Heating injection molding mechanism for mesh plastic part

Abstract

The utility model discloses a heating injection molding mechanism for a mesh plastic part. The heating injection molding mechanism comprises a movable mold and an A plate mesh insert arranged on the side portion of the movable mold. An access hole extending to the side part of the movable mold is formed in the side part of the movable mold, at least one heating rod is arranged in the access hole, and one side of the heating rod extends into the A plate mesh insert; and the heating rod is suitable for moving along the access hole so as to extend out of the movable mold. The mold has the beneficial effects that the access hole extending to the side part of the movable mold is formed in the side part of the movable mold, at least one heating rod is arranged in the access hole, and one side of the heating rod extends into the A plate mesh insert; and when the heating rod is overhauled or replaced, the heating rod can be pulled to extend out of the access hole so as to be completely separated from the movable mold, so that the heating rod can be conveniently pulled out of the closed mold for overhauling or replacing without opening the mold, the heating rod can be conveniently and quickly overhauled or replaced, and the practicability is high.

Description

Technical Field

[0001] The present application relates to the field of injection molding technology, and in particular to a heating injection molding mechanism for mesh plastic parts. Background Art

[0002] The injection molding process of plastic parts mainly includes six stages: mold closing - filling - pressure holding - cooling - mold opening - demoulding; specifically, it refers to the process of making semi-finished parts of a certain shape through operations such as pressurization, injection, cooling, and separation of molten raw materials.

[0003] During heating injection molding, the heating rod in the mold is generally directly set in the mold. Therefore, after the mold is closed, if the heating rod is damaged or suddenly stops working, the mold needs to be opened first, and then the heating rod needs to be repaired. This will cause the produced product to be discarded, increase the production cost, and have low practicality. Therefore, a heating injection molding mechanism for mesh plastic parts that is easy to quickly repair or replace, reduces production costs, and has high practicality is proposed. Utility Model Content

[0004] One purpose of the present application is to provide a heating injection molding mechanism for mesh plastic parts that is easy to quickly repair or replace, reduces production costs and has high practicality.

[0005] In order to achieve the above objectives, the technical solution adopted in the present application is: a heating injection molding mechanism for mesh plastic parts, comprising a movable mold and an A-plate mesh insert arranged on the side of the movable mold; the side of the movable mold is provided with an inspection port extending to the side of the movable mold, and at least one heating rod is arranged in the inspection port, and one side of the heating rod extends into the A-plate mesh insert; the heating rod is suitable for moving along the inspection port to extend out of the movable mold.

[0006] Preferably, a fixing plate is provided in the inspection port, a pair of inch sleeves are provided on the side of the fixing plate, and the sides of the two inch sleeves are connected to the corresponding sides of the heating rod.

[0007] Preferably, it also includes a fixed mold; the fixed mold side is provided with an embedding groove, a mesh adjustment pad is installed in the embedding groove, a movable mold mesh insert is installed on the side of the mesh adjustment pad through a limiting structure, and the movable mold mesh insert cooperates with the A-plate mesh insert.

[0008] Preferably, the limiting structure includes at least one limiting column installed on the side of the mesh adjustment pad, and at least one limiting groove opened on the side of the movable mold mesh insert, and the limiting column cooperates with the limiting groove.

[0009] Preferably, a demoulding assembly and a base plate are provided inside the fixed mold, and the base plate cooperates with the demoulding assembly through a locking structure, and the base plate is connected to the output end of the driving member; the base plate is suitable for driving the demoulding assembly to move up along the mold opening direction to separate the product from the mold and demould, and the locking structure is suitable for releasing the lock of the demoulding assembly that has moved to the limit, and then the demoulding assembly is suitable for moving downward to separate from the product for secondary demoulding.

