begins, the push head 43 is brought into contact with the end face of the filter rod 5, and then the push rod 3 is moved so that the push head 43 pushes the filter rod 5 along the guide rail 1 to the detection mechanism 2. The filter rod 5 passes through the microwave resonant cavity 21 under the push of the push head 43 to detect the filter rod 5. Since the diameter of the connecting section 42 on the push head 4 is significantly smaller than the diameter of the push head 43, the waveform generated by the push head 4 during the process of the filter rod 5 passing through the microwave resonant cavity 21 is significantly different from the waveform generated by the starting end of the filter rod 5 (i.e., the end face of the filter rod 5 and the push head 43 in contact), thereby being able to clearly identify the starting end of the filter rod 5 and improving the detection accuracy.

[0038] Optionally, refer to Figure 2The pusher head 43 has a contact surface 431 on the side closest to the filter rod 5. The area of ​​the contact surface 431 is larger than the area of ​​the end face of the filter rod 5. This design ensures that the contact surface 431 of the pusher head 43 can fully contact the end face of the filter rod 5 when the pusher head 43 pushes the filter rod 5 toward the detection mechanism 2, thus preventing the filter rod 5 from tilting during the pushing process, which could lead to large errors in the detection results.

[0039] Optionally, refer to Figure 1 and Figure 2 The pushing head 4 also includes a positioning section 41. The positioning section 41 is provided at one end of the connecting section 42 away from the pushing head 43. The diameter of the positioning section 41 is larger than the diameter of the connecting section 42. The detection device also includes a photoelectric detector 6. The photoelectric detector 6 is used to detect the positioning section 41 to determine whether the pushing head 4 is located at the starting position. When the filter rod 5 is detected, the photoelectric detector 6 is first used to determine whether the pushing head 4 is located at the starting position. When the pushing head 4 is located at the starting position, the pushing head 4 starts to push the filter rod. After the filter rod 5 passes through the microwave resonant cavity 21, the pushing head 4 returns to the starting position. When the photoelectric detector 6 detects that the pushing head 4 has returned to the starting position, the pushing head 4 stops working and waits for the next filter rod detection. The utility model facilitates determining whether the pushing head 4 is located at the starting position by setting the positioning section 41 and the photoelectric detector 6, thereby determining whether the pushing head 4 can start working.

[0040] Optionally, a driving mechanism is further included, which is connected to the push rod 3 and is used to drive the push rod 3 and the push head 4 to move so that the push head 4 slides back and forth between the starting position and the end position. When the push head 4 slides from the starting position to the end position, the push head 4 can push the filter rod 5 to pass through the microwave resonant cavity 21 along the first direction. Specifically, refer to Figure 1 The drive mechanism includes a drive unit (not shown), a slide 7, and a slide 8 slidably mounted on the slide 7. The slide 7 is arranged parallel to the guide rail 1. The slide 8 can move along a first direction on the slide 7. The slide 8 and the push rod 3 are connected by a connecting member 9. The drive unit can drive the slide 8, the connecting member 9, and the push rod 3 to reciprocate along the first direction. For example, the drive unit can be a cylinder.

[0041] When testing the filter rod 5, when the push head 4 is at the starting position, the driving unit drives the slide 8 to move along the slide 7, and the slide 8 drives the push rod 3 to move toward the detection mechanism 2 through the connecting piece 9, so that the push head 4 moves from the starting position to the ending position. When the push head 4 is at the ending position, it indicates that the filter rod 5 currently being tested has passed through the microwave resonant cavity 21, and the detection mechanism 2 has completed the collection of the waveform of the filter rod 5. At this time, the driving unit drives the slide 8 to move along the slide 7 again, so that the push rod 3 returns from the ending position to the starting position, waiting for the next test. The utility model is convenient for driving the push head 4 to move between the starting position and the ending position by setting a driving mechanism, so as to realize that the filter rods to be tested are pushed to the detection mechanism 2 in sequence for testing.

