Mold structure

Abstract

This invention discloses a mold structure, comprising a template structure, a top block, and an ejection structure. The template structure includes a rear template and a base plate. An installation channel is formed on the top block to accommodate a runner, and the runner has a gate. The top block mates with the rear template to form an installation groove. The top block also mates with the rear template to form a receiving groove, within which an elastic element is disposed. A runner ejection assembly is connected to a drive structure to push the runner away from the installation channel. The elastic element pushes the top block away from the rear template when the undercut is disengaged from the glue position groove. An ejection plate is connected to the drive structure, and the ejection plate pushes the angled ejector to move, causing the undercut to disengage from the glue position groove, and pushes the ejection rod to abut against the product, thus pushing the product away from the installation groove. This invention, by setting the top block to fix the product during the angled ejector's disengagement of the undercut, avoids damage to the laser-engraved patterns on the product surface caused by the angled ejector pulling the product, ensuring the integrity of the laser-engraved patterns on the product surface.

Description

Technical Field

[0001] This invention relates to the field of molds, and more specifically to a mold structure. Background Technology

[0002] Currently, with the increasingly widespread use of electronic products, people have higher and higher requirements for the aesthetics of electronic products, and have begun to use laser engraving technology to engrave patterns on the surface of electronic products. Laser engraving uses laser technology to engrave patterns on objects. The patterns engraved by this technology are scratch-free, the surface of the object remains smooth, and the lettering will not wear off. After the patterns are laser-engraved around the edges of the electronic product, an undercut needs to be formed in the center of the bottom surface through injection molding. During the mold opening process, the angled ejector pulling out the undercut can pull on the product, causing damage to the laser-engraved patterns on the surface of the electronic product. Summary of the Invention

[0003] The main objective of this invention is to provide a mold structure that solves the problem of tearing the laser-engraved patterns on the surface of electronic products caused by the pulling of the product during the process of the inclined ejector releasing the undercut.

[0004] To achieve the above objectives, the mold structure proposed in this invention includes a template structure, an ejector block, and an ejection structure. The template structure includes a rear template and a base plate, with an ejection space extending in a first direction formed between the rear template and the base plate. The ejector block is disposed on the rear template and has an installation channel for accommodating a runner, the runner having a gate. The ejector block mates with the rear template to form an installation groove. The ejector block also mates with the rear template to form a receiving groove, within which an elastic element is disposed, abutting against the ejector block and the rear template. The ejection structure is disposed within the ejection space and includes an ejector plate, a runner ejection assembly, and a product ejection assembly. The product... The ejection assembly includes an inclined ejector and an ejector rod connected to the ejection plate. A glue groove is formed at the position of the inclined ejector corresponding to the product. The glue groove cooperates with the mounting groove to form an injection cavity. The gate is used to inject the product into the injection cavity to form a product. The portion of the product corresponding to the glue groove forms an undercut. The runner ejection assembly is connected to a drive structure to push the runner away from the mounting channel. The elastic element pushes the ejector block away from the rear template when the undercut is disengaged from the glue groove. The ejection plate is connected to the drive structure. The ejection plate pushes the inclined ejector to move so that the undercut is disengaged from the glue groove, and pushes the ejector rod to abut against the product to push the product away from the mounting groove.

[0005] Optionally, the article includes a main body and the buckle. The main body includes a middle portion and an edge portion surrounding the middle portion. The buckle is connected to the middle portion. The top block forms a support groove, and the rear template forms a support plane. The support groove and the support plane cooperate to form the mounting groove. The article forms the middle portion corresponding to the position of the support plane, and the article forms the edge portion corresponding to the position of the support groove. When the elastic member pushes the top block away from the rear template, the ejector plate pushes the ejector rod to abut against the middle portion to push the middle portion away from the support plane, and the edge portion is supported on the support groove.

[0006] Optionally, the mold structure further includes an ejector rod, which includes a connected rod body and a stop protrusion. The rod body is connected to the ejector block. The ejector plate has a connecting groove, and the bottom wall of the connecting groove has a through hole through which the rod body can slidably pass. The bottom wall of the connecting groove has a stepped surface, which is used to stop the stop protrusion. The ejector plate can move along the first direction to form a travel space between the stepped surface and the stop protrusion.

