Fool-proof device for preventing material frame from falling off and transfer appliance

Abstract

The utility model discloses a fool-proof device for preventing a material frame from falling, which comprises a fixed seat, a stress rod and a blocking piece which are movably arranged on the fixed seat, a stress spring connected with the fixed seat and the stress rod, and a tension spring connected with the fixed seat and the blocking piece, the moving direction of the stress rod is perpendicular to the moving direction of the blocking piece. The blocking piece is arranged to be switched between the blocking state and the avoiding state, and the blocking piece in the blocking state is used for limiting the material frame. The fool-proof device for preventing the material frame from falling off is simple in structure, is arranged on an IGBT module transfer appliance, can compensate for forgetting of operation of production personnel, effectively prevents the material frame from falling off and collapsing in the pushing and transporting process of the transfer appliance, cancels manual operation of a stop block, reduces manual operation, and avoids IGBT module product scrapping caused by collapsing of the material frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of IGBT module production equipment, and in particular relates to an anti-mistake device and a transfer device for preventing a material frame from falling. Background Art

[0002] During the production process of IGBT (Insulated Gate Bipolar Transistor) modules, semi-finished products are transported between production equipment using carts for loading and unloading. During transportation, the material frame containing the palletized products may fall off the cart or collapse, causing the semi-finished products to be damaged and scrapped.

[0003] like Figure 3 and Figure 4 As shown, to prevent the material frame from falling or collapsing, a manual block is installed on the cart. Before the cart is moved, production personnel need to manually break off the manual block to prevent the material frame from falling out of the cart and collapsing. Therefore, before moving the cart, production personnel must remember to break off the manual block every time they move the cart to block the material frame, otherwise the material frame will fall or collapse. However, during actual production and transportation, production personnel may forget to break off the manual block or fail to break it off completely, and the material frame will fall and collapse due to inertia. This method requires production personnel to manually prevent the material frame from falling. This is unreliable and has a high frequency of abnormalities, resulting in a high product scrap rate and posing a hidden danger to production.

[0004] In summary, the prior art has the following shortcomings:

[0005] 1. Before pushing the trolley, the block bar must be manually broken off. However, the production staff cannot guarantee that it is broken off 100% every time, which poses a risk.

[0006] 2. Every time the production staff bends the block bar, they need to bend it to 90 degrees with the block fixing seat, otherwise it cannot completely guarantee that the material frame is blocked.

[0007] Chinese patent application number 202222001946.2 discloses a fool-proof device for automatic feeding of PCB boards, including a first conveyor belt, an fool-proof mechanism arranged on the first conveyor belt, a lifting mechanism arranged at one end of the first conveyor belt, and a second conveyor belt arranged below the first conveyor belt. The transmission directions of the first conveyor belt and the second conveyor belt are opposite. The fool-proof mechanism includes a lifting assembly arranged in the middle of the first conveyor belt, a first sensor arranged on the lifting assembly, a second sensor arranged on one side of the first conveyor belt and above the lifting assembly, and an alarm electrically connected to the second sensor.

[0008] It is hoped to provide an improved fool-proof device for preventing a material frame from falling, particularly with regard to how to prevent a material frame from falling from a transporting device during transport of an IGBT module. Utility Model Content

[0009] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a foolproof device for preventing a material frame from falling, the purpose of which is to prevent the material frame from falling from a transport device during the transport of IGBT modules.

[0010] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an anti-mistake device to prevent the material frame from falling, including a fixed seat, a force rod and a blocking member movably arranged on the fixed seat, a force spring connected to the fixed seat and the force rod, and a tension spring connected to the fixed seat and the blocking member. The force rod is configured to push the blocking member to move in a straight line, and the moving direction of the force rod is perpendicular to the moving direction of the blocking member; the blocking member is configured to switch between a blocking state and an avoidance state, and the blocking member in the blocking state is used to limit the material frame.

[0011] The blocking member includes a barrier rod and a rotating bearing arranged on the barrier rod, and a driving surface in contact with the rotating bearing is arranged on the force-bearing rod.

[0012] The driving surface is a plane that is inclined relative to the moving direction of the force-bearing rod.

[0013] The fixing seat comprises a base and a guide block arranged on the base, and the guide block is provided with a guide hole for the force-bearing rod to pass through.

[0014] The fixing seat further comprises a guide rail arranged on the base, the guardrail is arranged on the guide rail, and the tension spring is connected to the base and the guardrail.

[0015] The utility model also provides a transporting device, including a vehicle body and the fool-proofing device for preventing the material frame from falling off. The fool-proofing device for preventing the material frame from falling off is arranged on the vehicle body, and at least two fool-proofing devices for preventing the material frame from falling off are arranged.

