Mold opening and closing pouring mold

Abstract

The utility model discloses a mold opening and closing pouring mold which comprises a first mold and a second mold connected with the first mold in a buckled mode, the edge, facing the second mold, of the first mold is provided with a first abutting edge, and a first containing groove is defined by the first abutting edge; the edge of the second mold is provided with a second abutting edge facing the first mold, a second containing groove is defined by the second abutting edge, the first containing groove and the second containing groove are buckled to form a casting molding cavity, and the first abutting edge and the second abutting edge abut against each other to form a mold opening of the casting molding cavity. According to the sponge cushion, the buckling position of the first containing groove and the second containing groove, namely the mold opening, is moved to the side face of the sponge cushion, so that hard edges are prevented from being formed on the top face or the bottom face of the cushion. And the wear of the leather and other fabrics is reduced, the demolding operation is simplified, and the realization of mechanical automatic demolding is facilitated, so that the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pouring mold technical field especially relates to a mold opening and closing pouring mold. BACKGROUND

[0002] In the existing sofa sponge cushion production process, mold opening and closing forming technology is widely used. This technology usually relies on the upper and lower two parts of the mold, and the two parts of the mold form a closed space in the pressing process, which is used for heating and compressing the sponge material, so as to realize the forming of the cushion. However, this traditional mold design has some inherent problems.

[0003] Firstly, the mold opening, that is, the mold port, is usually located on the top surface or bottom surface of the sponge pad. In the heating and pressing process, the gas in the sponge material needs to be discharged through the mold port to ensure that the cushion can be uniformly and tightly formed. However, this design often leads to the formation of hard edges and waste near the mold port. These hard edges not only affect the aesthetics of the cushion, but more importantly, if they are not cleaned, they will cause wear and tear to the leather and other materials that wrap the sponge pad, reducing the durability of the product. In order to solve this problem, manual cutting is currently used to remove the hard edges. However, this method not only increases the complexity and cost of the production process, but also reduces production efficiency. In addition, due to the difficulty in ensuring the accuracy and consistency of manual cutting, it may have a negative impact on the overall quality of the cushion.

[0004] On the other hand, the traditional mold design also has inconvenience in the demolding process. Since the mold port is located on the top surface or bottom surface, the sponge pad needs to be compressed to be taken out of the mold during demolding. This operation not only requires effort, but also is not conducive to the realization of mechanical automatic demolding. With the development of industrial automation technology, more and more enterprises are beginning to seek more efficient and automated production methods. Therefore, the shortcomings of the traditional mold design in demolding are increasingly highlighted. SUMMARY

[0005] In order to overcome at least one of the defects of the prior art described above, the utility model provides a mold opening and closing pouring mold. It can solve the problems of difficult demolding and hard edge wear of leather and other materials.

[0006] The technical scheme adopted by the utility model to solve the problem is:

[0007] The utility model provides a kind of open and close mould pouring mould, including first mould and the second mould of the first mould snap-fit connection, the edge of the first mould is provided with first abutment side towards the second mould, and the first abutment side is enclosed into first accommodating groove;The edge of the second mould is provided with second abutment side towards the first mould, and the second abutment side is enclosed into second accommodating groove, and the first accommodating groove and the second accommodating groove snap-fit form pouring forming cavity, and the first abutment side and the second abutment side abutment constitute the mould mouth of the pouring forming cavity.

[0008] By adopting the above scheme, first, by moving the snap-fit place of the first accommodating groove and the second accommodating groove, i.e., the mould mouth to the side of the sponge cushion, it avoids forming hard edges on the top surface or bottom surface of the cushion. In this way, even if hard edges and waste materials are generated during the heating and pressing process of the sponge material, they are located on the side of the cushion, thereby greatly reducing the abrasion to the leather and other fabrics. Secondly, since the mould mouth is located on the side, when the first mould and the second mould are separated, a part of the sponge cushion is exposed, which makes the demoulding process completed without extruding the sponge cushion. This design not only simplifies the demoulding operation, but also is conducive to the realization of mechanical automatic demoulding, thereby improving the production efficiency.

