Straight ejection device and mold

Abstract

The utility model provides a straight ejection device and a mold. The straight ejection device is applied to molding of a product with a first inner cavity. The direct ejection device comprises a first mold core, a direct ejection body and a second mold core. The straight ejector body comprises a hook part. The second mold core comprises a first convex part, the first mold core covers the second mold core, the straight ejection body is embedded in the second mold core and can slide relative to the second mold core, the hook part and the first convex part are used for forming a first inner cavity, and the bottom thickness of the cross section of the first convex part is larger than that of the longitudinal section of the hook part. The mold core solves the problem that the bottom of the part, in a product inner cavity, of an existing mold core is large in yield fracture risk during product injection molding.

Description

Technical Field

[0001] The present application relates to the technical field of molds, and in particular to a straight-pushing device and a mold. Background Art

[0002] The mechanism used in the straight top mold design to form the internal hook of the product. The straight top can be used in conjunction with the mold core to injection mold the product. When forming a thin-walled product with an inner cavity, the straight top can cooperate with the mold core to form the inner cavity and thin wall of the thin-walled product.

[0003] From the cross section of the mold core or the longitudinal section of the straight top, the bottom thickness of the part of the straight top in the product cavity is greater than the bottom thickness of the part of the mold core in the product cavity (the bottom thickness of the part of the mold core in the product cavity is about 1.6mm), which makes the bottom thickness of the part of the mold core in the product cavity too small and its structural strength is weak. During product injection molding, when the pressure in the mold cavity is too high (for example, the mold cavity pressure is 150Mpa), the bottom of the part of the mold core in the product cavity will have a greater risk of yielding and fracture due to its too small thickness. Therefore, the bottom of the part of the existing mold core in the product cavity has a greater risk of yielding and fracture during product injection molding. Utility Model Content

[0004] The purpose of the present application is to provide a straight top device that reduces the risk of yield fracture of the bottom of the mold core in the inner cavity of the product during product injection molding. The device is applied to the molding of a product with a first inner cavity, and comprises a first mold core, a straight top body, and a second mold core. The straight top body comprises a hook. The second mold core comprises a first convex portion, the first mold core covers the second mold core, the straight top body is embedded in the second mold core and can slide relative to the second mold core, the hook and the first convex portion are used to form the first inner cavity, wherein the bottom thickness of the cross section of the first convex portion is greater than the bottom thickness of the longitudinal section of the hook.

[0005] Optionally, the first mold core includes a non-appearance surface molding portion, the non-appearance surface molding portion is used to form the non-appearance surface of the product, and the non-appearance surface molding portion faces the second mold core.

[0006] Optionally, the first mold core includes a mold core body and an insert, the insert is embedded in the mold core body, and the non-exterior surface forming portion is arranged on the insert.

[0007] Optionally, the sliding direction of the straight top body is substantially parallel to the length direction of the straight top body and the height direction of the insert.

[0008] Optionally, the sliding direction of the straight top body is a vertical direction.

[0009] Optionally, the product includes a second inner cavity, and the non-exterior surface molding portion includes a molding body, and the molding body is used to form the second inner cavity.

[0010] Optionally, the product includes a third inner cavity, the second inner cavity is connected to the third inner cavity, the non-exterior surface molding portion includes a second convex portion, the second convex portion is connected to the molding body, and the second convex portion is used to form the third inner cavity.

[0011] Optionally, a height direction of the hook portion, a height direction of the first convex portion, and a height direction of the second convex portion are substantially parallel.

[0012] Optionally, the non-exterior surface molding portion includes a gas-assisted drainage channel, and the gas-assisted drainage channel is arranged on the second convex portion and the molding body.

[0013] Optionally, the number of the gas-assisted drainage channels is two, and the two gas-assisted drainage channels are respectively arranged on both sides of the second convex portion.

[0014] Optionally, the molding body includes a gate and a shielding portion, wherein the shielding portion is arranged around the gate, and the shielding portion is located between the gas-assisted drainage channel and the gate.

[0015] Optionally, the shielding portion semi-surrounds the gate.