[0007] Optionally, the top block and the rod are detachably connected by fasteners.

[0008] Optionally, the flow channel ejection assembly includes a connected base and a flow channel ejector pin, the end of the base away from the flow channel ejector pin passing through the base plate and for connecting to the drive structure, and the end of the flow channel ejector pin away from the base passing through the rear template and for abutting against the flow channel.

[0009] Optionally, the flow channel ejection assembly further includes a first limiting block, which is elastically connected to the flow channel ejector pin along the first direction, and a limiting groove facing the bottom plate is formed on the rear template; the flow channel ejector pin moves along the direction close to the flow channel, pushing the first limiting block to move towards the bottom wall of the limiting groove.

[0010] Optionally, the flow channel ejector pin or the connection between the flow channel ejector pin and the base forms an abutment surface, and the flow channel ejection assembly further includes a reset member, which is sleeved outside the flow channel ejector pin and abuts against the abutment surface and the first limiting block.

[0011] Optionally, the ejector plate includes a plate body and a pull block. The plate body forms a cavity. One end of the pull block is used to connect with the drive structure. The other end of the pull block extends through the bottom plate into the cavity. There is a clearance travel between the bottom wall of the cavity and the pull block. The pull block is used to move along the first direction and abuts against the bottom wall of the cavity to push the plate body to move in a direction closer to the rear template.

[0012] Optionally, the pull block has a pull protrusion, the cavity has a stop surface, and the pull protrusion is used to abut against the stop surface to pull the plate body to move in a direction close to the bottom plate.

[0013] Optionally, a second limiting block is provided on the plate body, the second limiting block being used to abut against the rear template.

[0014] In this invention, the rear template is located above the base plate, and an ejection space is formed between the rear template and the base plate. A top block is mounted on the rear template, and an installation channel is formed on the top block. The installation channel accommodates a flow channel, and gates are formed at both ends of the flow channel for the injection molding liquid to flow into. The top block and the rear template cooperate to form a receiving groove. An elastic element is disposed within the receiving groove and abuts against the top block and the rear template. The elastic element provides power to eject the top block, causing it to detach from the rear template. The angled ejector and ejector rod are both connected to the ejector plate. Moving the ejector plate upwards can move the angled ejector and ejector rod upwards. A glue groove is formed at the position of the angled ejector corresponding to the product. The glue groove is used to form an undercut. The glue groove cooperates with the mounting groove to form an injection cavity. The gate is connected to the injection cavity and is used to inject molding liquid into the injection cavity to form the product.

[0015] The product consists of a connected main body and an undercut, with a laser-engraved area on the main body. During product formation, laser-engraved patterns are first created in the laser-engraved area, and then the main body and undercut are formed in one injection molding process. During demolding, the mold structure ejects the product in three stages. In the first ejection, the drive structure moves the runner ejection assembly upwards a first distance, pushing the runner upwards to disengage it from the mounting channel. At this time, neither the ejector block nor the product moves. In the second ejection, the drive structure moves the runner ejection assembly and ejector plate upwards a second distance, the distance the elastic element can push the ejector block upwards. The runner ejection assembly continues to push the runner upwards a second distance, and the ejector plate pushes the ejector rod upwards, causing the ejector rod to contact the product and partially disengage it from the mounting groove. Simultaneously, the ejector plate pushes the angled ejector upwards, causing the undercut to disengage from the glue groove. The angled ejector has a large clamping force when disengaging from the undercut. During this process, the elastic element pushes the ejector block upwards a second distance. The ejector block supports and fixes the product during this disengagement, preventing damage to the laser-engraved patterns on the product surface caused by the angled ejector pulling on it, thus ensuring the integrity of the laser-engraved patterns. During the third ejection, the drive structure moves the flow channel ejection assembly and ejection plate upwards a third distance. The flow channel ejection assembly continues to push the flow channel upwards a third distance, and the ejection plate pushes the ejection rod and angled ejector upwards, causing the product to move upwards a third distance, facilitating the robot arm's gripping of the product. At this point, since the angled ejector has disengaged from the undercut, it will no longer pull on the product, and the ejector block stops moving upwards. In other words, the ejector block no longer supports the product during the third ejection.

