A camshaft insert injection molding unloading device

Abstract

The present application relates to injection molding machine technical field discloses a camshaft insert injection molding unloading device, including movable die, push plate and receiving mechanism, receiving mechanism includes mounting bracket, receiving assembly, reset assembly, drive assembly and receiving assembly, mounting bracket is set below movable die, receiving assembly, reset assembly and drive assembly are all set on mounting bracket, receiving assembly is set on one end of mounting bracket, receiving assembly is in receiving state when receiving, receiving assembly is in original state after receiving is completed, reset assembly is used for driving receiving assembly to convert from receiving state to original state, drive assembly is used for driving receiving assembly to convert from original state to receiving state, receiving assembly converts from receiving state to original state, receiving assembly on camshaft is received and transferred by receiving assembly. The present application is used for solving the problem that camshaft falls into the collecting box below during unloading in the prior art, which is easy to be damaged.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine technology, and in particular to a camshaft insert injection unloading device. Background Technology

[0002] The camshaft is a component of a piston engine, its function being to control the opening and closing of the valves. The camshaft consists of a shaft body and a drive gear. Traditional camshafts are typically made of high-quality alloy steel or alloy steel, possessing high strength and support capacity. Currently, some camshafts use a shaft body made of high-quality alloy steel or alloy steel, while the drive gear is injection molded onto the shaft body. This reduces overall weight and cost, and results in lower noise levels, making it suitable for high-noise equipment such as lawnmowers, effectively reducing operating noise.

[0003] Currently, injection molding mostly uses injection molding machines to shape thermoplastic or thermosetting plastics into various shapes of plastic products using plastic molds. For example, a conventional horizontal injection molding machine mainly consists of a moving mold, a fixed mold, and a push plate. During operation, the shaft is first placed into the fixed mold, then the moving and fixed molds are closed, and the shaft is fixed in place. The injection screw melts the raw material in the barrel and conveys it to the injection cavity of the drive gear plate formed by the moving and fixed molds. The molten material solidifies into the drive gear plate after pressure holding and cooling.

[0004] When the mold opens, the moving mold moves away from the fixed mold. When unloading, the push plate is controlled to move, which drives the push rod fixedly connected to the push plate to move and push the camshaft out of the moving mold and fall into the collection box below. However, the camshaft is prone to damage. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a camshaft insert injection molding unloading device to solve the problem in the prior art that the camshaft falls into the collection box below during unloading, which is prone to damage.

[0006] The present invention solves the above-mentioned technical problems through the following technical means:

[0007] A camshaft insert injection molding unloading device includes a moving mold, a push plate, and a receiving mechanism. The receiving mechanism includes a mounting frame, a receiving component, a reset component, a drive component, and a receiving component. The mounting frame is disposed below the moving mold. The receiving component, reset component, and drive component are all disposed on the mounting frame. The receiving component is disposed at one end of the mounting frame. The receiving component is in a receiving state when receiving material and in its original state after receiving material. The reset component is used to drive the receiving component to switch from the receiving state to the original state. The drive component is used to drive the receiving component to switch from the original state to the receiving state. When the receiving component switches from the receiving state to the original state, the receiving component receives and transfers the camshaft on the receiving component.

[0008] Furthermore, the drive assembly is provided with a locking assembly, the bottom of the moving mold is provided with a locking member, and the bottom of the push plate is provided with an unlocking member. When the moving mold moves away from the fixed mold, the locking member can lock with the locking assembly. The moving mold drives the drive assembly to move, and the drive assembly drives the receiving assembly to switch from the original state to the receiving state. When the push plate moves towards the camshaft side to eject the camshaft, the unlocking member can release the locking member from the locking assembly. The reset assembly drives the receiving assembly to switch from the receiving state to the original state.

[0009] Furthermore, the reset assembly includes a connecting plate and a torsion spring. One end of the connecting plate is rotatably mounted on the mounting frame via the torsion spring, and the other end is rotatably connected to the receiving assembly. The drive assembly includes a drive block and an elastic transmission component. The drive block is slidably mounted on the mounting frame, and the locking assembly is disposed on the drive block. One end of the elastic transmission component is connected to the drive block, and the other end is connected to the connecting plate.

[0010] Furthermore, the mounting bracket is provided with sliding rods on both sides, and the drive block has through holes at both ends, and the drive block is slidably sleeved on the sliding rods.

[0011] Furthermore, the slide bar is provided with a shock absorber, one end of which is fixedly connected to the mounting bracket and the other end is fixedly connected to the drive block.