[0016] The present application also provides a mold, which includes the straight-top device.

[0017] Optionally, there are two sets of the straight-top devices.

[0018] The beneficial effect of the present application is that: by setting a first mold core, a straight top body and a second mold core. The straight top body includes a hook. The second mold core includes a first convex part, the first mold core covers the second mold core, the straight top body is embedded in the second mold core and can slide relative to the second mold core, the hook and the first convex part are used to form a first inner cavity, wherein the bottom thickness of the cross section of the first convex part is greater than the bottom thickness of the longitudinal section of the hook. Since the bottom thickness of the cross section of the first convex part is greater than the bottom thickness of the longitudinal section of the hook, the strength of the bottom of the first convex part is increased, so that the bottom of the first convex part of the second mold core is less likely to yield and break during product injection molding.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and implement it according to the contents of the specification, the present application is described in detail below with reference to the preferred embodiments of the present application and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an exploded view of the straight-up device (including the product) in the first embodiment of the present application;

[0021] Figure 2 This is a three-dimensional diagram of the product from one viewing angle in the first embodiment of the present application;

[0022] Figure 3 is a three-dimensional diagram of the straight top body in the first embodiment of the present application;

[0023] Figure 4 It is a cross-sectional view and a partial enlarged view (including the product) of the straight top device in the first embodiment of the present application;

[0024] Figure 5 is a three-dimensional diagram of the first mold core in the first embodiment of the present application;

[0025] Figure 6 is a rear view of the insert in the first embodiment of the present application;

[0026] Figure 7 This is a three-dimensional diagram of the product from another perspective in the first embodiment of the present application;

[0027] Figure 8 It is a three-dimensional diagram and a partial enlarged diagram of the insert in the first embodiment of the present application;

[0028] Fig. 9 is an exploded view of the mold in the second embodiment of the present application;

[0029] Fig.10 This is a schematic diagram of a robot taking away a product in the second embodiment of the present application (the robot is only partially shown);

[0030] Fig.11 This is a cross-sectional view of the product in the first embodiment of the present application.

[0031] Wherein, the reference numerals are:

[0032] 1 Straight top device

[0033] 10 First Mold

[0034] 100 mold body

[0035] 1000 Second through hole

[0036] 101 Inlay

[0037] 1010 Non-exterior surface molding department

[0038] 10100 molded body

[0039] 101001 Gate

[0040] 101002 Shielding

[0041] 10101 Second convex part

[0042] 10102 Gas-assisted drainage channel

[0043] 10103 Air Inlet

[0044] 1011 Insert body

[0045] 11 straight top body

[0046] 110 Hook

[0047] 12 Second Model

[0048] 120 First convex part

[0049] 121 First through hole

[0050] 2 Products

[0051] 20 First inner cavity

[0052] 21 Second inner cavity

[0053] 22 Third inner cavity

[0054] 23 Grooves

[0055] 24 The third convex part

[0056] 25 Thickening section

[0057] 26 Cavity

[0058] 27 The fourth convex part

[0059] 3. Mother template

[0060] 4 Public template

[0061] 5 Ejector pin

[0062] 6 Robot

[0063] d1 Cross-sectional bottom thickness of the first convex part

[0064] d2 The bottom thickness of the longitudinal section of the hook DETAILED DESCRIPTION

[0065] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0066] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments. In order to enable those skilled in the art to better understand the present application scheme, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in the field without making creative work should fall within the scope of protection of the present application.

[0067] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0068] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] For the convenience of explanation, a rectangular coordinate system O-XYZ is established in some drawings. The X-axis direction is parallel to the width direction of the first mold core 10 and the second mold core 12. The Y-axis direction is parallel to the length direction of the first mold core 10 and the second mold core 12. The Z-axis direction is parallel to the thickness direction of the first mold core 10 and the second mold core 12. The positive direction of the X-axis, the positive direction of the Y-axis, and the positive direction of the Z-axis remain the same in each drawing with a coordinate system.

