Split type manifold and mold system having the same

Abstract

The present invention discloses a split manifold and a mold system having the same. The split manifold includes an upper plate body, a lower plate body and a flow channel, one of the bottom surface of the upper plate body and the top surface of the lower plate body is provided with a protrusion, the other of the bottom surface of the upper plate body and the top surface of the lower plate body is provided with a groove, the protrusion is embedded in the groove, the flow channel is located between the upper plate body and the lower plate body and is surrounded by the groove and the protrusion, and the protrusion blocks the opening of the groove. The mold system includes a mold and the manifold, and the manifold is fastened to the mold. Not only does it ensure convenient glue cleaning and maintenance of the flow channel, but also by adopting a concave-convex clamp design with matching protrusions and grooves between the upper plate body and the lower plate body, rather than the traditional flat glue sealing, the requirements for the flatness of the upper and lower plate body fitting surfaces are reduced, and leakage caused by loose flow channel sealing is avoided.

Description

Technical Field

[0001] The present invention relates to the field of flow channel technology, and in particular to a split type manifold and a mold system having the same, in particular to a hot runner mold system. Background Art

[0002] The manifold is a component of the hot runner mold system or the cold runner mold system. The internal flow channels of the traditional manifold are usually processed by gun drilling, which is not convenient for cleaning the rubber in the flow channels and the maintenance of the manifold flow channels is not convenient.

[0003] Therefore, in Chinese Patent No. CN204109272U, a split diverter plate is provided, which includes two separately arranged diverter plate units 4 and 11, each of which has a groove processed on the surface. The two diverter plate units are buckled up and down so that their respective grooves enclose the flow channel 12 of the diverter plate. Therefore, when it is necessary to clean the glue and maintain the flow channel 12, the two diverter plate units can be separated, which is convenient to operate.

[0004] However, this type of manifold has the following problems: due to the large planar area of ​​the manifold, the flatness of the mating surfaces of the two manifold plate units cannot be fully guaranteed during the processing, resulting in the surfaces of the upper and lower manifold plate units being unable to be completely fitted together, and then the flow channel is not sealed tightly and leakage occurs; in addition, high injection molding pressure will also cause a gap to form between the mating surfaces of the upper and lower manifold plate units, which will also cause leakage. Summary of the invention

[0005] In order to solve the technical problem that the flow channel of the existing split manifold is not sealed tightly and is easy to leak, the purpose of the present invention is to provide a split manifold and a mold system having the same.

[0006] To achieve one of the above-mentioned purposes of the invention, one embodiment of the present invention provides a split-type diverter plate, comprising an upper plate body, a lower plate body and a flow channel, wherein one of the bottom surface of the upper plate body and the top surface of the lower plate body is provided with a protrusion, and the other of the bottom surface of the upper plate body and the top surface of the lower plate body is provided with a groove, the protrusion is embedded in the groove, the flow channel is located between the upper plate body and the lower plate body and is surrounded by the groove and the protrusion, and, in the cross section of the flow channel, the protrusion blocks the opening of the groove.

[0007] As a further improvement of an embodiment of the present invention, the protrusion and the groove both extend along the flow channel.

[0008] As a further improvement of an embodiment of the present invention, in the cross section of the flow channel, the protrusion and the groove are interference fit.

[0009] As a further improvement of an embodiment of the present invention, the protrusion is formed integrally on the bottom surface of the upper plate body so as to protrude downward, and the groove is formed integrally on the top surface of the lower plate body so as to be recessed downward.

[0010] As a further improvement of an embodiment of the present invention, in the cross section of the flow channel, the groove has a semicircular bottom wall arranged opposite to the opening, and two side walls extending along the tangential direction with two ends of the bottom wall;

[0011] Wherein: the upper end of the side wall intersects with the top surface of the lower plate body through a transition angle extending outward from bottom to top, and the protrusion is arranged in an arch shape with a radius greater than or equal to the radius of the bottom wall, or is arranged in a rectangular shape that fits at least the upper part of the side wall; or,

[0012] The groove also has an inclined wall connecting the top surface of the lower plate body and the side wall, the top of the inclined wall intersects with the top surface of the lower plate body through a transition angle extending outward from bottom to top, the protrusion fits with the inclined wall, and the width of the protrusion decreases from top to bottom.

