Double-layer circulation assembly line

Abstract

The utility model discloses a double-layer circulation assembly line and belongs to the field of automation. An upper-layer assembly line is parallel to a lower-layer assembly line, and two lifters are located at the two ends of the upper-layer assembly line and the lower-layer assembly line respectively. A lifting structure of each lifter comprises a lifting driving part, a lifting chain in transmission connection with the lifting driving part and a supporting plate fixedly connected with the lifting chain, a conveying driving assembly of the conveying structure and a conveying line are installed on the supporting plate, and the projection of the conveying line and the projections of the upper layer assembly line and the lower layer assembly line are located on the same straight line. The lifting driving piece drives the supporting plate through the lifting chain, the supporting plate drives the conveying structure to reciprocate between the upper-layer assembly line and the lower-layer assembly line, the conveying line works to drive the empty jigs to move in the horizontal direction, and circulation of the jigs between the upper-layer assembly line and the lower-layer assembly line is achieved. The jig can automatically return to the initial position of the assembly line, the product returns to the empty jig, the jig is recycled, and manual carrying is not needed.

Description

Technical Field

[0001] This utility model relates to the field of automation, and in particular to a double-layer circulating production line. Background Technology

[0002] An assembly line, also known as a production line, is an industrial production method in which each production unit focuses on handling only one segment of the work to improve efficiency and output.

[0003] Currently, existing production lines all use drive devices to transport jigs containing products along conveyor lines. After the products are removed manually or mechanically, the jigs often need to be removed manually and placed into the production line where the products are placed. The products to be transported are then placed into the jigs, and the jigs with the products placed are then placed into another production line manually to remove the products. This process cannot be automated. In addition, manual operation is not only slow but also requires multiple people, resulting in low efficiency and high costs. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a double-layer circulating production line in which the fixture can automatically return to the initial position of the production line.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] A double-layer circulating production line includes an upper production line, a lower production line, and multiple workstations. The upper production line is parallel to the lower production line and is located above the lower production line. The multiple workstations are arranged along the extension direction of the upper production line. The double-layer circulating production line also includes two elevators, which are located at opposite ends of the upper and lower production lines, respectively. Each elevator includes a lifting structure and a conveying structure. The lifting structure includes a lifting drive component, a lifting chain that is driven by the lifting drive component, and a chain that is fixedly connected to the lifting chain. The pallet and the conveying structure include a conveying drive assembly and a conveyor line connected to the conveying drive assembly. The conveying drive assembly and the conveyor line are mounted on the pallet. The projection of the conveyor line is on the same straight line as the projections of the upper and lower assembly lines. The lifting drive unit drives the pallet through the lifting chain. The pallet drives the conveying structure to reciprocate between the upper and lower assembly lines. The operation of the conveyor line drives the empty fixture to move horizontally, realizing the circulation of the fixture between the upper and lower assembly lines.

[0007] Furthermore, the pallet includes two plates and a crossbeam connecting the two plates, the conveyor line is installed on the crossbeam, and the conveyor drive assembly is installed on the pallet.

[0008] Furthermore, the double-layer circulating production line also includes a frame, which includes a base plate, a protective shell, and a baffle. The protective shell and the baffle are fixed to the base plate. The lifting structure is installed on the protective shell. The conveying structure is located between the protective shell and the baffle. An opening is formed between the protective shell and the baffle. The conveying line is located on one side of the opening, and the upper production line and the lower production line are located on the other side of the opening.

[0009] Furthermore, the protective shell is provided with a clearance groove, which is arranged in a vertical direction, and the support plate passes through the clearance groove and moves along the clearance groove.

[0010] Furthermore, the lifting structure also includes a transmission component, which is connected to the lifting drive component. The lifting drive component drives the transmission component to rotate. There are two lifting chains, which are respectively sleeved on both ends of the transmission component. The two lifting chains are symmetrically arranged about the lifting drive component and the support plate.

[0011] Furthermore, the lifting structure also includes a fixed rod, the transmission component is mounted on the fixed rod, and the transmission component is located at the top of the lifting drive component.

[0012] Furthermore, the lifting structure also includes a guide rod, and the support plate is slidably mounted on the guide rod.

[0013] Furthermore, the conveying drive assembly includes a conveying drive component, a conveying chain, and a transmission rod. The conveying drive component is fixed to the pallet, the conveying chain meshes with gears on the conveying drive component and the transmission rod, and both ends of the transmission rod are respectively engaged with both sides of the conveying line.

[0014] Furthermore, the upper pipeline and the lower pipeline are a double-speed chain.

