Material taking device

Abstract

The utility model discloses a material taking device which comprises a support, a driving piece, a plurality of connecting rods and a plurality of material taking carriers, a guide rail and a positioning guide piece are arranged on the support, the material taking carriers are arranged on the guide rail in a sliding mode, the connecting rods are sequentially hinged through pin shafts, and the positioning guide piece is arranged on the driving piece. The multiple material taking carriers are rotationally connected with the multiple connecting rods in a one-to-one correspondence mode, the driving part is of a telescopic structure, the two ends of the driving part are each connected with one material taking carrier, and when the number of the connecting rods is even, the pin shaft located in the middle is arranged on the positioning guiding part in a sliding mode; when the number of the connecting rods is an odd number, the middle section of the connecting rod located in the middle is arranged on the positioning guide piece in a sliding mode. The utility model has the advantages that the structure is simple, the number of parts is small, the processing and assembling precision requirements are reduced, the accumulative error is reduced, and the variable pitch precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of food and pharmaceutical packaging machinery technology, and in particular to a material handling device. Background Technology

[0002] In the pharmaceutical manufacturing process, some packaging materials (such as implant syringes) require the use of clamps for transfer due to their special shapes. The spacing between packaging materials at different workstations may be different, so variable spacing is required.

[0003] Currently, pitch control in products typically employs rotary pitch control modules driven by servo motors, parallelogram linkage pitch control, or push-block pitch control devices, but each has its own drawbacks. For example, rotary pitch control modules driven by servo motors are too expensive, parallelogram linkage mechanisms have many parts and require high machining and assembly precision, and other pitch control mechanisms are bulky and cannot move in a centered position, leading to large cumulative errors, which limits their use in certain applications. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a material handling device with a simple structure, few parts, which is conducive to reducing the requirements for processing and assembly accuracy and reducing cumulative errors.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A material handling device includes a support, a drive unit, multiple connecting rods, and multiple material handling carriers. The support is provided with a guide rail and a positioning guide. The multiple material handling carriers are slidably disposed on the guide rail. The multiple connecting rods are sequentially hinged by pins. The multiple material handling carriers are rotatably connected to the multiple connecting rods in a one-to-one correspondence. The drive unit has a telescopic structure and is connected to one of the material handling carriers at each end. When the number of connecting rods is even, the pin located in the middle is slidably disposed on the positioning guide. When the number of connecting rods is odd, the middle section of the connecting rod located in the middle is slidably disposed on the positioning guide.

[0007] As a further improvement to the above technical solution: the material handling carrier is provided with a slider that cooperates with the guide rail.

[0008] As a further improvement to the above technical solution: the positioning guide is a slide groove, and a rolling bearing that cooperates with the slide groove is provided on the pin shaft located in the middle, or a rolling bearing that cooperates with the slide groove is provided in the middle section of the connecting rod located in the middle.

[0009] As a further improvement to the above technical solution: the driving component is connected between two adjacent material handling carriers.

[0010] As a further improvement to the above technical solution: the driving component is a cylinder.

[0011] As a further improvement to the above technical solution: the support is provided with a first adjustable limiting member to limit the stroke of the piston rod of the cylinder.

[0012] As a further improvement to the above technical solution: one of the material handling carriers is provided with a second limiting member to limit the stroke of the cylinder body.

[0013] As a further improvement to the above technical solution: the material handling carrier is a gripper.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: The material handling device disclosed in this utility model has a telescopic drive component that can directly drive two material handling carriers connected to the drive component to move along the guide rail. It also drives other material handling carriers to move along the guide rail via connecting rods. The guide rails provide guidance for the movement of the material handling carriers, ensuring motion accuracy and thus achieving the purpose of adjusting the spacing between the material handling carriers. Compared with parallelogram-structured connecting rods for pitch adjustment, this utility model significantly reduces the number of connecting rods, resulting in a simpler structure, which helps save costs and reduces the requirements for processing and assembly accuracy. Furthermore, the pin located in the middle is slidably mounted on the positioning guide component, or the middle section of the connecting rod located in the middle is slidably mounted on the positioning guide component, achieving centered movement, reducing accumulated errors, and improving pitch adjustment accuracy. The drive component is mounted on the material handling carrier, saving space and reducing the size of the device, which is beneficial for use in confined spaces.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the material handling device of this utility model from a first-view perspective.

[0017] Figure 2 This is a three-dimensional structural diagram of the material handling device of this utility model from a second perspective.

[0018] The labels in the diagram represent: 1. Support; 11. Guide rail; 12. Positioning guide; 13. First limiting component; 2. Drive component; 3. Connecting rod; 31. Pin; 32. Rolling bearing; 4. Material handling carrier; 41. Slider; 42. Second limiting component; 43. Connecting column. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Figures 1 to 2 This invention illustrates one embodiment of the material handling device. The device includes a support 1, a drive component 2, multiple connecting rods 3, and multiple material handling carriers 4 (specifically four). The support 1 is equipped with a guide rail 11 and a positioning guide component 12. The multiple material handling carriers 4 are slidably mounted on the guide rail 11. The multiple connecting rods 3 are sequentially hinged via pins 31, and the multiple material handling carriers 4 are rotatably connected to the multiple connecting rods 3 in a one-to-one correspondence (see [link]). Figure 1Preferably, the material handling carrier 4 is provided with a connecting column 43, the upper end of which is movably inserted into the connecting rod 3. The driving member 2 is a telescopic structure and is connected to a material handling carrier 4 at both ends. When the number of connecting rods 3 is even, the pin 31 located in the middle is slidably disposed on the positioning guide member 12 (for example, if four rods 3 need to be hinged in sequence by three pins 31, then the second pin 31 is slidably disposed on the positioning guide member 12). When the number of connecting rods 3 is odd, the middle section of the connecting rod 3 located in the middle is slidably disposed on the positioning guide member 12 (for example, when there are three connecting rods 3, the middle section of the second connecting rod 3 is slidably disposed on the positioning guide member 12).

