Box mold with demolding ejection mechanism

Abstract

The utility model provides a box mould with a demoulding ejection mechanism, which comprises an upper mould, a lower mould and a forming cavity, the forming cavity is arranged at the top of the lower mould, the upper mould is arranged at the top of the lower mould, and an ejection plate is arranged in the forming cavity. The utility model relates to the technical field of box body molds. According to the box body mold with the demolding ejection mechanism, through the arrangement of the ejection mechanism, when demolding is needed after injection molding of the box body mold is completed, the worm is driven to rotate around the first bearing by starting the motor; when the transmission gear rotates, a toothed plate can be driven to move upwards along the tracks of a sliding block and a sliding groove, then structures such as a supporting rod, a buffer block and an ejection plate are driven to move upwards, the ejection plate moves upwards to drive a workpiece to move upwards, and therefore the workpiece can be driven to move upwards; and the workpiece leaves the interior of the injection molding cavity, and demolding is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to box mould technical field, concretely is a box mould with demoulding ejection mechanism. BACKGROUND

[0002] The box mould is a tool for forming processing, and is mainly used for manufacturing products with various box structures. It belongs to a kind of mechanical mould, with complex structure, high precision requirement and other characteristics. The box mould is widely used in the fields of motorcycle manufacturing, river revetment, dam revetment and the like.

[0003] The demoulding ejection mechanism of the box extrusion die provided in the publication "CN220313967U" comprises a workbench, a lower die is fixedly connected inside the workbench, a frame body is fixedly connected to the top of the workbench, a hydraulic rod is fixedly connected to the top of the frame body, an extrusion block is fixedly connected to the bottom of the hydraulic rod, a demoulding ejection assembly is fixedly connected inside the workbench, and the demoulding ejection assembly comprises a motor fixedly connected inside the workbench. When the box is extruded and formed by the extrusion block and the lower die, the motor can be started to drive the threaded rod to rotate when demoulding is needed, the threaded rod drives the two threaded blocks to move relative to each other when rotating, the threaded blocks drive the movable rods to rotate when moving, the threaded rod can drive the sliding plate to move upward when rotating, the sliding plate drives the ejection rod and the ejection block to move upward when moving upward, and the ejection block can push the box inside the lower die upward when moving upward, so that the effect of convenient demoulding can be achieved.

[0004] However, the above-mentioned device still has the following problems in the implementation process:

[0005] After the box mould injection is completed, the workpiece needs to be taken out of the mould, and the traditional demoulding method is manual demoulding. The manual demoulding needs a long time and has poor demoulding efficiency, and the workpiece is also easy to be damaged, thereby reducing the practicability of the box mould. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a box mould with demoulding ejection mechanism to solve the problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A box mould with demoulding ejection mechanism, comprising an upper die, a lower die and a forming cavity, the forming cavity is arranged at the top of the lower die, the upper die is arranged at the top of the lower die, the inside of the forming cavity is provided with an ejection plate, the inside of the lower die is provided with a transmission cavity, and the inside of the transmission cavity is provided with an ejection mechanism.

[0009] The ejection mechanism comprises a motor fixedly installed on one side of the lower mold, an output end of the motor penetrates to the inside of a transmission cavity, and a worm is fixedly connected, the top of the worm is meshingly connected with a worm wheel, both sides of the worm wheel are fixedly connected with transmission rods, one end of the transmission rod is fixedly connected with a transmission gear, one side of the transmission gear is meshingly connected with a toothed plate, and a buffer mechanism is arranged between the toothed plate and the ejection plate.

[0010] Preferably, the buffer mechanism comprises a support rod fixedly connected to the top of the toothed plate, a buffer block is sleeved on the surface of the support rod, the top of the buffer block penetrates to the inside of the forming cavity, and the bottom of the ejection plate is fixedly connected, a rebound groove is formed in the bottom of the buffer block and matched with the support rod, a buffer spring is fixedly connected to the top of the support rod, and the top of the buffer spring is fixedly connected with the inner wall of the rebound groove.

[0011] Preferably, the inner wall of the rebound groove is fixedly connected with a guide rod, and the top of the support rod is provided with a guide hole matched with the guide rod.

[0012] Preferably, one end of the worm is provided with a first bearing, and the first bearing is rotatably connected with the inner wall of the transmission cavity.

[0013] Preferably, one side of the transmission gear is provided with a second bearing, and the second bearing is rotatably connected with the inner wall of the transmission cavity.

[0014] Preferably, one side of the toothed plate is fixedly connected with a sliding block, and the inner wall of the transmission cavity is provided with a sliding groove matched with the sliding block.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The utility model discloses a ejection mechanism is provided, can when the box mold injection is completed and needs to be demoulded, starts the motor through, drives the worm to rotate around the first bearing, because the worm is engaged with the worm wheel, thus will drive the worm wheel, transmission rod and transmission gear rotate around the second bearing, when transmission gear rotates, will drive toothed plate move up along the track of sliding block and sliding groove, then drive support rod, buffer block and ejection plate and so on structure move up, and ejection plate moves up and drives workpiece to move up, makes workpiece leave injection cavity inside, reaches the effect that demoulding is convenient.