[0013] As a further improvement of an embodiment of the present invention, one of the lower plate body and the upper plate body has a through hole, and the other of the two has a locking hole adapted to the through hole;

[0014] The diverter plate further comprises a fastener, one end of which passes through the through hole and is fastened and fitted in the locking hole to limit the upper plate body and the lower plate body from moving away from each other in the up-down direction.

[0015] As a further improvement of an embodiment of the present invention, the locking hole is configured as a threaded hole, and the fastener is configured as a screw matching the threaded hole.

[0016] In order to achieve one of the above-mentioned objects of the invention, an embodiment of the present invention provides a split type manifold, characterized in that it includes an upper plate body, a lower plate body and a flow channel, the top surface of the lower plate body is attached to the bottom surface of the upper plate body, the flow channel is located between the upper plate body and the lower plate body, and the flow channel is surrounded by a first flow channel groove concavely arranged on the bottom surface of the upper plate body and a second flow channel groove concavely arranged on the top surface of the lower plate body, and the manifold further includes a concave-convex structure, and the concave-convex structure includes:

[0017] A protrusion protruding from one of the bottom surface of the upper plate body and the top surface of the lower plate body;

[0018] A groove is recessed on the other of the bottom surface of the upper plate body and the top surface of the lower plate body, and the protrusion is accommodated in the groove.

[0019] As a further improvement of an embodiment of the present invention, the concave-convex structures are provided on both sides of the flow channel, and each of the concave-convex structures is arranged to extend in a long strip along the flow channel.

[0020] As a further improvement of an embodiment of the present invention, one of the lower plate body and the upper plate body has a through hole, and the other of the two has a locking hole adapted to the through hole;

[0021] The splitter plate further comprises a fastener, one end of which passes through the through hole and is fastened and fitted in the locking hole to limit the upper plate body and the lower plate body from moving away from each other in the up-down direction;

[0022] The locking hole is configured as a threaded hole, and the fastener is configured as a screw matching the threaded hole.

[0023] To achieve one of the above-mentioned purposes of the invention, one embodiment of the present invention provides a mold system, including a mold and a split manifold as described in any of the above embodiments, wherein the manifold is fastened to the mold.

[0024] As a further improvement of an embodiment of the present invention, the manifold has a fastening hole that passes through the lower plate body and the upper plate body from top to bottom, the mold has a matching hole that matches the fastening hole, and the mold system includes a locking screw, one end of the locking screw passes through the fastening hole and is screwed into the matching hole;

[0025] The top surface of the upper plate body and the mold, as well as the bottom surface of the lower plate body and the mold, are both abutted and connected via pads.

[0026] Compared with the prior art, the present invention has the following beneficial effects: it not only ensures convenient glue cleaning and maintenance of the flow channel, but also reduces the requirements for the flatness of the top surface of the lower plate body and the bottom surface of the upper plate body due to the need for flow channel sealing by adopting a convex-concave clamp-type design with matching convex-concave grooves between the upper plate body and the lower plate body, rather than the traditional flat sealing, thereby ensuring that the flow channel is sealed tightly without leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the lower plate body of Example 1 of the present invention;

[0028] Figure 2 is a schematic structural diagram of an upper plate body according to Embodiment 1 of the present invention;

[0029] Figure 3 is a top view of the diverter plate of Example 1 of the present invention;

[0030] Figure 4 yes Figure 3 Sectional view along line AA;

[0031] Figure 5 is a partial cross-sectional schematic diagram of a lower plate body and an upper plate body of Example 1 of the present invention;

[0032] Figure 6 is a partial structural schematic diagram of a mold system according to Embodiment 1 of the present invention;

[0033] Figure 7 is a partial cross-sectional schematic diagram of a splitter plate according to Embodiment 2 of the present invention;

[0034] Figure 8 is a partial schematic cross-sectional view of a lower plate body and an upper plate body of Embodiment 2 of the present invention;

[0035] Fig. 9 is a partial cross-sectional schematic diagram of a splitter plate according to Embodiment 3 of the present invention;

[0036] Fig.10 is a partial schematic cross-sectional view of a lower plate body and an upper plate body of Embodiment 3 of the present invention;

[0037] Fig.11 is a partial cross-sectional schematic diagram of a splitter plate according to Embodiment 4 of the present invention;

[0038] Fig.12 It is a partial schematic cross-sectional view of the lower plate body and the upper plate body of Example 4 of the present invention. DETAILED DESCRIPTION

[0039] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0040] Example 1

[0041] Ginseng Figures 1 to 6 As shown, this embodiment provides a split manifold and an application example of the manifold in a mold system, that is, a mold system having the manifold is also provided. The manifold not only has the advantages of easy glue cleaning and maintenance of the flow channel of the existing manifold, but also solves the problem of loose glue sealing and easy leakage of the flow channel of the existing manifold.