[0012] Furthermore, the top of the drive block is provided with a mounting groove, the locking assembly includes a locking tongue and a spring, the locking tongue is slidably disposed in the mounting groove, one end of the spring is fixedly connected to the mounting groove, and the other end is fixedly connected to the locking tongue, and a guide slope is provided at the end of the locking tongue near the unlocking component.

[0013] Furthermore, the receiving assembly includes a receiving plate and a mounting plate. The mounting plate is fixedly connected to the bottom of the receiving plate. A receiving groove is provided on the top of the receiving plate for receiving the shaft of the camshaft. A connecting groove is provided on the mounting plate, and a rod is provided in the connecting groove. The end of the connecting plate is hinged to the rod.

[0014] Furthermore, the receiving component includes two identical first guide rails, which are inclined and have a channel between them. When the receiving component passes through the channel, the two first guide rails can receive the transmission gear of the camshaft, causing the camshaft to disengage from the receiving groove and slide down along the inclined direction of the first guide rails.

[0015] Furthermore, the receiving groove is inclined, and the inclination direction of the receiving groove is consistent with the inclination direction of the first guide rail.

[0016] Furthermore, a second guide rail is provided on both sides of the mounting bracket, and a guide block is rotatably mounted on both sides of the bottom of the mounting plate, the guide block being slidably sleeved on the second guide rail.

[0017] The beneficial effects of this invention are:

[0018] 1. By setting up a receiving component, a reset component, a drive component, and a receiving component, when the mold opens, the drive component drives the receiving component to switch from the original state to the receiving state, catching the camshaft that falls from the moving mold. Subsequently, the reset component drives the receiving component to switch the camshaft from the receiving state back to the original state. During this process, the receiving component receives and transfers the camshaft on the receiving component, reducing the impact on the camshaft during unloading and mitigating the damage to the camshaft during unloading.

[0019] 2. By setting up a locking assembly, locking parts, and unlocking parts, when the moving mold moves away from the fixed mold, it locks with the locking assembly through the locking parts, thereby driving the drive assembly to move through the moving mold. The drive assembly then drives the receiving assembly to switch from the original state to the receiving state. When the push plate moves towards the camshaft side to eject the camshaft, the unlocking parts release the locking parts from the locking assembly, and the reset assembly drives the receiving assembly to switch from the receiving state to the original state. No additional drive parts and corresponding control programs are required, effectively reducing costs.

[0020] 3. By setting up a connecting plate, torsion spring, drive block and elastic transmission component, the receiving component is rotated toward or away from the moving mold with the connection end between the connecting plate and the mounting frame as the rotation axis, so as to avoid the receiving component from colliding with the moving mold when it changes from the original state to the receiving state.

[0021] 4. By setting a second guide rail, the receiving plate and the mounting plate remain vertical as they rotate around the connection end between the connecting plate and the mounting frame, so as to stably receive and transfer the camshaft. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a camshaft insert injection molding unloading device according to the present invention;

[0023] Figure 2 This is a structural diagram of the camshaft insert injection molding unloading device of the present invention, which is coupled with the injection screw;

[0024] Figure 3 This is a schematic diagram of the material receiving state of a camshaft insert injection molding unloading device according to the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of a camshaft insert injection molding unloading device in the material receiving state according to the present invention;

[0026] Figure 5This is an enlarged structural schematic diagram of the original state of the camshaft insert injection molding unloading device of the present invention;

[0027] in,

[0028] 11. Moving mold; 111. Locking component; 12. Push plate; 121. Unlocking component; 13. Camshaft; 131. Transmission gear; 132. Shaft body; 14. Fixed mold;

[0029] 2. Mounting bracket; 21. Main body; 211. Groove; 22. Support leg; 23. Plate; 24. Column; 25. Slide rod; 251. Shock absorber; 26. Second guide rail;

[0030] 31. First guide rail;

[0031] 41. Receiving plate; 411. Receiving groove; 42. Mounting plate; 421. Connecting groove; 423. Guide block;

[0032] 51. Connecting plate;

[0033] 61. Drive block; 611. Mounting slot; 62. Elastic transmission component;

[0034] 71. Locking tongue; 711. Guide ramp; 72. Spring. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present invention. In order to better illustrate the embodiments of the present invention, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product size; it is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the figures.

[0036] In the figures of this invention, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this invention 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, the terms used to describe positional relationships in the figures are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0037] like Figures 1-5As shown, a camshaft insert injection molding unloading device of the present invention includes a moving mold 11, a push plate 12, and a receiving mechanism. The receiving mechanism includes a mounting frame 2, a receiving assembly, a reset assembly, a drive assembly, and a receiving assembly. The receiving assembly, the reset assembly, and the drive assembly are all disposed on the mounting frame 2, and the receiving assembly is disposed at one end of the mounting frame 2.