[0009] Further, the first abutment side is provided with a first pressing edge towards one side of the first accommodating groove, and the second abutment side is provided with a second pressing edge towards one side of the second accommodating groove, and the first pressing edge and the second pressing edge abut to form a pressing part extending into the pouring forming cavity.

[0010] By adopting the above scheme, the pressing part can more effectively compress and fix the sponge material during the heating and pressing process, to ensure the forming quality and shape stability of the cushion. At the same time, the existence of the pressing part also helps to reduce the overflow and deformation of the sponge material near the mould mouth, to further reduce the generation of hard edges and waste materials. Even if hard edges are generated at the mould mouth, they will be recessed to the inside of the sponge cushion itself, without causing abrasion to the leather and other fabrics, to further improve the inconvenience caused by hard edges.

[0011] Further, the first pressing edge includes a first face abutting against the second pressing edge and a second face facing away from the second pressing edge, and the included angle between the first face and the second face is an acute angle;The second pressing edge includes a third face abutting against the first pressing edge and a fourth face facing away from the first pressing edge, and the included angle between the third face and the fourth face is an acute angle.

[0012] By adopting the above scheme, the design of the acute angle enhances the compression effect of the compression edge. During the mold clamping process, the acute angle part of the first compression edge and the second compression edge can be more effectively embedded in the sponge material, thereby increasing the compression force and fixing force of the mold on the sponge material. This helps to ensure that the cushion can obtain uniform hardness and shape during the forming process, improving the forming quality and stability of the cushion. Since the compression edge is embedded in the sponge material in the form of an acute angle, it can cut and arrange the edges of the sponge material to some extent, reducing the overflow and deformation of the sponge material. This helps to reduce the generation of hard edges and waste, improving the aesthetics and durability of the cushion. In addition, the design of the acute angle also helps to improve the sealing performance of the mold. During the heating and pressing process, the inside of the mold needs to maintain a certain temperature and pressure. The compression edge design of the acute angle can more effectively prevent the leakage of heat and gas inside the mold, thereby improving the forming efficiency and quality of the cushion.

[0013] Further, the cross section of the pressing part is in the form of a triangle protruding into the injection molding cavity.

[0014] By adopting the above scheme, the sharp corner part of the triangle has a higher pressure concentration effect, so it can exert more pressure on a smaller contact area, thereby enhancing the compression effect of the mold on the sponge material and helping to reduce the generation of hard edges and waste near the mold opening.

[0015] Further, the included angle of the cross section of the pressing part towards the injection molding cavity is 90°.

[0016] By adopting the above scheme, the pressing part in the form of a right triangle also plays an important role in demolding. Due to the shape characteristics of the right angle part, the mold can be more easily separated from the sponge material during demolding, reducing the pulling and damage of the sponge material by the mold. At the same time, this design also helps to reduce the difficulty and cost of demolding, improving production efficiency.

[0017] Further, the cross section of the pressing part is in the form of a circular arc protruding into the injection molding cavity, or the cross section of the pressing part is in the form of a trapezoidal structure protruding into the injection molding cavity.

[0018] By adopting the above scheme, the same compression effect on the sponge material can also be achieved, reducing the generation of hard edges and waste near the mold opening.

[0019] Further, the distance by which the pressing part protrudes into the injection molding cavity is not higher than 1 cm.

[0020] By adopting the above scheme, it is also helpful to reduce the difficulty of demolding and ensure that the pressure exerted by the mold on the sponge material during the pressing process is moderate, thereby obtaining an ideal forming effect and not having a large impact on the appearance.

[0021] Further, the distance between the pressing part and the bottom of the first accommodating groove is not less than 3 cm, or the distance between the pressing part and the bottom of the second accommodating groove is not less than 3 cm.

[0022] By adopting the above scheme, it can be ensured that the sponge material can be fully melted and filled in the whole accommodating groove during the heating and pressing process, so that the sponge material can protrude from the accommodating groove during the demolding process, which is beneficial for the mechanical hand or manual taking demolding.

