Weighing and conveying integrated mechanism based on bottle body filling and filling machine

Abstract

The invention discloses a weighing and conveying integrated mechanism based on bottle body filling and a filling machine. The weighing and conveying integrated mechanism comprises a guardrail track, star wheels, a weighing track and weighing sensors. The star wheel is rotationally mounted on one side of the guardrail track and used for driving the bottle body to move along the guardrail track; wherein a notch is formed in the middle position of the guardrail track; the weighing track is arranged at the notch, a gap is reserved between the weighing track and the guardrail track, and the bottom of the weighing track is connected with the weighing sensor; the weighing track is provided with two arc-shaped transition sections matched with the guardrail track and a convex section; the two arc-shaped transition sections are respectively used for receiving the bottle bodies conveyed by the guardrail track and outputting the bottle bodies to the guardrail track; the protruding section is located between the two arc-shaped transition sections and protrudes outwards in the direction away from the rotating center point of the star wheel. Through the arrangement, the takt time required by the weighing process is shortened on the premise of ensuring the precision, so that the purposes of ensuring the filling precision and improving the production rate are achieved.

Description

Technical Field

[0001] The invention relates to the field of filling, and in particular to an integrated weighing and conveying mechanism and a filling machine based on bottle filling. Background Art

[0002] In the field of pharmaceutical filling, the weighing station is usually the key part of the equipment to accurately control the dosage of drug filling.

[0003] In the prior art, the vial weighing station is mainly composed of a bracket lifting mechanism and a scale installation component that work closely together to form a precise operating system. The specific filling and weighing process mainly includes the following steps:

[0004] The conveying mechanism pushes the vials to the filling station accurately according to the established procedures, and makes the vials fall steadily on the bracket;

[0005] Under the command of the control terminal, the bracket lifting mechanism uses a series of mechanical linkage mechanisms such as connecting rod transmission to drive the bracket to move vertically downward first, and then retreat along a specific trajectory, so that the vial can break away from the bracket support and fall onto the scale head, ready to be weighed and tested.

[0006] Among them, in the above process, due to the backward movement of the bracket, the guardrail rigidly connected to and fixedly installed on the bracket also moves backward synchronously, thereby allowing the vial to completely break away from the surrounding restraint of the guardrail, ensuring that the weighing head can obtain the accurate weight data of the vial and its internal materials without obstacles, so as to ensure the accuracy of filling weighing.

[0007] However, it was found through actual application that there are certain defects in the above operation process: for example, in the summary of the above process, since the two key actions of bracket lifting and waiting for stable reading need to be executed in sequence, and there is an indispensable time interval between the two actions to ensure the accuracy of the action and the stability of the equipment, this will inevitably greatly lengthen the cycle time of the entire filling and weighing link, which will in turn restrict the overall operating speed of the equipment, making it difficult to meet efficient production needs.

[0008] Therefore, a weighing and conveying integrated mechanism and a filling machine based on bottle filling are needed to solve the above problems. Summary of the invention

[0009] The purpose of the present invention is to provide a weighing and conveying integrated mechanism and a filling machine based on bottle filling, so as to reduce the cycle time required for the weighing process while ensuring accuracy, thereby achieving the purpose of ensuring filling accuracy while improving production rate.

[0010] In order to solve the above technical problems, the present invention provides an integrated weighing and conveying mechanism based on bottle filling, comprising a guardrail track, a star wheel, a weighing track and a weighing sensor;

[0011] The star wheel is rotatably mounted on one side of the guardrail track, and the rotation center coincides with the center of the arc track of the guardrail track, so as to drive the bottle body to move along the guardrail track;

[0012] Wherein, a gap is provided in the middle of the guardrail track;

[0013] The weighing track is arranged at the notch, a gap is reserved between the weighing track and the guardrail track, and the weighing sensor is connected at the bottom;

[0014] The weighing track has two arc-shaped transition sections and a raised section that match the guardrail track;

[0015] The two arc-shaped transition sections are respectively used to receive the bottles conveyed by the guardrail track and output the bottles to the guardrail track;

[0016] The convex section is located between the two arc-shaped transition sections and convex outward in a direction away from the rotation center point of the star wheel;

[0017] When the bottle body is transported from the arc-shaped transition section to the convex section under the rotational power of the star wheel, the bottle body and the star wheel are just completely separated.