[0016] The mold structure in this invention uses a top block to fix the product during the process of the inclined ejector releasing the inverted clip, thereby preventing the inclined ejector from pulling the product and causing damage to the laser engraved patterns on the product surface, and ensuring the integrity of the laser engraved patterns on the product surface. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional schematic diagram of the mold structure in an embodiment of the present invention during mold closing;

[0019] Figure 2 This is a three-dimensional structural diagram of a mold structure according to an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional schematic diagram of the mold structure during the first ejection according to an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional schematic diagram of the mold structure in an embodiment of the present invention, showing the second ejection at an angle.

[0022] Figure 5 This is a cross-sectional schematic diagram of the mold structure ejecting at another angle for the second time, according to an embodiment of the present invention.

[0023] Figure 6 This is a cross-sectional schematic diagram of the mold structure during the third ejection according to an embodiment of the present invention;

[0024] Figure 7 This is a cross-sectional schematic diagram of a flow channel ejection assembly according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic cross-sectional view of the connection between the product and the top block according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic cross-sectional view of the connection between the pull block and the plate in one embodiment of the present invention.

[0027] Explanation of icon numbers:

[0028]

[0029]

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0033] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0036] In this invention, the descriptions of directions such as "up," "down," "front," "back," "left," and "right" are as follows: Figure 1 The directions shown are for reference only and are used to interpret the location. Figure 2 The relative positional relationship between the components in the shown posture is such that if the specific posture changes, the directional indication will also change accordingly.

[0037] This invention provides a mold structure.

[0038] The first direction is Figure 1 The up and down directions in the middle.

[0039] In one embodiment, such as Figures 1 to 9As shown, the mold structure 100 includes a template structure 10, an ejector block 20, and an ejection structure 30. The template structure 10 includes a rear template 11 and a base plate 12, with an ejection space 13 extending in a first direction formed between the rear template 11 and the base plate 12. The ejector block 20 is disposed on the rear template 11, and an installation channel 21 is formed on the ejector block 20 for accommodating a runner 60, which has a gate. The ejector block 20 cooperates with the rear template 11 to form an installation groove. The ejector block 20 cooperates with the rear template 11 to form a receiving groove 22, and an elastic element 221 is disposed in the receiving groove 22, which abuts against the ejector block 20 and the rear template 11. The ejection structure 30 is disposed in the ejection space 13 and includes an ejection plate 31, a runner ejection assembly 32, and a ejection mechanism. The product ejection assembly 33 includes an inclined ejector 331 and an ejector rod 332 connected to the ejector plate 31. The inclined ejector 331 has a glue groove at the position corresponding to the product 50. The glue groove cooperates with the mounting groove to form an injection cavity. The gate is used to inject the product 50 into the injection cavity. The part of the product 50 corresponding to the glue groove forms an undercut 52. The runner ejection assembly 32 is used to connect with the drive structure to push the runner 60 away from the mounting channel 21. The elastic member 221 is used to push the top block 20 away from the rear template 11 when the undercut 52 is away from the glue groove. The ejector plate 31 is used to connect with the drive structure. The ejector plate 31 pushes the inclined ejector 331 to move so that the undercut 52 is away from the glue groove, and pushes the ejector rod 332 to abut against the product 50 to push the product 50 away from the mounting groove.

[0040] The rear template 11 is located above the base plate 12, and an ejection space 13 is formed between the rear template 11 and the base plate 12. A top block 20 is disposed on the rear template 11, and an installation channel 21 is formed on the top block 20. The installation channel 21 is used to accommodate a runner 60, and gates are formed at both ends of the runner 60 for the injection molding liquid to flow in. The top block 20 cooperates with the rear template 11 to form a receiving groove 22. An elastic element 221 is disposed within the receiving groove 22 and abuts against the top block 20 and the rear template 11. The elastic element 221 provides power to eject the top block 20, causing it to detach from the rear template 11. An inclined ejector 331 and an ejector rod 332 are both connected to an ejector plate 31. Moving the ejector plate 31 upwards can drive the inclined ejector 331 and the ejector rod 332 upwards. A glue groove is formed at the position of the inclined top 331 corresponding to the product 50. The glue groove is used to form the undercut 52. The glue groove and the mounting groove cooperate to form the injection cavity. The gate is connected to the injection cavity and is used to inject plastic into the injection cavity to form the product 50.

