Splitter plate and hot runner system
By splitting the shunt plate in the hot runner system into two parts and connecting with adjustable connection components, the positioning error problem caused by thermal expansion of the long shunt plate is solved, and more accurate positioning is achieved.
Patent Information
- Application Number
- CN202411712069.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-02-07
AI Technical Summary
In the hot runner system, the long shunt plate has a large distance error between the positioning center and the hot nozzle due to thermal expansion, making it difficult to achieve accurate positioning.
The shunt plate is split into the first shunt plate and the second shunt plate, and connected by an adjustable connecting component, reducing the size of the single shunt plate and reducing the impact of thermal expansion on positioning accuracy.
By disassembling the splitter plate and using adjustable connection components, the impact of thermal expansion on positioning accuracy is reduced, and more precise positioning is achieved.
Smart Images
Figure CN119388689A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of hot runner technology, and in particular to a manifold and a hot runner system including the manifold. Background Art
[0002] In the hot runner system, when the size of the manifold is long, the distance between the positioning center on the manifold and the hot nozzle is far. After the manifold is heated, due to thermal expansion, the distance error between the positioning center and the hot nozzle is large, making it difficult to accurately position. Summary of the invention
[0003] The purpose of the present application is to provide a diverter plate, which is split into a first diverter plate and a second diverter plate, and the two are connected by a connecting component, thereby reducing the size of a single diverter plate (first diverter plate / second diverter plate) and reducing the impact of thermal expansion on positioning accuracy.
[0004] In order to achieve one of the above-mentioned purposes of the invention, an embodiment of the present application provides a diverter plate, including a first diverter plate, a second diverter plate and a connecting assembly connecting the first diverter plate and the second diverter plate, the first diverter plate and the second diverter plate are both provided with a positioning center, the first diverter plate is provided with a main feed port, and the second diverter plate is provided with a through hole for connecting a hot nozzle, the main feed port is not coaxially arranged with the positioning center on the first diverter plate, and / or the through hole is not coaxially arranged with the positioning center on the second diverter plate; the connecting assembly can adjust the distance between the first diverter plate and the second diverter plate.
[0005] In one embodiment of the present application, the first manifold plate is provided with a first flow channel, the second manifold plate is provided with a second flow channel, and the connecting assembly is provided with a transition flow channel connecting the first flow channel and the second flow channel.
[0006] In one embodiment of the present application, the connecting assembly includes a first connecting member fixed to the first diverter plate and a second connecting member fixed to the second diverter plate, the first connecting member is provided with a first transition channel connected to the first flow channel, the second connecting member is provided with a second transition channel connected to the second flow channel, the second connecting member is sleeved outside the first connecting member, and the inner diameter of the second transition channel close to one end of the first diverter plate matches the outer diameter of the first connecting member, so that the first connecting member and the second connecting member can produce relative movement in their axial directions.
[0007] In one embodiment of the present application, in the direction from the first manifold plate to the second manifold plate, the inner diameter of the first transition channel away from the first manifold plate gradually increases until it is consistent with the inner diameter of the second transition channel away from the second manifold plate.
[0008] In one embodiment of the present application, a first make way cavity is provided at one end of the first diverter plate near the first connecting piece, a second make way cavity is provided at one end of the first connecting piece near the first diverter plate, the diverter plate also includes a first anti-overflow ring provided in the first make way cavity and the second make way cavity, and the inner diameter of the first flow channel = the inner diameter of the first transition flow channel near one end of the first diverter plate = the inner diameter of the first anti-overflow ring.
[0009] In one embodiment of the present application, a third make way cavity is provided at one end of the second diverter plate near the second connecting piece, a fourth make way cavity is provided at one end of the second connecting piece near the second diverter plate, the diverter plate also includes a second anti-overflow ring arranged in the third make way cavity and the fourth make way cavity, and the inner diameter of the second flow channel = the inner diameter of the second transition flow channel near one end of the second diverter plate = the inner diameter of the second anti-overflow ring.
[0010] In one embodiment of the present application, the connecting assembly also includes a fastener, which includes a first fastening ring and a second fastening ring which are sequentially sleeved on the outside of the second connecting member, the first fastening ring and the second fastening ring are both open rings, and the opening of the first fastening ring and the opening of the second fastening ring are staggered in the circumferential direction.
