CN112060481A

CN112060481A - Injection mold for producing inspection well

Info

Publication number: CN112060481A
Application number: CN202010797333.7A
Authority: CN
Inventors: 齐文; 边玉彬; 张卫国; 张品
Original assignee: Shandong Wenyuan Environmental Technology Co ltd
Current assignee: Shandong Wenyuan Environmental Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2020-12-11

Abstract

The invention discloses an injection mold for producing an inspection well, which has the technical scheme that the injection mold comprises two side mold blocks capable of being linearly drawn out in the lateral direction, the side mold blocks are symmetrical in structure, a first mold cavity for injecting a well body, a second mold cavity for forming a main bearing pipe and a third mold cavity for forming a branch pipe are arranged on each side mold block, the second mold cavity and the third mold cavity are semi-cylindrical, the axial directions of the second mold cavity and the third mold cavity are mutually vertical, one ends of the second mold cavity and the third mold cavity are communicated with the first mold cavity, the end parts of the second mold cavity and the third mold cavity are connected, and a notch for communicating is arranged on the connecting part of the second mold cavity and the third mold cavity. The invention has the advantages that: 1. the whole structure of the die is small, and the cost is low; 2. through the design of die cavity for the product stable in structure that moulds plastics out is high, and the material cost is lower.

Description

Injection mold for producing inspection well

Technical Field

The invention relates to the field of molds, in particular to an injection mold for producing inspection wells.

Background

The inspection well is an accessory structure on a pipeline system, and mainly has the main functions of periodically inspecting and clearing a pipe system and dredging water flow. Manholes are typically provided at pipe crossings, turns, pipe size or slope changes, drops, etc., and at straight pipe runs at intervals. Currently, in order to improve the production efficiency and reduce the production cost, most inspection wells are made of plastics.

The existing inspection well usually comprises a well body, the top of the well body is a main pipe, the side is a branch pipe, and as the existing patent with publication number of CN203960992U, the inspection well seat comprises a well seat, the upper end of the well seat is provided with a well socket, the side wall of the well seat is provided with at least one drain pipe socket, the outer walls of the well socket and the drain pipe socket are provided with annular reinforcing ribs, a 360-degree bearing platform is arranged between the well socket and the well seat, the drain pipe socket is internally provided with a 360-degree bearing platform, and the 360-degree bearing platform is in an annular arc structure; in the attached drawings combined with the specification, a gap can be clearly formed between the drain pipe socket and the shaft socket.

Aiming at the inspection well, because a gap exists between the drain pipe bell and spigot of the shaft, the positions of the drain pipe bell and spigot of the shaft are all positions which are connected and stressed, and the directions of structural forces of the drain pipe bell and spigot and the shaft bell and spigot are vertical, therefore, the situation that the two parts are mutually broken is easy to occur, the load of a product is low, the service life is limited, the structure of the inspection well needs to be improved, and once the structure of the inspection well is modified, the inspection well can be smoothly molded by injection and demoulded, and the matched mould needs to be modified integrally.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an injection mold for producing an inspection well, and solves the technical problems that: an inspection well meeting the load requirement is produced with low cost and high efficiency.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides an injection mold for producing inspection shaft, includes two side form modules that can the side direction straight line was drawed, side form module structure symmetry each other, be provided with the first die cavity that is used for the well body of moulding plastics, be used for the shaping owner to accept the second die cavity of pipe and the third die cavity that is used for the shaping branch pipe on the side module, the second die cavity is the halfcylinder with the third die cavity, the axial mutually perpendicular of second die cavity and third die cavity, the one end between second die cavity and third die cavity and first die cavity intercommunication and this tip between them meet, be provided with the breach that is used for the intercommunication on the position that both meet of second die cavity and third die cavity.

Through above-mentioned technical scheme, in the design of mould, use the side module of two side drawings to carry out the shaping, combine semi-cylindrical second die cavity and third die cavity, can once only wholly mould plastics out the inspection shaft in the die cavity when two side module compound dies like this, the mould structure is less, and manufacturing cost is lower, and in the time of the die sinking, very swift convenient, the straight line is drawn and is pulled out can, and stability is stronger. On die cavity internal design, meet second die cavity and first die cavity one end, the position that meets moreover passes through the breach intercommunication, the inspection shaft that moulds plastics out like this owner's socket pipe and the tip between the branch pipe be the integrated structure, the vertical pressure that produces on the main socket pipe can be through integrated structure homodisperse to branch pipe and well body like this, ensure that the inspection shaft that moulds plastics out has higher bearing performance, and can be less with the inspection shaft overall structure of heavy-calibre to do, reduce the cost of mould and product.