[0041] Please refer to the reference. Figure 8The product 50 includes a connected main body 51 and an undercut 52, with a laser-engraved area on the main body 51. During the formation of the product 50, laser-engraved patterns are first formed in the laser-engraved area, and then the main body 51 and the undercut 52 are formed in one injection molding process. During the demolding process of the product 50, the mold structure 100 ejects the product in three stages.

[0042] Please refer to the reference. Figure 1 , Figure 3 and Figure 7 During the first ejection, the drive structure drives the flow channel ejection component 32 to move upward a first distance, taking 30mm as an example. The flow channel ejection component 32 pushes the flow channel 60 upward so that the flow channel 60 is disengaged from the installation channel 21. At this time, neither the top block 20 nor the product 50 moves.

[0043] Please refer to the reference. Figure 4 and Figure 5 During the second ejection, the drive structure drives the flow channel ejection assembly 32 and the ejection plate 31 to move upward a second distance. The second distance is the distance that the elastic element 221 can push the top block 20 to move upward. Taking 5mm as an example, the flow channel ejection assembly 32 continues to push the flow channel 60 to move upward a second distance. The ejection plate 31 pushes the ejection rod 332 to move upward, so that the ejection rod 332 abuts against the product 50 to push the product 50 to partially disengage from the mounting groove. At the same time, the ejection plate 31 pushes the inclined top 331 to move upward, so that the undercut 52 disengages from the glue position groove. The inclined top 331 has a large clamping force when it comes out of the inverted buckle 52. During the process of the inclined top 331 coming out of the inverted buckle 52, the elastic element 221 pushes the top block 20 to move upward a second distance. During the process of the inclined top 331 coming out of the inverted buckle 52, the top block 20 can support and fix part of the product 50, so as to avoid the inclined top 331 pulling the product 50 and causing damage to the laser engraving pattern on the surface of the product 50, thus ensuring the integrity of the laser engraving pattern on the surface of the product 50.

[0044] Please refer to the reference. Figure 6 During the third ejection, the drive structure moves the flow channel ejection assembly 32 and the ejection plate 31 upwards by a third distance (35mm for example). The flow channel ejection assembly 32 continues to push the flow channel 60 upwards by a third distance, and the ejection plate 31 pushes the ejection rod 332 and the inclined ejector 331 upwards, causing the product 50 to continue moving upwards by a third distance, making it easier for the robot arm to grasp the product 50. At this point, since the inclined ejector 331 has disengaged from the inverted clip 52, it will no longer pull on the product 50, and the top block 20 stops moving and no longer moves upwards. That is, during the third ejection, the top block 20 no longer supports the product 50.

[0045] The mold structure 100 of the present invention fixes the product 50 by setting the top block 20 during the process of the inclined top 331 disengaging from the inverted buckle 52, so as to avoid the laser engraving pattern on the surface of the product 50 being damaged by the inclined top 331 pulling the product, and to ensure the integrity of the laser engraving pattern on the surface of the product 50.

[0046] Specifically, please refer to the following: Figure 1 and Figure 2 A support plate 14 is provided between the rear template 11 and the base plate 12. The support plate 14 supports the base plate 12 and the rear template 11, so that an ejection space 13 is formed between the rear template 11 and the base plate 12. The ejection plate 31 includes an upper ejection plate 31 and a lower ejection plate 31, which move synchronously.