[0010] Preferably, the demoulding assembly includes a top plate, a top column and a plurality of ejector pins; the plurality of ejector pins are arranged on the side of the top plate, and the top column is slidably mounted on the bottom plate; the bottom plate is suitable for driving the top plate to move upward to drive the plurality of ejector pins to move upward to separate the product from the mold and demould, and the locking structure is suitable for releasing the lock of the ejector column moved to the extreme position, and then the ejector column moves downward to drive the top plate to move downward with the plurality of ejector pins to separate the product from the mold for secondary demoulding.

[0011] Preferably, the locking structure includes a locking block elastically arranged on the side of the bottom plate, a driving block installed on the fixed mold and a locking groove opened on the side of the ejector column; the demolding assembly moves upward to drive the locking block to be elastically compressed to move away from the locking groove until it is completely extended out of the locking groove, and then the ejector column is suitable for moving downward to drive the multiple ejector pins to move downward and separate from the product for a second time.

[0012] Preferably, a side portion of the locking block is provided with an oblique groove, and the side portion of the driving block is arranged at an angle, and the side portion of the driving block matches the oblique groove on the locking block.

[0013] Preferably, the length of the bottom plate is smaller than the length of the top plate.

[0014] Compared with the prior art, the beneficial effects of the present application are: an inspection port extending to the side of the movable mold is opened on the side of the movable mold, and at least one heating rod is arranged in the inspection port, and one side of the heating rod extends into the A-plate mesh insert; when inspection or replacement is carried out, the heating rod can be pulled out of the inspection port to be completely separated from the movable mold, so that the heating rod can be pulled out of the mold after the mold is closed for inspection or replacement without opening the mold, which is convenient for better and faster inspection or replacement of the heating rod, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the top view of the middle fixed mold structure.

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the cross-sectional structure of the inspection port from the center side.

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of the movement structure of the heating rod during maintenance.

[0019] Figure 5 For this utility model Figure 1 Schematic diagram of the cross-sectional structure from the center.

[0020] Figure 6 For this utility model Figure 5 Enlarged structural diagram at A in the middle.

[0021] Figure 7 For this utility model Figure 5 Schematic diagram of the structure of the demoulding component during demoulding.

[0022] Figure 8 For this utility model Figure 7 Enlarged structural diagram at B in the middle.

[0023] In the figure: 1. movable mold; 11. A-plate mesh insert; 12. Inspection port; 13. Heating rod; 14. Fixed plate; 15. Inch sleeve; 2. Fixed mold; 21. Embedded groove; 22. Mesh adjustment pad; 23. Mesh insert of movable mold; 24. Limiting structure; 241. Limiting column; 242. Limiting groove; 25. Bottom plate; 3. Demolding assembly; 31. Top plate; 32. Ejector column; 33. Ejector pin; 4. Locking structure; 41. Locking block; 411. Bevel groove; 42. Driving block; 43. Locking groove. DETAILED DESCRIPTION

[0024] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0027] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0028] One of the preferred embodiments of the present application is as follows: Figures 1 to 8 As shown, a heating injection molding mechanism for mesh plastic parts includes a movable mold 1 and an A-plate mesh insert 11 installed on the side of the movable mold 1; an inspection port 12 extending to the side of the movable mold 1 is opened on the side of the movable mold 1, and at least one heating rod 13 is arranged in the inspection port 12, and one side of the heating rod 13 extends into the A-plate mesh insert 11 for heating; when replacing or repairing, the inspection port 12 can be opened at this time, and then the heating rod 13 is pulled out from the A-plate mesh insert 11 until the heating rod 13 is completely pulled out from the inspection port 12 of the movable mold 1, and then the heating rod 13 is directly pulled out from the movable mold 1 after the mold is closed without opening the mold, so as to facilitate rapid maintenance or replacement, while reducing production costs and improving practicality.

[0029] In this embodiment, Figure 1 , Figure 3 and Figure 4 As shown, it can be understood that a fixing plate 14 is provided in the inspection port 12, and the fixing plate 14 can be inserted into the inspection port 12, thereby blocking the inspection port 12 to facilitate normal opening and closing of the mold, and a pair of inch sleeves 15 are installed on the side of the fixing plate 14, and the sides of the two inch sleeves 15 are connected to the corresponding heating rods 13, so as to facilitate better removal of the heating rods 13 and improve the practicability and safety of the device, and a temperature sensor is provided on the side of the A-plate mesh insert 11 to facilitate better temperature sensing.

