Injection mold

Abstract

This application discloses an injection mold, including an upper mold mechanism and a lower mold mechanism that fit together. The lower mold mechanism includes a mold core, a carrier component, and a linkage assembly. The mold core is disposed opposite to the upper mold mechanism, and a receiving cavity for receiving material is opened on the side of the mold core facing the upper mold mechanism. The carrier component is slidably disposed in the receiving cavity and carries the material in the receiving cavity. The linkage assembly is connected to the mold core. During the process of the upper mold mechanism closing the lower mold mechanism, the linkage assembly drives the carrier component to move under the drive of the upper mold mechanism to increase the volume of the receiving cavity, thereby causing the nozzle of the upper mold mechanism to sequentially spray the increased volume of rubber material to form a thicker product. At the same time, the shrinkage or depression of the product is compensated by re-injecting rubber material. Compared with the one-time molding method, this helps to reduce the degree of shrinkage and depression of the product.

Description

Technical Field

[0001] This application relates to the field of injection molding equipment technology, and more particularly to an injection mold. Background Technology

[0002] In the production of plastic products, injection molding is typically used to allow the plastic material to cool and form the product within the mold. However, existing injection molds can cause the plastic material to shrink or cave in during the injection molding process of some thicker products, leading to deformation of thicker products. Utility Model Content

[0003] In view of this, this application provides an injection mold to solve the problem of product deformation when the injection mold is used to injection mold products with large thickness.

[0004] This application provides an injection mold, including an upper mold mechanism and a lower mold mechanism that are appropriately matched. The lower mold mechanism includes a mold core, a carrier component, and a linkage assembly. The mold core is disposed opposite to the upper mold mechanism, and a receiving cavity is formed on the side of the mold core facing the upper mold mechanism for receiving material. The carrier component is slidably disposed in the receiving cavity for carrying the material in the receiving cavity. The linkage assembly is connected to the side of the mold core opposite to the upper mold mechanism, and the linkage assembly is driven by the upper mold mechanism during the mold opening process of the upper and lower mold mechanisms, thereby causing the carrier component to move away from the upper mold mechanism within the receiving cavity.

[0005] In the above embodiments, during the process of the upper mold mechanism closing the lower mold mechanism, the linkage component drives the carrier component to move under the drive of the upper mold mechanism, so as to increase the volume of the receiving cavity. This allows the nozzle of the upper mold mechanism to spray the increased volume of rubber material in sequence to form a thicker product. At the same time, the shrinkage or depression is compensated by injecting rubber material again. Compared with the one-time molding method, this helps to reduce the degree of shrinkage and depression of the product.

[0006] In some embodiments, the linkage component includes a first movable block slidably connected to the mold core. The first movable block includes a first end and a second end disposed opposite to each other along the X-axis direction. The second end is closer to the carrier relative to the first end and has a first inclined surface that slides in contact with the carrier. The X-axis is perpendicular to the direction in which the upper mold mechanism and the mold core are disposed opposite to each other. The first end is configured to move closer to the carrier under the action of the upper mold mechanism and synchronously drive the second end to move. The second end applies a force to the carrier in the direction from the upper mold mechanism to the mold core through the first inclined surface and pushes the carrier to move relative to the mold core. The first inclined surface of the first movable block contacts the carrier to apply a force away from the upper mold mechanism to the carrier, thereby achieving the effect of driving the carrier to move and increasing the volume of the receiving cavity.

[0007] In some embodiments, the linkage assembly further includes a ratchet assembly and a second movable block. The second movable block includes a third end and a fourth end disposed opposite to each other. The third end contacts the upper mold mechanism, and the fourth end is slidably connected to the mold core. The second movable block is configured to reciprocate along the direction in which the mold core and the upper mold mechanism are disposed opposite to each other under the drive of the upper mold mechanism. The ratchet assembly is rotatably connected to the mold core. The ratchet assembly can engage with the fourth end of the second movable block and the first end of the first movable block, respectively. The ratchet assembly is configured to rotate under the drive of the second movable block when the second movable block moves relative to the mold core, and drive the first movable block to move along the X-axis direction, so that the first movable block drives the carrier to move. The upper mold mechanism is also configured to keep the second movable block stationary when the first movable block applies a reverse rotational force to the ratchet assembly, so that the second movable block inhibits the rotation of the ratchet assembly and limits the position of the first movable block in the X-axis direction. The first movable block is connected to the upper mold mechanism so that the upper mold mechanism drives the first movable block to move. The first movable block drives the second movable block to move through the ratchet assembly, thereby realizing that the linkage assembly drives the carrier to move under the action of the upper mold mechanism.

