Ejection device and mold

Abstract

The utility model discloses an ejection device and mould relates to mould technical field, the ejection device includes plate structure and ejection structure, the plate structure includes the ejection plate and the bottom plate that sets up in proper order along the vertical direction, the ejection plate can move along the vertical direction relative to the bottom plate, on the ejection plate is formed two liquid flow channel, one end of each of the two liquid passing flow channels is used for being connected with a pipeline joint so as to lead in and lead out cooling liquid respectively; the ejection structure comprises an ejection piece detachably installed on the ejection plate, a cooling flow channel is formed in the ejection piece and provided with an inlet end and an outlet end, and the inlet end and the outlet end communicate with the two liquid passing flow channels correspondingly, so that the heat exchange and cooling effects are achieved. The pipeline joint can be directly installed on the ejection plate, and sufficient moving space is provided in the ejection process. The ejection piece can be independently disassembled and assembled, connection and matching of the ejection plate and the pipeline connector do not need to be changed, the disassembly efficiency is remarkably improved through the design, and the effect of quick disassembly and assembly is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field, especially top out device and mould. BACKGROUND

[0002] Because of the unique structure of the mesh cover product, a large amount of glue is usually collected in the middle during die design, so as to ensure the glue supply of the cavity, therefore, during the design of the ejection structure, the ejector rod in the middle is usually matched with a cooling water channel, in the existing structure, a connector is installed on the outside of the ejector rod in the middle to connect the water pipe, on the one hand, the layout mode of the water pipe on the ejector plate needs to be considered, both the other ejector rods on the ejector plate and the position change of the water pipe during the lifting process of the ejector plate need to be considered, which is not conducive to the protection of the water pipe and affects the service life, on the other hand, when the ejector rod in the middle needs to be disassembled, the needle plate also needs to be disassembled, so as to meet the disassembly requirements of the connector removal and the water pipe removal, and the maintenance cost is high. SUMMARY

[0003] The utility model discloses a kind of top out device and mould, can realize the quick disassembly of top out piece with cooling water channel, facilitate later maintenance.

[0004] To achieve the above object, the utility model provides a kind of top out device, for the ejection of mesh cover product, comprising:

[0005] Plate structure, including top out plate and bottom plate sequentially arranged along up-down direction, the top out plate can be moved along up-down direction relative to the bottom plate, two liquid flow passages are formed on the top out plate, one end of two liquid flow passages is used to connect pipe joint to introduce and export cooling liquid respectively;And,

[0006] Ejection structure, including top out piece detachably installed to the top out plate, cooling flow channel is formed in the inside of the top out piece, the cooling flow channel has import end and export end that are through to the surface of top out piece, the import end and the export end are communicated with two liquid flow passages respectively.

[0007] In an embodiment, one end of at least one liquid flow passage is arranged through the side surface of the top out plate.

[0008] In an embodiment, the middle of the top out plate is provided with mounting groove;

[0009] Two liquid flow passages are arranged in communication with the mounting groove;

[0010] The lower end of the top out piece is arranged in the mounting groove, when the lower end of the top out piece is attached to the inner wall surface of the mounting groove, the import end and the export end are communicated with corresponding liquid flow passages.

[0011] In an embodiment, the inlet end and / or the outlet end is located at a lower end surface of the ejector;

[0012] The corresponding liquid passage comprises a first liquid inlet section and a second liquid inlet section, the first liquid inlet section extends in a horizontal direction and penetrates a side surface of the ejector plate, the first liquid inlet section is located below the mounting groove, the second liquid inlet section extends in a vertical direction and penetrates a bottom wall surface of the mounting groove, and the second liquid inlet section is used to be connected with the inlet end.

[0013] In an embodiment, two liquid passages are arranged in a straight line and extend in opposite directions, or two liquid passages are arranged side by side and extend in the same direction.