[0042] Specifically, refer to Figures 1 to 5 The diverter plate includes an upper plate body 120 , a lower plate body 110 and a flow channel 130 .

[0043] The lower plate body 110 is stacked below the upper plate body 120 , and a top surface 111 of the lower plate body 110 is vertically opposite to a bottom surface 121 of the upper plate body 120 .

[0044] The bottom surface 121 of the upper plate body 120 is provided with a protrusion 132 , and the top surface 111 of the lower plate body 110 is provided with a groove 131 , and the protrusion 132 is embedded in the groove 131 .

[0045] The flow channel 130 is located between the upper plate 120 and the lower plate 110, and is surrounded by the groove 131 and the protrusion 132, that is, the groove wall of the groove 131 defines part of the boundary of the flow channel 130, and the wall surface of the protrusion 132 defines the remaining boundary of the flow channel 130. In addition, in the cross section of the flow channel 130, the protrusion 132 blocks the upper opening of the groove 131. In this way, the split-type diverter plate forms the flow channel 130 between the protrusion 132 and the groove 131 by setting the protrusion 132 and the groove 131. On the one hand, it ensures that the flow channel 130 can be cleaned and maintained when the upper plate body 120 and the lower plate body 110 are separated. On the other hand, by embedding the protrusion 132 into the groove 131 and sealing the groove 131 with the protrusion 132, this concave-convex clamp design, rather than the traditional flat sealing, reduces the requirements for the flatness of the top surface 111 of the lower plate body 110 and the bottom surface 121 of the upper plate body 120 caused by the sealing demand of the flow channel 130, and ensures that the flow channel 130 is tightly sealed without leakage.

[0046] Furthermore, as mentioned above, in the preferred embodiment, the protrusion 132 is formed integrally on the bottom surface 121 of the upper plate body 120 in a downwardly protruding manner, and correspondingly, the groove 131 is formed integrally on the top surface 111 of the lower plate body 110 in a downwardly concave manner, so that the flow channel 130 is located in the lower plate body 110 and is lower than the top surface 111, and the rubber material is more likely to be pressed downward against the groove wall of the groove 131 under the action of gravity, and it is easier to avoid the problem of leakage caused by the poor sealing of the flow channel 130. Of course, in a variant embodiment, the positions of the protrusion 132 and the groove 131 can also be interchanged, the protrusion 132 is formed integrally on the top surface 111 of the lower plate body 110 in a upwardly protruding manner, and the groove 131 is formed integrally on the bottom surface 121 of the upper plate body 120 in a upwardly concave manner.

[0047] It can be understood that both the protrusion 132 and the groove 131 extend along the flow channel 130. The protrusion 132 extends in a long strip on the bottom surface 121 of the upper plate body 120, and the corresponding groove 131 also extends in a long strip on the top surface 111 of the lower plate body 110, and the extension trajectories of the two are adapted.

[0048] Furthermore, in the cross section of the flow channel 130, the protrusion 132 and the groove 131 are interference fit, that is, the protrusion 132 is interference fit with the groove 131 in the horizontal direction, thereby plugging the upper opening of the groove 131 and enhancing the blocking effect.

[0049] Further, Figure 4 and Figure 5In the cross section of the flow channel 130 , the groove 131 has a semicircular bottom wall 1311 and a side wall 1312 arranged opposite to the opening.

[0050] There are two side walls 1312, both of which are connected to the bottom wall 1311 and extend upward from two ends 1311a and 1311b of the bottom wall 1311 in a tangential direction. In this embodiment, the two side walls 1312 are arranged parallel to each other and extend up and down. In this way, the shear force of the rubber in the flow channel 230 can be reduced by the semicircular bottom wall 2311 and the side walls 2312 connected tangentially thereto.