[0008] In some embodiments, the first movable block and the second movable block are distributed along the Y-axis direction, and the Y-axis direction, the X-axis direction, and the direction in which the upper mold mechanism and the mold core are relatively arranged are all perpendicular to each other. By distributing the first movable block and the second movable block along the Y-axis direction, the risk of interference between the first movable block and the second movable block during movement is reduced.

[0009] In some embodiments, the ratchet assembly includes a shaft core, a first gear, a second gear, a bushing, and a pawl. The shaft core is rotatably connected to the mold core. The first gear and the bushing are coaxially mounted on the shaft core and fixedly connected to it. The first gear and the bushing are distributed along the Y-axis, and the first gear can mesh with a second movable block. The second gear is rotatably mounted on the bushing and rotatably connected to the shaft core. The outer circumference of the second gear meshes with the first movable block, and the second gear has internal teeth on the side facing the bushing. The pawl is rotatably connected to the bushing and is configured to mesh with the internal teeth of the second gear. The bushing has a receiving groove, and a portion of the pawl is movably disposed within the receiving groove. The bushing also includes a limiting wall located in the receiving groove. The limiting wall is used to contact the pawl and limit the pawl when the bushing rotates, so that the pawl drives the second gear to rotate. By the pawl driving the second gear to rotate under the limiting action of the limiting wall and the driving action of the bushing, and the second gear driving the first movable block to move, the ratchet assembly achieves the effect of unidirectionally driving the first movable block.

[0010] In some embodiments, there are two first movable blocks, which are disposed opposite each other on both sides of the carrier along the X-axis, and the first inclined surface of each first movable block contacts the carrier. By having the two first movable blocks act simultaneously on both sides of the carrier, the risk of carrier offset or tilting is reduced, thereby improving the stability of the carrier's movement relative to the mold core.

[0011] In some embodiments, the lower mold mechanism further includes an ejector assembly, which includes a top plate and at least one ejector pin. The top plate is located on the side of the carrier member facing the mold core from the upper mold mechanism, and all ejector pins are fixedly connected to the side of the top plate facing the carrier member. The top plate is configured to be driven by an external force to move the ejector pins along the direction from the mold core towards the upper mold mechanism, and to cause the ejector pins to act on the portion of the carrier member away from the first movable block in the X-axis direction. The ejector pins drive the carrier member to move along the direction from the mold core towards the upper mold mechanism, so that the carrier member ejects the product-forming material from the receiving cavity and / or causes the carrier member to apply a force along the X-axis direction to the first movable block, and pushes the first movable block to move and reset. By pushing the carrier member to move through the ejector pins, and causing the carrier member to push the first movable block to move, the function of driving the carrier member and the first movable block to move and reset is achieved.

[0012] In some embodiments, the ejector assembly further includes a compression spring for applying a spring force to the ejector plate in the direction from the upper mold mechanism toward the mold core, and for pushing the ejector plate to move and reset. Pushing the ejector plate to move and reset via the compression spring, thereby causing the ejector plate to move away from the carrier and thus resetting the ejector pin, helps improve the automation capabilities of the injection mold.

[0013] In some embodiments, the end of the carrier member away from the upper mold mechanism is provided with a receiving space for accommodating a portion of the first movable member, and the first inclined surface of the first movable member contacts the side wall of the receiving space. Accommodating the first movable member by the receiving space helps to reduce the distance between the carrier member and the first movable member, making the structure of the injection mold more compact.

[0014] In some embodiments, a sealing layer is provided between the carrier and the sidewall of the receiving cavity, the sealing layer serving to seal the space between the carrier and the mold core. The upper mold mechanism includes a nozzle for injecting adhesive into the receiving cavity. When the nozzle injects adhesive into the receiving space, the sealing layer seals the space between the carrier and the mold core, thereby reducing the risk of adhesive leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a mold according to an embodiment of this application.