[0011] In one embodiment of the present application, the two ends of the second fastening ring close to the opening are bent circumferentially away from the opening to form a clamping portion, and the fastener also includes a fastening lock, which locks the clamping portions at both ends of the opening of the second fastening ring.
[0012] In one embodiment of the present application, the cross section of the fastening lock is C-shaped, and the clamping parts at both ends of the opening of the second fastening ring are placed inside the C-shaped fastening lock.
[0013] An embodiment of the present application further provides a hot runner system, comprising the aforementioned manifold plate and a hot nozzle connected to the manifold plate.
[0014] One or more technical solutions provided by this application have at least the following technical effects or advantages:
[0015] The diverter plate provided in the present application includes a separate first diverter plate and a second diverter plate, the first diverter plate and the second diverter plate are connected by a connecting component, and a positioning center is provided on the first diverter plate and the second diverter plate, that is, the present application divides the diverter plate into multiple sections, and the distance between the multiple sections of the diverter plate is adjustable, so that the multiple sections of the diverter plate can be positioned separately, and after being divided into multiple sections, the length of any section of the diverter plate changes little due to thermal expansion, and the positioning is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the diverter plate in the embodiment of the present application.
[0017] Figure 2 yes Figure 1 Front view of the middle manifold.
[0018] Figure 3 yes Figure 2 Schematic cross-sectional view along line AA.
[0019] Figure 4 yes Figure 3 Enlarged view of point B in the middle.
[0020] Figure 5 yes Figure 2 Schematic cross-sectional view along line CC.
[0021] Figure 6 yes Figure 5 Enlarged view of point D in the middle.
[0022] Figure 7 It is a schematic diagram of the structure of the hot runner system in an embodiment of the present application.
[0023] 10. Manifold; 20. Hot nozzle;
[0024] 1. first manifold; 11. first flow channel; 12. first positioning member; 13. main feed inlet; 14. first clearance cavity;
[0025] 2. second manifold; 21. second flow channel; 22. second positioning member; 23. through hole; 24. third clearance cavity;
[0026] 3. Connecting assembly; 31. First connecting piece; 311. First transition channel; 312. Second clearance cavity; 32. Second connecting piece; 321. Second transition channel; 322. Fourth clearance cavity; 33. Fastener; 331. First fastening ring; 332. Second fastening ring; 3321. Clamping part; 333. Fastening lock;
[0027] 41. a first anti-overflow ring; 42. a second anti-overflow ring;
[0028] 5. Fixed block. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0030] Terms such as "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used herein to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms of spatial relative positions may be intended to include different orientations of the device in use or operation other than the orientation shown in the drawings.
[0031] 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.
[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0033] Furthermore, it should be understood that although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other. For example, a first splitter plate may be referred to as a second splitter plate, and similarly, a second splitter plate may also be referred to as a first splitter plate, without departing from the scope of protection of the present application.
[0034] The present application embodiment provides a diverter plate 10, such as Figures 1 to 6 As shown, it includes a first diverter plate 1, a second diverter plate 2 and a connecting component 3 connecting the first diverter plate 1 and the second diverter plate 2, the first diverter plate 1 and the second diverter plate 2 are both provided with a positioning center, the first diverter plate 1 is provided with a main feed port 13, the second diverter plate 2 is provided with a through hole 23 for connecting a hot nozzle 20, the main feed port 13 is not coaxially arranged with the positioning center on the first diverter plate 1, and / or the through hole 23 is not coaxially arranged with the positioning center on the second diverter plate 2; the connecting component 3 can adjust the distance between the first diverter plate 1 and the second diverter plate 2.
[0035] In the present application, the diverter plate 10 is divided into at least two, namely, a first diverter plate 1 and a second diverter plate 2, and a positioning center for positioning is provided on each diverter plate 10, such as Figure 1In the figure, a first positioning member 12 is provided at the positioning center of the first diverter plate 1, and the first positioning member 12 is coaxially arranged with the positioning center on the first diverter plate 1 (the positioning center on the first diverter plate 1 and the first positioning member 12 may also be regarded as the same); a second positioning member 22 is provided at the positioning center of the second diverter plate 2, and the second positioning member 22 is coaxially arranged with the positioning center on the second diverter plate 2 (the positioning center on the second diverter plate 2 and the second positioning member 22 may also be regarded as the same).