[0015] Compared to existing technologies, this utility model's double-layer circulating assembly line includes an upper assembly line, a lower assembly line, and multiple workstations. The upper assembly line is parallel to the lower assembly line and located above it. The multiple workstations are arranged along the extension direction of the upper assembly line. The double-layer circulating assembly line also includes two elevators, located at opposite ends of the upper and lower assembly lines. Each elevator includes a lifting structure and a conveying structure. The lifting structure includes a lifting drive component, a lifting chain connected to the lifting drive component, and a pallet fixedly connected to the lifting chain. The conveying structure includes a conveying drive assembly. The components and the conveyor line connected to the conveyor drive assembly are mounted on a pallet. The projection of the conveyor line is on the same straight line as the projections of the upper and lower assembly lines. The lifting drive assembly drives the pallet through a lifting chain. The pallet drives the conveyor structure to move back and forth between the upper and lower assembly lines. The operation of the conveyor line drives the empty fixture to move horizontally, realizing the circulation of the fixture between the upper and lower assembly lines. Through the above design, the fixture can automatically return to the initial position of the assembly line, and the product returns to the empty fixture, so that the fixture can be recycled without manual handling. Attached Figure Description

[0016] Figure 1 This is a perspective view of the double-layer circulating production line of this utility model;

[0017] Figure 2 for Figure 1 A 3D view of the elevator in a double-layer circulating production line;

[0018] Figure 3 for Figure 2 A 3D view of the internal structure of the elevator;

[0019] Figure 4 for Figure 2 A 3D view of the lifting structure of the elevator;

[0020] Figure 5 for Figure 2 A 3D view of the conveyor structure of the elevator;

[0021] Figure 6 for Figure 2 Another three-dimensional view of the internal structure of the elevator.

[0022] In the diagram: 10, upper assembly line; 20, lower assembly line; 30, workstation; 40, elevator; 41, frame; 410, base plate; 411, protective shell; 4110, clearance groove; 412, baffle; 413, opening; 42, lifting structure; 421, lifting drive component; 423, transmission component; 424, lifting chain; 425, fixing rod; 426, guide rod; 427, pallet; 4270, plate; 4271, crossbeam; 43, conveying structure; 430, conveying drive assembly; 4301, conveying drive component; 4302, conveying chain; 4303, transmission rod; 431, conveyor line; 200, fixture. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figure 1 The double-layer circulating production line includes an upper production line 10, a lower production line 20, multiple workstations 30, and an elevator 40.

[0027] The upper assembly line 10 is used to transport products, which are placed on fixtures. Multiple devices process and inspect the products. The lower assembly line 20 is located below the upper assembly line 10 and is parallel to it. The lower assembly line 20 is used to transport empty fixtures. Used fixtures return to their initial position for reuse, avoiding the need to move empty fixtures. The conveying direction of the lower assembly line 20 is opposite to that of the upper assembly line 10.

[0028] Multiple workstations 30 are set up along the upper assembly line 10, where products are processed and inspected.

[0029] There are two elevators 40, located at opposite ends of the upper assembly line 10. One elevator 40 receives an empty fixture from the upper assembly line 10 and moves it downwards to the lower assembly line 20, whereupon the lower assembly line 20 moves the fixture in the opposite direction. The other elevator 40 receives an empty fixture from the lower assembly line 20 and moves it upwards to the upper assembly line 10, returning the fixture to its initial position.

[0030] Please see Figures 2 to 6 Each elevator 40 includes a frame 41, a lifting structure 42, and a conveying structure 43.

[0031] The frame 41 includes a base plate 410, a protective shell 411, and a baffle 412. The protective shell 411 and the baffle 412 are fixed to the base plate 410. A lifting structure 42 is installed inside the protective shell 411, and a conveying structure 43 is located between the protective shell 411 and the baffle 412. An opening 413 is formed between the end of the protective shell 411 and the end of the baffle 412.

[0032] The protective shell 411 is generally rectangular. The surface of the protective shell 411 facing the baffle 412 is provided with a clearance groove 4110 for the support plate 427 to slide up and down.

[0033] The lifting structure 42 includes a lifting drive component 421, a transmission component 423, a lifting chain 424, a fixing rod 425, a guide rod 426, and a support plate 427. The lifting drive component 421 is fixed to the base plate 410 and drives the transmission component 423 to rotate. Specifically, the lifting drive component 421 is a motor, and it is vertically arranged, with the transmission component 423 located above it. There are two lifting chains 424, which are sleeved on both ends of the transmission component 423 and are symmetrically arranged about the lifting drive component 421. The lifting chains 424 are fixed to the ends of the support plate 427 and pull the support plate 427 to move vertically. The fixing rod 425 and the guide rod 426 are fixed to the base plate 410, with the fixing rod 425 parallel to the guide rod 426. The support plate 427 is slidably mounted on the guide rod 426 and the fixed rod 425, and the transmission component 423 is mounted on the fixed rod 425.

[0034] The pallet 427 includes two plates 4270 and two crossbeams 4271. The two plates 4270 are parallel to each other, and the crossbeams 4271 are located between the two plates 4270, with both ends of the crossbeams 4271 connected to the two plates 4270 respectively. The plates 4270 extend out of the clearance grooves 4110, and the conveying structure 43 is installed on the pallet 427.

