Online automatic lifting type weighing mechanism

Abstract

The utility model relates to an on-line automatic lifting type weighing mechanism, comprising a rack which is perpendicular to the length direction of a product driving chain plate of a production line and is located below the product driving chain plate, and a powder suction station is arranged at the top of the product driving chain plate; the jacking part is mounted at the bottom of the rack, and the jacking end of the jacking part can extend out of the top surface of the rack; the supporting plate is mounted at the jacking end of the jacking part; the number of the electronic scales corresponds to the number of product stations on the product driving chain plate, the electronic scales are installed on the supporting plate and are in linkage with the jacking part, the top of each electronic scale is provided with a piece jacking head corresponding to the product station, and the piece jacking heads lift products to be separated from the product driving chain plate for weighing; and the jacking part and the electronic scale are electrically connected with a control system of the product driving chain plate. According to the utility model, the structure is simple, the jacking part is precisely linked with the product driving chain plate, the weighing action is completed in a non-stop state, the product is continuously operated on line in the whole process from filling, weighing to packaging, and the comprehensive efficiency of the production line is improved by more than 30%.

Description

TECHNICAL FIELD

[0001] The utility model relates to filling weighing technical field more particularly relates to an online automatic lifting type weighing mechanism. BACKGROUND

[0002] In the field of precise filling production of powder products such as food, medicine, weight detection after filling is the key process link to ensure product quality up to standard. The weighing mode widely used in the industry at present has significant process defects: after completing the filling process, the unpackaged product is removed from the production line conveying system as a whole and is transferred to an independently arranged electronic scale for offline weighing detection, and is returned to the packaging station again after weighing. The traditional operation mode has the following technical pain points: (1) the material flow path is cut into multiple discrete links, resulting in interruption of production continuity; (2) frequent material transfer operations significantly increase the production cycle time, seriously restricting the overall efficiency of the production line; (3) the number of manual intervention links increases, and there is a risk of secondary pollution; (4) real-time weight feedback and online process adjustment cannot be realized.

[0003] Although there are some online weighing attempts in the prior art, most of the schemes have problems such as complex structure, insufficient weighing precision, or poor work station coordination. In particular, for an automated production line with multiple work stations in parallel, conventional weighing devices cannot achieve: (1) mechanical coordination of simultaneous and accurate lifting of multiple containers; (2) timing matching of the weighing process and the conveying system; (3) anti-vibration interference capability during dynamic weighing. These technical bottlenecks directly result in the difficulty of forming a seamless intelligent production system for the filling-weighing-packaging process chain, which has become a key obstacle to the upgrading of the industry to intelligent manufacturing.

[0004] Therefore, how to provide an online automatic lifting type weighing mechanism is a problem that needs to be solved by those skilled in the art. INVENTION CONTENTS

[0005] Therefore, the purpose of the utility model is to provide an online automatic lifting type weighing mechanism to solve the deficiencies of the existing weighing of products after filling.

[0006] The technical scheme provided by the utility model is an online automatic lifting type weighing mechanism, comprising:

[0007] A rack is perpendicular to the length direction of the product driving chain plate of the production line and is located below the product driving chain plate, and a powder suction station is arranged at the top of the product driving chain plate;

[0008] A jacking part is installed at the bottom of the rack, and the jacking end of the jacking part can extend out of the top surface of the rack;

[0009] A supporting plate is installed on the jacking end of the jacking part;

[0010] The electronic scale is in correspondence with the product station number of the product driving chain plate, and is installed on the supporting plate and connected with the jacking part.

[0011] The jacking part and the electronic scale are electrically connected with the control system of the product driving chain plate.

[0012] According to the weighing mechanism, the bottom auxiliary support of the jacking part is fixed on the bottom of the frame, and the top surface of the frame has a channel for the jacking end of the jacking part.

[0013] According to the weighing mechanism, the jacking part is a gas buffer air cylinder or a hydraulic cylinder.

[0014] According to the weighing mechanism, the housing of the electronic scale is detachably connected with the supporting plate.

[0015] According to the weighing mechanism, the top head is made of polyurethane, and the bottom contact surface of the product is flexibly abutted.

[0016] According to the weighing mechanism, the hardness range of the top head is Shore A 50-70 degrees.

[0017] According to the weighing mechanism, the electronic scale is more than six.

[0018] According to the weighing mechanism, the control system of the product driving chain plate is pre-set with a weight threshold of a single product, and the product exceeding the weight threshold is separated by an end-of-line rejection mechanism.