[0016] Figure 2 for Figure 1 An exploded view of the mold.

[0017] Figure 3 for Figure 2 A schematic diagram of part of the structure.

[0018] Figure 4 for Figure 2 A schematic diagram of the first active block in the diagram.

[0019] Figure 5 for Figure 1 An exploded view of the first movable block and another support component of the mold.

[0020] Figure 6 for Figure 3 An exploded view of the ratchet assembly in the diagram.

[0021] Figure 7 for Figure 6 A schematic diagram showing the working state of the ratchet pawl driving the second gear.

[0022] Explanation of main component symbols

[0023] 10. Injection mold; 11. Upper mold mechanism; 111. Nozzle; 12. Lower mold mechanism; 121. Mold core; 122. Receiving cavity; 13. Supporting component; 132. Receiving space; 133. Second inclined surface; 134. Extension; 14. Linkage assembly; 141. First movable block; 1411. First end; 1412. Second end; 1413. First inclined surface; 1414. Rack; 142. Second movable block; 1421. Third end; 1422. Fourth end; 143. Ratchet assembly; 1431. Shaft core; 1432. First gear; 1433. Bushing; 14331. Receiving groove; 14332. Limiting wall; 1434. Pawl; 1435. Second gear; 1436. Internal gear; 15. Push assembly; 151. Top plate; 152. Push pin; 153. Compression spring. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0025] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "above," "below," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0026] The terms “first”, “second”, etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implying the quantity, specific order, or primary and secondary relationship of the indicated technical features.

[0027] 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 this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0028] An injection mold includes an upper mold mechanism and a lower mold mechanism that are fitted together. The lower mold mechanism includes a mold core, a carrier component, and a linkage assembly. The mold core is disposed opposite to the upper mold mechanism, and a receiving cavity is formed on the side of the mold core facing the upper mold mechanism for receiving material. The carrier component is slidably disposed in the receiving cavity for carrying the material in the receiving cavity. The linkage assembly is connected to the side of the mold core opposite to the upper mold mechanism, and the linkage assembly is driven by the upper mold mechanism during the mold opening process of the upper and lower mold mechanisms, thereby causing the carrier component to move away from the upper mold mechanism within the receiving cavity.

[0029] In the above embodiments, during the process of the upper mold mechanism closing the lower mold mechanism, the linkage component drives the carrier component to move under the drive of the upper mold mechanism, so as to increase the volume of the receiving cavity. This allows the nozzle of the upper mold mechanism to spray the increased volume of rubber material in sequence to form a thicker product. At the same time, the shrinkage or depression is compensated by injecting rubber material again. Compared with the one-time molding method, this helps to reduce the degree of shrinkage and depression of the product.

[0030] Some embodiments of this application will now be described with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] In some embodiments, please refer to Figure 1 and Figure 2 The injection mold 10 includes an upper mold mechanism 11 and a lower mold mechanism 12 that are appropriately matched. The lower mold mechanism 12 includes a mold core 121, which is disposed opposite to the upper mold mechanism 11. A receiving cavity 122 is formed on the side of the mold core 121 facing the upper mold mechanism 11. The receiving cavity 122 is used to receive material (not shown). The upper mold mechanism 11 includes a nozzle 111. When the upper mold mechanism 11 faces the lower mold mechanism 12 to complete mold closing, the nozzle 111 injects plastic material (not shown) into the receiving cavity 122 to cool and solidify the plastic material, thereby completing the product processing.

[0032] In some embodiments, the direction of the lower mold mechanism 12 toward the upper mold mechanism 11 is defined as the positive direction of the Z-axis.

[0033] In some embodiments, the positive direction of the Z-axis is the upward direction of gravity.

[0034] In some embodiments, please refer to Figure 1 and Figure 2 The lower mold mechanism 12 also includes a support member 13 and a linkage assembly 14. The support member 13 is slidably disposed in the receiving cavity 122 and is used to support the material in the receiving cavity 122. The linkage assembly 14 is connected to the side of the mold core 121 opposite to the upper mold mechanism 11. During the mold opening process between the upper mold mechanism 11 and the lower mold mechanism 12, the linkage assembly 14 is driven by the upper mold mechanism 11 and drives the support member 13 to move in the receiving cavity 122 in the direction opposite to the upper mold mechanism 11, so as to increase the space in the receiving cavity 122 for accommodating the material.

