A tray injection mold for a child's dining chair

Abstract

The utility model discloses a meal tray injection mold of children dining chair, it includes upper fixed plate, lower fixed plate, upper template, lower template, upper mould core and lower mould core, upper fixed plate upper template upper mould core lower mould core lower template with lower fixed plate is from top to bottom arrangement and places, the lower end surface of upper template is equipped with upper and placed the groove, upper mould core inserts upper and placed the groove, the upper end surface of lower template is equipped with lower and placed the groove, lower mould core inserts lower and placed the groove, lower mould core includes four spliced mould cores, four spliced mould cores divide the cavity of lower mould core. The present application has the effect of improving the qualified rate of meal tray production of injection mold.

Description

Technical Field

[0001] This application relates to the field of injection mold technology, and in particular to an injection mold for a tray for a children's high chair. Background Technology

[0002] Injection molding involves injecting molten plastic into the cavity of a mold. After cooling for a certain period, the molten plastic solidifies to form the desired product. Children's high chair trays are made of plastic, and molten plastic is injected into the mold using an injection molding machine. The relatively high edge of a typical children's high chair tray results in a deep mold cavity. After the tray is molded, when debris falls into the cavity, the greater cavity depth makes it difficult to remove the debris, affecting subsequent production and reducing the yield rate of the plastic molded trays. Utility Model Content

[0003] The purpose of this utility model is to provide an injection mold for a children's dining chair tray, addressing the shortcomings and deficiencies of the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The device includes an upper fixed plate, a lower fixed plate, an upper template, a lower template, an upper mold core, and a lower mold core. The upper fixed plate, the upper template, the upper mold core, the lower mold core, the lower template, and the lower fixed plate are arranged from top to bottom. The lower end face of the upper template has an upper placement groove, and the upper mold core is embedded in the upper placement groove. The upper end face of the lower template has a lower placement groove, and the lower mold core is embedded in the lower placement groove. The lower mold core includes four spliced ​​mold cores, which divide the cavity of the lower mold core.

[0005] Preferably, the upper mold core has a feed inlet, and the upper mold core includes two sliding mold cores that can divide the feed inlet.

[0006] Preferably, the four splicing mold cores are slidably moved into the lower placement groove.

[0007] Preferably, the lower template is provided with a propulsion cylinder on each of its two side walls, and the output end of the propulsion cylinder is provided with a propulsion plate, which can act on two adjacent splicing mold cores respectively.

[0008] Preferably, the push plate includes two push plates, each corresponding to one of the two adjacent splicing mold cores, and the sliding direction of the push plates and the splicing mold cores is perpendicular to each other.

[0009] Preferably, a push spring is provided between the sidewall of the upper placement groove and the sliding mold core, and the push spring drives the two sliding mold cores to move closer to each other and fit together.

[0010] Preferably, the upper template has adjustment screw holes on its corresponding two side walls, and an adjustment screw is threaded into the adjustment screw hole. One end of the push spring abuts against the inner end of the adjustment screw.

[0011] In summary, the beneficial technical effects of this application are as follows: After the injection mold has started working, the injection molding machine separates the upper and lower mold plates. Then, driven by the push cylinder, the push plate moves, causing the four spliced ​​mold cores to move away from each other. This divides the cavity of the lower mold core into four parts, making it easier to clean impurities inside the cavity. Afterward, the push cylinder pushes the push plate, causing the four spliced ​​mold cores to come closer together and splice into a complete lower mold core. This maintains the cleanliness of the cavity inside the lower mold core and reduces the probability of defective products in subsequent production of the injection mold. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the injection mold of this utility model; Figure 2 This is a cross-sectional schematic diagram of the injection mold of this utility model; Figure 3 This is an exploded view of the lower template and lower mold core of this utility model; Figure 4 This is an exploded view of the upper template and upper mold core of this utility model.

[0013] In the diagram: 1. Upper fixed plate; 2. Lower fixed plate; 3. Upper template; 4. Lower template; 5. Upper mold core; 6. Lower mold core; 7. Upper placement slot; 8. Lower placement slot; 9. Splicing mold core; 10. Push cylinder; 11. Push plate; 12. Push plate; 13. Limiting slide bar; 14. Limiting slide groove; 15. Inlet; 16. Sprue sleeve; 17. Sliding mold core; 18. Adjusting screw hole; 19. Adjusting screw; 20. Embedding slot; 21. Push spring; 22. Guide rod; 23. Guide hole. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] This application discloses an injection mold for a tray of a children's high chair.

