Plastic cup processing mold convenient to demold

Abstract

The utility model provides a plastic cup processing mould convenient to demould, which comprises two parallel side plates, the middle parts of one sides of the side plates are connected through a mounting seat, a plurality of convex moulds are horizontally mounted on the side surface of the mounting seat, the two ends of the two side plates are respectively connected through a telescopic mechanism, and mould seats are arranged at the upper and lower positions of the convex moulds. The two die holders are connected with the telescopic mechanism, a plurality of cavities corresponding to the male dies in position are formed in the close surfaces of the two die holders, the two die holders are driven by the telescopic mechanism to be closed or opened, and when the two die holders are closed, the male dies are coaxially arranged in the cavities. When the cup mold is used and after a cup is cooled and molded, the plug is controlled to be separated from the end part of the convex mold, and then the hydraulic cylinder is controlled to retract so as to drive the two mold bases to be separated, so that the molded cup can stay on the convex mold, a certain distance is formed between the two mold bases and the convex mold, and the distance is large enough, so that the cup on the convex mold is completely exposed outside; and demolding and material taking are convenient.

Description

Technical Field

[0001] This utility model relates to the field of plastic cup mold technology, specifically to a mold for processing plastic cups that facilitates demolding. Background Technology

[0002] Injection molds are tools used to produce plastic products. Specifically, they involve injecting molten plastic into a mold cavity under high pressure using an injection molding machine, where it cools and solidifies to obtain the molded part. After injection molding, the molded plastic part often remains inside the mold cavity, which has a certain depth. This can prevent the molded part from being quickly removed during demolding. Therefore, we propose a mold for processing plastic cups that facilitates demolding. Utility Model Content

[0003] This invention provides a mold for processing plastic cups that facilitates demolding, thus solving the problems mentioned in the background art.

[0004] The technical solution of this utility model is implemented as follows: A mold for processing plastic cups that is easy to demold includes two parallel side plates. The middle of one side of the side plates is connected by a mounting base. Multiple punches are horizontally mounted on the side of the mounting base. The two ends of the two side plates are connected by telescopic mechanisms. Mold seats are provided at the upper and lower positions of the punches. The two mold seats are connected to the telescopic mechanisms respectively. Multiple cavities corresponding to the punches are provided on the surfaces of the two mold seats that are close to each other. The two mold seats are closed or opened by the telescopic mechanism. When the two mold seats are closed, the punches are placed coaxially in the cavities, and there is a forming gap between the punches and the cavities. This utility model also includes multiple plugs that are coaxially arranged with the punches. The plugs are set on the carrier and are used to seal the ports of the cavities.

[0005] Preferably, the telescopic mechanism includes strip seats installed at both ends of the side plate, and a hydraulic cylinder is vertically installed in the middle of each strip seat. The telescopic ends of the hydraulic cylinders are all facing the mold base, and the telescopic ends of the hydraulic cylinders are all vertically connected to the strip support. The two ends of the strip support are connected to the side plate through a guide mechanism, and the two mold bases are respectively installed on the strip support.

[0006] Preferably, the carrier includes a mounting plate, a plug is mounted on one side surface of the mounting plate, the mounting plate is mounted on the side of the support plate, and a first connecting seat is provided on both sides of the support plate.

[0007] Preferably, each plug has an injection inlet at its center, and the mounting plate has a flow channel corresponding to the injection inlet on the side away from the plug. The injection inlet is connected to the flow channel, and an injection port connected to the flow channel is provided on one side of the mounting plate.

[0008] Preferably, the side of the mounting plate away from the plug is also provided with a heating groove, and a heating element is provided in the heating groove. A through hole communicating with the heating groove is provided on one side of the mounting plate, and the wiring terminal of the heating element extends out from the through hole.

[0009] Preferably, each mold base is provided with multiple heating holes, and each heating hole is provided with a heating element.

[0010] Preferably, a second connecting seat is provided on the side of each of the two side plates that is far apart from each other.

[0011] Preferably, the guiding mechanism includes a guide rail mounted on the side plate, and slides are installed at both ends of the strip support, with the slides slidably mounted on the guide rail.

