Injection molding die for seat plate of high chair

Abstract

The utility model relates to mould technical field especially is a kind of seat plate injection moulding mould of high chair, it includes front mould base, two backing plate, front mould plate, female mould core, ceiling, stripping driver, multiple ejector pin, glue nozzle, rear mould base, rear mould plate, male mould core, inner hole forming block, lateral sliding block, side slide driving block, side shift plate, side shift driver and inner groove forming block, be equipped with inclined surface cooperation structure between side slide driving block and lateral sliding block, rear mould base and rear mould plate are connected via equal height screw, and front mould plate, rear mould plate and rear mould base are connected via guide structure;Male mould core and female mould core close die to form seat plate cavity, and inner hole forming block and inner groove forming block can extend into seat plate cavity.The structure of the application is simple, can realize integral injection moulding of the seat plate of high chair, and form inner groove and inner recess on the inner arc wall of seat plate, improve the efficiency of the seat plate of high chair production, simplify the processing flow of the seat plate of high chair production.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an injection molding mold for the seat plate of a high chair. Background Technology

[0002] Injection molding involves molten plastic material and injecting it into a mold cavity. The molten plastic enters the mold and, upon cooling, is molded into a specific shape according to the mold cavity. The resulting shape is often the final product, requiring no further processing before installation or use as a finished product. Undercuts, internal holes, and internal grooves are protrusions or recesses formed on plastic parts to facilitate assembly. After molding, they cannot slide out along the mold opening direction, hindering the opening of the front and rear molds (the opening of the fixed mold and the moving mold). Typically, a fixed mold or moving mold slider mechanism, or a slanted ejector mechanism, is used to demold undercuts, internal holes, and internal grooves.

[0003] In the prior art, since the seat plate of a high chair has internal holes and internal grooves, traditional injection molds usually use the ejector pins of the rear mold to eject the molded product. However, the inner wall of the seat plate of a high chair is curved, and the internal holes and internal grooves are located on the inner curved surface. Therefore, after the mold is opened, the seat plate will stick to the cavity core of the front mold, making it difficult to demold the seat plate.

[0004] Among existing patents, Chinese patent application number 202211081154.9 discloses a seat seat injection mold and demolding method, including: a front mold assembly, which includes a front mold base, front mold feet, and a front mold plate connected sequentially from top to bottom. The front mold base has a main runner. There are two front mold feet, and a front mold ejector plate is provided between the two front mold feet. The front mold ejector plate is provided with a front mold ejector pin. Multiple through holes are evenly distributed along the main runner on the front mold ejector plate, and a slanted ejector demolding mechanism is fixedly installed in the through holes; and a rear mold assembly, which includes a rear mold plate, a rear mold foot, and a rear mold base connected sequentially from top to bottom. There are two rear mold feet, and a rear mold plate is provided between the two rear mold feet. The assembly includes an ejector plate and a rear mold ejector plate, wherein the rear mold ejector plate is stacked on top of the rear mold ejector plate and is provided with a rear mold ejector pin; and a fastening assembly, which is located on the outside of the front mold module and the rear mold module. The fastening assembly includes a T-shaped fastener, a fastening sleeve, and a fastener lock. One end of the T-shaped fastener is fixedly connected to the rear mold plate, and the other end is provided with a hook-shaped part, which is fastened to the fastener lock. The fastening sleeve is provided with a sliding groove, and the fastening sleeve is slidably fitted onto the outside of the T-shaped fastener through the sliding groove. The fastener lock is fixedly installed on the two side walls of the front mold ejector plate by screws, and the side of the fastener lock near the hook-shaped part is provided with an inclined surface. The fastening sleeve is provided with a recessed part that fits against the inclined surface. This patent document can avoid the problem of the injection molded workpiece sticking to the front mold when it is demolded, but it requires the setting of front mold ejector pins, rear mold ejector pins, inclined ejector demolding mechanism and fastening assembly, etc., which makes the structure of the injection mold complex and makes it impossible to form inner holes and inner grooves on the inner arc surface of the seat plate, so it is impossible to produce the seat plate of the high chair. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide an injection molding mold for the seat of a high chair.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high chair seat injection molding mold includes a front mold base, two parallel pads mounted on the rear side of the front mold base, a front template mounted on the two pads, a cavity core embedded in the front template, a top plate movably disposed between the front mold base and the front template, a demolding actuator mounted on the side wall of the front template and driven by the top plate, multiple ejector pins mounted on the top plate and slidingly penetrating the front template and the cavity core, a sprue mounted on the front mold base and penetrating the top plate, the front template, and the cavity core, a rear mold base corresponding to the front mold base, a rear template disposed on the front side of the rear mold base, a punch core embedded in the rear template and used to mate with the cavity core, an inner hole forming block laterally slidably connected to the punch core, and a set of The mold consists of a lateral slider connected to the inner hole forming block and slidably within the punch core; a lateral sliding drive block connected to the lateral slider and slidably passing through the rear template and fixedly connected to the rear mold base; a lateral shift plate located outside the punch core and slidably connected to the rear template; a lateral shift driver mounted on the rear template for driving the lateral shift plate; and an inner groove forming block mounted on the lateral shift plate and slidably connected to the punch core. A beveled fit structure is provided between the lateral sliding drive block and the lateral slider. The rear mold base and the rear template are slidably connected via equal-height screws. The front template, rear template, and rear mold base are slidably connected via a guide structure. The punch core and the die core close to form a seat plate cavity, and the inner hole forming block and the inner groove forming block can extend into the seat plate cavity.