[0014] In an embodiment, the ejector plate comprises a first panel and a second panel stacked in a vertical direction, a first recess is arranged in a middle part of an upper end surface of the second panel, the first panel is provided with a avoiding hole corresponding to the first recess, and the avoiding hole and the first recess jointly define a mounting groove.

[0015] A lower end of the ejector is arranged in the mounting groove.

[0016] The liquid passage is arranged on the first panel and / or the second panel.

[0017] In an embodiment, the liquid passage comprises:

[0018] A first passage section is arranged on the first panel, one end of the first passage section penetrates a side surface of the first panel;

[0019] A second passage section is arranged on the second panel, and the second passage section is connected with the first recess;

[0020] A third passage section is connected with the first passage section and the second passage section, and the third passage section is arranged between the first panel and the second panel.

[0021] In an embodiment, a side surface of the first panel and a side surface of the second panel towards each other are both provided with a second recess, and the two second recesses jointly form the third passage section.

[0022] A first through hole is arranged on a side surface of the first panel, the first through hole is connected with a side wall of the corresponding second recess, and the first through hole forms the first passage section;

[0023] A second through hole is arranged on a side surface of the second panel, the second through hole is connected with the corresponding second recess and the first recess, one end of the second through hole away from the first recess is provided with a plug, and the plug, the second through hole jointly define the second passage section.

[0024] In an embodiment, the ejector comprises:

[0025] a main body having two communication holes formed therethrough in the up-down direction; and

[0026] a push block provided at the upper end of the main body, the lower end surface of the push block being concavely provided with a flow channel groove, the flow channel groove being in communication with the two communication holes to jointly form the cooling flow channel, the end portions of the two communication holes opposite to the push block forming the inlet end and the outlet end.

[0027] The utility model also provides a kind of mould for forming mesh cover product, comprising:

[0028] lower die seat;

[0029] ejecting device, the ejecting device comprises:

[0030] plate structure, including the ejector plate and bottom plate sequentially arranged along the up-down direction, the ejector plate can be moved along the up-down direction relative to the bottom plate, the ejector plate is formed with two liquid passageways, one end of two liquid passageways is used to connect pipe joint to respectively introduce and export cooling liquid;The plate structure of the ejecting device is located below the lower die seat;

[0031] ejecting structure, including the ejector piece that can be detachably installed to the ejector plate, the cooling flow channel is formed in the inside of the ejector piece, the cooling flow channel has inlet end and outlet end, the inlet end and the outlet end are in communication with two liquid passageways respectively;

[0032] two template blocks, can be detachably installed to the bottom plate, and located in the ejector plate along horizontal direction opposite two sides, the upper end surface of each template block is concavely provided with through slot, to be provided with the pipe joint that is communicated with the liquid passageway.

[0033] The utility model discloses a technical scheme, set up cooling runner on the ejection, can circulate cooling liquid after being connected with external pipeline, thereby play the effect of heat exchange cooling. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, without creative labor, according to the structure shown in these drawings, other drawings can also be obtained.

[0035] Figure 1 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure.

[0036] Figure 2 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure. Figure 1 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure.

[0037] Figure 3 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure. Figure 1 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure.

[0038] Figure 4 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure. Figure 1 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure.

[0039] Figure 5 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure. Figure 4 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure.

[0040] Figure 6 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure. Figure 1 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure.

[0041] Figure 7 The structure schematic diagram of the ejection device one embodiment provided by the utility model is shown in the figure.Figure 6 A cross-sectional view of the ejector;

[0042] Figure 8 For Figure 6 A cross-sectional view of the push block along A-A.

[0043] BRIEF DESCRIPTION OF DRAWINGS

[0044] 100, ejector; 1, base plate; 2, ejector plate; 21, first panel; 211, avoiding hole; 212, first via hole; 22, second panel; 221, first recess; 222, second via hole; 23, mounting groove; 24, second recess; 201, first liquid inlet section; 202, second liquid inlet section; 210, first flow channel section; 230, third flow channel section; 3, ejector; 30, cooling flow channel; 31, main body; 311, communication hole; 32, push block; 322, flow channel groove; 200, pipe joint; 300, lower mold base; 400, mold plate block; 410, through groove.