[0012] Preferably, the cavity has a receiving groove at one end edge near the plug, and one end of the plug is placed in the receiving groove, at which time there is a gap between the plug and the end of the punch.

[0013] Compared with the prior art, when the cup is cooled and formed, the control plug is first separated from the end of the punch, and then the hydraulic cylinder is controlled to retract, thereby driving the two mold seats to separate. This allows the formed cup to stay on the punch. Because there is a certain distance between the two mold seats and the punch, and this distance is large enough, the cup on the punch is completely exposed, which is convenient for demolding and material removal. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of one side of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.

[0017] Figure 3 This is a schematic diagram of the explosive structure of this utility model.

[0018] Figure 4 This is a structural schematic diagram of part of this utility model.

[0019] Figure 5 This is a structural schematic diagram of one side of the mounting plate of this utility model.

[0020] Figure 6 This is a schematic diagram of the other side of the mounting plate of this utility model.

[0021] Figure 7 This is the main view of the utility model. Figure 1 .

[0022] Figure 8 This is the main view of the utility model. Figure 2 .

[0023] In the diagram: 1. Support plate; 2. Mounting plate; 3. Plug; 4. Injection inlet; 5. First connecting seat; 6. Strip seat; 7. Second connecting seat; 8. Side plate; 9. Mounting seat; 10. Hydraulic cylinder; 11. Slide; 12. Strip support; 13. Heating hole; 14. Guide rail; 15. Mold base; 16. Cavity; 17. Probe hole; 18. Injection port; 19. Punch; 20. Flow channel; 21. Through hole; 22. Heating groove; 23. Receiving groove. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figures 1 to 8 This utility model provides a technical solution: a mold for processing plastic cups that is easy to demold, including two parallel side plates 8. The middle part of one side of the side plate 8 is connected by a mounting base 9. The two ends of the mounting base 9 are connected to the side plate 8 by bolts. Multiple punches 19 are horizontally installed on the side of the mounting base 9. The shape of the punches 19 matches the shape of the inner cavity of the plastic cup.

[0026] The two ends of the two side plates 8 are connected by a telescopic mechanism, such as... Figure 2 and Figure 4 As shown, the telescopic mechanism includes strip seats 6 installed at both ends of the side plate 8. The two ends of the strip seats 6 are fastened to the side plate 8 by bolts. A hydraulic cylinder 10 is vertically installed in the middle of each strip seat 6. The telescopic end of each hydraulic cylinder 10 is vertically connected to a strip support 12. The two ends of the strip support 12 are connected to the side plate 8 through a guide mechanism. The guide mechanism includes a guide rail 14 installed on the side plate 8. A slide seat 11 is installed at both ends of the strip support 12. The slide seats 11 are slidably installed on the guide rail 14. In this way, when the hydraulic cylinder 10 telescopic, it can drive the strip support 12 to move along the guide rail 14. When the two hydraulic cylinders 10 extend at the same time, the two strip supports 12 move closer to each other. When the two hydraulic cylinders 10 retract at the same time, the two strip supports 12 move away from each other.

[0027] like Figure 2As shown, mold bases 15 are provided at both the upper and lower positions of the punch 19. The two mold bases 15 are connected to the telescopic mechanism respectively. Specifically, the two mold bases 15 are installed on the strip support 12 respectively, and the telescopic ends of the hydraulic cylinder 10 are facing the mold bases 15. Therefore, when the strip support 12 moves closer or further away from each other, the two mold bases 15 also move closer or further away.

[0028] Multiple cavities 16 are provided on the adjacent surfaces of the two mold bases 15, with positions corresponding to the punches 19. The two mold bases 15 are closed or opened by the telescopic mechanism. When the two mold bases 15 are closed, as... Figure 7 and Figure 8 As shown, the cavities 16 on the upper and lower mold bases 15 are combined together. The shape of the cavity 16 is consistent with the shape of the plastic cup, and the punch 19 is coaxially placed in the cavity 16. A forming gap is provided between the punch 19 and the cavity 16. The gap is consistent with the cup to be formed, that is, the cup is formed in the gap.