[0008] Furthermore, the inclined surface mating structure includes an inclined slide rail and an inclined slide groove that slides with the inclined slide rail. The inclined slide rail is disposed on the side sliding drive block and / or the side slider, and correspondingly, the inclined slide groove is disposed on the side slider and / or the side sliding drive block.

[0009] Furthermore, the rear side of the punch core is recessed with a drive hole, the inclined surface mating structure is located in the drive hole, the drive end of the side sliding drive block extends into the drive hole, and the lateral slider is laterally slidably disposed in the drive hole.

[0010] Furthermore, the edge of the punch core is provided with a side sliding hole that communicates with the drive hole, and the inner hole forming block is telescopically slidably disposed in the side sliding hole.

[0011] Furthermore, a side guide hole is provided on the side of the punch core, which extends to the edge of the punch core's profile, and the inner groove forming block is telescopically slidably disposed within the side guide hole.

[0012] Furthermore, the rear mold base is equipped with a locking block that slides through the rear mold plate, and the side plate has a locking hole into which the locking block can be inserted.

[0013] Furthermore, the side wall of the front template is equipped with a front mold closing positioning component, and the side wall of the rear template is equipped with a rear mold closing positioning component, with the front mold closing positioning component and the rear mold closing positioning component being concave and convex respectively.

[0014] Furthermore, the rear template is provided with a guide groove, and the side sliding plate is provided with a guide slider, which slides in conjunction with the guide groove.

[0015] Furthermore, the front template is equipped with a limit switch located on the outside of the punch core, and the side shift plate is equipped with a trigger block for triggering the limit switch. The limit switch is electrically connected to the side shift driver.

[0016] Furthermore, the front template and the die core are equipped with a front cooling mechanism, and the rear template and the punch core are equipped with a rear cooling mechanism.