[0038] The receiving assembly includes two identical first guide rails 31, which are inclined and have a channel between them. When the receiving assembly receives the camshaft 13 and passes through the channel, the two first guide rails 31 can support the transmission gear 131 of the camshaft 13, causing the camshaft 13 to disengage from the receiving groove 411 and slide down along the inclined direction of the first guide rails 31. In this embodiment, a conveying track can be provided at the end of the first guide rails 31 to prevent the camshaft 13 from accumulating.

[0039] Mounting bracket 2 is located below moving mold 11 and is used to mount receiving assembly, reset assembly, and drive assembly. Specifically, mounting bracket 2 includes a main body 21 and support legs 22. Support legs 22 are fixedly mounted on the bottom of the main body 21. A plate 23 is fixedly mounted on one side of the top of the main body 21, and a column 24 is fixedly mounted on the other side. In this embodiment, two columns 24 are provided. Slide rods 25 are provided on both sides of mounting bracket 2. One end of the slide rod 25 is fixedly connected to the column 24, and the other end is fixedly connected to the plate 23.

[0040] The receiving assembly includes a receiving plate 41 and a mounting plate 42. The mounting plate 42 is fixedly connected to the bottom of the receiving plate 41. When receiving material, the receiving plate 41 is in the receiving state, that is, the receiving plate 41 is located on one side of the moving mold 11, waiting to receive the camshaft 13. After receiving material, the receiving plate 41 is in its original state, that is, the receiving plate 41 is stopped on one side of the mounting bracket 2. A receiving groove 411 is opened on the top of the receiving plate 41. The receiving groove 411 is inclined, and the inclination direction of the receiving groove 411 is consistent with the inclination direction of the first guide rail 31. When the receiving plate 41 receives the camshaft 13, the shaft body 132 part is heavier and fits in the receiving groove 411, while the transmission gear 131 part is lighter and hangs outside the receiving groove 411. The inclined receiving groove 411 can stably receive the camshaft 13.

[0041] The reset assembly is used to drive the receiving assembly to transition from the receiving state to the original state. Specifically, the reset assembly includes a connecting plate 51 and a torsion spring. A slot 211 is formed on the main body 21. One end of the connecting plate 51 is rotatably mounted in the slot 211 via the torsion spring, and the other end is rotatably connected to the receiving assembly. In this embodiment, a connecting groove 421 is formed on the mounting plate 42, and a rod is disposed within the connecting groove 421. The end of the connecting plate 51 is hinged to the rod, achieving a rotatable connection between the connecting plate 51 and the receiving assembly. When the connecting plate 51 rotates, it can drive the mounting plate 42 and the receiving plate 41 to rotate.

[0042] In this embodiment, a second guide rail 26 is provided on both sides of the mounting bracket 2, and a guide block 423 is rotatably mounted on both sides of the bottom of the mounting plate 42. The guide block 423 is slidably sleeved on the second guide rail 26. By setting the second guide rail 26, the receiving component is kept vertical during the rotation of the receiving component about the connection end between the connecting plate 51 and the mounting bracket 2, so as to stably receive and transfer the camshaft 13.

[0043] It should be noted that in some other embodiments, if the second guide rail 26 is not provided, the receiving assembly is divided by the rod body. After the receiving assembly receives the camshaft 13, the weight below the rod body is much greater than the weight above the rod body, so that the center of gravity of the receiving assembly is located at the bottom of the receiving assembly. This avoids the receiving assembly from tilting too much during the rotation of the receiving assembly with the connection end of the connecting plate 51 and the mounting bracket 2 as the rotation axis.

[0044] The drive assembly is slidably mounted on the mounting frame 2 to drive the receiving assembly from its original state to its receiving state. Specifically, the drive assembly includes a drive block 61 and an elastic transmission member 62. The drive block 61 has through holes at both ends, and it is slidably fitted onto the slide rod 25 through these holes, thus enabling the drive assembly to be slidably mounted on the mounting frame 2. One end of the elastic transmission member 62 is connected to the drive block 61, and the other end is connected to the connecting plate 51. In this embodiment, the connection ends of the elastic transmission member 62 and the drive block 61, as well as the connection ends of the elastic transmission member 62 and the connecting plate 51, are both configured as rotatable connections to accommodate positional changes between the drive block 61 and the connecting plate 51. The elastic transmission member 62 is a tension spring, which is simple in structure, durable, and easy to replace. In practice, it can also be configured as a linkage mechanism or an elastic rope, etc., as needed. When the drive block 61 moves away from the receiving component, it pulls the connecting plate 51 to rotate against the torque of the torsion spring via a tension spring. The rotation axis is the connection end between the connecting plate 51 and the mounting bracket 2. When the connecting plate 51 rotates, it drives the mounting plate 42 and the receiving plate 41 to rotate until the receiving plate 41 changes from its original state to the receiving state, ready to receive the camshaft 13. After the receiving plate 41 receives the camshaft 13, when the drive block 61 moves closer to the receiving component, the torque of the torsion spring causes the connecting plate 51 to rotate back to its original state. The connecting plate 51 drives the mounting plate 42 and the receiving plate 41 to rotate back to their original state until the receiving plate 41 changes from the receiving state to its original state, thus realizing the transfer of the camshaft 13.

