Faucet casting molding apparatus

Abstract

The application relates to a faucet casting forming equipment which comprises a base, a fixed die, a movable die, a fixed plate, a movable plate, a ejector pin and a stopper, the fixed die is fixedly connected to the base, the movable die is slidably connected to the base, the fixed die and the movable die are used for die closing to form a forming cavity, the fixed plate is fixedly connected to the base and located on the side of the movable die away from the fixed die, the movable plate is slidably connected to the base and located between the movable die and the fixed plate, the sliding direction of the movable plate is parallel to the sliding direction of the movable die, the ejector pin is fixedly connected to the movable plate, one end of the ejector pin towards the fixed die is used for extending into the forming cavity, the stopper is fixedly connected to the movable plate and used for touching the fixed die, the ejector pin extends into the forming cavity when the movable plate touches the fixed plate and the movable die touches the movable plate, and the ejector pin is separated from the forming cavity when the stopper touches the fixed die and the movable die touches the fixed die. The application has the effect of simplifying the driving mechanism by only driving the movable die to reciprocate and automatically completing the material ejection and resetting of the ejector pin.

Description

Technical Field

[0001] This application relates to the field of casting equipment, and more particularly to a faucet casting equipment. Background Technology

[0002] Common casting methods for faucets include: sand casting, hand casting, gravity casting, or low-pressure casting.

[0003] Sand casting is a casting method that uses molding sand to compact the casting. It is suitable for producing castings of various shapes, sizes, and common alloys, requires less equipment investment, and uses readily available and inexpensive raw materials.

[0004] After the faucet is cast, the mold opening drive mechanism moves to move the moving mold and open the mold. After the mold opens, the ejector drive mechanism moves to move the ejector pin and push the product out of the mold. Summary of the Invention

[0005] To simplify the drive mechanism, this application provides a faucet casting molding device.

[0006] This application provides a faucet casting and molding equipment, which adopts the following technical solution:

[0007] A faucet casting molding device includes a base, a fixed mold, a movable mold, a fixed plate, a movable plate, an ejector pin, and a stop rod.

[0008] The fixed mold is fixedly connected to the base, and the movable mold is slidably connected to the base. The fixed mold and the movable mold are used to close the mold to form a molding cavity.

[0009] The fixed plate is fixedly connected to the base and is located on the side of the moving mold opposite to the fixed mold. The moving plate is slidably connected to the base, and the sliding direction of the moving plate is parallel to the sliding direction of the moving mold. The moving plate is located between the moving mold and the fixed plate.

[0010] The ejector pin is fixedly connected to the movable plate, and the end of the ejector pin facing the fixed mold is used to extend into the molding cavity. The push rod is fixedly connected to the movable plate and is used to contact the fixed mold.

[0011] When the moving plate touches the fixed plate and the moving mold touches the moving plate, the ejector pin extends into the molding cavity.

[0012] When the push rod touches the fixed mold and the moving mold touches the fixed mold, the ejector pin disengages from the molding cavity.

[0013] By adopting the above technical solution, the mold closing process is as follows: the moving mold is driven to approach the fixed mold, the push rod touches the fixed mold first, so that the relative positions between the push rod, the moving plate, the ejector pin and the fixed mold are fixed. The moving mold continues to approach the fixed mold until it touches the fixed mold, then the ejector pin disengages from the molding cavity, thus completing the mold closing.

[0014] Mold opening process: Drive the moving mold closer to the fixed plate (away from the fixed mold). The moving plate first touches the fixed plate, fixing the relative position between the moving plate, the ejector pin and the fixed plate. The moving mold continues to approach the fixed plate until it touches the moving plate. Then the ejector pin pushes the product out of the mold, thus completing the mold opening and demolding.

[0015] Simply drive the moving mold to move back and forth, and the ejector pin will automatically complete the ejection and resetting, thus simplifying the drive mechanism.

[0016] Preferably, it also includes a drive cylinder for driving the moving mold to move, the drive cylinder including a pneumatic cylinder and / or a hydraulic cylinder.

[0017] By adopting the above technical solutions, the cylinders and oil cylinders can apply stable forces to the moving mold, which helps to keep the interaction forces between the components within a reasonable range, thus facilitating the normal operation of the equipment.

[0018] Preferably, the system further includes a guide rod, which is fixedly connected to the base or the fixed mold, and the moving mold is slidably connected to the guide rod.

[0019] By adopting the above technical solution, the sliding direction of the moving mold is limited by the guide rod, which is beneficial to the normal operation of the equipment.

