An improved non-passenger car engine intake pipe mold

Abstract

The present invention proposes an improved non-passenger vehicle engine intake pipe mold, including an upper mold plate, a lower mold plate and a mold core assembly arranged up and down; the mold core assembly includes a first mold core, a second mold core, a rotating mold core, a fixed plate, a first connecting plate, a second connecting plate and a rotating plate; the first mold core is clamped in the lower mold cavity and fixedly installed on the fixed plate; the second mold core is clamped in the lower mold cavity and fixedly installed on the rotating plate, and the rotating mold core is clamped in the lower mold cavity and rotatably installed on the rotating plate; in the mold closing state, the first mold core, the second mold core, and the rotating mold core are all clamped in the upper mold cavity, and the first mold core, the second mold core, the rotating mold core, the upper mold cavity, and the lower mold cavity cooperate to form a mold cavity. In order to facilitate product demoulding, the present invention divides the mold core into a first mold core and a second mold core; the rotating mold core is designed to place a metal skeleton c. After the metal skeleton c is placed on the rotating mold core, it is manually rotated to make it close to the first mold core, and the rotating mold core is first rotated to open when demoulding.

Description

Technical Field

[0001] The invention relates to a mould, in particular to an improved non-passenger vehicle engine intake pipe mould. Background Art

[0002] Engine rubber intake pipes for non-passenger vehicles such as construction machinery, agricultural machinery, heavy trucks, etc. have a wide variety of products, large sizes, and high prices, and have broad market prospects. Figure 1 The rubber intake pipe for a non-passenger vehicle engine shown in the figure is combined with rubber a and metal frames b and c. The mold used in production is an injection mold. Due to the large size of the intake pipe, the existing mold is inconvenient to demold, and the metal frame is inconvenient to assemble. In addition, the inner hole of the metal frame b of the intake pipe is threaded. If the rubber drills into it, it will be difficult to remove it, which will affect the subsequent assembly of the intake pipe. Summary of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes an improved non-passenger vehicle engine intake pipe mold.

[0004] The present invention provides an improved non-passenger vehicle engine intake pipe mold, comprising an upper mold plate, a lower mold plate and a mold core assembly arranged up and down;

[0005] An upper mold cavity and an upper flow channel connected to the upper mold cavity are provided at the bottom of the upper mold plate, and an injection hole connected to the upper flow channel is provided through the upper mold plate;

[0006] A lower mold cavity is provided at a position corresponding to the top of the lower mold plate, and a skeleton groove is provided at the bottom of the lower mold cavity; a lower flow channel connected to the lower mold cavity is also provided at a position corresponding to the upper flow channel on the top of the lower mold plate;

[0007] The mold core assembly includes a first mold core, a second mold core, a rotating mold core, a fixed plate, a first connecting plate, a second connecting plate and a rotating plate; both ends of the fixed plate are connected to the first connecting plate and the second connecting plate respectively; the rotating plate and the fixed plate are arranged parallel to each other, one end of the rotating plate is rotatably connected to the first connecting plate and the other end is detachably connected to the second connecting plate; the first mold core is clamped in the lower mold cavity and fixedly installed on the fixed plate; the second mold core is clamped in the lower mold cavity and fixedly installed on the rotating plate, and one end of the second mold core away from the rotating plate is docked with the first mold core; the rotating mold core is clamped in the lower mold cavity and rotatably installed on the rotating plate;

[0008] In the mold closing state, the first mold core, the second mold core, and the rotating mold core are all inserted into the upper mold cavity, and the first mold core, the second mold core, the rotating mold core, the upper mold cavity, and the lower mold cavity cooperate to form a mold cavity.

[0009] Preferably, a positioning platform is provided at one end of the first mold core away from the fixed plate, the positioning platform has an isosceles trapezoidal cross-section, and the angle formed by the waist and the bottom edge of the isosceles trapezoid is 40-50 degrees, and a positioning groove adapted to the positioning platform and for the positioning platform to be inserted is provided at one end of the second mold core away from the rotating plate.