[0045] In this embodiment, a locking component is provided on the drive assembly, a locking member 111 is fixedly installed on the bottom of the moving mold 11, and an unlocking member 121 is fixedly installed on the bottom of the push plate 12. When the moving mold 11 moves away from the fixed mold 14, the locking member 111 can lock with the locking assembly. The moving mold 11 drives the drive assembly to move, and the drive assembly drives the receiving assembly to change from the original state to the receiving state. When the push plate 12 moves towards the camshaft 13 and pushes out the camshaft 13, the unlocking member 121 can release the locking member 111 from the locking assembly. The reset assembly drives the receiving assembly to change from the receiving state to the original state.

[0046] Specifically, the top of the drive block 61 has a mounting groove 611. The locking assembly includes a latch 71 and a spring 72, which is a compression spring. The latch 71 is slidably disposed within the mounting groove 611. Both ends of the mounting groove 611 have sliding grooves, and both ends of the latch 71 have sliders that slide within the sliding grooves, thus allowing the latch 71 to slide within the mounting groove 611. One end of the spring 72 is fixedly connected to the mounting groove 611, and the other end is fixedly connected to the latch 71. A guide ramp 711 is provided at the end of the latch 71 near the unlocking member 121. When the moving mold 11 moves away from the fixed mold 14, it abuts against the locking tongue 71 through the locking member 111, thereby pushing the locking tongue 71 to move. The locking tongue 71 drives the drive block 61 to move, thus realizing the conversion of the receiving assembly from the original state to the receiving state. When the push plate 12 moves towards the camshaft 13 and pushes out the camshaft 13, the push plate 12 gradually approaches the locking tongue 71. When the push plate 12 abuts against the locking tongue 71, the push plate 12 squeezes the guide slope 711, causing the locking tongue 71 to move downward and retract into the mounting groove 611, releasing the locking member from locking the locking tongue 71. The torque of the torsion spring causes the connecting plate 51 to rotate and reset, thus realizing the conversion of the receiving plate 41 from the receiving state to the original state.

[0047] In this embodiment, a shock absorber 251 is provided on the slide rod 25. The shock absorber 251 is a compression spring. One end of the shock absorber 251 is fixedly connected to the mounting bracket 2, and the other end is fixedly connected to the drive block 61. During the rotation and reset process of the connecting plate 51, the connecting plate 51 pulls the drive block 61 to reset via the tension spring. During the reset process of the drive block 61, the shock absorber 251 is stretched, thereby slowing down the reset speed of the connecting plate 51, the drive block 61, and the receiving assembly, and avoiding impact.

[0048] The working principle of this invention is as follows:

[0049] When the mold is opened, the moving mold 11 moves away from the fixed mold 14. During this process, the locking member 111 at the bottom of the moving mold 11 gradually approaches the locking tongue 71. When the locking member 111 abuts against the locking tongue 71, the locking member 111 pushes the locking tongue 71 to move. The locking tongue 71 drives the drive block 61 to move away from the receiving component. The drive block 61 pulls the connecting plate 51 to rotate against the torsion of the torsion spring through the tension spring. The rotation axis is the connection end between the connecting plate 51 and the mounting bracket 2. When the connecting plate 51 rotates, it drives the mounting plate 42 and the receiving plate 41 to rotate. Under the limit of the second guide rail 26, they remain in a vertical state until the receiving plate 41 changes from the original state to the receiving state, ready to receive the camshaft 13.