[0023] Further, the first mold is provided with an exhaust hole communicated with the first accommodating groove, and / or the second mold is provided with an exhaust hole communicated with the second accommodating groove, and an exhaust valve is arranged at each exhaust hole.

[0024] By adopting the above scheme, by arranging the exhaust hole, it can be ensured that the gas generated during the heating and melting of the sponge and other filling materials can be discharged in time, and the probability of generating hard edge waste from the mold exhaust is reduced; the exhaust valve is an important component connecting the exhaust hole and the outside, which can prevent external air from entering the mold interior when the mold is closed, and allow the gas in the mold interior to be smoothly discharged when the gas is generated in the mold interior.

[0025] Further, the first mold and the second mold are provided with a heating device for heating the first accommodating groove and the second accommodating groove.

[0026] By adopting the above scheme, sufficient heat is provided for the filling material in the mold, so that it can reach a molten or softened state, thereby being able to form a required shape under the closing pressure of the mold. For the sponge cushion, the heating device can ensure that the sponge material is uniformly heated, avoiding the situation of local overheating or non-melting, thereby improving the forming quality and consistency of the cushion.

[0027] In summary, the open-close mold pouring mold has the following technical effects:

[0028] 1. By designing the buckle of the mold on the side surface of the sponge cushion instead of the top surface or the bottom surface, the hard edge formed on the key contact surface of the cushion is effectively avoided. This not only improves the appearance of the cushion, but also significantly reduces the wear and tear of the leather and other materials caused by the hard edge, thereby prolonging the service life of the product.

[0029] 2. The design of the side mold opening makes the demolding process more convenient. When the first mold and the second mold are separated, part of the sponge cushion will naturally be exposed, without the need for forced removal by extrusion or the like. This not only simplifies the operation process and reduces the labor intensity, but also facilitates the introduction of mechanical automatic demolding technology, thereby greatly improving the production efficiency.

[0030] 3. The design of the side mold opening also helps to reduce the waste caused by hard edge cutting, and improves the utilization rate of the sponge material. This not only helps to reduce the production cost, but also meets the production concept of environmental protection and energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a three-dimensional structure schematic diagram of the embodiment of the utility model;

[0032] Figure 2 It is a sectional structure schematic diagram of the embodiment of the utility model;

[0033] Figure 3 It is Figure 2 The enlarged view of the A area in the middle;

[0034] Figure 4 It is a first edge pressing and second edge pressing separate structure schematic diagram of the embodiment of the utility model;

[0035] Figure 5 It is a local explosion structure schematic diagram of the embodiment of the utility model;

[0036] Figure 6 It is a local explosion structure schematic diagram of the embodiment of the utility model;

[0037] Figure 7 It is a local explosion structure schematic diagram of the embodiment of the utility model.

[0038] Among them, the meaning of the reference sign is as follows: 1, first mold; 11, first abutting edge; 12, first containing groove; 13, first edge pressing; 131, first surface; 132, second surface; 14, boss; 2, second mold; 21, second abutting edge; 22, second containing groove; 23, second edge pressing; 231, third surface; 232, fourth surface; 24, recess; 3, pouring forming cavity; 4, pressing part; 41, oiling part; 411, limiting structure; 42, clamping part; 5, exhaust hole; 6, exhaust valve; 7, heating equipment; 8, pull ring; 9, sponge pad. DETAILED DESCRIPTION

[0039] In order to better understand and implement, the following will be combined with the drawings of the utility model, the technical scheme in the embodiment of the utility model is described and discussed clearly and completely, obviously, only a part of the examples described here, not all examples, based on the examples in the utility model, all other examples obtained by the ordinary skill in the art without making creative labor, belong to the protection scope of the utility model.

[0040] In order to facilitate the understanding of the embodiment of the utility model, the following will be combined with the drawings to explain and describe the specific embodiment as an example, and each embodiment does not constitute the limitation of the embodiment of the utility model.

