Material loading and unloading mechanism

Abstract

The present invention discloses a material picking and unloading mechanism, comprising: a main body; a material positioning plate connected to the main body, including first and second sides facing opposite sides, the first side having a plurality of material slots for positioning hardware parts; a plurality of hook mounting blocks fixed to the second side of the material positioning plate, each having a first through-hole for a hook to pass through; the hooks rotatably connected to the hook mounting block, the hooks including first and second opposite ends, the first end penetrating the material positioning plate to pick up the hardware parts; a hook driving plate movably connected to the main body, including a second through-hole corresponding to the first through-hole and for the second end of the hook to pass through; a first driving unit connected to the main body to drive the hook driving plate to move; when the hook driving plate moves, the inner wall of the second through-hole pushes the second end of the hook, causing the hook to rotate relative to the hook mounting block, so that the first end of the hook picks up or releases the hardware parts. This solution can simultaneously pick up and unload multiple hardware parts, improving the efficiency of embedding parts.

Description

Technical Field

[0001] The invention relates to the field of injection molds, in particular to a material taking and placing mechanism. Background Art

[0002] Automobile door lock assemblies typically consist of a molded part and hardware embedded within it. During the manufacturing process, the hardware is pre-embedded in the injection mold. After injection molding, the exterior of the hardware (i.e., the aforementioned hardware portion) forms the molded portion. Traditional hardware pre-embedding processes typically employ a pneumatic gripper to grip the hardware, or a clamping mechanism that opens and closes the jaws through relative motion to retrieve and release the hardware.

[0003] With the development of intelligent automobile door locks, the hardware parts in automobile door lock components are becoming more and more numerous and complex. Therefore, when pre-embedding hardware parts, it is necessary to consider whether it is possible to pick up and put down multiple hardware parts at the same time to improve efficiency, and it is necessary to consider how to stably grasp complex hardware parts. Because the jaws of traditional gripper cylinders or clamping mechanisms require a large space for movement when opening and closing, and the gripper cylinders and clamping mechanisms themselves also require a certain amount of installation space, it is difficult to integrate multiple gripper cylinders or multiple clamping mechanisms on the same mounting plate to pick up and put down multiple hardware parts at the same time. Therefore, gripper cylinders and clamping mechanisms that pick up and put down materials by opening and closing are not very suitable for the above-mentioned situations where there are many hardware parts and the structure is complex. Summary of the Invention

[0004] In order to overcome the defects in the prior art, an embodiment of the present invention provides a material taking and placing mechanism, which is used to solve the above problems.

[0005] The present application discloses a material taking and placing mechanism for pre-embedding hardware into an injection mold, comprising:

[0006] Main body, used for connecting with the manipulator;

[0007] a material positioning plate connected to the main body, the material positioning plate comprising a first side facing the injection mold and a second side opposite to the first side, the first side having a plurality of material slots for positioning hardware;

[0008] A plurality of hook mounting blocks are fixed to the second side of the material positioning plate, the hook mounting block is provided with a first through hole for a hook to pass through, the hook is rotatably connected to the hook mounting block, the hook includes a hook-shaped first end and a second end opposite to the first end, the first end can pass through the material positioning plate to hook the hardware in the trough;

[0009] a hook driving plate, movably connected to the main body and located on a side of the plurality of hook mounting blocks facing away from the material positioning plate, the hook driving plate being provided with a second through hole corresponding to the first through hole, the second through hole being used for the second end of the hook to pass through;

[0010] A first driving unit is connected to the main body to drive the hook driving plate to move toward and away from the hook mounting block. When the hook driving plate moves relative to the hook mounting block, the inner wall of the second through hole can push the second end of the hook, so that the hook can rotate relative to the hook mounting block, so that the first end of the hook can hook or release the hardware.

[0011] Specifically, the axis of the second through hole is not parallel to the thickness direction of the hook driving plate.

[0012] Specifically, the axial cross-section of the second end of the hook is circular.