[0020] Preferably, it also includes a mold core for embedding in the molding cavity, and the ejector pin for contacting the mold core.

[0021] By adopting the above technical solution, the number of contact points between the ejector pin and the product is reduced, which helps to make the product surface smooth.

[0022] Preferably, the mold core includes a body and a sand layer, with the sand layer covering the body.

[0023] Preferably, the abutment rod includes a thick rod and a thin rod, one end of the thick rod is used to contact the fixed mold, one end of the thin rod is fixedly connected to the other end of the thick rod, and the other end of the thin rod is connected to the moving plate.

[0024] When the end face of the thick rod touches the moving mold towards the thin rod, the ejector pin disengages from the molding cavity.

[0025] By adopting the above technical solution, when the push rod and ejector pin move away from the moving mold relative to the fixed mold, the push rod and ejector pin are prevented from detaching from the moving mold, which is conducive to the normal operation of the equipment.

[0026] Preferably, the thicker rod includes a bonding post, a compression spring, and a positioning post. The compression spring is located between the bonding post and the positioning post. The positioning post is connected to the thinner rod. The bonding post is used to contact the fixed mold.

[0027] When the compression spring is in its original length state, the positioning post touches the moving mold, and the fitting post touches the fixed mold, there is a gap between the moving mold and the fixed mold.

[0028] By adopting the above technical solution, when the moving mold touches the fixed mold, the elastic force of the compression spring causes the contact column to squeeze the fixed mold, which helps to keep the position of the ejector pin stable so as to complete the casting.

[0029] Preferably, a compression spring and a switch are provided between the fixed plate and the moving plate. One end of the compression spring is used to contact the fixed plate, and the other end is used for the moving plate to contact it. The switch is connected to the compression spring and is used to contact the fixed plate and output a stop signal.

[0030] When the compression spring is in its original length state, there is a gap between the switch and the fixed plate.

[0031] By adopting the above technical solution, as the moving mold approaches the fixed plate, the moving plate squeezes the compression spring. The elastic force of the compression spring causes the moving plate to approach the moving mold, and the compression spring undergoes elastic deformation. When the switch touches the fixed plate, the moving mold stops moving.

[0032] If the casting cannot be demolded smoothly, the squeezing force between the ejector pin and the casting is equal to the elastic force of the spring. The squeezing force between the ejector pin and the casting can be limited by controlling the magnitude of the elastic force, thereby reducing the probability of mold damage.

[0033] Preferably, the device further includes a bracket, which is slidably connected to a compression spring, and the sliding direction of the bracket is parallel to the sliding direction of the moving plate, and the switch is connected to the bracket.

[0034] By adopting the above technical solution, the position of the bracket is adjusted to adjust the deformation of the compressed spring when the switch touches the fixed plate, thereby adjusting the magnitude of the elastic force.

[0035] Preferably, the compression spring is a helical spring that rotates about its own axis, and the bracket is threadedly connected to the helical spring.

[0036] By adopting the above technical solution, the length of the compression spring on the side of the bracket facing the fixed plate is adjusted by rotating the compression spring, thereby adjusting the amount of deformation of the compression spring when the switch touches the fixed plate.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. Only the moving mold needs to be driven to reciprocate, and the ejector pins will automatically complete the ejection and resetting, thus simplifying the drive mechanism;

[0039] 2. Mold closing process: The moving mold is driven to approach the fixed mold. The ejector pin first touches the fixed mold, which fixes the relative positions of the ejector pin, moving plate, ejector pin and fixed mold. The moving mold continues to approach the fixed mold until it touches the fixed mold. Then the ejector pin disengages from the molding cavity, and the mold closing is completed.

[0040] 3. Mold opening process: Drive the moving mold closer to the fixed plate (away from the fixed mold). The moving plate first touches the fixed plate, so that the relative position between the moving plate, the ejector pin and the fixed plate is fixed. The moving mold continues to approach the fixed plate until it touches the moving plate. Then the ejector pin pushes the product to demold, thus completing the mold opening and casting demolding.

[0041] 4. When the moving mold touches the fixed mold, the elastic force of the compression spring causes the contact pillar to squeeze the fixed mold, which helps to keep the position of the ejector pin stable in order to complete the casting.

[0042] 5. If the casting cannot be demolded smoothly, the squeezing force between the ejector pin and the casting is equal to the elastic force of the spring. The squeezing force between the ejector pin and the casting can be limited by controlling the magnitude of the elastic force, thereby reducing the probability of mold damage. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of a faucet casting and molding equipment.

