Cold runner nozzle type mold with flow adjusting structure

Abstract

The utility model discloses a cold runner nozzle type die with a flow regulating structure, which comprises a lower die holder, an upper die holder is clamped at the top end of the lower die holder, a plurality of mounting holes are formed in the top end of the upper die holder, and cold runner nozzle bodies are clamped in the mounting holes. The cold runner nozzle type mold comprises a plurality of cold runner nozzle main bodies, material guiding channels and cooling channels are formed in the plurality of cold runner nozzle main bodies, the plurality of cooling channels are arranged corresponding to the plurality of material guiding channels respectively, and placement grooves are formed in the tops of one sides of the inner walls of the plurality of material guiding channels. And then the threaded rod is driven to rotate, so that the adjusting block is pushed to move along the placement groove, the size of the overlapped cross section area of the adjusting block and the material guide channel is adjusted, the flow of the rubber material in the material guide channel in unit time is adjusted, and different use requirements can be met.

Description

Technical Field

[0001] The utility model relates to the field of cold runner nozzle type molds, in particular to a cold runner nozzle type mold with a flow regulating structure. Background Art

[0002] Since the temperature range of materials such as thermosetting plastics, spherical molds, and silicone rubber is small after the cross-linking reaction in the softened state and the solidification molding, the temperature of the runner must be accurately controlled. Otherwise, under high-pressure and high-speed injection molding, the temperature in the runner rises sharply, accelerating the curing reaction of the thermosetting plastic, increasing the viscosity, and the product cannot be fully filled, affecting the product quality. Therefore, cold runner nozzle molds are usually used for injection molding of these materials. However, the existing cold runner nozzle molds are not convenient for adjusting the flow rate of the rubber in the material guide channel per unit time during use, resulting in the inability to adapt to different usage requirements.

[0003] In order to solve the above problems, a cold runner nozzle mold with a flow regulating structure is proposed herein. Utility Model Content

[0004] The utility model aims to provide a cold runner nozzle type mold with a flow regulating structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a cold runner nozzle mold with a flow regulating structure, comprising a lower mold base, an upper mold base is clamped on the top of the lower mold base, a plurality of mounting holes are opened on the top of the upper mold base, a cold runner nozzle body is clamped on the inside of the plurality of mounting holes, a material guide channel and a cooling channel are opened inside the plurality of cold runner nozzle bodies, a plurality of cooling channels are respectively arranged corresponding to a plurality of material guide channels, a mounting groove is opened on the top of one side of the inner wall of a plurality of material guide channels, a threaded hole is opened on the top of one side of a plurality of cold runner nozzle bodies, a threaded rod is threadedly arranged inside the plurality of threaded holes, a knob is fixedly connected to one end of the plurality of threaded rods, an end of the plurality of threaded rods away from the knobs respectively extends to the inside of a plurality of mounting grooves and is rotatably connected to a rotating seat, an end of the plurality of rotating seats away from the threaded rods is fixedly connected to an adjusting block, and a sealing gasket is fixedly arranged on the surface of the plurality of adjusting blocks.

[0006] By turning the knob, the threaded rod is driven to rotate, thereby pushing the adjustment block to move along the mounting groove, and then adjusting the size of the overlapping cross-sectional area of ​​the adjustment block and the material guide channel, thereby adjusting the flow rate of the rubber in the material guide channel per unit time, which can adapt to different usage requirements.

[0007] Preferably, several of the mounting holes are provided with connecting slots on both sides, several of the connecting slots are provided with connecting blocks inside, several of the connecting blocks are respectively fixedly connected to several cold runner nozzle bodies, and several cold runner nozzle bodies are conveniently initially limited by the limiting engagement of several connecting slots with several connecting blocks.