[0018] Further, the weighing track includes a track plate, a first side baffle plate and a second side baffle plate;

[0019] The first side baffle, the second side baffle and the track plate form a channel for bottle movement;

[0020] The channel has the arc-shaped transition section and the convex section.

[0021] Furthermore, the middle portion of the first side baffle is convex in a direction away from the rotation center of the star wheel, and the middle portion of the second side baffle is concave in a direction away from the rotation center of the star wheel to form the convex section.

[0022] Furthermore, the first side baffle is located below the star wheel, and the second side baffle is exposed outside the star wheel.

[0023] Furthermore, the guardrail track includes a guardrail plate, a star wheel track and a bottle-carrying bottom track;

[0024] The star wheel track and the bottle-moving bottom rail are both fixedly connected to the guardrail plate;

[0025] Wherein, the gap is formed between the bottle-moving bottom rail and the star wheel track for installing the weighing track;

[0026] The side of the second side baffle plate in contact with the bottle body is located between the guardrail plate and the star wheel.

[0027] Furthermore, grooves are provided on both sides of the bottle-moving bottom rail and one end of the star wheel track;

[0028] Both ends of the track plate have flanges extending into the groove to connect the weighing track, the star wheel track and the bottle moving bottom track in series;

[0029] Wherein, the flange and the groove are always in a non-contact state.

[0030] Furthermore, the notch, the weighing track and the weighing sensor are each provided with two.

[0031] Furthermore, the weighing track can be detachably mounted on the weighing sensor.

[0032] Furthermore, the weighing sensor is fixedly mounted with a weighing head fixing plate;

[0033] A connecting block is fixedly mounted on the lower surface of the weighing track;

[0034] The connecting block is plugged into the weighing head fixing plate by interference fit.

[0035] On the other hand, the present invention further proposes a filling machine, comprising an integrated weighing and conveying mechanism based on bottle filling as described in any one of the above embodiments.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] By setting a guardrail track with a gap in the middle, and setting the weighing track at the gap to form a track path, the bottle body can be moved from the guardrail track to the weighing track under the action of the star wheel, and because the weighing track has an arc transition section and a raised section and the bottle body can be completely separated from the star wheel when it is located in the raised section. Therefore, during operation, it is only necessary to rotate the star wheel at a specific angle to control the bottle body to be located in the raised section, so as to ensure that the weighing will not be disturbed by external factors and ensure the weighing accuracy. In this process, no other steps need to be performed, that is, it is only necessary to control the rotation of the star wheel, thereby achieving the purpose of shortening the cycle time required for weighing while ensuring the weighing accuracy, so as to improve the production rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of an integrated weighing and conveying mechanism based on bottle filling in one embodiment of the present invention;

[0039] Figure 2 It is a structural schematic diagram of another perspective of the integrated weighing and conveying mechanism based on bottle filling in one embodiment of the present invention;

[0040] Figure 3 It is a structural schematic diagram of a guardrail track of an integrated weighing and conveying mechanism based on bottle filling in one embodiment of the present invention;

[0041] Figure 4 It is a schematic diagram of a bottle conveying process based on the weighing and conveying integrated mechanism for bottle filling in one embodiment of the present invention;

[0042] Figure 5 It is a schematic diagram of the local structure of the weighing track in the integrated weighing and conveying mechanism based on bottle filling in one embodiment of the present invention;

[0043] Figure 6 It is a top view of an integrated weighing and conveying mechanism based on bottle filling in one embodiment of the present invention;

[0044] Figure 7 For the present invention Figure 6 Partial cross-sectional view at AA in the middle.

[0045] Figure Number:

[0046] 1. Guardrail track; 11. Guardrail board; 12. Star wheel track; 13. Bottle bottom track;

[0047] 2. Star wheel;

[0048] 3. Weighing track; 31. Track plate; 32. First side baffle; 33. Second side baffle;

[0049] 4. Weighing sensor; 41. Scale head fixing plate;

[0050] 5. Gap;

[0051] 6. Arc transition section;

[0052] 7. Raised section;

[0053] 8. Groove;

[0054] 9. Flange;

[0055] 10. Connecting blocks. DETAILED DESCRIPTION

[0056] The following will be described in more detail with reference to the schematic diagram of the weighing and conveying integrated mechanism and filling machine based on bottle filling of the present invention, wherein the preferred embodiment of the present invention is shown, and it should be understood that the present invention described herein can be modified by a person skilled in the art, while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to a person skilled in the art, and not as a limitation of the present invention.