[0044] Figure 2 This is a cross-sectional view of the mold.

[0045] Explanation of reference numerals in the attached drawings: 1. Base; 2. Mold; 21. Fixed mold; 22. Moving mold; 221. Guide hole; 222. Ejector hole; 223. Through hole; 23. Guide rod; 24. Molding cavity; 25. Mold core; 3. Ejector mechanism; 31. Fixed plate; 32. Moving plate; 33. Ejector pin; 34. Support rod; 341. Thick rod; 3411. Fitting post; 3412. Compression spring; 3413. Positioning post; 342. Thin rod; 4. Drive mechanism; 41. Drive cylinder; 42. Compression spring; 43. Bracket; 44. Switch. Detailed Implementation

[0046] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0047] Reference Figure 1 This application discloses a faucet casting equipment, including a base 1, a mold 2, a feeding mechanism 3 and a driving mechanism 4.

[0048] Mold 2 includes a fixed mold 21, a moving mold 22, and a guide rod 23.

[0049] The fixed mold 21 is fixedly connected to the base 1, and the movable mold 22 is slidably connected to the base 1. The fixed mold 21 and the movable mold 22 are used to close the mold to form a molding cavity 24. The movable mold 22 is provided with a guide hole 221, the axis of which is parallel to the sliding direction of the movable mold 22. One end of the guide rod 23 is fixedly connected to the fixed mold 21, and the other end of the guide rod 23 passes through the guide hole 221 and is fixedly connected to the base 1, so that the movable mold 22 is slidably sleeved on the guide rod 23.

[0050] In this embodiment, four guide rods 23 are provided, and the guide rods 23 are horizontally arranged, that is, the sliding direction of the moving mold 22 is horizontal. The guide rods 23 can be round rods or square rods.

[0051] Reference Figure 1 and Figure 2 The feeding mechanism 3 includes a fixed plate 31, a moving plate 32, a ejector pin 33, and a stop rod 34.

[0052] The fixed plate 31 is fixedly connected to the base 1, and the fixed plate 31 is located on the side of the moving mold 22 opposite to the fixed mold 21. The moving plate 32 is located between the fixed plate 31 and the moving mold 22, and the moving plate 32 is slidably connected to the moving mold 22, and the sliding direction of the moving plate 32 is parallel to the axial direction of the guide rod 23. The ejector pin 33 and the push rod 34 are both fixedly connected to the moving plate 32.

[0053] The moving mold 22 is provided with an ejector hole 222 and a through hole 223. Both the ejector hole 222 and the through hole 223 penetrate the moving mold 22, and the axial direction of both the ejector hole 222 and the through hole 223 is parallel to the sliding direction of the moving mold 22. The ejector hole 222 is connected to the molding cavity 24, while the through hole 223 is not connected to the molding cavity 24. An ejector pin 33 is slidably embedded in the ejector hole 222, and the end of the ejector pin 33 facing the fixed mold 21 is used to extend into the molding cavity 24. A stop rod 34 is slidably embedded in the through hole 223, and the stop rod 34 is used to contact the fixed mold 21.

[0054] After the distance between the fixed mold 21 and the fixed plate 31 is greater than the thickness of the moving mold 22 and the moving plate 32.

[0055] When the moving plate 32 touches the fixed plate 31 and the moving mold 22 touches the moving plate 32, the ejector pin 33 extends into the molding cavity 24.

[0056] When the push rod 34 touches the fixed mold 21 and the moving mold 22 touches the fixed mold 21, the ejector pin 33 disengages from the molding cavity 24, and there is a gap between the moving plate 32 and the moving mold 22.

[0057] It should be noted that the ejector pin 33 disengaging from the molding cavity 24 includes at least the following two situations: preferably, the surface of the ejector pin 33 facing the fixed mold 21 is flush with the inner wall of the molding cavity 24; alternatively, the surface of the ejector pin 33 facing the fixed mold 21 is located inside the ejector hole 222.

[0058] The drive mechanism 4 includes a drive cylinder 41. The drive cylinder 41 includes a pneumatic cylinder and / or a hydraulic cylinder. The cylinder body of the drive cylinder 41 is connected to the base 1, and the piston rod of the drive cylinder 41 is connected to the moving mold 22.