[0035] During operation, as the upper mold mechanism 11 closes the lower mold mechanism 12, the linkage component 14 drives the carrier component 13 to move under the drive of the upper mold mechanism 11, thereby increasing the volume of the receiving cavity 122. After the upper mold mechanism 11 and the lower mold mechanism 12 complete the mold closing, the nozzle 111 sprays the adhesive into the receiving cavity 122. The adhesive fills the increased volume and connects with the adhesive originally located in the receiving cavity 122.

[0036] After all the rubber material in the cavity 122 has cooled to a certain temperature, the upper mold mechanism 11 moves upward away from the lower mold mechanism 12 to form an open mold state. Then, the upper mold mechanism 11 moves closer to the lower mold mechanism 12 to complete the mold closing. The nozzle 111 sprays rubber material into the cavity 122, filling the increased volume and connecting with the rubber material originally located in the cavity 122.

[0037] In this cycle, the adhesive is repeatedly sprayed into the receiving cavity 122 through the nozzle 111 to form a thicker product. Each time the adhesive is injected, it forms a part of the product while compensating for shrinkage or depressions. Compared with one-time molding, this helps to reduce the degree of shrinkage and depressions in the product, thereby avoiding the problem of deformation when the thicker product is finished.

[0038] It is understandable that the volume of the receiving cavity 122 can be adjusted by simply performing multiple mold closing operations of the upper mold mechanism 11 and the lower mold mechanism 12, without the need to adjust the structure of the external injection molding machine. Thus, by adjusting the number of mold closing operations of the upper mold mechanism 11 and the lower mold mechanism 12 according to the product thickness, the effect of producing products of different thicknesses can be achieved.

[0039] In some embodiments, please refer to Figure 2 The cavity 122 extends through the mold core 121 along the Z-axis. The support member 13 is always located inside the cavity 122, or a portion of the support member 13 is located inside the cavity 122. The cavity 122 is provided through to facilitate the installation of the support member 13 and the adjustment of the initial position of the support member 13 within the cavity 122.

[0040] In other embodiments, the receiving cavity 122 is located only at the top of the mold core 121, that is, the receiving cavity 122 has a bottom wall.

[0041] In some embodiments, please refer to Figure 2 and Figure 3 The linkage component 14 includes a first movable block 141, which extends along the X-axis and includes a first end 1411 and a second end 1412 disposed opposite to each other. The first movable block 141 is slidably connected to the mold core 121. The second end 1412 is closer to the support member 13 relative to the first end 1411. The second end 1412 is provided with a first inclined surface 1413 that slides in contact with the support member 13 (see reference). Figures 3 to 5 ( ), where the X-axis is perpendicular to the Z-axis. During the process of the upper mold mechanism 11 moving closer to the lower mold mechanism 12 to perform mold closing, the first end 1411 moves closer to the support member 13 under the action of the upper mold mechanism 11, and simultaneously drives the second end 1412 to move. The second end 1412 applies a downward force to the support member 13 through the first inclined surface 1413 to push the support member 13 to move downward relative to the mold core 121, thereby achieving the effect of driving the support member 13 to move and increasing the volume of the receiving cavity 122.

[0042] In some embodiments, please refer to Figure 3 or Figure 5 The support member 13 is provided with a second inclined surface 133 corresponding to the first inclined surface 1413. The second inclined surface 133 is located below the first inclined surface 1413 so that when the first inclined surface 1413 contacts the second inclined surface 133, a downward force can be applied to the second inclined surface 133.

[0043] In some embodiments, please refer to Figure 4 The support member 13 has a receiving space 132 on the side facing the first movable block 141, and the second inclined surface 133 is the upward sidewall of the receiving space 132. The receiving space 132 is used to receive the second end 1412 of the first movable block 141, so that the first movable block 141 is in contact with the support member 13 inside the support member 13, rather than the first movable block 141 being in contact with the support member 13 outside the support member 13. This helps to reduce the space occupied by the first movable block 141 and the support member 13, thereby improving the space utilization rate and making the structure of the lower mold mechanism 12 more compact.

