A bottle cap detection and feeding variable distance device

Abstract

This utility model discloses a variable-distance device for bottle cap inspection feeding, relating to the field of bottle cap production technology. It is installed on a bottle cap production line. The production line includes a cap sorting machine, a workbench, and a bottle cap inspection machine arranged in sequence. A conveyor belt is provided on the workbench, with one end of the conveyor belt located inside the cap sorting machine and the other end located inside the bottle cap inspection machine. Two baffles are spaced apart on the workbench, and the conveyor belt is located between the two baffles. The variable-distance device is installed on the workbench. When several bottle caps conveyed by the conveyor belt pass through the variable-distance device, the variable-distance device increases the distance between two adjacent bottle caps to facilitate subsequent inspection by the bottle cap inspection machine.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap production technology, and more specifically, to a bottle cap detection and feeding variable distance device. Background Technology

[0002] In the production line of honey water bottle caps, one part of the process is as follows: After a batch of bottle caps are piled up in the storage bins, they are usually transported in batches to the cap sorting machine by a conveyor. The cap sorting machine then sorts the randomly piled bottle caps, and the sorted bottle caps are then transported one by one to the bottle cap inspection machine for inspection by the conveyor line.

[0003] Before each bottle cap enters the bottle cap inspection machine, the distance between adjacent bottle caps needs to be appropriately increased to facilitate the machine's 360-degree photographing of each cap. If adjacent bottle caps are too close, it will affect the photographic detection of yellow spots and black dots on the cap. However, some existing honey water bottle cap production lines have the problem of not being able to increase the distance between adjacent bottle caps before inspection. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bottle cap detection and feeding variable distance device.

[0005] The objective of this utility model is achieved through the following technical solution: A bottle cap detection feeding distance variable device is installed on a bottle cap production line. The production line includes a cap sorting machine, a workbench, and a bottle cap inspection machine arranged in sequence. A conveyor belt is provided on the workbench, with one end of the conveyor belt located inside the cap sorting machine and the other end located inside the bottle cap inspection machine. Two baffles are spaced apart on the workbench, and the conveyor belt is located between the two baffles. The distance variable device is installed on the workbench, and when several bottle caps conveyed by the conveyor belt pass through the distance variable device, the distance variable device increases the distance between two adjacent bottle caps.

[0006] Furthermore, in this utility model, the aforementioned variable pitch device includes a feeding mechanism disposed on the aforementioned workbench and an elastic blocking mechanism disposed on one of the aforementioned baffles, wherein the elastic blocking mechanism is located between the two aforementioned baffles; when the aforementioned feeding mechanism is not working, the aforementioned elastic blocking mechanism causes several bottle caps to temporarily remain on the aforementioned conveyor belt.

[0007] Furthermore, in this utility model, a straight groove is provided on the baffle plate without the above-mentioned elastic blocking mechanism to facilitate the feeding mechanism to move the bottle cap on the conveyor belt. The length direction of the straight groove is parallel to the conveying direction of the conveyor belt.

[0008] Furthermore, in this utility model, the aforementioned elastic blocking mechanism includes a fixed rod disposed on the side wall of the corresponding baffle near the other baffle, and a movable rod hinged to the fixed rod via a spring hinge. The spring hinge causes the movable rod to rotate only toward the bottle cap inspection machine when subjected to extrusion pressure, and not toward the cap sorting machine.

[0009] Furthermore, in this utility model, the aforementioned feeding mechanism includes a motor mounted on the aforementioned workbench and a plurality of levers arranged in a circumferential array on the output shaft of the aforementioned motor. The central axis of the output shaft of the aforementioned motor is perpendicular to the conveying surface of the aforementioned conveyor belt, and the center line of the array of the plurality of levers is collinear with the central axis of the output shaft of the aforementioned motor. Any end of the aforementioned lever away from the aforementioned motor can pass through the aforementioned straight groove and extend into the space between two bottle caps, causing the bottle caps to move toward the aforementioned movable rod, so that the bottle caps pass over the aforementioned movable rod.