[0051] In this embodiment, the groove 131 also has an inclined wall 1313 connecting the top surface 111 of the lower plate body 110 and the side wall 1312, and the top end of the inclined wall 1313 intersects with the top surface 111 of the lower plate body 110 through a transition radius extending outward from bottom to top, that is, the inclined wall 1313 extends obliquely from the top end of the side wall 1312, and the top end of the inclined wall 1313 is connected to the top surface 111 through the transition radius.

[0052] Correspondingly, the protrusion 132 is roughly in a trapezoidal structure, which fits with the inclined wall 1313, and the width of the protrusion 132 decreases from top to bottom. Specifically, the lower end of the protrusion 132 is in a trapezoidal shape with a decreasing width from top to bottom, and the protrusion 132 is provided with a rounded transition surface 1320 at the junction with the bottom surface 121 of the upper plate body 120, and the trapezoid fits with the inclined wall 1313. The rounded transition surface 1320 and the transition fillet at the top of the inclined wall 1313 can ensure the tightness of the protrusion 132 and the inclined wall 1313, increase the path length and curvature of the rubber material in the flow channel 130 leaking from the gap between the protrusion 132 and the groove 131 to the top surface 111 and the bottom surface 121, so as to reduce the risk of leakage of the flow channel 130.

[0053] Furthermore, there is a gap of about 0.05 mm between the top surface 111 of the lower plate body 110 and the bottom surface 121 of the upper plate body 120, which can ensure that the protrusion 132 and the groove 131 are embedded in the upper plate body 120 and the lower plate body 110 first when the upper plate body 120 and the lower plate body 110 are assembled. That is, when the protrusion 132 seals the groove 131, there is still room for further movement between the top surface 111 of the lower plate body 110 and the bottom surface 121 of the upper plate body 120 to increase the tightness of the seal.

[0054] Further, Figure 3 and Figure 4 The upper plate 120 has a through hole 142, and the lower plate 110 has a locking hole 141 that matches the through hole 142; Figure 6The splitter plate further includes a fastener 143, one end of which passes through the through hole 142 and is fastened to the locking hole 141 to limit the upper plate 120 and the lower plate 110 from moving away from each other in the vertical direction. Thus, on the basis of the concave-convex inlaid sealing structure, the fastener 143 is provided to assist in locking the upper plate 120 and the lower plate 110, so as to prevent the protrusion 132 and the groove 131 from moving away from each other in the vertical direction due to the expansion of the injection pressure, thereby preventing the glue leakage phenomenon.

[0055] Of course, in a modified embodiment, the positions of the through hole 142 and the locking hole 141 may be interchanged.

[0056] In this embodiment, the locking hole 141 is configured as a threaded hole, and the fastener 143 is configured as a screw matching the threaded hole.

[0057] Further, Figure 6 The mold system provided in this embodiment includes a mold 160 and a diverter plate, and the diverter plate is fastened to the mold 160 .

[0058] Specifically, combined Figures 1 to 6 The manifold has a fastening hole 15 that passes through the lower plate 110 and the upper plate 120 from top to bottom, the mold 160 has a matching hole 152 that matches the fastening hole 15, and the mold system also includes a locking screw 153, the lower end of the locking screw 153 passes through the fastening hole 15 and is screwed into the matching hole 152. In this way, on the one hand, the mold 160 and the manifold can be fastened together, and on the other hand, the upper plate 120 and the lower plate 110 can be further pressed up and down to avoid the gap caused by the expansion of the injection pressure, thereby avoiding glue leakage.

[0059] In addition, the top surface 122 of the upper plate body 120 and the mold 160, as well as the bottom surface 112 of the lower plate body 110 and the mold 160 are connected by a pad 170, so that the upper plate body 120 and the lower plate body 110 are further pressed up and down by the pad 170 to prevent the protrusion 132 and the groove 131 from moving away from each other up and down due to the expansion of the injection pressure and forming a gap for glue leakage, thereby preventing glue leakage.

[0060] In summary, the present embodiment has the following beneficial effects: by providing the protrusion 132 and the groove 131, the flow channel 130 is formed between the protrusion 132 and the groove 131. On the one hand, it is ensured that the flow channel 130 can be cleaned and maintained when the upper plate 120 and the lower plate 110 are separated; on the other hand, this concave-convex clamp design, rather than the traditional flat sealing, reduces the requirements for the flatness of the top surface 111 of the lower plate 110 and the bottom surface 121 of the upper plate 120 due to the sealing demand of the flow channel 130, and ensures that the flow channel 130 is tightly sealed without leakage; on the other hand, by optimizing the configuration of the protrusion 132 and the groove 131, and providing components such as the fastener 143, the locking screw 153, and the gasket 170, the upper plate 120 and the lower plate 110 are further pressed up and down to avoid the protrusion 132 and the groove 131 moving away from each other up and down due to the expansion of the injection pressure to form a gap for glue leakage, thereby avoiding glue leakage.