[0008] Preferably, several of the connecting slots are provided with installation grooves on both sides of the inner walls, several of the installation grooves are fixedly provided with limiting spring plates inside, several of the connecting blocks are provided with limiting grooves on both sides, several of the limiting spring plates are respectively engaged with several limiting grooves, and several cold runner nozzle bodies can be further limited and fixed by the limiting engagement of several limiting spring plates with several limiting grooves.

[0009] Preferably, water inlets and water outlets are respectively provided on both sides of the top of several of the cold runner nozzle bodies, and several of the water inlets and several of the water outlets are respectively connected to several cooling channels, and cold water is introduced into the cold runner nozzle body through the water inlet, and the water that has undergone heat exchange is discharged through the water outlet.

[0010] Preferably, a feed port is provided in the middle of the top of several cold runner nozzle bodies, and several of the feed ports are respectively connected to several material guide channels, and the provision of the feed port facilitates the introduction of rubber into the material guide channels.

[0011] Preferably, positioning holes are provided at the four corners at the top of the lower die base, and positioning columns are fixedly provided at the four corners at the bottom of the upper die base. The four positioning columns are respectively engaged with the four positioning holes, and the matching arrangement of the four positioning columns and the four positioning holes facilitates the precise matching of the upper die base and the lower die base.

[0012] Preferably, a base is fixedly provided at the bottom end of the lower mold base, a plurality of molding grooves are opened in the middle of the top end of the lower mold base, a plurality of cold runner nozzle bodies are respectively arranged corresponding to the plurality of molding grooves, and rubber is sprayed into the plurality of molding grooves through the plurality of cold runner nozzle bodies.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the limiting engagement of several connecting card slots with several connecting card blocks, several cold runner nozzle bodies are initially limited, and through the limiting engagement of several limiting spring pieces with several limiting grooves, several cold runner nozzle bodies are further limited and fixed. By using a large force to pull the cold runner nozzle body upward, the corresponding four limiting spring pieces are separated from the four limiting grooves, and the cold runner nozzle body is no longer limited, so that the cold runner nozzle body is easy to disassemble and replace;

[0015] 2. By turning the knob, the threaded rod is driven to rotate, thereby pushing the adjustment block to move along the mounting groove, and then adjusting the size of the overlapping cross-sectional area of ​​the adjustment block and the material guide channel, and then adjusting the flow rate of the rubber in the material guide channel per unit time, which can adapt to different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the utility model;

[0018] Figure 3 It is an enlarged view of part A of the utility model;

[0019] Figure 4 This is a structural diagram of the cold runner nozzle body of the utility model;

[0020] Figure 5 It is an enlarged view of part B of the utility model;

[0021] Figure 6 It is a cross-sectional view of the cold runner nozzle body of the utility model.

[0022] In the figure: 1. lower die base; 2. positioning hole; 3. positioning column; 4. upper die base; 5. molding groove; 6. cold runner nozzle body; 7. placement hole; 8. connecting card slot; 9. connecting card block; 10. installation slot; 11. limiting spring piece; 12. limiting slot; 13. material guide channel; 14. cooling channel; 15. water inlet; 16. feed port; 17. water outlet; 18. placement groove; 19. threaded hole; 20. threaded rod; 21. knob; 22. rotating seat; 23. adjustment block; 24. sealing gasket; 25. base. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-6The utility model provides a cold runner nozzle type mold with a flow regulating structure, including a lower mold base 1, an upper mold base 4 is clamped on the top of the lower mold base 1, a plurality of placement holes 7 are provided on the top of the upper mold base 4, a cold runner nozzle body 6 is clamped inside the plurality of placement holes 7, a material guide channel 13 and a cooling channel 14 are provided inside the plurality of cold runner nozzle bodies 6, a plurality of cooling channels 14 are respectively arranged corresponding to the plurality of material guide channels 13, a placement groove 18 is provided on the top of one side of the inner wall of the plurality of material guide channels 13, a threaded hole 19 is provided on the top of one side of the plurality of cold runner nozzle bodies 6, and a threaded rod 2 is threadedly provided inside the plurality of threaded holes 19. 0, one end of several threaded rods 20 is fixedly connected with a knob 21, one end of several threaded rods 20 away from the knob 21 extends to the inside of several mounting grooves 18 and is rotatably connected with a rotating seat 22, one end of several rotating seats 22 away from the threaded rod 20 is fixedly connected with an adjusting block 23, and the surface of several adjusting blocks 23 is fixedly provided with a sealing gasket 24. By rotating the knob 21, the threaded rod 20 is driven to rotate, thereby pushing the adjusting block 23 to move along the mounting groove 18, and then adjusting the size of the cross-sectional area overlapped by the adjusting block 23 and the material guiding channel 13, and then adjusting the flow rate of the rubber material in the material guiding channel 13 per unit time, which can adapt to different usage requirements.

