Sand core loose piece mold with rotary extraction function

Abstract

The utility model discloses a sand core loose piece mould with a rotary extraction function, and particularly relates to the technical field of mould manufacturing, the sand core loose piece mould comprises a supporting seat, the left side and the right side of the front part of the upper end of the supporting seat are fixedly connected with driving mechanisms, and the left side and the right side of the middle part of the upper end of the supporting seat are fixedly connected with core-pulling mechanisms; a downward pressing mechanism is fixedly connected to the rear portion of the upper end of the outer surface of the supporting seat, and jacking mechanisms are fixedly connected to the left side and the right side of the lower portion of the downward pressing mechanism. According to the sand core loose piece mold with the rotating and pulling-away function, a bent pipe can be quickly jacked up through the arranged jacking mechanism after mold manufacturing is completed, the bent pipe does not need to be taken out manually, damage such as collision, scratching or deformation to the bent pipe due to improper operation, uneven force application and the like is avoided, the production efficiency is improved, and the production cost is reduced. According to the bent pipe jacking device, bent pipes can be stably jacked up according to preset procedures and force, damage to the bent pipes is reduced to the maximum extent, the appearance quality and size precision of the bent pipes are guaranteed, and the yield of products is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould production technical field, especially a sand core movable block mould with rotation and separation function. BACKGROUND

[0002] In the casting production process, sand core movable block mould is widely used in the manufacture of castings with complex shape. The traditional sand core movable block mould often adopts linear core pulling when taking out the sand core movable block. However, for some special structure, such as the castings with inclined or curved inner cavity, linear core pulling cannot meet the needs of the sand core movable block smoothly demoulding. If forced linear core pulling, it may cause the sand core movable block damage. The traditional sand core mould mainly connects the movable block and the main mould through the pin, dovetail and other ways when moulding. However, this connection mode has many inconveniences, such as the taking out of the movable block needs to use special tools to take and place, the operation is cumbersome and the efficiency is low. In addition, the traditional mould often needs manual operation in the demoulding process, which not only consumes time and effort, but also has safety risk, so a sand core movable block mould with rotation and separation function is needed. SUMMARY

[0003] The main purpose of the utility model is to provide a sand core movable block mould with rotation and separation function, which can effectively solve the problem of core pulling.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0005] A sand core movable block mould with rotation and separation function, comprising a support seat, the support seat upper end front left side and right side are both fixedly connected with a driving mechanism, the support seat upper end middle left side and right side are both fixedly connected with a core pulling mechanism, the support seat outer surface upper end rear part is fixedly connected with a pressing-down mechanism, and the pressing-down mechanism lower part left side and right side are both fixedly connected with a jacking mechanism.

[0006] Preferably, the driving mechanism comprises a hydraulic cylinder one and an oil pipe, the hydraulic cylinder one is fixedly connected to the support seat inner cavity front right side, the oil pipe is fixedly connected to the support seat inner cavity front right side, the oil pipe inner cavity is slidably connected with a piston sheet, the oil pipe left end is fixedly connected with an L-shaped pipe through a C-shaped pipe, the L-shaped pipe horizontal part rear end is fixedly connected with a tee pipe, the tee pipe left end and right end are both fixedly connected with a straight pipe, the two straight pipe inner cavities are both slidably connected with a piston rod, the two piston rods are both fixedly connected with a support block at the ends away from each other, and the two support blocks are both fixedly connected with a support rod at the ends close to each other.

[0007] Preferably, the output end of the hydraulic cylinder one is fixedly connected to the right end of the piston sheet.

[0008] Preferably, the core pulling mechanism comprises two arc-shaped cavities and two rotating columns, the two arc-shaped cavities are respectively arranged at the middle left side and the middle right side of the upper end of the support base, fixed rings are fixedly connected to the middle inner cavities of the two arc-shaped cavities, and bent pipes are arranged at the rear inner cavities of the two arc-shaped cavities; the two rotating columns are respectively rotationally connected to the middle left side and the middle right side of the support base, rotating blocks are fixedly connected to the outer surfaces of the two rotating columns, sand cores one are fixedly connected to the rear sides of the rotating blocks away from the shaft centers of the same side, rotating plates are rotationally connected to the front sides of the rotating blocks away from the shaft centers of the same side, and fixed blocks are rotationally connected to the ends of the rotating plates away from the rotating blocks of the same side.