[0061] Example 2

[0062] Ginseng Figure 7 and Figure 8 The embodiment shown also provides a split manifold and a mold system having the manifold. Similar to the first embodiment, the manifold not only has the advantages of easy glue cleaning and maintenance of the flow channel of the existing manifold, but also solves the problem of loose glue sealing and easy leakage of the flow channel of the existing manifold.

[0063] The diverter plate of this embodiment includes an upper plate body 220, a lower plate body 210 and a flow channel 230. The flow channel 230 is located between the upper plate body 220 and the lower plate body 210, and is surrounded by a groove 231 recessed on the top surface 211 of the lower plate body 210 and a protrusion 232 protruding on the bottom surface 221 of the upper plate body 220. Moreover, in the cross section of the flow channel 230, the protrusion 232 blocks the upper opening of the groove 231. Similar to Example 1, this embodiment not only ensures the convenience of glue cleaning and maintenance of the flow channel 230, but also adopts a concave-convex inlay design, a non-traditional planar glue sealing, which reduces the requirements for the flatness of the top surface 211 of the lower plate body 210 and the bottom surface 221 of the upper plate body 220 due to the glue sealing requirements of the flow channel 230, and ensures that the glue sealing of the flow channel 230 is tight and will not leak.

[0064] The only difference between this embodiment and Embodiment 1 is the specific configuration of the groove 231 and the protrusion 232 in the cross section of the flow channel 230. Only this difference is introduced below, and other structures that are the same as those in Embodiment 1 and the corresponding beneficial effects are not repeated here.

[0065] Specifically, in this embodiment, in the cross section of the flow channel 230 , the groove 231 has a semicircular bottom wall 2311 and a side wall 2312 which are arranged opposite to the opening.

[0066] There are two side walls 2312, both of which are connected to the bottom wall 2311 and extend from two ends 2311a and 2311b of the bottom wall 2311 in a tangential direction, respectively. The two side walls 2312 are arranged parallel to each other and extend up and down. In this way, the shear force of the rubber in the flow channel 230 can be reduced by the semicircular bottom wall 2311 and the side walls 2312 connected tangentially thereto.

[0067] The upper end of the side wall 2312 intersects with the top surface 211 of the lower plate body 210 through a transition angle 2313 extending outward from bottom to top, that is, the upper end of the side wall 2312 is slightly lower than the top surface 211, and the transition angle 2313 is located at the intersection of the top surface 211 of the lower plate body 210 and the side wall 2312, which can be specifically set to an inner arc, an outer arc or a straight line.

[0068] The side wall 2312 in this embodiment is greater in height than the side wall 1312 in the first embodiment and is relatively closer to the top surface 211 .

[0069] Unlike the first embodiment, the protrusion 232 of the present embodiment is arranged in an arcuate shape and its radius is slightly greater than or equal to the radius of the bottom wall 2311, and the joint between the protrusion 232 and the bottom surface 221 of the upper plate 220 is arranged as a rounded transition surface 2320. Therefore, the arcuate protrusion 232 with a larger or equal radius is embedded in the groove 231, so that the protrusion 232 can effectively block the opening above the protrusion 232, and prevent the rubber material from leaking outward from the gap along the inner edge of the flow channel 230.

[0070] Example 3

[0071] Ginseng Fig. 9 and Fig.10 The embodiment shown also provides a split manifold and a mold system having the manifold. Similar to the first embodiment, the manifold not only has the advantages of easy glue cleaning and maintenance of the flow channel of the existing manifold, but also solves the problem of loose glue sealing and easy leakage of the flow channel of the existing manifold.