[0035] The conveying structure 43 includes a conveying drive assembly 430 and two conveyor lines 431. The conveying drive assembly 430 drives the two conveyor lines 431 to work. The conveying drive assembly 430 includes a conveying drive component 4301, a conveying chain 4302, and a transmission rod 4303. The conveying drive component 4301 is fixed to the pallet 427. The conveying chain 4302 is sleeved on the gears of the conveying drive component 4301 and the transmission rod 4303. The conveying drive component 4301 drives the transmission rod 4303 to rotate through the conveying chain 4302, thereby driving the conveying chains of the two conveyor lines 431 to work.

[0036] When using a double-layer circulating production line, the fixture 200 is located on the upper production line 10, and the fixture 200 is loaded with products. The fixture 200 moves on the upper production line 10, and multiple workstations 30 process or inspect the products on the upper production line 10 respectively. After processing, the product is picked up by a robotic arm, leaving fixture 200 unloaded. The conveyor line 431 of the elevator 40 on one side receives the empty fixture 200. The lifting drive 421 drives the conveyor line 431 downward via the lifting chain 424, moving the empty fixture 200 to the horizontal level of the lower assembly line 20. The conveyor line 431 then moves the empty fixture 200 to the lower assembly line 20. The lower assembly line 20 moves the empty fixture 200 in the opposite direction to the elevator 40 at the other end. The elevator 40 at the other end receives the empty fixture 200 from the lower assembly line 20. The lifting drive 421 drives the conveyor line 431 upward via the lifting chain 424 to the upper assembly line 10. The conveyor line 431 then moves the empty fixture 200 to the upper assembly line 10, causing the fixture 200 to cycle back to its initial position for the next product loading. This allows the fixture 200 to be reused without manual handling.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. Double-layer circulation assembly line, comprising an upper layer assembly line, a lower layer assembly line and a plurality of work stations, the upper layer assembly line being parallel to the lower layer assembly line and the upper layer assembly line being located above the lower layer assembly line, a plurality of the work stations being arranged along the extension direction of the upper layer assembly line, characterized in that: The double-layer circulation assembly further comprises two elevators, each of which is arranged at one end of the upper-layer assembly and the lower-layer assembly, and each of the elevators comprises an elevating structure and a conveying structure, the elevating structure comprises an elevating driving member, an elevating chain in transmission connection with the elevating driving member, and a supporting plate in fixed connection with the elevating chain, the conveying structure comprises a conveying driving assembly and a conveying line in transmission connection with the conveying driving assembly, the conveying driving assembly and the conveying line are arranged on the supporting plate, the projection of the conveying line is arranged on the same straight line as the projections of the upper-layer assembly and the lower-layer assembly, the elevating driving member drives the supporting plate to move through the elevating chain, the supporting plate drives the conveying structure to reciprocate between the upper-layer assembly and the lower-layer assembly, and the conveying line drives the empty fixture to move horizontally, thereby realizing the circulation of the fixture between the upper-layer assembly and the lower-layer assembly.

2. The dual layer circulation line of claim 1, wherein: The supporting plate comprises two plate bodies and a cross beam connected to the two plate bodies, and the conveying line is arranged on the cross beam, and the conveying driving assembly is arranged on the supporting plate.

3. The dual layer circulation line of claim 1, wherein: The double-layer circulation assembly further comprises a frame, the frame comprises a bottom plate, a protective shell, and a baffle, the protective shell and the baffle are fixed to the bottom plate, the elevating structure is arranged on the protective shell, the conveying structure is arranged between the protective shell and the baffle, an opening is formed between the protective shell and the baffle, the conveying line is arranged on one side of the opening, and the upper-layer assembly and the lower-layer assembly are arranged on the other side of the opening.

4. The dual layer circulation line of claim 3, wherein: The protective shell is provided with a clearance groove, the clearance groove is arranged in the vertical direction, and the supporting plate is arranged in the clearance groove and moves along the clearance groove.

5. The dual layer circulation line of claim 3, wherein: The elevating structure further comprises a transmission member in transmission connection with the elevating driving member, the elevating driving member drives the transmission member to rotate, and the elevating chain comprises two elevating chains, each of which is arranged at one end of the transmission member, and the two elevating chains are symmetrically arranged with respect to the elevating driving member and the supporting plate.

6. The dual layer circulation line of claim 5, wherein: The elevating structure further comprises a fixed rod, the transmission member is arranged on the fixed rod, and the transmission member is arranged on the top of the elevating driving member.

7. The dual layer circulation pipeline of claim 1, wherein: The elevating structure further comprises a guide rod, and the supporting plate is slidingly arranged on the guide rod.

8. The dual layer circulation pipeline of claim 1, wherein: The conveying driving assembly comprises a conveying driving member, a conveying chain, and a transmission rod, the conveying driving member is fixed to the supporting plate, the conveying chain is in meshing connection with the conveying driving member and a gear on the transmission rod, and the transmission rod is in cooperation with the two sides of the conveying line.

9. The dual layer circulation pipeline of claim 1, wherein: The upper-layer assembly and the lower-layer assembly are double-speed chains.

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