A portable injection mold for a cup

Abstract

The utility model belongs to injection mold field provides a kind of portable injection mold for cup barrel, it includes: fixed mould base;Movable mould base, it is movably arranged in the lower of fixed mould base, and after the adhesion of movable mould base and fixed mould base, product cavity for forming cup barrel is formed between movable mould base and fixed mould base;Pushing material subassembly is set in movable mould base, and the movable end of pushing material subassembly is connected with movable mould push plate, and movable mould push plate is used to push cup barrel to separate to product cavity outside.Compared with prior art, the utility model has the advantages that first forming column and second forming column are movably installed on movable mould push plate by elastic member respectively, stable forming clamping structure can be formed in injection molding stage, automatic separation is realized by elastic reset in demolding stage, additional complex demolding mechanism or manual intervention is not needed, demolding efficiency and production automation level are significantly improved, structure is simple, action is reliable, and appearance quality and structural integrity of product are effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of injection molds, and specifically relates to a convenient injection mold for cups and barrels. Background Technology

[0002] Currently, cup and barrel products are widely used in the food, beverage, and daily necessities industries. To facilitate carrying, many cup and barrel products have a handle structure at the circumference of the port. The handle usually includes a pair of interlocking structures, such as a locking post and a locking groove. The handle is connected by inserting the locking post into the locking groove.

[0003] Traditional injection molds typically use fixed cores or slider mechanisms to form such interlocking structures. However, due to the certain embedding depth and fitting accuracy requirements of the interlocking structure, and its relatively small overall size, the interlocking structure is easily damaged during demolding, ultimately affecting product quality. In addition, traditional molds are relatively complex in structure, have low demolding efficiency, and require additional drive mechanisms or manual intervention, increasing production costs and maintenance difficulty. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a convenient injection mold for cups and barrels that is simple in structure, reliable in operation, can achieve automatic demolding, and is not easily damaged in the product structure.

[0005] The objective of this utility model can be achieved by addressing the following technical problem: A convenient injection mold for a cup / bucket is provided, wherein the cup / bucket is connected to a first handle and a second handle located at the circumference of its port. The first handle has a locking post formed thereon, and the second handle has a locking groove formed thereon. The locking post is movably engaged into the locking groove to connect the first handle and the second handle into one unit. The injection mold includes:

[0006] Fixed mold base;

[0007] A movable mold base is movably disposed below the fixed mold base, and after the movable mold base and the fixed mold base are fitted together, a product cavity for molding the cup and barrel is formed between the movable mold base and the fixed mold base.

[0008] A material ejector assembly is disposed within the moving mold base. The movable end of the material ejector assembly is connected to a moving mold ejector plate, which is used to push the cup barrel out of the product cavity.

[0009] A first demolding assembly and a second demolding assembly are disposed within the moving mold push plate. The first demolding assembly is provided with a first forming post and a first elastic element. The first forming post movably penetrates the moving mold push plate to form the engaging groove. The first elastic element is movably sleeved on the first forming post, and its two ends are respectively movably pressed against the first forming post and the moving mold push plate. The second demolding assembly is provided with a second forming post and a second elastic element. The second forming post movably penetrates the moving mold push plate to form the engaging post. The first elastic element is movably sleeved on the second forming post, and its two ends are respectively movably pressed against the second forming post and the moving mold push plate.

[0010] When the moving mold pusher plate moves along the direction of the fixed mold base, the first forming post / second forming post can move in the opposite direction of the moving mold pusher plate due to the elastic release of the first elastic element / second elastic element, so that the first forming post and the second forming post are respectively disengaged from the locking groove and locking block after forming.

[0011] In the above-mentioned portable injection mold for cups and barrels, the moving mold push plate is provided with a guide groove in the vertical direction, and a connecting block is provided on both the first forming column and the second forming column. The first elastic element or the second elastic element is placed in the guide groove, and one end is connected to the connecting block, and the other end is connected to the top wall of the guide groove.

[0012] In the above-mentioned portable injection mold for cups and barrels, the top end of the first molding post is formed with a protrusion for molding the engaging groove, and the top end of the second molding post is formed with a recessed groove for molding the engaging post.

[0013] In the above-mentioned portable injection mold for cup bucket, both the first demolding component and the second demolding component further include a fixed post disposed in the moving mold push plate. The end of the fixed post forms a limiting block, and a limiting hole is opened in the connecting block. The limiting block extends into the guide groove and is inserted into the limiting hole.

