CN223720084U - Integrated secondary demoulding mechanism in injection mould - Google Patents
Integrated secondary demoulding mechanism in injection mouldInfo
- Publication number
- CN223720084U CN223720084U CN202520058816.3U CN202520058816U CN223720084U CN 223720084 U CN223720084 U CN 223720084U CN 202520058816 U CN202520058816 U CN 202520058816U CN 223720084 U CN223720084 U CN 223720084U
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- guide rail
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Abstract
本实用新型公开了一种注塑模中的一体式二次脱模机构，包括：上顶板、下顶板及导轨固定板，在每个导轨固定板上设置有两个导轨组，一个导轨组中并列设置有第一导轨和第二导轨，第一导轨的顶壁为斜顶壁，在第二导轨的平顶壁与前侧壁之间设置有斜导面，在上顶板的四周向下设置有四个导柱，四个导柱分别与四个第二导轨相配合，在上顶板上设置有若干型芯孔，在下顶板的左右两侧壁上均设置有两个导块，四个导块分别与四个第一导轨相配合，在下顶板上设置有若干滑孔。本实用新型的优点在于：结构简单，但是保证了上顶板和下顶板之间的高协同性及高效率性，从而提高了注塑模的两次脱模时的效率及精度。
This utility model discloses an integrated secondary demolding mechanism for injection molds, comprising: an upper ejector plate, a lower ejector plate, and guide rail fixing plates. Two guide rail assemblies are arranged on each guide rail fixing plate, with a first guide rail and a second guide rail arranged side-by-side in each guide rail assembly. The top wall of the first guide rail is an inclined top wall. An inclined guide surface is provided between the flat top wall and the front side wall of the second guide rail. Four guide pillars are arranged downwards around the upper ejector plate, each cooperating with one of the four second guide rails. Several core holes are provided on the upper ejector plate. Two guide blocks are provided on each of the left and right side walls of the lower ejector plate, each cooperating with one of the four first guide rails. Several sliding holes are provided on the lower ejector plate. The advantages of this utility model are: simple structure, yet ensuring high coordination and efficiency between the upper and lower ejector plates, thereby improving the efficiency and accuracy of secondary demolding in injection molds.
Description
Technical Field
The utility model relates to the field of molds, in particular to an integrated secondary demolding mechanism in an injection mold.
Background
In the process of producing plastic products with convex rings or edges such as covers by using an injection mold, when the demolding is carried out on the products after injection molding, the situation that the products cannot automatically fall off due to clamping on the mold core easily occurs, so that the products need to be taken down by manual operation, time is wasted, danger exists, and the products are easy to damage when manually taken out. In order to improve the automatic demolding effect of the injection mold, a secondary ejection mechanism is generally added in the injection mold, and after the demolding plate in the injection mold is used for demolding a product, the product clamped on the mold core is ejected out through the secondary ejection mechanism, so that the product is automatically released. However, an additional driving mechanism is needed for arranging a secondary ejection mechanism, so that the mold is complicated, and the problem of matching between the demolding driving mechanism and the secondary ejection mechanism is easy to occur.
Disclosure of utility model
The utility model aims to provide an integrated secondary demoulding mechanism in an injection mould, which can integrate two demoulding actions together and does not cause matching problems.
The integrated secondary demolding mechanism in the injection mold comprises an upper top plate, a lower top plate and guide rail fixing plates, wherein the two guide rail fixing plates are arranged in parallel, the two guide rail fixing plates are connected with a movable plate, the movable plate is connected with a driver, two guide rail groups are arranged on each guide rail fixing plate, a first guide rail and a second guide rail are arranged in parallel in one guide rail group, the top wall of the first guide rail is an inclined top wall which is inclined from front to back and from bottom to top, inclined guide surfaces which are inclined from bottom to top are arranged between the flat top wall and the front side wall of the second guide rail, four guide posts are arranged around the upper top plate downwards, the four guide posts are respectively matched with the four second guide rails, wedge-shaped surfaces which are matched with the inclined guide surfaces on the second guide rails are arranged on the bottom wall of the guide posts, a plurality of core holes are formed in the upper top plate, two guide blocks are respectively matched with the four first guide rails, and wedge-shaped surfaces which are respectively arranged on the bottom walls of the guide blocks.
Further, in the integrated secondary demolding mechanism in the injection mold, the oblique top wall of the first guide rail is provided with the anti-skid patterns, and the flat top wall and the oblique guide surface of the second guide rail are also provided with the anti-skid patterns.