[0047] In one embodiment, please refer to the reference Figure 8 The product 50 includes a main body 51 and an undercut 52. The main body 51 includes a middle part 511 and an edge part 512 surrounding the middle part 511. The undercut 52 is connected to the middle part 511. The top block 20 forms a support groove 23, and the rear template 11 forms a support plane. The support groove 23 cooperates with the support plane to form an installation groove. The product 50 forms the middle part 511 corresponding to the position of the support plane, and the product 50 forms the edge part 512 corresponding to the position of the support groove 23. When the elastic member 221 pushes the top block 20 away from the rear template 11, the ejector plate 31 pushes the ejector rod 332 to abut against the middle part 511 to push the middle part 511 away from the support plane, and the edge part 512 is supported on the support groove 23.

[0048] The main body 51 includes a middle portion 511 and an edge portion 512. The edge portion 512 surrounds the middle portion 511, and an underpinning 52 is connected to the middle portion 511. A support groove 23 is formed on the edge of the top block 20. The product 50 forms the edge portion 512 corresponding to the position of the support groove 23, and the product 50 forms the middle portion 511 corresponding to the position of the support plane. That is, the edge portion 512 corresponds to the support groove 23, and the middle portion 511 corresponds to the support plane. The support groove 23 and the support plane cooperate to support the product 50.

[0049] During the second ejection, the drive structure drives the ejector plate 31 to move upward, and the ejector plate 31 pushes the ejector rod 332 upward, so that the ejector rod 332 abuts against the product 50 to push the middle part 511 away from the supporting plane. At the same time, the ejector plate 31 pushes the inclined ejector 331 upward, so that the undercut 52 is disengaged from the glue groove. During the process of the inclined ejector 331 disengaging from the undercut 52, the elastic element 221 pushes the top block 20 upward to move a second distance, so that the supporting groove 23 of the top block 20 can support the edge part 512 when the inclined ejector 331 disengages from the undercut 52. This ensures that the top block 20 can fix the product 50 during the process of the inclined ejector 331 disengaging from the undercut 52, and avoids the laser engraving pattern on the surface of the product 50 being scratched by the inclined ejector 331 pulling the product.

[0050] During the third ejection, the drive structure moves the flow channel ejection assembly 32 and the ejection plate 31 upwards by a third distance. The flow channel ejection assembly 32 continues to push the flow channel 60 upwards by a third distance, and the ejection plate 31 pushes the ejection rod 332 and the inclined ejector 331 upwards, causing the product 50 to continue moving upwards by a third distance, making it easier for the robot arm to grasp the product 50. At this point, since the inclined ejector 331 has disengaged from the undercut 52, it will no longer pull on the product 50, the top block 20 stops moving, and the support groove 23 no longer supports the edge part 512.

[0051] In one embodiment, please refer to the reference Figure 5 The mold structure 100 also includes an ejector pin 40, which includes a rod body 41 and a stop protrusion 42 connected together. The rod body 41 is connected to the ejector block 20. The ejector plate 31 forms a connecting groove 311. The bottom wall of the connecting groove 311 has a through hole 312, through which the rod body 41 can slide. The bottom wall of the connecting groove 311 forms a stepped surface, which is used to stop the stop protrusion 42. The ejector plate 31 can move in a first direction to form a stroke space between the stepped surface and the stop protrusion 42.

[0052] The push rod 40 includes a rod body 41 and a stop protrusion 42. The rod body 41 is connected to the top block 20, so that the movement of the top block 20 can drive the push rod 40 to move. The ejector plate 31 has a connecting groove 311 that extends vertically. The bottom wall of the connecting groove 311 has a through hole 312 located above the connecting groove 311. The rod body 41 can slide through the through hole 312 and can slide vertically relative to the wall of the through hole 312. The bottom wall of the connecting groove 311 has a stepped surface that stops the stop protrusion 42.

[0053] During the first ejection, the ejector plate 31 remains stationary, and the step surface stops the stop protrusion 42, preventing the ejector rod 40 from moving upward. The rod body 41 of the ejector rod 40 is connected to the ejector block 20, preventing the ejector block 20 from moving upward. In other words, during the first ejection, the stop protrusion 42 is stopped by the step surface, and the elastic element 221 cannot push the ejector block 20 upward.

[0054] During the second ejection, the ejector plate 31 moves upward a second distance, creating a travel space between the step surface and the stop protrusion 42, allowing the ejector rod 40 to move upward so that the elastic element 221 can push the ejector block 20 upward.