[0010] Furthermore, in this utility model, the aforementioned feeding mechanism includes a screw and nut mechanism disposed on the aforementioned workbench and an electric telescopic rod disposed on the nut of the aforementioned screw and nut mechanism. The reciprocating direction of the aforementioned nut is parallel to the conveying direction of the aforementioned conveyor belt, and the telescopic direction of the aforementioned electric telescopic rod is perpendicular to the conveying direction of the aforementioned conveyor belt. The end of the aforementioned electric telescopic rod away from the aforementioned nut can pass through the aforementioned straight groove and extend into the space between two bottle caps, causing the bottle caps to move toward the aforementioned movable rod, so that the bottle caps pass over the aforementioned movable rod.

[0011] The beneficial effects of this utility model are: This utility model provides a bottle cap detection feeding pitch changer. When several bottle caps conveyed by the conveyor belt pass through the pitch changer, the pitch changer can quickly increase the distance between two adjacent bottle caps to facilitate subsequent detection by the bottle cap detection machine. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 for Figure 1 Top view; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the material feeding mechanism in Embodiment 2 of this utility model.

[0013] In the diagram: 101-Cap feeding machine; 201-Workbench; 301-Bottle cap testing machine; 401-Conveyor belt; 501-Baffle; 601-Straight channel; 701-Fixed rod; 702-Moving rod; 801-Motor; 802-Pulley; 901-Screw and nut mechanism; 9011-Nut; 902-Electric telescopic rod; 1001-Bottle cap. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] Example 1 Please see Figure 1-3 This embodiment provides a technical solution: A variable-pitch feeding device for bottle cap inspection is installed on a production line that produces bottle caps 1001. The production line includes a cap sorting machine 101, a workbench 201, and a bottle cap inspection machine 301 arranged sequentially. A conveyor belt 401 (the conveyor belt 401 is a common type of belt conveyor) is installed on the workbench 201. One end of the conveyor belt 401 is located inside the cap sorting machine 101, and the other end is located inside the bottle cap inspection machine 301. Several bottle caps 1001 are sorted in the cap sorting machine 101 and then moved one by one onto the conveyor belt 401, and then conveyed to the bottle cap inspection machine 301 for inspection. To prevent the bottle caps 1001 from tipping over to either side of the conveyor belt 401 during their movement, two baffles 501 are installed at intervals on the workbench 201, with the conveyor belt 401 positioned between the two baffles 501. The pitch-changing device is installed on the workbench 201. When several bottle caps 1001 conveyed by the conveyor belt 401 pass through the pitch-changing device, the pitch-changing device increases the distance between two adjacent bottle caps 1001.

[0016] Preferably, in this embodiment, the variable pitch device includes a feeding mechanism installed on the workbench 201 and an elastic blocking mechanism installed on one of the baffles 501. The elastic blocking mechanism is located between the two baffles 501. When the feeding mechanism is not working, the elastic blocking mechanism causes several bottle caps 1001 to temporarily remain on the conveyor belt 401.

[0017] Preferred, refer to Figure 1 In order to facilitate the feeding mechanism to move the bottle caps 1001 located on the conveyor belt 401, in this embodiment, the baffle 501 without the elastic blocking mechanism is provided with a straight groove 601 to facilitate the feeding mechanism to move the bottle caps 1001 on the conveyor belt 401. The length direction of the straight groove 601 is parallel to the conveying direction of the conveyor belt 401.

[0018] Specifically, from Figure 3From the perspective of this embodiment, the elastic blocking mechanism includes a fixed rod 701 installed on the side wall of the left baffle 501 near the right baffle 501, and a movable rod 702 hinged to the fixed rod 701 by a spring hinge (not shown in the figure). The installation method of the spring hinge must meet the following requirements: when the movable rod 702 is subjected to extrusion pressure, it can only rotate toward the bottle cap inspection machine 301, and cannot rotate toward the cap sorting machine 101; at the same time, the elastic force of the spring hinge must be greater than the frictional force between the bottle cap 1001 and the conveyor belt 401.