[0057] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and are not in exact proportions, and are only used to facilitate and clearly assist in illustrating the purpose of the embodiments of the present invention.

[0058] Embodiment 1

[0059] like Figures 1 to 4 As shown, an embodiment of the present invention proposes an integrated weighing and conveying mechanism based on bottle filling, including a guardrail track 1, a star wheel 2, a weighing track 3 and a weighing sensor 4.

[0060] The star wheel 2 is rotatably mounted on one side of the guardrail track 1 , and the center point of rotation coincides with the center of the arc track of the guardrail track 1 , so as to drive the bottle body to move along the guardrail track 1 .

[0061] It should be noted that the star wheel 2 is connected to a driving member (not shown in the figure) to drive the star wheel 2 to rotate and complete the conveyance of the bottle body.

[0062] In addition, a notch 5 is provided in the middle of the guardrail track 1 for installing the weighing track 3, so that the weighing track 3 and the guardrail track 1 are a split structure to form a track for moving the bottle body, but the two do not interfere with each other to avoid errors in the weighing structure due to interference from the guardrail track 1 during weighing, thereby ensuring the accuracy of weighing.

[0063] Specifically, the weighing track 3 is arranged at the notch 5, with a gap reserved between the weighing track 3 and the guardrail track 1, and the weighing sensor 4 is connected to the bottom.

[0064] In this embodiment, the weighing track 3 has two arc-shaped transition sections 6 and a raised section 7 that match the guardrail track 1 .

[0065] The two arc-shaped transition sections 6 are respectively used to receive the bottles transported by the guardrail track 1 and output the bottles to the guardrail track 1 , so that the bottles can smoothly transition from the guardrail track 1 to the weighing track 3 .

[0066] The raised section 7 is located between the two arc-shaped transition sections 6 , and is convex in a direction away from the rotation center of the star wheel 2 .

[0067] It should be particularly noted that the raised section 7 is interconnected with the arc-shaped transition section 6, that is, the arc-shaped trajectory of the raised section 7 deviates from the guardrail track 1, but under the pushing action of the star wheel 2, the bottle body can also be pushed from the arc-shaped transition section 6 to the raised section 7, and because the raised section 7 is convex in a direction away from the rotation center of the star wheel 2, when the bottle body is located at the raised section 7, the bottle body can be separated from the pushing bayonet of the star wheel 2 (that is, when the bottle body is transported from the arc-shaped transition section 6 to the raised section 7 under the rotational power of the star wheel 2, the bottle body and the star wheel 2 are just completely separated), so at this time, the bottle body and the star wheel 2, as well as the weighing track 3 and the guardrail track 1 are in a non-contact state, thereby effectively ensuring the measurement accuracy of the bottle weight, thereby ensuring the accuracy of subsequent filling.

[0068] The device forms a track path by setting a guardrail track 1 with a notch 5 in the middle, and setting a weighing track 3 at the notch 5, so that under the action of the star wheel 2, the bottle body can move from the guardrail track 1 to the weighing track 3, and because the weighing track 3 has an arc transition section 6 and a raised section 7 and the bottle body is completely separated from the star wheel 2 when it is located at the raised section 7. Therefore, during operation, it is only necessary to rotate the star wheel 2 to a specific angle to control the bottle body to be located at the raised section 7, so as to ensure that the weighing will not be disturbed by external factors and ensure the weighing accuracy, and no other steps need to be performed in the process, that is, it is only necessary to control the rotation of the star wheel 2. Compared with the method of using linkage control to ensure weighing accuracy in the prior art, the device achieves the purpose of shortening the cycle time required for weighing while ensuring weighing accuracy, so as to improve the production rate.

[0069] like Figure 4 and Figure 5 As shown, in this embodiment, a specific weighing track 3 is also proposed to better form the raised section 7, thereby facilitating the rapid separation between the bottle body and the star wheel 2 and ensuring the accuracy of subsequent weighing.

[0070] Specifically, the weighing track 3 includes a track plate 31 , a first side baffle plate 32 and a second side baffle plate 33 .

[0071] A channel for bottle movement is formed between the first side baffle plate 32 , the second side baffle plate 33 and the track plate 31 , and the channel has the arc-shaped transition section 6 and the raised section 7 .