Furthermore, in the integrated secondary demoulding mechanism in the injection mould, the connecting structure between the first guide rail and the second guide rail in the guide rail group and the guide rail fixing plate is that the guide rail fixing plate is provided with the mounting groove, the first guide rail and the second guide rail are clamped in the same mounting groove and are connected through bolts, and the inclination of the inclined top wall of the first guide rail is the same as the inclination of the inclined guide surface of the second guide rail.
Furthermore, the integrated secondary demoulding mechanism in the injection mould comprises a connecting structure between the guide block and the lower top plate, wherein two clamping grooves are formed in the left side wall and the right side wall of the lower top plate, one clamping groove is flush with the rear end wall of the lower top plate, one first guide rail on the guide rail fixing plate is movably clamped in the clamping groove and extends out of the lower top plate backwards, a limiting groove is reserved between the other clamping groove and the side wall of the same side, the other first guide rail on the guide rail fixing plate is movably clamped in the clamping groove and the limiting groove, a fixing groove is formed in the top wall of the clamping groove, and the guide block is clamped in the fixing groove and is connected through a bolt.
Further, the integrated secondary demolding mechanism in the injection mold is characterized in that the driver is an oil cylinder, the oil cylinder is fixed on the fixed plate, a piston rod on the oil cylinder penetrates through the fixed plate and then is connected with the movable plate, a plurality of guide shafts are arranged on the fixed plate, a plurality of guide holes are arranged on the movable plate, and the guide holes are movably sleeved on the guide shafts.
The utility model has the advantages that the structure is simple, but the high cooperativity and the high efficiency between the upper top plate and the lower top plate are ensured, so that the efficiency and the precision of the demolding are improved for two times, the guide rail fixing plate can drive the upper top plate and the lower top plate to lift simultaneously through the first guide rail and the second guide rail when moving forwards, the upper top plate is not lifted up any more after being lifted up to a certain height, the lower top plate is lifted up continuously, the demolding for the second time is completed in the lifting process, and the demolding for two times can be completed by driving the guide rail fixing plate to move forwards.
Drawings
Fig. 1 is a schematic structural view of an integrated secondary demolding mechanism in an injection mold according to the present utility model.
Fig. 2 is a schematic view of the structure of fig. 1 with the top plate and guide posts removed.
Fig. 3 is a schematic diagram of a connection structure between the guide fixing plate and the first guide rail and the second guide rail in fig. 2.
Fig. 4 is a schematic view of the structure of the lower top plate in fig. 2.
Fig. 5 is a schematic structural view of an integrated secondary demolding mechanism connected with an injection mold in the injection mold according to the present utility model.
Fig. 6 is a schematic view of the structure of fig. 5 after one demolding is completed.
Fig. 7 is a schematic view of the structure upon completion of the secondary demolding on the basis of fig. 6.
Detailed Description
The technical scheme of the utility model is further described below with reference to the attached drawings and the preferred embodiments.
As shown in figures 1-4, the integrated secondary demolding mechanism in the injection mold comprises an upper top plate 1, a lower top plate 2 and guide fixing plates 3, wherein the two guide fixing plates 3 are arranged in parallel, the two guide fixing plates 3 are connected with a movable plate 31, the movable plate 31 is connected with a driver, the driver is an oil cylinder 4, the oil cylinder 4 is fixed on a fixed plate 41, a piston rod on the oil cylinder 4 penetrates through the fixed plate 41 and is connected with the movable plate 31, a plurality of guide shafts 42 are arranged on the fixed plate 41, a plurality of guide holes are arranged on the movable plate 31, the guide holes are movably sleeved on the guide shafts 42, two guide rail groups are arranged on each guide fixing plate 3, a first guide rail 32 and a second guide rail 33 are arranged in parallel in one guide rail group, the first guide rail 32 and the second guide rail 33 are arranged on the guide fixing plate 3 in the guide rail group, the first guide rail 32 and the second guide rail 33 are respectively clamped in the same mounting groove and are connected with the movable plate 31 through bolts, the first guide rail 32 is an inclined top wall and a second guide rail 33 is inclined from top wall to the bottom, and a second guide rail is inclined from top wall is inclined to the top wall and the top wall is inclined from top to bottom, and the top wall is inclined from top to bottom, and the top wall is provided with an identical slope.
