Inclined top demolding mechanism of motorcycle seat cask injection mold
By introducing a self-lubricating oil seat and guide sleeve into the inclined ejector mechanism of the motorcycle seat bucket injection mold, combined with the matching design of the inclined ejector head and the lower mold cavity, the problems of large friction area and poor lubrication are solved, achieving efficient demolding and improved product quality.
Patent Information
- Application Number
- CN202520467339.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In existing motorcycle seat bucket injection molds, the inclined ejector mechanism moves linearly, resulting in a large friction area, severe wear, and poor lubrication, which affects demolding efficiency and product quality.
A slanted ejector mechanism for a motorcycle seat bucket injection mold was designed. It adopts a self-lubricating oil seat and guide sleeve design, combined with the matching top groove of the slanted ejector head and the bottom of the lower mold cavity, to ensure that the slanted ejector head fits snugly with the lower mold cavity, reducing wear. The position of the slanted ejector rod is fixed by a fixing pin, providing stability and sufficient movement space.
It achieves efficient demolding, reduces wear, improves equipment life and product quality, reduces labor intensity, and enhances demolding efficiency.
Smart Images

Figure CN223877459U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of injection mold demolding technology, and relates to a slanted ejector demolding mechanism for motorcycle seat barrel injection molds. Background Technology
[0002] The motorcycle seat bucket is an important component of electric vehicles, serving both storage and seating functions. Electric vehicle seat buckets not only ensure riding comfort but also meet daily storage needs, thus enhancing the overall riding experience. Therefore, the seat bucket is manufactured using injection molding. The existing technology for combining the seat bucket with the upper mold is shown in the attached figure. Figure 7 As shown, due to the complex structure of the seat barrel, the presence of recessed edges and undercut structures, demolding is inconvenient. A common demolding method is to use a slanted ejector, such as the slanted ejector mechanism provided in patent application CN202420394985.X. This mechanism includes a template with a cavity, a slanted guide hole, a slanted ejector groove connected to the cavity, a vertical surface, a slanted ejector pin sliding through the guide hole, a slanted ejector pin with a slanted ejector block sliding within the slanted ejector groove, a horizontal sliding groove within the slanted ejector block, a sliding block with a side push surface for contacting the product on one side, and a guide push surface sliding on the vertical surface on the other side. This design allows the product to be pre-separated from the cavity and the slanted ejector pin when ejected by the slanted ejector pin, thus preventing the product from sticking to the side ejector pin or the cavity and becoming unable to detach.
[0003] The demolding solution disclosed above has the following drawbacks when applied to seat barrel demolding: the inclined ejector moves linearly and tilts, resulting in a larger friction area, severe wear, and ineffective lubrication between the ejector and the slider. Therefore, we designed an inclined ejector demolding mechanism for motorcycle seat barrel injection molds. Summary of the Invention
[0004] The purpose of this invention is to provide a slanted ejector mechanism for motorcycle seat bucket injection molds to solve the problems mentioned in the background art.
[0005] The utility model discloses a motorcycle seat bucket injection mold inclined ejection mechanism, including seat bucket upper die concrete, seat bucket lower die concrete and mould base, the bottom of seat bucket upper die concrete is provided with the integrative upper mould core, the top of seat bucket lower die concrete is provided with the integrative lower mould cavity, and the lower mould cavity corresponds the upper mould core and makes seat bucket upper die concrete and seat bucket lower die concrete close die connection, the mould base is fastened in the bottom end of seat bucket lower die concrete through bolt, still include inclined ejection assembly, the inclined ejection assembly includes inclined head, inclined rod seat, round inclined rod and guide sliding sleeve, the inclined rod seat is installed at the top of mould base through the rod plate, the top of inclined rod seat is connected with the rod connecting seat, the round inclined rod is movably arranged at the top end of rod connecting seat through universal joint head, one end of round inclined rod is connected with inclined head, the guide sliding sleeve is movably arranged at the rod body part of round inclined rod and can move along round inclined rod, the side of guide sliding sleeve is provided with self-lubricating oil seat, the inside of guide sliding sleeve is provided with lubricating oil path and lubricating oil path is communicated with the oil port part of self-lubricating oil seat.