[0017] The beneficial effects of this utility model are as follows: In practical applications, when this seat plate injection molding mold is installed on an injection molding machine, the injection molding machine can not only drive the front and rear mold plates to open and close (i.e., the cavity core and the punch core to open and close), but also drive the rear mold base and the rear mold plate to open and close. Initially, the rear mold base and the rear mold plate are in the open mold state, the front and rear mold plates are in the open mold state, and the cavity core and the punch core are in the open mold state. When it is necessary to produce the seat plate of a high chair, the side-shifting driver drives the side-shifting plate, along with the inner groove forming block, to move inward, so that the inner groove forming block extends into the punch core and is exposed on the punch core. The molded surface is then filled. The injection molding machine drives the base plate to close the mold, causing the rear mold base and rear template to close first. As the rear mold base moves closer to the rear template, the side sliding drive block on the rear mold base drives the side slider, along with the inner hole forming block, to extend beyond the molded surface of the punch core via the inclined surface mating structure. When the rear mold base and rear template are completely closed, the rear mold base and front mold base gradually close until the die core and punch core close and form the base plate cavity. The inner groove forming block and inner hole forming block are located inside the base plate cavity. At this time, the injection molding machine injects molten material into the base plate cavity through the sprue to form the high chair inside the base plate cavity. The base plate has an inner groove forming block that creates an inner groove on the inner arc wall of the base plate, and an inner hole forming block that creates an inner concave hole on the inner arc wall of the base plate. After the base plate in the cavity is solidified, the injection molding machine drives the injection molding mold of this base plate to open. The rear mold base and the rear template open first. During the opening process of the rear mold base and the rear template, the rear mold base drives the side sliding drive block to move outward. The outwardly moving side sliding drive block drives the lateral slider through the inclined surface mating structure, which in turn drives the inner hole forming block to slide laterally and retract into the punch core, so as to realize the demolding of the inner hole forming block from the base plate. When the rear mold base and the rear template open, the molded block is demolded. After the mold plate is fully opened, the side-shifting driver drives the side-shifting plate, along with the inner groove forming block, to move outward, causing the inner groove forming block to be pulled out of the punch core, thus achieving demolding of the inner groove forming block from the seat plate. Subsequently, the front and rear mold plates gradually open, and the punch core gradually separates from the seat plate. When the front and rear mold plates are fully opened, the punch core separates from the seat plate, and the seat plate remains inside the concave mold core. Then, the demolding driver drives the top plate to move closer to the front mold plate, and the front mold plate drives multiple ejector pins to move into the inner cavity of the inner mold core, causing the multiple ejector pins to push the seat plate out of the concave mold core, thus achieving demolding of the seat plate. This utility model has a simple structure and can achieve one-piece injection molding of the seat plate of a high chair. It also forms an inner groove and an inner hole on the inner arc wall of the seat plate, improving the efficiency of producing high chair seat plates, simplifying the processing flow of high chair seat plates, and reducing the labor intensity and cost of manual labor. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the rear mold base, rear template, punch core, guide sleeve, guide pillar, rear mold closing positioning component, side shift plate, rear cooling mechanism, and side shift driver of this utility model.

[0020] Figure 3 for Figure 2 A three-dimensional structural diagram from another perspective.

[0021] Figure 4 This is a three-dimensional structural diagram of the rear mold base, rear template, guide sleeve, guide pillar, rear mold closing positioning component, inner hole forming block, side slider, side sliding drive block, cover plate, rear cooling mechanism and locking block of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the front mold base, front template, backing plate, concave mold core, demolding driver, front cooling mechanism, guide sleeve, top plate, and ejector pin of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the front mold base, front template, backing plate, injection nozzle, top plate, ejector pin, front mold closing positioning component, guide pillar, demolding driver, and front cooling mechanism of this utility model.

[0024] Figure 7 This is a three-dimensional structural diagram of the inner hole forming block, side slider, side sliding drive block, cover plate and inclined surface mating structure of this utility model.

[0025] Figure 8 For this Figure 7 A schematic diagram of its decomposed structure.

[0026] Figure 9 This is an exploded structural diagram of the side-shifting plate, side-shifting driver, inner groove forming block, and locking block of this utility model.

[0027] Figure 10 This is a three-dimensional structural diagram of the punch core of this utility model.

[0028] Figure 11 This is a three-dimensional structural schematic diagram of the punch core of this utility model from another perspective.

[0029] Figure 12 This is a three-dimensional structural diagram of the seat of the high chair in this embodiment.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Front mold base; 2. Backing plate; 3. Front template; 4. Die core; 5. Ejector plate; 6. Demolding actuator; 7. Ejector pin; 8. Inlet nozzle; 9. Rear mold base; 10. Rear template; 11. Punch core; 12. Inner hole forming block; 13. Side slider; 14. Side sliding drive block; 15. Side shift plate; 16. Side shift actuator; 17. Angled surface mating structure; 19. Guide structure; 20. Angled slide rail; 21. Angled slide groove; 22. 23. Drive hole; 24. Cover plate; 25. Side sliding hole; 26. Side guide hole; 27. Locking block; 28. Locking hole; 29. ​​Front mold closing positioning component; 30. Rear mold closing positioning component; 31. Inner groove forming block; 32. Guide slider; 33. Limit switch; 34. Trigger block; 35. Front cooling mechanism; 36. Rear cooling mechanism; 37. Guide post; 38. Seat plate; 39. Inner concave hole; 40. Inner groove; 41. Guide rod; 42. Guide sleeve. Detailed Implementation

