Automatic material returning system of engine box tray

Abstract

The utility model discloses an automatic engine box tray returning system which comprises a tray feeding conveying line and a tray returning conveying line which are arranged side by side in the left-right direction and extend front and back, and a transferring conveying line extending front and back is arranged at the front end of the tray feeding conveying line. The front-back extending length of the transfer conveying line is matched with an engine box tray, the transfer conveying line can move left and right at the front end of the tray feeding conveying line and the front end of the tray returning conveying line under the action of the left-right moving assembly, and the tray feeding conveying line, the tray returning conveying line and the transfer conveying line are all arranged to be roller conveying lines. The front end of the tray feeding conveying line and the front end of the tray returning conveying line are each provided with a material blocking assembly. Automatic material returning of the tray can be achieved, and meanwhile the occupied space is small.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine assembly equipment, and particularly relates to an automatic material return system for an engine block tray. Background Art

[0002] Generally, an engine block is placed in a tray and then transported by the block manufacturer to an engine assembly plant for engine assembly. Therefore, when loading the crankcase of the engine during assembly, there are two methods. One is manual loading. After the worker places the block on the assembly line, the tray is moved to other positions. The other is automatic loading. The tray with the block is moved to a specified position through a tray feeding conveyor line, and then the block is grabbed by a robot onto the assembly line. The tray after the block is taken is moved to other positions through a tray material return conveyor line. To move the tray from the feeding conveyor line to the material return conveyor line, a pushing device capable of pushing the tray towards the material return conveyor line is usually arranged on the side of the feeding conveyor line.

[0003] When using manual loading, due to the large weight of the block, it is easy to cause fatigue of the worker. At the same time, the worker not only needs to move the block but also the tray, resulting in low overall loading efficiency. When using automatic loading, although the loading efficiency can be improved, a separate pushing device needs to be arranged on the side of the feeding conveyor line, which occupies a large space and is not convenient for arranging other devices used for engine assembly. Content of the Utility Model

[0004] The utility model intends to provide an automatic material return system for an engine block tray, which can not only realize the automatic material return of the tray but also occupy a smaller space.

[0005] For this reason, the technical solution adopted by the utility model is as follows: an automatic material return system for an engine block tray, including a tray feeding conveyor line and a tray material return conveyor line arranged side by side left and right and extending forward and backward. The front end of the tray feeding conveyor line is provided with a transfer conveyor line extending forward and backward, and the length of the transfer conveyor line extending forward and backward matches that of the engine block tray. The transfer conveyor line can move left and right at the front ends of the tray feeding conveyor line and the tray material return conveyor line under the action of a left and right moving component. The tray feeding conveyor line, the tray material return conveyor line, and the transfer conveyor line are all arranged as roller conveyor lines. The front ends of the tray feeding conveyor line and the tray material return conveyor line are both provided with a material blocking component.

[0006] As a preference in the above solution, the tray feeding conveyor lines are arranged on both the left and right sides of the tray material return conveyor line, and a transfer conveyor line capable of moving left and right at the front ends of the tray material return conveyor line and the corresponding tray feeding conveyor line is arranged at the front end of each tray feeding conveyor line.

[0007] Further preferably, the left - right moving assembly includes a moving cylinder. There are two left - right extending guide rail seats arranged at intervals in the front - rear direction below the transfer conveyor line. Guide rails are provided on the guide rail seats, and sliders capable of moving left - right on the guide rails are provided on the bottom surface of the transfer conveyor line. One end of the moving cylinder is arranged on a connecting plate extending in the front - rear direction between the two guide rail seats, and the other end is arranged below the transfer conveyor line.

[0008] Further preferably, detection sensors are provided on the guide rail seats for detecting when the transfer conveyor line reaches the front ends of the tray feeding conveyor line and the tray returning conveyor line respectively.

[0009] Further preferably, buffers are provided on the guide rail seats when the transfer conveyor line moves to the left - right in place, and a buffer plate that can be resisted by the buffers is provided on one side of the transfer conveyor line located between the tray feeding conveyor line and the tray returning conveyor line.

[0010] Further preferably, a drag chain groove is provided on the guide rail seat, and a drag chain for protecting the transfer conveyor line to achieve its conveying work is arranged in the drag chain groove. One end of the drag chain is fixed on the drag chain groove, and the other end is arranged at the bottom of the transfer conveyor line.

[0011] Further preferably, the material blocking assembly includes a material blocking cylinder, and the output end of the material blocking cylinder extends upward and is provided with a material blocking block.

[0012] The beneficial effects of the present utility model: By providing a transfer conveyor line capable of moving left - right at the front ends of the tray feeding conveyor line and the tray returning conveyor line, automatic return of the trays is realized. And the transfer conveyor line realizes left - right movement through the left - right moving assembly arranged below it. When the transfer conveyor line is on the front side of the tray feeding conveyor line or the tray returning conveyor line, it can be used as a part of the corresponding conveyor line. Therefore, the overall occupied space is not large, which is convenient for the arrangement of other devices. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the present utility model.