[0006] In the above-mentioned motorcycle seat bucket injection mold inclined ejection mechanism, the bottom of the lower mold cavity is provided with a top groove position matching the shape of the inclined head, and both ends of the top groove position are provided with integrally formed round contact points. The inclined head is in strip structure, and both ends of the inclined head are provided with round flanges matching the round contact points. The purpose of this arrangement is that the shape of the top groove position at the bottom of the lower mold cavity is the same as the shape of the inclined head, so that the inclined head can perfectly fit the top groove position at the bottom of the lower mold cavity, reducing the influence of the concave-convex surface of the inclined head on the space of the lower mold cavity. This can ensure the quality and qualification rate of the seat bucket, thereby realizing the demand for efficient demolding.
[0007] In the above-mentioned motorcycle seat bucket injection mold inclined ejection mechanism, the inclined ejection assembly further includes a fixed pin located on the side of the rod connecting seat, the fixed pin passes through the universal joint head connected with the round inclined rod and is fastened on the side of the rod connecting seat through a nut. The purpose of this arrangement is to use the fixing effect of the fixed pin to fix the position of the round inclined rod, and the round inclined rod after changing the angle has good stability, reducing the relative motion interference during mold opening.
[0008] In the above-mentioned motorcycle seat bucket injection mold inclined ejection mechanism, a movement interval is provided between the seat bucket lower die concrete and the mold base, and the movement stroke of the rod plate in the movement interval is not less than the cavity depth of the lower mold cavity. The purpose of this arrangement is to use the movement interval to realize the inclined ejection operation of the rod plate under the action of the driving source, and to ensure sufficient space for the inclined movement, without the phenomenon of spade glue or interference with other components.
[0009] In the motorcycle seat bucket injection mold inclined top demolding mechanism, the upper mold of the seat bucket is provided with a lifting ring on each side in a threaded manner, and the lower mold of the seat bucket is provided with a lifting ring on each side in a threaded manner.
[0010] Compared with the prior art, the motorcycle seat bucket injection mold inclined top demolding mechanism has the advantages that: the self-lubricating oil seat is arranged on the side of the guide sleeve, the lubricating oil channel is arranged in the guide sleeve and communicates with the oil outlet part of the self-lubricating oil seat, so that the guide sleeve has good lubrication effect when moving relative to the round inclined top rod, the relative wear of the round inclined top rod and the guide sleeve is greatly reduced, and the service life of the two is improved; the shape of the top groove position at the bottom of the lower mold cavity is the same as that of the inclined top head, so that the inclined top head can perfectly fit the top groove position at the bottom of the lower mold cavity, the influence of the concave-convex surface of the inclined top head on the space of the lower mold cavity is reduced, the quality and the qualification rate of the seat bucket are ensured, and the requirement of efficient demolding is realized. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 is a structure schematic view of the inclined top demolding assembly of the motorcycle seat bucket injection mold inclined top demolding mechanism.
[0012] Figure 2 is a specific schematic view of the lower mold of the seat bucket combined with the inclined top demolding assembly of the motorcycle seat bucket injection mold inclined top demolding mechanism.
[0013] Figure 3 is a three-dimensional structure schematic view of the injection mold of the motorcycle seat bucket injection mold inclined top demolding mechanism.
[0014] Figure 4 is a structure schematic view of the lower mold cavity of the motorcycle seat bucket injection mold inclined top demolding mechanism.
[0015] Figure 5 is a structure schematic view of the lower mold cavity of the motorcycle seat bucket injection mold inclined top demolding mechanism.
[0016] Figure 6 is a three-dimensional structure schematic view of the lower mold of the seat bucket of the motorcycle seat bucket injection mold inclined top demolding mechanism.
[0017] Figure 7 is a structure schematic view of the seat bucket contour combined with the upper mold of the seat bucket.
[0018] In the figure, 1, seat bucket upper mold detail; 2, seat bucket lower mold detail; 3, mold base; 4, upper mold core; 5, lower mold cavity; 6, inclined ejector head; 7, inclined ejector rod seat; 8, ejector rod connecting seat; 9, round inclined ejector rod; 10, guide sliding sleeve; 11, self-lubricating oil seat; 12, lubricating oil path; 13, round flange; 14, top groove position; 15, round contact point; 16, fixed pin. DETAILED DESCRIPTION
[0019] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.
