Splitter plate and hot runner system
By splitting the manifold into multiple sections and using adjustable connection components, the positioning accuracy problem caused by thermal expansion of the manifold is solved, and higher positioning accuracy is achieved.
Patent Information
- Application Number
- CN202422900484.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-27
AI Technical Summary
When the manifold is long, the distance between the positioning center and the hot nozzle is far, which makes it difficult to accurately position the nozzle after thermal expansion.
The manifold plate is split into a first and a second manifold plate, which are connected by a connecting assembly, and a positioning center and an adjustable transition channel are set to reduce the influence of thermal expansion on positioning accuracy.
The segmented design and adjustable connection reduce the impact of thermal expansion on positioning accuracy and improve positioning accuracy.
Smart Images
Figure CN223407367U_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 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. Utility Model Content
[0003] The purpose of this 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 purposes of the above-mentioned utility model, one 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 flow channel connected to the first flow channel, the second connecting member is provided with a second transition flow 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 flow channel close to one end of the first diverter plate is matched with 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, the inner diameter of the first transition channel at the end facing away from the first diverter plate gradually increases from the first diverter plate to the second diverter plate until it is consistent with the inner diameter of the second transition channel at the end facing away from the second diverter plate.
[0008] In one embodiment of the present application, a first give way cavity is provided at one end of the first diverter plate near the first connecting piece, and a second give 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 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.
[0009] In one embodiment of the present application, the second diverter plate is provided with a third give way cavity near one end of the second connecting piece, and the second connecting piece is provided with a fourth give way cavity near one end of the second diverter plate. The diverter plate also includes a second anti-overflow ring arranged in the third give way cavity and the fourth give 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.
[0010] In one embodiment of the present application, the connecting assembly further 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 portions at both ends of the second fastening ring opening are placed inside the C-shaped fastening lock.
[0013] One 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 in 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, which 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 diverter plates is adjustable, which enables the multiple sections of diverter plates to 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 structural schematic diagram of the diverter plate in an 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 the CC line.
[0021] Figure 6 yes Figure 5 Enlarged view of point D in the middle.
[0022] Figure 7 It is a structural diagram 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 port; 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 member; 311. First transition channel; 312. Second clearance cavity; 32. Second connecting member; 321. Second transition channel; 322. Fourth clearance cavity; 33. Fastener; 331. First fastening ring; 332. Second fastening ring; 3321. Clamping portion; 333. Fastening lock;
[0027] 41. First anti-overflow ring; 42. Second anti-overflow ring;
[0028] 5. Fixed block. DETAILED DESCRIPTION
[0029] 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.
[0030] 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.
[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 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.
[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 merely used to distinguish these described objects from each other. For example, a first diverter plate may be referred to as a second diverter plate, and similarly, a second diverter plate may be referred to as a first diverter plate without departing from the scope of protection of this application.
[0034] The embodiment of the present application 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 the 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 can 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 can 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 (first diverter plate 1 / second diverter plate 2) is smaller. The error between the positioning center and the main feed port 13 / through hole 23 caused by thermal expansion after the diverter plate 10 is heated 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. The error caused by thermal expansion of the diverter plate 10 as a whole (first diverter plate 1 and 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 1 is provided with a first flow channel 11, the second manifold 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 manifold plates 2 are connected to both ends of the first manifold plate 1. The following description will be made based on the cooperation between the first manifold plate 1 and one of the second manifold plates 2.
[0038] In one embodiment of the present application, Figure 3 、 4 In the figure, the connecting assembly 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 flow channel 311 connected to the first flow channel 11, and the second connecting member 32 is provided with a second transition flow channel 321 connected to the second flow channel 21. The second connecting member 32 is sleeved on the outside of the first connecting member 31, and the inner diameter of the second transition flow channel 321 close to one end of the first diverter plate 1 is matched with 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 connector 31 is secured to the first manifold plate 1 via fasteners 33, such as bolts. The second connector 32 is also secured to the second manifold plate 2 via fasteners 33, such as bolts. The first transition channel 311 and the second transition channel 321 combine to form the transition channel of the connection assembly 3. The second connector 32 is sleeved over the first connector 31, and the inner and outer diameters of the joint between the two components match, allowing the first connector 31 and the second connector 32 to move axially, thereby adjusting the distance between the first manifold plate 1 and the second manifold plate 2. The length of the second transition channel 321 varies with the distance between the first manifold plate 1 and the second manifold plate 2.