[0041] In the description of the utility model, it needs to explain, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0043] Embodiment 1 of the utility model refers to Figures 1-7 As shown in the figure, a kind of open-close die casting mold is disclosed, including first mold 1 and the second mold 2 of the first mold 1 buckle connection, the edge of the first mold 1 is provided with first abutment side 11 towards the second mold 2, and the first abutment side 11 is enclosed into first containing groove 12;The edge of the second mold 2 is provided with second abutment side 21 towards the first mold 1, and the second abutment side 21 is enclosed into second containing groove 22, and the first containing groove 12 and the second containing groove 22 are buckled to form pouring forming cavity 3, and the first abutment side 11 and the second abutment side 21 abut to constitute the mold mouth of the pouring forming cavity 3, by the buckling place of first containing groove 12 and second containing groove 22, i.e. mold mouth is moved to the side surface of sponge cushion, avoid the hard edge formed on the top surface or bottom surface of cushion. Even if sponge material produces hard edge and waste material in heating and pressing process, they will be located at the side surface of cushion, so as to greatly reduce the abrasion to leather and other fabrics. Since the mold mouth is located at the side surface, when the first mold 1 and the second mold 2 are separated, a part of sponge cushion will be exposed, which makes the demolding process be completed without extruding sponge cushion. This design not only simplifies demolding operation, but also is beneficial to the realization of mechanical automatic demolding, thereby improving production efficiency.

[0044] It needs to be explained that the utility model not only be applied to the open-close forming of sponge pad, but also can be adapted to other pouring open-close forming materials.

[0045] In a specific embodiment, the first mold 1 and the second mold 2 are both hollow shells, the first accommodating groove 12 and the second accommodating groove 22 are both located on the opposite faces of the first mold 1 and the second mold 2, and the first mold 1 and the second mold 2 are both provided with heating devices 7 in the shells thereof for heating the first accommodating groove 12 and the second accommodating groove 22. The heating devices include but are not limited to heating pipes or heating fins arranged along the groove walls of the first accommodating groove 12 and the second accommodating groove 22, which can provide sufficient heat for the filling material in the molds to reach a molten or softened state, so that the desired shape can be formed under the closing pressure of the molds. For the sponge cushion, the heating devices 7 can ensure that the sponge material is uniformly heated, avoiding local overheating or unmelting, thereby improving the forming quality and consistency of the cushion.

[0046] In some embodiments, in order to better align the first mold 1 and the second mold 2, a boss 14 is arranged on the edge of the first mold 1, and the second mold 2 is provided with a groove 24 corresponding to the boss 14 for plugging, so that the first mold 1 and the second mold 2 can be stably kept relative to each other after being buckled and will not be displaced. In order to further improve the alignment success rate of the first mold 1 and the second mold 2, the boss 14 is designed to be smaller in cross-sectional area near the end, and similarly, the groove 24 is shaped to correspond to the shape of the boss 14, so that the boss 14 can be inserted into the groove 24 without accurate alignment and can be automatically plugged into place under the action of gravity. It should be noted that the shape of the boss 14 includes but is not limited to a tapered boss or a prismatic boss, and the positions of the boss 14 and the groove 24 can be interchanged, as long as the clamping effect can be achieved. The number of the boss 14 and the groove 24 is more than two, when two are arranged, they are arranged in alignment, and when more than two are arranged, they can be arranged along the circumferential outer side of the first abutting edge 11 and the second abutting edge 21. Moreover, the boss 14 can also be a bolt, which is movably connected to the first mold 1 or the second mold 2, and the end of the bolt is provided with a chamfer for easy insertion into the groove 24. In this embodiment, the boss 14 and the groove 24 are both provided with four, in which the boss 14 is two prismatic bosses and two bolts, and the bolts and the prismatic bosses are arranged alternately, and the groove 24 is a groove structure corresponding to the structure of the corresponding boss 14. After buckling, the molds are relatively stable, reducing the displacement phenomenon and improving the reliability and durability of the molds.

