Photoelectric sensing device of biological agent filling equipment

Abstract

The utility model discloses a photoelectric sensing device of biological agent filling equipment, which is characterized in that a light-emitting part of a photoelectric sensor is provided with a shading film made of opaque flexible materials, and the shading film shields a part of a light-emitting surface of the light-emitting part so as to prevent the photoelectric sensor from generating sensing signals in advance when a movable leaning rod is at an initial position. By partially covering the light-emitting part of the photoelectric sensor, the situation that the photoelectric sensor generates an induction signal in advance is avoided, so that the phenomenon that in the prior art, liquid flows out of a filling component in advance, and the process rhythm is disrupted is avoided, and equipment is protected; the problems generated in the prior art can be solved only by adopting the shading film, the technical means is simple and reasonable, the implementation cost is low, and the shading area of the shading film can be flexibly controlled according to site conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of biological agent filling, in particular to a photoelectric sensing device of biological agent filling equipment. Background Art

[0002] During the filling process of biological agents, several barrels with upper openings need to be divided into several groups, and the barrels to be filled need to be sent to the filling station one by one by using a conveyor belt for filling. Before filling, a photoelectric sensing process is required to determine that the barrels to be filled have accurately reached the predetermined position. Only after the photoelectric sensing confirmation can the filling components be started to fill the barrels to be filled.

[0003] The above scheme has been mentioned in the prior art. The patent with authorization announcement number CN209721541U provides a high-efficiency automatic filling production line for daily chemical products, including an empty bottle supply device, a conveying device and a filling device. The patent document mentions that "the feedback from the photoelectric sensor is used to indirectly control the simultaneous start of the first cylinder and the injection head". Therefore, it is a common method to use photoelectric sensing to confirm that the barrel to be filled has accurately reached the predetermined position before filling.

[0004] With reference to the above patent, a photoelectric sensing device for a biological agent filling equipment has appeared in the prior art, including: a translation frame that moves horizontally in a direction perpendicular to the barrel conveying line under the drive of a driving unit, the translation frame is movably connected to a movable rod group, and the movable rod group is composed of a plurality of movable leaning rods arranged horizontally along the conveying direction and arranged to rotate up and down; a photoelectric sensor (such as E3JK-R4M1 Omron photoelectric switch), which includes a light-emitting part and a receiving part, and is provided with a reflector, the reflector and the light-emitting part are both mounted on the translation frame and are located on both sides of the movable rod group, and the movable leaning rod blocks the light emitted from the light-emitting part to the reflector when in the initial position; wherein, when performing the filling preparation process, the ends of all the movable leaning rods are against the outer wall of the barrel to be filled and deflected upward, the light-emitting part faces the reflector and generates a sensing signal of the photoelectric sensor; it can be seen that the movable leaning rod is used to block the light path of the light-emitting part to the reflector.

[0005] However, since the movable supporting rod needs to be deflected upward by the resistance, its size is generally small, and it often cannot effectively block the light path from the light-emitting part to the reflector, causing the photoelectric sensor to generate a sensing signal in advance, causing the filling parts to discharge liquid in advance, disrupting the process rhythm. Utility Model Content

[0006] The utility model aims to provide a photoelectric sensing device for biological agent filling equipment, which can avoid the situation that the photoelectric sensor generates a sensing signal in advance by partially covering the light-emitting part of the photoelectric sensor.

[0007] The purpose of the utility model is achieved as follows: a photoelectric sensing device for a biological agent filling device, comprising:

[0008] A translation frame that moves horizontally in a direction perpendicular to the barrel conveying line under the drive of a driving unit, wherein the translation frame is movably connected to a movable rod group, and the movable rod group is composed of a plurality of movable supporting rods that are horizontally arranged along the conveying direction and are rotatably arranged up and down;

[0009] The photoelectric sensor includes a light emitting part and a receiving part, and is provided with a reflector, wherein the reflector and the light emitting part are both mounted on the translation frame and are located at two sides of the movable rod group;

[0010] Wherein, during the filling preparation process, the ends of all movable rods are against the outer wall of the barrel to be filled and deflected upward, and the light-emitting part faces the reflector and generates a sensing signal of the photoelectric sensor;

[0011] The light emitting part is provided with a shading film made of an opaque flexible material, and the shading film shields a part of the light emitting surface of the light emitting part. When the movable leaning rod is in the initial position, the light of the light emitting part irradiating to the reflector is blocked.

[0012] The beneficial effects of the utility model are:

[0013] By partially covering the light-emitting part of the photoelectric sensor, the photoelectric sensor is prevented from generating a sensing signal in advance, thereby avoiding the phenomenon of "causing the filling component to discharge liquid in advance and disrupting the process rhythm" in the prior art, thereby protecting the equipment.

[0014] The problems in the prior art can be solved by only using a shading film. The technical means are simple and reasonable, the implementation cost is low, and the shading area of ​​the shading film can be flexibly controlled according to the on-site conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall layout of the utility model.

[0016] Figure 2 It is a schematic diagram of the principle of the utility model.