[0050] As the push plate 12 moves toward the camshaft 13, it gradually approaches the locking tongue 71. During this process, the push plate 12 pushes the camshaft 13 off the moving mold 11 via the push rod. The shaft body 132 of the camshaft 13 is heavier and fits into the receiving groove 411, while the transmission gear 131 is lighter and hangs outside the receiving groove 411. When the push plate 12 abuts against the locking tongue 71, the push plate 12 presses against the guide slope 711, causing the locking tongue 71 to move downward and retract into the mounting groove 611, releasing the locking member from locking the locking tongue 71. The torque of the torsion spring causes the connecting plate 51 to rotate and reset. During the rotation and reset process of the connecting plate 51, it drives the mounting plate 42 and the receiving plate 41 to rotate and stay in the limit position of the second guide rail 26, maintaining a vertical state until the receiving plate 41 changes from the receiving state to the original state. During this process, the connecting plate 51 pulls the drive block 61 to reset via a tension spring. During the reset of the drive block 61, the shock absorber 251 is stretched. When the receiving assembly receives the camshaft 13 and passes through the channel, the two first guide rails 31 can receive the transmission gear 131 of the camshaft 13 and slide down along the inclined direction of the first guide rails 31, so that the camshaft 13 is disengaged from the receiving groove 411, so as to realize the cyclic unloading.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A camshaft insert injection molding unloading device, comprising a moving mold, a push plate, and a receiving mechanism, characterized in that: The receiving mechanism includes a mounting frame, a receiving component, a reset component, a drive component, and a receiving component. The mounting frame is located below the moving mold. The receiving component, reset component, and drive component are all mounted on the mounting frame. The receiving component is located at one end of the mounting frame. When the receiving component receives material, it is in the receiving state. After receiving material, the receiving component is in the original state. The reset component is used to drive the receiving component to switch from the receiving state to the original state. The drive component is used to drive the receiving component to switch from the original state to the receiving state. When the receiving component switches from the receiving state to the original state, the receiving component receives and transfers the camshaft on the receiving component. The drive assembly is equipped with a locking component, the bottom of the moving mold is equipped with a locking element, and the bottom of the push plate is equipped with an unlocking element. When the moving mold moves away from the fixed mold, the locking element can lock with the locking assembly. The moving mold drives the drive assembly to move, and the drive assembly drives the receiving assembly to switch from the original state to the receiving state. When the push plate moves towards the camshaft side to eject the camshaft, the unlocking element can release the locking element from the locking assembly. The reset assembly drives the receiving assembly to switch from the receiving state to the original state.

2. The camshaft insert injection molding unloading device according to claim 1, characterized in that: The reset assembly includes a connecting plate and a torsion spring. One end of the connecting plate is rotatably mounted on the mounting frame via the torsion spring, and the other end is rotatably connected to the receiving assembly. The drive assembly includes a drive block and an elastic transmission component. The drive block is slidably mounted on the mounting frame. The locking assembly is disposed on the drive block. One end of the elastic transmission component is connected to the drive block, and the other end is connected to the connecting plate.

3. The camshaft insert injection molding unloading device according to claim 2, characterized in that: The mounting bracket is provided with sliding rods on both sides, and the drive block is provided with through holes at both ends. The drive block is slidably sleeved on the sliding rods.

4. The camshaft insert injection molding unloading device according to claim 3, characterized in that: The slide bar is equipped with a shock absorber, one end of which is fixedly connected to the mounting bracket and the other end is fixedly connected to the drive block.

5. The camshaft insert injection molding unloading device according to claim 2, characterized in that: The top of the drive block is provided with a mounting groove. The locking assembly includes a locking tongue and a spring. The locking tongue is slidably disposed in the mounting groove. One end of the spring is fixedly connected to the mounting groove, and the other end is fixedly connected to the locking tongue. A guide slope is provided at the end of the locking tongue near the unlocking component.

6. A camshaft insert injection molding unloading device according to any one of claims 2-5, characterized in that: The receiving assembly includes a receiving plate and a mounting plate. The mounting plate is fixedly connected to the bottom of the receiving plate. A receiving groove is provided on the top of the receiving plate for receiving the shaft of the camshaft. A connecting groove is provided on the mounting plate, and a rod is provided in the connecting groove. The end of the connecting plate is hinged to the rod.

7. The camshaft insert injection molding unloading device according to claim 6, characterized in that: The receiving component includes two identical first guide rails, which are inclined and have a channel between them. When the receiving component passes through the channel, the two first guide rails can receive the transmission gear of the camshaft, causing the camshaft to disengage from the receiving groove and slide down along the inclined direction of the first guide rails.

8. The camshaft insert injection molding unloading device according to claim 7, characterized in that: The receiving groove is inclined, and the inclination direction of the receiving groove is consistent with the inclination direction of the first guide rail.

9. A camshaft insert injection molding unloading device according to claim 6, characterized in that: The mounting bracket is provided with second guide rails on both sides, and guide blocks are rotatably mounted on both sides of the bottom of the mounting plate, with the guide blocks slidably sleeved on the second guide rails.

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