[0014] In the aforementioned portable injection mold for cups and buckets, the fixed column and the moving mold push plate are threadedly connected.

[0015] In the aforementioned portable injection mold for cups and barrels, the ejector assembly further includes a top plate and an ejector pin fixing plate, the top plate abutting against the bottom wall of the ejector pin fixing plate; an ejector pin is mounted on the ejector pin fixing plate, and the ejector pin is connected to the moving mold ejector plate.

[0016] In the aforementioned portable injection mold for cups and barrels, a demolding gap is formed between the ejector pin fixing plate and the moving mold base.

[0017] In the aforementioned portable injection mold for cups and barrels, an anti-misalignment guide sleeve is installed in both the top plate and the ejector pin fixing plate, and a guide post is installed in the moving mold base. The anti-misalignment guide sleeve is movably sleeved on the guide post.

[0018] In the aforementioned portable injection mold for cups and barrels, an inclined pad is installed on the fixed mold base, and an inclined surface is formed on the inner wall of the moving mold base, with the inclined pad movably attached to the inclined surface.

[0019] In the aforementioned portable injection mold for cups and barrels, a guide hole is provided in the moving mold base, and a guide post is provided in the fixed mold base, with the guide post being movably inserted into the guide hole.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention provides a convenient injection mold for cups and barrels. The first molding column and the second molding column are respectively movably mounted on the moving mold push plate through elastic elements. During the injection molding stage, the molding and locking structure can be stably formed. During the demolding stage, the elastic reset is used to achieve automatic release. There is no need to set up a complicated demolding mechanism or make manual intervention. It significantly improves the demolding efficiency and the level of production automation. The structure is simple, the operation is reliable, and it effectively improves the appearance quality and structural integrity of the product.

[0022] (2) By inserting the limiting block into the limiting hole to form a limiting structure, the forming column is effectively prevented from being dislodged from the moving mold push plate under the reset force of the elastic element, ensuring that the movement trajectory of the forming column is stable and reliable during the demolding process, improving the accuracy and safety of the mold operation, and also helping to extend the service life of the mold.

[0023] (3) The matching structure of the guide post and the guide hole provides precise guidance for the mold opening and closing action, ensures the alignment accuracy between the moving mold base and the fixed mold base, avoids product defects or mold damage caused by misalignment, and thus improves the stability and forming accuracy of the mold operation. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the cup and barrel;

[0025] Figure 2 This is a schematic diagram of the moving mold base;

[0026] Figure 3 yes Figure 2 Schematic diagram of the cross section of AA;

[0027] Figure 4 This is a schematic diagram of the installation structure of the first demolding component and the second demolding component;

[0028] Figure 5 This is a schematic diagram of the installation structure of the material pusher assembly;

[0029] Figure 6 This is a schematic diagram of the fixed mold base.

[0030] In the diagram, 1 is the cup holder; 10 is the first handle; 100 is the locking post; 11 is the second handle; and 110 is the locking groove.

[0031] 2. Fixed mold base; 20. Inclined pad; 21. Guide pillar;

[0032] 3. Moving mold base; 30. Inclined surface; 31. Guide hole;

[0033] 4. Ejector assembly; 40. Moving mold ejector plate; 400. Guide groove; 41. Top plate; 42. Ejector pin fixing plate; 420. Demolding clearance; 43. Ejector pin; 44. Anti-detachment guide sleeve; 45. Guide pillar;

[0034] 5. First demolding component; 50. First forming pillar; 500. Protrusion block; 51. First elastic element;

[0035] 6. Second demolding assembly; 60. Second forming pillar; 600. Recessed groove; 61. Second elastic element;

[0036] 70. Connecting block; 700. Limiting hole; 71. Fixing post; 710. Limiting block. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0039] like Figures 1 to 6 As shown, this utility model discloses a convenient injection mold for a cup container 1. The cup container 1 is connected to a first handle 10 and a second handle 11 located at the circumference of its port. The first handle 10 has a locking post 100 formed on it, and the second handle 11 has a locking groove 110 formed on it. The locking post 100 is movably engaged into the locking groove 110 to connect the first handle 10 and the second handle 11 into one piece.

