Air valve auxiliary demolding mechanism for ultra-deep plastic storage barrel

Abstract

The utility model provides an air valve auxiliary demolding mechanism for an ultra-deep plastic storage barrel, and belongs to the technical field of molds. The mold comprises an upper mold plate, a middle mold plate and a lower mold plate, a forming cavity is formed among the upper mold plate, the middle mold plate and the lower mold plate, a combined type ejection structure inserted into the middle mold plate is arranged on the lower mold plate, an upper cover corresponding to the combined type ejection structure is arranged at the top of the middle mold plate, and the upper mold plate is provided with a lower cover. And a top plate is arranged at the top of the lower template. A plastic storage bucket main body can be formed through injection molding in a forming cavity among the upper mold plate, the middle mold plate and the lower mold plate, and a handrail groove penetrating through the bucket wall can be formed in the bucket opening side of the plastic storage bucket main body during injection molding through a hook type core pulling mechanism arranged between the middle mold plate and the top plate. The hook type core pulling mechanism can realize core pulling in the horizontal direction firstly and then move upwards along with the middle mold plate, so that ejection and demolding of a storage bucket product in the later period are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mould technical field relates to a kind of superdeep plastic storage barrel air valve auxiliary demolding mechanism. BACKGROUND

[0002] Superdeep plastic storage barrel is generally formed by mould injection molding, and a handrail groove penetrating the barrel wall is formed on the outer edge of the barrel mouth during the production process of the plastic storage barrel. However, the mould in the prior art cannot directly form the handrail groove during production, and secondary processing is required later, resulting in low production efficiency.

[0003] For example, a medical waste storage barrel shell forming mould [application number: 202323133168.3] is disclosed in Chinese patent, which includes an upper die plate assembly, a lower die plate assembly, a cavity for injection molding a medical waste storage barrel shell between the upper die plate assembly and the lower die plate assembly, a hot runner assembly cooperating with the cavity, the hot runner assembly includes a housing, the upper die plate assembly includes a hot runner fixing plate, a positioning part and a fixing part are provided between the housing and the hot runner fixing plate, and when the housing of the hot runner assembly is installed on the hot runner fixing plate, the housing is positioned on the hot runner fixing plate through the positioning part and / or the fixing part. SUMMARY

[0004] The utility model aims at the above problem, and provides a kind of superdeep plastic storage barrel air valve auxiliary demolding mechanism.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of superdeep plastic storage barrel air valve auxiliary demolding mechanism, including upper die plate, intermediate die plate and lower die plate, the upper die plate, intermediate die plate and lower die plate between being provided with forming cavity, the lower die plate be provided with the combined ejection structure inserted into intermediate die plate, the intermediate die plate top be provided with the upper cover corresponding with combined ejection structure, the lower die plate top be provided with top plate, the intermediate die plate bottom and top plate are in abutment, two hook type core-pulling mechanisms are further provided with symmetry between the intermediate die plate and top plate and the forming cavity side portion is connected.

[0007] In the above-mentioned superdeep plastic storage barrel air valve auxiliary demolding mechanism, the hook type core-pulling mechanism includes hook clamping groove inwardly provided on the top plate, the top of the hook clamping groove is fixedly connected with clamping plate, the bottom of the intermediate die plate is connected with side core block inserted into the forming cavity through elastic member, the side core block is fixedly connected with hook inserted into the hook clamping groove and capable of being clamped and matched with the clamping plate, and the bottom of the intermediate die plate is further provided with driving block connected with the side core block through push-pull connection structure.

[0008] In the super deep plastic storage barrel air valve auxiliary demolding mechanism, the push-pull connecting structure comprises a push-pull sliding groove arranged on the driving block in a concave manner and a push-pull sliding block arranged on the outer sidewall of the side core block in a convex manner, the push-pull sliding groove and the push-pull sliding block are arranged in an inclined manner, and the push-pull sliding block is inserted into the push-pull sliding groove and is in sliding connection with the push-pull sliding groove.