[0016] The utility model discloses an anti-mistake device for preventing the material frame from falling, has a simple structure, is arranged on the IGBT module transporting device, can compensate for the forgetfulness of production personnel in operation, effectively prevents the material frame from falling and collapsing during the pushing process of the transporting device, eliminates the manual operation of the block, reduces manual operation, and avoids the scrapping of IGBT module products due to the collapse of the material frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This manual includes the following drawings, which show the following contents:

[0018] Figure 1This is a schematic structural diagram of the anti-fool device for preventing the material frame from falling in the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the transfer device;

[0020] Figure 3 This is a schematic diagram of the use status of the existing material frame trolley;

[0021] Figure 4 is a schematic diagram of an existing manual stop;

[0022] The markings in the figure are: 1. Force rod; 2. Guide block; 3. Force spring; 4. Rotating bearing; 5. Guard bar; 6. Guide rail; 7. Tension spring; 8. Material frame; 9. Manual stopper; 10. Roller assembly; 11. Pallet product; 12. Stopper bar; 13. Rotating shaft; 14. Stopper fixing seat; 15. Anti-fool device. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and to facilitate its implementation.

[0024] like Figure 1 and Figure 2 As shown, the utility model provides an anti-mistake device for preventing a material frame from falling, comprising a fixed seat, a force rod 1 and a blocking member movably arranged on the fixed seat, a force spring 3 connected to the fixed seat and the force rod 1, and a tension spring 7 connected to the fixed seat and the blocking member. The force rod 1 is configured to push the blocking member to move in a straight line, the moving direction of the force rod 1 is perpendicular to the moving direction of the blocking member, and the moving directions of the force rod 1 and the blocking member are both horizontal; the blocking member is configured to switch between a blocking state and an avoidance state, and the blocking member in the blocking state is used to limit the material frame.

[0025] Specifically, if Figure 1 and Figure 2As shown, the blocking member includes a guard bar 5 and a rotating bearing 4 provided on the guard bar 5, and a driving surface provided on the stressed rod 1 that contacts the rotating bearing 4. The driving surface is a plane that is inclined relative to the moving direction of the stressed rod 1. The driving surface is a vertical surface. The driving surface is located at one end of the length direction of the stressed rod 1. There is an angle between the length direction of the driving surface and the moving direction of the stressed rod 1, and the angle is acute. The driving surface contacts the outer circumferential surface of the rotating bearing 4. When the stressed rod 1 moves, the stressed rod 1 pushes the blocking member to move linearly in the horizontal direction through the driving surface, thereby switching between the avoidance state and the blocking state. When the IGBT module is transported, it is loaded by a material frame, which is placed on a transport device. The transport device is provided with an inlet and outlet for the material frame to pass through. The anti-fool device is located at the inlet and outlet position. The guard bar 5 of the blocking member in the blocking state is inserted into the inlet and outlet. The guard bar 5 is placed horizontally on the path of the material frame moving toward the outside of the transport device, which can limit the material frame. The barrier 5 of the blocking member in the avoidance state is moved out from the inlet and outlet, and the barrier 5 will not be placed horizontally on the path of the material frame moving toward the outside of the transfer device, thereby not blocking the movement of the material frame.

[0026] like Figure 1 As shown, the fixed base includes a base and a guide block 2 mounted on the base. The guide block 2 is provided with a guide hole for the force-bearing rod 1 to pass through. The guide block 2 is fixed to the base and guides the force-bearing rod 1. The force-bearing rod 1 passes through the guide block 2, with both ends of the force-bearing rod 1 located outside the guide block 2. One end of the force-bearing rod 1 is used for operator manipulation and receives external thrust, while the other end of the force-bearing rod 1 is provided with a driving surface.

[0027] like Figure 1 As shown, the fixed base also includes a guide rail 6 fixed to the base, a guardrail 5 is disposed on the guide rail 6, and a tension spring 7 is connected to the base and the guardrail 5. The guardrail 5 is slidably connected to the guide rail 6, which guides the guardrail 5. One end of the tension spring 7 is connected to the base, and the other end of the tension spring 7 is connected to the guardrail 5. The tension spring 7 applies an elastic force to the guardrail 5 to move it toward the inlet and outlet, thereby resetting the guardrail 5. One end of the force spring 3 is connected to the force-bearing rod 1, and the other end of the force spring 3 is connected to the guide block 2. The force spring 3 applies an elastic force to the force-bearing rod 1 to move it toward a position away from the rotating bearing 4, thereby resetting the force-bearing rod 1.

[0028] Preferably, the force-bearing rod 1, the guide block 2, the force-bearing spring 3, the guardrail 5, the guide rail 6 and the tension spring 7 are all made of stainless steel.

[0029] The fool-proof device for preventing the material frame from falling of the above structure has the following advantages:

[0030] 1. Good firmness, the anti-fool device is fixed on the trolley and will not deform or loosen;

[0031] 2. High effectiveness. The anti-foolproof device stops the material frame in real time and actively stops the material frame. It releases the material frame according to the force requirements to allow it to be loaded onto the machine.

[0032] 3. Strong safety, all parts of the anti-foolproof device are made of stainless steel, will not rust, and will not involve other issues;

[0033] 4. Strong compatibility. The consumable parts on the anti-foolproofing device are all market standard parts, easy to maintain and highly popularizable. Our company only used it in one process in the early stage and later promoted it to the whole workshop.