The invention is further configured to: the top and the bottom of two side modules are provided with top module, die block respectively, but the top module straight line is close to or keeps away from end module, the rectilinear motion direction of top module is unanimous with the rectilinear motion direction of side module, first die cavity and second die cavity are coaxial setting, be provided with the first type pellet that can insert first die cavity and second die cavity on the top module, be provided with the second type pellet that can insert first die cavity on the end module, clearance between first type pellet, second type pellet, first die cavity and the second die cavity forms the well body jointly and the space of main accepting pipe.

Through above-mentioned technical scheme, end module and top module can be drawn and pulled along the vertically direction, combines the core structure above it, and in the drawing of patterns, the top module can be separated with the piece is taken out to the side almost simultaneously, the condition of moulding can not appear each other moreover.

The invention is further configured to: the injection mold also comprises a side pulling block which can be linearly pulled out in a lateral direction, the linear motion of the side pulling block is vertical to the side mold block, a third mold core block which can be inserted into a third mold cavity is arranged on the side pulling block, and a gap for forming the branch pipe is formed by a gap between the third mold cavity and the third mold core block.

Through the technical scheme, the motion trail of the side pulling block is perpendicular to that of the side die block, the interference can not occur in the die opening process, the die opening speed is high, and the die production cost is low.

The invention is further configured to: the number of the side drawing blocks is two, the number of the third die cavities on the side drawing blocks is also two, the side die block is provided with an insert, the insert is detachably connected with the side die block, and the insert is positioned on a connecting point of one of the third die cavities, the first die cavity and the second die cavity, so that the die can be used for production.

By the technical scheme, the number of the third die cavities and the number of the side pumping blocks are two, so that the inspection well produced by direct injection molding in the injection molding process is of a double-branch structure; the connecting points of the third die cavity, the first die cavity and the second die cavity are arranged to be insert structures, if the inspection well of the single branch pipe is required to be produced by the die, the insert is only required to be replaced by the insert with larger thickness, and the insert directly collides with the third die core block to seal one of the third die cavities.

The invention is further configured to: the top module is provided with an embedded groove, and when the side module is folded, the side module can be inserted into the embedded groove.

Through above-mentioned technical scheme, the side form piece can insert the caulking groove in, and then when the compound die was moulded plastics, whole mould stable in structure, the caulking groove can play the effect of mode locking. When the mold is opened, the top module moves upwards first to open the mold.

The invention is further configured to: the side of each side module is an inclined plane, and the inclination direction of the inner wall of the caulking groove is consistent with that of the side module.

Through above-mentioned technical scheme, the structure on inclined plane can increase the area of contact of caulking groove and side module, is the power that the mode locking also can be received to side module side, stability when improving the mode locking, promotes the trend power of side module toward the interior simultaneously through inclined plane structure increase, further improves the structural stability of side module when moulding plastics, is difficult for appearing not hard up.

The invention is further configured to: the injection mold further comprises a mold base, the bottom module is fixed on the mold base, a guide plate for the side module and the side pulling block to slide linearly is fixedly arranged on the mold base, and a sliding groove for clamping the side module or the side pulling block is formed in the guide plate.

Through above-mentioned technical scheme, the deflector cooperation spout structure can improve the side module and the stability of the piece linear motion is taken out to the side, guarantees its compound die and die sinking that can be quick.

The invention is further configured to: and the side module and the side pumping block are both connected with a drawing oil cylinder for providing linear motion power.

Through above-mentioned technical scheme, the pull hydro-cylinder can provide stable power take off, makes mould open and shut mould speed very fast, long-time stable long-distance commentaries on classics.

The invention is further configured to: and a cross-shaped structural reinforcing rib groove is formed in the inner wall of the first die cavity.

Through above-mentioned technical scheme, the inspection shaft well body surface distribution that the structure strengthening rib groove can make the production out has the strengthening rib, improves structural stability.

The invention is further configured to: annular pipe orifice reinforcing rib grooves are formed in the second die cavity and the third die cavity.

Through above-mentioned technical scheme, the inspection shaft main faucet pipe that mouth of pipe strengthening rib groove can make production and branch pipe surface distribution have the strengthening rib, improves structural stability.

In summary, compared with the prior art, the beneficial effects of the invention are as follows:

1. the whole structure of the die is small, and the cost is low;

2. through the design of the die cavity, the injection molded product has high structure stability and lower material cost;

3. the movable part of the die is pulled out linearly, so that the die is stable in formation and high in demoulding speed.

Drawings

FIG. 1 is a block diagram of a production manhole according to an embodiment;

FIG. 2 is a block diagram of an embodiment;

FIG. 3 is a structural diagram of the top module after opening the mold according to the embodiment

FIG. 4 is a structural diagram of a bottom module of the structure after the mold is opened according to the embodiment;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a block diagram of an embodiment side module;

FIG. 7 is an enlarged view of a portion of FIG. 6 at B;

fig. 8 is an internal structural view of the embodiment.