[0047] In some embodiments, in order to facilitate the intelligent control of the opening and closing of the first mold 1 and the second mold 2, the side walls of the first mold 1 and the second mold 2 are further provided with pull rings 8, which are conducive to the grabbing and clamping by a robot or other intelligent equipment.

[0048] In order to make the sponge material forming process, the gas in the pouring cavity 3 can be more favorable discharge, in the first mold 1 is provided with the exhaust hole 5 communicated with the first containing groove 12, and / or, in the second mold 2 is provided with the exhaust hole 5 communicated with the second containing groove 22, each of the exhaust hole 5 is provided with exhaust valve 6, by setting the exhaust hole 5, ensure that the gas generated in the process of heating and melting of sponge and other filling materials can be discharged in time, reduce the probability of hard edge waste from the mold exhaust; the exhaust valve 6 is an important component connected with the exhaust hole 5 and the outside, it can prevent the outside air from entering the mold inside when the mold is closed, and allow the gas to be discharged smoothly when the gas is generated in the mold. In the embodiment 1, the exhaust hole 5 is arranged on the second mold 2, specifically, the exhaust hole is arranged on the groove bottom surface of the second containing groove 22, and the second mold 2 is provided with an exhaust valve 6 corresponding to each exhaust hole 5 in the shell. Exhaust during sponge forming process, without exhaust from the mold, thereby reducing the probability of hard edge.

[0049] In use, the first mold 1 and the second mold 2 are prepared to ensure that they are in a fastenable state, the boss 14 and the groove 24 are checked for correspondence, and the exhaust hole 5 and the exhaust valve 6 are checked for normal operation. Start the heating device 7 inside the first mold 1 and the second mold 2 to heat the first containing groove 12 and the second containing groove 22, ensure that the sponge material can reach the melting or softening state in the mold, at the same time of heating, put the appropriate amount of sponge material into the first containing groove 12 or the second containing groove 22, ensure the uniform distribution of the sponge material, avoid local overheating or unmelting, fasten the first mold 1 and the second mold 2 together, make the first abutting edge 11 and the second abutting edge 21 tightly abut, the boss 14 should be correctly inserted into the groove 24 to ensure the relative stability between the molds, the gas generated in the process of heating and melting of the sponge material will be discharged through the exhaust hole 5, the exhaust valve 6 will allow the gas to be discharged smoothly when the gas is generated in the mold, while preventing the outside air from entering the mold, under the closed pressure of the mold, the sponge material will be formed according to the shape of the mold, wait for the sponge material to cool and solidify, form the required cushion shape. When the sponge cushion cools and solidifies, separate the first mold 1 and the second mold 2, since the mold opening is located on the side, the demolding process can be completed without extruding the sponge cushion, a mechanical hand or other intelligent equipment can be used to grasp and clamp the mold through the pull ring 8 to simplify the demolding operation.

[0050] In the above operation process, since the mold opening still has a gap, a small amount of gas will be discharged from there, so there is a chance that the side of the sponge pad 9 will have a hard edge. In order to solve the above problem, in some embodiments, a first edge pressing 13 is arranged on one side of the first abutting edge 11 towards the first accommodating groove 12, and a second edge pressing 23 is arranged on one side of the second abutting edge 21 towards the second accommodating groove 22, and the first edge pressing 13 and the second edge pressing 23 abut to form a pressing part 4 extending to the inside of the injection molding cavity 3. The pressing part 4 can recess the hard edge formed on the side of the sponge pad 9 inwardly and will not be easily touched. Specifically, the pressing part 4 can more effectively compress and fix the sponge material during the heating and pressing process, ensuring the forming quality and shape stability of the cushion. At the same time, the existence of the pressing part 4 also helps to reduce the overflow and deformation of the sponge material near the mold opening, further reducing the generation of hard edges and waste, even if a hard edge is generated at the mold opening, it will be recessed inwardly to the sponge pad 9 itself, without causing wear to the leather and other fabrics, further improving the inconvenience caused by the hard edge.