[0055] During the third ejection, the ejector plate 31 continues to move upward a third distance, but the elastic force of the elastic element 221 can only push the top block 20 upward a second distance. At this time, the ejector rod 40 no longer moves upward. Due to the existence of the connecting groove 311, there is a clearance distance between the ejector rod 40 and the ejector plate 31, which allows the ejector plate 31 to continue moving upward a third distance without interfering with the ejector rod 40.

[0056] When the ejector plate 31 moves downward, the stepped surface abuts against the stop protrusion 42, allowing the ejector plate 31 to drive the push rod 40 downward. The push rod 40 then drives the top block 20 downward, causing the top block 20 to return to its original position. Through the clever cooperation between the push rod 40 and the ejector plate 31, the elastic element 221 can push the top block 20 upward a second distance, and the ejector plate 31 can drive the top block 20 downward.

[0057] In other embodiments, the elastic element 221 can be set as an electric spring, and the deformation of the electric spring can be controlled by the circuit. Specifically, during the second ejection process, the electric spring is controlled to open so as to push the top block 20 upward; during reset, the electric spring is controlled to contract so that the top block 20 can return to the initial position.

[0058] In one embodiment, please refer to the reference Figure 5 The top block 20 and the rod 41 are detachably connected by fasteners 43.

[0059] The top block 20 is detachably connected to the rod body 41, facilitating replacement when the top block 20 wears out, making its use more flexible and convenient. The top block 20 and the rod body 41 are detachably connected by a fastener 43, which is a bolt. Bolts have the advantages of being easy to obtain and easy to install.

[0060] In one embodiment, please refer to the reference Figure 3 and Figure 7 The flow channel ejection assembly 32 includes a base 321 and a flow channel ejector pin 322 connected to each other. One end of the base 321 away from the flow channel ejector pin 322 passes through the base plate 12 and is used to connect with the drive structure. The other end of the flow channel ejector pin 322 away from the base 321 passes through the rear template 11 and is used to abut against the flow channel 60.

[0061] The flow channel ejection assembly 32 includes a base 321 and a flow channel ejector pin 322. The base 321 is connected to the flow channel ejector pin 322 and is located below the flow channel ejector pin 322. The end of the base 321 furthest from the flow channel ejector pin 322, i.e., the bottom end of the base 321, passes through the base plate 12 and is used to connect with the drive structure, thereby connecting the flow channel ejection assembly 32 to the drive structure so that the drive structure can push the flow channel ejection assembly 32 to move vertically. The end of the flow channel ejector pin 322 furthest from the base 321, i.e., the top end of the flow channel ejector pin 322, passes through the rear template 11 and is used to abut against the flow channel 60. The drive structure drives the base 321 to move upward, and the base 321 drives the flow channel ejector pin 322 to move upward, causing the flow channel ejector pin 322 to abut against the flow channel 60 to push the flow channel 60 upward, causing the flow channel 60 to disengage from the mounting channel 21.

[0062] In one embodiment, please refer to the reference Figure 3 and Figure 7 The flow channel ejection assembly 32 also includes a first limiting block 323, which is elastically connected to the flow channel ejector pin 322 along a first direction. A limiting groove 111 facing the bottom plate 12 is formed on the rear template 11. The flow channel ejector pin 322 moves along the direction close to the flow channel 60, pushing the first limiting block 323 to move towards the bottom wall of the limiting groove 111.

[0063] The first limiting block 323 is elastically connected to the flow channel ejector pin 322 in the vertical direction. A limiting groove 111 is formed on the rear template 11, extending vertically with its opening facing the bottom plate 12. The flow channel ejector pin 322 moves towards the flow channel 60, i.e., it moves upward, pushing the first limiting block 323 upward, gradually approaching the bottom wall of the limiting groove 111 until it abuts against the bottom wall. During the third ejection, the drive structure drives the flow channel ejector pin 322 upward a third distance, after which the first limiting block 323 abuts against the bottom wall of the limiting groove 111. By setting the first limiting block 323 and the limiting groove 111 to cooperate, the upward movement of the flow channel ejection assembly 32 is limited, preventing excessive upward movement and making the use of the flow channel ejection assembly 32 more convenient.