[0030] It should be known that the number of inch sleeves 15 is consistent with the number of heating rods 13, so the number of heating rods 13 can be one, two or more, and the number of inch sleeves 15 should also be consistent.

[0031] It is understandable that if Figure 3 to Figure 4 As shown, the connection modes of the heating rod 13 and the sleeve 15 include but are not limited to the following three modes.

[0032] Arrangement method 1: the inch sleeve 15 and the heating rod 13 are connected and matched by threads; an internal thread is arranged on the inner wall of the side of the inch sleeve 15, and an external thread is arranged on the outer wall of the heating rod 13.

[0033] Setting method two: the inch sleeve 15 and the heating rod 13 are connected by plugging; one side of the heating rod 13 is plugged into the inch sleeve 15.

[0034] Setting method three: a sleeve is provided on the side of the inch sleeve 15, one side of the heating rod 13 is connected to the sleeve, and threaded holes are opened on the sides of the inch sleeve 15, the sleeve and the heating rod 13 to facilitate connecting the heating rod 13 to the inch sleeve 15 by bolts.

[0035] It can be understood that the above three configuration modes are all suitable for the present application, and technicians in this field can select them according to actual needs.

[0036] In this embodiment, Figures 1 to 4 As shown, it also includes a fixed mold 2; an embedding groove 21 is opened on the side of the fixed mold 2, a mesh adjustment pad 22 is installed in the embedding groove 21, and a movable mold mesh insert 23 is slidably installed on the upper end of the mesh adjustment pad 22 through a limiting structure 24, and the movable mold mesh insert 23 and the A-plate mesh insert 11 cooperate with each other; under normal circumstances, the general movable mold mesh insert 23 is fixedly set on the fixed mold 2, so when it is necessary to adjust the mesh, the movable mold mesh insert 23 cannot be processed well, and it is necessary to operate on the larger fixed mold 2 during processing, which is time-consuming and labor-intensive, and has low practicality. By providing the mesh adjustment pad 22, the movable mold mesh insert 23 can be flexibly taken out, which is convenient for better adjustment of the movable mold mesh insert 23, with the advantages of high processing efficiency and convenient processing. On the one hand, the movable mold mesh insert 23 can be limited and fixed by the limiting structure 24, which is convenient for inspection and maintenance of product flash, and has strong practicality.

[0037] In this embodiment, Figures 1 to 4 As shown, the limiting structure 24 includes at least one limiting column 241 installed on the side of the mesh adjustment pad 22, and at least one limiting groove 242 opened on the side of the movable mold mesh insert 23, and the limiting column 241 and the limiting groove 242 cooperate with each other; when adjusting the movable mold mesh insert 23, the movable mold mesh insert 23 can be taken out from the embedding groove 21 at this time, and then the movable mold mesh insert 23 can be adjusted; when installing, the adjusted movable mold mesh insert 23 can be placed in the embedding groove 21 through the limiting column 241.

[0038] It is understandable that since there are many mesh holes on the product, if demolding is performed only once, the mesh holes may be torn or damaged due to the strong demolding force. Therefore, in order to better ensure product molding and improve the molding quality of the product, demolding is required twice to facilitate better demolding of the mesh holes and improve the quality of the product after molding.

[0039] In this embodiment, Figures 5 to 8As shown, a demoulding assembly 3 and a bottom plate 25 are arranged inside the fixed mold 2; the bottom plate 25 is slidably installed in the fixed mold 2, and the demoulding assembly 3 is arranged at the upper end of the bottom plate 25, and the side of the bottom plate 25 is connected to the output end of the driving member; when demoulding, the output end of the driving member moves up with the bottom plate 25 to drive the demoulding assembly 3 to move to the extreme position, at which time the demoulding assembly 3 separates the product from the mold, and at this time the locking structure 4 releases the lock on the demoulding assembly 3, and then moves down again after the demoulding assembly 3 moves to the extreme position, at this time the demoulding assembly 3 will separate the product from the demoulding assembly 3 for secondary demoulding, so as to facilitate better demoulding of the mesh and improve the quality of the product after molding.