[0070] First embodiment

[0071] Please also refer to Figures 1 to 4In this embodiment, a straight top device 1 is provided, which is used for molding a product 2 with a first inner cavity 20, and includes a first mold core 10, a straight top body 11, and a second mold core 12. The straight top body 11 includes a hook portion 110. The second mold core 12 includes a first convex portion 120, the first mold core 10 covers the second mold core 12, the straight top body 11 is embedded in the second mold core 12 and can slide relative to the second mold core 12, the hook portion 110 and the first convex portion 120 are used to form the first inner cavity 20, wherein the cross-sectional bottom thickness d1 of the first convex portion 120 is greater than the longitudinal cross-sectional bottom thickness d2 of the hook portion 110.

[0072] like Figure 1 As shown, the straight ejection device 1 can be applied to the injection molding of the product 2. Figure 2 As shown, the first inner cavity 20 can be located above the product 2, and it can include an opening facing parallel to the negative direction of the Z axis. The first mold core 10 can be located above the second mold core 12, and the first mold core 10 and the second mold core 12 can be movably connected (for example, the first mold core 10 and the second mold core 12 can be connected by a pin and can move relatively). The first protrusion 120 can be arranged at the center of the upper end of the second mold core 12. The product 2 can be waist-shaped and thin-walled shell-shaped. The shape of the first mold core 10 and the second mold core 12 can be roughly rectangular and the size of the two can be roughly the same.

[0073] Please also refer to Figure 1 and Figure 3 The hook portion 110 may be disposed at the upper end of the straight top body 11, and may include a depression in a direction parallel to the negative direction of the X-axis, the depression being used to form a barb on the product 2. For example, Figure 4 As shown, the straight top body 11 may include an upper and lower part, the depression is located in the upper part, and the depression may be formed by removing part of the material from the right surface of the upper part to the left. The lower part of the straight top body 11 may be embedded in the second mold core 12. For example, a first through hole 121 having a shape matching that of the lower part of the straight top body 11 may be provided in the center of the second mold core 12, and the straight top body 11 may slide in the first through hole 121 in a direction substantially parallel to the Z axis.

[0074] like Figure 1 As shown, optionally, the sliding direction of the straight top body 11 is roughly parallel to the length direction of the straight top body 11 and the height direction of the insert 101. The sliding direction of the straight top body 11 and the height direction of the insert 101 can be roughly parallel to the Z axis. The sliding direction of the straight top body 11 is a vertical direction. The sliding direction of the straight top body 11 is roughly parallel to the length direction of the straight top body 11 and the height direction of the insert 101, so when taking the product 2 out of the first mold core 10 and the second mold core 12, there is no need to adjust the angle of the first mold core 10 or the second mold core 12, making it more convenient to take out the product 2. Taking out the product 2 includes ejecting the product 2 from the first mold core 10 and the second mold core 12 and using a robot 6 (please refer to the robot 6) Fig. 9 ) There are two steps to take away product 2. For details, please refer to the subsequent content of the embodiment.

[0075] like Figure 4 As shown, the cross section of the first protrusion 120 and the longitudinal section of the hook 110 may be parallel to the XOZ plane. Assuming that the plane parallel to the XOY plane and passing through the bottom of the first protrusion 120 is plane S1, the portion of the straight top body 11 that is higher than plane S1 is the hook 110. The distance between the two intersection points of plane S1 on the cross section of the first protrusion 120 is the bottom thickness d1 of the cross section of the first protrusion 120. The distance between the two intersection points of plane S1 on the longitudinal section of the hook 110 is the bottom thickness d2 of the longitudinal section of the hook 110.

[0076] like Figure 4 As shown, in the direction parallel to the Y axis, the bottom thickness d1 of the cross section of the first convex portion 120 and the bottom thickness d2 of the longitudinal section of the hook portion 110 are both variable, but when the first convex portion 120 and the hook portion 110 are cut by the same plane parallel to the XOZ, the bottom thickness d1 of the cross section of the first convex portion 120 is always greater than the bottom thickness d2 of the longitudinal section of the hook portion 110. The cross section of the first convex portion 120 may be fan-shaped.

