Foaming material forming mold

Abstract

The utility model discloses a foaming material forming die, which comprises a mounting seat, an upper die and a lower die, the bottom of the mounting seat is provided with an opening, the upper die and the lower die are arranged on the mounting seat up and down, the lower die is provided with a plurality of ejection holes, and the upper die is arranged on the mounting seat in a liftable manner; the driving equipment is arranged on the mounting seat and is used for driving the lower mold to rotate downwards to a preset posture and driving the lower mold to reset; the lower mold further comprises an ejection assembly, the ejection assembly comprises a plurality of ejection rods which are arranged in the ejection holes in a sliding mode, the ejection rods are matched with the ejection holes in a movable sealing mode, and one end of each ejection rod is flush with the inner wall of the corresponding ejection hole of the lower mold in the forming state; and the triggering assembly is arranged on the mounting seat. The plastic part discharging device is convenient to operate, workers do not need to take materials frequently, plastic parts can be discharged automatically and rapidly, and actual use is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic part forming processing, especially relates to a foamed material forming die. BACKGROUND

[0002] The statements herein only provide background technology related to the utility model and do not necessarily constitute the prior art.

[0003] The plastic part of high molecular foaming has been widely applied in many fields such as production and life, and the common high molecular materials are PU, PVC, EVA and the like, in production, the high molecular material needs to be injected into the foaming die and be heated and melted to form a gas-liquid saturated solution, a large number of small bubble nuclei are formed through nucleation, the bubble nuclei grow, and the plastic part is made. When some plastic parts with certain concave-convex shapes are made, the plastic part after foaming is generally left in the lower die plate, after the upper die plate rises, the staff needs to manually take out the plastic part, and the following problems exist in this treatment: 1. the staff needs to stretch the hand between the upper and lower dies to take out the plastic part, and the hand is easily injured due to misoperation of the die; 2. the staff needs to frequently take out the plastic part, the operation process is relatively cumbersome, and there is limitation in use. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at the above-mentioned deficiencies and provides a foamed material forming die, which realizes safe and rapid discharge of the plastic foaming.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a foamed material forming die, comprising,

[0006] The mounting seat, the upper die and the lower die, the bottom of the mounting seat has an open part, the upper die and the lower die are arranged on the mounting seat in a top-to-bottom mode, a plurality of ejection holes are formed in the lower die, and the upper die is arranged on the mounting seat in a liftable mode;

[0007] The driving device is arranged on the mounting seat and is used for driving the lower die to rotate downward to a predetermined posture and driving the lower die to reset;

[0008] The lower die further comprises an ejection assembly, the ejection assembly comprises a plurality of ejection rods which are slidably arranged in the ejection holes, the ejection rods are in dynamic sealing cooperation with the ejection holes, one end of the ejection rod is flush with the inner wall at the corresponding ejection hole of the lower die in a forming state, and the ejection rods move into the lower die and eject the plastic part when the ejection assembly is triggered;

[0009] The triggering assembly is arranged on the mounting seat and is used for starting when the lower die rotates downward to the predetermined posture, and the triggering assembly triggers the ejection assembly after starting.

[0010] Further, the lower mold comprises a mold cover, each of the ejection holes is arranged on the mold cover, the ejection assembly comprises a shell arranged on the outer wall of the mold cover, the ejection rod is a bolt assembly, the bolt assembly comprises a bolt, a sleeve arranged on the bolt and a tension spring arranged in the sleeve, the tension spring is connected with the bolt, each of the bolts is located in the corresponding ejection hole and flush with the inner wall of the corresponding ejection hole of the mold cover, the sleeve is located in the shell, and one end of each of the bolts away from the mold cover extends to the outside of the shell through the table body and the shell, and each of the bolts is provided with a push plate at the end located outside the shell, and the push plate is used for moving each of the bolts to the inside of the mold cover, and the tension spring is used for resetting each of the bolts to be flush with the inner wall of the corresponding ejection hole of the mold cover.