[0009] In the super deep plastic storage barrel air valve auxiliary demolding mechanism, the push-pull sliding groove and the push-pull sliding block are T-shaped in cross section.

[0010] In the super deep plastic storage barrel air valve auxiliary demolding mechanism, two spring mounting grooves are arranged on the top of the side core block in a concave manner, the elastic member comprises two springs fixed in the spring mounting grooves, and the top ends of the springs are fixedly connected with the bottom of the middle mold plate.

[0011] In the super deep plastic storage barrel air valve auxiliary demolding mechanism, the hook bottom and the clamping hook part of the clamping plate are in a horizontal state.

[0012] In the super deep plastic storage barrel air valve auxiliary demolding mechanism, the combined ejection structure comprises an upper insert block, a middle insert block and a lower insert block arranged in sequence from top to bottom, the lower insert block is integrally formed with the lower mold plate, and the upper insert block and the middle insert block are detachably fixed on the lower insert block through a plurality of screws.

[0013] In the super deep plastic storage barrel air valve auxiliary demolding mechanism, vertical air auxiliary flow channels are arranged in the upper insert block, the middle insert block and the lower insert block in correspondence, the top end of the air auxiliary flow channel is provided with a one-way valve, and the lower mold plate is further provided with an air inlet flow channel connected with the air auxiliary flow channel.

[0014] In the super deep plastic storage barrel air valve auxiliary demolding mechanism, an upper cover mounting groove is arranged on the top of the middle mold plate in a concave manner, and a plurality of cooling flow channel structures are arranged in the circumferential direction in the upper cover mounting groove.

[0015] In the super deep plastic storage barrel air valve auxiliary demolding mechanism, the cooling flow channel structure comprises a connecting flow channel which is arc-shaped in cross section, and a plurality of vertical cooling flow channels are arranged vertically at the bottom of the connecting flow channel.

[0016] Compared with the prior art, the super deep plastic storage barrel air valve auxiliary demolding mechanism has the following advantages:

[0017] 1. The molding cavity between the upper mold plate, the middle mold plate and the lower mold plate can be used for injection molding of the plastic storage barrel main body, the hook type core pulling mechanism arranged between the middle mold plate and the top plate can form a handrail groove penetrating the barrel wall at the barrel opening side of the plastic storage barrel main body during injection molding, the hook type core pulling mechanism can realize horizontal core pulling first, and then moves upward together with the middle mold plate during mold opening, so that the ejection and demolding of the storage barrel product in the later stage are facilitated.

[0018] 2、Product injection molding, side core block inner end horizontal insertion to the forming cavity, the hook on the side core block extends into the hook slot and is clamped with the clamping plate, when the mold is opened, the upper mold plate moves upward to drive the driving block upward, the driving block moves upward to drive the side core block to move away from the forming cavity through the push-pull connection structure, although the middle mold plate bottom is connected with the side core block through the elastic element, and due to the limiting effect of the hook and the clamping plate, the side core block can only move horizontally away from the forming cavity to realize the translation of the side core block. When the hook and the clamping plate are separated, the side core block can be pulled upward under the action of the elastic element, so as to be pulled out of the product by the top plate in the later period.

[0019] Other advantages, objectives and features of the present application will be partly illustrated in the following description, and will be partly understood by those skilled in the art through research and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a sectional view of the present application;

[0021] Figure 2 is a structural schematic view of the top of the middle mold plate;

[0022] Figure 3 is a structural schematic view of the lower mold plate;

[0023] Figure 4 is Figure 1 is an enlarged schematic view of the middle A;

[0024] Figure 5 is a structural schematic view of the hook type core pulling mechanism.