[0072] It should be noted that the middle part of the first side baffle 32 is convex in the direction away from the rotation center point of the star wheel 2, and the middle part of the second side baffle 33 is concave in the direction away from the rotation center point of the star wheel 2 to form the raised section 7, so that the raised section 7 and the arc-shaped transition section 6 are not only in a connected state, but also the bottle body can be separated from the push-button of the star wheel 2 when it is located in the raised section 7, ensuring that the star wheel 2 will not form extrusion or other forces on the bottle body, thereby affecting the weighing effect of the weighing sensor 4 on the bottle body.

[0073] It should also be specially noted that, in order to ensure that the star wheel 2 can realize the rotational conveying function of the bottle body, the first side baffle 32 and the second side baffle 33 are further limited here. Specifically, the first side baffle 32 is located below the star wheel 2, and the second side baffle 33 is exposed on the outside of the star wheel 2, so that the bottle body can be located at the pushing bayonet of the star wheel 2, so as to ensure the smooth pushing of the star wheel 2, and ensure that the existence of the weighing track 3 will not interfere with the operation of the star wheel 2.

[0074] It should be particularly noted that when the bottle body is located at the raised section 7, the push-in socket of the star wheel 2 is sleeved on the outside of the bottle body, that is, the inner wall of the U-shaped chamber formed by the push-in socket is completely separated from the bottle body, and when the weighing operation is completed and the star wheel 2 rotates, the inner wall of the push-in socket contacts the bottle body to carry the bottle body to the next workstation (that is, the guardrail track 1).

[0075] Please continue reading Figure 3 In a further embodiment, a specific guardrail track 1 is also provided to improve the conveying effect of the bottle body. Specifically, the guardrail track 1 includes a guardrail plate 11, a star wheel track 12 and a bottle conveying bottom track 13.

[0076] The star wheel track 12 and the bottle moving bottom track 13 are both fixedly connected to the guardrail plate 11 .

[0077] In addition, the gap 5 is formed between the bottle-moving bottom rail 13 and the star wheel rail 12 for installing the weighing rail 3 .

[0078] It should be particularly noted that the side of the second side baffle 33 in contact with the bottle body is located between the guardrail plate 11 and the star wheel 2 to ensure that the bottle body located between the second side baffle 33 and the first side baffle 32 will not contact the guardrail plate 11 to further improve the weighing accuracy.

[0079] like Figure 5 As shown, in order to improve the stability of the bottle body being transferred between the bottle transport bottom rail 13 and the weighing track 3 and between the weighing track 3 and the star wheel track 12, the guardrail track 1 and the track plate 31 are further defined.

[0080] Specifically, grooves 8 are provided on both sides of the bottle moving bottom rail 13 and one end of the star wheel track 12, and flanges 9 extending into the grooves 8 are provided at both ends of the track plate 31 to connect the weighing track 3, the star wheel track 12 and the bottle moving bottom rail 13 in series, that is, by providing the flange 9 and the groove 8, with the flange 9 serving as a connecting transition portion, the stability of the bottle body being transferred between the star wheel track 12 and the weighing track 3 and between the weighing track 3 and the bottle moving bottom rail 13 is effectively improved.

[0081] It should be noted that the flange 9 and the groove 8 are always in a non-contact state to ensure that the measurement accuracy is not affected.

[0082] like Figure 4 As shown, in this embodiment, in order to improve the filling effect, the notch 5, the weighing track 3 and the weighing sensor 4 are all provided with two, and the transfer direction of the bottle body is as follows Figure 4 As shown in the Va direction, the weight of the bottle body is measured successively by two weighing sensors 4. For the convenience of description, the two weighing sensors 4 are named as the front weighing sensor 4 and the rear weighing sensor 4 along the Va direction.

[0083] It should be noted that the front weighing sensor 4 is used to measure the weight of the bottle itself (i.e., the empty bottle weight measurement), while the rear weighing sensor 4 is used to measure the bottle after filling to ensure that there are no impurities in the bottle before filling and to ensure the accuracy of the bottle after filling.

[0084] In other embodiments, a refilling mechanism is further provided at the next node of the rear weighing sensor 4 along the Va direction. When the weight measured by the rear weighing sensor 4 is lower than the preset parameter, refilling can be completed through the refilling mechanism to improve the overall filling effect.

[0085] like Figure 6 and Figure 7 As shown, the connection mode between the weighing track 3 and the weighing sensor 4 is defined as a detachable connection, so that the operator can quickly adjust the weighing track 3 according to the requirements (such as the specifications of the bottle body).