[0011] Further, the trigger assembly comprises a telescopic rod hingedly arranged on the inner wall of the mounting seat, the telescopic rod has two opposite telescopic ends, trigger rods are hingedly arranged on the two telescopic ends, the two trigger rods are distributed upward and downward, the inner wall of the mounting seat is provided with a number of limiting racks corresponding to the trigger rods, each of the trigger rods is slidingly inserted into the corresponding limiting rack, and the lower mold is pushed to move the bottom trigger rod when being rotated downward to the vertical state, the telescopic rod is rotated around the hinge between the telescopic rod and the mounting seat, and the top trigger rod pushes the push plate to move.

[0012] Further, the inner walls on the two sides of the mounting seat are provided with guide plates, the two guide plates have inclined surfaces, and the inclined surfaces of the two guide plates are directed toward the opening at the bottom of the mounting seat.

[0013] Further, the mounting seat is provided with a switch assembly, the switch assembly is used for locking the lower mold in the transverse state and unlocking the lower mold before the lower mold needs to be rotated downward.

[0014] The beneficial effects of the utility model are as follows:

[0015] When the plastic part is formed, the upper mold is controlled to ascend and drive the lower mold to rotate downward, the lower mold is in contact with the trigger assembly and drives the trigger assembly to start when the lower mold is rotated to the vertical downward state, the trigger assembly drives the ejection assembly to move, the ejection rod in the ejection assembly moves to the inside of the lower mold and ejects the plastic part existing in the lower mold, and the plastic part is discharged through the opening on the mounting seat after being ejected, so that the operation is convenient, the staff does not need to take the material frequently, and the actual use is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a sectional view of the utility model;

[0017] Figure 2 It is a connection diagram of the trigger assembly in the utility model;

[0018] Figure 3 It is a cross-sectional view of the lower mold of the utility model;

[0019] Figure 4 It is a sectional side view of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the mounting seat in the utility model.

[0021] In the picture:

[0022] 1. Mounting base; 2. Driving device; 3. Lower mold; 31. Mold cover; 32. Housing; 33. Ejector rod; 34. Push plate; 35. Push rod; 4. Linear module; 5. Upper mold; 6. Trigger assembly; 61. Hinge bracket; 62. Telescopic rod; 63. Trigger rod; 7. Limit frame; 8. Guide plate; 9. Switch assembly. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figures 1-5 The utility model discloses a foam material forming mold, including a mounting base 1, an upper mold 5 and a lower mold 3. The bottom of the mounting base 1 has an opening. The upper mold 5 and the lower mold 3 are arranged on the mounting base 1 up and down. A linear module 4 is installed on the mounting base 1. The upper mold 5 is installed on the moving end of the linear module 4. A plurality of ejection holes are opened on the lower mold 3. The upper mold 5 is arranged on the mounting base 1 in a liftable manner. When in use, the upper mold 5 can be controlled to move up and down by the linear module 4. When it rises, a space for loading materials will be left between the upper mold 5 and the lower mold 3. The staff can transport the raw materials to the lower mold 3 through an extruder or the like. The upper and lower molds can be molded after they contact and close with each other. The molding method belongs to the common knowledge in this field, so it will not be described in detail in this article.

[0025] In an embodiment, the driving device 2 is installed on the mounting base 1, which can be a motor device, and is used to drive the lower mold 3 to rotate downward to a predetermined position and to drive the lower mold 3 to return, so that the lower mold 3 rotates upward to a horizontal position or rotates downward to a vertical position. The lower mold 3 further comprises an ejection assembly, which comprises a plurality of ejection rods 33 slidably arranged in the ejection holes. The ejection rods 33 are in dynamic sealing cooperation with the ejection holes. One end of the ejection rod 33 is flush with the inner wall of the corresponding ejection hole of the lower mold 3 in the molding state. When the ejection assembly is triggered, the ejection rod 33 moves to the inside of the lower mold 3 and ejects the plastic part.