[0029] Furthermore, such as Figure 7 and Figure 8 As shown, when the upper and lower mold bases 15 are closed, the side of the mold base 15 closest to the mounting base 9 is adjacent to the root of the punch 19 (as shown). Figure 8 (As indicated by the middle arrow A) sealing, that is, the root of the punch 19 seals one end of the cavity 16. However, the other end of the cavity 16 also needs to be sealed. Therefore, this application also includes a plurality of plugs 3 respectively coaxially arranged with the punch 19. The plugs 3 are used to seal the port of the cavity 16.

[0030] like Figure 1 As shown, the plug 3 is set on the carrier, which includes the mounting plate 2. The plug 3 is installed on one side surface of the mounting plate 2. The mounting plate 2 is installed on the side of the bearing plate 1. The edge of the mounting plate 2 is fastened to the bearing plate 1 by bolts.

[0031] Each plug 3 has an injection inlet 4 at its center, such as Figure 5 and Figure 6 As shown, the mounting plate 2 has a flow channel 20 on the side away from the plug 3, which corresponds to the injection inlet 4. The injection inlet 4 is connected to the flow channel 20. An injection port 18 connected to the flow channel 20 is provided on one side of the mounting plate 2. In actual use, the injection molding machine injects molten plastic into the flow channel 20 through the injection port 18. When the flow channel 20 is full of molten plastic, the plastic will flow into the injection inlet 4.

[0032] Based on the above embodiments, a second connecting seat 7 is provided on the side of the two side plates 8 that are far apart from each other, and a first connecting seat 5 is provided on both sides of the bearing plate 1. It should be noted that the part composed of the two side plates 8 and the mold base 15, and the part composed of the bearing plate 1 and the plug 3, are two parts of the mold. The provided second connecting seat 7 and first connecting seat 5 respectively install the two independent parts on the injection molding machine. The number of second connecting seat 7 and first connecting seat 5 on the same side is at least two.

[0033] Figure 7 The initial positions of the two mold bases 15 are as follows: the mold bases 15 are distributed on the upper and lower sides of the punch 19. When producing cups, the upper and lower mold bases 15 are first closed by the hydraulic cylinder 10, so that the punch 19 is placed in the cavity 16. Then the plug 3 moves towards the punch 19 to seal the cavity 16. In this way, both ends of the cavity 16 can be sealed by the root of the punch 19 and the plug 3.

[0034] like Figure 2 and Figure 4 As shown, a receiving groove 23 is provided at one end edge of the cavity 16 near the end of the plug 3. The shape and size of the plug 3 are matched with the receiving groove 23. One end of the plug 3 is placed in the receiving groove 23. At this time, there is a gap between the plug 3 and the end of the punch 19. This gap is used to form the bottom of the cup. Therefore, the molten plastic flows into each cavity 16 from the injection hole 4, allowing the molten plastic to fill the entire gap. After cooling for a period of time, the plastic formed in the gap can form a cup.

[0035] At this point, the hydraulic cylinder 10 can be controlled to retract, thereby causing the two mold bases 15 to separate. Before the two mold bases 15 separate, the plug 3 is first separated from the end of the punch 19. After the two mold bases 15 separate, the formed cup stays on the punch 19. The two mold bases 15 are a certain distance from the punch 19, so the cup on the punch 19 is completely exposed, which is convenient for demolding and material removal. That is, the cup can be directly removed from the punch 19.

[0036] Based on the above embodiments, further optimization can be achieved. The side of the mounting plate 2 away from the plug 3 is also provided with a heating groove 22. There are multiple heating grooves 22, and a heating element is provided in the heating groove 22. A through hole 21 communicating with the heating groove 22 is provided on one side of the mounting plate 2, and the wiring terminal of the heating element extends out from the through hole 21.