[0086] Specifically, the weighing sensor 4 is fixedly mounted with a weighing head fixing plate 41, and the lower surface of the weighing track 3 is fixedly mounted with a connecting block 10, and the connecting block 10 is plugged into the weighing head fixing plate 41 by interference fit, so as to facilitate the replacement of the weighing track 3.

[0087] Embodiment 2

[0088] This embodiment further proposes a filling machine based on the first embodiment, so that when the bottle body is filled and weighed, the cycle time required for the weighing process can be reduced while ensuring the accuracy, thereby achieving the purpose of ensuring the filling accuracy while improving the production rate.

[0089] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A weighing and conveying integrated mechanism based on bottle filling, characterized in that: It comprises a guardrail track (1), a star wheel (2), a weighing track (3) and a weighing sensor (4); The star wheel (2) is rotatably mounted on one side of the guardrail track (1), and the center point of rotation coincides with the center of the arc track of the guardrail track (1), so as to drive the bottle body to move along the guardrail track (1); Wherein, the guardrail track (1) has a notch (5) in the middle; The weighing track (3) is arranged at the notch (5), a gap is reserved between the weighing track (3) and the guardrail track (1), and the weighing sensor (4) is connected at the bottom; The weighing track (3) has two arc-shaped transition sections (6) and a raised section (7) that match the guardrail track (1); The two arc-shaped transition sections (6) are respectively used to receive bottles transported by the guardrail track (1) and output the bottles to the guardrail track (1); The convex section (7) is located between the two arc-shaped transition sections (6) and convex outward in a direction away from the rotation center point of the star wheel (2); When the bottle body is transported from the arc-shaped transition section (6) to the raised section (7) under the action of the rotational power of the star wheel (2), the bottle body and the star wheel (2) are just completely separated.

2. The integrated weighing and conveying mechanism based on bottle filling according to claim 1 is characterized in that: The weighing track (3) comprises a track plate (31), a first side baffle plate (32) and a second side baffle plate (33); The first side baffle plate (32), the second side baffle plate (33) and the track plate (31) form a channel for bottle movement; The channel comprises the arc-shaped transition section (6) and the convex section (7).

3. The integrated weighing and conveying mechanism based on bottle filling according to claim 2 is characterized in that: The middle portion of the first side baffle (32) is convex in a direction away from the rotation center point of the star wheel (2), and the middle portion of the second side baffle (33) is concave in a direction away from the rotation center point of the star wheel (2), so as to form the convex section (7).

4. The integrated weighing and conveying mechanism based on bottle filling according to claim 3 is characterized in that: The first side baffle (32) is located below the star wheel (2), and the second side baffle (33) is exposed outside the star wheel (2).

5. The integrated weighing and conveying mechanism based on bottle filling according to claim 4 is characterized in that: The guardrail track (1) comprises a guardrail plate (11), a star wheel track (12) and a bottle-carrying bottom track (13); The star wheel track (12) and the bottle-moving bottom track (13) are both fixedly connected to the guardrail plate (11); Wherein, the gap (5) is formed between the bottle-moving bottom rail (13) and the star wheel rail (12) for installing the weighing rail (3); The side of the second side baffle (33) in contact with the bottle body is located between the guardrail plate (11) and the star wheel (2).

6. The integrated weighing and conveying mechanism based on bottle filling according to claim 1, characterized in that: Both sides of the bottle-moving bottom rail (13) and one end of the star wheel track (12) are provided with grooves (8); Both ends of the track plate (31) have flanges (9) extending into the groove (8) to connect the weighing track (3), the star wheel track (12) and the bottle moving bottom track (13) in series; The flange (9) and the groove (8) are always in a non-contact state.

7. The integrated weighing and conveying mechanism based on bottle filling according to claim 1, characterized in that: The notch (5), the weighing track (3) and the weighing sensor (4) are each provided with two.

8. The integrated weighing and conveying mechanism based on bottle filling according to claim 1, characterized in that: The weighing track (3) is detachably mounted on the weighing sensor (4).

9. The integrated weighing and conveying mechanism based on bottle filling according to claim 8, characterized in that: The weighing sensor (4) is fixedly mounted with a weighing head fixing plate (41); A connecting block (10) is fixedly mounted on the lower surface of the weighing track (3); The connecting block (10) is plugged into the weighing head fixing plate (41) by interference fit.

10. A filling machine, characterized in that: It comprises an integrated weighing and conveying mechanism based on bottle filling as described in any one of claims 1-9.

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