[0019] Compared with the prior art, the online automatic lifting type weighing mechanism has the following beneficial effects:

[0020] 1、The online automatic lifting type weighing mechanism has simple structure, the jacking part driven by the gas buffer air cylinder (or the hydraulic cylinder) is precisely connected with the product driving chain plate (the product driving chain plate is servo driven, and the original point limiting pulse signal is connected with the lifting action time sequence of the jacking part.), and the weighing action is completed in the non-stop state, so that the process interruption problem caused by the product moving out of the production line in the traditional weighing process is completely solved.

[0021] 2, The utility model discloses a plurality of electronic scales (such as 6 stations and above) matched with the number of product stations, cooperate with the flexible contact design (Shao A 50-70 degrees) of polyurethane top piece head, effectively absorb mechanical vibration in synchronous jacking process, ensure that dynamic weighing precision reaches ±0.03g (better than industry conventional ±0.1g standard).

[0022] 3, The rigid connection design of the frame and the auxiliary support ensures the vertical precision of the jacking action, and the supporting plate can quickly adjust the number and layout of the electronic scale, and is suitable for different specifications of production lines (such as 4-12 stations). DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the provided drawings without creative labor.

[0024] Figure 1 A structure schematic diagram of an online automatic lifting type weighing mechanism is provided in the utility model.

[0025] Figure 2 The connection schematic diagram of the electronic scale and the supporting plate is shown. DETAILED DESCRIPTION

[0026] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0027] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the utility model.

[0028] At present, the weighing mode commonly used in the industry is that after the product completes the filling process, the whole product without packaging is moved away from the production line conveying system, transported to an independently arranged electronic scale for offline weighing detection, and then returned to the packaging station after weighing. This traditional operation mode has many disadvantages. The existing part of online weighing attempts have complex structure, insufficient weighing precision or poor station coordination.

[0029] In view of this, the technical scheme provided by the utility model is as follows: Figure 1 and 2 As shown in the drawings, the embodiment provides an online automatic lifting type weighing mechanism integrated in a filling production line, which is used for online weighing of the product C after filling and powder suction and before packaging. The mechanism comprises the following components: a rack 1, a jacking part 2, a supporting plate 3, an electronic scale 4 and a top piece head 5.

[0030] The rack 1 is perpendicular to the length direction of a product driving chain plate L of the production line and is located below the product driving chain plate L. The product driving chain plate L is a closed-loop conveying system driven by a servo motor, and a powder suction station 6 is arranged at the top of the product driving chain plate L corresponding to the weighing station, which is used for suction of the powder remaining in the cup mouth of the product C before weighing.

[0031] The jacking part 2 is installed at the bottom of the rack 1, and the jacking end of the jacking part 2 can extend out of the top surface of the rack 1.

[0032] The supporting plate 3 is installed on the jacking end of the jacking part 2.

[0033] The number of the electronic scales 4 corresponds to the number of product stations on the product driving chain plate L, and the electronic scales 4 are installed on the supporting plate 3 and are linked with the jacking part 2. Each electronic scale 4 has a top piece head 5 corresponding to the product station at the top of the electronic scale 4, and the top piece head 5 lifts the product C to separate the product C from the product driving chain plate L for weighing.

[0034] The jacking part 2 and the electronic scale are electrically connected with the control system of the product driving chain plate L. The product driving chain plate L is driven by a servo motor, and the original point limit pulse signal is linked with the lifting action timing sequence of the jacking part 2.

[0035] The utility model has simple structure, precise linkage between the jacking part and the product driving chain plate, weighing operation is completed without stopping the machine, and the problem of process interruption caused by moving the product out of the production line in the traditional weighing process is completely solved. The product is continuously operated online from filling, weighing to packaging, and the comprehensive efficiency of the production line is improved by more than 30%.

[0036] Advantageously, the bottom auxiliary support 21 of the jacking part 2 is fixed to the bottom of the rack 1, and the top surface of the rack 1 has a passage for the jacking end of the jacking part 2 to pass through. The auxiliary support 21 can be an L-shaped steel plate, which is rigidly connected to the bottom of the rack 1 by bolts, to ensure the stability of the jacking action.

[0037] In an embodiment of the utility model, the jacking part 2 is a gas buffer air cylinder or a hydraulic cylinder.