[0051] The first edge pressing 13 includes a first face 131 abutting the second edge pressing 23 and a second face 132 facing away from the second edge pressing 23, and the included angle between the first face 131 and the second face 132 is an acute angle; the second edge pressing 23 includes a third face 231 abutting the first edge pressing 13 and a fourth face 232 facing away from the first edge pressing 13, and the included angle between the third face 231 and the fourth face 232 is an acute angle, the design of the acute angle enhances the compression effect of the edge pressing. During the mold clamping process, the acute angle part of the first edge pressing 13 and the second edge pressing 23 can more effectively embed into the sponge material, thereby increasing the compression force and fixing force of the mold on the sponge material. This helps to ensure that the cushion can obtain uniform hardness and shape during the forming process, improving the forming quality and stability of the cushion. Since the edge pressing is embedded in the sponge material in the form of an acute angle, it can cut and arrange the edges of the sponge material to some extent, reducing the overflow and deformation of the sponge material. This helps to reduce the generation of hard edges and waste, improve the aesthetics and durability of the cushion. In addition, the design of the acute angle also helps to improve the sealing performance of the mold. During the heating and pressing process, the inside of the mold needs to maintain a certain temperature and pressure. The design of the acute angle edge pressing can more effectively prevent the leakage of heat and gas inside the mold, thereby improving the forming efficiency and quality of the cushion.

[0052] It should be noted that the first face 131 and the third face 231 abut each other to form an abutting face, which can be parallel to the horizontal plane or inclined to the horizontal plane, and can be adjusted adaptively according to different shapes of the sponge pad 9, and the present embodiment is not limited in particular.

[0053] Optionally, the cross section of the pressing part 4 is a triangular structure protruding into the pouring cavity 3, the sharp corner part of the triangle has a higher pressure concentration effect, so that a greater pressure can be applied on a smaller contact area, thereby enhancing the compression effect of the mold on the sponge material, and helping to reduce the hard edge and waste near the mold opening. Preferably, the included angle of the cross section of the pressing part 4 towards the pouring cavity 3 is 90°, and the right-angled triangular structure of the pressing part 4 also plays an important role in demolding. Due to the shape characteristics of the right-angled part, the mold can be separated from the sponge material more easily during demolding, reducing the pulling and damage of the mold to the sponge material. At the same time, this design also helps to reduce the difficulty and cost of demolding, and improves the production efficiency.

[0054] Optionally, the cross section of the pressing part 4 is a circular arc structure protruding into the pouring cavity 3, or the cross section of the pressing part 4 is a trapezoidal structure protruding into the pouring cavity 3, thereby setting up, which can also achieve the compression effect of the sponge material, reduce the hard edge and waste near the mold opening. In other embodiments, the specific structure of the pressing part 4 is not specifically limited, as long as the same effect can be achieved.

[0055] In some embodiments, the pressing part 4 protrudes into the pouring cavity 3 by a distance not higher than 1cm, which helps to reduce the difficulty of demolding, ensures that the pressure applied by the mold to the sponge material during pressing is moderate, thereby obtaining ideal molding effect, and the appearance will not be greatly affected.

[0056] In order to facilitate the sponge pad 9 to be taken out of the first containing groove 12 and the second containing groove 22, the distance between the pressing part 4 and the bottom of the first containing groove 12 is not less than 3cm, or the distance between the pressing part 4 and the bottom of the second containing groove 22 is not less than 3cm. By setting up in this way, it can be ensured that during the heating and pressing process, the sponge material can be fully melted and filled in the entire containing groove, so that the sponge material can protrude from the containing groove during demolding, which is beneficial to the mechanical hand or manual taking and demolding. In another description, the depth of the first containing groove 12 and the second containing groove 22 is at least 3cm, which helps to demold. During demolding, the first mold 1 and the second mold 2 are separated, and since the mold opening is located on the side surface and the design of the pressing part 4 helps to reduce the difficulty of demolding, the demolding process can be completed by slightly extruding the sponge seat pad. And due to the existence of the pressing part 4, the hard edge generated by the mold opening will be concave to the inside of the sponge pad 9 itself, without the need for trimming, and the existence of the hard edge will not cause the abrasion of the fabric after the fabric is covered, greatly improving the production efficiency of the sponge pad 9.