[0072] The diverter plate of this embodiment includes an upper plate body 320, a lower plate body 310 and a flow channel 330. The flow channel 330 is located between the upper plate body 320 and the lower plate body 310, and is surrounded by a groove 331 recessed on the top surface 311 of the lower plate body 310 and a protrusion 332 protruding on the bottom surface 321 of the upper plate body 320. Moreover, in the cross section of the flow channel 330, the protrusion 332 blocks the upper opening of the groove 331. Similar to Example 1, this embodiment not only ensures the convenience of glue cleaning and maintenance of the flow channel 330, but also adopts a concave-convex inlay design, a non-traditional planar glue sealing, which reduces the requirements for the flatness of the top surface 311 of the lower plate body 310 and the bottom surface 321 of the upper plate body 320 due to the glue sealing requirements of the flow channel 330, and ensures that the glue sealing of the flow channel 330 is tight and will not leak.

[0073] The only difference between this embodiment and Embodiment 1 is the specific configuration of the groove 331 and the protrusion 332 in the cross section of the flow channel 330. Only this difference is introduced below, and other structures that are the same as those in Embodiment 1 and the corresponding beneficial effects are not repeated here.

[0074] Specifically, in this embodiment, in the cross section of the flow channel 330 , the groove 331 has a semicircular bottom wall 3311 and a side wall 3312 which are arranged opposite to the opening.

[0075] There are two side walls 3312, both of which are connected to the bottom wall 3311 and extend from two ends 3311a and 3311b of the bottom wall 3311 in a tangential direction, respectively. The two side walls 3312 are arranged parallel to each other and extend up and down. In this way, the shear force of the rubber in the flow channel 330 can be reduced by the semicircular bottom wall 3311 and the side walls 3312 connected tangentially thereto.

[0076] The upper end of the side wall 3312 intersects with the top surface 311 of the lower plate body 310 through a transition angle 3313 extending outward from bottom to top, that is, the upper end of the side wall 3312 is slightly lower than the top surface 311, and the transition angle 3313 is located at the intersection of the top surface 311 of the lower plate body 310 and the side wall 3312, which can be specifically set to an inner arc, an outer arc or a straight line.

[0077] The side wall 3312 in this embodiment is greater in height than the side wall 1312 in the first embodiment and is relatively closer to the top surface 311 . The configuration of the groove 331 in this embodiment is substantially the same as that of the groove 231 in the second embodiment.

[0078] Unlike the first embodiment, the protrusion 332 of the present embodiment is configured in a rounded rectangular shape, with its top end configured as a rounded transition surface 3320, and its vertical walls extending up and down are in contact with at least the upper portion of the side wall 3312. Thus, by the protrusion 332 being in contact with the peripheral wall 3313 and even the side wall 3312, the path length and curvature of the rubber material in the flow channel 330 when overflowing can be increased, thereby further preventing leakage.

[0079] Example 4

[0080] Ginseng Fig.11 and Fig.12 The embodiment shown in the figure provides a split manifold and a mold system having the manifold. The manifold not only has the advantages of easy glue cleaning and maintenance of the flow channel of the existing manifold, but also solves the problem of loose glue sealing and easy leakage of the flow channel of the existing manifold.

[0081] Specifically, the diverter plate includes an upper plate body 420 , a lower plate body 410 and a flow channel 430 .

[0082] The lower plate 410 is stacked and attached to the lower side of the upper plate 420 , and the top surface 411 of the lower plate 410 is attached to the bottom surface 421 of the upper plate 420 .

[0083] The bottom surface 421 of the upper plate body 420 has a first flow channel groove 432 which is concave upwards, and correspondingly, the top surface 411 of the lower plate body 410 has a second flow channel groove 431 which is concave downwards, and the first flow channel groove 432 and the second flow channel groove 431 cooperate with each other in a mirror-symmetrical manner.

[0084] The flow channel 430 is located between the upper plate body 420 and the lower plate body 410, and is surrounded by the first flow channel groove 432 and the second flow channel groove 431, that is, the groove wall of the first flow channel groove 432 defines part of the boundary of the flow channel 430, and the groove wall of the second flow channel groove 431 defines the remaining boundary of the flow channel 430. In this way, the flow channel 430 of the split manifold is surrounded by the first flow channel groove 432 and the second flow channel groove 431, which facilitates the cleaning and maintenance of the flow channel 430.

[0085] Furthermore, in this embodiment, the diverter plate further includes a concave-convex structure.