[0032] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0033] like Figures 1 to 12 As shown, this utility model provides an injection molding mold for a high chair seat, which includes a front mold base 1, two pads 2 mounted on the rear side of the front mold base 1 and arranged in parallel, a front template 3 mounted on the two pads 2, a concave mold core 4 embedded in the front template 3, a top plate 5 movably disposed between the front mold base 1 and the front template 3, a demolding actuator 6 mounted on the side wall of the front template 3 and drivenly connected to the top plate 5, a plurality of ejector pins 7 mounted on the top plate 5 and slidingly penetrating the front template 3 and the concave mold core 4, a sprue 8 mounted on the front mold base 1 and penetrating the top plate 5, the front template 3 and the concave mold core 4, a rear mold base 9 corresponding to the front mold base 1, a rear template 10 disposed on the front side of the rear mold base 9, a punch 11 embedded in the rear template 10 and used to cooperate with the concave mold core 4, an inner hole forming block 12 laterally slidably connected to the punch 11, and a laterally sliding inner hole forming block 12 disposed on the inner hole forming block 12. The system includes a lateral slider 13 connected to the punch core 11, a lateral sliding drive block 14 driven by the lateral slider 13 and slidably passing through the rear template 10 and fixedly connected to the rear mold base 9, a lateral shift plate 15 located outside the punch core 11 and slidably connected to the rear template 10, a lateral shift driver 16 installed on the rear template 10 and used to drive the lateral shift plate 15 to move, and an inner groove forming block 30 installed on the lateral shift plate 15 and slidably connected to the punch core 11. A sloped fit structure 17 is provided between the lateral sliding drive block 14 and the lateral slider 13. The rear mold base 9 and the rear template 10 are slidably connected by equal-height screws. The front template 3, the rear template 10, and the rear mold base 9 are slidably connected by a guide structure 19. The punch core 11 and the die core 4 are closed to form the seat plate 37 cavity. The inner hole forming block 12 and the inner groove forming block 30 can extend into the seat plate 37 cavity. Specifically, the equal-height screw is installed on the rear mold base 9.

[0034] In practical applications, the injection molding mold for this seat plate is installed on an injection molding machine. The injection molding machine can not only drive the front mold plate 3 and the rear mold plate 10 to open and close, i.e., the cavity core 4 and the punch core 11 to open and close, but also drive the rear mold base 9 and the rear mold plate 10 to open and close. Initially, the rear mold base 9 and the rear mold plate 10 are in the open mold state, the front mold plate 3 and the rear mold plate 10 are in the open mold state, and the cavity core 4 and the punch core 11 are in the open mold state. When it is necessary to produce the seat plate 37 of the high chair, the side shift driver 16 drives the side shift plate 15 and the inner groove forming block 30 to move inward, so that the inner groove forming block 30 extends into the punch core 11 and is exposed on the surface of the punch core 11. Then the injection molding machine drives the seat plate 37 to open and close. In the plate injection molding process, the rear mold base 9 and the rear template 10 close first. As the rear mold base 9 moves closer to the rear template 10, the side sliding drive block 14 on the rear mold base 9 drives the side slider 13, along with the inner hole forming block 12, to extend out of the mold core 11 via the inclined surface mating structure 17. After the rear mold base 9 and the rear template 10 are completely closed, the rear mold base 9 and the front mold base 1 gradually close until the concave mold core 4 and the convex mold core 11 close and form the seat plate 37 cavity. The inner groove forming block 30 and the inner hole forming block 12 are located in the seat plate 37 cavity. At this time, the injection molding machine injects molten material into the seat plate 37 cavity through the injection nozzle 8 to form the seat plate 37 of the high chair in the seat plate 37 cavity. Among them, the inner groove forming block 30 is located in the seat plate 37 cavity. Block 30 forms an inner groove 39 on the inner arc wall of the seat plate 37, and inner hole forming block 12 forms an inner concave hole 38 on the inner arc wall of the seat plate 37. After the seat plate 37 in the cavity is solidified, the injection molding machine drives the injection molding mold of this seat plate to open. The rear mold base 9 and the rear template 10 open first. During the opening process of the rear mold base 9 and the rear template 10, the rear mold base 9 drives the side sliding drive block 14 to move outward. The outwardly moving side sliding drive block 14 drives the side slider 13 through the inclined surface mating structure 17, which in turn drives the inner hole forming block 12 to slide laterally and retract into the punch core 11, so as to realize the demolding of the inner hole forming block 12 and the seat plate 37. When the rear mold base 9 and the rear template 10 are fully opened... Then, the side-shifting driver 16 drives the side-shifting plate 15, along with the inner groove forming block 30, to move outward, causing the inner groove forming block 30 to be pulled away from the punch core 11, thereby achieving demolding of the inner groove forming block 30 and the seat plate 37. Subsequently, the front template 3 and the rear template 10 gradually open the mold, and the punch core 11 will gradually separate from the seat plate 37. When the front template 3 and the rear template 10 are fully open, the punch core 11 separates from the seat plate 37, and the seat plate 37 remains in the cavity core 4. Then, the demolding driver 6 drives the top plate 5 to move closer to the front template 3. The front template 3 drives multiple ejector pins 7 to move into the inner cavity of the inner mold core, so that the multiple ejector pins 7 push out the seat plate 37 in the cavity core 4, thereby achieving demolding of the seat plate 37. This utility model has a simple structure and can realize the one-piece injection molding of the seat plate 37 of the high chair. It also forms an inner groove 39 and an inner hole 38 on the inner arc wall of the seat plate 37, which improves the efficiency of producing the seat plate 37 of the high chair, simplifies the processing flow of producing the seat plate 37 of the high chair, and reduces the labor intensity and cost of manual labor.

