Hot runner system

Abstract

The utility model provides a hot runner system which comprises a first splitter plate provided with a splitter runner and a main entrance port communicated with the splitter runner; the first hot nozzle is provided with a first runner and a first ejection port communicated with the first runner; the angle adjusting part is selectively connected with the first hot nozzle and the first splitter plate, the angle adjusting part is provided with a plane, an inclined plane and a transition runner communicating the plane and the inclined plane, the plane and the inclined plane are arranged at an acute angle, and a main incident port of the first splitter plate is communicated with a first emergent port of the first hot nozzle through the transition runner. According to the hot runner system, the first splitter plate and the first hot nozzle are connected through the angle adjusting piece, the angle is formed between the plane and the inclined face of the angle adjusting piece, the angle adjusting piece with the angle between the plane and the inclined face meeting the production requirement can be selected according to needs, and therefore the hot runner system adapts to molds with various inclination angles.

Description

Technical Field

[0001] The present application relates to the field of hot runner technology, and in particular to a hot runner system. Background Art

[0002] In the production of injection molded products, the surface of the product often appears at an inclined angle. However, the manifold and other structures in the hot runner system are usually placed horizontally, and the hot nozzle is connected to the hot runner main board at a right angle. This causes the contact between the hot nozzle and the mold cavity to be at an inclined angle. After injection, a wedge-shaped residue will be left at the gate of the product, which needs to be removed by cutting or polishing. This increases production time and the surface quality of the product after cutting or polishing cannot meet the requirements of high-quality products. To solve this problem, when facing the inclined angle of the product surface, inclined hot nozzles with 45°, 60° and 90° are designed. However, the optional tilt angles of the inclined hot nozzle are limited and cannot meet all tilt angles. Summary of the Invention

[0003] The purpose of this application is to provide a hot runner system, in which the first hot nozzle and the first diverter plate can be selectively connected through an angle adjustment member, thereby allowing the angle adjustment member to be replaced with different angles between the plane and the inclined surface according to different angle requirements, thereby solving the problem that the existing technology cannot meet all the inclination angles in the injection molded products.

[0004] In order to achieve one of the above-mentioned objectives of the invention, an embodiment of the present application provides a hot runner system, comprising:

[0005] a first diverter plate, provided with a diverter channel and a main inlet communicating with the diverter channel;

[0006] a first hot nozzle, provided with a first flow channel and a first outlet communicating with the first flow channel;

[0007] The angle adjustment member can selectively connect the first hot nozzle and the first diverter plate. The angle adjustment member is provided with a plane, an inclined surface and a transition flow channel connecting the plane and the inclined surface. The plane and the inclined surface are set at an acute angle. The main inlet of the first diverter plate and the first outlet of the first hot nozzle are connected through the transition flow channel.

[0008] In one embodiment of the present application, the angle adjustment member is connected to the first hot nozzle at one end to form a first accommodating cavity connected to the transition flow channel. The first hot nozzle includes a hot nozzle body and a docking nozzle tip. The hot runner system also includes a docking member connected to the angle adjustment member. The docking member is at least partially arranged in the first accommodating cavity and is sleeved on the docking nozzle tip. The docking nozzle tip is connected to the transition flow channel.

[0009] In one embodiment of the present application, the hot nozzle body is provided with a first branch channel and a second accommodating cavity that are connected to each other, the docking nozzle tip is provided with a second branch channel, and the docking nozzle tip portion is provided in the second accommodating cavity, so that the first branch channel and the second branch channel are connected to form a first channel.

[0010] In one embodiment of the present application, the inner diameter of the second accommodating cavity is greater than the inner diameter of the first branch channel to form a step at the connection between the two, and one end of the docking nozzle tip abuts against the step formed by the second accommodating cavity and the first branch channel.

[0011] In one embodiment of the present application, the docking nozzle tip is formed with a step portion, and the first hot nozzle further includes a cover cap, which is sleeved on the outside of the docking nozzle tip and abuts against the step portion, and the cover cap is connected to the hot nozzle body at one end of the docking nozzle tip.