[0045] The realization, functional features and advantages of the utility model will be further described in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0047] It should be noted that if the directionality indication is involved in the embodiments of the utility model, the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directionality indication also changes accordingly.

[0048] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the description purpose, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is also not within the protection scope required by the utility model.

[0049] Due to the unique structural characteristics of the mesh cover product, a large amount of glue is usually concentrated in the middle of the mold during the mold design process to ensure sufficient glue supply in the cavity. Therefore, the middle ejector pin is usually equipped with a cooling water channel in the design of the ejection system to ensure temperature control of the mold during the injection molding process. In the existing structural design, a joint is usually installed on the outside of the ejector pin to connect the water pipe. The purpose of this design is to ensure the circulation of cooling water.

[0050] However, this design has some shortcomings.

[0051] Firstly, when arranging the water pipe on the ejector plate, the avoidance problem between the water pipe and other ejector pins needs to be considered to ensure that the water pipe will not be interfered during the movement of the ejector plate. At the same time, the change of the position of the water pipe during the lifting of the ejector plate needs to be considered to ensure the stability and safety of the water pipe.

[0052] Secondly, if the middle ejector pin needs to be disassembled due to water leakage, cracking, etc., the needle plate and the joint need to be disassembled together, which is complicated and difficult for products with many ejector pins. This design undoubtedly increases the difficulty and cost of maintenance, especially in the case of frequent replacement of ejector pins during production. This design may have a certain impact on production efficiency.

[0053] Therefore, for the mold design of mesh cover products, the design of the ejection system, the arrangement of the cooling system, and the convenience of maintenance need to be considered comprehensively to realize the efficient and stable operation of the mold.

[0054] Please refer to Figures 1 to 2 , the ejector device 100 includes a plate structure and an ejector structure, the plate structure includes an ejector plate 2 and a bottom plate 1 arranged in sequence in the up-down direction, the ejector plate 2 can move in the up-down direction relative to the bottom plate 1, and the ejector plate 2 is formed with two liquid passing channels (combined with Figure 3 and Figure 5 ), one end of each of the two liquid passing channels is used to connect a pipe joint 200 to respectively introduce and discharge cooling liquid; the ejector structure includes an ejector piece 3 detachably installed to the ejector plate 2, the inside of the ejector piece 3 is formed with a cooling channel 30 (combined with Figure 7 ), the cooling channel 30 has an inlet end and an outlet end penetrating to the outer surface of the ejector piece 3, and the inlet end and the outlet end are respectively communicated with the two liquid passing channels.

[0055] The utility model discloses a technical scheme, set up cooling runner 30 on the ejection 3, after being connected with external pipeline, can carry out the circulation of cooling liquid, thereby play the effect of heat exchange cooling.

[0056] It should be understood that the plurality of ejector rods are also arranged on the ejection plate 2 and are used for corresponding to the rib portions of the mesh cover product to jointly drive the mesh cover product to be demolded together with the ejection piece 3.

[0057] When the mold is set as a cavity mold, the ejection piece 3 can be correspondingly arranged in plurality, each ejection piece 3 corresponds to a mesh cover product, and the flow paths of the two liquid passing runners pass through the plurality of ejection pieces 3, so that a set of cooling circulating water paths can be compatible with the structure of the plurality of ejection pieces 3.

[0058] Based on the setting position and the setting space of the ejection plate 2 in the mold structure, the port of the liquid passing runner can be arranged on the lower end surface of the ejection plate 2, at this time, the pipe joint 200 is connected to the lower end surface of the ejection plate 2, but at this time, the avoidance cooperation with the bottom plate 1 needs to be considered.