[0036] The first positioning member 12 and the second positioning member 22 are both used for positioning when the manifold 10 is installed in the hot runner system. Since the manifold 10 is divided into two or more parts, such as Figure 1 In the figure, the diverter plate 10 includes two second diverter plates 2, and the size of a single small diverter plate (the first diverter plate 1 / the second diverter plate 2) is smaller. The error between the positioning center and the main feed port 13 / through hole 23 caused by the thermal expansion of the diverter plate 10 after heating is smaller, and the positioning is more accurate; and the connecting component 3 can adjust the distance between the first diverter plate 1 and the second diverter plate 2, and the error caused by the thermal expansion of the diverter plate 10 as a whole (the first diverter plate 1 and the second diverter plate 2) when heated can be adjusted through the connecting component 3.
[0037] In one embodiment of the present application, the first manifold plate 1 is provided with a first flow channel 11, the second manifold plate 2 is provided with a second flow channel 21, and the connecting assembly 3 is provided with a transition flow channel connecting the first flow channel 11 and the second flow channel 21. Figure 1 In the embodiment, two second diverter plates 2 are connected to both ends of the first diverter plate 1. The following description will be based on the cooperation between the first diverter plate 1 and one of the second diverter plates 2.
[0038] In one embodiment of the present application, Figure 3 , 4 In the figure, the connecting component 3 includes a first connecting member 31 fixed to the first diverter plate 1 and a second connecting member 32 fixed to the second diverter plate 2. The first connecting member 31 is provided with a first transition channel 311 connected to the first channel 11, and the second connecting member 32 is provided with a second transition channel 321 connected to the second channel 21. The second connecting member 32 is sleeved outside the first connecting member 31, and the inner diameter of the second transition channel 321 close to one end of the first diverter plate 1 matches the outer diameter of the first connecting member 31, so that the first connecting member 31 and the second connecting member 32 can produce relative movement in the axial direction of the two.
[0039] The first connecting member 31 is fixed to the first manifold plate 1 by means of fasteners 33 such as bolts, and the second connecting member 32 is also fixed to the second manifold plate 2 by means of fasteners 33 such as bolts, and the first transition channel 311 and the second transition channel 321 are combined to form a transition channel of the connecting assembly 3. The second connecting member 32 is sleeved outside the first connecting member 31, and the inner and outer diameters of the joint of the two are matched, so that the first connecting member 31 and the second connecting member 32 can move in the axial direction, thereby adjusting the distance between the first manifold plate 1 and the second manifold plate 2, and the length of the second transition channel 321 changes with the distance between the first manifold plate 1 and the second manifold plate 2.
[0040] In one embodiment of the present application, in the direction from the first manifold plate 1 to the second manifold plate 2, the inner diameter of the first transition channel 311 at the end facing away from the first manifold plate 1 gradually increases until it is consistent with the inner diameter of the second transition channel 321 at the end facing away from the second manifold plate 2. The inner diameter of the first transition channel 311 at the end close to the second transition channel 321 is designed to gradually increase, and the inner diameter of the end of the first transition channel 311 is basically consistent with the second transition channel 321, which can avoid the formation of a step at the junction of the first transition channel 311 and the second transition channel 321, and the accumulation of melt at the corner of the step.
[0041] In one embodiment of the present application, a first make way cavity 14 is provided at one end of the first diverter plate 1 close to the first connecting piece 31, and a second make way cavity 312 is provided at one end of the first connecting piece 31 close to the first diverter plate 1. The diverter plate 10 also includes a first anti-overflow ring 41 arranged in the first make way cavity 14 and the second make way cavity 312, and the inner diameter of the first flow channel 11 = the inner diameter of the first transition flow channel 311 close to one end of the first diverter plate 1 = the inner diameter of the first anti-overflow ring 41.