[0086] The concave-convex structure includes a protrusion 482 protruding downward from the bottom surface 421 of the upper plate body 420, and a groove 481 is provided on the top surface 411 of the lower plate body 410, and the protrusion 482 is protruding and accommodated in the groove 481, that is, the protrusion 482 is embedded in the groove 481. In this way, the split-type manifold is formed by the concave-convex clamp design formed by the protrusion 482 and the groove 481, rather than the traditional flat sealing, which reduces the requirements for the flatness of the top surface 411 of the lower plate body 410 and the bottom surface 421 of the upper plate body 420 caused by the sealing of the flow channel 430, and ensures that the flow channel 430 is tightly sealed without leakage.

[0087] Of course, in a variant embodiment, the positions of the protrusion 482 and the groove 481 may be interchanged, with the protrusion 482 being formed integrally on the top surface 411 of the lower plate 410 and the groove 481 being formed integrally on the bottom surface 421 of the upper plate 420 and recessed upward.

[0088] Preferably, the concave-convex structures are provided on both horizontal sides of the flow channel 430 , and each of the concave-convex structures is arranged to extend in a long strip along the flow channel 430 , that is, consistent with the direction of the flow channel 430 .

[0089] In addition, in the cross section, the protrusion 482 and the groove 481 can be set to any compatible configuration, such as a rectangle, an arch, a cone, a trapezoid as shown in the figure, etc.

[0090] Furthermore, in this embodiment, the upper plate 420 and the lower plate 410 can be fastened together by the through hole 142, the locking hole 141, the fastener 143 and other structures as described in Example 1, so as to prevent the leakage gap from occurring under the expansion of the injection pressure; in addition, in this embodiment, the diverter plate can be applied to the mold system by the mold 160, the locking screw 153, the pad 170 and other structures as described in Example 1, so as to prevent the leakage. These details will not be described in detail.

[0091] The detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. All equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A split type manifold, characterized in that: It includes an upper plate body, a lower plate body and a flow channel, one of the bottom surface of the upper plate body and the top surface of the lower plate body is provided with a protrusion, and the other of the bottom surface of the upper plate body and the top surface of the lower plate body is provided with a groove, the protrusion is embedded in the groove, the flow channel is located between the upper plate body and the lower plate body and is surrounded by the groove and the protrusion, and, in the cross section of the flow channel, the protrusion blocks the opening of the groove.

2. The split type manifold according to claim 1, characterized in that: The protrusion and the groove both extend along the flow channel.

3. The split type manifold according to claim 1, characterized in that: In the cross section of the flow channel, the protrusion and the groove are interference fit.

4. The split type manifold according to claim 1, characterized in that: The protrusion is formed integrally on the bottom surface of the upper plate body so as to protrude downward, and the groove is formed integrally on the top surface of the lower plate body so as to be recessed downward.

5. The split type manifold according to claim 4, characterized in that: In the cross section of the flow channel, the groove has a semicircular bottom wall arranged opposite to the opening, and two side walls extending up and down along the tangent direction at both ends of the bottom wall; Wherein: the upper end of the side wall intersects with the top surface of the lower plate body through a transition angle extending outward from bottom to top, and the protrusion is arranged in an arch shape with a radius greater than or equal to the radius of the bottom wall, or is arranged in a rectangular shape that fits at least the upper part of the side wall; or, The groove also has an inclined wall connecting the top surface of the lower plate body and the side wall, the top of the inclined wall intersects with the top surface of the lower plate body through a transition angle extending outward from bottom to top, the protrusion fits with the inclined wall, and the width of the protrusion decreases from top to bottom.

6. The split type manifold according to claim 1, characterized in that: One of the lower plate body and the upper plate body has a through hole, and the other of the two has a locking hole adapted to the through hole; The diverter plate further comprises a fastener, one end of which passes through the through hole and is fastened and fitted in the locking hole to limit the upper plate body and the lower plate body from moving away from each other in the up-down direction.

7. The split type manifold according to claim 6, characterized in that: The locking hole is configured as a threaded hole, and the fastener is configured as a screw matching the threaded hole.

8. A mold system, comprising a mold, characterized in that: It also includes the split manifold according to any one of claims 1 to 7, wherein the manifold is fixedly connected to the mold.

9. The mold system according to claim 8, characterized in that: The manifold has a fastening hole that passes through the lower plate body and the upper plate body from top to bottom, the mold has a matching hole that matches the fastening hole, and the mold system includes a locking screw, one end of which passes through the fastening hole and is screwed into the matching hole; The top surface of the upper plate body and the mold, as well as the bottom surface of the lower plate body and the mold, are both abutted and connected via pads.

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