[0059] The mold 2 also includes a mold core 25. The mold core 25 is used to be embedded in the molding cavity 24 for product molding, such as molding the inlet and outlet of a faucet. At the same time, when the mold core 25 is embedded in the molding cavity 24, the mold core 25 covers the ejector hole 222; that is, the ejector pin 33 is used to contact the mold core 25.

[0060] In this embodiment, the mold core 25 includes a body and a sand layer, with the sand layer covering the body. The sand layer is used for forming the casting.

[0061] The through hole 223 is a stepped hole, and the inner diameter of the end of the through hole 223 facing the fixed mold 21 is larger than the inner diameter of the other end of the through hole 223.

[0062] The stop rod 34 includes a thick rod 341 and a thin rod 342. One end of the thick rod 341 is used to contact the fixed mold 21, and one end of the thin rod 342 is fixedly connected to the other end of the thick rod 341. The other end of the thin rod 342 is connected to the moving plate 32. The thick rod 341 includes a fitting post 3411, a compression spring 3412, and a positioning post 3413. The compression spring 3412 is located between the fitting post 3411 and the positioning post 3413. The positioning post 3413 is connected to the thin rod 342, and the end face of the positioning post 3413 facing the thin rod 342 is used to contact the stepped surface of the through hole 223. The fitting post 3411 is used to contact the fixed mold 21.

[0063] When the fitting column 3411 touches the fixed mold 21 (specifically, when the fitting column 3411 touches the stepped surface of the through hole 223), the ejector pin 33 disengages from the molding cavity 24, and there is a gap between the moving plate 32 and the moving mold 22.

[0064] When the compression spring 3412 is in its original length state, the positioning post 3413 touches the moving mold 22, and the contacting post 3411 touches the fixed mold 21, there is a gap between the moving mold 22 and the fixed mold 21.

[0065] The drive mechanism 4 also includes a compression spring 42, a bracket 43, a switch 44, and a controller.

[0066] Compression spring 42 is a helical spring, and its axis is parallel to guide rod 23. Bracket 43 is slidably connected to guide rod 23. Bracket 43 has a helical hole, and compression spring 42 passes through the helical hole. Rotating compression spring 42 adjusts the relative position of compression spring 42 and bracket 43 along the axial direction of guide rod 23. Switch 44 is fixedly connected to bracket 43.

[0067] In this embodiment, the bracket 43 is provided with a through groove, and the through groove is used for the guide rod 23 to be embedded, that is, the bracket 43 is slidably sleeved on the guide rod 23, and the bracket 43 and the guide rod 23 are circumferentially fixed.

[0068] Compression spring 42, bracket 43, and switch 44 are all located between moving plate 32 and fixed plate 31. One end of compression spring 42 is used to contact fixed plate 31, and the other end is used to contact moving plate 32. Switch 44 is used to contact fixed plate 31. When switch 44 contacts fixed plate 31, it outputs a stop signal to controller. Controller responds to the stop signal to stop drive cylinder 41.

[0069] The implementation principle of a faucet casting and molding equipment according to an embodiment of this application is as follows:

[0070] The mold core 25 is embedded in one side of the fixed mold 21.

[0071] The controller controls the piston rod of the drive cylinder 41 to extend (in one embodiment, the mold closing switch can be manually pressed to output a mold closing signal to the controller, and the controller responds to the mold closing signal to control the piston rod of the drive cylinder 41 to extend). The moving mold 22 moves towards the fixed mold 21, and the abutment rod 34 (specifically, the contact post 3411) first touches the fixed mold 21, fixing the relative positions of the abutment rod 34, the moving plate 32, the ejector pin 33 and the fixed mold 21. The moving mold 22 continues to approach the fixed mold 21 until it touches the fixed mold 21, at which point the ejector pin 33 disengages from the molding cavity 24, thus completing the mold closing. In the mold closing state, the drive cylinder 41 maintains pressure to ensure stable mold closing.

[0072] Molten aluminum is poured into the molding cavity 24. After the casting has cooled, the controller controls the piston rod of the drive cylinder 41 to retract (in one embodiment, the mold opening switch can be manually pressed to output a mold opening signal to the controller, and the controller responds to the mold opening signal to control the piston rod of the drive cylinder 41 to retract). The moving mold 22 moves away from the fixed mold 21. The moving plate 32 first touches the compression spring 42, and the moving mold 22 continues to move away from the fixed mold 21. The ejector pin 33 extends into the molding cavity 24 to push the mold core 22 and the casting to demold.