[0012] In one embodiment of the present application, the inner diameter of the first branch channel at one end close to the second branch channel is equal to the inner diameter of the second branch channel at one end close to the first branch channel.

[0013] In one embodiment of the present application, the inner diameter of the first accommodating cavity is greater than the inner diameter of the transition flow channel, and the inner wall of the first accommodating cavity is provided with an internal thread, and the outside of the docking piece is provided with an external thread, the docking piece is threadedly connected to the first accommodating cavity and one end of the docking piece abuts against the step formed by the first accommodating cavity and the transition flow channel.

[0014] In one embodiment of the present application, the first diverter plate has a first surface with the main incident port, the plane of the angle adjustment member abuts against the first surface, and the first accommodating cavity is arranged near one end of the inclined surface.

[0015] In one embodiment of the present application, a first giveway cavity is provided at the main inlet of the first diverter plate, and a second giveway cavity is provided at one end of the transition channel close to the plane. The hot runner system also includes an anti-overflow ring provided in the first giveway cavity and the second giveway cavity, and the inner diameter of the diverter channel = the inner diameter of the transition channel = the inner diameter of the anti-overflow ring.

[0016] In one embodiment of the present application, the first diverter plate further includes a main outlet communicated with the diverter flow channel, and the hot runner system further includes a second hot nozzle communicated with the diverter flow channel through the main outlet.

[0017] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0018] In the hot runner system provided in the present application, the first hot nozzle and the first diverter plate can be selectively connected through an angle adjustment member, thereby allowing the angle adjustment member to be replaced with different angles between the plane and the inclined surface according to different angle requirements, so that the hot runner system provided in the present application is suitable for various inclination angles of injection molded products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the hot runner system in an embodiment of the present application.

[0020] Figure 2 yes Figure 1 Front view of the hot runner system.

[0021] Figure 3 yes Figure 1 Left side view of the hot runner system.

[0022] Figure 4 yes Figure 3 Schematic cross-sectional view along line AA.

[0023] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0024] Figure 6 yes Figure 4 Enlarged view of point C in the middle.

[0025] 1. First diverter plate; 11. Diverter channel; 12. First clearance chamber; 2. First hot nozzle; 21. First channel; 22. Hot nozzle body; 221. First diverter channel; 222. Second accommodating chamber; 23. Butt nozzle tip; 231. Second diverter channel; 232. Step portion; 24. Cover cap; 241. Socket portion; 242. Connecting portion; 3. Angle adjustment member; 31. Transition channel; 32. Plane; 33. Inclined surface; 34. First accommodating chamber; 35. Second clearance chamber; 4. Butt fitting; 5. Second diverter plate; 6. Second hot nozzle; 61. Second channel; 7. Anti-overflow ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] As used herein, terms such as "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" that indicate spatial relative positions are used for ease of explanation to describe the relationship of one element or feature relative to another element or feature as shown in the accompanying drawings. Spatially relative terms may be intended to encompass different orientations of the device in use or operation other than the orientation shown in the drawings.

[0028] For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] Furthermore, it should be understood that although the terms first, second, etc. may be used herein to describe various elements or structures, the objects being described should not be limited by these terms. These terms are merely used to distinguish the objects being described from one another. For example, a first accommodating cavity may be referred to as a second accommodating cavity, and similarly, a second accommodating cavity may be referred to as a first accommodating cavity without departing from the scope of protection of this application.

[0031] The present application embodiment provides a hot runner system, such as Figures 1 to 6 As shown, it includes a first diverter plate 1, a first hot nozzle 2 and an angle adjustment member 3 connecting the first diverter plate 1 and the first hot nozzle 2. The first diverter plate 1 is provided with a diverter channel 11 and a main inlet connected to the diverter channel 11; the first hot nozzle 2 is provided with a first channel 21 and a first outlet connected to the first channel 21; the angle adjustment member 3 can selectively connect the first hot nozzle 2 and the first diverter plate 1, and the angle adjustment member 3 is provided with a plane 32, an inclined surface 33 and a transition channel 31 connecting the plane 32 and the inclined surface 33. The plane 32 and the inclined surface 33 are set at an acute angle, and the main inlet of the first diverter plate 1 and the first outlet of the first hot nozzle 2 are connected through the transition channel 31.