[0040] The injection mold includes: a fixed mold base 2; a movable mold base 3, which is movably disposed below the fixed mold base 2, and after the movable mold base 3 and the fixed mold base 2 are fitted together, a product cavity for molding the cup 1 is formed between the movable mold base 3 and the fixed mold base 2; a pusher assembly 4, disposed within the movable mold base 3, with a movable mold pusher plate 40 connected to the movable end of the pusher assembly 4, the movable mold pusher plate 40 being used to push the cup 1 out of the product cavity; a first demolding assembly 5 and a second demolding assembly 6, disposed within the movable mold pusher plate 40, the first demolding assembly 5 being provided with a first forming post 50 and a first elastic element 51, the first forming post 50 movably penetrating the movable mold pusher plate 40 to form a locking groove 110; the first elastic element 51 being movably sleeved on the first forming post 50, and ... The two ends of 1 are respectively movably pressed against the first forming post 50 and the moving mold push plate 40; the second demolding assembly 6 is provided with a second forming post 60 and a second elastic member 61. The second forming post 60 movably passes through the moving mold push plate 40 to form the locking post 100; the first elastic member 51 is movably sleeved on the second forming post 60, and the two ends of the second elastic member 61 are respectively movably pressed against the second forming post 60 and the moving mold push plate 40; when the moving mold push plate 40 moves along the direction of the fixed mold base 2, the first forming post 50 / second forming post 60 can move in the opposite direction of the movement of the moving mold push plate 40 due to the elastic release of the first elastic member 51 / second elastic member 61, so that the first forming post 50 and the second forming post 60 are respectively disengaged from the locking groove 110 and the locking block after forming.

[0041] like Figure 1 As shown, in this embodiment, the first handle strap 10 and the second handle strap 11 are both semi-circularly connected to each other at the circumference of the cup barrel 1 port. After injection molding, the first handle strap 10 and the second handle strap 11 can be folded over the cup barrel 1 to the top of the port and inserted into the locking groove 110 by the formed locking post 100 to form a convenient handle for the user to carry the cup barrel 1. Specifically, when the moving mold base 3 and the fixed mold base 2 are attached, the melt is injected into the product cavity through the injection port and cooled and formed into the cup barrel 1 in the cavity. At the same time, the first elastic element 51 and the second elastic element 61 are squeezed and contracted respectively to ensure the stability of the locking groove 110 and the locking post 100 formed by the first forming post 50 and the second forming post 60 respectively. After injection molding is completed, the moving mold base 3 and the fixed mold base 2 are separated (i.e., mold opening operation). As the pusher assembly 4 drives the moving mold pusher plate 40 along the... Figure 3 or Figure 5 Moving vertically upwards will move the cup 1 away from the moving mold base 3. Simultaneously, due to the movement of the moving mold push plate 40, the first forming pillar 50 and the second forming pillar 60, due to the elastic release of the elastic elements, move relative to the moving mold push plate 40 along... Figure 3 or Figure 5The downward movement allows the first / second forming pillar 60 to disengage from the forming locking groove 110 and the locking pillar 100. Therefore, the restoring force of the elastic element ensures that the forming pillar automatically disengages during the demolding process of the cup barrel 1, avoiding jamming or damage to the forming structure. In this embodiment, the first / second forming pillar 60 automatically retracts during demolding by using the cooperation of the elastic element and the forming pillar, without the need for an additional driving device. This ensures that the locking pillar 100 and the locking groove 110 are not damaged during the demolding process, improving the yield, reducing manual operation, and enhancing automation and production efficiency.

[0042] The moving mold push plate 40 has a guide groove 400 in the vertical direction. The first forming column 50 and the second forming column 60 are both provided with connecting blocks 70. The first elastic element 51 or the second elastic element 61 is placed in the guide groove 400, and one end is connected to the connecting block 70, and the other end is connected to the top wall of the guide groove 400.

[0043] like Figure 3 and Figure 4 As shown, by opening a vertical guide groove 400 on the moving mold push plate 40 and setting a connecting block 70 on the first forming pillar 50 and the second forming pillar 60, and setting the elastic element in the guide groove 400, the first / second forming pillar 60 can move stably along the guide groove 400 during the demolding process, which effectively improves the guidance and stability of the demolding action and prevents the first / second forming pillar 60 from shifting or getting stuck during the demolding process, thereby ensuring the molding quality and the reliability of the mold operation.