[0020] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 indicated, the utility model motorcycle seat bucket injection mold inclined ejector mechanism;
[0021] The injection mold includes but is not limited to the following structural members, seat bucket upper mold detail 1, seat bucket lower mold detail 2 and mold base 3, the bottom of seat bucket upper mold detail 1 is provided with integrally formed upper mold core 4, both sides of seat bucket upper mold detail 1 and both sides of seat bucket lower mold detail 2 are screw-threadedly installed with lifting rings, the top of seat bucket lower mold detail 2 is provided with integrally formed lower mold cavity 5, lower mold cavity 5 corresponds upper mold core 4 and makes seat bucket upper mold detail 1 and seat bucket lower mold detail 2 mold connecting, mold base 3 is fastened at the bottom end of seat bucket lower mold detail 2 by bolt.
[0022] Embodiment one: further include inclined ejector assembly; inclined ejector assembly includes inclined ejector head 6, inclined ejector rod seat 7, round inclined ejector rod 9 and guide sliding sleeve 10, inclined ejector rod seat 7 is installed on the top of mold base 3 through ejector rod plate, the top of inclined ejector rod seat 7 is connected with ejector rod connecting seat 8, round inclined ejector rod 9 is movably arranged at the top end of ejector rod connecting seat 8 through universal joint head, one end of round inclined ejector rod 9 is connected with inclined ejector head 6, guide sliding sleeve 10 is movably arranged at the rod body part of round inclined ejector rod 9 and can move along round inclined ejector rod 9, the side of guide sliding sleeve 10 is provided with self-lubricating oil seat 11, the inside of guide sliding sleeve 10 is provided with lubricating oil path 12 and lubricating oil path 12 communicates the oil port part of self-lubricating oil seat 11.
[0023] The scheme sets up self-lubricating oil seat 11 (adopting small hole design, in the process of gravity operation and relative motion, small hole can discharge oil to realize self-lubrication) that can store lubricating oil and can automatically supply oil at the side of guide sliding sleeve 10, can make guide sliding sleeve 10 have good lubricating effect when moving relative to round inclined ejector rod 9, can greatly reduce the relative wear of round inclined ejector rod 9 and guide sliding sleeve 10, improve the service life of both.
[0024] Further, in order to make the circular inclined ejector rod 9 position fixed, the circular inclined ejector rod 9 has good stability after changing the angle, the inclined ejector assembly further comprises a fixed pin 16 located at the side of the ejector rod connecting seat 8, the fixed pin 16 passes through the universal joint connected with the circular inclined ejector rod 9 and is fastened at the side of the ejector rod connecting seat 8 through a nut.
[0025] Further, in order to better inclined ejector, the movement interval is provided between the lower mold body 2 and the mold base 3, and the movement stroke of the ejector rod plate in the movement interval is not less than the mold cavity depth of the lower mold cavity 5.
[0026] The driving force of the ejector rod plate comes from the ejection force of the injection machine or the added oil cylinder to realize the lifting force.
[0027] Embodiment two: the inclined ejector assembly comprises an inclined ejector head 6, an inclined ejector rod seat 7, a circular inclined ejector rod 9 and a guide sliding sleeve 10, the inclined ejector rod seat 7 is installed on the top of the mold base 3 through the ejector rod plate, the top of the inclined ejector rod seat 7 is connected with an ejector rod connecting seat 8, the circular inclined ejector rod 9 is movably arranged at the top end of the ejector rod connecting seat 8 through a universal joint, one end of the circular inclined ejector rod 9 is connected with the inclined ejector head 6, the guide sliding sleeve 10 is movably arranged at the rod body part of the circular inclined ejector rod 9 and can move along the circular inclined ejector rod 9, the side of the guide sliding sleeve 10 is provided with a self-lubricating oil seat 11, the inside of the guide sliding sleeve 10 is provided with a lubricating oil way 12 and the lubricating oil way 12 is communicated with the oil outlet part of the self-lubricating oil seat 11, a top groove position 14 matched with the shape of the inclined ejector head 6 is arranged at the bottom of the lower mold cavity 5, and integral circular contact points 15 are arranged at both ends of the top groove position 14; the inclined ejector head 6 is in a strip structure and the circular flange 13 matched with the circular contact points 15 is arranged at both ends of the inclined ejector head 6.
