Double-sliding-block pulling-out structure
By using a dual-slider extraction structure and a slope design with inclined guide pillars and angled surfaces, the problem of demolding failure with a single slider is solved, enabling efficient demolding of complex product structures and simplified installation, thereby improving mold efficiency and product precision.
Patent Information
- Application Number
- CN202423182269.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In existing technologies, unidirectional sliders cannot effectively demold complex local product structures, especially undercut positions, resulting in complex structures and difficult installation.
The product employs a dual-slider extraction structure, including a second slider, a first slider, a locking block, and an inclined guide post. The movement of the inclined guide post drives the lateral movement of the slider. Combined with the angled slope and stepped design, the product's inverted structure can be successfully demolded.
This achieved high-precision demolding of the product, reduced development costs, simplified the installation process, reduced the number of parts, and improved the efficiency of mold use.
Smart Images
Figure CN223558992U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the field of injection mold structure, and relates to a double-sliding-block extraction structure. BACKGROUND
[0002] The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors and shapes, simple to complex shapes, large to small sizes, accurate product size and wide application in the field of automobile safety boxes. However, the structure of plastic parts is increasingly diversified, and the local product structure is complex, especially the reverse clamping position, which requires the use of a sliding block to complete product demolding. However, a single direction sliding block cannot realize the demolding of the structure, and the prior art usually adopts a complex composite structure for extraction, but the composite structure has many parts and is often complex to install. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the above problems, the utility model provides a double-sliding-block extraction structure.
[0004] The utility model solves its technical problem and is implemented by the following technical scheme:
[0005] A double-sliding-block extraction structure is characterized by comprising a second sliding block, a first sliding block, a locking block and an inclined guide column, the front end of the second sliding block is provided with a second cavity end face, the rear end of the second sliding block is fixedly connected with a second sliding seat through bolts, and an inclined second through hole is arranged in the second sliding seat; a locking block is arranged on the upper part of the rear end of the second sliding seat, an inclined guide column is fixedly arranged on the lower part of the locking block, the locking block can move up and down, the inclined guide column penetrates into or separates from the second through hole, the diameter of the second through hole is greater than the diameter of the inclined guide column, a first sliding seat is slidably connected in the second sliding block, the front end of the first sliding seat is fixedly connected with the first sliding block, and the front end of the first sliding block is provided with a first cavity end face; a first through hole is arranged in the first sliding seat, the first through hole is parallel to the second through hole, and the diameter of the first through hole is matched with the diameter of the inclined guide column.
[0006] Moreover, an inclined groove matched with the second sliding seat is arranged in the locking block, and the second sliding seat is embedded in the locking block for close cooperation.
[0007] Moreover, an inclined guide column through hole is arranged on the upper part of the locking block, the guide column through hole is parallel to the second through hole, the guide column through hole can be penetrated by the second through hole, and the inclined guide column is fixedly arranged in the guide column hole.
[0008] Moreover, the second through hole is arranged to be inclined at an acute angle with the vertical direction.
[0009] Moreover, a first sliding groove is arranged in the middle part of the second sliding block, and a first sliding seat is slidably connected in the first sliding groove.
[0010] Moreover, the upper end surface of the first slider is in sliding abutment with the lower end surface of the second slider, and the upper end surface of the first slider and the lower end surface of the second slider are provided as angularly matched slope surfaces.
[0011] Moreover, the upper end surface of the first slider is in sliding abutment with the lower end surface of the second slider, and the upper end surface of the first slider and the lower end surface of the second slider are provided as angularly matched slope surfaces.
[0012] The utility model discloses the advantages and positive effects are:
[0013] The structure is used in a mold, the slider inclined jacking structure can effectively extrude a product, reduces development cost, and can complete core pulling and inclined ejection in one action, has few parts, is simple to install, has high product precision and good quality. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.
[0015] Figure 1 It is the structure schematic diagram of the clamping state of this embodiment.
[0016] Figure 2 It is the structure schematic diagram of the first slider separation state of this embodiment.
[0017] Figure 3 It is the structure schematic diagram of the double slider separation state of this embodiment.
[0018] Figure 4 It is Figure 3 The enlarged schematic diagram of A part in the figure.
[0019] Figure 5 It is the three-dimensional structure schematic diagram of the clamping state of this embodiment.
[0020] Figure 6 It is the three-dimensional structure schematic diagram of the first slider separation state of this embodiment.
[0021] Figure 7 It is the three-dimensional structure schematic diagram of the double slider separation state of this embodiment.
[0022] The figure mark indicates: 1, inclined guide pillar;2, locking block;3, first slide;4, second slide;5, second slider;51, second cavity end surface;52, second step;6, first slider;61, first step;62, first cavity end surface. DETAILED DESCRIPTION
[0023] In order to make the structure and advantages of the utility model more clear, the structure of the utility model will be further described below in combination with the drawings.
[0024] The vertical direction, the horizontal direction, the front end, the rear end and the like in the embodiment are relative position descriptions, and do not limit the actual direction of the product.
[0025] A double-sliding-block extraction structure is provided, and the product side edge is designed with a reverse buckling position. Figure 1 As shown in the drawings, the double-sliding-block extraction structure comprises a second sliding block 5, a first sliding block 6, a locking block 2 and an inclined guide column 1,
[0026] The second sliding block 5 is provided with a second cavity end face 51 for product forming at the front end, and the rear end of the second sliding block 5 is fixedly connected with a second sliding seat 4 through a bolt, the second sliding block 5 can move forward and backward in the horizontal direction, and a second through hole inclined at an acute angle with the vertical direction is arranged in the second sliding block 5.