[0016] Reference Figure 1 and Figure 2It includes an upper fixing plate 1, a lower fixing plate 2, an upper template 3, a lower template 4, an upper mold core 5, and a lower mold core 6. The upper fixing plate 1, the upper template 3, the upper mold core 5, the lower mold core 6, the lower template 4, and the lower fixing plate 2 are arranged from top to bottom. The lower end face of the upper template 3 is provided with an upper placement groove 7, and the upper mold core 5 is embedded in the upper placement groove 7. The upper end face of the lower template 4 is provided with a lower placement groove 8, and the lower mold core 6 is embedded in the lower placement groove 8. The upper template 3 is fixed to the upper fixing plate 1 by bolts, and the lower template 4 is fixed to the lower fixing plate 2 by bolts.

[0017] Reference Figure 3 The lower mold core 6 includes four spliced ​​mold cores 9, which slide at the bottom of the lower placement groove 8 respectively. The four spliced ​​mold cores 9 slide horizontally, and the four spliced ​​mold cores 9 move closer or further away from each other. The four spliced ​​mold cores 9 can divide the cavity into four parts and cut off the cavity, thereby facilitating the removal of impurities in the cavity.

[0018] Two corresponding outer sidewalls of the lower template 4 are respectively fixed with a push cylinder 10. The output end of the push cylinder 10 passes into the lower placement groove 8. The output end of the push cylinder 10 is fixed with a push plate 11. The push plate 11 includes two push plates 12. One end of the two push plates 12 is integrally set. The push plate 11 is located between two splicing mold cores 9. The two push plates 12 correspond to two adjacent splicing mold cores 9 respectively. The longitudinal section of the push plate 11 is "V" shaped. The sidewall of the push plate 12 is integrally set with a limiting slide bar 13 along the length direction. The sidewall of the splicing mold core 9 is provided with a limiting slide groove 14 for the limiting slide bar 13 to slide. The limiting slide groove 14 is perpendicular to the sliding direction of the splicing mold core 9.

[0019] Reference Figure 4 The upper mold core 5 has a feed inlet 15 on its side wall, and the upper mold plate 3 has a mounting hole on its side wall. A sprue sleeve 16 is installed in the mounting hole, and the lower end of the sprue sleeve 16 is inserted into the feed inlet 15. The upper mold core 5 includes two sliding mold cores 17, which can vertically divide the feed inlet 15. The corresponding two side walls of the upper mold plate 3 have adjustment screw holes 18, and an adjustment screw 19 is threaded into the adjustment screw hole 18. One end face of the sliding mold core 17 has an insert groove 20, and a push spring 21 is placed between the insert groove 20 and the adjustment screw 19. Two guide rods 22 are inserted and fixed into the corresponding two side walls of the upper mold plate 3. Two guide holes 23 are opened on one end face of the sliding mold core 17, and one end of the guide rod 22 is inserted and slid into the guide hole 23.

[0020] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An injection mold for a child's high chair tray, comprising an upper fixing plate (1), a lower fixing plate (2), an upper template (3), a lower template (4), an upper mold core (5), and a lower mold core (6), wherein the upper fixing plate (1), the upper template (3), the upper mold core (5), the lower mold core (6), the lower template (4), and the lower fixing plate (2) are arranged from top to bottom, characterized in that: The upper template (3) has an upper placement groove (7) on its lower end face. The upper mold core (5) is embedded in the upper placement groove (7). The lower template (4) has a lower placement groove (8) on its upper end face. The lower mold core (6) is embedded in the lower placement groove (8). The lower mold core (6) includes four splicing mold cores (9). The four splicing mold cores (9) divide the cavity of the lower mold core (6).

2. The injection mold for a child's high chair tray according to claim 1, characterized in that, The upper mold core (5) has a feed inlet (15), and the upper mold core (5) includes two sliding mold cores (17), which can divide the feed inlet (15).

3. The injection mold for a child's high chair tray according to claim 1, characterized in that, The four splicing mold cores (9) are respectively slid into the lower placement groove (8).

4. The injection mold for a child's high chair tray according to claim 1, characterized in that, The lower template (4) is provided with a propulsion cylinder (10) on each of its two side walls. The output end of the propulsion cylinder (10) is provided with a propulsion plate (11). The propulsion plate (11) can act on two adjacent splicing mold cores (9).

5. The injection mold for a child's high chair tray according to claim 4, characterized in that, The push plate (11) includes two push plates (12), which correspond to two adjacent splicing mold cores (9) respectively. The sliding direction of the push plate (12) and the splicing mold core (9) is perpendicular to each other.

6. The injection mold for a child's high chair tray according to claim 2, characterized in that, A push spring (21) is provided between the side wall of the upper placement groove (7) and the sliding mold core (17), and the push spring (21) drives the two sliding mold cores (17) to approach and fit together.

7. The injection mold for a child's high chair tray according to claim 6, characterized in that... The upper template (3) has adjustment screw holes (18) on its corresponding two side walls. The adjustment screw holes (18) are internally threaded with adjustment screws (19). One end of the push spring (21) abuts against the inner end of the adjustment screw (19).

Images