[0044] The top end of the first molding post 50 has a protrusion 500 for molding the engagement groove 110, and the top end of the second molding post 60 has a recessed groove 600 for molding the engagement post 100.

[0045] like Figure 3 and Figure 4 As shown, in this embodiment, the protrusion 500 and the recessed groove 600 can form the required engagement groove 110 and engagement post 100 simultaneously with the forming of the first handle strap 10 and the second handle strap 11. In other words, this structural design allows the forming post to participate precisely in the forming process, ensuring the dimensional accuracy and surface quality of the engagement structure, improving the connection reliability between the handle straps, and also facilitating the smooth progress of subsequent demolding operations.

[0046] Both the first demolding assembly 5 and the second demolding assembly 6 further include a fixed post 71 disposed in the moving mold push plate 40. The end of the fixed post 71 forms a limiting block 710. A limiting hole 700 is opened in the connecting block 70. The limiting block 710 extends into the guide groove 400 and is inserted into the limiting hole 700.

[0047] like Figure 3 and Figure 4As shown, when the material assembly pushes the moving mold pusher plate 40 upward, causing the cup barrel 1 to detach from the mold, the elastic element begins to release the compressive force, pushing the connecting block 70 downward along the guide groove 400. Since the limiting block 710 is inserted in the limiting hole 700, the movement stroke of the first / second forming pillar 60 is limited and controlled. This structure effectively prevents the forming pillar from moving excessively during demolding, avoiding damage to the demolding assembly, while ensuring the consistency and stability of each demolding action, improving the service life and forming accuracy of the mold. It should be noted that since the first handle belt 10 and the second handle belt 11 are relatively small, the forming locking groove 110 and locking pillar 100 are also relatively small. Therefore, the distance that the first / second forming pillar 60 moves relative to the moving mold pusher plate 40 is relatively short, insufficient to cause positional interference between the limiting block 710 and the connecting block 70.

[0048] Preferably, in this embodiment, the fixed column 71 and the moving mold push plate 40 are connected by a thread, which facilitates installation and disassembly, and makes it convenient to maintain and replace the demolding components. This improves the repairability and maintainability of the mold, reduces the maintenance cost of the mold, and allows for flexible adjustment of the position and structure of the demolding components according to actual production needs.

[0049] The ejector assembly 4 also includes a top plate 41 and an ejector pin fixing plate 42. The top plate 41 abuts against the bottom wall of the ejector pin fixing plate 42. An ejector pin 43 is installed on the ejector pin fixing plate 42 and is connected to the moving mold ejector plate 40.

[0050] like Figure 3 and Figure 5 As shown, the top plate 41 can move along the path after being pushed by external power (hydraulic cylinder or mechanical ejection device). Figure 5 The vertical upward movement, in turn, pushes the top rod fixing plate 42 and the top rod 43 synchronously along... Figure 5 Moving upwards, simultaneously, the elastic element is released and drives the first forming post 50 and the second forming post 60 along... Figure 3 The vertical downward movement enables the demolding of the locking structure. Therefore, the structural design of the top plate 41 and the ejector pin fixing plate 42, as well as the connection method of the ejector pin 43 and the moving mold push plate 40, enable the ejector assembly 4 to have sufficient thrust and stability when pushing the cup barrel 1 to demold. The design of the top plate 41 also plays a role in buffering and supporting, preventing the ejector pin 43 from bending or breaking during the demolding process, thereby improving the overall demolding efficiency and reliability of the mold.

[0051] Preferably, in this embodiment, a demolding gap 420 is provided between the ejector pin fixing plate 42 and the moving mold base 3, which provides necessary space buffer for the demolding process, so that the ejector pin 43 can run smoothly when pushing the cup barrel 1 to demold, avoiding demolding failure or product damage caused by interference between the ejector pin 43 and the mold, thereby improving the demolding success rate and the operating efficiency of the mold.

[0052] like Figure 5 As shown, by setting an anti-misalignment guide sleeve between the top plate 41 and the ejector pin fixing plate 42, and setting a guide post 45 in the moving mold base 3, the ejector assembly 4 has good guidance during movement, preventing the ejector pin 43 from shifting or misaligning during demolding, thereby ensuring the accuracy and consistency of demolding action and improving the running precision and service life of the mold.