[0059] In some embodiments, one end of at least one liquid flow channel is arranged through the side surface of the ejection plate 2. Thus, the pipe joint 200 is migrated to the side of the ejection plate 2, and the position of the pipe joint 200 is migrated to the side area of the ejection plate 2. This is because the net cover product involves more ejector pins for ejection, and it is more difficult to connect the water pipe from the plate surface. The pipe joint 200 is connected to the side, which not only has more space layout, avoids the difficulty of installation and maintenance due to the narrow space, but also because the number of matching parts on the side of the ejection plate 2 is relatively reduced, the structure is more simple, so in the actual operation process, the setting and adjustment of these pipe joints 200 also become easier and more convenient.

[0060] In the present embodiment, the end of each liquid flow channel away from the ejector pin 3 is arranged through the side wall of the ejection plate 2. Thus, the liquid inlet pipe joint 200 and the liquid outlet pipe joint 200 are installed on the side of the ejection plate 2.

[0061] It should be noted that the extension direction of the two liquid flow channels can be the same or opposite, that is, the two pipe joints 200 can correspond to the same side of the ejection plate 2, or can be arranged on the two adjacent sides of the ejection plate 2, or can be arranged on the two opposite sides of the ejection plate 2 in the horizontal direction. In some embodiments, the two liquid flow channels are arranged in a straight line, and the extension directions are opposite; when the end of the liquid flow channel penetrates the ejection plate 2, the ends of the two liquid flow channels close to each other are matched with the ejector pin 3, and the ends away from each other correspond to the two opposite sides of the ejection plate 2. In some embodiments, the two liquid flow channels are arranged side by side, and the extension directions are the same.

[0062] The present utility model does not limit the extension direction and flow path of the two liquid flow channels. The liquid flow channel can be straight, inclined or curved.

[0063] The communication mode between the inlet end and the outlet end of the cooling flow channel 30 and the corresponding liquid flow channel is realized by end face abutting. In order to facilitate the installation and positioning of the ejector pin 3, the middle part of the ejection plate 2 is provided with a mounting groove 23; both liquid flow channels are communicated with the side wall of the mounting groove 23; the lower end of the ejector pin 3 is arranged in the mounting groove 23, and when the lower end of the ejector pin 3 abuts with the inner wall surface of the mounting groove 23, the inlet end and the outlet end are communicated with the corresponding liquid flow channel.

[0064] In some embodiments, the side surface of the lower end of the ejector pin 3 is provided with an inlet end and / or an outlet end, and the two liquid flow channels correspond to the side wall of the mounting groove 23. When the ejector pin 3 is inserted into the mounting groove 23, the communication of the flow path is realized by the lateral abutting of the ejector pin 3 and the mounting groove 23. In order to limit the position of the ejector pin 3 in the mounting groove 23, the machining precision can be strictly controlled, or an elastic limiting block can be added in the mounting groove 23.

[0065] In some embodiments, the lower end surface of the ejector 3 is provided with an inlet end and / or an outlet end, and two liquid flow channels are correspondingly connected to the bottom wall surface of the installation groove 23. When the ejector 3 is inserted into the installation groove 23, the flow channels are connected by the abutting of the ejector 3 and the installation groove 23 in the up-down direction. In this embodiment, a screwing member is arranged on the lower side of the ejecting plate 2 and cooperates with the lower end of the ejector 3. By controlling the screwing member, the end surface abutting effect of the ejecting plate 2 and the ejector 3 can be controlled.

[0066] In this embodiment, the inlet end and the outlet end are both located on the lower end surface of the ejector 3, and the inlet end and the outlet end are spaced apart.

[0067] Each liquid flow channel is arranged in an L shape. The liquid flow channel includes a first liquid inlet section 201 and a second liquid inlet section 202. The first liquid inlet section 201 extends in the horizontal direction and penetrates through the side surface of the ejecting plate 2, so as to be connected to the pipe joint 200. The first liquid inlet section 201 is located below the installation groove 23, thereby providing a certain flow space for the second liquid inlet section 202. The second liquid inlet section 202 extends in the up-down direction and penetrates through the bottom wall surface of the installation groove 23. After the ejector 3 is inserted into the installation groove 23, the second liquid inlet section 202 is butted against the inlet end.