Four guide posts 11 are downwards arranged around the upper top plate 1, the four guide posts 11 surround the outer side of the lower top plate 2, the four guide posts 11 are respectively matched with four second guide rails 33, wedge-shaped surfaces matched with inclined guide surfaces on the second guide rails 33 are arranged on the bottom wall of the guide posts 11, two guide blocks 21 are respectively arranged on the left side wall and the right side wall of the lower top plate 2, the four guide blocks 21 are respectively matched with four first guide rails 32, wedge-shaped surfaces matched with inclined top walls on the first guide rails 32 are arranged on the bottom wall of the guide blocks 21, the connecting structure between the guide blocks 21 and the lower top plate 2 is that two clamping grooves 22 are respectively formed on the left side wall and the right side wall of the lower top plate 2, one clamping groove 22 is flush with the rear end wall of the lower top plate 2, one first guide rail 32 on the guide rail fixing plate 3 is movably clamped in the clamping groove 22 and then extends backwards out of the lower top plate 2, a limit groove 23 is reserved between the other clamping groove 22 and the same side wall, the other first guide rail 32 on the guide rail fixing plate 3 is movably clamped in the clamping groove 22 and the limit groove 23, and the limit groove 24 is fixedly arranged in the clamping groove 24 through the limit groove 24.
The cylinder 4 drives the movable plate 31 to drive the two guide rail fixing plates 3 to synchronously move back and forth, when the guide rail fixing plates 3 move forward, the guide blocks 21 move upwards all along the inclined top wall of the first guide rail 32, so that the lower top plate 2 is driven to move upwards all along, the guide columns 11 slide upwards all along the inclined guide surface of the second guide rail 33 to the flat top wall and then slide in parallel, so that the upper top plate 1 is driven to rise for a certain height, the upper top plate 1 and the lower top plate 2 are driven to synchronously rise for a certain height, the upper top plate 1 is not raised any more, the lower top plate 2 continues to rise, when the guide rail fixing plates 3 move backward, the guide blocks 21 move downwards all along the inclined top wall of the first guide rail 32, so that the lower top plate 2 is driven to move downwards all along the inclined guide surface, the guide columns 11 slide in parallel along the flat top wall of the second guide rail 33 until the flat top wall is moved downwards all along, so that the upper top plate 1 is driven to be fixed firstly and then to descend, when the first guide rail 32 abuts against the groove wall of the limit groove 23, and the upper top plate 1 and the lower top plate 2 cannot move backwards again.
As shown in fig. 5, the integrated secondary demoulding mechanism in the injection mould is installed in the injection mould, and the installation structure is that two guide rail fixing plates 3 are clamped in a lower mould base 5 in a sliding way, a plurality of connecting columns 51 are vertically arranged in the lower mould base 5, a plurality of sliding holes are arranged on a lower top plate 2, the lower top plate 2 is clamped on the connecting columns 51 in a sliding way through the sliding holes and is abutted against the lower mould base 5, a core supporting plate 52 is fixedly connected on the connecting columns 51, the sliding holes which are matched with guide columns 11 in a sliding way are arranged on the core supporting plate 52, a core 53 is arranged on the core supporting plate 52, a top shaft 56 is arranged on the lower top plate 2, the top shaft 56 sequentially penetrates through the core supporting plate 52 and the core 53, a core hole which avoids the core 53 is arranged on the upper top plate 1, a demoulding plate 54 is arranged on the core supporting plate 52 and the upper top plate 1, an upper mould 55 is movably arranged on the demoulding plate 54, and in a mould cavity is formed between the mould clamping plate 54, the core 53 and the upper mould 55 when in a mould clamping state. After injection molding, the upper mold 55, the stripper plate 54 and the core 53 are opened, the oil cylinder 4 drives the guide rail fixing plate 3 to slide forward in the lower mold base 5, the upper top plate 1 pushes the stripper plate 54 upwards, meanwhile, the lower top plate 2 pushes the pushing shaft 56 upwards, when the guide post 11 on the upper top plate 1 moves from the inclined guide surface of the second guide rail 33 to the flat top wall of the second guide rail 33, the upper top plate 1 pushes the stripper plate 54 to finish demolding of a product, so that the product is clamped in the stripper plate 54 and separated from the core 53 to finish one-time demolding, as shown in fig. 6. The oil cylinder 4 continues to drive the guide rail fixing plate 3 to slide forwards, the guide post 11 horizontally slides on the flat top wall of the second guide rail 33, the upper top plate 1 and the demoulding plate 54 can not rise any more, and the guide block 21 moves upwards under the guiding action of the inclined top wall of the first guide rail 32, so that the lower top plate 2 is driven to rise continuously, the lower top plate 2 pushes the pushing shaft 56 upwards, and the pushing shaft 56 pushes out a product clamped in the demoulding plate 54 to finish secondary demoulding, as shown in fig. 7. In this embodiment, the structure of the injection mold is a common structure in the art, the upper top plate 1 is provided with core holes for avoiding the cores 53, the lower top plate 2 is provided with slide holes and the top shafts 56, which are conventional in the art, the upper top plate 1 is provided with a corresponding number of core holes according to the number of actual cores 53, and the lower top plate 2 is provided with a corresponding number of top shafts 56, and the number of slide holes on the lower top plate 2 is required to be set according to the actual number of connecting posts 51 between the lower die holder 5 and the core support plate 52.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present utility model without departing from the spirit and scope of the present utility model, and any modifications and equivalents are intended to be included in the scope of the claims of the present utility model.