[0025] Connecting slots 8 are provided on both sides of the plurality of placement holes 7, and connecting blocks 9 are provided inside the plurality of connecting slots 8, and the plurality of connecting blocks 9 are fixedly connected to the plurality of cold runner nozzle bodies 6, respectively. Installation slots 10 are provided on both sides of the inner walls of the plurality of connecting slots 8, and limiting spring sheets 11 are fixedly provided inside the plurality of installation slots 10, and limiting slots 12 are provided on both sides of the plurality of connecting blocks 9, and the plurality of limiting spring sheets 11 are respectively connected by clamping with the plurality of limiting slots 12, and water inlets 15 and water outlets 17 are provided on both sides of the tops of the plurality of cold runner nozzle bodies 6, respectively, and the plurality of water inlets 15 and the plurality of water outlets 17 are respectively connected to the plurality of cooling channels 14;

[0026] When in use, several connecting slots 8 are respectively engaged with several connecting blocks 9 to facilitate preliminary limiting of several cold runner nozzle bodies 6, and several limiting springs 11 are respectively engaged with several limiting slots 12 to facilitate further limiting and fixing of several cold runner nozzle bodies 6, and cold water is introduced into the cold runner nozzle body 6 through the water inlet 15, and the water after heat exchange is discharged through the water outlet 17;

[0027] A feed port 16 is provided in the middle of the top of the plurality of cold runner nozzle bodies 6, and the plurality of feed ports 16 are respectively connected with the plurality of material guide channels 13. Positioning holes 2 are provided at the four corners of the top of the lower die base 1, and positioning columns 3 are fixedly provided at the four corners of the bottom of the upper die base 4. The four positioning columns 3 are respectively engaged with the four positioning holes 2. A base 25 is fixedly provided at the bottom of the lower die base 1, and a plurality of molding grooves 5 are provided in the middle of the top of the lower die base 1. The plurality of cold runner nozzle bodies 6 are respectively provided corresponding to the plurality of molding grooves 5.

[0028] When in use, the feed port 16 is provided to facilitate the introduction of rubber into the material guide channel 13, and the four positioning columns 3 and the four positioning holes 2 are provided to facilitate the precise matching of the upper mold base 4 and the lower mold base 1, and the rubber is sprayed into the multiple molding grooves 5 through the multiple cold runner nozzle bodies 6.