[0032] In the hot runner system provided in the present application, the first diverter plate 1 and the first hot nozzle 2 are connected by an angle adjustment member 3, and the plane 32 and the inclined surface 33 of the angle adjustment member 3 are set at an angle. Therefore, a plurality of angle adjustment members 3 can be set, and the planes 32 and the inclined surfaces 33 of these angle adjustment members 3 have different angles. During production, the angle adjustment member 3 with an angle that can adapt to the production requirements can be selected according to needs, so that the hot runner system provided in the present application can be used for injection molding molds with different inclination angles.

[0033] In one embodiment of the present application, Figure 4 、 5 The angle adjustment member 3 is connected to the first hot nozzle 2 at one end to form a first accommodating cavity 34 connected to the transition flow channel 31. The first hot nozzle 2 includes a hot nozzle body 22 and a docking nozzle tip 23. The hot runner system also includes a docking member 4 connected to the angle adjustment member 3. The docking member 4 is at least partially arranged in the first accommodating cavity 34 and is sleeved on the docking nozzle tip 23. The docking nozzle tip 23 is connected to the transition flow channel 31.

[0034] A first accommodating cavity 34 connected to the transition flow channel 31 is provided at the end of the angle adjustment member 3 close to the first hot nozzle 2, and the outer wall of the docking member 4 is connected to the inner wall of the first accommodating cavity 34. The first outlet of the first hot nozzle 2 is provided at the end of the docking nozzle tip 23 away from the hot nozzle body 22. The docking nozzle tip 23 is extended into the docking member 4, and the first outlet is aligned with the transition flow channel 31, which can achieve the positioning and fixing effect of the first hot nozzle 2.

[0035] In one embodiment of the present application, the inner diameter of the first accommodating cavity 34 is greater than the inner diameter of the transition channel 31. The inner wall of the first accommodating cavity 34 is provided with internal threads, while the exterior of the docking member 4 is provided with external threads. The docking member 4 is threadedly connected to the first accommodating cavity 34, and one end of the docking member 4 abuts against the step formed by the first accommodating cavity 34 and the transition channel 31. As the docking member 4 is tightened into the first accommodating cavity 34, one end of the docking member 4 abuts against the end surface of the first accommodating cavity 34 near the transition channel 31, preventing a gap from forming between the angle adjustment member 3 and the docking member 4, which could cause fluid to leak out.

[0036] In one embodiment of the present application, the hot nozzle body 22 is provided with a first diverter channel 221 and a second accommodating cavity 222 that are interconnected. The docking nozzle tip 23 is provided with a second diverter channel 231, and the docking nozzle tip 23 is partially disposed in the second accommodating cavity 222, so that the first diverter channel 221 and the second diverter channel 231 are connected to form the first flow channel 21. The first diverter channel 221 is further provided with a first inlet at the end away from the second accommodating cavity 222. The first hot nozzle 2 is further provided with a second diverter plate 5 at the end away from the first diverter plate 1. The first inlet is connected to the second diverter plate 5 and receives fluid from the second diverter plate 5. The fluid enters the diverter channel 11 of the first diverter plate 1 through the first diverter channel 221, the second diverter channel 231, and the transition channel 31.

[0037] In one embodiment of the present application, the inner diameter of the second accommodating cavity 222 is greater than the inner diameter of the first branch channel 221 to form a step at the connection between the two, and one end of the docking nozzle tip 23 abuts the step formed by the second accommodating cavity 222 and the first branch channel 221.