[0042] Since the first manifold plate 1 and the first connector 31 are connected by the fastener 33, the ends of the two are in surface contact, and the first flow channel 11 and the first transition flow channel 311 are easily intertwined due to inaccurate positioning. A first anti-overflow ring 41 is arranged between the first manifold plate 1 and the first connector 31, and one end of the first anti-overflow ring 41 is inserted into the first clearance cavity 14 of the first manifold plate 1, and the other end is inserted into the second clearance cavity 312 of the first connector 31. On the one hand, it can prevent the melt from flowing out of the gap between the first manifold plate 1 and the first connector 31, and on the other hand, it can play a positioning role in the radial direction.
[0043] In one embodiment of the present application, a third make way cavity 24 is provided at one end of the second diverter plate 2 near the second connecting piece 32, and a fourth make way cavity 322 is provided at one end of the second connecting piece 32 near the second diverter plate 2. The diverter plate 10 also includes a second anti-overflow ring 42 arranged in the third make way cavity 24 and the fourth make way cavity 322, and the inner diameter of the second flow channel 21 = the inner diameter of the second transition flow channel 321 near one end of the second diverter plate 2 = the inner diameter of the second anti-overflow ring 42.
[0044] Similarly, the ends of the second manifold plate 2 and the second connector 32 are also in surface contact, and the second flow channel 21 and the second transition flow channel 321 are also easily interlaced. A second anti-overflow ring 42 is arranged between the second manifold plate 2 and the second connector 32, one end of the second anti-overflow ring 42 is inserted into the third clearance cavity 24 of the second manifold plate 2, and the other end is inserted into the fourth clearance cavity 322 of the second connector 32. On the one hand, it can prevent the melt from flowing out of the gap between the second manifold plate 2 and the second connector 32, and on the other hand, it can play a positioning role in the radial direction.
[0045] In one embodiment of the present application, Figure 5 , 6 In the embodiment, the connection assembly 3 also includes a fastener 33, and the fastener 33 includes a first fastening ring 331 and a second fastening ring 332 which are sequentially sleeved on the outside of the second connection member 32. The first fastening ring 331 and the second fastening ring 332 are both open rings, and the opening of the first fastening ring 331 and the opening of the second fastening ring 332 are staggered in the circumferential direction. The fastener 33 is used to strengthen the connection between the first connection member 31 and the second connection member 32 to prevent the two from moving arbitrarily in the axial direction. The first fastening ring 331 and the second fastening ring 332 are both open, so that the second connection member 32 can be clamped into the annular structure from the opening. The openings of the first fastening ring 331 and the second fastening ring 332 are staggered, so that the outside of the second connection member 32 has a contraction force in the circumferential direction.
[0046] In one embodiment of the present application, the two ends of the second fastening ring 332 close to the opening are bent along the circumferential direction away from the opening to form a clamping portion 3321. The fastener 33 also includes a fastening lock 333, which locks the clamping portions 3321 at both ends of the opening of the second fastening ring 332. The fastener 33 is locked by the fastening lock 333.
[0047] In one embodiment of the present application, Figure 6In the embodiment, the cross section of the fastening lock 333 is C-shaped, and the clamping parts 3321 at both ends of the opening of the second fastening ring 332 are placed inside the C-shaped fastening lock 333. Specifically, the opening of the second fastening ring 332 gradually increases from the first diverter plate 1 to the second diverter plate 2, and the locking width of the fastening lock 333 also gradually increases. When the fastening lock 333 is locked, the end with a larger locking width of the fastening lock 333 receives the two clamping parts 3321 from the end with a smaller opening of the second fastening ring 332 into the fastening lock 333, and the fastening lock 333 moves toward the direction of the second diverter plate 2, gradually locking the second fastening ring 332.
[0048] Of course, the opening of the second fastening ring 332 may also increase in a direction from the second manifold plate 2 to the first manifold plate 1 , and the locking width change of the fastening lock 333 is consistent with the opening change of the second fastening ring 332 .
[0049] In one embodiment of the present application, Figure 1 In the embodiment, the splitter plate 10 further includes a fixing block 5, which is disposed on one side of the splitter plate 10 and can be detachably connected to the first splitter plate 1 and the second splitter plate 2, so as to facilitate the transportation of the splitter plate 10. After the splitter plate 10 is transported to the destination, it can be disassembled and connected through the connecting assembly 3 to adjust the distance. Figure 1 A fixing block 5 is provided at the connection between the first diverter plate 1 and the second diverter plate 2 on the left, while no fixing block 5 is provided at the connection between the first diverter plate 1 and the second diverter plate 2 on the right.