[0014] Reference numerals: Tray feeding conveyor line - 1, Tray returning conveyor line - 2, Transfer conveyor line - 3, Moving cylinder - 4, Guide rail seat - 5, Guide rail - 6, Connecting plate - 7, Detection sensor - 8, Buffer - 9, Buffer plate - 10, Drag chain groove - 11, Drag chain - 12, Material blocking cylinder - 13, Material blocking block - 14. Detailed Embodiments

[0015] The following is a further description of the present utility model through embodiments in conjunction with the drawings:

[0016] Such as Figure 1As shown in the figure, an automatic refeeding system for an engine block tray mainly consists of a tray feeding conveyor line 1, a tray refeeding conveyor line 2, a transfer conveyor line 3, a material blocking component, and a left-right moving component. The tray feeding conveyor line 1 and the tray refeeding conveyor line 2 are arranged side by side left and right and extend forward and backward. The transfer conveyor line 3 is arranged at the front end of the tray feeding conveyor line 1 and extends forward and backward through the left-right moving component. Moreover, the transfer conveyor line 3 can move left and right at the front ends of the tray feeding conveyor line 1 and the tray refeeding conveyor line 2 under the action of the left-right moving component.

[0017] In this application, the tray feeding conveyor line 1, the tray refeeding conveyor line 2, and the transfer conveyor line 3 are all set as roller conveyor lines, and the power sources of the tray feeding conveyor line 1, the tray refeeding conveyor line 2, and the transfer conveyor line 3 are set separately. To prevent the trays on the tray feeding conveyor line from moving to the position of the transfer conveyor line when the transfer conveyor line moves to the front end of the tray refeeding conveyor line, material blocking components are provided at the front ends of both the tray feeding conveyor line 1 and the tray refeeding conveyor line 2.

[0018] In the initial state, the transfer conveyor line is first located at the front end of the tray feeding conveyor line, and the conveying directions of the transfer conveyor line and the tray feeding conveyor line are the same. At the same time, the material blocking component at the front end of the tray feeding conveyor line is in the non-material-blocking state, and the material blocking component at the front end of the tray refeeding conveyor line is in the material-blocking state. During operation, the tray feeding conveyor line is then made to move the tray with the block to the transfer conveyor line. When the tray with the block is entirely on the transfer conveyor line, the transfer conveyor line stops conveying. At the same time, the material blocking component at the front end of the tray feeding conveyor line operates to make it in the material-blocking state. After all the blocks in the tray are grabbed, the left-right moving component operates to move the transfer conveyor line with the empty tray to the front end of the tray refeeding conveyor line. Then, the conveying direction of the transfer conveyor line is made the same as that of the tray refeeding conveyor line. At the same time, the material blocking component operates to return to the non-material-blocking state. When the tray moves from the transfer conveyor line to the tray refeeding conveyor line, the transfer conveyor line stops conveying. Then, the transfer conveyor line returns to the front end of the tray feeding conveyor line under the action of the left-right moving component. At the same time, the material blocking component at the front end of the tray feeding conveyor line is in the non-material-blocking state, and the material blocking component at the front end of the tray refeeding conveyor line is in the material-blocking state. This is continuously repeated to achieve the automatic refeeding of the tray.

[0019] To further improve the block loading efficiency, tray feeding conveyor lines 1 are provided on both the left and right sides of the tray refeeding conveyor line 2. A transfer conveyor line 3 that can move left and right at the front ends of the tray refeeding conveyor line 2 and the corresponding tray feeding conveyor line 1 is provided at the front end of each tray feeding conveyor line 1. This enables the grabbing of the block located on the transfer conveyor line when one transfer conveyor line moves left and right to achieve tray refeeding, rather than stopping the grabbing. And the two transfer conveyor lines alternately move between the front ends of the tray refeeding conveyor line 2 and the corresponding tray feeding conveyor line 1.

[0020] The left-right moving assembly includes a moving cylinder 4, two guide rail seats 5 extending left-right are arranged at intervals below the transfer conveyor line 3, guide rails 6 are arranged on the guide rail seats 5, and a slider that can move left-right on the guide rails 6 is arranged on the bottom surface of the transfer conveyor line 3. One end of the moving cylinder 4 is arranged on a connecting plate 7 extending front-back between the two guide rail seats 5, and the other end is arranged below the transfer conveyor line 3. When the moving cylinder is working, it can drive the transfer conveyor line to move left-right along the guide rail. When two pallet feeding conveyor lines and a transfer conveyor line are set, the guide rail seats and guide rails of the two transfer conveyor lines are shared.