[0009] Preferably, the two sand cores one are respectively slidably connected to the inner cavities of the bent pipes of the same side, and the front ends of the two fixed blocks are respectively fixedly connected to the ends of the two support rods of the same side, which are close to each other.

[0010] Preferably, the pressing-down mechanism comprises a plurality of sliding columns, the plurality of sliding columns are all fixedly connected to the rear upper end of the support base, a sliding plate is slidably connected to the outer surfaces of the plurality of sliding columns, a fixed plate is fixedly connected to the upper ends of the plurality of sliding columns, a hydraulic cylinder two is fixedly connected to the upper end of the fixed plate, and the output end of the hydraulic cylinder two penetrates through the upper end of the fixed plate and is fixedly connected to the upper end of the sliding plate.

[0011] Preferably, the jacking mechanism comprises two pressing plates and two arc-shaped blocks, the two pressing plates are respectively fixedly connected to the rear left side and the rear right side of the lower end of the sliding plate, the two arc-shaped blocks are respectively slidably connected to the bottom sides of the inner arc surfaces of the two arc-shaped cavities, T-shaped blocks are fixedly connected to the left end and the right end of the two pressing plates, support boxes are slidably connected to the outer surfaces of the two pressing plates, and push plates are fixedly connected to the lower ends of the two support boxes.

[0012] Compared with the prior art, the core pulling mechanism has the following beneficial effects:

[0013] 1、During use, the driving mechanism and the core pulling mechanism can simultaneously perform core pulling operation on the two bent pipes, compared with core pulling one by one, the production cycle of a single casting is greatly shortened, a larger number of castings can be produced in unit time, and the overall production efficiency is significantly improved.

[0014] 2、During use, the jacking mechanism can quickly jack up the bent pipe after mold making is completed, manual removal of the bent pipe is not needed, the bent pipe will not be damaged due to improper operation, uneven force, etc., the bent pipe can be stably jacked up according to a preset program and force, damage to the bent pipe is minimized, the appearance quality and dimensional accuracy of the bent pipe are ensured, and the yield of products is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1The overall structure schematic view of the utility model is shown in the figure.

[0016] Figure 2 The driving mechanism section structure schematic view of the utility model is shown in the figure.

[0017] Figure 3 The core pulling mechanism section structure schematic view of the utility model is shown in the figure.

[0018] Figure 4 The down mechanism section structure schematic view of the utility model is shown in the figure.

[0019] Figure 5 The jacking mechanism section structure schematic view of the utility model is shown in the figure.

[0020] Figure 6 The overall structure another visual angle schematic view of the utility model is shown in the figure.

[0021] In the figure: 1, support seat; 2, driving mechanism; 21, hydraulic cylinder one; 22, oil pipe; 23, piston sheet; 24, L-shaped pipe; 25, tee pipe; 26, straight pipe; 27, piston rod; 28, support block; 29, support rod; 3, core pulling mechanism; 31, arc cavity; 32, fixed ring; 33, rotating column; 34, rotating block; 35, sand core one; 36, rotating plate; 37, fixed block; 38, elbow pipe; 4, down mechanism; 41, slide column; 42, fixed plate; 43, hydraulic cylinder two; 44, slide plate; 5, jacking mechanism; 51, pressing plate; 52, support box; 53, arc block; 54, push plate; 55, T-shaped block. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] As Figure 1 shown, a sand core movable block mold with rotary pulling-off function, including support seat 1, the support seat 1 upper end front left side and right side are all fixedly connected with driving mechanism 2, the support seat 1 upper end middle left side and right side are all fixedly connected with core pulling mechanism 3, the support seat 1 outer surface upper end rear part is fixedly connected with down mechanism 4, the down mechanism 4 lower part left side and right side are all fixedly connected with jacking mechanism 5.