[0077] Please also refer to Figures 2 to 4 When the injection molding of the product 2 is completed, the main body 11 pushes the product 2 out of the second mold core 12, and the robot 6 (please refer to the robot 6) Fig. 9 ) After the product 2 is removed, the first inner cavity 20 is formed at the location of the hook portion 110 and the first convex portion 120. Since the bottom thickness d1 of the cross section of the first convex portion 120 is greater than the bottom thickness d2 of the longitudinal section of the hook portion 110, the strength of the bottom of the first convex portion 120 is increased, making the bottom of the first convex portion 120 of the second mold core 12 less likely to yield and break during injection molding of the product 2.

[0078] Please also refer to Figure 4 and Figure 5 Optionally, the first mold core 10 includes a non-appearance surface molding portion 1010, which is used to form the non-appearance surface of the product 2, and the non-appearance surface molding portion 1010 faces the second mold core 12. The non-appearance surface molding portion 1010 can be arranged at the bottom end of the first mold core 10 and integrally formed with the first mold core 10. The orientation of the non-appearance surface molding portion 1010 can be parallel to the negative direction of the Z axis, that is, the non-appearance surface molding portion 1010 can be arranged downward. The non-appearance surface of the product 2 is the surface that is not exposed after the product 2 is assembled, and its quality requirements (smoothness, roughness) are usually lower than the appearance surface of the product 2. When the injection molding of the product 2 is completed, after the non-appearance surface molding portion 1010 is removed, the position in contact with the surface of the non-appearance surface molding portion 1010 forms the non-appearance surface of the product 2.

[0079] Please also refer to Figure 1 and Figure 6 Optionally, the first mold core 10 includes a mold core body 100 and an insert 101, the insert 101 is embedded in the mold core body 100, and the non-appearance surface molding portion 1010 is provided in the insert 101. The insert 101 may include an insert body 1011, and the non-appearance surface molding portion 1010 may be provided at the lower end of the insert body 1011 and integrally formed with the insert body 1011. The mold core body 100 is provided with a second through hole 1000 whose shape is adapted to the insert 101. The insert 101 may be embedded in the second through hole 1000 at the center of the mold core body 100. For example, the insert body 1011 may be embedded in the second through hole 1000.

[0080] Please also refer to Figure 1 and Figure 6 The non-appearance surface forming part 1010 and the insert 101 can be integrally formed. The non-appearance surface forming part 1010 is arranged on the insert 101. When a non-appearance forming surface of a different shape needs to be formed, only the insert 101 needs to be replaced, and the entire first mold core 10 does not need to be replaced, thereby saving the cost of replacing the non-appearance surface forming part 1010.

[0081] Please also refer to Figure 6 and Figure 7 Optionally, the product 2 includes a second inner cavity 21, and the non-exterior surface molding portion 1010 includes a molding body 10100, and the molding body 10100 is used to form the second inner cavity 21. The second inner cavity 21 can be located above the product 2, and it can include an opening facing parallel to the positive direction of the Z axis. When the injection molding of the product 2 is completed, the first mold core 10 is removed (please refer to the first mold core 10). Figure 5 ), the second inner cavity 21 is formed at the location of the molding body 10100.

[0082] Please also refer to Figure 6 and Figure 7 Optionally, the product 2 includes a third inner cavity 22, the second inner cavity 21 and the third inner cavity 22 are connected, the non-exterior surface molding portion 1010 includes a second convex portion 10101, the second convex portion 10101 is connected to the molding body 10100, and the second convex portion 10101 is used to form the third inner cavity 22. The second convex portion 10101 can extend downward from the bottom end of the molding body 10100. The second convex portion 10101 is roughly trapezoidal and can be located at the center of the lower end of the molding body 10100.

[0083] Please also refer to Figure 6 and Figure 7The longitudinal section of the second convex portion 10101 may be parallel to the XOZ plane and be roughly triangular. The second convex portion 10101 may be integrally formed and connected to the molding body 10100. The third inner cavity 22 may be generated by extending downward from the bottom end of the second inner cavity 21. For example, Figure 7 As shown, the third inner cavity 22 can be formed by extending downward from the bottom end of the second inner cavity 21 in a direction parallel to the negative direction of the Z axis. Figure 5 ), the position where the second convex portion 10101 is located forms a third inner cavity 22. The first inner cavity 20 (the first inner cavity 20 is referred to as Figure 2 ) can be located below the second inner cavity 21 and the third inner cavity 22.