[0025] In the figure, the upper mold plate 1, the middle mold plate 2, the lower mold plate 3, the forming cavity 4, the combined ejection structure 5, the upper cover 6, the top plate 7, the hook type core pulling mechanism 8, the hook slot 9, the clamping plate 10, the elastic element 11, the side core block 12, the hook 13, the driving block 14, the push-pull sliding groove 15, the push-pull sliding block 16, the spring 17, the clamping hook part 18, the upper insert block 19, the middle insert block 20, the lower insert block 21, the gas auxiliary flow channel 22, the one-way valve 23, the air inlet flow channel 24, the upper cover installation groove 25, the connecting flow channel 26, the vertical cooling flow channel 27. DETAILED DESCRIPTION

[0026] As Figures 1-5As shown, an ultra-deep plastic storage barrel gas valve auxiliary demolding mechanism, including the upper die plate 1, the middle die plate 2 and the lower die plate 3, the upper die plate 1, the middle die plate 2 and the lower die plate 3 between the forming cavity 4 is provided, the lower die plate 3 on the insert into the middle die plate 2 combined ejection structure 5, the middle die plate 2 top is provided with the corresponding upper cover 6 of combined ejection structure 5, the lower die plate 3 top is provided with the top plate 7, the middle die plate 2 bottom and top plate, the middle die plate 2 and the top plate 7 between also symmetrically provided with two with the forming cavity 4 side hook type core pulling mechanism 8.

[0027] In the utility model, the forming cavity between the upper die plate, the middle die plate and the lower die plate can be injection molded to form a plastic storage barrel body, the hook type core pulling mechanism arranged between the middle die plate and the top plate can form a handrail groove penetrating the barrel wall on the barrel opening side of the plastic storage barrel body during injection molding, and the hook type core pulling mechanism can realize horizontal core pulling first and then move upward with the middle die plate during mold opening, so as to facilitate the ejection of the storage barrel product in the later stage.

[0028] Specifically, the hook type core pulling mechanism 8 includes a hook clamping groove 9 inwardly arranged on the top plate 7, the hook clamping groove 9 top is fixedly connected with a clamping plate 10, the middle die plate 2 bottom is connected with a side core block 12 horizontally inserted into the forming cavity 4 through an elastic element 11, the side core block 12 is fixedly connected with a hook 13 inserted into the hook clamping groove 9 and capable of being clamped with the clamping plate 10, and the middle die plate 2 bottom is further provided with a driving block 14 connected with the side core block 12 through a push-pull connection structure. During product injection molding, the inner end of the side core block is horizontally inserted into the forming cavity, the hook on the side core block extends into the hook clamping groove and is clamped with the clamping plate, and during mold opening, the upper die plate moves upward to drive the driving block to move upward, the driving block moves upward to drive the side core block to move away from the forming cavity through the push-pull connection structure, although the middle die plate 2 bottom is connected with the side core block 12 through the elastic element 11, but due to the limiting action of the hook 13 and the clamping plate, the side core block can only move horizontally away from the forming cavity to realize horizontal translation of the side core block, and after the hook and the clamping plate are separated, the side core block can be pulled upward under the action of the elastic element, so as to facilitate the ejection of the product through the top plate in the later stage.

[0029] Specifically, the push-pull connection structure includes a push-pull sliding groove 15 inwardly recessed arranged on the driving block 14 and a push-pull sliding block 16 protrusively arranged on the outer side wall of the side core block 12, the push-pull sliding groove 15 and the push-pull sliding block 16 are inclinedly arranged, the push-pull sliding block 16 is inserted into the push-pull sliding groove 15 and is slidably connected with the push-pull sliding groove 15, and the cross section of the push-pull sliding groove 15 and the push-pull sliding block 16 is T-shaped. The push-pull sliding groove with T-shaped cross section cooperates with the push-pull sliding block to drive the side core block to move horizontally away from the forming cavity when the driving block moves vertically upward.

[0030] Specifically, the top of the side core block 12 is inwardly recessed to provide two spring mounting grooves, the elastic member 11 includes two springs 17 fixed in the spring mounting grooves, and the top end of the spring 17 is fixedly connected with the bottom of the middle template 2.

[0031] Specifically, the bottom of the hook 13 is in a horizontal state at the clamping hook part 18 clamped with the clamping plate 10.