[0024] The utility model discloses in the specific implementation process, first through the start of the inside drive structure of down -pressing mechanism 4 drive the inside structure of down -pressing mechanism 4 and core pulling mechanism 3 inside structure and adhere to form the cavity, then the inside drive structure of drive mechanism 2 is started and drive the shaft core to enter the inside cavity, then through the inside injection of high temperature liquid metal of down -pressing mechanism 4, then make it inside cooling forming in the cavity, after cooling forming, the inside structure of drive mechanism 2 is started and drive the inside shaft core of core pulling mechanism 3 rotation and leave the inside cavity of the mould that forms, then drive the upper half cavity to go up through the down -pressing mechanism 4, go up simultaneously through the inside structure of down -pressing mechanism 4 drive the inside structure of jacking mechanism 5 operation, make the inside structure of jacking mechanism 5 from the support seat 1 inside cavity and go up and top up the mould that forms to realize the convenient, efficient stripping operation.

[0025] Specifically, in order to achieve the purpose of molding, with reference to Figure 3 and Figure 4 In the present scheme, the down -pressing mechanism 4 includes several slide columns 41, several slide columns 41 are all fixedly connected to the rear part of the upper end of the support seat 1, several slide columns 41 are slidably connected with a slide plate 44 on the outer surface, several slide columns 41 are fixedly connected with a fixed plate 42 on the upper end, the fixed plate 42 is fixedly connected with a hydraulic cylinder two 43 on the upper end, and the output end of the hydraulic cylinder two 43 penetrates the upper end of the fixed plate 42 and is fixedly connected to the upper end of the slide plate 44.

[0026] Further, the core pulling mechanism 3 includes two arc-shaped cavities 31 and two rotating columns 33, two arc-shaped cavities 31 are respectively arranged on the left side and the right side of the middle part of the upper end of the support seat 1, two fixed rings 32 are fixedly connected in the middle part of the inner cavity of the two arc-shaped cavities 31, two bent pipes 38 are placed in the rear part of the inner cavity of the two arc-shaped cavities 31, two rotating columns 33 are respectively rotatably connected to the left side and the right side of the middle part of the support seat 1, two rotating blocks 34 are fixedly connected to the outer surface of the two rotating columns 33, two sand cores one 35 are fixedly connected to the rear part of the side away from the shaft center of the same side rotating block 34 of the two rotating blocks 34, two rotating plates 36 are rotatably connected to the front part of the side away from the shaft center of the same side rotating block 34 of the two rotating blocks 34, and two fixed blocks 37 are rotatably connected to the end away from the same side rotating block 34 of the two rotating plates 36.

[0027] Further, two sand cores one 35 are slidably connected to the inner cavity of the same side bent pipe 38, and the front end of two fixed blocks 37 is fixedly connected to the end of the same side two supporting rods 29 that are close to each other.

[0028] In the above, the slide plate 44 is driven by the hydraulic cylinder two 43 to slide down on the surface of the slide column 41, so that the slide plate 44 is attached to the upper surface of the support base 1, then the arc-shaped cavity 31 is attached to the cavity at the lower end of the slide plate 44, then the high-temperature liquid metal is injected into the two feeding ports at the upper end of the slide plate 44, so that the liquid metal gradually and uniformly cools on the surface of the sand core one 35 in the inner cavity of the rear side of the slide column 41, and the liquid metal becomes the elbow pipe 38 after cooling, so that the purpose of molding is achieved.

[0029] The specific installation mode of the hydraulic cylinder two 43, the connection mode of the oil circuit and the control method used in the above are all conventional designs, and the utility model will not be described in detail.