[0017] Figure 3 It is a simplified diagram for comparing the improved scheme of the utility model.

[0018] Figure 4 This is a schematic diagram of the working principle of the photoelectric sensor.

[0019] Figure 5 This is a schematic diagram of the front view of the light-emitting portion of the photoelectric sensor.

[0020] Figure 6 This is a schematic diagram of the first application example of the light-shielding film.

[0021] Figure 7 This is a schematic diagram of a second application example of a light-shielding film.

[0022] Figure 8 This is a schematic diagram of the third application example of the light-shielding film. DETAILED DESCRIPTION

[0023] The following will be combined with the attached embodiment of the utility model Figure 1-8 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-4 As shown, a photoelectric sensing device of a biological agent filling equipment comprises:

[0025] A translation frame 2 is driven by a driving unit to move horizontally in a direction perpendicular to the barrel conveying line (conveyor belt 7), and the translation frame 2 is movably connected to a movable rod group, which is composed of a plurality of movable supporting rods 3 arranged horizontally along the conveying direction and rotatably arranged up and down;

[0026] Photoelectric sensor 9. There are many models of photoelectric sensor 9 to choose from, such as E3JK-R4M1 Omron photoelectric switch, which includes a light-emitting part 9a and a receiving part 9b, and is equipped with a reflector 11. In a normal sensing state, the light-emitting part 9a emits light, the reflector 11 reflects light, and the reflected signal light is received by the receiving part 9b, thereby forming a sense. The reflector 11 and the light-emitting part 9a are both installed on the translation frame 2 (the reflector 11 is detachably fixed on the connecting seat 12, and the connecting seat 12 is detachably fixedly connected to the translation frame 2), and are located on both sides of the movable rod group. When the movable leaning rod 3 is in the initial position, it blocks the light from the light-emitting part 9a to the reflector 11.

[0027] Each movable leaning rod 3 is equipped with a fulcrum shaft 4 and a leaning rod mounting seat 5 . The leaning rod mounting seat 5 is fixedly connected to the translation frame 2 . The movable leaning rod 3 is connected to the leaning rod mounting seat 5 by rotating up and down through the fulcrum shaft 4 .

[0028] The device also includes a main support 8 and a driving cylinder 1. The translation frame 2 is slidably connected to the main support 8 and the sliding direction is perpendicular to the direction of the barrel conveying line. The main support 8 is fixedly arranged, the cylinder barrel of the driving cylinder 1 is fixedly connected to the main support 8, the piston rod of the driving cylinder 1 is connected to the translation frame 2, and the driving cylinder 1 is parallel to the sliding direction of the translation frame 2.

[0029] During the filling preparation process, Figure 1 , 2As shown, the ends of all movable levers 3 are against the outer wall of the barrel 6 to be filled and deflected upward, the light-emitting portion 9a is facing the reflective plate 11 and generates a sensing signal of the photoelectric sensor 9, which is transmitted to the electronic control unit 15, and then the electronic control unit 15 issues a command to control the filling component 14 to perform the filling operation.

[0030] like Figure 3 , 5 As shown, the above-mentioned light-emitting portion 9a is provided with a shading film 10 made of black flexible material (opaque), and the shading film 10 blocks the upper part of the light-emitting surface of the light-emitting portion 9a (the possibility of other blocking positions is not excluded). When the movable leaning rod 3 is in the initial position, the movable leaning rod 3 leans on the translation frame 2 due to its own weight. Since the existing movable leaning rod 3 is relatively small, it often cannot completely block the infrared light emitted by the light-emitting portion 9a. Since the shading film 10 is provided, the shading film 10 can block part of the light that the movable leaning rod 3 cannot block or obstruct. When the movable leaning rod 3 is in the initial position, it leans against the translation frame 2 and blocks the light from the light-emitting portion 9a to the reflector 11, so that when all the movable leaning rods 3 are in the initial position, the photoelectric sensor 9 does not generate a sensing signal in advance, that is, to prevent the photoelectric sensor 9 from generating a sensing signal in advance, thereby ensuring the process rhythm of "sensing first and then filling in place", and preventing damage to the equipment and waste of liquid caused by entering the filling state in advance.

[0031] The translation frame 2 is fixedly connected with a sensor support 13 for mounting the photoelectric sensor 9 .

[0032] With respect to the structural form and installation method of the shading film 10 , the following three preferred structural forms are proposed as application examples.

[0033] like Figure 6 The first structure of the light shielding film 10 is shown. The light shielding film 10 is set as a flexible ring and fixedly sleeved on the sensor support 13, and the inner surface of the light shielding film 10 is in contact with the light emitting surface of the light emitting part 9a. This structure is relatively simple and practical. When installing, just put the light shielding film 10 on.

[0034] like Figure 7 The structure of the second shading film 10 is shown. The shading film 10 is configured as a belt, and both ends of the belt are connected with elastic tie bars 16 made of elastic material. The two elastic tie bars 16 are located on both sides of the light-emitting portion 9a. The two elastic tie bars 16 are fixedly connected to the sensor support 13 to drive the inner surface of the shading film 10 to elastically fit the light-emitting surface of the light-emitting portion 9a.

