Secondary motion mechanism for inclined top of automobile C-column interior plastic part mold
By designing a combined structure of inclined top fixing seat and sliding block, the problems of excessively large inclined top angle and insufficient demolding space in automotive C-pillar interior plastic parts were solved, achieving smooth demolding and efficient production.
Patent Information
- Application Number
- CN202520548232.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The side hole structure of the C-pillar interior plastic parts of automobiles results in an excessively large angle of the slanted ejector head, which increases the ejection stroke and friction, reduces the reliability of the mechanism, and is also interfered with by the rib structure in the demolding direction, resulting in insufficient movement space.
Design a secondary motion mechanism for the inclined ejector of a mold for automotive C-pillar interior plastic parts. Through the combination of an inclined ejector fixed seat, an inclined ejector straight rod, an inclined ejector fixed rod, and an inclined ejector head, and utilizing diagonally arranged holes and a sliding block structure, smooth demolding of the inclined ejector head can be achieved.
It improved demolding efficiency, reduced production costs, increased product yield, and solved the problem of insufficient movement space for the angled ejector.
Smart Images

Figure CN223904474U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to injection mold technical field, specifically, the utility model relates to a kind of automobile C column interior trim plastic part mold inclined top secondary motion mechanism. BACKGROUND
[0002] Side hole structure is equipped on automobile interior trim plastic part, so that product side hole is according to demoulding angle, and reverse angle is large;Product side hole is large in length and width size at this angle position, so that the angle of inclined top head is too large, can increase ejection stroke and sliding distance, lead to ejection not smooth, increase friction, reduce the reliability of mechanism action.Usually, the angle of inclined top head should not be greater than 5 °, to avoid the increase of friction force leading to unable to realize mold inclined top ejection, mold inclined top core pulling.
[0003] In addition, there is rib structure interference in the demoulding direction of product, leading to insufficient movement space. INVENTION CONTENTS
[0004] The utility model provides a kind of automobile C column interior trim plastic part mold inclined top secondary motion mechanism to solve the technical problems existing in the above background technique.
[0005] In order to realize the above purpose, the technical scheme that the utility model takes is as follows: a kind of automobile C column interior trim plastic part mold inclined top secondary motion mechanism, including movable mould and the inclined top mechanism of movable mould assembly, the inclined top mechanism includes inclined top fixed seat, inclined top straight top rod, inclined top fixed rod, inclined top head and inclined top fixed pin, the inclined top fixed seat is fastened connection by bolt with movable mould, first hole site and second hole site are equipped on the inclined top fixed seat, the inclined top straight top rod is slidably connected with first hole site, the inclined top fixed rod is slidably connected with second hole site, the inclined top straight top rod is slidably connected with inclined top fixed rod, the inclined top head is connected with the top of inclined top fixed rod by inclined top fixed pin.
[0006] Preferably, the first hole site and the second hole site are diagonally arranged;The center line of first hole site and Z direction angle is 0 °;The center line of second hole site and Z direction angle is 3 °.
[0007] Preferably, 54 ° sliding groove is equipped on the inclined top straight top rod, and 54 ° sliding block is equipped on the inclined top fixed rod and slidably cooperates with 54 ° sliding groove.
[0008] The beneficial effects of the above technical scheme are as follows:
[0009] 1. The automobile C column interior plastic part mold inclined ejection secondary motion mechanism, the inclined ejection straight ejector rod is constrained along the Z direction sliding through the first hole position on the inclined ejection fixed seat;At the same time, the inclined ejection fixed rod is constrained along the Z direction 3° deviation sliding through the second hole position on the inclined ejection fixed seat;The inclined ejection straight ejector rod is ejected along the Z direction and the automobile C column interior plastic part, the inclined ejection fixed rod is deviated along the Z direction 3° sliding and makes the inclined ejection head separate from the automobile C column interior plastic part reverse buckling hole position, which is convenient to take the automobile C column interior plastic part;Solve the automobile C column interior plastic part reverse buckling size, demolding motion direction has muscle position structure interference and the insufficient space of inclined ejection head motion condition, improve the demolding efficiency and product excellent rate, reduce the production cost.
[0010] The first hole position and the second hole position on the inclined ejection fixed seat are diagonally arranged;The center line of the first hole position and the Z direction are 0°;The center line of the second hole position and the Z direction are 3°, if the inclined ejection straight ejector rod and the inclined ejection fixed rod slide at the same time, the inclined ejection fixed rod and the inclined ejection straight ejector rod will have motion interference, cannot be synchronized, at this time, the inclined ejection straight ejector rod side design 54° slide groove drives the inclined ejection fixed rod side design 54° slide block synchronous sliding, avoid the problem of not being synchronized caused by angle difference. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is automobile C column interior plastic part structure schematic diagram;
[0012] Figure 2 It is automobile C column interior plastic part, inclined ejection mechanism and moving die demolding state schematic diagram;
[0013] Figure 3 It is automobile C column interior plastic part is ejected by inclined ejection mechanism state schematic diagram;
[0014] Figure 4 It is automobile C column interior plastic part is ejected by inclined ejection head 100mm state sectional view;
[0015] Figure 5 It is automobile C column interior plastic part is ejected by inclined ejection head 100mm and inclined ejection head exits product reverse buckling position state sectional view;
[0016] Figure 6 It is inclined ejection mechanism assembly drawing;
[0017] Figure 7 It is inclined ejection fixed seat structure schematic diagram;
[0018] Figure 8 It is inclined ejection straight ejector rod structure schematic diagram;
[0019] Figure 9 It is inclined ejection fixed rod structure schematic diagram;
[0020] Figure 10 It is inclined ejection head structure schematic diagram;
[0021] Figure 11 is a schematic view of a slanting ejection pin structure;
[0022] wherein:
[0023] 1, moving die; 2, slanting ejection mechanism; 3, automobile C column interior plastic part;
[0024] 20, slanting ejection fixed seat; 20-1, first hole position; 20-2, second hole position;
[0025] 21, slanting ejection straight top rod; 21-1, 54° sliding groove;
[0026] 22, slanting ejection fixed rod; 22-1, 54° sliding block;
[0027] 23, slanting ejection head;
[0028] 24, slanting ejection fixed pin. DETAILED DESCRIPTION
[0029] The specific embodiments of the utility model are further explained in detail by the description of the embodiments with reference to the drawings, the purpose is to help the technical personnel in the field to have more complete, accurate and deep understanding to the conception, technical scheme of the utility model, and help to implement.