[0044] In other embodiments, please refer to Figure 5 The support member 13 has an extension 134 on the side facing the first movable block 141. The second inclined surface 133 is located on the top surface of the extension 134. The second end 1412 and the second inclined surface 133 partially overlap with the extension 134 in the Z-axis direction, so that the first inclined surface 1413 and the second inclined surface 133 are arranged opposite to each other and in contact in the vertical direction.

[0045] In some embodiments, please refer to Figure 2 and Figure 3 The linkage assembly 14 also includes a ratchet assembly 143 and a second movable block 142. The second movable block 142 extends along the Z-axis and includes a third end 1421 and a fourth end 1422. The third end 1421 contacts the upper mold mechanism 11, and the fourth end 1422 is slidably connected to the mold core 121. The ratchet assembly 143 is rotatably connected to the mold core 121, and the ratchet assembly 143 is capable of engaging with the fourth end 1422 of the second movable block 142 and the first end 1411 of the first movable block 141, respectively.

[0046] During operation, the second movable block 142 reciprocates along the Z-axis direction under the drive of the upper mold mechanism 11.

[0047] As the upper mold mechanism 11 moves closer to the lower mold mechanism 12 to form a closed mold, the upper mold mechanism 11 drives the second movable block 142 to move downward. Part of the second movable block 142 is located inside the lower mold mechanism 12 and slides relative to the lower mold mechanism 12. The ratchet assembly 143 rotates under the drive of the second movable block 142, and the rotation direction of the ratchet assembly 143 is defined as the first direction. During the rotation of the ratchet assembly 143 in the first direction, the ratchet assembly 143 drives the first movable block 141 to move in one direction, so that the first movable block 141 moves closer to the support member 13 along the X-axis direction. Under the action of the first movable block 141, the support member 13 moves downward relative to the mold core 121.

[0048] When the carrier 13 moves under a downward force, it pushes the first movable block 141 away from the carrier 13 along the X-axis. The first movable block 141 then drives the ratchet assembly 143 to rotate in the second direction (opposite to the second direction). The ratchet assembly 143 acts in the opposite direction on the second movable block 142, causing it to slide upward relative to the mold core 121. Therefore, when the nozzle 111 injects the resin into the receiving cavity 122, the pressure inside the receiving cavity 122 increases, and the resin exerts a downward force on the carrier 13, driving it to move downward. It is understandable that when the upper mold mechanism 11 remains stationary relative to the lower mold mechanism 12, the second movable block 142 remains stationary under the drive of the upper mold mechanism 11. This suppresses the rotation of the ratchet assembly 143 and limits the position of the first movable block 141 in the X-axis direction, so that the carrier 13 remains stationary under the action of the first movable block 141. This helps to overcome the tendency of the carrier 13 to move downward due to pressure or other forces, and helps to maintain the stability of the volume size in the receiving cavity 122.

[0049] In some embodiments, the first movable block 141 and the second movable block 142 are distributed along the Y-axis direction, so that the first movable block 141 and the second movable block 142 are staggered, thereby avoiding the risk of interference between the first movable block 141 and the second movable block 142 when the first movable block 141 moves along the X-axis direction and the second movable block 142 moves along the Z-axis direction. The Y-axis, X-axis, and Z-axis are all perpendicular to each other.

[0050] In some embodiments, please refer to Figure 3 and Figure 6 The ratchet assembly 143 includes a shaft core 1431, a first gear 1432, a second gear 1435, a bushing 1433, and a pawl 1434. The shaft core 1431 is rotatably connected to the mold core 121. The first gear 1432 and the bushing 1433 are respectively disposed on the shaft core 1431 along the bushing 1433. Both the first gear 1432 and the bushing 1433 are fixedly connected to the shaft core 1431. The first gear 1432 and the bushing 1433 are distributed along the Y-axis direction, and the first gear 1432 can mesh with the second movable block 142. The second gear 1435 is rotatably sleeved on the bushing 1433 and rotatably disposed relative to the shaft core 1431. The teeth on the outer circumference of the second gear 1435 mesh with the first movable block 141, and the second gear 1435 has internal teeth 1436 on the side facing the bushing 1433. (See also...) Figure 7 The bushing 1433 is provided with a receiving groove 14331. The bushing 1433 also includes a limiting wall 14332, which is located in the receiving groove 14331. A pawl 1434 is disposed between the bushing 1433 and the second gear 1435. A portion of the pawl 1434 is located inside the receiving groove 14331 and is rotatably connected to the bushing 1433. Another portion of the pawl 1434 extends outside the receiving groove 14331 and meshes with the internal teeth 1436 of the second gear 1435. The pawl 1434 is located on one side of the limiting wall 14332 along the first direction.