[0084] like Figure 6 As shown, the plane passing through the top of the non-appearance surface molding part 1010 and parallel to the plane XOY is plane S2, and the plane passing through the top of the second protrusion 10101 and parallel to the plane XOY is plane S3. Then the part of the insert 101 located above the plane S2 is the insert body 1011, and the part of the insert 101 located below the plane S2 is the non-appearance surface molding part 1010. The part of the non-appearance surface molding part 1010 located between the plane S2 and the plane S3 is the molding body 10100. The part of the non-appearance surface molding part 1010 located below the plane S3 is the second protrusion 10101.

[0085] like Figure 4 As shown, optionally, the height direction of the hook 110, the height direction of the first convex part 120, and the height direction of the second convex part 10101 are substantially parallel. The height direction of the hook 110, the height direction of the first convex part 120, and the height direction of the second convex part 10101 may be substantially parallel to the Z axis. The height direction of the hook 110, the height direction of the first convex part 120, and the height direction of the second convex part 10101 are substantially parallel, so that when the product 2 is demolded from the first convex part 120 and the second convex part 10101, there is no need to adjust the angle of the first convex part 120 or the second convex part 10101, making it more convenient to take out the product 2.

[0086] Please also refer to Figure 6 and Figure 8 Optionally, the non-appearance surface molding part 1010 includes a gas-assisted drainage channel 10102 and an air inlet 10103 , and the gas-assisted drainage channel 10102 is provided on the second convex part 10101 and the molding body 10100 . The gas-assisted drainage channel 10102 can be provided on the outer side of the bottom end of the non-appearance surface molding part 1010 .

[0087] Please also refer to Figure 6 and Figure 8, the direction of the gas-assisted drainage channel 10102 can be L-shaped. The cross-section of the gas-assisted drainage channel 10102 can be semicircular. The length direction of the gas-assisted drainage channel 10102 on the molded body 10100 is roughly parallel to the Y axis. The length direction of the gas-assisted drainage channel 10102 on the second convex portion 10101 can form an acute angle with the positive direction of the Z axis. The gas-assisted drainage channel 10102 can be formed by removing material from the second convex portion 10101 and the molded body 10100.

[0088] Gas-assisted molding refers to the injection of inert high-pressure gas (such as high-pressure nitrogen, hereinafter referred to as gas) when the plastic is filled into the cavity appropriately (for example, the plastic is filled to 75% to 99.9% of the cavity). The gas pushes the molten plastic to continue to fill the cavity, and the gas pressure maintenance process is replaced by the plastic pressure maintenance process. The cavity is the cavity used for injection molding to form product 2. The gas-assisted drainage channel 10102 is provided on the second convex portion 10101 and the molding body 10100, which can increase the wall thickness of product 2, slow down the cooling speed of the section corresponding to the gas-assisted drainage channel 10102 on product 2, and make it easier for the gas to flow in the section corresponding to the gas-assisted drainage channel 10102 on product 2 when assisting the molding of product 2.

[0089] like Figure 8 As shown, optionally, the number of gas-assisted drainage channels 10102 is two, and the two gas-assisted drainage channels 10102 are arranged on both sides of the second convex portion 10101. The portions of each gas-assisted drainage channel 10102 located on the second convex portion 10101 can be respectively arranged on the left and right sides of the second convex portion 10101 and are not connected to each other. The inner cavity of the third convex portion 24 is the third inner cavity 22.

[0090] Please also refer to Figure 6 and Figure 8 Optionally, the molding body 10100 includes a gate 101001 and a shielding portion 101002, the shielding portion 101002 is arranged around the gate 101001, and the shielding portion 101002 is located between the gas-assisted drainage channel 10102 and the gate 101001. The shielding portion 101002 can be located on one side of the second convex portion 10101. The shielding portion 101002 can protrude upward from the upper surface of the molding body 10100 and be integrally formed with the molding body 10100.