[0035] Specifically, there are two inner hole forming blocks 12 and two inner groove forming blocks 30, and the two inner hole forming blocks 12 and the two inner groove forming blocks 30 are symmetrically arranged on the punch core 11.

[0036] Specifically, both the demolding driver 6 and the side-shifting driver 16 can be cylinders.

[0037] In this embodiment, the inclined surface mating structure 17 includes an inclined slide rail 20 and an inclined slide groove 21 that slides with the inclined slide rail 20. The inclined slide rail 20 is disposed on the side sliding drive block 14 and / or the side slider 13, and correspondingly, the inclined slide groove 21 is disposed on the side slider 13 and / or the side sliding drive block 14. In practical applications, as the rear mold base 9 opens and closes, the inclined slide rail 20 and / or the inclined slide groove 21 on the side sliding drive block 14 slides with the inclined slide groove 21 and / or the inclined slide rail 20 on the side slider 13, so that the forward and backward movement of the side sliding drive block 14 can drive the side slider 13 and the inner hole forming block 12 to slide laterally back and forth, thereby allowing the inner hole forming block 12 to extend out of the mold core 11 or retract into the mold core 11.

[0038] In this embodiment, a driving hole 22 is recessed on the rear side of the punch core 11, and an inclined mating structure 17 is located inside the driving hole 22. The driving end of the side sliding driving block 14 extends into the driving hole 22, and the lateral slider 13 is laterally slidably disposed inside the driving hole 22. The inner wall of the driving hole 22 and the side wall of the lateral slider 13 are slidably mated, so that the lateral slider 13 can stably slide laterally inside the driving hole 22.

[0039] Specifically, the port of the drive hole 22 is covered with a cover plate 23, and the side sliding drive block 14 slides through the cover plate 23. The cover plate 23 confines the side slider 13 within the drive hole 22, so that the side slider 13 can only slide laterally along the drive hole 22, and can prevent the side slider 13 from separating from the punch core 11, which facilitates the disassembly, assembly and maintenance of the side sliding drive block 14 and the side slider 13.

[0040] In this embodiment, the edge of the punch core 11 is provided with a sliding hole 24 that communicates with the drive hole 22, and the inner hole forming block 12 is telescopically slidably disposed within the sliding hole 24. When the inner hole forming block 12 moves laterally back and forth, the sliding hole 24 guides the inner hole forming block 12, improving the stability of the lateral back and forth movement of the inner hole forming block 12; before injection molding, the inner hole forming block 12 extends out of the surface of the punch core 11 through the sliding hole 24; after injection molding, the inner hole forming block 12 retracts into the sliding hole 24.

[0041] In this embodiment, a side guide hole 25 is provided on the side of the punch core 11, extending to the edge of the molded surface of the punch core 11. The inner groove forming block 30 is telescopically slidably disposed within the side guide hole 25. When the inner groove forming block 30 moves laterally back and forth, the side guide hole 25 guides the inner groove forming block 30, improving the stability of the lateral back and forth movement of the inner groove forming block 30. Before injection molding, the inner groove forming block 30 extends into the punch core 11 through the side guide hole 25 and is exposed on the molded surface of the punch core 11. After injection molding, the inner groove forming block 30 moves out of the side guide hole 25.