[0051] As the upper mold mechanism 11 moves closer to the lower mold mechanism 12, the second movable block 142 descends and moves to a specified distance, engaging with the first gear 1432. The first gear 1432 drives the shaft core 1431 to rotate in the first direction. The shaft core 1431 synchronously drives the bushing 1433 to rotate, and the bushing 1433 drives the pawl 1434 to rotate. At the same time, the limiting wall 14332 contacts the pawl 1434 and limits the pawl 1434 to suppress the rotation of the pawl 1434 relative to the bushing 1433, so that the pawl 1434 can drive the second gear 1435 to rotate, and the second gear 1435 drives the first movable block 141 to move.

[0052] When the upper mold mechanism 11 drives the second movable block 142 to move upward, the first gear 1432 drives the shaft core 1431 to rotate in the second direction. The shaft core 1431 synchronously drives the bushing 1433 to rotate. The bushing 1433 drives the pawl 1434 to rotate relative to it. Under the action of the internal tooth 1436, the pawl 1434 rotates relative to the bushing 1433 and moves away from the limiting wall 14332 and the internal tooth 1436 respectively, so that the pawl 1434 rotates freely (i.e., the pawl 1434 does no work on the second gear 1435), thereby achieving the effect of the ratchet assembly 143 driving the first movable block 141 to move in one direction.

[0053] At this time, the position of the first movable block 141 remains unchanged. When the upper mold mechanism 11 drives the second movable block 142 to move downward again, the pawl 1434 drives the second gear 1435 to rotate in one direction. The second gear 1435 drives the first movable block 141 to move. The first movable block 141 drives the carrier 13 to move downward, thereby achieving the effect that the volume in the receiving cavity 122 increases each time the mold is closed.

[0054] In some embodiments, please refer to Figure 5 The first movable block 141 has two racks 1414 spaced apart along the Y-axis at its first end 1411, and the second movable block 142 is located between the two racks 1414. There are two bushings 1433, pawls 1434, and second gears 1435. The two bushings 1433 are positioned on both sides of the first gear 1432 along the Y-axis, and one second gear 1435 is fitted onto the outside of one bushing 1433. Each second gear 1435 meshes with one rack 1414. The bushings 1433 on both sides of the first gear 1432 drive the second gear 1435 to rotate, so that when the second movable block 142 moves downward, it simultaneously acts on both racks 1414 via the ratchet assembly 143. Compared to acting on only one rack 1414, this helps improve the uniformity and stability of the force between the second movable block 142 and the first movable block 141.

[0055] In some embodiments, there are two first movable blocks 141, which are arranged opposite to each other on both sides of the support member 13 along the X-axis. The first inclined surfaces 1413 of the two first movable blocks 141 act simultaneously on both sides of the support member 13 to reduce the risk of the support member 13 shifting or tilting, thereby improving the stability of the movement of the support member 13 relative to the mold core 121.

[0056] It is understandable that the number of the second movable block 142 and the ratchet assembly 143 are equal to the number of the first movable block 141, so that one second movable block 142 drives one first movable block 141 to move through one ratchet assembly 143.

[0057] Similarly, when there are two first movable blocks 141, the carrier 13 is provided with two receiving spaces 132 to respectively receive the first movable blocks 141.