[0030] As Figures 1 to 11 shown, the utility model is a kind of automobile C column interior plastic part mould slanting ejection secondary motion mechanism, solve the automobile C column interior plastic part reverse buckling size, demoulding movement direction has the interference of muscle position structure and the condition that slanting ejection head movement space is insufficient, promote demoulding efficiency and product excellent rate, reduce production cost.
[0031] Specifically, as Figures 1 to 11 shown, including moving die 1 and with the slanting ejection mechanism 2 of moving die 1 assembly, the slanting ejection mechanism 2 includes slanting ejection fixed seat 20, slanting ejection straight top rod 21, slanting ejection fixed rod 22, slanting ejection head 23 and slanting ejection fixed pin 24, the slanting ejection fixed seat 20 is fastened by bolt and moving die 1 connection, the first hole position 20-1 and the second hole position 20-2 are equipped on the slanting ejection fixed seat 20, the slanting ejection straight top rod 21 is connected with the first hole position 20-1 sliding, the slanting ejection fixed rod 22 is connected with the second hole position 20-2 sliding, the slanting ejection straight top rod 21 is connected with the slanting ejection fixed rod 22 sliding, the slanting ejection head 23 is connected with the top of slanting ejection fixed rod 22 by slanting ejection fixed pin 24.
[0032] The first hole position 20-1 and the second hole position 20-2 are diagonally arranged;The center line of the first hole position 20-1 and Z direction angle 0°;The center line of the second hole position 20-2 and Z direction angle 3°.
[0033] The oblique ejection straight ejection rod 21 is provided with a 54° sliding groove 21-1, and the oblique ejection fixed rod 22 is provided with a 54° sliding block 22-1 in sliding cooperation with the 54° sliding groove 21-1.
[0034] The specific working mode is described below by means of specific examples:
[0035] Example 1:
[0036] The oblique ejection straight ejection rod 21 is provided with a 54° sliding groove 21-1, and the oblique ejection fixed rod 22 is provided with a 54° sliding block 22-1 in sliding cooperation with the 54° sliding groove 21-1.
[0037] The first hole position 20-1 and the second hole position 20-2 on the oblique ejection fixed seat 20 are diagonally arranged; the center line of the first hole position 20-1 and the Z direction form an angle of 0°; and the center line of the second hole position 20-2 and the Z direction form an angle of 3°. If the oblique ejection straight ejection rod 21 and the oblique ejection fixed rod 22 slide at the same time, the oblique ejection fixed rod 22 and the oblique ejection straight ejection rod 21 will interfere with each other and cannot be synchronized. At this time, the 54° sliding groove on one side of the oblique ejection straight ejection rod 21 drives the 54° sliding block on one side of the oblique ejection fixed rod 22 to slide synchronously, so as to avoid the problem of being unable to synchronize caused by the angle difference.
[0038] The above has been described by way of example with reference to the drawings. Obviously, the specific implementation of the present application is not limited to the above-mentioned manner, and various non-essential improvements can be made by adopting the method concept and technical solution of the present application. Or, without improvement, the above-mentioned concept and technical solution of the present application can be directly applied to other occasions, which are all within the protection scope of the present application.
Claims
1. A secondary motion mechanism of inclined ejection for a mold of an automobile C-pillar interior plastic part, comprising a movable mold (1) and an inclined ejection mechanism (2) assembled with the movable mold (1), characterized in that: The inclined ejection mechanism (2) comprises an inclined ejection fixed seat (20), an inclined ejection straight ejection rod (21), an inclined ejection fixed rod (22), an inclined ejection head (23) and an inclined ejection fixed pin (24), the inclined ejection fixed seat (20) is fastened and connected with the movable mold (1) through bolts, the inclined ejection fixed seat (20) is provided with a first hole position (20-1) and a second hole position (20-2), the inclined ejection straight ejection rod (21) is slidingly connected with the first hole position (20-1), the inclined ejection fixed rod (22) is slidingly connected with the second hole position (20-2), the inclined ejection straight ejection rod (21) is slidingly connected with the inclined ejection fixed rod (22), and the inclined ejection head (23) is connected with the top of the inclined ejection fixed rod (22) through the inclined ejection fixed pin (24).
2. The inclined ejector secondary motion mechanism for a C-pillar interior plastic part mold of an automobile according to claim 1, characterized in that: The first hole position (20-1) and the second hole position (20-2) are diagonally arranged, the center line of the first hole position (20-1) forms an angle of 0° with the Z direction, and the center line of the second hole position (20-2) forms an angle of 3° with the Z direction.
3. The mechanism according to claim 1, characterized in that: The inclined ejection straight ejection rod (21) is provided with a 54° sliding groove (21-1), and the inclined ejection fixed rod (22) is provided with a 54° sliding block (22-1) slidingly matched with the 54° sliding groove (21-1).