[0042] Optionally, refer to Figure 2 and Figure 3 The pusher head 4 further includes an insertion section 44, which is located between the push rod 3 and the positioning section 41. The push rod 3 is provided with a mounting hole 10 extending along the first direction at one end thereof close to the pusher head 4. The insertion section 44 can be at least partially inserted into the mounting hole 10. The push rod 3 is also provided with a locking member (not shown in the figure), which is used to lock the insertion section 44 located in the mounting hole 10. Specifically, referring to Figure 2 and Figure 3 The side wall of the push rod 3 is provided with an insertion hole 11, which is connected to the mounting hole 10. The locking member can be inserted into the insertion hole 11 and contact the insertion section 44 in the mounting hole 10 to lock the position of the insertion section 44. Exemplarily, the locking member is a bolt, and the insertion hole 11 is a threaded hole. The locking member is threadedly connected to the insertion hole 11. When the locking member is tightened, the position of the insertion section 44 is locked.

[0043] When testing filter rods of different lengths, the length of the pusher head 4 can be adjusted by adjusting the insertion depth of the insertion section 44 within the mounting hole 10, thereby adapting to filter rods of different lengths. In addition, the insertion section 44 provides a detachable connection between the pusher head 4 and the push rod 3, thereby facilitating replacement and installation of the pusher head 4.

[0044] Optionally, the length of the pusher head 43 along the first direction is 1-3 mm, and the length of the connecting section 42 along the first direction is 10-13 mm.

[0045] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A detection device for detecting filter rods, characterized in that: The detection device comprises: A guide rail extending along a first direction, wherein the filter rod can be placed in the guide rail, and an axial direction of the filter rod is parallel to the first direction; A detection mechanism is provided on the guide rail, and is used to detect whether the filter rod is qualified; A push rod is provided at the starting end of the guide rail, and a push head is provided at the end of the push rod close to the detection mechanism. The push rod can drive the push head to move along the first direction to push the filter rod to move along the guide rail to the detection mechanism; the push head includes a connecting section and a push head arranged in sequence along the first direction, the diameter of the connecting section is smaller than the diameter of the push head, and the push head can contact the end face of the filter rod.

2. The detection device according to claim 1, wherein A contact surface is provided on a side of the push head close to the filter rod, and the area of ​​the contact surface is larger than the area of ​​the end surface of the filter rod.

3. The detection device according to claim 2, wherein: The pusher head portion further comprises a positioning section, which is provided at an end of the connecting section away from the pusher head, and the diameter of the positioning section is larger than the diameter of the connecting section; The detection device further includes a photoelectric detector, which is used to detect the positioning section to determine whether the pushing head portion is located at a starting position.

4. The detection device according to claim 3, wherein The detection mechanism is a microwave resonance mechanism, which includes a microwave resonance cavity extending along the first direction. The guide rail passes through the microwave resonance cavity, and the filter rod can pass through the microwave resonance cavity under the push of the pushing head.

5. The detection device according to claim 4, characterized in that The invention also includes a driving mechanism, the driving mechanism is connected to the push rod, and the driving mechanism is used to drive the push rod and the push head to move so that the push head slides back and forth between the starting position and the end position; When the pushing head slides from the starting position to the ending position, the pushing head can push the filter rod to pass through the microwave resonance cavity along the first direction.

6. The detection device according to claim 5, characterized in that The driving mechanism includes a driving unit, a slide and a slide seat slidably mounted on the slide, the slide is arranged parallel to the guide rail, the slide seat can move along the first direction on the slide, the slide seat and the push rod are connected by a connecting member, and the driving unit can drive the slide seat, the connecting member and the push rod to reciprocate along the first direction.

7. The detection device according to claim 6, characterized in that The push head portion further includes an insertion section, which is located between the push rod and the positioning section. An end of the push rod close to the push head portion is provided with a mounting hole extending along the first direction, and the insertion section can be at least partially inserted into the mounting hole. A locking piece is also provided on the push rod, which is used to lock the insertion section located in the mounting hole.

8. The detection device according to claim 7, characterized in that An insertion hole is provided on the side wall of the push rod, and the insertion hole is communicated with the mounting hole. The locking piece can be inserted into the insertion hole and contact the insertion section in the mounting hole to lock the position of the insertion section.

9. The detection device according to claim 8, characterized in that The locking piece is a bolt, the insertion hole is a threaded hole, the locking piece is threadedly connected to the insertion hole, and when the locking piece is tightened, the position of the insertion section is locked.

10. The detection device according to any one of claims 1 to 9, characterized in that: The length of the push head along the first direction is 1-3 mm, and the length of the connecting section along the first direction is 10-13 mm.

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