[0021] Since the roller conveyor line is provided with connecting plates on both sides, in order to facilitate the determination of the position of the transfer conveyor line, a detection sensor 8 for detecting the transfer conveyor line at the front end of the pallet feeding conveyor line and the pallet return conveyor line is provided on the guide rail seat 5, that is, the detection sensor is provided on the guide rail seat at the front end of the pallet feeding conveyor line and the pallet return conveyor line, and two detection sensors for detecting the connecting plates on both sides of the roller conveyor line are provided at intervals on the left and right at the front end of the pallet feeding conveyor line and the pallet return conveyor line.

[0022] To ensure that the transfer conveyor line can stably stop at the front end of the pallet feeding conveyor line or the pallet return conveyor line, a buffer 9 is provided on the guide rail seat 5 when the transfer conveyor line 3 moves left and right into position. Since two transfer conveyor lines are provided, in order to prevent the buffer of one of the transfer conveyor lines from interfering with the movement of the other, the buffer used for the front end limit buffer of the pallet return conveyor line is lower than the bottom surface of the transfer conveyor line. At this time, in order to achieve buffering, a buffer plate 10 that can be supported by the buffer 9 is provided on one side of the transfer conveyor line 3 between the pallet feeding conveyor line 1 and the pallet return conveyor line 2.

[0023] In order to protect the wires or air pipes on the transfer conveyor line, a drag chain groove 11 is provided on the guide rail seat 5, and a drag chain 12 for protecting the transfer conveyor line 3 is arranged in the drag chain groove 11. One end of the drag chain 12 is fixed on the drag chain groove 11, and the other end is arranged at the bottom of the transfer conveyor line 3.

[0024] The specific structure of the material blocking assembly includes a material blocking cylinder 13, and the output end of the material blocking cylinder 13 extends upward and is provided with a material blocking block 14. When material blocking is required, the material blocking cylinder works to push the material blocking block to move upward.​

Claims

1. An automatic return system for an engine case pallet, comprising a pallet feeding conveyor line (1) and a pallet return conveyor line (2) arranged side by side and extending forward and backward, characterized in that: A transfer conveyor line (3) extending forward and backward is arranged at the front end of the pallet feeding conveyor line (1), and the length of the transfer conveyor line (3) extending forward and backward matches the engine case pallet. The transfer conveyor line (3) can move left and right at the front end of the pallet feeding conveyor line (1) and the pallet return conveyor line (2) under the action of a left and right moving component. The pallet feeding conveyor line (1), the pallet return conveyor line (2) and the transfer conveyor line (3) are all configured as roller conveyor lines. The front ends of the pallet feeding conveyor line (1) and the pallet return conveyor line (2) are both provided with a material blocking component.

2. The engine case tray automatic return system according to claim 1, characterized in that: The pallet return conveyor line (2) is provided with a pallet feeding conveyor line (1) on both sides thereof, and the front end of each pallet feeding conveyor line (1) is provided with a transfer conveyor line (3) which can move left and right at the front end of the pallet return conveyor line (2) and the corresponding pallet feeding conveyor line (1).

3. The engine case tray automatic return system according to claim 1, characterized in that: The left-right moving assembly comprises a moving cylinder (4), two guide rail seats (5) extending left-right are arranged at intervals at the front and rear below the transfer conveyor line (3), a guide rail (6) is arranged on the guide rail seat (5), a slider capable of moving left-right on the guide rail (6) is arranged on the bottom surface of the transfer conveyor line (3), one end of the moving cylinder (4) is arranged on a connecting plate (7) extending forward and backward between the two guide rail seats (5), and the other end is arranged below the transfer conveyor line (3).

4. The engine case tray automatic return system according to claim 3, characterized in that: The guide rail seat (5) is provided with a detection sensor (8) for detecting the front ends of the transfer conveyor line, the pallet feeding conveyor line and the pallet returning conveyor line.

5. The engine case tray automatic return system according to claim 3, characterized in that: The guide rail seat (5) is provided with a buffer (9) when the transfer conveyor line (3) moves left and right into position, and a buffer plate (10) capable of being supported by the buffer (9) is provided on one side of the transfer conveyor line (3) located between the pallet feeding conveyor line (1) and the pallet returning conveyor line (2).

6. The engine case tray automatic return system according to claim 3, characterized in that: The guide rail seat (5) is provided with a drag chain groove (11), and a drag chain (12) is arranged in the drag chain groove (11) for protecting and realizing the conveying work of the transfer conveyor line (3). One end of the drag chain (12) is fixed on the drag chain groove (11), and the other end is arranged at the bottom of the transfer conveyor line (3).

7. The engine case tray automatic return system according to claim 1, characterized in that: The material blocking assembly comprises a material blocking cylinder (13), the output end of which extends upward and is provided with a material blocking block (14).

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