Reference numerals: 1. a well body; 11. a main faucet pipe; 12. a branch pipe; 2. a side module; 21. a bevel; 22. an insert; 23. a notch; 3. a top module; 31. caulking grooves; 32. a first type core block; 4. a bottom module; 41. a second type core block; 5. a side drawing block; 51. a third type core block; 6. a mold frame; 61. a guide plate; 62. a chute; 71. a first mold cavity; 72. a second mold cavity; 73. a third mold cavity; 74. a structural reinforcement groove; 75. the mouth of pipe strengthening rib groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

An injection mold for producing an inspection well, wherein the produced inspection well comprises a well body, a main bearing pipe and branch pipes for bearing side discharge pipes, as shown in figure 1, the number of the branch pipes of the inspection well can be one or two, and the axes of the branch pipes and the main bearing pipe are mutually perpendicular.

As shown in fig. 2, the injection mold includes a mold frame 6, and the mold frame 6 is adapted to be fixed to an injection molding machine. The die frame 6 is fixedly provided with a bottom die block 4, and the bottom die block 4 is provided with a side die block 2 capable of sliding linearly along the X-axis direction and a side drawing block 5 capable of sliding linearly along the Y-axis direction. And a top module 3 which can linearly move along the Z-axis direction is also arranged above the side module 2 and the side pumping block 5. When the side pumping block 5, the side module 2 and the top module 3 are folded on the bottom module 4 together, a cavity for forming an inspection well for injection molding is formed inside.

As shown in fig. 2 and 4, a guide plate 61 for the side mold block 2 and the side pulling block 5 to slide linearly is fixedly arranged on the mold frame 6, a horizontally extending sliding groove 62 is arranged on the guide plate 61, the groove-shaped cross section of the sliding groove 62 is of a square structure, and the side edges of the side mold block 2 or the side pulling block 5 are provided with protruding structures and are clamped in the sliding groove 62. The side module 2 and the side pumping block 5 are both connected with drawing oil cylinders for providing linear motion power, and the drawing oil cylinders are used for providing power for linear sliding of the side module 2 and the side pumping block 5.

As shown in fig. 4, the side modules 2 are two in number and are symmetrically configured about the center. The number of the side drawing blocks 5 is two in number, and the side drawing blocks are symmetrical about the center. The linear motion tracks of the side module 2 and the side drawing block 5 are mutually vertical.

As shown in fig. 4 to 6, the side mold block 2 is provided with a first mold cavity 71 for injection molding of the well body, a second mold cavity 72 for molding of the main socket, and a third mold cavity 73 for molding of the branch pipe. The top die block 3 is provided with a first core block 32 which can be inserted into the first die cavity 71 and the second die cavity 72, the bottom die block 4 is provided with a second core block 41 which can be inserted into the first die cavity 71, and gaps among the first core block 32, the second core block 41, the first die cavity 71 and the second die cavity 72 jointly form a well and a space of a main bearing pipe. The side extraction block 5 is provided with a third core block 51 which can be inserted into a third die cavity 73, and a gap between the third die cavity 73 and the third core block 51 forms a gap for forming a branch pipe.

The first mold cavity 71 and the second mold cavity 72 are coaxially arranged, and the first mold cavity 71, the second mold cavity 72 and the third mold cavity 73 are all in a semi-cylindrical structure. The axes of the second die cavity 72 and the third die cavity 73 are perpendicular to each other, one end of the second die cavity 72 and one end of the third die cavity 73 are communicated with the first die cavity 71, the end parts of the second die cavity 72 and the third die cavity 73 are connected, a notch 23 for communicating is arranged on the connecting part of the second die cavity 72 and the third die cavity 73, the shape of the notch 23 is shown in the figure, a plurality of inward depressions are further arranged on the side wall of the notch 23, and the fusion degree of the main bearing pipe and the branch pipe on the inspection well can be improved.

As shown in figures 6 to 7, the width of the notch 23 is wider than 10mm to ensure that the lateral width of the connecting part of the main bearing pipe and the branch pipe of the inspection well is longer to avoid fracture. The depth of the inside of the notch 23 is the thickness of the branch pipe plus the thickness of the socket of the main adapting pipe, and the minimum of the two is 6mm, so that the materials filled in the notch 23 can effectively disperse the pressure of the main adapting pipe to the branch pipe, and the situation that the part between the main adapting pipe and the branch pipe is broken is avoided.

As shown in fig. 3, the top module 3 is provided with a groove 31, when the side modules 2 are closed, the side modules 2 can be inserted into the groove 31, the side surface of each side module 2 is a bevel 21, and the inner wall of the groove 31 is consistent with the inclination direction of the side module 2.