[0058] In some embodiments, please refer to Figure 1 and Figure 3 The lower mold mechanism 12 also includes a pusher assembly 15, which includes a top plate 151 and at least one pusher pin 152. The top plate 151 is located below the support member 13, and all the pushers pins 152 are located on the top surface of the top plate 151 and extend toward the support member 13. After the product is formed, the top plate 151 moves upward under external force and simultaneously drives the pushers pins 152 to move. The pushers pins 152 move closer to the support member 13 and act on the part of the support member 13 away from the first movable block 141, so as to push the support member 13 to move upward and reset, and cause the support member 13 to push the product out of the receiving cavity 122. At the same time, the second inclined surface 133 of the support member 13 acts upward on the first inclined surface 1413 and applies a force along the X-axis to the first inclined surface 1413, thereby causing the first movable block 141 to move and reset, so as to realize the functions of automatic product unloading and automatic reset of the support member 13 and the first movable block 141.

[0059] Understandably, before the top pusher 152 pushes the carrier 13 upward and the first movable block 141 resets, the upper mold mechanism 11 drives the second movable block 142 upward, so that the upper mold mechanism 11 and the lower mold mechanism 12 are in the mold-opening state and the second movable block 142 is separated from the ratchet assembly 143, thereby facilitating the ejection of the product from the mold core 121 and relieving the force of the second movable block 142 suppressing the first movable block 141 from moving away from the carrier 13 to reset through the ratchet assembly 143.

[0060] In some embodiments, when there are two first movable blocks 141, the top pusher 152 acts on the middle part of the support member 13 along the X-axis direction to reduce the risk of the support member 13 tilting due to uneven force.

[0061] Furthermore, there are multiple top pushers 152, all of which are spaced apart along the Y-axis direction to act uniformly on the carrier 13 in the Y-axis direction.

[0062] In some embodiments, when the receiving cavity 122 does not penetrate through the mold core 121, the bottom of the mold core 121 is provided with a through hole (not shown) communicating with the receiving cavity 122, and the top pusher 152 passes through the support member 13 that can act within the receiving cavity 122 through the through hole.

[0063] In some embodiments, please refer to Figure 2The jacking assembly 15 also includes a compression spring 153, one end of which contacts the top surface of the top plate 151. When the top plate 151 is subjected to an external force that causes the push pin 152 to move upward, the top plate 151 compresses the compression spring 153. When the external force applied to the top plate 151 is removed, the compression spring 153 applies a downward force to the top plate 151, causing the top plate 151 to move the push pin 152 back to its original position, thereby improving the automation function of the jacking assembly 15.

[0064] It is understandable that the other end of the compression spring 153 contacts the bottom of the mold core 121 or other parts of the lower mold mechanism 12, so as to achieve the effect of compressing the compression spring 153 when the top plate 151 moves.

[0065] In some embodiments, the surface of the carrier 13 facing the sidewall of the receiving cavity 122 is provided with a sealing layer (not shown) to seal the space between the carrier 13 and the mold core 121, thereby reducing the risk of material leakage.

[0066] In other embodiments, the sealing layer is disposed on the inner sidewall of the receiving cavity 122.

[0067] In other embodiments, the sealing layer is an annular member located between the carrier 13 and the mold core 121.

[0068] In some embodiments, the sealing layer is made of elastic and high-temperature resistant materials such as rubber.

[0069] In some embodiments, the carrier 13 is interference-fitted with the mold core 121 through a sealing layer to increase the friction between the carrier 13 and the mold core 121, thereby reducing the risk of the carrier 13 moving relative to the mold core 121 under the action of gravity or pressure in the receiving cavity 122, and helping to improve the positional stability of the carrier 13.

[0070] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the substantive scope of this application fall within the scope of this application.

Claims

1. An injection mold comprising an open-close matched upper mold mechanism and a lower mold mechanism, characterized by, The lower mold mechanism includes: The mold core is disposed opposite to the upper mold mechanism, and a receiving cavity is opened on the side of the mold core facing the upper mold mechanism. The receiving cavity is used to receive materials. A carrier is slidably disposed in the receiving cavity, the carrier being used to carry the material in the receiving cavity; A linkage component is connected to the side of the mold core away from the upper mold mechanism. The linkage component is driven by the upper mold mechanism during the mold opening process between the upper mold mechanism and the lower mold mechanism, and drives the carrier to move away from the upper mold mechanism in the receiving cavity.