[0053] like Figure 2 and Figure 6 As shown, the inclined pad 20 on the fixed mold base 2 cooperates with the inclined surface 30 on the inner wall of the moving mold base 3, so that the moving mold base 3 can achieve self-centering function during the closing process, improve the accuracy and stability of mold closing, reduce product defects caused by mold misalignment, and also improve the service life and production efficiency of the mold.

[0054] like Figure 2 and Figure 6 As shown, a guide hole 31 is provided in the moving mold base 3, and a guide post 21 is provided in the fixed mold base 2. The guide post 21 is inserted into the guide hole 31. This guiding structure ensures that the moving mold base 3 and the fixed mold base 2 maintain good alignment and guidance during the mold opening and closing process, preventing mold misalignment or jamming, thereby improving the stability of mold operation and the quality of molded products.

[0055] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A portable injection mold for a cup holder, wherein the cup holder is connected to a first handle and a second handle at the circumference of its port, the first handle having a locking post formed thereon, and the second handle having a locking groove formed thereon, the locking post being movably engaged into the locking groove to connect the first handle and the second handle into one unit, characterized in that... The injection mold includes: Fixed mold base; A movable mold base is movably disposed below the fixed mold base, and after the movable mold base and the fixed mold base are fitted together, a product cavity for molding the cup and barrel is formed between the movable mold base and the fixed mold base. A material ejector assembly is disposed within the moving mold base. The movable end of the material ejector assembly is connected to a moving mold ejector plate, which is used to push the cup barrel out of the product cavity. A first demolding assembly and a second demolding assembly are disposed within the moving mold push plate. The first demolding assembly is provided with a first forming post and a first elastic element. The first forming post movably penetrates the moving mold push plate to form the engaging groove. The first elastic element is movably sleeved on the first forming post, and its two ends are respectively movably pressed against the first forming post and the moving mold push plate. The second demolding assembly is provided with a second forming post and a second elastic element. The second forming post movably penetrates the moving mold push plate to form the engaging post. The first elastic element is movably sleeved on the second forming post, and its two ends are respectively movably pressed against the second forming post and the moving mold push plate. When the moving mold pusher plate moves along the direction of the fixed mold base, the first forming post / second forming post can move in the opposite direction of the moving mold pusher plate due to the elastic release of the first elastic element / second elastic element, so that the first forming post and the second forming post are respectively disengaged from the locking groove and locking block after forming.

2. A convenient injection mold for cups and buckets according to claim 1, characterized in that, The moving mold push plate has a guide groove in the vertical direction. Both the first forming column and the second forming column are provided with connecting blocks. The first elastic element or the second elastic element is placed in the guide groove, with one end connected to the connecting block and the other end connected to the top wall of the guide groove.

3. A portable injection mold for cups and buckets according to claim 1, characterized in that, The top end of the first molding post has a protrusion for molding the engagement groove, and the top end of the second molding post has a recess for molding the engagement post.

4. A convenient injection mold for cups and buckets according to claim 2, characterized in that, Both the first demolding assembly and the second demolding assembly further include a fixed post disposed in the moving mold push plate. The end of the fixed post forms a limiting block. A limiting hole is opened in the connecting block. The limiting block extends into the guide groove and is inserted into the limiting hole.

5. A convenient injection mold for cups and buckets according to claim 4, characterized in that, The fixed column and the moving mold push plate are connected by threads.

6. A convenient injection mold for cups and buckets according to claim 4, characterized in that, The ejector assembly also includes a top plate and an ejector rod fixing plate, the top plate abutting against the bottom wall of the ejector rod fixing plate; an ejector rod is installed on the ejector rod fixing plate, and the ejector rod is connected to the moving mold ejector plate.

7. A convenient injection mold for cups and buckets according to claim 6, characterized in that, A demolding gap is formed between the ejector pin fixing plate and the moving mold base.

8. A convenient injection mold for cups and buckets according to claim 6, characterized in that, An anti-misalignment guide sleeve is installed in both the top plate and the top rod fixing plate, and a guide post is installed in the moving mold base. The anti-misalignment guide sleeve is movably sleeved on the guide post.

9. A portable injection mold for cups and buckets according to claim 1, characterized in that, An inclined pad is installed on the fixed mold base, and an inclined surface is formed on the inner wall of the moving mold base. The inclined pad is movably attached to the inclined surface.

10. A convenient injection mold for cups and buckets according to claim 1, characterized in that, The moving mold base is provided with a guide hole, and the fixed mold base is provided with a guide post, which is movably inserted into the guide hole.

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