[0038] In another embodiment of the utility model, the supporting plate 3 is a rectangular metal plate, which is fixed to the jacking end of the jacking part 2 by bolts. Six high-precision electronic scales 4 are installed on the supporting plate 3 (the number can be adjusted according to the requirements of the work station), and each electronic scale 4 is detachably rigidly connected to the supporting plate 3 by screws. The top of the electronic scale 4 is provided with a top piece head 5 made of polyurethane, and the hardness is Shore A 60 degrees (which can be selected within the range of 50-70 degrees). The contact surface of the top piece head 5 can be a convex column, which forms a flexible abutment with the concave structure at the bottom of the product C, to avoid damaging the product during the jacking process.

[0039] In the utility model, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] Advantageously, the weight threshold of a single product C is preset in the control system of the product driving chain plate L, and the product C exceeding the weight threshold is separated by the end rejection mechanism of the production line. The jacking part 2 and the electronic scale 4 are electrically connected to the PLC control system of the product driving chain plate L. The weight threshold of a single product C (for example, 2g±0.05g) is preset in the PLC, and the following function modules can be configured, it is worth noting that the following modules are not the protection content of the utility model, but are auxiliary designs for the convenience of realizing the utility model, which belong to the filling line system, and can include the following function modules: weighing trigger module: receiving the origin limit pulse signal of the product driving chain plate L, triggering the jacking part 2 to rise; data acquisition module: real-time reading of the weighing data of the electronic scale 4, which can eliminate the conveying vibration interference through a dynamic filtering algorithm; weight determination module: comparing the actual weight with the threshold, and marking the out-of-tolerance product C (such as weight≥2.05g or≤1.95g) as an abnormal product; action control module: controlling the jacking part 2 to descend and reset after weighing is completed, and simultaneously starting the end rejection mechanism to separate the out-of-tolerance product.

[0041] The product C after powder suction is moved to the weighing station (a station after powder suction) by the product driving chain plate L; the PLC control system receives the original point signal of the product driving chain plate L, drives the lifting part 2 to rise, the product C is lifted by the top piece head 5 to separate from the product station of the chain plate L, and the electronic scale 4 completes weighing; the control system receives the feedback of the electronic scale, judges the weight of the product C, and the unqualified product is memorized in the station of the product driving chain plate L and is eliminated subsequently.

[0042] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0043] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An in-line automatic lift-and-weigh mechanism, characterized by, The application relates to a machine frame (1) for weighing products (C) on a product driving chain plate (L) of a production line, comprising: a machine frame (1) arranged below the product driving chain plate (L) and perpendicular to the length direction of the product driving chain plate (L), wherein the product driving chain plate (L) is provided with a powder suction station (6) at the top; a jacking part (2) installed at the bottom of the machine frame (1) and having a jacking end capable of extending out of the top surface of the machine frame (1); a supporting plate (3) installed on the jacking end of the jacking part (2); a plurality of electronic scales (4) corresponding to the number of product stations on the product driving chain plate (L) and installed on the supporting plate (3) and connected with the jacking part (2), wherein each electronic scale (4) is provided with a top piece head (5) corresponding to the product station at the top, and the top piece head (5) is used for lifting the product (C) to separate the product (C) from the product driving chain plate (L) for weighing; wherein the jacking part (2) and the electronic scale (4) are electrically connected with the control system of the product driving chain plate (L).

2. An in-line automatic lifting type weighing mechanism according to claim 1, characterized in that, The bottom auxiliary support (21) of the jacking part (2) is fixed to the bottom of the machine frame (1), and the top surface of the machine frame (1) is provided with a channel for the jacking end of the jacking part (2) to pass through.

3. An in-line automatic lifting type weighing mechanism according to claim 1, wherein The jacking part (2) is a gas buffer cylinder or a hydraulic cylinder.

4. An in-line automatic lifting type weighing mechanism according to claim 1, wherein The shell of the electronic scale (4) is detachably connected with the supporting plate (3).

5. An in-line automatic lifting type weighing mechanism according to claim 1, wherein The top piece head (5) is made of polyurethane, and the bottom contact surface of the top piece head (5) is flexibly abutted with the product (C).

6. An in-line automatic lifting type weighing mechanism according to claim 5, wherein The hardness of the top piece head (5) ranges from Shore A 50 to 70 degrees.

7. An in-line automatic lifting type weighing mechanism according to any one of claims 1 to 6, characterized in that, The electronic scale (4) is more than six.

8. An in-line automatic lifting type weighing mechanism according to any one of claims 1 to 6, characterized in that, The control system of the product driving chain plate (L) is provided with a weight threshold of a single product (C), and the product (C) exceeding the weight threshold is separated by a rejection mechanism at the end of the production line.

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