[0030] Specifically, in order to achieve the purpose of extracting the sand core one 35 for demolding, referring to Figure 2 and Figure 3 In the scheme, the driving mechanism 2 includes a hydraulic cylinder one 21 and an oil pipe 22, the hydraulic cylinder one 21 is fixedly connected to the front right side of the inner cavity of the support base 1, the oil pipe 22 is fixedly connected to the front right side of the inner cavity of the support base 1, the inner cavity of the oil pipe 22 is slidably connected with a piston sheet 23, the left end of the oil pipe 22 is fixedly connected with an L-shaped pipe 24 through a C-shaped pipe, the rear end of the horizontal part of the L-shaped pipe 24 is fixedly connected with a three-way pipe 25, the left end and the right end of the three-way pipe 25 are fixedly connected with straight pipes 26, the inner cavities of the two straight pipes 26 are slidably connected with piston rods 27, the ends of the two piston rods 27 away from each other are fixedly connected with support blocks 28, and the ends of the two support blocks 28 close to each other are fixedly connected with support rods 29.

[0031] Further, the output end of the hydraulic cylinder one 21 is fixedly connected to the right end of the piston sheet 23.

[0032] In the above, first, the inner cavity of the oil pipe 22 needs to be filled with hydraulic oil, then the hydraulic cylinder one 21 is started to push the piston sheet 23 to extrude the hydraulic oil, so that the hydraulic oil enters the inner cavity of the L-shaped pipe 24, then enters the inner cavities of the two straight pipes 26 through the three-way pipe 25, so as to simultaneously push the two piston rods 27 away from each other, and then drive the two support rods 29 away from each other through the two support blocks 28.

[0033] The fixed block 37 is moved by the two support rods 29 moving away from each other, the rotating block 34 is pulled to drive the rotating column 33 to rotate by the rotating plate 36 rotating at the same time, the rotating block 34 drives the sand core one 35 to rotate around the axis of the rotating column 33, the sand core one 35 is pulled to rotate from the inner cavity of the fixed ring 32 to the inner cavity of the arc-shaped cavity 31 on the forward side, so that the sand core one 35 is separated from the inside of the elbow pipe 38, thereby achieving the purpose of demolding.

[0034] The specific installation mode of the hydraulic cylinder 21, the connection mode of the circuit and the control method are all conventional designs, and the utility model will not be described in detail.

[0035] Specifically, in order to achieve the purpose of upwardly lifting the formed elbow pipe 38, referring to Figure 5 In the scheme, the lifting mechanism 5 includes two pressing plates 51 and two arc blocks 53, the two pressing plates 51 are respectively fixedly connected to the left side and the right side of the rear part of the lower end of the sliding plate 44, and the two arc blocks 53 are respectively slidably connected to the bottom side of the inner arc surface of the two arc cavities 31, the left end and the right end of the two pressing plates 51 are fixedly connected with T-shaped blocks 55, the outer surfaces of the two pressing plates 51 are slidably connected with support boxes 52, and the lower ends of the two support boxes 52 are fixedly connected with push plates 54.

[0036] In the above, after the elbow pipe 38 is cooled, the hydraulic cylinder 43 drives the sliding plate 44 to be lifted upward, so that the pressing plate 51 is pulled to be lifted upward, when the pressing plate 51 is lifted upward by a distance, the support box 52 is lifted by the action of the T-shaped block 55 arranged on the both sides of the sliding groove top wall, so that the support box 52 is lifted while driving the arc block 53 to be lifted upward in the inner cavity of the arc cavity 31, and the elbow pipe 38 is lifted upward by the arc block 53, so that the elbow pipe 38 is conveniently taken out.

[0037] It should be particularly pointed out that the specific installation mode of the hydraulic cylinder 43, the connection mode of the circuit and the control method are all conventional designs, and the utility model will not be described in detail.

[0038] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sand core loose pattern mold with a rotary extraction function, comprising a supporting base (1), characterized in that: The left side and the right side of the upper end front part of the support base (1) are fixedly connected with driving mechanisms (2), the left side and the right side of the upper end middle part of the support base (1) are fixedly connected with core pulling mechanisms (3), the rear part of the outer surface of the upper end of the support base (1) is fixedly connected with a pressing mechanism (4), and the left side and the right side of the lower part of the pressing mechanism (4) are fixedly connected with jacking mechanisms (5).