[0028] The scheme makes the shape of the top groove position 14 at the bottom of the lower mold cavity 5 same as the shape of the inclined ejector head 6, so that the inclined ejector head 6 can perfectly fit with the top groove position 14 at the bottom of the lower mold cavity 5, reduces the influence of the concave-convex surface of the inclined ejector head 6 on the space of the lower mold cavity 5, which can ensure the quality and qualification rate of the seat pan, thereby realizing the demand of efficient demolding.
[0029] Assembly: the upper mold body 1, the lower mold body 2 and the mold base 3 are all common structures of the existing technology of injection molding motorcycle seat pan, which are not repeated here, the inclined ejector assembly designed in the application is assembled on the mold base 3, the inclined ejector rod seat 7, the circular inclined ejector rod 9 and the guide sliding sleeve 10 are correspondingly connected to the lower mold body 2, so that the inclined ejector head 6 corresponds to the top groove position 14 of the lower mold cavity 5, when the injection machine injects the molten material into the upper mold core 4 and the lower mold cavity 5, the cold forming motorcycle seat pan is formed, and the demolding is realized through the inclined ejector assembly of the application.
[0030] What is not described in detail in the specification belongs to the prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
Claims
1. A motorcycle bucket injection mold inclined ejection mechanism, comprising a bucket upper mold body (1), a bucket lower mold body (2) and a mold base (3), the bottom of the bucket upper mold body (1) is provided with an integrally formed upper mold core (4), the top of the bucket lower mold body (2) is provided with an integrally formed lower mold cavity (5), the lower mold cavity (5) corresponds to the upper mold core (4) and makes the bucket upper mold body (1) and the bucket lower mold body (2) connected in a mold, and the mold base (3) is fastened at the bottom end of the bucket lower mold body (2) through bolts, characterized in that, Also include the inclined top demolding assembly; the inclined top demolding assembly includes the inclined top head (6), the inclined top rod seat (7), the round inclined top rod (9) and the guide sliding sleeve (10), the inclined top rod seat (7) is installed on the top of the mold base (3) through the top rod plate, the top of the inclined top rod seat (7) is connected with the top rod connecting seat (8), the round inclined top rod (9) is movably arranged at the top end of the top rod connecting seat (8) through the universal joint, one end of the round inclined top rod (9) is connected with the inclined top head (6), the guide sliding sleeve (10) is movably arranged at the rod body part of the round inclined top rod (9) and can move along the round inclined top rod (9), the side of the guide sliding sleeve (10) is provided with the self-lubricating oil seat (11), the inside of the guide sliding sleeve (10) is provided with the lubricating oil way (12) and the lubricating oil way (12) is communicated with the oil outlet part of the self-lubricating oil seat (11).
2. The motorcycle saddle injection mold ejection mechanism according to claim 1, characterized in that, The bottom of the lower mold cavity (5) is provided with a top groove position (14) matched with the shape of the inclined top head (6), and both ends of the top groove position (14) are provided with integrally formed round contact points (15).
3. The motorcycle saddle injection mold ejection mechanism according to claim 2, characterized in that, The inclined top head (6) is a strip-shaped structure, and both ends of the inclined top head (6) are provided with round flanges (13) matched with the round contact points (15).
4. The motorcycle saddle tank injection mold angle ejector mechanism of claim 1, wherein, The inclined top demolding assembly further includes a fixed pin (16) located on the side of the top rod connecting seat (8), the fixed pin (16) passes through the universal joint connected with the round inclined top rod (9) and is fastened on the side of the top rod connecting seat (8) through a nut.
5. The motorcycle saddle tank injection mold angle ejector mechanism of claim 1, wherein, The seat barrel lower mold (2) and the mold base (3) are provided with a movement interval, and the movement stroke of the top rod plate in the movement interval is not less than the mold cavity depth of the lower mold cavity (5).
6. The motorcycle saddle tank injection mold angle ejector mechanism of claim 1, wherein, Both sides of the seat barrel upper mold (1) and both sides of the seat barrel lower mold (2) are threadedly installed with lifting rings.
Citation Information
Patent Citations
Pitched roof demolding mechanism
CN221968818U