Claims (5)
1. The integrated secondary demolding mechanism in the injection mold is characterized by comprising an upper top plate, a lower top plate and guide rail fixing plates, wherein the two guide rail fixing plates are arranged in parallel, the two guide rail fixing plates are connected with a movable plate, the movable plate is connected with a driver, two guide rail groups are arranged on each guide rail fixing plate, a first guide rail and a second guide rail are arranged in parallel in one guide rail group, the top wall of the first guide rail is an inclined top wall which is inclined from front to back and from bottom to top, an inclined guide surface which is inclined from bottom to top is arranged between the flat top wall and the front side wall of the second guide rail, four guide posts are downwards arranged around the upper top plate, the four guide posts surround the outer side of the lower top plate, the four guide posts are respectively matched with the four second guide rails, a plurality of core holes are formed in the upper top plate, two guide blocks are respectively arranged on the left side wall and the right side wall of the lower top plate, the four guide blocks are respectively matched with the four first guide rails, and a plurality of wedge-shaped holes are formed in the lower top plate.
2. The integrated secondary stripping mechanism as claimed in claim 1, wherein the oblique top wall of the first guide rail is provided with anti-slip patterns, and the flat top wall and the oblique guide surface of the second guide rail are also provided with anti-slip patterns.
3. The integrated secondary demolding mechanism in the injection mold of claim 1, wherein the connecting structure between the first guide rail and the second guide rail in the guide rail group and the guide rail fixing plate is that the guide rail fixing plate is provided with a mounting groove, the first guide rail and the second guide rail are clamped in the same mounting groove and are connected through bolts, and the slope of the inclined top wall of the first guide rail is the same as the slope of the inclined guide surface of the second guide rail.
4. The integrated secondary demolding mechanism in the injection mold of claim 1, wherein the connecting structure between the guide block and the lower top plate is characterized in that two clamping grooves are formed in the left side wall and the right side wall of the lower top plate, one clamping groove is flush with the rear end wall of the lower top plate, one first guide rail on the guide rail fixing plate is movably clamped in the clamping groove and extends back out of the lower top plate, a limiting groove is reserved between the other clamping groove and the side wall on the same side, the other first guide rail on the guide rail fixing plate is movably clamped in the clamping groove and the limiting groove, a fixing groove is formed in the top wall of the clamping groove, and the guide block is clamped in the fixing groove and is connected through a bolt.
5. The integrated secondary demolding mechanism in the injection mold of claim 1, wherein the driver is an oil cylinder, the oil cylinder is fixed on the fixed plate, a piston rod on the oil cylinder penetrates through the fixed plate and then is connected with the movable plate, a plurality of guide shafts are arranged on the fixed plate, a plurality of guide holes are arranged on the movable plate, and the guide holes are movably sleeved on the guide shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520058816.3U CN223720084U (en) | 2025-01-10 | 2025-01-10 | Integrated secondary demoulding mechanism in injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520058816.3U CN223720084U (en) | 2025-01-10 | 2025-01-10 | Integrated secondary demoulding mechanism in injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223720084U true CN223720084U (en) | 2025-12-26 |
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ID=98124431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520058816.3U Active CN223720084U (en) | 2025-01-10 | 2025-01-10 | Integrated secondary demoulding mechanism in injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223720084U (en) |
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2025
- 2025-01-10 CN CN202520058816.3U patent/CN223720084U/en active Active
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