[0019] Specifically, from Figure 2 or Figure 3 From this perspective, the feeding mechanism in this embodiment includes a motor 801 mounted on the workbench 201 and a plurality of levers 802 arranged in a circumferential array on the output shaft of the motor 801. The central axis of the output shaft of the motor 801 is perpendicular to the conveying surface of the conveyor belt 401, and the center line of the array of levers 802 is collinear with the central axis of the output shaft of the motor 801. The end of any lever 802 away from the motor 801 can pass through the straight groove 601 and extend between two bottle caps 1001, causing the bottle caps 1001 to move toward the movable rod 702 so that the bottle caps 1001 pass over the movable rod 702. The motor 801 also works when the conveyor belt 401 is working.

[0020] Working principle: from Figure 3 From the perspective of the viewpoint, as several bottle caps 1001 move on the conveyor belt 401, when the movable rod 702 is in its natural state, it is horizontal under the elastic force of the spring hinge. When the bottle cap 1001 closest to the movable rod 702 on the conveyor belt 401 is conveyed to a point where it comes into contact with the movable rod 702, due to the light weight of the bottle cap 1001 and the small friction between the bottle cap 1001 and the conveyor belt 401, the friction between the bottle cap 1001 and the conveyor belt 401 is insufficient to overcome the elastic force of the spring hinge. Therefore, the movable rod 702 cannot rotate counterclockwise at this time, and the movable rod 702 keeps the current bottle cap 1001 temporarily stationary on the conveyor belt 401. As several levers 802 rotate clockwise around the central axis of the output shaft of the motor 801, the corresponding lever 802 extends through the straight groove 601 and into the space between two bottle caps 1001, abutting against the bottle cap 1001 closest to the movable lever 702. The current lever 802 continues to rotate clockwise, applying pressure to the bottle cap 1001 closest to the movable lever 702. This pressure is transmitted to the movable lever 702, causing it to rotate counterclockwise. When the movable lever 702 rotates counterclockwise to a certain angle, the bottle cap 1001 closest to the movable lever 702 and the current lever 802 can pass over the movable lever 702. After the current bottle cap 1001 passes over the movable lever 702, the movable lever 702, under the elastic force of the spring hinge, returns to its original position. Figure 3The current bottle cap 1001 moves a certain distance towards the bottle cap inspection machine 301 after passing the movable bar 702 and being conveyed by the conveyor belt 401. Then the next bottle cap 1001 passes the movable bar 702. Since there is a time difference between the passing of two adjacent bottle caps 1001, the distance between the two bottle caps 1001 increases, so as to facilitate the inspection by the bottle cap inspection machine 301.

[0021] Example 2 Please see Figure 4 The difference between this embodiment and Embodiment 1 is that the feeding mechanism in this embodiment includes a screw and nut mechanism 901 mounted on the workbench 201 and an electric telescopic rod 902 mounted on the nut 9011 of the screw and nut mechanism 901. The reciprocating direction of the nut 9011 is parallel to the conveying direction of the conveyor belt 401, and the telescopic direction of the electric telescopic rod 902 is perpendicular to the conveying direction of the conveyor belt 401. The end of the electric telescopic rod 902 away from the nut 9011 can pass through the straight groove 601 and extend between two bottle caps 1001, causing the bottle caps 1001 to move towards the movable rod 702, so that the bottle caps 1001 pass over the movable rod 702. The operating parameters of the motor controlling the screw and nut mechanism 901 can be set in advance, so that the nut 9011 has two extreme positions, namely the first extreme position and the second extreme position. When the nut 9011 is in the first extreme position, the electric telescopic rod 902 extends and can extend between the bottle cap 1001 closest to the movable rod 702 and the next bottle cap 1001 (i.e., Figure 4 (State); when nut 9011 is in the second limit position, the free ends of the current bottle cap 1001 and electric telescopic rod 902 just pass the movable rod 702 by an appropriate distance. At this time, the movable rod 702 can rotate clockwise under the elastic force of the spring hinge. Figure 4 The state.