[0017] 2、The utility model discloses a buffer mechanism, can when ejection plate moves up and ejects workpiece, and make the influence of reaction force, will buffer block move down along the track of guide rod and guide hole, and compresses buffer spring simultaneously, through the reaction force of buffer spring, plays the role of buffering, thereby avoids the condition that workpiece is damaged to occur. ACCURACY OF DRAWINGS

[0018] Figure 1 It is the main body structure schematic view of the utility model;

[0019] Figure 2 It is the main body mechanism cutaway of the utility model three-dimensional view;

[0020] Figure 3 It is the three-dimensional view of the utility model ejection plate;

[0021] Figure 4 It is the three-dimensional view of the utility model ejection mechanism;

[0022] Figure 5 It is the cutaway of the utility model buffer block.

[0023] In the drawing: 1, upper die; 2, lower die; 3, forming cavity; 4, ejection plate; 5, transmission cavity; 6, motor; 7, worm; 8, worm gear; 9, transmission rod; 10, transmission gear; 11, toothed plate; 12, support rod; 13, buffer block; 14, rebound groove; 15, buffer spring; 16, guide rod; 17, guide hole; 18, first bearing; 19, second bearing; 20, sliding block; 21, sliding groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0026] Embodiment one:

[0027] A box mold with demolding ejection mechanism, including upper die 1, lower die 2 and forming cavity 3, forming cavity 3 is set up in the top of lower die 2, upper die 1 is located in the top of lower die 2, the inside of forming cavity 3 is provided with ejection plate 4, the inside of lower die 2 is provided with transmission cavity 5, the inside of transmission cavity 5 is provided with ejection mechanism;

[0028] The ejection mechanism includes motor 6 fixedly installed in one side of lower die 2, the output end of motor 6 is penetrated to the inside of transmission cavity 5, and is fixedly connected with worm 7, the top of worm 7 is engagedly connected with worm gear 8, both sides of worm gear 8 are fixedly connected with transmission rod 9, one end of transmission rod 9 is fixedly connected with transmission gear 10, one side of transmission gear 10 is engagedly connected with toothed plate 11, and buffer mechanism is arranged between toothed plate 11 and ejection plate 4.

[0029] In this embodiment, considering that the workpiece needs to be taken out of the mold after the box mold injection is completed, the traditional demolding method is manual demolding, which takes a long time and has poor demolding efficiency, and the workpiece is easy to be damaged, thereby reducing the practicability of the box mold. Therefore, by setting the ejection mechanism, when demolding is needed after the box mold injection is completed, the motor 6 is started to drive the worm 7 to rotate around the first bearing 18. Since the worm 7 is engaged with the worm wheel 8, the worm wheel 8, the transmission rod 9 and the transmission gear 10 will rotate around the second bearing 19. While the transmission gear 10 rotates, the toothed plate 11 will move upwards along the track of the sliding block 20 and the sliding groove 21, thereby driving the support rod 12, the buffer block 13 and the ejection plate 4 and other structures to move upwards. The upward movement of the ejection plate 4 drives the workpiece to move upwards, so that the workpiece leaves the inside of the injection cavity, achieving the effect of facilitating demolding.

[0030] The problem of taking the workpiece out of the mold after the box mold injection is completed is solved.

[0031] One end of the worm 7 is provided with the first bearing 18, and the first bearing 18 is rotatably connected with the inner wall of the transmission cavity 5.

[0032] In this embodiment, the first bearing 18 is provided to support the worm 7 and limit the rotation of the worm 7 around the first bearing 18, thereby improving the smoothness of the rotation.

[0033] One side of the transmission gear 10 is provided with the second bearing 19, and the second bearing 19 is rotatably connected with the inner wall of the transmission cavity 5.

[0034] In this embodiment, the second bearing 19 is provided to support the worm wheel 8, the transmission rod 9 and the transmission gear 10, and to ensure that the worm wheel 8 and the worm 7 are always in meshing rotation state for easy transmission.

[0035] One side of the toothed plate 11 is fixedly connected with the sliding block 20, and the inner wall of the transmission cavity 5 is provided with the sliding groove 21 matched with the sliding block 20.

[0036] In this embodiment, the sliding block 20 and the sliding groove 21 are provided to limit the movement of the toothed plate 11 along the track of the sliding block 20 and the sliding groove 21 when the transmission gear 10 drives the toothed plate 11, thereby improving the stability during transmission.

[0037] Embodiment two:

[0038] On the basis of embodiment one, the ejection mechanism in this embodiment can facilitate the demolding of the workpiece, but considering that there is no buffer in the ejection process, the workpiece is prone to damage, and the buffer mechanism in the application comprises a supporting rod 12 fixedly connected to the top of the toothed plate 11, the surface of the supporting rod 12 is sleeved with a buffer block 13, the top of the buffer block 13 penetrates into the inside of the forming cavity 3 and is fixedly connected with the bottom of the ejection plate 4, the bottom of the buffer block 13 is provided with a rebound groove 14 used in cooperation with the supporting rod 12, and the top of the supporting rod 12 is fixedly connected with a buffer spring 15, and the top of the buffer spring 15 is fixedly connected with the inner wall of the rebound groove 14.