[0038] like Figure 4 、 5 In the embodiment, the outer diameter of the portion of the docking nozzle tip 23 disposed within the second accommodating cavity 222 is consistent with the outer diameter of the second accommodating cavity 222. One end of the docking nozzle tip 23 abuts against the end surface of the second accommodating cavity 222 near the end of the first branch channel 221, thereby connecting the docking nozzle tip 23 to the nozzle body 22. The inner diameter of the second branch channel 231 near the end of the first branch channel 221 is equal to the inner diameter of the first branch channel 221 near the end of the second branch channel 231. This ensures a smooth connection between the first branch channel 221 and the second branch channel 231, avoiding the formation of a step at the connection between the two, which could cause fluid accumulation at the step.

[0039] In one embodiment of the present application, the docking nozzle tip 23 is formed with a step portion 232, and the first hot nozzle 2 also includes a cover cap 24, which is sleeved on the outside of the docking nozzle tip 23 and abuts against the step portion 232, and the cover cap 24 is connected to the hot nozzle body 22 via one end of the docking nozzle tip 23.

[0040] One end of the docking nozzle tip 23 is positioned within the second accommodating cavity 222, while the other end extends into the docking member 4. A central portion protrudes outward to form a stepped portion 232. The cap 24 includes a sleeve portion 241 and a connecting portion 242. The connecting portion 242 sleeves onto the exterior of the nozzle body 22 and is provided with internal threads. The nozzle body 22 is provided with external threads on the outer wall of one end of the docking nozzle tip 23. The cap 24 and the nozzle body 22 are connected by the internal and external threads. The sleeve portion 241 sleeves onto the exterior of the docking nozzle tip 23 and abuts against the stepped portion 232. As the connecting portion 242 is tightened axially along the nozzle body 22, the sleeve portion 241 presses tightly against the stepped portion 232, pushing the docking nozzle tip 23 inward, causing one end of the docking nozzle tip 23 to tightly abut the end surface of the second accommodating cavity 222 near the first diverter 221, thereby preventing a gap from forming between the nozzle body 22 and the docking nozzle tip 23.

[0041] In one embodiment of the present application, the first diverter plate 1 has a first surface with a main incident port, such as Figure 4 In the embodiment, the flat surface 32 of the angle adjustment member 3 abuts against the first surface, and the first accommodating cavity 34 is provided at one end close to the inclined surface 33, so that the first hot nozzle 2 abuts against the inclined surface 33 of the angle adjustment member 3. Of course, the flat surface 32 of the angle adjustment member 3 can also abut against the first hot nozzle 2, and the inclined surface 33 abuts against the first surface of the first diverter plate 1.

[0042] In one embodiment of the present application, a first giveway cavity 12 is provided at the main inlet of the first diverter plate 1, and a second giveway cavity 35 is provided at one end of the transition channel 31 close to the plane 32. The hot runner system also includes an anti-overflow ring 7 provided in the first giveway cavity 12 and the second giveway cavity 35. The inner diameter of the diverter channel 11 = the inner diameter of the transition channel 31 = the inner diameter of the anti-overflow ring 7.

[0043] The angle adjustment member 3 is connected to the first diverter plate 1 by screws. Since the angle adjustment member 3 abuts the first surface of the first diverter plate 1, there is no positioning structure between the angle adjustment member 3 and the first diverter plate 1 except the screws. The diverter channel 11 and the transition channel 31 are easily misaligned and cause deviations. An anti-overflow ring 7 is provided at the connection between the diverter channel 11 and the transition channel 31, which not only prevents the fluid from flowing out from between the first diverter plate 1 and the angle adjustment member 3, but also plays a positioning role.