[0010] Preferably, an upper slot is provided at the bottom of the upper template, and a lower slot is provided at the top of the lower template corresponding to the upper slot; in the mold closing state, the upper slot cooperates with the lower slot to form a slot and the rotating plate is clamped in the slot.

[0011] Preferably, a mounting seat is fixed to one side of the rotating plate close to the fixed plate, and the rotating mold core is rotatably mounted on the mounting seat; an upper groove is opened on the upper mold plate at a position corresponding to the mounting seat, and a lower groove is opened on the lower mold plate at a position corresponding to the mounting seat. In the mold closing state, the upper groove and the lower groove cooperate to form an avoidance groove and the mounting seat is clamped in the avoidance groove.

[0012] Preferably, a rotating shaft is fixed to the end of the first connecting plate away from the fixed plate, the rotating plate is rotatably connected to the rotating shaft, a buckle is provided at the end of the rotating plate away from the rotating shaft, a slot for inserting the buckle is provided at the end of the second connecting plate close to the rotating plate, and a spring lock that can be used to lock the buckle is installed on the second connecting plate.

[0013] Preferably, an insert is provided in the skeleton groove, and the insert includes a first cylinder and a second cylinder which are integrally formed and coaxially arranged, the diameter of the first cylinder is larger than the diameter of the second cylinder, and an annular sealing rib coaxially arranged therewith is provided on the side of the first cylinder close to the second cylinder.

[0014] Preferably, it also includes an upper mold pad, which is located above the upper mold plate and fixedly connected to the upper mold plate. A gate sleeve is installed on the upper mold pad and the gate sleeve extends into the injection hole. The gate sleeve is provided with a glue injection hole.

[0015] Preferably, it also includes a lower mold pad, which is located below the lower mold plate and fixedly connected to the lower mold plate.

[0016] Preferably, a guide block is provided on the lower mold plate at a position on the side of the rotating mold core away from the lower mold cavity, and an inclined surface inclined toward the lower mold cavity is provided on the top of the guide block, and the angle formed by the inclined surface and the horizontal plane is 35-38 degrees.

[0017] The present invention proposes an improved non-passenger vehicle engine intake pipe mold, wherein the mold core assembly adopts a frame structure, the first mold core and the second mold core are respectively fixed on the fixed plate and the rotating plate, the fixed plate is fixed with the first connecting plate and the second connecting plate by bolts, the rotating plate is respectively connected with the first connecting plate and the second connecting plate by a rotating shaft and a spring lock, and the rotating mold core is connected to the rotating plate by a mounting seat; in order to facilitate product demoulding, the mold core is divided into the first mold core and the second mold core, the spring lock is manually pressed, one end of the rotating plate is opened, and the other end rotates around the rotating shaft, and rotates open together with the second mold core and the rotating mold core. The rotating mold core is designed to place a metal skeleton c. After the metal skeleton c is placed on the rotating mold core, it is manually rotated to make it close to the first mold core, and the rotating mold core is first rotated to open when demoulding. Since the inner hole of metal frame b is threaded, if rubber drilled into it, it will be difficult to remove, which will affect the assembly of the intake pipe later. In order to avoid this situation, we designed an annular sealing rib on the insert. The hardness of the insert reaches HRC50-55 after quenching. When metal frame b is compressed, the contact area of ​​the annular sealing rib is small and the pressure is large, so the metal frame b is deformed and produces an imprint, thereby sealing the glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a rubber intake pipe for a non-passenger vehicle engine;

[0019] Figure 2 This is a schematic structural diagram of an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0020] Figure 3 A cross-sectional view of an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0021] Figure 4 This is a structural schematic diagram of a core component in an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0022] Figure 5 for Figure 4 A top view of

[0023] Figure 6 This is a schematic structural diagram of an upper mold plate in an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0024] Figure 7 This is a schematic structural diagram of a lower mold plate in an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0025] Figure 8 This is a schematic structural diagram of a first mold core in an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0026] Fig. 9This is a schematic structural diagram of a second mold core in an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0027] Fig.10 This is a schematic structural diagram of a rotating mold core in an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0028] Fig.11 This is a schematic structural diagram of an insert in an improved non-passenger vehicle engine intake pipe mold proposed by the present invention;