[0040] In one embodiment of the present application, the inner diameter of the first transition channel 311 at the end facing away from the first manifold plate 1 gradually increases toward the second manifold plate 2 until it matches the inner diameter of the second transition channel 321 at the end facing away from the second manifold plate 2. By designing the inner diameter of the first transition channel 311 to gradually increase near the end of the second transition channel 321, and with the inner diameter at the extreme end of the first transition channel 311 being substantially the same as that of the second transition channel 321, this prevents the formation of a step at the junction of the first and second transition channels 311, 321, which could lead to melt accumulation at the corners of the step.
[0041] In one embodiment of the present application, the first diverter plate 1 is provided with a first giveway cavity 14 at one end near the first connecting member 31, and the first connecting member 31 is provided with a second giveway cavity 312 at one end near the first diverter plate 1. The diverter plate 10 also includes a first anti-overflow ring 41 arranged in the first giveway cavity 14 and the second giveway cavity 312. The inner diameter of the first flow channel 11 = the inner diameter of the first transition flow channel 311 near the end of the first diverter plate 1 = the inner diameter of the first anti-overflow ring 41.
[0042] Because the first manifold plate 1 and the first connector 31 are connected by fasteners 33, their ends are in surface contact. Positioning is achieved solely through the fasteners 33, which can easily cause the first flow channel 11 and the first transition flow channel 311 to intersect due to inaccurate positioning. A first anti-overflow ring 41 is provided between the first manifold plate 1 and the first connector 31. 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. This ring prevents the melt from flowing out of the gap between the first manifold plate 1 and the first connector 31, and also provides radial positioning.
[0043] In one embodiment of the present application, the second diverter plate 2 is provided with a third make way cavity 24 near one end of the second connecting member 32, and the second connecting member 32 is provided with a fourth make way cavity 322 near one end of 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. 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 2 and the second connector 32 are in surface contact, allowing the second flow channel 21 and the second transition channel 321 to easily intersect. A second anti-overflow ring 42 is positioned between the second manifold 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 2, and the other end is inserted into the fourth clearance cavity 322 of the second connector 32. This prevents the melt from escaping through the gap between the second manifold 2 and the second connector 32, while also providing radial positioning.
[0045] In one embodiment of the present application, Figure 5 、 6 In the embodiment, the connection assembly 3 also includes a fastener 33, which includes a first fastening ring 331 and a second fastening ring 332 that 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 to clamp the second connection member 32 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, and 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, and the fastener 33 is locked by the fastening lock 333.
[0047] In one embodiment of the present application, Figure 6In the figure, the cross-section of the fastening lock 333 is C-shaped, and the clamping portions 3321 at both ends of the opening of the second fastening ring 332 are placed within the C-shaped fastening lock 333. Specifically, the opening of the second fastening ring 332 gradually increases in size 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 the larger locking width of the fastening lock 333 receives the two clamping portions 3321 from the smaller opening end of the second fastening ring 332 into the fastening lock 333, and the fastening lock 333 moves toward the second diverter plate 2, gradually locking the second fastening ring 332.
[0048] Of course, the direction in which the opening of the second fastening ring 332 becomes larger may also be from the second diverter plate 2 to the first diverter plate 1 , and the change in the locking width of the fastening lock 333 is consistent with the change in the opening of the second fastening ring 332 .
[0049] In one embodiment of the present application, Figure 1 In the embodiment, the manifold 10 further includes a fixing block 5, which is arranged on one side of the manifold 10 and can be detachably connected to the first manifold 1 and the second manifold 2, so as to facilitate the transportation of the manifold 10. After the manifold 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 in the middle and the second diverter plate 2 on the left, but 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 passes through 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 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.
[0052] 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 manifold, 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, 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.
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 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 flow channel connected to the first flow channel, and the second connecting member is provided with a second transition flow channel connected to the second flow channel. The second connecting member is sleeved on the outside of the first connecting member, and the inner diameter of the second transition flow channel close to one end of the first diverter plate is matched with 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 manifold according to claim 3, characterized in that: 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 manifold 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 manifold according to claim 3, characterized in that: The second diverter plate is provided with a third give way cavity near one end of the second connecting piece, and the second connecting piece is provided with a fourth give way cavity near one end of the second diverter plate. The diverter plate also includes a second anti-overflow ring arranged in the third give way cavity and the fourth give 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 that 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 manifold according to claim 7, characterized in that: The two ends of the second fastening ring close to the opening are bent circumferentially away from the opening to form a clamping portion. 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 manifold 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 second fastening ring opening are placed inside the C-shaped fastening lock.
10. A hot runner system, characterized in that: The invention comprises the manifold plate according to any one of claims 1 to 9 and a hot nozzle connected to the manifold plate.