[0032] Specifically, the combined ejection structure 5 includes an upper insert block 19, a middle insert block 20 and a lower insert block 21 arranged in sequence from top to bottom, the lower insert block 21 is integrally formed with the lower template 3, and the upper insert block 19 and the middle insert block 20 are detachably fixed on the lower insert block 21 by a plurality of screws.

[0033] Preferably, the upper insert block 19, the middle insert block 20 and the lower insert block 21 are correspondingly provided with vertically arranged gas auxiliary flow channels 22, the top end of the gas auxiliary flow channel 22 is provided with a one-way valve 23, and the lower template 3 is further provided with an air inlet flow channel 24 connected with the gas auxiliary flow channel 22.

[0034] Specifically, the top of the middle template 2 is inwardly recessed to provide an upper cover mounting groove 25, the upper cover mounting groove 25 is circumferentially provided with a plurality of cooling flow channel structures, the cooling flow channel structure includes an arc-shaped connecting flow channel 26, and the bottom of the connecting flow channel 26 is provided with a plurality of vertically arranged vertical cooling flow channels 27.

[0035] The working principle of the utility model is: the molding cavity between the upper template, the middle template and the lower template can be used for injection molding of a plastic storage barrel main body, the hook type core pulling mechanism arranged between the middle template and the top plate can form a handrail groove penetrating through the barrel wall at the barrel opening side of the plastic storage barrel main body during injection molding, and the hook type core pulling mechanism can realize horizontal core pulling first and then move upward along with the middle template during mold opening, so as to facilitate the ejection and demolding of the storage barrel product in the later period.

[0036] When the product is injection molded, the side core block is horizontally inserted into the forming cavity, the hook on the side core block is extended into the hook slot and is clamped with the clamping plate, when the mold is opened, the upper mold plate moves upward to drive the driving block to move upward, the driving block moves upward to drive the side core block to move horizontally away from the forming cavity through the push-pull connection structure, although the middle mold plate 2 is connected with the side core block 12 through the elastic element 11, due to the limiting effect of the hook 13 and the clamping plate, the side core block can only move horizontally away from the forming cavity to realize the translation of the side core block, when the hook and the clamping plate are separated, the side core block can be pulled upward under the action of the elastic element, so that the product can be pushed out by the top plate in the later stage, the T-shaped push-pull sliding groove cooperates with the push-pull sliding block to drive the side core block to move horizontally away from the forming cavity when the driving block moves vertically upward, the spring connects the middle mold plate and the side core block to enable the horizontal displacement between the side core block and the middle mold plate, and the side core block and the middle mold plate can be reset after relative displacement and keep connected;

[0037] The insert block structure composed of the upper insert block, the middle insert block and the lower insert block can reduce the maintenance or replacement cost when damaged, after the product is injection molded, high-pressure gas can be introduced into the forming cavity through the gas inlet channel and the gas auxiliary channel to separate the product and the lower mold plate, so that the product can be pushed out, and the cooling liquid can be introduced into the vertical cooling channel through the connecting channel to cool the injection liquid in the forming cavity after the injection liquid is injected into the forming cavity.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0039] Although the upper mold plate 1, the middle mold plate 2, the lower mold plate 3, the forming cavity 4, the combined ejection structure 5, the upper cover 6, the top plate 7, the hook core pulling mechanism 8, the hook slot 9, the clamping plate 10, the elastic element 11, the side core block 12, the hook 13, the driving block 14, the push-pull sliding groove 15, the push-pull sliding block 16, the spring 17, the clamping hook part 18, the upper insert block 19, the middle insert block 20, the lower insert block 21, the gas auxiliary channel 22, the one-way valve 23, the gas inlet channel 24, the upper cover mounting groove 25, the connecting channel 26, the vertical cooling channel 27 and the like are used more frequently herein, the use of these terms is only to facilitate the description and explanation of the essence of the present application; any additional limitation is contrary to the spirit of the present application.