[0029] Fig.12 The present invention is a schematic structural diagram of a second connecting plate in an improved non-passenger vehicle engine intake pipe mold. DETAILED DESCRIPTION

[0030] Reference Figure 2-Figure 12 The present invention provides an improved non-passenger vehicle engine intake pipe mold, comprising an upper mold plate 1, a lower mold plate 2 and a mold core assembly arranged up and down;

[0031] An upper mold cavity 3 and an upper flow channel 4 communicating with the upper mold cavity 3 are provided at the bottom of the upper mold plate 1, and an injection hole 5 communicating with the upper flow channel 4 is provided through the upper mold plate 1. An upper mold pad 6 is provided above the upper mold plate 1 and the upper mold plate 1 is fixedly connected to the upper mold pad 6. A sprue bushing 7 is installed on the upper mold pad 6 and the sprue bushing 7 extends into the injection hole 5, and a glue injection hole 8 is provided on the sprue bushing 7.

[0032] A lower mold cavity 9 is provided at the top of the lower mold plate 2 at a position corresponding to the upper mold cavity 3, a skeleton groove 10 is provided at the bottom of the lower mold cavity 9, and an insert 32 is provided in the skeleton groove 10. The insert 32 includes a first cylinder and a second cylinder that are integrally formed and coaxially arranged. The diameter of the first cylinder is greater than the diameter of the second cylinder, and a ring-shaped sealing rib 33 coaxially arranged with the first cylinder is provided on the side of the first cylinder close to the second cylinder. A lower flow channel 11 connected to the lower mold cavity 9 is also provided at the top of the lower mold plate 2 at a position corresponding to the upper flow channel 4. A lower mold pad 12 is provided below the lower mold plate 2, and the lower mold plate 2 is fixedly connected to the lower mold pad 12.

[0033] The mold core assembly includes a first mold core 13, a second mold core 14, a rotating mold core 15, a fixed plate 16, a first connecting plate 17, a second connecting plate 18 and a rotating plate 19. The two ends of the fixed plate 16 are connected to the first connecting plate 17 and the second connecting plate 18 respectively. The rotating plate 19 is arranged parallel to the fixed plate 16, one end of the rotating plate 19 is rotatably connected to the first connecting plate 17 and the other end is detachably connected to the second connecting plate 18. The first mold core 13 is clamped in the lower mold cavity 9 and fixedly installed on the fixed plate 16. The second mold core 14 is clamped in the lower mold cavity 9 and fixedly installed on the rotating plate 19, and the end of the second mold core 14 away from the rotating plate 19 is docked with the first mold core 13. The rotating mold core 15 is clamped in the lower mold cavity 9, and a mounting seat 20 is fixed on the side of the rotating plate 19 close to the fixed plate 16, and the rotating mold core 15 is rotatably installed on the mounting seat 20. An upper groove 21 is formed on the upper template 1 at a position corresponding to the mounting seat 20 , and a lower groove 22 is formed on the lower template 2 at a position corresponding to the mounting seat 20 .

[0034] In the mold closing state, the first mold core 13, the second mold core 14, and the rotating mold core 15 are all inserted into the upper mold cavity 3, the first mold core 13, the second mold core 14, the rotating mold core 15, the upper mold cavity 3, and the lower mold cavity 9 cooperate to form a mold cavity 31, the upper groove 21 cooperates with the lower groove 22 to form an avoidance groove and the mounting seat 20 is clamped in the avoidance groove.