[0013] Specifically, the material taking and releasing mechanism also includes a second driving unit, a stripping needle push plate and a plurality of stripping needles. The second driving unit is connected to the main body, the stripping needle push plate is connected to the second driving unit, one end of the stripping needle is connected to the stripping needle push plate, and the other end is sequentially passed through the hook driving plate, the hook mounting block and the material positioning plate.

[0014] Specifically, the first driving unit and the second driving unit are both linear cylinders.

[0015] Specifically, the main body includes a first connecting plate, a second connecting plate and a plurality of guide pillars for connecting the first connecting plate and the second connecting plate, the first connecting plate is used to connect to the manipulator, and the first drive unit and the second drive unit are connected to the second connecting plate.

[0016] Specifically, the hook driving plate and the stripping needle pushing plate are both arranged on the side of the first connecting plate facing the second connecting plate, and the first connecting plate is also provided with a limit block for limiting the hook driving plate and the stripping needle pushing plate respectively.

[0017] The present invention has at least the following beneficial effects: the material taking and placing mechanism of this embodiment takes and places hardware by means of hooking and releasing the material by rotating the hook. Since the hook has a simple structure, a small volume and a very small space required for rotation, multiple material troughs and multiple hooks can be set on the same material taking and placing mechanism to take and place multiple hardware at the same time, which can greatly improve the efficiency of pre-embedding hardware. Since multiple evenly distributed hooks can be set for the same hardware, the stability of material grabbing is ensured.

[0018] In order to make the above and other objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 2 is a schematic structural diagram of the material taking and placing mechanism in the embodiment of the present invention at a first viewing angle;

[0021] Figure 2 2 is a schematic structural diagram of the material taking and placing mechanism in the embodiment of the present invention at a second viewing angle;

[0022] Figure 3 2 is a schematic structural diagram of the first side of the material positioning plate in an embodiment of the present invention;

[0023] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle;

[0024] Figure 5 2. It is a structural diagram of the positional relationship among the material positioning plate, the mounting block and the hook driving plate in an embodiment of the present invention;

[0025] Figure 6 2. It is a top view of the connection between the hook driving plate and the mounting block in an embodiment of the present invention;

[0026] Figure 7 yes Figure 6 Cross-sectional view at the middle BB;

[0027] Figure 8 2. It is a structural schematic diagram of an embodiment of the present invention in which a stripping needle is installed on a stripping needle push plate;

[0028] Figure 9 3 is a schematic structural diagram of the material taking and placing mechanism in an embodiment of the present invention from a third viewing angle.

[0029] The figure marks of the above drawings are: 11. First connecting plate; 12. Second connecting plate; 13. Guide column; 14. Connecting rod; 2. Material positioning plate; 3. Hook mounting block; 31. First through hole; 4. Hook driving plate; 41. Second through hole; 5. First driving unit; 6. Second driving unit; 7. Stripping needle push plate; 8. Stripping needle; 9. Hook; 10. Hardware; 20. Limit block. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The material taking and placing mechanism of this embodiment can be used to simultaneously embed multiple hardware components with complex structures in an injection mold.