As shown in fig. 6 and 8, a cross-shaped structural reinforcing rib groove 74 is formed on the inner wall of the first mold cavity 71. Annular nozzle bead slots 75 are provided in second die cavity 72 and third die cavity 73. Each side module 2 is provided with an insert 22, the insert 22 is detachably connected with the side module 2, the insert 22 is positioned at the connection point of a third cavity 73, a first cavity 71 and a second cavity 72, and the surface of the insert 22 is basically consistent with the surface of the other third cavity 73, the first cavity 71 and the second cavity 72.

The production flow of the die is as follows: firstly, the side mold block 2 and the side drawing block 5 are folded on the bottom mold block 4, and the top mold block 3 covers the top of the side mold block 2. The second step is that: the materials are injected and molded in the die cavity and each die core of the side die block 2. Thirdly, the top module 3 is separated from the side module 2, and then the side extraction block 5 and the side module 2 are simultaneously extracted in four directions. And fifthly, ejecting the product from the bottom die block 4, folding the side die block 2, the side drawing block 5 and the top die block 3, and further performing the next step of injection molding.

When the die is used for producing an inspection well of a single branch pipe, the inserts 22 of the two side pumping blocks 5 can be separated, a new insert 22 is replaced, the thickness of the new insert 22 is higher, the new insert can be abutted against the outer wall of the third core block 51 when the die is closed, and then the material can block the inlet of the cavity of the branch pipe at the position when flowing.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. The utility model provides an injection mold for producing inspection shaft, characterized by: but including two side module (2) that side direction straight line was drawed, side module (2) structure symmetry each other, be provided with first die cavity (71) that are used for the well body of moulding plastics on side module (2), be used for the shaping owner to accept second die cavity (72) of pipe and third die cavity (73) that are used for the shaping branch pipe, second die cavity (72) are the halfcylinder with third die cavity (73), the axial mutually perpendicular of second die cavity (72) and third die cavity (73), one end and first die cavity (71) intercommunication and this tip between them of second die cavity (72) and third die cavity (73) are met, be provided with breach (23) that are used for the intercommunication on the position that both meet of second die cavity (72) and third die cavity (73).

2. The injection mold for producing inspection wells according to claim 1, wherein: the top and the bottom of two side module (2) are provided with top module (3), end module (4) respectively, but top module (3) straight line is close to or keeps away from end module (4), the rectilinear motion direction of top module (3) is unanimous with the rectilinear motion direction of side module (2), first die cavity (71) and second die cavity (72) are coaxial setting, be provided with first type pellet (32) that can insert first die cavity (71) and second die cavity (72) on top module (3), be provided with second type pellet (41) that can insert first die cavity (71) on end module (4), clearance between first type pellet (32), second type pellet (41), first die cavity (71) and second die cavity (72) forms well body and the main space of accepting the pipe jointly.

3. The injection mold for producing an inspection well according to claim 1 or 2, wherein: the injection mold also comprises a side extraction block (5) capable of being linearly extracted in the lateral direction, the linear motion of the side extraction block (5) is perpendicular to that of the side mold block (2), a third mold core block (51) capable of being inserted into a third mold cavity (73) is arranged on the side extraction block (5), and a gap between the third mold cavity (73) and the third mold core block (51) forms a gap for forming a branch pipe.

4. The injection mold for producing inspection wells according to claim 3, wherein: the side-pulling die comprises two side-pulling blocks (5), three die cavities (73) in the side-pulling blocks (5) are also two in number, an insert (22) is arranged on a side die block (2), the insert (22) is detachably connected with the side die block (2), and the insert (22) is located at a connecting point of the third die cavity (73), the first die cavity (71) and the second die cavity (72).

5. The injection mold for producing inspection wells according to claim 2, wherein: the top module (3) is provided with a caulking groove (31), and when the side module (2) is folded, the side module (2) can be inserted into the caulking groove (31).

6. The injection mold for producing inspection wells according to claim 5, wherein: the side surface of each side module (2) is an inclined surface (21), and the inner wall of the caulking groove (31) is consistent with the inclined direction of the side module (2).

7. The injection mold for producing inspection wells according to claim 3, wherein: injection mold still includes die carrier (6), end module (4) are fixed on die carrier (6), fixed being provided with on die carrier (6) supplies side module (2) and side to take out gliding deflector (61) of piece (5) straight line, be provided with on deflector (61) with supply side module (2) or side take out spout (62) of piece (5) block.

8. The injection mold for producing inspection wells according to claim 3, wherein: and the side module (2) and the side pumping block (5) are both connected with drawing oil cylinders for providing linear motion power.

9. The injection mold for producing inspection wells according to claim 1, wherein: the inner wall of the first die cavity (71) is provided with a cross-shaped structural reinforcing rib groove (74).

10. The injection mold for producing inspection wells according to claim 1, wherein: annular nozzle reinforcing rib grooves (75) are arranged in the second die cavity (72) and the third die cavity (73).