[0042] In this embodiment, the rear mold base 9 is equipped with a locking block 26, which slides through the rear template 10. The side shift plate 15 has a locking hole 27, into which the locking block 26 can be inserted. After the inner groove forming block 30 extends into the punch core 11 through the side guide hole 25 and is exposed on the surface of the punch core 11, the injection molding machine drives the base plate to close the injection molding mold, so that the locking block 26 is inserted into the locking hole 27 to lock the side shift plate 15, ensuring the positional accuracy and stability of the inner groove forming block 30. After the rear mold base 9 and the rear template 10 are opened, the locking block 26 moves out of the locking hole 27 to unlock the side shift plate 15. At this time, the side shift driver 16 drives the side shift plate 15 and the inner groove forming block 30 to move out of the side guide hole 25, thereby realizing the demolding of the inner groove forming block 30 from the base plate 37.

[0043] In this embodiment, the side wall of the front template 3 is equipped with a front mold closing positioning member 28, and the side wall of the rear template 10 is equipped with a rear mold closing positioning member 29. The front mold closing positioning member 28 and the rear mold closing positioning member 29 are fitted together. When the front template 3 and the rear template 10 are fully closed, the front mold closing positioning member 28 and the rear mold closing positioning member 29 are fitted together to ensure the mold closing position accuracy and stability of the front template 3 and the rear template 10.

[0044] In this embodiment, the rear template 10 is provided with a guide groove, and the side-moving plate 15 is provided with a guide slider 31, which slides in conjunction with the guide groove. When the side-moving plate 15 moves laterally back and forth on the front side of the rear template 10, the guide slider 31 slides in conjunction with the guide groove, which improves the movement stability of the side-moving plate 15.

[0045] In this embodiment, the front template 3 is equipped with a limit switch 32, which is located outside the punch core 11. The side shift plate 15 is equipped with a trigger block 33, which is used to trigger the limit switch 32. The limit switch 32 is electrically connected to the side shift driver 16. During the inward movement of the side shift plate 15, when the trigger block 33 abuts against the limit switch 32 to trigger the limit switch 32, it indicates that the side shift plate 15 has moved inward to the correct position, that is, the inner groove forming block 30 has moved inward to the correct position. At this time, the limit switch 32 sends a feedback signal to the side shift driver 16, causing the side shift driver 16 to stop driving the side shift plate 15 to move inward, thus ensuring the positional accuracy of the inner groove forming block 30 extending into the punch core 11.

[0046] In this embodiment, the front template 3 and the concave mold core 4 are equipped with a front cooling mechanism 34, and the rear template 10 and the convex mold core 11 are equipped with a rear cooling mechanism 35. After the injection molding machine fills the cavity of the seat plate 37 with molten material, the front cooling mechanism 34 and the rear cooling mechanism 35 are activated to cool and solidify the seat plate 37 inside the cavity of the seat plate 37.

[0047] Specifically, the front cooling mechanism 34 and the rear cooling mechanism 35 can adopt the water-cooling structure in the prior art.

[0048] Specifically, the rear mold base 9 is provided with a connecting hole, which facilitates the assembly of the rear mold base 9 with the injection molding machine.

[0049] Specifically, the guide structure 19 includes a guide sleeve 41 and a guide rod 40. The front template 3 and the rear template 10 are both fitted with guide sleeves 41, and the guide rod 40 is installed on the rear mold base 9. The guide rod 40 can slide and cooperate with the guide sleeves 41 of the front template 3 and the guide sleeves 41 of the rear template 10.

[0050] Specifically, the front template 3 is equipped with a front limit block, and the rear template 10 is equipped with a rear limit block; when the front template 3 and the rear template 10 are fully closed, the front limit block and the rear limit block abut against each other to limit the closing of the front template 3 and the rear template 10.

[0051] Specifically, a guide post 36 is installed on the rear side of the front mold base 1. The guide post 36 slides through the top plate 5 and is located between the front mold base 1 and the front template 3. The guide post 36 guides the top plate 5 and improves the stability of the reciprocating movement of the top plate 5.

[0052] All technical features in this embodiment can be freely combined according to actual needs.