[0091] Please also refer to Figures 6 to 8After the injection molding of the product 2 is completed, the location of the shielding portion 101002 will form a groove 23 on the product 2. The gate 101001 refers to a section of the passage from the runner to the cavity during the injection molding of the product 2. The gate 101001 is arranged on the molding body 10100 of the non-appearance surface molding portion 1010, which can prevent the gate 101001 from affecting the appearance surface of the product 2 (for example, it can prevent the gate 101001 from leaving an imprint on the appearance surface of the product 2).

[0092] like Fig.11 As shown, the portion corresponding to the gas-assisted drainage channel 10102 on the product 2 is defined as the thickened section 25, and the cross section of the thickened section 25 is a quarter circle. The gas flows in the cavity 26, which can also be understood as the cavity 26 is formed by the gas flow. Fig.11 The shape and position of the cavity 26 are different depending on the shape of the product 2. The portion formed by the gate 101001 on the product 2 is the fourth convex portion 27.

[0093] During the molding of product 2, the gas (such as nitrogen) used for gas-assisted molding flows in the direction of the wall thickness (the wall thickness direction of product 2 is parallel to the Z axis). Due to the presence of the groove 23, the wall thickness of product 2 at the groove 23 can be reduced, and product 2 is easier to cool and solidify at the groove 23, so that the resistance of the gas in the area near the groove 23 will increase, making it difficult for the gas to pass, thereby preventing the gas from flowing to the fourth convex portion 27 formed by the gate 101001.

[0094] Since the thickened section 25 has not been completely cooled and is still in a molten state, the gas in the cavity 26 can continue to flow in the product 2 in a direction substantially parallel to the Y axis, thereby reducing the shrinkage mark on the thick wall of the product 2 including the thickened section 25. Fig.10 The section shown in the figure can be changed according to actual needs.

[0095] Please also refer to Figure 7 and Figure 8 Optionally, the shielding portion 101002 semi-surrounds the gate 101001. The direction of the shielding portion 101002 can be U-shaped, and its opening can be oriented in the negative direction parallel to the X-axis. The shielding portion 101002 semi-surrounds the gate 101001 so that the portion of the product 2 corresponding to the groove 23 can block the gas from entering the gate 101001 while avoiding the formation of an excessively large wound surface on the product 2 (the wound surface is the cross-section of the groove 23 formed by the shielding portion 101002 on the product 2). Because if the shielding portion 101002 fully surrounds (that is, the shielding portion 101002 surrounds) the gate 101001, its area will be larger, and the wound surface formed on the product 2 will also be larger accordingly.

[0096] Second embodiment

[0097] Please also refer to Figure 1 and Fig. 9 The present application also provides a mold, which includes the straight-top device 1 in the first embodiment. The number of the straight-top devices 1 is two sets. By using two sets of straight-top devices 1, two products 2 can be molded at the same time, and the molding efficiency is higher. Two first mold cores 10 can be embedded side by side in the female mold plate 3 of the mold, and two second mold cores 12 can be embedded side by side in the male mold plate 4 of the mold. The female mold plate 3 can be located above the male mold plate 4, and the female mold plate 3 and the male mold plate 4 can be movably connected (for example, the female mold plate 3 and the male mold plate 4 can be connected by a pin and can move relatively).

[0098] Please also refer to Figure 1 and Fig. 9 , the first mold core 10 can be fixed on the female mold plate 3, and the second mold core 12 can be fixed on the male mold plate 4. The steps of removing the product 2 from the mold are as follows:

[0099] 1) First, separate the female template 3 and the male template 4, and simultaneously use the ejector pins 5 to eject the product 2 from the female template 3 (i.e., from the first mold core 10). The product 2 ejected from the female template 3 is placed on the second mold core 12. The direction in which the ejector pins 5 eject the product 2 can be parallel to the negative direction of the Z axis. Each product 2 can be ejected by a plurality of ejector pins 5 acting simultaneously. Each ejector pin 5 is slidably connected to the corresponding first mold core 10. For example, each ejector pin 5 can be slidably connected to the insert 101 of the first mold core 10. The bottom of each ejector pin 5 can be a component of the non-appearance surface molding portion 1010.