[0027] The rear upper portion of the second sliding block 5 is provided with the locking block 2, the locking block 2 is provided with a beveled groove matched with the second sliding block 5, the second sliding block 5 is embedded in the locking block 2 and tightly matched with each other, the locking block 2 can press the second sliding block 5 to prevent the sliding block from moving in the injection molding process, and the cavity structure is stable.
[0028] The upper portion of the locking block 2 is provided with an inclined guide column through hole, the guide column through hole is parallel to the second through hole, the guide column through hole can be penetrated through the second through hole, and the guide column through hole is fixedly connected with the inclined guide column 1. The locking block 2 can move up and down, the inclined guide column 1 penetrates into or separates from the second through hole, and the inclined guide column 1 pushes the inner wall of the second through hole in the moving process, so that the second sliding block 5 moves in the horizontal direction.
[0029] The inclined guide column 1 can coaxially penetrate through the guide column through hole and the second through hole, wherein the hole diameter of the second through hole is greater than that of the guide column through hole, and the inclined guide column 1 can move axially in the second through hole or radially in the hole diameter.
[0030] The middle portion of the second sliding block 5 is provided with a first sliding channel, the first sliding seat 3 is slidably connected in the first sliding channel, the first sliding seat 3 is provided with a first through hole, the first through hole is parallel to the second through hole, and the hole diameter of the first through hole is matched with the diameter of the inclined guide column 1, so that the inclined guide column 1 can only move axially in the first through hole. When the inclined guide column 1 moves, the first sliding block 6 moves forward and backward at the same time.
[0031] The front end of the first sliding seat 3 is fixedly connected with the first sliding block 6, the upper end surface of the first sliding block 6 abuts against the lower end surface of the second sliding block 5, the front end of the first sliding block 6 is provided with a first cavity end face for product forming, and the first cavity end face and the second cavity end face 51 cooperatively form a cavity end face corresponding to the product reverse buckling structure.
[0032] To ensure accurate positioning, the upper surface of the first slider 6 and the lower surface of the second slider 5 are designed as angularly fitted slopes, as shown in the attached diagram. The front end of the slope is lower than the rear end. A first step 61 is provided at the upper front end of the first slider 6; a second step 52 is provided at the lower front end of the second slider 5. The second step 52 and the first step 61 can abut against each other. Figure 3 As shown.
[0033] The operation of this structure is as follows:
[0034] like Figure 1 As shown, after the product injection molding is completed, when the mold opens, the locking block 2 moves upward and the inclined guide post 1 moves synchronously.
[0035] The inclined guide post 1 moves within the larger second through hole, while the second slide 4 remains stationary. Simultaneously, the inclined guide post 1 pushes the first slide 3, which moves backward within the second slide 4, causing the first slider 6 to disengage from the product.
[0036] Until the inclined guide post 1 reaches the limit position where it is tightly pressed against the second through hole, such as... Figure 2 As shown, the inclined guide post 1 continues to move, driving the second slide 4 to move backward until the second slider 5 separates from the product, and the inclined guide post 1 separates from the second slide 4, as shown. Figure 4 As shown.
[0037] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A double sliding draw structure, characterized by, The second slider, the first slider, the locking block and the inclined guide post are included, The second slider is provided with a second cavity end face at the front end, and the rear end of the second slider is fixed to the second sliding seat by a bolt. An inclined second through hole is arranged in the second sliding seat. A locking block is arranged on the upper part of the rear end of the second sliding seat. An inclined guide post is fixed to the lower part of the locking block. The locking block can move up and down, and the inclined guide post penetrates or separates from the second through hole. The diameter of the second through hole is larger than the diameter of the inclined guide post. The first sliding seat is slidably connected in the second slider. The front end of the first sliding seat is fixedly connected to the first slider. The front end of the first slider is provided with a first cavity end face. A first through hole is arranged in the first sliding seat. The first through hole is parallel to the second through hole. The diameter of the first through hole is matched with the diameter of the inclined guide post.
2. A dual sliding block extraction structure according to claim 1, wherein An inclined groove matched with the second sliding seat is arranged in the locking block. The second sliding seat is embedded in the locking block for close cooperation.
3. A dual sliding block extraction structure according to claim 1, wherein An inclined guide post through hole is arranged on the upper part of the locking block. The guide post through hole is parallel to the second through hole. The guide post through hole can be penetrated by the second through hole. An inclined guide post is fixed in the guide post through hole.
4. A dual sliding draw structure according to claim 1, wherein The second through hole is arranged at an acute angle with the vertical direction.
5. A dual sliding draw structure according to claim 1, wherein A first sliding channel is arranged in the middle part of the second slider. A first sliding seat is slidably connected in the first sliding channel.
6. A dual sliding draw structure according to claim 1, wherein, The upper end surface of the first slider is slidably abutted against the lower end surface of the second slider. The upper end surface of the first slider and the lower end surface of the second slider are arranged as an angle-matched slope surface.
7. A dual sliding draw structure according to claim 1, wherein A first step is arranged on the upper end of the front part of the first slider. A second step is arranged on the lower end of the front part of the second slider. The second step can be abutted and cooperated with the first step.