[0073] The compression spring 42 continues to be compressed and deformed, causing the bracket 43 to move closer to the fixed plate 31, until the switch 44 touches the fixed plate 31. The switch 44 outputs a stop signal to the controller, and the controller responds to the stop signal to control the drive cylinder 41 to stop.

[0074] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A faucet cast molding apparatus, characterized by: The injection molding machine comprises a base (1), a fixed mold (21), a movable mold (22), a fixed plate (31), a movable plate (32), a ejector pin (33) and a stopper rod (34), The fixed mold (21) is fixedly connected to the base (1), and the movable mold (22) is slidably connected to the base (1), and the fixed mold (21) and the movable mold (22) are used for clamping to form a molding cavity (24), The fixed plate (31) is fixedly connected to the base (1), and the fixed plate (31) is located on a side of the movable mold (22) away from the fixed mold (21), the movable plate (32) is slidably connected to the base (1), and the sliding direction of the movable plate (32) is parallel to the sliding direction of the movable mold (22), and the movable plate (32) is located between the movable mold (22) and the fixed plate (31), The ejector pin (33) is fixedly connected to the movable plate (32), one end of the ejector pin (33) towards the fixed mold (21) is used for extending into the molding cavity (24), and the stopper rod (34) is fixedly connected to the movable plate (32), and the stopper rod (34) is used for touching the fixed mold (21), In the case that the movable plate (32) touches the fixed plate (31) and the movable mold (22) touches the movable plate (32), the ejector pin (33) extends into the molding cavity (24), In the case that the stopper rod (34) touches the fixed mold (21) and the movable mold (22) touches the fixed mold (21), the ejector pin (33) is separated from the molding cavity (24). Further comprising a mold core (25), the mold core (25) is used for embedding into the molding cavity (24), and the ejector pin (33) is used for touching the mold core (25).

2. The faucet spin-casting apparatus of claim 1, wherein: Further comprising a driving cylinder (41), the driving cylinder (41) is used for driving the movable mold (22) to move, and the driving cylinder (41) comprises a pneumatic cylinder and / or an oil cylinder.

3. The faucet spin-casting apparatus of claim 1, wherein: Further comprising a guide rod (23), the guide rod (23) is fixedly connected to the base (1) or the fixed mold (21), and the movable mold (22) is slidably connected to the guide rod (23).

4. The faucet spin-casting apparatus of claim 1, wherein: The mold core (25) comprises a body and a sand layer, and the sand layer is wrapped outside the body.

5. The faucet spin-casting apparatus according to claim 1 or 4, characterized by: The stopper rod (34) comprises a thick rod (341) and a thin rod (342), one end of the thick rod (341) is used for touching the fixed mold (21), one end of the thin rod (342) is fixedly connected to the other end of the thick rod (341), and the other end of the thin rod (342) is connected to the movable plate (32), In the case that the end face of the thick rod (341) towards the thin rod (342) touches the movable mold (22), the ejector pin (33) is separated from the molding cavity (24).

6. The faucet spin-casting apparatus of claim 5, wherein: The thick rod (341) comprises a fitting column (3411), a compression spring (3412) and a positioning column (3413), the compression spring (3412) is located between the fitting column (3411) and the positioning column (3413), the positioning column (3413) is connected to the thin rod (342), and the fitting column (3411) is used for touching the fixed mold (21), In the case that the compression spring (3412) is in the original length state, the positioning column (3413) touches the movable mold (22), and the fitting column (3411) touches the fixed mold (21), there is a spacing between the movable mold (22) and the fixed mold (21).

7. The faucet spin-casting apparatus according to claim 1 or 4, characterized by: The fixed plate (31) and the moving plate (32) are provided with a compression spring (42) and a switch (44), one end of the compression spring (42) is used to touch the fixed plate (31), the other end of the compression spring (42) is used for the moving plate (32) to touch, the switch (44) is connected to the compression spring (42), the switch (44) is used to touch the fixed plate (31) and output a stop signal, In the original length state of the compression spring (42), there is a spacing between the switch (44) and the fixed plate (31).

8. The faucet spin-casting apparatus of claim 7, wherein: It also includes a bracket (43), the bracket (43) is slidingly connected to the compression spring (42), and the sliding direction of the bracket (43) is parallel to the sliding direction of the moving plate (32), and the switch (44) is connected to the bracket (43).

9. The faucet spin-casting apparatus of claim 8, wherein: The compression spring (42) is a spiral spring, the compression spring (42) rotates around its own axis, and the bracket (43) is threadedly connected to the spiral spring.

Images