[0068] In order to ensure the abutting effect of the ejector 3 and the installation groove 23, a sealing ring can be arranged between the ejector 3 and the installation groove 23. The sealing ring is arranged at the positions corresponding to the inlet end and the outlet end. An annular groove is arranged on the end surface of the installation groove 23 and the ejector 3, for accommodating the sealing ring.

[0069] Further, please refer to Figure 3 and Figure 4 The ejecting plate 2 includes a first panel 21 and a second panel 22 arranged in the up-down direction. The first panel 21 and the second panel 22 are locked together, thereby facilitating the installation and fixation of the ejector rod. In this embodiment, the upper end surface of the second panel 22 is provided with a first recess 221, and the first panel 21 is provided with an avoiding hole 211 corresponding to the first recess 221. The avoiding hole 211 and the first recess 221 jointly define the installation groove 23. The lower end of the ejector 3 is arranged in the installation groove 23. In this way, the depth of the installation groove 23 can be maximized, thereby improving the guiding effect during the installation of the ejector 3 and the limiting effect after the installation.

[0070] Based on the above embodiment, the liquid flow channel can be arranged on the first panel 21 or the second panel 22.

[0071] In this embodiment, considering the setting position of the pipe joint 200, flow paths communicating with each other are arranged on the first panel 21 and the second panel 22 to jointly constitute a liquid-passing flow channel. Specifically, the liquid-passing flow channel includes a first flow channel segment 210, a second flow channel segment, and a third flow channel segment 230. The first flow channel segment 210 is arranged on the first panel 21, and one end of the first flow channel segment 210 penetrates the side surface of the first panel 21. The second flow channel segment is arranged on the second panel 22, and the second flow channel segment communicates with the first recess 221. The third flow channel segment 230 communicates with the first flow channel segment 210 and the second flow channel segment, and the third flow channel segment 230 is arranged between the first panel 21 and the second panel 22. That is, holes and groove structures are respectively machined on the first panel 21 and the second panel 22 to jointly constitute a liquid-passing flow channel.

[0072] Please refer to Figure 3 and Figure 5 The side surfaces of the first panel 21 and the second panel 22 facing each other are each provided with a second recess 24, and the two second recesses 24 jointly form the third flow channel segment 230. The side surface of the first panel 21 is provided with a first through hole 212, the first through hole 212 communicates with the side wall of the corresponding second recess 24, and the first through hole 212 forms the first flow channel segment 210. The side surface of the second panel 22 is provided with a second through hole 222, the second through hole 222 communicates with the corresponding second recess 24 and the first recess 221, and the end of the second through hole 222 away from the first recess 221 is provided with a plug, thereby defining a water position. The plug and the second through hole 222 jointly define the second flow channel segment. Such arrangement has a lower machining difficulty and is easier to implement. The end of the first through hole 212 is directly connected to the pipe joint 200, and the second through hole 222 penetrates the side surface of the second panel 22, which is convenient to machine. Since the pipe joint 200 is arranged at the first through hole 212, the end of the second through hole 222 can be plugged by the plug to prevent leakage of the second flow channel segment.

[0073] It should be noted that when the inlet end and the outlet end are both arranged at the bottom of the ejection member 3, the second flow channel segment should include a first liquid inlet segment 201 and a second liquid inlet segment 202. At this time, the plug and the second through hole 222 jointly define the first liquid inlet segment 201, and a matching groove communicating with the second through hole 222 is arranged at the bottom of the mounting groove 23, thereby forming the second liquid inlet segment 202.

[0074] Considering the sealing cooperation of the two second recesses 24, a sealing ring can be arranged between the first panel 21 and the second panel 22, and the sealing ring is annularly arranged outside the second recess 24, thereby ensuring the sealing property of the third flow channel segment 230 and avoiding leakage of the cooling liquid from between the first panel 21 and the second panel 22.