2. The injection mold of claim 1, wherein The linkage component includes a first movable block, which is slidably connected to the mold core. The first movable block includes a first end and a second end that are arranged opposite to each other along the X-axis direction. The second end is close to the support member relative to the first end. The second end is provided with a first inclined surface that slides in contact with the support member. The X-axis direction is perpendicular to the direction in which the upper mold mechanism and the mold core are arranged opposite to each other. The first end is configured to move closer to the support member under the action of the upper mold mechanism, and simultaneously drive the second end to move. The second end applies a force to the support member in the direction from the upper mold mechanism to the mold core through the first inclined surface, and pushes the support member to move relative to the mold core.

3. The injection mold of claim 2, wherein, The linkage component further includes a ratchet assembly and a second movable block. The second movable block includes a third end and a fourth end that are arranged opposite to each other. The third end contacts the upper mold mechanism, and the fourth end can be slidably connected to the mold core. The second movable block is configured to reciprocate along the direction in which the mold core and the upper mold mechanism are arranged opposite to each other under the drive of the upper mold mechanism. The ratchet assembly is rotatably connected to the mold core. The ratchet assembly can engage with the fourth end of the second movable block and the first end of the first movable block, respectively. The ratchet assembly is configured to rotate under the drive of the second movable block when the second movable block moves relative to the mold core, and to drive the first movable block to move in one direction along the X-axis, so that the first movable block drives the carrier to move.

4. The injection mold of claim 3, wherein The first movable block and the second movable block are distributed along the Y-axis direction, and the Y-axis direction, the X-axis direction, and the directions in which the upper mold mechanism and the mold core are arranged relative to each other are perpendicular to each other.

5. The injection mold of claim 4, wherein, The ratchet assembly includes a shaft core, a first gear, a second gear, a bushing, and a pawl. The shaft core is rotatably connected to the mold core. The first gear and the bushing are coaxially sleeved on the shaft core. Both the first gear and the bushing are fixedly connected to the shaft core. The first gear and the bushing are distributed along the Y-axis direction. The first gear can mesh with the second movable block. The second gear is rotatably sleeved on the bushing and rotatably connected to the shaft core. The outer circumference of the second gear meshes with the first movable block. The second gear has internal teeth on the side facing the bushing. The pawl is rotatably connected to the bushing, and the pawl is configured to mesh with the internal teeth of the second gear; The bushing is provided with a receiving groove, and a portion of the pawl is movably disposed within the receiving groove. The bushing also includes a limiting wall located in the receiving groove. The limiting part is used to contact the pawl and limit the pawl when the bushing rotates, so that the pawl drives the second gear to rotate.

6. The injection mold of claim 2, wherein, There are two first movable blocks, which are arranged opposite each other on both sides of the support member along the X-axis direction, and the first inclined surface of each first movable block is in contact with the support member.

7. The injection mold of claim 2, wherein The lower mold mechanism further includes a pusher assembly, which includes a top plate and at least one pusher pin. The top plate is located on the side of the support member facing the mold core from the upper mold mechanism. All the pushers pins are fixedly connected to the side of the top plate facing the support member. The top plate is configured to be driven by an external force to move the pusher along the direction from the mold core toward the upper mold mechanism, and to cause the pusher to act on the portion of the carrier member away from the first movable block along the X-axis direction. The pusher causes the carrier member to move along the direction from the mold core toward the upper mold mechanism, so that the carrier member ejects the adhesive material forming the product from the receiving cavity and / or causes the carrier member to apply a force along the X-axis direction to the first movable block and push the first movable block to move and reset.

8. The injection mold of claim 7, wherein, The push assembly also includes a compression spring, which applies a spring force to the top plate in the direction from the upper mold mechanism toward the mold core, and pushes the top plate to move and reset.

9. The injection mold of claim 2, wherein, The bearing member has a receiving space at one end away from the upper mold mechanism for accommodating part of the first movable member, and the first inclined surface of the first movable member contacts the side wall of the receiving space.

10. The injection mold of claim 1, wherein, A sealing layer is provided between the carrier and the side wall of the receiving cavity, the sealing layer being used to seal between the carrier and the mold core; the upper mold mechanism includes a nozzle for spraying adhesive into the receiving cavity.

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