[0035] The elastic tie rod 16 is provided with a plastic screw 17, which is threadedly connected to the sensor support 13 and fixes the elastic tie rod 16 on the sensor support 13. Due to the provision of the elastic tie rod 16, the elastic force of the elastic tie rod 16 can drive the inner surface of the light shielding film 10 to more closely fit the light emitting surface of the light emitting portion 9a.

[0036] like Figure 8 The third structure of the shading film 10 is shown. The shading film 10 is an opaque flexible film, and both sides of the shading film 10 are integrally connected with adhesive portions 18. The two adhesive portions 18 are located at both sides of the light emitting portion 9a, and are fixedly bonded to the sensor support 13 to drive the inner surface of the shading film 10 to fit the light emitting surface of the light emitting portion 9a. The position of the shading film 10 can be fixed only by bonding, which is also convenient for flexibly adjusting the position of the shading film 10 on site.

[0037] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in the present invention, it should also be noted that the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through an intermediate connecting component, and the specific meaning of the terms in the present invention can be understood according to the specific circumstances.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A photoelectric sensing device for a biological agent filling device, comprising: A translation frame (2) is driven by a driving unit to perform horizontal movement in a direction perpendicular to the barrel conveying line, wherein the translation frame (2) is movably connected to a movable rod group, and the movable rod group is composed of a plurality of movable supporting rods (3) arranged horizontally along the conveying direction and arranged to rotate up and down; A photoelectric sensor (9), comprising a light-emitting portion (9a) and a receiving portion (9b), and provided with a reflector (11), wherein the reflector (11) and the light-emitting portion (9a) are both mounted on the translation frame (2) and are located at two sides of the movable rod group; When the filling preparation process is being carried out, the ends of all movable supporting rods (3) are pressed against the outer wall of the barrel (6) to be filled and deflected upward, and the light-emitting portion (9a) faces the reflective plate (11) and generates a sensing signal of the photoelectric sensor (9); Features: The light-emitting portion (9a) is provided with a light-shielding film (10) made of an opaque flexible material, the light-shielding film (10) shields a portion of the light-emitting surface of the light-emitting portion (9a), and the movable leaning rod (3) blocks the light from the light-emitting portion (9a) toward the reflective plate (11) when in the initial position.

2. The photoelectric sensing device of a biological agent filling equipment according to claim 1 is characterized in that: The translation frame (2) is fixedly connected with a sensor support (13) for mounting a photoelectric sensor (9).

3. The photoelectric sensing device of a biological agent filling equipment according to claim 2 is characterized in that: The light shielding film (10) is configured as a flexible ring and is fixedly sleeved on the sensor support (13), and the inner surface of the light shielding film (10) is in contact with the light emitting surface of the light emitting portion (9a).

4. The photoelectric sensing device of a biological agent filling equipment according to claim 2 is characterized in that: The shading film (10) is configured as a belt, both ends of which are connected to elastic tie bars (16) made of elastic material, the two elastic tie bars (16) being located at both sides of the light emitting portion (9a), and the two elastic tie bars (16) being fixedly connected to the sensor support (13) so as to drive the inner surface of the shading film (10) to elastically fit the light emitting surface of the light emitting portion (9a).

5. The photoelectric sensing device of a biological agent filling equipment according to claim 4 is characterized in that: The elastic tie rod (16) is provided with a plastic screw (17), and the plastic screw (17) is threadedly connected to the sensor support (13) and fixes the elastic tie rod (16) on the sensor support (13).

6. The photoelectric sensing device of a biological agent filling equipment according to claim 2 is characterized in that: The shading film (10) is configured as an opaque flexible film, and both sides of the shading film are integrally connected with bonding portions (18), the two bonding portions (18) are located at both sides of the light emitting portion (9a), and are fixedly bonded to the sensor support (13) to drive the inner surface of the shading film (10) to fit the light emitting surface of the light emitting portion (9a).

7. A photoelectric sensing device for a biological agent filling device according to any one of claims 1 to 6, characterized in that: Each movable leaning rod (3) is provided with a fulcrum shaft (4) and a leaning rod mounting seat (5); the leaning rod mounting seat (5) is fixedly connected to the translation frame (2); and the movable leaning rod (3) is connected to the leaning rod mounting seat (5) by means of the fulcrum shaft (4) so ​​as to be rotatable up and down.

8. The photoelectric sensing device of a biological agent filling equipment according to claim 7 is characterized in that: It also includes a main support (8) and a driving cylinder (1); the translation frame (2) is slidably connected to the main support (8) and the sliding direction is perpendicular to the direction of the barrel conveying line; the main support (8) is fixedly arranged; the cylinder barrel of the driving cylinder (1) is fixedly connected to the main support (8); the piston rod of the driving cylinder (1) is connected to the translation frame (2); and the driving cylinder (1) is parallel to the sliding direction of the translation frame (2).

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