Claims

1. An ultra-deep plastic storage barrel gas valve auxiliary demolding mechanism, comprising an upper mold plate (1), a middle mold plate (2) and a lower mold plate (3), a forming cavity (4) is arranged between the upper mold plate (1), the middle mold plate (2) and the lower mold plate (3), characterized in that, The lower mold plate (3) is provided with a combined ejection structure (5) inserted into the middle mold plate (2), the top of the middle mold plate (2) is provided with an upper cover (6) corresponding to the combined ejection structure (5), the top of the lower mold plate (3) is provided with a top plate (7), the bottom of the middle mold plate (2) abuts against the top plate (7), and two hook type core pulling mechanisms (8) connected with the side of the forming cavity (4) are symmetrically arranged between the middle mold plate (2) and the top plate (7).

2. The ultra-deep plastic tote gas valve assisted demolding mechanism of claim 1, wherein, The hook type core pulling mechanism (8) comprises a hook clamping groove (9) arranged inwardly on the top plate (7), a clamping plate (10) fixedly connected to the top of the hook clamping groove (9), a side core block (12) horizontally inserted into the forming cavity (4) and connected to the bottom of the middle mold plate (2) through an elastic element (11), a hook (13) inserted into the hook clamping groove (9) and capable of being clamped and matched with the clamping plate (10) is fixedly connected to the side core block (12), and the bottom of the middle mold plate (2) is further provided with a driving block (14) connected with the side core block (12) through a push-pull connection structure.

3. The ultra-deep plastic tote gas valve assisted demolding mechanism of claim 2, wherein, The push-pull connection structure comprises a push-pull sliding groove (15) recessed inwardly on the driving block (14) and a push-pull sliding block (16) protruding outwardly on the side wall of the side core block (12), the push-pull sliding groove (15) and the push-pull sliding block (16) are arranged obliquely, and the push-pull sliding block (16) is inserted into the push-pull sliding groove (15) and is in sliding connection with the push-pull sliding groove (15).

4. The ultra-deep plastic tote gas valve assisted demolding mechanism of claim 3, wherein, The cross section of the push-pull sliding groove (15) and the push-pull sliding block (16) is T-shaped.

5. The ultra-deep plastic tote gas valve assisted demolding mechanism of claim 2, wherein, The top of the side core block (12) is recessed inwardly and provided with two spring mounting grooves, the elastic element (11) comprises two springs (17) fixedly arranged in the spring mounting grooves, and the top end of the spring (17) is fixedly connected with the bottom of the middle mold plate (2).

6. The ultra-deep plastic tote gas valve assisted demolding mechanism of claim 2, wherein, The clamping hook part (18) of the hook (13) clamped with the clamping plate (10) is in a horizontal state.

7. The ultra-deep plastic tote gas valve assisted ejection mechanism of claim 1, wherein, The combined ejection structure (5) comprises an upper inlay block (19), a middle inlay block (20) and a lower inlay block (21) arranged in sequence from top to bottom, the lower inlay block (21) is integrally formed with the lower mold plate (3), and the upper inlay block (19) and the middle inlay block (20) are detachably fixed on the lower inlay block (21) through a plurality of screws.

8. The ultra-deep plastic tote gas valve assisted demolding mechanism of claim 7, wherein, Corresponding vertical gas auxiliary flow channels (22) are arranged in the upper inlay block (19), the middle inlay block (20) and the lower inlay block (21), one-way valves (23) are arranged at the top ends of the gas auxiliary flow channels (22), and an air inlet flow channel (24) connected with the gas auxiliary flow channels (22) is further arranged in the lower mold plate (3).

9. The ultra-deep plastic tote gas valve assisted ejection mechanism of claim 1, wherein, The top of the middle mold plate (2) is recessed inwardly and provided with an upper cover mounting groove (25), and a plurality of cooling flow channel structures are arranged in the circumferential direction in the upper cover mounting groove (25).

10. The ultra-deep plastic receptacle air valve assisted demolding mechanism of claim 9, wherein, The cooling flow channel structure comprises an arc-shaped connecting flow channel (26), and a plurality of vertical cooling flow channels (27) are vertically arranged at the bottom of the connecting flow channel (26).

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