[0075] Please refer to Figures 6 to 8The ejection piece 3 comprises a main body 31 and a push block 32, the main body 31 is provided with two communication holes 311 penetrating in the up-down direction, the main body 31 is connected with the ejection plate 2, the push block 32 is arranged at the upper end of the main body 31, the lower end surface of the push block 32 is concavely provided with a flow channel groove 322, the upper end surface of the push block 32 is in contact with the corresponding position of the mesh cover product, the flow channel groove 322 is communicated with the two communication holes 311 to jointly form the cooling flow channel 30, and the end portions of the two communication holes 311 away from the push block 32 form the inlet end and the outlet end. Thus, the cooling liquid is guided to the push block 32, the cooling liquid enters the flow channel groove 322 from one of the communication holes 311 and then flows out from the other communication hole 311, so that the push block 32 and the rubber material are effectively cooled.

[0076] It should be noted that the specific shape of the flow channel groove 322 is not limited, which can be U-shaped, straight, labyrinth-shaped, serpentine-shaped, Z-shaped and the like.

[0077] In order to facilitate the machining of the flow channel groove 322, the push block 32 can also be realized by punching a hole on the side surface of the push block 32 and then plugging the hole.

[0078] The utility model also proposes a kind of mould, the mould includes ejection device 100, the specific structure of the ejection device 100 refers to above-mentioned embodiment, since mould adopts all technical solutions of above-mentioned all embodiments, at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaboration.

[0079] Specifically, please refer to Figures 1 to 2 The mould comprises a lower die seat 300 and two die template blocks 400, and the plate structure of the ejection device 100 is located below the lower die seat 300;The two die template blocks 400 are detachably installed to the bottom plate 1 and are located at the two sides of the ejection plate 2 in the horizontal direction, and the upper end surface of each die template block 400 is concavely provided with a through groove 410 for the pipe joint 200 communicated with the liquid flow channel to pass through. The die template block 400 plays a supporting and positioning role in the mould structure, is generally made of steel, the ejection plate 2 is provided with protrusions corresponding to the two sides of the two die template blocks 400, and the two die template blocks 400 are correspondingly provided with recesses, so as to form concave-convex limiting cooperation. In order to connect the pipe joint 200, a channel needs to be provided on the die template block 400, and the provision of the channel will affect the structural strength of the die template block 400, so as to reduce the depth of the through groove 410, and the inlet and outlet of the liquid flow channel are both provided on the first panel 21.

[0080] In the technical scheme of the utility model, the two liquid flow channels are symmetrically arranged. The inlet end, the outlet end and the two screw pieces of the ejection piece 3 are staggered on the horizontal plane.

[0081] Combined with Figures 1 to 2In the embodiment, the inside of the ejector 3 is inlaid with beryllium copper to meet the water conveying requirement of the cooling flow channel 30. The middle part of the ejector 3 corresponds to the top plate 2. A plurality of ejector rods are arranged around the side of the ejector 3. The ejector 3 is fixed on the bottom plate 1 by two screws. The cooling flow channel 30 of the ejector 3 is communicated with the liquid flow channel on the second panel 22 from the bottom of the ejector 3, and then is led out from the first panel 21. The lengthened water nozzle is used to lead to the outside of the mold plate block 400, so as to facilitate the connection of the water path. When the ejector 3 needs to be removed, the top plate 2 and the bottom plate 1 can not be disassembled. Only the two screws at the bottom of the ejector 3 are disassembled, and then the ejector 3 can be taken out from the upper side of the lower mold base 300. The scheme cancels the traditional mode of directly installing the joint on the ejector 3, and ingeniously communicates the water conveying to the top plate 2, and then leads the water conveying into the ejector 3 from the top plate 2. The assembly structure can realize the quick disassembly action of the ejector 3 of the mesh cover product. For the mold with a large number of ejector pins, the disassembly difficulty is greatly reduced, the subsequent maintenance of the mold is convenient, the cost is reduced, and the service life of the mold is improved.