2. A sand core loose piece mold having a rotation extraction function according to claim 1, characterized in that: The driving mechanism (2) comprises a hydraulic cylinder one (21) and an oil pipe (22), the hydraulic cylinder one (21) is fixedly connected to the front right side of the inner cavity of the support base (1), the oil pipe (22) is fixedly connected to the front right side of the inner cavity of the support base (1), the inner cavity of the oil pipe (22) is slidably connected with a piston sheet (23), the left end of the oil pipe (22) is fixedly connected with an L-shaped pipe (24) through a C-shaped pipe, the rear end of the horizontal part of the L-shaped pipe (24) is fixedly connected with a three-way pipe (25), the left end and the right end of the three-way pipe (25) are fixedly connected with straight pipes (26), the inner cavities of the two straight pipes (26) are slidably connected with piston rods (27), the ends, away from each other, of the two piston rods (27) are fixedly connected with support blocks (28), and the ends, close to each other, of the two support blocks (28) are fixedly connected with support rods (29) on the rear side.

3. A core print lifter mould having a rotational extraction function according to claim 2, characterised in that: The output end of the hydraulic cylinder one (21) is fixedly connected to the right end of the piston sheet (23).

4. A core print lifter mold having a rotating extraction function according to claim 2, characterized in that: The core pulling mechanism (3) comprises two arc-shaped cavities (31) and two rotating columns (33), the two arc-shaped cavities (31) are respectively arranged on the left side and the right side of the upper end middle part of the support base (1), the inner cavities of the two arc-shaped cavities (31) are fixedly connected with fixed rings (32) in the middle parts, the rear parts of the inner cavities of the two arc-shaped cavities (31) are placed with bent pipes (38), the two rotating columns (33) are respectively rotatably connected to the left side and the right side of the middle part of the support base (1), the outer surfaces of the two rotating columns (33) are fixedly connected with rotating blocks (34), the rear parts of the sides, away from the shaft centers of the same side rotating columns (33), of the two rotating blocks (34) are fixedly connected with sand cores one (35), the front parts of the sides, away from the same side shaft centers, of the two rotating blocks (34) are rotatably connected with rotating plates (36), and the ends, away from the same side rotating blocks (34), of the two rotating plates (36) are rotatably connected with fixed blocks (37).

5. A core print lifter mould having a rotational extraction function according to claim 4, characterised in that: The two sand cores one (35) are respectively slidably connected in the inner cavities of the same side bent pipes (38), and the front ends of the two fixed blocks (37) are respectively fixedly connected with the ends, close to each other, of the same side two support rods (29).

6. A core print lifter mold having a rotating extraction function according to claim 4, wherein: The pressing mechanism (4) comprises a plurality of slide columns (41), the plurality of slide columns (41) are fixedly connected to the rear part of the upper end of the support base (1), the outer surfaces of the plurality of slide columns (41) are commonly slidably connected with a sliding plate (44), the upper ends of the plurality of slide columns (41) are commonly fixedly connected with a fixed plate (42), the upper end of the fixed plate (42) is fixedly connected with a hydraulic cylinder two (43), and the output end of the hydraulic cylinder two (43) penetrates through the upper end of the fixed plate (42) and is fixedly connected to the upper end of the sliding plate (44).

7. A core print lifter mould having a rotational extraction function according to claim 6, characterised in that: The jacking mechanism (5) comprises two pressing plates (51) and two arc blocks (53), the two pressing plates (51) are fixedly connected to the left side and the right side of the rear part of the lower end of the sliding plate (44) respectively, the two arc blocks (53) are slidingly connected to the inner arc surface bottom side of the two arc cavities (31) respectively, the left end and the right end of the two pressing plates (51) are fixedly connected with T-shaped blocks (55) respectively, the outer surfaces of the two pressing plates (51) are slidingly connected with supporting boxes (52) respectively, and the lower ends of the two supporting boxes (52) are fixedly connected with push plates (54).

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