[0026] In a specific implementation, after the plastic part is formed, the upper mold 5 is controlled to rise and drive the lower mold 3 to rotate downward. When the lower mold 3 rotates to a vertical downward position, it contacts the trigger assembly 6 and triggers the trigger assembly 6. The trigger assembly 6 drives the ejection assembly to move, so that the ejection rod 33 in the ejection assembly moves to the inside of the lower mold 3 and ejects the plastic part existing in the lower mold 3. After the plastic part is ejected, it passes through the opening of the mounting base 1 to be discharged. This operation is convenient and does not require workers to frequently take out the plastic part, which facilitates actual use.

[0027] In actual use, a conveyor belt can be arranged at the bottom of the mounting base 1. The plastic part discharged from the opening of the mounting base 1 can be conveyed by the conveyor belt, thereby further improving the convenience of use.

[0028] In an embodiment, the lower mold 3 comprises a mold cover 31, and each ejection hole is arranged on the mold cover 31. The ejection assembly comprises a housing 32 arranged on the outer wall of the mold cover 31. The ejection rod 33 is a latch assembly, which comprises a latch, a sleeve arranged on the latch, and a tension spring arranged in the sleeve. The tension spring is connected to the latch. Each latch is located in the corresponding ejection hole and flush with the inner wall of the corresponding ejection hole of the mold cover 31. The sleeve is located in the housing 32. The end of each latch away from the mold cover 31 extends to the outside of the housing 32 through the base and the housing 32. The end of each latch located outside the housing 32 is provided with a push plate 34. The latch assembly is a common knowledge in the art, and thus will not be described in detail.

[0029] In a specific implementation, when the push plate 34 is pushed and moves toward the mold cover 31, each latch moves synchronously to the inside of the mold cover 31. In this process, the plastic part located in the mold cover 31 is ejected. When the pushing force on the push plate 34 is eliminated, the tension spring returns each latch to a state flush with the inner wall of the corresponding ejection hole of the mold cover 31 for next use.

[0030] In an embodiment, the push rod 35 is installed on the side of the mold cover 31 away from the connection with the mounting base 1, the trigger assembly 6 comprises a hinged bracket 61 installed on the inner wall of the mounting base 1, the hinged bracket 61 is hingedly provided with an extension rod 62, the extension rod 62 has two opposite extension ends, the two extension ends are hingedly provided with trigger rods 63, the two trigger rods 63 are distributed above and below, and the inner wall of the mounting base 1 is installed with a number of limiting racks 7 corresponding to the trigger rods 63, and each trigger rod 63 is slidingly inserted into the corresponding limiting rack 7.

[0031] In specific implementation, when the lower mold 3 is rotated downward to the vertical state, the push rod 35 contacts and pushes the trigger rod 63 at the bottom to move, in the process, the extension rod 62 rotates around the hinged bracket 61 on the mounting base 1, and the other end of the extension rod 62 away from the push rod 35 moves to the side close to the push plate 34, at this time, the trigger rod 63 at the top pushes the push plate 34 to move, so that the plastic part is pushed out of the mold cover 31 by the ejection rod 33.

[0032] In an embodiment, the mounting base 1 is provided with guide plates 8 on the inner walls of the two sides, and the two guide plates 8 have inclined surfaces, and the inclined surfaces are directed toward the opening at the bottom of the mounting base 1.

[0033] In this way, the plastic part discharged from the mold cover 31 can directly fall into the opening of the mounting base 1, instead of staying in the mounting base 1.

[0034] In an embodiment, the mounting base 1 is provided with a switch assembly 9, the switch assembly 9 is used for locking the lower mold 3 rotated to the horizontal state, and also used for unlocking the lower mold 3 before the lower mold 3 needs to be rotated downward.