[0039] In this embodiment, considering that there is no buffer in the ejection process, the workpiece is prone to damage, therefore, by arranging the buffer mechanism, when the ejection plate 4 moves upward to eject the workpiece, the reaction force will affect the buffer block 13 to move downward along the track of the guide rod 16 and the guide hole 17, and at the same time, the buffer spring 15 is compressed, and through the reaction force of the buffer spring 15, the buffering effect is achieved, so as to avoid the damage of the workpiece.

[0040] The problem that the workpiece is prone to damage due to the lack of buffer in the ejection process is solved.

[0041] The inner wall of the rebound groove 14 is fixedly connected with a guide rod 16, and the top of the supporting rod 12 is provided with a guide hole 17 used in cooperation with the guide rod 16.

[0042] In this embodiment, by arranging the guide rod 16 and the guide hole 17, when the buffer block 13 is affected by pressure to move downward, the movement track of the buffer block 13 and other structures is limited, and the stability in the movement process is improved.

[0043] Working principle: when demolding is needed after the box mold is injection molded, the motor 6 is started to drive the worm 7 to rotate around the first bearing 18, since the worm 7 is engaged with the worm wheel 8, the worm wheel 8, the transmission rod 9 and the transmission gear 10 are driven to rotate around the second bearing 19, at the same time, the transmission gear 10 rotates to drive the toothed plate 11 to move upward along the track of the sliding block 20 and the sliding groove 21, thereby driving the supporting rod 12, the buffer block 13 and the ejection plate 4 and other structures to move upward, the upward movement of the ejection plate 4 drives the workpiece to move upward, so that the workpiece leaves the inside of the injection cavity, and the demolding is facilitated.

[0044] At the same time, considering that there is no buffer in the ejection process, the workpiece is prone to damage, when the ejection plate 4 moves upward to eject the workpiece, the reaction force will affect the buffer block 13 to move downward along the track of the guide rod 16 and the guide hole 17, and at the same time, the buffer spring 15 is compressed, and through the reaction force of the buffer spring 15, the buffering effect is achieved, so as to avoid the damage of the workpiece.

[0045] It should be noted that the motor 6 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art, and the specific composition and principle of power supply of the motor 6 are clear to those skilled in the art, and therefore will not be described in detail.

[0046] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A box mold with a demolding ejection mechanism, comprising an upper mold (1), a lower mold (2) and a molding cavity (3), the molding cavity (3) is opened at the top of the lower mold (2), and the upper mold (1) is located at the top of the lower mold (2), characterized in that: The inside of the forming cavity (3) is provided with an ejection plate (4), the inside of the lower mold (2) is provided with a transmission cavity (5), and the inside of the transmission cavity (5) is provided with an ejection mechanism; The ejection mechanism comprises a motor (6) fixedly installed on one side of the lower mold (2), the output end of the motor (6) penetrates into the inside of the transmission cavity (5) and is fixedly connected with a worm (7), the top of the worm (7) is engagedly connected with a worm wheel (8), both sides of the worm wheel (8) are fixedly connected with transmission rods (9), one end of each transmission rod (9) is fixedly connected with a transmission gear (10), one side of the transmission gear (10) is engagedly connected with a toothed plate (11), and a buffer mechanism is arranged between the toothed plate (11) and the ejection plate (4).

2. A box mold having a demolding ejection mechanism according to claim 1, characterized in that: The buffer mechanism comprises a support rod (12) fixedly connected to the top of the toothed plate (11), the surface of the support rod (12) is sleeved with a buffer block (13), the top of the buffer block (13) penetrates into the inside of the forming cavity (3) and is fixedly connected with the bottom of the ejection plate (4), the bottom of the buffer block (13) is provided with a rebound groove (14) matched with the support rod (12), the top of the support rod (12) is fixedly connected with a buffer spring (15), and the top of the buffer spring (15) is fixedly connected with the inner wall of the rebound groove (14).

3. A box mold having a demolding ejection mechanism according to claim 2, characterized in that: The inner wall of the rebound groove (14) is fixedly connected with a guide rod (16), and the top of the support rod (12) is provided with a guide hole (17) matched with the guide rod (16).

4. A box mold having a demolding ejection mechanism according to claim 1, characterized in that: One end of the worm (7) is provided with a first bearing (18), and the first bearing (18) is rotatably connected with the inner wall of the transmission cavity (5).

5. A box mold having a demolding ejection mechanism according to claim 1, characterized in that: One side of the transmission gear (10) is provided with a second bearing (19), and the second bearing (19) is rotatably connected with the inner wall of the transmission cavity (5).

6. A box mold having a demolding ejection mechanism according to claim 1, characterized in that: One side of the toothed plate (11) is fixedly connected with a sliding block (20), and the inner wall of the transmission cavity (5) is provided with a sliding groove (21) matched with the sliding block (20). One side of the toothed plate (11) is fixedly connected with a sliding block (20), and the inner wall of the transmission cavity (5) is provided with a sliding groove (21) matched with the sliding block (20).

Images