[0032] Combine Figures 1 to 7 As shown, the material handling mechanism of this embodiment mainly includes: a main body, a material positioning plate 2, multiple hook mounting blocks 3, a hook drive plate 4, and a first drive unit 5. Among them, the main body is used to connect with the robot, and includes a first connecting plate 11, a second connecting plate 12, and multiple guide posts 13 for connecting the first connecting plate 11 and the second connecting plate 12. The first connecting plate 11 is used to connect with the robot. The material positioning plate 2 is connected to the side of the first connecting plate 11 facing away from the second connecting plate 12 by a connecting rod 14. The material positioning plate 2 includes a first side and a second side arranged opposite each other. The first side faces the injection mold and has a material trough for positioning the multiple hardware parts 10. Multiple hook mounting blocks 3 are fixedly connected to the second side of the material positioning plate 2. The hook mounting block 3 is provided with a first through hole 31 for the hook 9 to pass through. The hook 9 is rotatably connected to the hook mounting block 3. The hook 9 includes a hook-shaped first end and a second end opposite the first end. The first end is capable of penetrating the material positioning plate 2 to engage the hardware 10 within the chute. A hook drive plate 4 is mounted on a plurality of guide posts 13 and located on the side of the hook mounting block 3 facing away from the material positioning plate 2. A first drive unit 5 is configured to drive the hook drive plate 4 toward and away from the hook mounting block 3. A second through-hole 41 is defined in the hook drive plate 4, corresponding to the first through-hole 31. The second through-hole 41 is configured to receive the second end of the hook 9. When the hook drive plate 4 moves relative to the hook mounting block 3, the inner wall of the second through-hole 41 pushes against the second end of the hook 9. In other words, the inner wall of the second through-hole 41 exerts a force on the second end of the hook 9, causing the hook 9 to rotate relative to the hook mounting block 3. This allows the first end of the hook 9 to rotate until it engages the hardware 10 within the chute or releases the hardware 10 (i.e., until it no longer restricts the hardware 10).

[0033] Specifically, the diameter of the first through hole 31 on the hook mounting block 3 is larger than the size of the hook 9, so that the hook 9 can rotate smoothly within the first through hole 31. Preferably, the hook 9 can be rotatably connected to the first through hole 31 via a pin. In this way, the hook 9 uses the pin as an axis. When the second end of the hook 9 is subjected to the inner wall of the second through hole 41 on the hook drive plate 4, the hook 9 can rotate around the axis. The opening of the hook at the first end of the hook 9 faces the material trough. When the hook rotates toward the material trough, it can hook the hardware 10. When the hook rotates away from the material trough, it can release the hardware 10. Each hook mounting block 3 can accommodate multiple hooks 9. The multiple hooks 9 can be evenly distributed along the longer dimension of the hardware 10, which helps to improve the stability of the hook 9 in hooking the hardware 10.

[0034] like Figure 7 As shown, the axis of the second through-hole 41 in the hook driving plate 4 is not parallel to the thickness of the hook driving plate 4. In other words, the second through-hole 41 is inclined relative to the thickness of the hook driving plate 4. This allows the inner wall of the hook driving plate 4 to exert a force on the second end of the hook 9 as it moves back and forth along its thickness. Preferably, the axial cross-section of the second end of the hook 9 is circular. In other words, the portion of the second end of the hook 9 that contacts the inner wall of the second through-hole 41 is arc-shaped, which facilitates smoother relative motion between the two.

[0035] like Figure 1 、 Figure 2 and Figure 8 As shown, the material handling mechanism of this embodiment also includes a second drive unit 6, a stripper pin push plate 7, and multiple stripper pins 8. The second drive unit 6 is connected to the second connecting plate 12 of the main body. The stripper pin push plate 7 is connected to the second drive unit 6 and can be driven by the second drive unit 6. One end of each stripper pin 8 is connected to the stripper pin push plate 7, and the other end is sequentially inserted into the claw drive plate 4, the claw mounting block 3, and the material positioning plate 2. The stripper pins 8 assist the material handling mechanism of this embodiment in smoothly releasing the hardware 10 into the injection mold.

[0036] Specifically, if Figure 1 As shown, the first drive unit 5 and the second drive unit 6 of this embodiment can be linear cylinders, and of course, can also be servo motors.

[0037] like Figure 1 and Figure 9As shown, the hook driving plate 4 and the stripping needle push plate 7 of this embodiment are both arranged on the side of the first connecting plate 11 facing the second connecting plate 12. The first connecting plate 11 is also provided with a limit block 20 for limiting the hook driving plate 4 and the stripping needle push plate 7 respectively, to avoid abnormal operation of the first driving unit 5 and the second driving unit 6, which causes the hook driving plate 4 and the stripping needle push plate 7 to move beyond the limit position, thereby causing a collision between the material taking and releasing mechanism of this embodiment and the injection mold.