[0022] Working principle: from Figure 4From the perspective of operation, during operation, the screw-nut mechanism 901 first stops its nut 9011 at the first extreme position. When the bottle cap 1001 closest to the movable rod 702 abuts against the movable rod 702, the electric telescopic rod 902 extends to insert between the bottle cap 1001 closest to the movable rod 702 and the next bottle cap 1001. Then, the motor of the screw-nut mechanism 901 is started, causing the nut 9011 to move upward to the second extreme position. During the upward movement of the nut 9011, the electric telescopic rod 902 and the bottle cap 1001 closest to the movable rod 702 move upward synchronously until the free ends of both the bottle cap 1001 closest to the movable rod 702 and the electric telescopic rod 902 have passed the movable rod 702. After the nut 9011 moves upward to the second extreme position, the electric telescopic rod 902 immediately shortens by a certain length, and then the nut 9011 moves downward to the first extreme position. By repeating the above steps, the distance between the two bottle caps 1001 can be increased to facilitate the subsequent inspection by the bottle cap inspection machine 301.

[0023] The control method for how the reciprocating movement of nut 9011 and the extension / retraction of electric telescopic rod 902 work together to increase the distance between the two bottle caps 1001 is existing technology, and therefore will not be elaborated upon here. For example, the control units of both can be electrically connected to the same controller to achieve coordinated operation.

[0024] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A bottle cap detection feeding variable distance device, which is installed on a production line for producing bottle caps (1001); the production line includes a cap sorting machine (101), a workbench (201) and a bottle cap detection machine (301) arranged sequentially, wherein a conveyor belt (401) is provided on the workbench (201), one end of the conveyor belt (401) is located inside the cap sorting machine (101) and the other end of the conveyor belt (401) is located inside the bottle cap detection machine (301); two baffles (501) are spaced apart on the workbench (201), and the conveyor belt (401) is located between the two baffles (501); characterized in that: The pitch-changing device is installed on the workbench (201). When a number of bottle caps (1001) conveyed by the conveyor belt (401) pass through the pitch-changing device, the pitch-changing device increases the distance between two adjacent bottle caps (1001).

2. The bottle cap detection and feeding variable distance device according to claim 1, characterized in that: The variable pitch device includes a feeding mechanism disposed on the workbench (201) and an elastic blocking mechanism disposed on one of the baffles (501), the elastic blocking mechanism being located between the two baffles (501); when the feeding mechanism is not working, the elastic blocking mechanism causes a number of bottle caps (1001) to temporarily remain on the conveyor belt (401).

3. The bottle cap detection and feeding variable distance device according to claim 2, characterized in that: The baffle (501) without the elastic blocking mechanism is provided with a straight groove (601) to facilitate the feeding mechanism to move the bottle cap (1001) on the conveyor belt (401). The length direction of the straight groove (601) is parallel to the conveying direction of the conveyor belt (401).

4. The bottle cap detection and feeding variable distance device according to claim 3, characterized in that: The elastic blocking mechanism includes a fixed rod (701) disposed on the side wall of one of the respective baffles (501) near the other baffle (501), and a movable rod (702) hinged to the fixed rod (701) by a spring hinge, the spring hinge causing the movable rod (702) to rotate only toward the bottle cap inspection machine (301) and not toward the cap sorting machine (101) when subjected to extrusion pressure.

5. The bottle cap detection and feeding variable distance device according to claim 4, characterized in that: The feeding mechanism includes a motor (801) mounted on the workbench (201) and a plurality of levers (802) arranged in a circumferential array on the output shaft of the motor (801). The central axis of the output shaft of the motor (801) is perpendicular to the conveying surface of the conveyor belt (401), and the center line of the array of the plurality of levers (802) is collinear with the central axis of the output shaft of the motor (801). The end of any lever (802) away from the motor (801) can pass through the straight groove (601) and extend between two bottle caps (1001), causing the bottle caps (1001) to move toward the movable rod (702) so that the bottle caps (1001) pass over the movable rod (702).

6. The bottle cap detection and feeding variable distance device according to claim 4, characterized in that: The feeding mechanism includes a screw and nut mechanism (901) mounted on the workbench (201) and an electric telescopic rod (902) mounted on the nut (9011) of the screw and nut mechanism (901). The reciprocating direction of the nut (9011) is parallel to the conveying direction of the conveyor belt (401), and the telescopic direction of the electric telescopic rod (902) is perpendicular to the conveying direction of the conveyor belt (401). One end of the electric telescopic rod (902) away from the nut (9011) can pass through the straight groove (601) and extend between two bottle caps (1001), causing the bottle caps (1001) to move toward the movable rod (702) so that the bottle caps (1001) pass over the movable rod (702).

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