[0034] The present invention also provides a transport device comprising a vehicle body and a foolproof device for preventing a material frame from falling, the device being mounted on the vehicle body, and at least two foolproof devices for preventing a material frame from falling are provided. The base of the foolproof device is fixedly connected to the vehicle body, the direction of movement of a force-bearing rod 1 is parallel to the direction of movement of the vehicle body, and the force-bearing rod 1 extends forward in the direction of travel of the vehicle body, a roller assembly for supporting the material frame is provided on the vehicle body, and a tray is mounted on the material frame, the tray being used to place the IGBT module.

[0035] like Figure 2 As shown, in this embodiment, two anti-fool devices for preventing the material frame from falling are set, the two anti-fool devices for preventing the material frame from falling are at the same height and the two anti-fool devices for preventing the material frame from falling are on the same straight line perpendicular to the moving direction of the material rack when it moves on the vehicle body.

[0036] like Figure 1 and Figure 2 As shown, after the anti-foolproof device is fixed on the transfer device, the transfer device is not subjected to any external force during the pushing process, the force rod 1 is in a force-free state, the force spring 3 and the tension spring 7 are both in a contracted state, pulling the barrier 5, keeping the barrier 5⑤ in a blocking state, the barrier 5 is always protruding, always blocking the material frame, so that the material frame cannot fall and the transfer device cannot collapse.

[0037] like Figure 2 As shown, two anti-fool devices are installed on the transport device, that is, they are installed on the left and right sides of the material frame. The distance between the guardrails 5 of the two anti-fool devices in the blocking state is smaller than the width of the material frame. No matter how the material frame shakes in the transport device, it will not fall down.

[0038] When the transport device is put on the machine, the force-bearing rod 1 is subjected to the squeezing force between the transport device and the equipment. When the squeezing force is greater than the elastic force of the force spring 3, the force spring 3 is deformed and opened, and the force-bearing rod 1 moves backward on the guide block 2. The driving surface at the other end of the force-bearing rod 1 is in close contact with the rotating bearing 4. The further the force-bearing rod 1 moves backward, the wider the driving surface becomes, and the force acts on the rotating bearing 4. The rotating bearing 4 is fixed on the guardrail 5, driving the guardrail 5 to move backward on the guide rail 6. The tension spring 7 is deformed and opened as it is subjected to the force, and the guardrail 5 will be recessed. The blocking member switches from the blocking state to the avoidance state. The guardrail 5 cannot block the material frame, and the material frame can be pushed into the equipment on the roller assembly of the transport device.

[0039] After the equipment processing is completed, the material frame is pulled back from the equipment to the transfer device. When the transfer device is separated from the equipment, the force-bearing rod 1 no longer receives the extrusion force between the transfer device and the equipment. The force-bearing spring 3 changes from open to contracted, pulling the force-bearing rod 1 forward to restore the blocking state. The driving surface of the other end of the force-bearing rod 1 contacts the rotating bearing 4 from wide to narrow, and the tension spring 7 will no longer be stressed, and change from open to contracted, pulling the barrier rod 5 forward. The blocking member switches from the avoidance state to the blocking state, blocking the material frame again to prevent it from falling from the transfer device.

[0040] To sum up, the anti-mistake device ensures that the material frame does not fall off the transfer device during the transportation of the transfer device, ensures that the product does not fall, be damaged and scrapped, and ensures that the material frame is not blocked from moving forward or backward when the transfer device is put onto the machine.

[0041] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. Anti-mistake device to prevent the material frame from falling, characterized by: It includes a fixed seat, a force-bearing rod and a blocking member movably arranged on the fixed seat, a force-bearing spring connected to the fixed seat and the force-bearing rod, and a tension spring connected to the fixed seat and the blocking member. The force-bearing rod is configured to push the blocking member to move in a straight line, and the moving direction of the force-bearing rod is perpendicular to the moving direction of the blocking member; the blocking member is configured to switch between a blocking state and an avoidance state, and the blocking member in the blocking state is used to limit the material frame.

2. The foolproof device for preventing the material frame from falling according to claim 1, characterized in that: The blocking member comprises a barrier rod and a rotation bearing arranged on the barrier rod, and the force-bearing rod is provided with a driving surface in contact with the rotation bearing.

3. The foolproof device for preventing the material frame from falling according to claim 2, characterized in that: The driving surface is a plane that is inclined relative to the moving direction of the force-bearing rod.

4. The foolproof device for preventing the material frame from falling according to claim 2, characterized in that: The fixing seat comprises a base and a guide block arranged on the base, and the guide block is provided with a guide hole for the force-bearing rod to pass through.

5. The foolproof device for preventing the material frame from falling according to claim 4, characterized in that: The fixing seat further comprises a guide rail arranged on the base, the guardrail is arranged on the guide rail, and the tension spring is connected to the base and the guardrail.

6. A transport vehicle, including a vehicle body, characterized in that: It also includes the anti-foolproofing device for preventing the material frame from falling as described in any one of claims 1 to 5, the anti-foolproofing device for preventing the material frame from falling is arranged on the vehicle body, and at least two anti-foolproofing devices for preventing the material frame from falling are arranged.

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