[0057] In summary, the opening and closing mold pouring mold provided by the present application has the following technical effects:

[0058] 1. By designing the buckle of the mold on the side of the sponge cushion instead of the top or bottom surface, the hard edge formed on the key contact surface of the cushion is effectively avoided. This not only improves the appearance of the cushion, but also significantly reduces the wear and tear on the leather and other materials caused by the hard edge, thereby prolonging the service life of the product;

[0059] 2. The design of the side mold opening makes the demolding process more convenient. When the first mold 1 and the second mold 2 are separated, a part of the sponge cushion will naturally be exposed, without the need for forced removal by pressing or other methods. This not only simplifies the operation process and reduces labor intensity, but also facilitates the introduction of mechanical automatic demolding technology, thereby greatly improving production efficiency;

[0060] 3. The design of the side mold opening also helps to reduce waste generated by hard edge cutting and improve the utilization rate of sponge material. This not only helps to reduce production costs, but also conforms to the production concept of environmental protection and energy saving.

[0061] The technical means disclosed by the utility model scheme is not limited to the technical means disclosed by the above-mentioned embodiments, but also includes technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the scope of protection of the utility model.

Claims

1. A draw-on-draw injection mold characterized by, The first mold (1) is provided with a first abutting edge (11) on the edge thereof facing the second mold (2), and the second mold (2) is provided with a second abutting edge (21) on the edge thereof facing the first mold (1), the first abutting edge (11) and the second abutting edge (21) abutting to form a mold opening of a pouring cavity (3). The first abutting edge (11) is provided with a first pressing edge (13) on one side thereof facing the first accommodating groove (12), and the second abutting edge (21) is provided with a second pressing edge (23) on one side thereof facing the second accommodating groove (22), the first pressing edge (13) and the second pressing edge (23) abutting to form a pressing portion (4) extending into the pouring cavity (3).

2. A split mould casting mould according to claim 1, characterised in that The first pressing edge (13) includes a first face (131) abutting against the second pressing edge (23) and a second face (132) facing away from the second pressing edge (23), and the included angle between the first face (131) and the second face (132) is an acute angle.

3. A split mould casting mould according to claim 2, characterised in that The second pressing edge (23) includes a third face (231) abutting against the first pressing edge (13) and a fourth face (232) facing away from the first pressing edge (13), and the included angle between the third face (231) and the fourth face (232) is an acute angle. The cross section of the pressing portion (4) is a triangular structure protruding into the pouring cavity (3).

4. A split mold casting mold according to claim 2, wherein The included angle of the cross section of the pressing portion (4) facing the pouring cavity (3) is 90°.

5. A split mould casting mould according to claim 4, characterised in that The cross section of the pressing portion (4) is a circular arc structure protruding into the pouring cavity (3), or the cross section of the pressing portion (4) is a trapezoidal structure protruding into the pouring cavity (3).

6. A split-action injection mold in accordance with claim 2 wherein, The protruding distance of the pressing portion (4) into the pouring cavity (3) is not higher than 1 cm.

7. A split-action injection mold in accordance with claim 2 wherein, The distance of the pressing portion (4) from the bottom of the first accommodating groove (12) is not less than 3 cm, or the distance of the pressing portion (4) from the bottom of the second accommodating groove (22) is not less than 3 cm.

8. A clamp-on injection mold according to claim 5, wherein The first mold (1) is provided with an exhaust hole (5) communicating with the first accommodating groove (12), and / or the second mold (2) is provided with an exhaust hole (5) communicating with the second accommodating groove (22), and an exhaust valve (6) is arranged at each exhaust hole (5).

9. A split mould casting mould according to any one of claims 1 to 8, characterised in that, The first mold (1) and the second mold (2) are provided with a heating device (7) for heating the first accommodating groove (12) and the second accommodating groove (22).

10. A split mould casting mould according to any one of claims 1 to 8, characterised in that, ​

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