[0038] The working process of the material taking and discharging mechanism of this embodiment is as follows: the manipulator drives the mechanism to move to the loading position of the hardware 10, the material positioning plate 2 contacts the hardware 10, and the first drive unit 5 drives the hook claw 9 positioning plate to move, and the first end of the hook claw 9 rotates toward the material trough of the material positioning plate 2 to hook the hardware 10; then, the manipulator drives the mechanism to move to the injection mold for pre-embedding, the first drive unit 5 drives the hook claw 9 positioning plate to move, and the first end of the hook claw 9 rotates away from the material trough of the material positioning plate 2 to release the hardware 10, and the second drive unit 6 drives the stripping needle push plate 7 to move, so that the stripping needle 8 pushes the hardware 10 in the material trough into the mold.

[0039] To sum up, the material taking and discharging mechanism of this embodiment takes and discharges the hardware 10 by rotating the hook 9 to hook and release the material. Since the hook 9 has a simple structure, a small size, and a very small space required for rotation, multiple material troughs and multiple hooks 9 can be set on the same material taking and discharging mechanism to take and discharge multiple hardware 10 at the same time, which can greatly improve the efficiency of pre-embedding the hardware 10. Since multiple evenly distributed hooks 9 can be set for the same hardware 10, the stability of material grabbing is ensured.

[0040] Specific embodiments are used in the present invention to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A material taking and discharging mechanism for pre-embedding hardware into an injection mold, characterized in that: include: Main body, used for connecting with the manipulator; a material positioning plate connected to the main body, the material positioning plate comprising a first side facing the injection mold and a second side opposite to the first side, the first side having a plurality of material slots for positioning hardware; A plurality of hook mounting blocks are fixed to the second side of the material positioning plate, the hook mounting block is provided with a first through hole for a hook to pass through, the hook is rotatably connected to the hook mounting block, the hook includes a hook-shaped first end and a second end opposite to the first end, the first end can pass through the material positioning plate to hook the hardware in the trough, and the axial cross-section of the second end of the hook is circular; a hook driving plate, movably connected to the main body and located on a side of the plurality of hook mounting blocks facing away from the material positioning plate, the hook driving plate being provided with a second through hole corresponding to the first through hole, the second through hole being configured to allow the second end of the hook to pass therethrough, the axis of the second through hole being non-parallel to a thickness direction of the hook driving plate; a first driving unit connected to the main body to drive the hook driving plate to move toward and away from the hook mounting block, wherein when the hook driving plate moves relative to the hook mounting block, the inner wall of the second through hole can push the second end of the hook, thereby causing the hook to rotate relative to the hook mounting block, so that the first end of the hook hooks or releases the hardware; The material taking and releasing mechanism also includes a second driving unit, a stripping needle push plate and a plurality of stripping needles. The second driving unit is connected to the main body, the stripping needle push plate is connected to the second driving unit, one end of the stripping needle is connected to the stripping needle push plate, and the other end is sequentially passed through the hook driving plate, the hook mounting block and the material positioning plate.

2. The material taking and placing mechanism according to claim 1, characterized in that: The first driving unit and the second driving unit are both linear cylinders.

3. The material taking and placing mechanism according to claim 1, characterized in that: The main body includes a first connecting plate, a second connecting plate and a plurality of guide pillars for connecting the first connecting plate and the second connecting plate. The first connecting plate is used to connect to the manipulator, and the first driving unit and the second driving unit are connected to the second connecting plate.

4. The material taking and placing mechanism according to claim 3, characterized in that: The hook driving plate and the stripping needle pushing plate are both arranged on the side of the first connecting plate facing the second connecting plate. The first connecting plate is also provided with a limiting block for limiting the hook driving plate and the stripping needle pushing plate respectively.

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