[0053] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An injection molding mold for the seat of a high chair, characterized in that: Includes a front mold base (1), two parallel pads (2) mounted on the rear side of the front mold base (1), a front mold plate (3) mounted on the two pads (2), a cavity mold core (4) embedded in the front mold plate (3), a top plate (5) movably disposed between the front mold base (1) and the front mold plate (3), a demolding actuator (6) mounted on the side wall of the front mold plate (3) and drivenly connected to the top plate (5), and multiple ejector pins mounted on the top plate (5) and slidingly penetrating the front mold plate (3) and the cavity mold core (4). (7) A glue inlet (8) installed in the front mold base (1) and penetrating the top plate (5), the front template (3) and the concave mold core (4); a rear mold base (9) corresponding to the front mold base (1); a rear template (10) set on the front side of the rear mold base (9); a punch (11) embedded in the rear template (10) and used to cooperate with the concave mold core (4); an inner hole forming block (12) slidably connected to the punch (11); and a slidably connected inner hole forming block (12) to the concave mold core (4). The components include a lateral slider (13) inside the punch core (11), a lateral sliding drive block (14) that is driven and slidably connected to the lateral slider (13) and passes through the rear template (10) and is fixedly connected to the rear mold base (9), a side-shifting plate (15) located outside the punch core (11) and slidably connected to the rear template (10), a side-shifting driver (16) installed on the rear template (10) and used to drive the side-shifting plate (15) to move, and an inner groove installed on the side-shifting plate (15) and slidably connected to the punch core (11). A beveled fit structure (17) is provided between the mold block (30), the side sliding drive block (14) and the side slider (13), the rear mold base (9) and the rear template (10) are slidably connected by equal height screws, and the front template (3), the rear template (10) and the rear mold base (9) are slidably connected by the guide structure (19); the punch core (11) and the die core (4) are molded together to form the seat plate (37) cavity, and the inner hole forming block (12) and the inner groove forming block (30) can extend into the seat plate (37) cavity.

2. The injection molding mold for the seat of a high chair according to claim 1, characterized in that: The inclined surface mating structure (17) includes an inclined slide rail (20) and an inclined slide groove (21) that slides with the inclined slide rail (20). The inclined slide rail (20) is disposed on the side sliding drive block (14) and / or the side slider (13). Correspondingly, the inclined slide groove (21) is disposed on the side slider (13) and / or the side sliding drive block (14).

3. The injection molding mold for the seat of a high chair according to claim 1 or 2, characterized in that: The rear side of the punch core (11) is recessed with a drive hole (22), the inclined surface mating structure (17) is located in the drive hole (22), the drive end of the side sliding drive block (14) extends into the drive hole (22), and the side slider (13) is laterally slidably disposed in the drive hole (22).

4. The injection molding mold for the seat of a high chair according to claim 3, characterized in that: The punch core (11) has a side sliding hole (24) that communicates with the drive hole (22) on its surface edge, and the inner hole forming block (12) is telescopically slidably disposed in the side sliding hole (24).

5. The injection molding mold for the seat of a high chair according to claim 1, characterized in that: The side of the punch core (11) is provided with a side guide hole (25), which extends to the edge of the punch core (11) and the inner groove forming block (30) is telescopically slidably disposed in the side guide hole (25).

6. The injection molding mold for the seat of a high chair according to claim 1, characterized in that: The rear mold base (9) is equipped with a locking block (26), which slides through the rear template (10). The side plate (15) has a locking hole (27), and the locking block (26) can be inserted into the locking hole (27).

7. The injection molding mold for the seat of a high chair according to claim 1, characterized in that: The front mold template (3) is equipped with a front mold closing positioning part (28) on its side wall, and the rear mold template (10) is equipped with a rear mold closing positioning part (29) on its side wall. The front mold closing positioning part (28) and the rear mold closing positioning part (29) are matched with each other.

8. The injection molding mold for the seat of a high chair according to claim 1, characterized in that: The rear template (10) is provided with a guide groove, and the side sliding plate (15) is provided with a guide slider (31), which slides in conjunction with the guide groove.

9. The injection molding mold for the seat of a high chair according to claim 1, characterized in that: The front template (3) is equipped with a limit switch (32), which is located on the outside of the punch core (11). The side shift plate (15) is equipped with a trigger block (33), which is used to trigger the limit switch (32). The limit switch (32) is electrically connected to the side shift driver (16).

10. The injection molding mold for the seat of a high chair according to claim 1, characterized in that: The front template (3) and the die core (4) are equipped with a front cooling mechanism (34), and the rear template (10) and the punch core (11) are equipped with a rear cooling mechanism (35).

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