[0029] When the embodiment of the present application is in use: a plurality of connecting slots 8 are respectively engaged with a plurality of connecting blocks 9 to facilitate preliminary limiting of a plurality of cold runner nozzle bodies 6, and a plurality of limiting spring sheets 11 are respectively engaged with a plurality of limiting slots 12 to facilitate further limiting and fixing of a plurality of cold runner nozzle bodies 6. In the process of the cold runner nozzle body 6 introducing the rubber material into the molding groove 5, the knob 21 is rotated to drive the threaded rod 20 to rotate, thereby pushing the adjustment block 23 to move along the placement groove 18, and then the size of the cross-sectional area overlapped by the adjustment block 23 and the material guide channel 13 is adjusted, and then the flow rate of the rubber material in the material guide channel 13 per unit time is adjusted, so as to adapt to different usage requirements. When the cold runner nozzle body 6 fails, the cold runner nozzle body 6 is pulled upward by using a large force, so that the corresponding four limiting spring sheets 11 are separated from the four limiting slots 12, and the cold runner nozzle body 6 is no longer limited, so that the cold runner nozzle body 6 is convenient to disassemble and replace.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cold runner nozzle type mold with a flow regulating structure, comprising a lower mold base (1), characterized in that: The top of the lower die seat (1) is engaged with an upper die seat (4), the top of the upper die seat (4) is provided with a plurality of placement holes (7), the interiors of the plurality of placement holes (7) are engaged with cold runner nozzle bodies (6), the interiors of the plurality of cold runner nozzle bodies (6) are provided with material guide channels (13) and cooling channels (14), the plurality of cooling channels (14) are respectively provided corresponding to the plurality of material guide channels (13), the tops of the inner walls of the plurality of material guide channels (13) are provided with placement grooves (18), and the plurality of cold runner nozzle bodies (6) are provided with a plurality of material guide channels (13). ) are provided with threaded holes (19) at the top of one side, a plurality of the threaded holes (19) are threadedly provided with threaded rods (20) inside, a plurality of the threaded rods (20) are fixedly connected with knobs (21) at one end, a plurality of the threaded rods (20) are respectively extended to the inside of a plurality of placement grooves (18) at one end away from the knobs (21) and are rotatably connected with rotating seats (22), a plurality of the rotating seats (22) are fixedly connected with adjusting blocks (23) at one end away from the threaded rods (20), and a plurality of the adjusting blocks (23) are fixedly provided with sealing pads (24) on their surfaces.

2. The cold runner nozzle type mold with a flow regulating structure according to claim 1, characterized in that: Connecting slots (8) are provided on both sides of a plurality of the placement holes (7), connecting blocks (9) are provided inside the plurality of the connecting slots (8), and the plurality of the connecting blocks (9) are fixedly connected to a plurality of the cold runner nozzle bodies (6) respectively.

3. The cold runner nozzle type mold with a flow regulating structure according to claim 2, characterized in that: Both sides of the inner walls of the plurality of connection slots (8) are provided with mounting slots (10), and limiting spring sheets (11) are fixedly arranged inside the plurality of mounting slots (10). Both sides of the plurality of connection blocks (9) are provided with limiting slots (12), and the plurality of limiting spring sheets (11) are respectively engaged and connected with the plurality of limiting slots (12).

4. The cold runner nozzle type mold with a flow regulating structure according to claim 1, characterized in that: Water inlets (15) and water outlets (17) are respectively provided on both sides of the top ends of the plurality of cold runner nozzle bodies (6); the plurality of water inlets (15) and the plurality of water outlets (17) are respectively connected to the plurality of cooling channels (14).

5. The cold runner nozzle type mold with a flow regulating structure according to claim 1, characterized in that: A feed port (16) is provided in the middle of the top end of a plurality of the cold runner nozzle bodies (6), and the plurality of the feed ports (16) are respectively connected to a plurality of the material guide channels (13).

6. The cold runner nozzle type mold with a flow regulating structure according to claim 1, characterized in that: The four corners at the top of the lower die seat (1) are each provided with a positioning hole (2), and the four corners at the bottom of the upper die seat (4) are each fixedly provided with a positioning column (3), and the four positioning columns (3) are respectively engaged and connected with the four positioning holes (2).

7. The cold runner nozzle type mold with a flow regulating structure according to claim 1, characterized in that: A base (25) is fixedly arranged at the bottom end of the lower die seat (1), a plurality of molding grooves (5) are opened in the middle of the top end of the lower die seat (1), and a plurality of cold runner nozzle bodies (6) are respectively arranged corresponding to the plurality of molding grooves (5).

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