[0082] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the utility model concept of the utility model, and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. An ejection device for ejecting mesh cover products, characterized in that, include: The plate structure includes a top plate and a bottom plate arranged sequentially in a vertical direction. The top plate is movable relative to the bottom plate in the vertical direction. Two fluid passages are formed on the top plate, each with one end for connecting a pipe joint to respectively introduce and discharge coolant. The ejector structure includes an ejector member that can be detachably installed to the ejector plate. A cooling channel is formed inside the ejector member. The cooling channel has an inlet end and an outlet end that extend to the outer surface of the ejector member. The inlet end and the outlet end are respectively connected to two liquid flow channels.

2. The ejection device as described in claim 1, characterized in that, At least one end of the liquid flow channel extends through the side surface of the top plate.

3. The ejection device as described in claim 1, characterized in that, The top plate has a mounting groove in the middle; Both of the aforementioned liquid flow channels are connected to the mounting groove; The lower end of the ejector is located in the mounting groove. When the lower end of the ejector is in contact with the inner wall of the mounting groove, the inlet end and the outlet end are connected to the corresponding liquid flow channel.

4. The ejection device as described in claim 3, characterized in that, The inlet end and / or the outlet end are located on the lower end face of the ejector; The corresponding liquid flow channel includes a first liquid inlet section and a second liquid inlet section. The first liquid inlet section extends horizontally and penetrates the side surface of the top plate. The first liquid inlet section is located below the mounting groove. The second liquid inlet section extends vertically and penetrates the bottom wall of the mounting groove. The second liquid inlet section is used to connect with the inlet end.

5. The ejection device as described in claim 1, characterized in that, The two liquid flow channels are arranged in a straight line and extend in opposite directions; or, the two liquid flow channels are arranged side by side and extend in the same direction.

6. The ejection device as claimed in claim 1, characterized in that, The top plate includes a first panel and a second panel stacked in the vertical direction. The upper end surface of the second panel is provided with a first groove in the middle. The first panel is provided with a clearance hole corresponding to the first groove. The clearance hole and the first groove together define a mounting groove. The lower end of the ejector is located within the mounting groove; The liquid flow channel is provided on the first panel and / or the second panel.

7. The ejection device as described in claim 6, characterized in that, The liquid flow channel includes: A first flow channel section is disposed on the first panel, and one end of the first flow channel section penetrates the side surface of the first panel; A second flow channel section is provided on the second panel, and the second flow channel section is connected to the first groove. The third flow channel section connects the first flow channel section and the second flow channel section, and the third flow channel section is disposed between the first panel and the second panel.

8. The ejection device as claimed in claim 7, characterized in that, The first panel and the second panel are each provided with a second groove on their sides facing each other, and the two second grooves together form the third flow channel section; A first through hole is provided on the side surface of the first panel, and the first through hole communicates with the side wall of the corresponding second groove, forming the first flow channel segment; The second panel has a second through hole on its side surface. The second through hole connects the corresponding second groove and the first groove. A plug is provided at the end of the second through hole away from the first groove. The plug and the second through hole together define the second flow channel section.

9. The ejection device as claimed in claim 1, characterized in that, The ejector includes: The main body has two through holes formed therethrough in the vertical direction; and, A pusher block is disposed at the upper end of the main body. A flow channel groove is recessed on the lower end face of the pusher block. The flow channel groove is connected to two connecting holes to form the cooling flow channel. The ends of the two connecting holes facing away from the pusher block form the inlet end and the outlet end.

10. A mold for forming mesh cover products, characterized in that, include: Lower mold base; The ejection device as described in any one of claims 1 to 9, wherein the plate structure of the ejection device is located below the lower mold base; Two template blocks are detachably installed onto the base plate and located on opposite sides of the top plate in the horizontal direction. Each template block has a recessed groove on its upper surface for a pipe joint that communicates with the liquid flow channel.

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