[0044] In one embodiment of the present application, the first manifold 1 also includes a main outlet connected to the diverter channel 11, and the hot runner system also includes a second hot nozzle 6 connected to the diverter channel 11 through the main outlet. The second hot nozzle 6 is provided with a second channel 61 and a second inlet and a second outlet connected through the second channel 61. The second inlet is connected to the main outlet, and the second outlet is away from the second inlet. The fluid flows from the second manifold 5 through the first inlet of the first hot nozzle 2 into the first channel 21, enters the transition channel 31 from the first outlet of the first hot nozzle 2, enters the diverter channel 11 through the main inlet of the first manifold 1, flows from the main outlet through the second inlet of the second hot nozzle 6 into the second channel 61, and finally flows out from the second outlet.

[0045] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0046] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of this application. They are not intended to limit the scope of protection of this application. Any equivalent implementation methods or changes that do not deviate from the technical spirit of this application should be included in the scope of protection of this application.

Claims

1. A hot runner system, characterized in that: include: a first diverter plate, provided with a diverter channel and a main inlet communicating with the diverter channel; a first hot nozzle, provided with a first flow channel and a first outlet communicating with the first flow channel; The angle adjustment member can selectively connect the first hot nozzle and the first diverter plate. The angle adjustment member is provided with a plane, an inclined surface and a transition flow channel connecting the plane and the inclined surface. The plane and the inclined surface are set at an acute angle. The main inlet of the first diverter plate and the first outlet of the first hot nozzle are connected through the transition flow channel.

2. The hot runner system according to claim 1, characterized in that: The angle adjustment member is connected to the first hot nozzle at one end to form a first accommodating cavity communicated with the transition flow channel. The first hot nozzle includes a hot nozzle body and a docking nozzle tip. The hot runner system also includes a docking member connected to the angle adjustment member. The docking member is at least partially arranged in the first accommodating cavity and is sleeved on the docking nozzle tip. The docking nozzle tip is communicated with the transition flow channel.

3. The hot runner system according to claim 2, characterized in that: The hot nozzle body is provided with a first branch channel and a second accommodating cavity that are connected to each other, the docking nozzle tip is provided with a second branch channel, and the docking nozzle tip portion is arranged in the second accommodating cavity, so that the first branch channel and the second branch channel are connected to form a first flow channel.

4. The hot runner system according to claim 3, characterized in that: The inner diameter of the second accommodating cavity is greater than the inner diameter of the first branch channel to form a step at the connection between the two, and one end of the docking nozzle tip abuts against the step formed by the second accommodating cavity and the first branch channel.

5. The hot runner system according to claim 4, characterized in that: The butt joint nozzle tip is formed with a step portion, and the first hot nozzle further includes a cover cap, which is sleeved on the outside of the butt joint nozzle tip and abuts against the step portion, and the cover cap is connected to the hot nozzle body via one end of the butt joint nozzle tip.

6. The hot runner system according to claim 4, characterized in that: The inner diameter of the first branch channel close to one end of the second branch channel is equal to the inner diameter of the second branch channel close to one end of the first branch channel.

7. The hot runner system according to claim 2, characterized in that: The inner diameter of the first accommodating cavity is greater than the inner diameter of the transition flow channel, and the inner wall of the first accommodating cavity is provided with an internal thread, and the outside of the docking piece is provided with an external thread. The docking piece is threadedly connected to the first accommodating cavity and one end of the docking piece abuts against the step formed by the first accommodating cavity and the transition flow channel.

8. The hot runner system according to claim 2, characterized in that: The first diverter plate has a first surface with the main incident port, the plane of the angle adjustment member abuts against the first surface, and the first accommodating cavity is arranged near one end of the inclined surface.

9. The hot runner system according to claim 8, characterized in that: A first giveway cavity is provided at the main inlet of the first diverter plate, and a second giveway cavity is provided at one end of the transition channel close to the plane. The hot runner system also includes an anti-overflow ring provided in the first giveway cavity and the second giveway cavity. The inner diameter of the diverter channel = the inner diameter of the transition channel = the inner diameter of the anti-overflow ring.

10. The hot runner system according to claim 1, wherein: The first diverter plate further includes a main outlet communicated with the diverter flow channel, and the hot runner system further includes a second hot nozzle communicated with the diverter flow channel through the main outlet.

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