[0035] In specific implementation, the switch assembly 9 can be an electric telescopic rod, the side of the lower mold 3 close to the switch assembly 9 is provided with a positioning groove (not shown in the figure), and the telescopic end of the switch assembly 9 is inserted into the positioning groove when extended, so that the lower mold 3 is locked and cannot be rotated; on the contrary, when the telescopic end of the switch assembly 9 is retracted, the lower mold 3 is in an unlocked state, and then can be rotated and adjusted.

[0036] It should be noted that if the embodiments of the utility model have directionality indications (such as up, down, left, right, front, back, etc.), the directionality indications are only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indications also change accordingly.

[0037] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0038] In addition, "a plurality of" means two or more.

[0039] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A foamed material forming mold characterized by: The utility model relates to a plastic injection molding machine, including, The bottom of the mounting seat (1) has an opening, the upper die (5) and the lower die (3) are arranged on the mounting seat (1) in a top-down manner, the lower die (3) is provided with a plurality of ejection holes, and the upper die (5) is arranged on the mounting seat (1) in a liftable manner; The driving device (2) is arranged on the mounting seat (1) and is used for driving the lower die (3) to rotate downward to a predetermined posture and resetting the lower die (3); The lower die (3) further comprises an ejection assembly, the ejection assembly comprises a plurality of slidable ejection rods (33) arranged in the ejection holes, the ejection rods (33) are in dynamic sealing cooperation with the ejection holes, one end of the ejection rod (33) is flush with the inner wall of the corresponding ejection hole of the lower die (3) in a molded state, and the ejection assembly moves into the lower die (3) and ejects the plastic part when triggered. The triggering assembly (6) is arranged on the mounting seat (1), the triggering assembly (6) is used for starting when the lower die (3) rotates downward to a predetermined posture, and the triggering assembly (6) triggers the ejection assembly after starting.

2. The foamed material forming mold according to claim 1, characterized by: The lower die (3) comprises a die cover (31), each ejection hole is arranged on the die cover (31), the ejection assembly comprises a housing (32) arranged on the outer wall of the die cover (31), the ejection rod (33) is a bolt assembly, the bolt assembly comprises a bolt, a sleeve arranged on the bolt and a tension spring arranged in the sleeve, the tension spring is connected with the bolt, each bolt is arranged in the corresponding ejection hole and flush with the inner wall of the corresponding ejection hole of the die cover (31), the sleeve is arranged in the housing (32), one end of each bolt away from the die cover (31) extends to the outside of the housing (32) through the housing (32), and each bolt is provided with a push plate (34) at the end away from the die cover (31), and the push plate (34) is pushed to move each bolt into the die cover (31), and the tension spring is used for resetting each bolt to be flush with the inner wall of the corresponding ejection hole of the die cover (31).

3. The foam molding die according to claim 2, wherein: The triggering assembly (6) comprises a telescopic rod (62) hingedly arranged on the inner wall of the mounting seat (1), the telescopic rod (62) has two opposite telescopic ends, trigger rods (63) are hingedly arranged on the two telescopic ends, the two trigger rods (63) are arranged in a top-down manner, the inner wall of the mounting seat (1) is provided with a number of limiting racks (7) corresponding to the trigger rods (63), each trigger rod (63) is slidably arranged in the corresponding limiting rack (7), the lower die (3) rotates downward to the vertical state, the bottom trigger rod (63) is pushed to move, the telescopic rod (62) rotates around the hinge between the telescopic rod (62) and the mounting seat (1), and the top trigger rod (63) pushes the push plate (34) to move.

4. The foamed material forming mold of claim 1, wherein: The inner walls of the two sides of the mounting seat (1) are provided with guide plates (8), the two guide plates (8) have inclined surfaces, and the inclined surfaces of the two guide plates (8) are directed toward the opening at the bottom of the mounting seat (1).

5. The foamed material forming mold of claim 1, wherein: The mounting base (1) is provided with a switch assembly (9), which locks the lower mold (3) rotated to the transverse state, and is also used for unlocking the lower mold (3) before the lower mold (3) needs to be rotated downward.

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