[0040] In this embodiment, Figure 5 , Figure 7 As shown, it can be understood that the demoulding assembly 3 includes a top plate 31, a top column 32 and a plurality of ejector pins 33; the top plate 31 is arranged in the fixed mold 2, the plurality of ejector pins 33 are distributed and arranged on the side of the top plate 31, the ejector column 32 is arranged on the bottom of the top plate 31, and the side of the ejector column 32 cooperates with the bottom plate 25 through the locking structure 4; when demoulding is performed, the driving member moves up with the bottom plate 25, the upward movement of the bottom plate 25 will move up with the ejector column 32, the upward movement of the ejector column 32 will move up with the top plate 31, the upward movement of the top plate 31 will drive the plurality of ejector pins 33 to move up to eject the product from the mold and demould, at this time, when the ejector column 32 moves up, it will drive the locking structure 4 to release the lock of the ejector column 32, at this time, the ejector column 32 under the gravity of the top plate 31 makes the top plate 31 move down with the plurality of ejector pins 33, the downward movement of the plurality of ejector pins 33 will separate from the product for secondary demoulding, thereby facilitating better demoulding and improving the quality of the product after molding.

[0041] In this embodiment, Figures 5 to 8 As shown, the locking structure 4 includes a locking block 41 elastically installed on the side of the bottom plate 25 by a spring, a driving block 42 installed on the fixed mold 2 and a locking groove 43 opened on the side of the ejector column 32; when demolding is performed, the bottom plate 25 moves up to squeeze the locking block 41 and the driving block 42, thereby causing the locking block 41 to elastically move leftward, and the locking block 41 will gradually extend out of the locking groove 43 when it moves leftward. At this time, the ejector plate 31 will carry multiple ejector pins 33 to eject the product from the mold. When the bottom plate 25 moves to the extreme position, the locking block 41 will completely extend out of the locking groove 43. At this time, the ejector column 32 is unlocked, and the ejector column 32 and the top plate 31 move downward under the action of gravity. The ejector column 32 moves downward and will carry multiple ejector pins 33 downward to separate from the product, thereby performing secondary demolding.

[0042] In this embodiment, Figure 6 , Figure 8 As shown, it can be understood that the length of the upper end of the fixed mold 2 is greater than the length of the lower end, the top plate 31 is arranged at the upper end of the fixed mold 2 and fits with the two sides of the upper end of the fixed mold 2, and the bottom plate 25 is arranged at the lower end of the fixed mold 2 and fits with the two sides of the lower end of the fixed mold 2.

[0043] In this embodiment, Figures 6 to 8 As shown, it should be known that the side of the locking block 41 is provided with an oblique groove 411, and the side of the driving block 42 is inclined, and the side of the driving block 42 cooperates with the oblique groove 411 on the locking block 41; when demoulding, the driving member moves up with the bottom plate 25, and the upward movement of the bottom plate 25 drives the oblique groove 411 of the locking block 41 to squeeze the inclined surface of the driving block 42, thereby causing the locking block 41 to elastically move leftward, and the elastic leftward movement of the locking block 41 will cause the side of the locking block 41 to gradually extend out of the locking groove 43 on the side of the ejector column 32, and at this time, the bottom plate 25 can move up with the ejector column 32, and the upward movement of the ejector column 32 can move up with the ejector plate 31, and the upward movement of the ejector plate 31 can move up with a plurality of ejector pins 33 to eject the product from the mold. When the bottom plate 25 moves to the extreme position, the locking block 41 completely extends out of the locking groove 43, and the ejector column 32 is unlocked, so that the ejector plate 31 moves down with the multiple ejector pins 33 under the action of gravity to the upper end of the fixed mold 2. At this time, the multiple ejector pins 33 are separated from the product for secondary demolding. At this time, the driving member is reset to drive the bottom plate 25 to move down to fit with the bottom of the fixed mold 2. At this time, the downward movement of the bottom plate 25 will cause the locking block 41 to gradually elastically reset to the right. At this time, when the bottom plate 25 moves down to the extreme position, the locking block 41 will elastically reset to the locking groove 43 on the side of the ejector column 32, and then re-lock the ejector column 32, so that when the bottom plate 25 moves up again, it can drive the demolding assembly 3 to move up as a whole to initially eject the product from the mold.