[0100] 2) Then, the product 2 is ejected from the male mold plate 4 (ie, from the second mold core 12) by using the straight ejection body 11. The direction in which the straight ejection body 11 ejects the product 2 may be parallel to the positive direction of the Z axis.

[0101] 3) Please also refer to Figure 7 and Fig.10 , and then use the robot 6 to take the product 2 off the straight top body 11. The robot 6 may be provided with a contoured surface with the same shape as the back of the product 2 (the back of the product 2, i.e., the surface on the product 2 on the same side as the second inner cavity 21 and the third inner cavity 22) to avoid damaging the product 2. When the robot 6 takes the product 2, it may first move the product 2 along the direction of arrow A by a distance B (for example, the distance B may be 0.3 mm), and then directly take the product 2 out of the straight top body 11 upward (i.e., along arrow C).

[0102] The above is a detailed introduction to the straight-pushing device and the mold provided in the embodiment of the present application. For those skilled in the art, according to the idea of ​​the embodiment of the present application, there will be some changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as a limitation of the present application. All equivalent modifications or changes made according to the spirit and technical ideas of the present application should still be covered by the claims of the present application.

Claims

1. A straight top device, which is used for molding products with a first inner cavity, characterized in that: include: First Model Ren; A straight top body including a hook portion; and The second mold core includes a first convex portion, the first mold core covers the second mold core, the straight top body is embedded in the second mold core and can slide relative to the second mold core, the hook portion and the first convex portion are used to form the first inner cavity, wherein the bottom thickness of the cross section of the first convex portion is greater than the bottom thickness of the longitudinal section of the hook portion.

2. The straight-lift device according to claim 1, characterized in that: The first mold core includes a non-appearance surface molding portion, the non-appearance surface molding portion is used to form the non-appearance surface of the product, and the non-appearance surface molding portion faces the second mold core.

3. The straight-lift device according to claim 2, characterized in that: The first mold core comprises a mold core body and an insert, the insert is embedded in the mold core body, and the non-appearance surface forming portion is arranged on the insert.

4. The straight-lift device according to claim 3, characterized in that: The sliding direction of the straight top body is substantially parallel to the length direction of the straight top body and the height direction of the insert.

5. The straight jacking device according to claim 4, characterized in that: The sliding direction of the straight top body is a vertical direction.

6. The straight-lift device according to claim 3, characterized in that: The product includes a second inner cavity, and the non-exterior surface molding portion includes a molding body, and the molding body is used to form the second inner cavity.

7. The straight jacking device according to claim 6, characterized in that: The product includes a third inner cavity, the second inner cavity is connected to the third inner cavity, the non-exterior surface molding portion includes a second convex portion, the second convex portion is connected to the molding body, and the second convex portion is used to form the third inner cavity.

8. The straight jacking device according to claim 7, characterized in that: The height direction of the hook portion, the height direction of the first convex portion, and the height direction of the second convex portion are substantially parallel.

9. The straight jacking device according to claim 7, characterized in that: The non-exterior surface molding portion includes a gas-assisted drainage channel, and the gas-assisted drainage channel is arranged on the second convex portion and the molding body.

10. The straight jacking device according to claim 9, characterized in that: The number of the gas-assisted drainage channels is two, and the two gas-assisted drainage channels are respectively arranged on both sides of the second convex portion.

11. The straight jacking device according to claim 9, characterized in that: The molding body comprises a gate and a shielding portion, wherein the shielding portion is arranged around the gate and is located between the gas-assisted drainage channel and the gate.

12. The straight jacking device according to claim 11, characterized in that: The shielding portion semi-surrounds the gate.

13. A mold, characterized in that: It comprises a straight top device according to any one of claims 1-12.

14. The mold according to claim 13, characterized in that The number of the straight-top devices is two.

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