[0050] An embodiment of the present application also provides a hot runner system, including the aforementioned diverter plate 10 and a hot nozzle 20 connected to the aforementioned diverter plate 10, the through hole 23 of the second diverter plate 2 penetrates the second diverter plate 2 and is connected to the second flow channel 21, the hot nozzle 20 is provided with a hot nozzle 20 flow channel, the hot nozzle 20 passes through the through hole 23, and the hot nozzle 20 flow channel is connected to the second flow channel 21.
[0051] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
[0052] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present application should be included in the scope of protection of the present application.
Claims
1. A splitter plate, characterized in that: It includes a first diverter plate, a second diverter plate and a connecting assembly connecting the first diverter plate and the second diverter plate, the first diverter plate and the second diverter plate are both provided with a positioning center, the first diverter plate is provided with a main feed port, the second diverter plate is provided with a through hole for connecting a hot nozzle, the main feed port is not coaxially arranged with the positioning center on the first diverter plate, and / or the through hole is not coaxially arranged with the positioning center on the second diverter plate; the connecting assembly can adjust the distance between the first diverter plate and the second diverter plate.
2. The manifold according to claim 1, characterized in that: The first manifold plate is provided with a first flow channel, the second manifold plate is provided with a second flow channel, and the connecting assembly is provided with a transition flow channel connecting the first flow channel and the second flow channel.
3. The manifold according to claim 2, characterized in that: The connecting component includes a first connecting member fixed to the first diverter plate and a second connecting member fixed to the second diverter plate, the first connecting member is provided with a first transition channel connected to the first channel, the second connecting member is provided with a second transition channel connected to the second channel, the second connecting member is sleeved outside the first connecting member, and the inner diameter of the second transition channel close to one end of the first diverter plate matches the outer diameter of the first connecting member, so that the first connecting member and the second connecting member can produce relative movement in their axial directions.
4. The splitter plate according to claim 3, characterized in that: In the direction from the first manifold plate to the second manifold plate, the inner diameter of the first transition channel at the end away from the first manifold plate gradually increases until it is consistent with the inner diameter of the second transition channel at the end away from the second manifold plate.
5. The splitter plate according to claim 4, characterized in that: The first diverter plate is provided with a first give-way cavity near one end of the first connecting piece, and the first connecting piece is provided with a second give-way cavity near one end of the first diverter plate. The diverter plate also includes a first anti-overflow ring arranged in the first give-way cavity and the second give-way cavity. The inner diameter of the first flow channel = the inner diameter of the first transition flow channel near one end of the first diverter plate = the inner diameter of the first anti-overflow ring.
6. The splitter plate according to claim 3, characterized in that: The second diverter plate is provided with a third make way cavity near one end of the second connecting piece, and the second connecting piece is provided with a fourth make way cavity near one end of the second diverter plate. The diverter plate also includes a second anti-overflow ring arranged in the third make way cavity and the fourth make way cavity. The inner diameter of the second flow channel = the inner diameter of the second transition flow channel near one end of the second diverter plate = the inner diameter of the second anti-overflow ring.
7. The manifold according to claim 3, characterized in that: The connecting assembly also includes a fastener, which includes a first fastening ring and a second fastening ring which are sequentially sleeved on the outside of the second connecting member, the first fastening ring and the second fastening ring are both open rings, and the opening of the first fastening ring and the opening of the second fastening ring are staggered in the circumferential direction.
8. The splitter plate according to claim 7, characterized in that: The two ends of the second fastening ring close to the opening are respectively bent along the circumferential direction away from the opening to form a clamping portion, and the fastener also includes a fastening lock, which locks the clamping portions at both ends of the opening of the second fastening ring.
9. The splitter plate according to claim 8, characterized in that: The cross section of the fastening lock is C-shaped, and the clamping parts at both ends of the opening of the second fastening ring are placed inside the C-shaped fastening lock.
10. A hot runner system, characterized in that: It comprises the manifold plate as claimed in claims 1 to 9 and a hot nozzle connected to the manifold plate.