[0044] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A heating injection molding mechanism for mesh plastic parts, characterized in that: It includes a movable mold and an A-plate mesh insert arranged on the side of the movable mold; the side of the movable mold is provided with an inspection port extending to the side of the movable mold, and at least one heating rod is arranged in the inspection port, and one side of the heating rod extends into the A-plate mesh insert; the heating rod is suitable for moving along the inspection port to extend out of the movable mold.

2. The heating injection molding mechanism for mesh plastic parts according to claim 1, characterized in that: A fixing plate is arranged in the inspection port, a pair of inch sleeves are arranged on the side of the fixing plate, and the side portions of the two inch sleeves are connected to the corresponding side portions of the heating rod.

3. The heating injection molding mechanism for mesh plastic parts according to claim 1, characterized in that: It also includes a fixed mold; the side of the fixed mold is provided with an embedding groove, a mesh adjustment pad is installed in the embedding groove, and the side of the mesh adjustment pad is installed with a movable mold mesh insert through a limiting structure, and the movable mold mesh insert cooperates with the A-plate mesh insert.

4. The heating injection molding mechanism for mesh plastic parts according to claim 3, characterized in that: The limiting structure includes at least one limiting column installed on the side of the mesh adjustment pad, and at least one limiting groove opened on the side of the movable mold mesh insert, and the limiting column cooperates with the limiting groove.

5. The heating injection molding mechanism for mesh plastic parts according to claim 3, characterized in that: A demoulding assembly and a bottom plate are provided inside the fixed mold, and the bottom plate cooperates with the demoulding assembly via a locking structure, and the bottom plate is connected to the output end of the driving member; the bottom plate is suitable for driving the demoulding assembly to move up along the mold opening direction to separate the product from the mold and demould, and the locking structure is suitable for releasing the lock of the demoulding assembly that has moved to the limit, and then the demoulding assembly is suitable for moving down to separate from the product for secondary demoulding.

6. The heating injection molding mechanism for mesh plastic parts according to claim 5, characterized in that: The demoulding assembly includes a top plate, a top column and a plurality of ejector pins; the plurality of ejector pins are arranged on the side of the top plate, and the top column is slidably mounted on the bottom plate; the bottom plate is suitable for driving the top plate to move upward to drive the plurality of ejector pins to move upward to separate the product from the mold and demould, and the locking structure is suitable for releasing the lock of the ejector column moved to the extreme position, and then the ejector column moves downward to drive the top plate to move downward with the plurality of ejector pins to separate the product from the mold for secondary demoulding.

7. The heating injection molding mechanism for mesh plastic parts according to claim 6, characterized in that: The locking structure includes a locking block elastically arranged on the side of the bottom plate, a driving block installed on the fixed mold and a locking groove opened on the side of the ejector column; the demolding assembly moves upward to drive the locking block to be elastically compressed to move away from the locking groove until it is completely extended out of the locking groove, and then the ejector column is suitable for moving downward to drive the multiple ejector pins to move downward and separate from the product for a second time.

8. The heating injection molding mechanism for mesh plastic parts according to claim 7, characterized in that: The locking block has a side portion with an oblique groove, the driving block has a side portion that is inclined, and the driving block has a side portion that matches the oblique groove on the locking block.

9. The heating injection molding mechanism for mesh plastic parts according to claim 6, characterized in that: The length of the bottom plate is smaller than the length of the top plate.

Images