[0037] Each mold base 15 is provided with multiple heating holes 13, and each heating hole 13 is provided with a heating element. The heating element is a heating rod set in the heating groove 22 and the heating hole 13. It is used to heat the mounting plate 2, the plug 3, and the mold base 15 to the preset temperature, so as to avoid the temperature of the mounting plate 2, the plug 3, the mold base 15 and other components being below the standard, which would lead to poor injection molding flow and result in defective injection molded products.

[0038] The mold base 15 and the mounting plate 2 are also provided with a detection hole 17, and a temperature probe is installed in the detection hole 17. In actual use, the temperature probe and the heating element are connected to the control system of the injection molding machine, so that the control system can control the temperature.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold for processing plastic cups that facilitates demolding, comprising two parallel side plates (8), characterized in that, The middle part of one side of the side plate (8) is connected by the mounting base (9), and multiple punches (19) are horizontally mounted on the side of the mounting base (9). The two ends of the two side plates (8) are connected by telescopic mechanisms; and, The upper and lower positions of the punch (19) are provided with mold bases (15). The two mold bases (15) are respectively connected to the telescopic mechanism. The surfaces of the two mold bases (15) are provided with multiple cavities (16) corresponding to the punch (19). The two mold bases (15) are closed or opened by the telescopic mechanism. When the two mold bases (15) are closed, the punch (19) is placed coaxially in the cavity (16), and there is a forming gap between the punch (19) and the cavity (16). It also includes multiple plugs (3) that are coaxially arranged with the punch (19). The plugs (3) are arranged on the carrier and are used to seal the port of the cavity (16).

2. The mold for processing plastic cups that facilitates demolding as described in claim 1, characterized in that, The telescopic mechanism includes strip seats (6) installed at both ends of the side plate (8). A hydraulic cylinder (10) is vertically installed in the middle of each strip seat (6), and the telescopic ends of the hydraulic cylinder (10) are all facing the mold base (15). The telescopic ends of the hydraulic cylinder (10) are vertically connected to the strip support (12). The two ends of the strip support (12) are connected to the side plate (8) through the guide mechanism. The two mold bases (15) are respectively installed on the strip support (12).

3. The mold for processing plastic cups that facilitates demolding as described in claim 2, characterized in that, The carrier includes a mounting plate (2), a plug (3) is mounted on one side surface of the mounting plate (2), the mounting plate (2) is mounted on the side of the bearing plate (1), and the bearing plate (1) is provided with a first connecting seat (5) on both sides.

4. The mold for processing plastic cups that facilitates demolding as described in claim 3, characterized in that, The center of each plug (3) is provided with an injection inlet (4); The mounting plate (2) has a flow channel (20) on the side away from the plug (3) that corresponds to the injection inlet (4). The injection inlet (4) is connected to the flow channel (20). An injection port (18) connected to the flow channel (20) is provided on one side of the mounting plate (2).

5. The mold for processing plastic cups that facilitates demolding as described in claim 4, characterized in that, A heating groove (22) is provided on the side of the mounting plate (2) away from the plug (3). A heating element is provided in the heating groove (22). A through hole (21) communicating with the heating groove (22) is provided on one side of the mounting plate (2). The wiring terminal of the heating element extends out from the through hole (21).

6. The mold for processing plastic cups that facilitates demolding as described in claim 5, characterized in that, Each mold base (15) is provided with multiple heating holes (13), and each heating hole (13) is provided with a heating element.

7. The mold for processing plastic cups that facilitates demolding as described in claim 1, characterized in that, A second connecting seat (7) is provided on the side of each of the two side plates (8) that are far apart from each other.

8. The mold for processing plastic cups that facilitates demolding as described in claim 2, characterized in that, The guiding mechanism includes a guide rail (14) mounted on the side plate (8), and slides (11) are mounted on both ends of the strip support (12). The slides (11) are slidably mounted on the guide rail (14).

9. The mold for processing plastic cups with convenient demolding as described in any one of claims 1-8, characterized in that, The cavity (16) has a receiving groove (23) at one end edge near the plug (3), and one end of the plug (3) is placed in the receiving groove (23). At this time, there is a gap between the plug (3) and the end of the punch (19).

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