[0035] When the present invention is in use, the metal skeleton b is mounted on the second cylinder of the insert 32, and then the insert 32 is placed in the skeleton groove 10; the metal skeleton c is mounted on the rotating mold core 15, and then the mold core assembly is assembled to the lower mold plate 2, so that the first mold core 13, the second mold core 14, and the rotating mold core 15 are assembled in place; then the mold is closed, and the rubber is injected through the gate sleeve 7 to produce the air intake pipe. The mold core assembly of the present invention adopts a frame structure, the first mold core 13 and the second mold core 14 are fixed on the fixed plate 16 and the rotating plate 19 respectively, the fixed plate 16 is fixed with the first connecting plate 17 and the second connecting plate 18 by bolts, the rotating plate 19 is connected with the first connecting plate 17 and the second connecting plate 18 respectively by the rotating shaft 27 and the spring lock 29, and the rotating mold core 15 is connected to the rotating plate 19 by the mounting seat 20; in order to facilitate the demoulding of the product, the mold core is divided into the first mold core 13 and the second mold core 14, the spring lock 29 is manually pressed, one end of the rotating plate 19 is opened, and the other end rotates around the rotating shaft 27, and rotates and opens together with the second mold core 14 and the rotating mold core 15. The rotating mold core 15 is designed to place the metal skeleton c. After the metal skeleton c is placed on the rotating mold core 15, it is manually rotated to make it close to the first mold core 13. When demoulding, the rotating mold core 15 is first rotated to open. Since the inner hole of the metal frame b is threaded, if rubber drilled into it, it will be difficult to remove, which will affect the assembly of the intake pipe later; in order to avoid this situation, we designed an annular sealing rib 33 on the insert 32. The hardness of the insert 32 reaches HRC50-55 after quenching. When the metal frame b is compressed, the contact area of ​​the annular sealing rib 33 is small and the pressure is large, the metal frame b is deformed and produces an imprint, thereby sealing the glue.

[0036] In this embodiment, refer to Figure 8 , Fig. 9 , a positioning platform 23 is provided at one end of the first mold core 13 away from the fixed plate 16, and the positioning platform 23 has an isosceles trapezoidal cross section, and the angle formed by the waist and the bottom edge of the isosceles trapezoid is 40-50 degrees, and a positioning groove 24 adapted to the positioning platform 23 and for the positioning platform 23 to be inserted is provided at one end of the second mold core 14 away from the rotating plate 19. The first mold core 13 and the second mold core 14 are designed to cooperate and position, which can prevent the first mold core 13 and the second mold core 14 from being misaligned when they are combined. At the same time, in order to smoothly combine and open the first mold core 13 and the second mold core 14, the matching angle between the positioning platform 23 and the positioning groove 24 is designed to be 50 degrees.

[0037] In this embodiment, refer to Figure 6 , Figure 7 The upper mold plate 1 is provided with an upper slot 25 at the bottom, and a lower slot 26 is provided at the top of the lower mold plate 2 at a position corresponding to the upper slot 25. In the mold closing state, the upper slot 25 cooperates with the lower slot 26 to form a slot and the rotating plate 19 is connected to the slot.

[0038] In a specific embodiment, refer to Figure 4, Figure 5 A rotating shaft 27 is fixed to the end of the first connecting plate 17 away from the fixed plate 16, and the rotating plate 19 is rotatably connected to the rotating shaft 27. A buckle 28 is provided at the end of the rotating plate 19 away from the rotating shaft 27, and a slot 30 for inserting the buckle 28 is provided at the end of the second connecting plate 18 close to the rotating plate 19, and a spring lock 29 for locking the buckle 28 is installed on the second connecting plate 18.