[0024] In this embodiment, the material handling device uses a telescopic drive unit 2 to directly drive two material handling carriers 4 connected to the drive unit 2 to move along the guide rail 11. It also drives other material handling carriers 4 to move along the guide rail 11 via connecting rods 3. The guide rail 11 provides guidance for the movement of the material handling carriers 4, ensuring motion accuracy and thus achieving the purpose of adjusting the spacing between the material handling carriers 4. Compared to using a parallelogram-structured connecting rod for pitch adjustment, this embodiment significantly reduces the number of connecting rods 3, resulting in a simpler structure, which helps save costs and lowers the requirements for processing and assembly accuracy. Furthermore, the central pin 31 is slidably mounted on the positioning guide 12, or the middle section of the connecting rod 3 is slidably mounted on the positioning guide 12, achieving centered movement, reducing accumulated errors, and improving pitch adjustment accuracy. The drive unit 2 is mounted on the material handling carriers 4, saving space and reducing the overall size of the device, making it suitable for use in confined spaces.

[0025] See Figure 2 In this embodiment, the material handling carrier 4 is provided with a slider 41 that cooperates with the guide rail 11. The cooperation between the guide rail 11 and the slider 41 provides guidance for the movement of the material handling carrier 4, reduces movement resistance and wear, and makes the movement process smoother and more stable.

[0026] Furthermore, in this embodiment, the positioning guide 12 is a sliding groove, and a rolling bearing 32 that mates with the sliding groove is provided on the central pin 31, or a rolling bearing 32 that mates with the sliding groove is provided in the middle section of the connecting rod 3. When the driving member 2 extends or retracts in the left-right direction, the connecting rod 3 drives the rolling bearing 32 to slide in the sliding groove in the front-back direction, which helps to reduce motion resistance and wear. Moreover, the use of sliding groove guidance helps to keep each connecting rod 3 at the same height.

[0027] In a preferred embodiment, the drive unit 2 is connected between two adjacent material handling carriers 4, which can reduce the requirements for the extension stroke of the drive unit 2.

[0028] In this embodiment, the driving component 2 is a cylinder. Accordingly, the cylinder body is mounted on one of the material handling carriers 4, and moves together with the material handling carrier 4 during adjustment. The piston rod of the cylinder is mounted on the other material handling carrier 4. Cylinders offer good reliability and low cost. Of course, in other embodiments, the driving component 3 can also be a hydraulic cylinder, electric cylinder, etc.

[0029] See details Figure 2 In this embodiment, the support 1 is provided with a position-adjustable first limiting member 13 to limit the stroke of the cylinder piston rod. The first limiting member 13 can be, for example, a limiting block, a stop bar, etc., and its position is adjusted through a threaded connection or a slotted hole connection with the support 1. Since conventional cylinders do not have stroke adjustment functionality, the stroke of the cylinder opening (i.e., extending) is determined when the piston rod contacts the first limiting member 13, resulting in a simple and reliable structure.

[0030] Furthermore, in this embodiment, one of the material handling carriers 4 is provided with a second limiting member 42 to limit the stroke of the cylinder body. Referring to the first limiting member 13, the second limiting member 42 can be a limiting block, a stop bar, etc., and can be used to determine the stroke of the cylinder closing (i.e., retraction).

[0031] In a preferred embodiment, the material carrier 4 is a gripper, which facilitates the gripping of pre-filled needle-type products. Of course, in other embodiments, the material carrier 4 can also be of other forms.

[0032] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A material handling device, characterized in that: The device includes a support (1), a drive unit (2), multiple connecting rods (3), and multiple material handling carriers (4). The support (1) is provided with a guide rail (11) and a positioning guide (12). The multiple material handling carriers (4) are slidably disposed on the guide rail (11). The multiple connecting rods (3) are sequentially hinged by pins (31). The multiple material handling carriers (4) are rotatably connected to the multiple connecting rods (3) in a one-to-one correspondence. The drive unit (2) is a telescopic structure and is connected to a material handling carrier (4) at each end. When the number of connecting rods (3) is even, the pin (31) located in the middle is slidably disposed on the positioning guide (12). When the number of connecting rods (3) is odd, the middle section of the connecting rod (3) located in the middle is slidably disposed on the positioning guide (12).

2. The material handling device according to claim 1, characterized in that: The material handling carrier (4) is provided with a slider (41) that cooperates with the guide rail (11).

3. The material handling device according to claim 1, characterized in that: The positioning guide (12) is a groove, and a rolling bearing (32) that cooperates with the groove is provided on the pin (31) located in the middle, or a rolling bearing (32) that cooperates with the groove is provided in the middle section of the connecting rod (3) located in the middle.

4. The material handling device according to claim 1, characterized in that: The drive unit (2) is connected between two adjacent material handling carriers (4).

5. The material handling device according to claim 4, characterized in that: The driving component (2) is a cylinder.

6. The material handling device according to claim 5, characterized in that: The support (1) is provided with a first adjustable limiting member (13) to limit the stroke of the piston rod of the cylinder.

7. The material handling device according to claim 5, characterized in that: One of the material handling carriers (4) is provided with a second limiting member (42) to limit the stroke of the cylinder body.

8. The material handling device according to any one of claims 1 to 7, characterized in that: The material handling carrier (4) is a gripper.

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