[0039] In a specific embodiment, refer to Figure 4 , Figure 5 A guide block 34 is provided on the lower mold plate 2 at a position on the side of the rotating mold core 15 away from the lower mold cavity 9. A slope is provided on the top of the guide block 34, which is inclined toward the side of the lower mold cavity 9, and the angle formed by the slope and the horizontal plane is 38 degrees. In order to ensure that the rotating mold core 15 is close to the first mold core 13 during the falling process, a guide block 34 is designed on the lower mold plate 2. The top of the guide block 34 is designed as a slope, and the angle with the horizontal plane is 38 degrees. When the rotating mold core 15 falls with the core assembly, the slope of the guide block 34 closes the rotating mold core 15 toward the first mold core 13 to ensure that the rotating mold core 15 is assembled in place.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An improved non-passenger vehicle engine intake pipe mold, characterized in that: It includes an upper mold plate, a lower mold plate and a mold core assembly arranged up and down; An upper mold cavity and an upper flow channel connected to the upper mold cavity are provided at the bottom of the upper mold plate, and an injection hole connected to the upper flow channel is provided through the upper mold plate; A lower mold cavity is provided at a position corresponding to the upper mold cavity on the top of the lower mold plate, and a skeleton groove is provided at the bottom of the lower mold cavity; a lower flow channel connected to the lower mold cavity is also provided at a position corresponding to the upper flow channel on the top of the lower mold plate; The mold core assembly includes a first mold core, a second mold core, a rotating mold core, a fixed plate, a first connecting plate, a second connecting plate and a rotating plate; both ends of the fixed plate are connected to the first connecting plate and the second connecting plate respectively; the rotating plate and the fixed plate are arranged parallel to each other, one end of the rotating plate is rotatably connected to the first connecting plate and the other end is detachably connected to the second connecting plate; the first mold core is clamped in the lower mold cavity and fixedly installed on the fixed plate; the second mold core is clamped in the lower mold cavity and fixedly installed on the rotating plate, and one end of the second mold core away from the rotating plate is docked with the first mold core; the rotating mold core is clamped in the lower mold cavity and rotatably installed on the rotating plate; In the mold closing state, the first mold core, the second mold core, and the rotating mold core are all inserted into the upper mold cavity, and the first mold core, the second mold core, the rotating mold core, the upper mold cavity, and the lower mold cavity cooperate to form a mold cavity; A positioning platform is arranged at one end of the first mold core away from the fixed plate, the positioning platform has an isosceles trapezoidal cross section, and the angle formed by the waist and the bottom edge of the isosceles trapezoid is 40-50 degrees; a positioning groove adapted to the positioning platform and for the positioning platform to be inserted is arranged at one end of the second mold core away from the rotating plate; An upper card slot is also provided at the bottom of the upper template, and a lower card slot is provided at the top of the lower template at a position corresponding to the upper card slot; in the mold closing state, the upper card slot cooperates with the lower card slot to form a card slot and the rotating plate is clamped in the card slot; A mounting seat is fixed on one side of the rotating plate close to the fixed plate, and the rotating mold core is rotatably mounted on the mounting seat; an upper groove is opened on the upper mold plate at a position corresponding to the mounting seat, and a lower groove is opened on the lower mold plate at a position corresponding to the mounting seat. In the mold closing state, the upper groove cooperates with the lower groove to form an avoidance groove and the mounting seat is clamped in the avoidance groove; A rotating shaft is fixed to one end of the first connecting plate away from the fixed plate, the rotating plate is rotatably connected to the rotating shaft, a buckle is provided at one end of the rotating plate away from the rotating shaft, a slot for inserting the buckle is provided at one end of the second connecting plate close to the rotating plate, and a spring lock buckle for locking the buckle is installed on the second connecting plate; An insert is arranged in the skeleton groove, and the insert includes a first cylinder and a second cylinder which are integrally formed and coaxially arranged, the diameter of the first cylinder is larger than the diameter of the second cylinder, and a ring-shaped sealing rib coaxially arranged with the second cylinder is arranged on one side of the first cylinder close to the second cylinder; A guide block is arranged on the lower mold plate at a position on the side of the rotating mold core away from the lower mold cavity. A slope inclined toward the lower mold cavity is arranged on the top of the guide block, and an angle formed by the slope and the horizontal plane is 35-38 degrees.

2. The improved non-passenger vehicle engine intake pipe mold according to claim 1, characterized in that: It also includes an upper mold pad, which is located above the upper mold plate and fixedly connected to the upper mold plate. A gate sleeve is installed on the upper mold pad and the gate sleeve extends into the injection hole. The gate sleeve is provided with a glue injection hole.

3. The improved non-passenger vehicle engine intake pipe mold according to claim 1, characterized in that: The lower mold pad is located below the lower mold plate and is fixedly connected to the lower mold plate.

Images