[0064] In one embodiment, please refer to the reference Figure 3 and Figure 7 The flow channel ejector pin 322 or the connection between the flow channel ejector pin 322 and the base 321 forms an abutment surface. The flow channel ejection assembly 32 also includes a reset member 324, which is sleeved on the outside of the flow channel ejector pin 322 and abuts against the abutment surface and the first limiting block 323.

[0065] The flow channel ejector pin 322 has an abutment surface. Specifically, the flow channel ejector pin 322 can form an abutment surface by setting two connecting sections of different sizes. Alternatively, the abutment surface is formed at the connection between the flow channel ejector pin 322 and the base 321. The reset member 324 is a spring, which has the advantage of easy installation. The reset member 324 is sleeved on the outside of the flow channel ejector pin 322, and the flow channel ejector pin 322 can guide the deformation of the reset member 324. The lower end of the reset member 324 abuts against the abutment surface, and the upper end of the reset member 324 abuts against the first limiting block 323. The driving structure drives the base 321 to move upward, and the base 321 drives the flow channel ejector pin 322 to move upward. The abutment surface abuts against the reset member 324, and the flow channel ejector pin 322 continues to move upward. The reset member 324 is compressed and pushes the first limiting block 323 to move upward until the first limiting block 323 abuts against the bottom wall of the limiting groove 111. After the product 50 is removed, the reset component 324 can push the flow channel pin 322 and the base 321 downward to reset.

[0066] In one embodiment, please refer to the reference Figure 3 and Figure 9 The ejector plate 31 includes a plate body 313 and a pull block 314. The plate body 313 forms a cavity 3131. One end of the pull block 314 is used to connect with the drive structure. The other end of the pull block 314 extends through the bottom plate 12 into the cavity 3131. There is a clearance travel between the bottom wall of the cavity 3131 and the pull block 314. The pull block 314 is used to move in a first direction and abut against the bottom wall of the cavity 3131 to push the plate body 313 to move in a direction closer to the rear template 11.

[0067] The plate 313 has a clearance cavity 3131 that extends vertically. The lower end of the pull block 314 is used to connect with the drive structure, and the upper end of the pull block 314 extends through the bottom plate 12 into the clearance cavity 3131. There is a clearance travel between the bottom wall of the clearance cavity 3131 and the pull block 314, and the length of the clearance travel is equal to a first distance. During the first ejection, the drive structure drives the pull block 314 and the flow channel ejection assembly 32 to move upward a first distance. At this time, due to the clearance travel, the pull block 314 does not push the plate 313 upward; only the flow channel 60 ejection assembly 32 moves upward to push the flow channel 60 out of the mounting channel 21. During the second ejection, the pull block 314 abuts against the bottom wall of the cavity 3131, pushing the plate 313 upward a second distance. The plate 313 then drives the inclined ejector 331 and the ejector rod 332 upward, causing the inclined ejector 331 to disengage from the buckle 52. During the third ejection, the pull block 314 continues to push the plate 313 upward a third distance, facilitating the robot arm to grasp the product 50. By setting the pull block 314 and the cavity travel in coordination, during the first ejection, the drive structure can simultaneously push the pull block 314 and the flow channel ejection assembly 32, ejecting the flow channel 60, but the top block 20 and the product 50 remain stationary.

[0068] In one embodiment, please refer to the reference Figure 9 The pull block 314 has a pull protrusion 3141, and the cavity 3131 has a stop surface 3132. The pull protrusion 3141 is used to abut against the stop surface 3132 to pull the plate 313 to move in the direction close to the bottom plate 12.

[0069] The edge of the pull block 314 has a pull protrusion 3141 that extends horizontally, and the cavity 3131 has a stop surface 3132. After the product 50 is grasped by the robot arm, the drive structure drives the pull block 314 to move downwards during the cavity clearance stroke until the pull protrusion 3141 abuts against the stop surface 3132. The pull block 314 continues to move downwards, and the pull protrusion 3141 pulls the plate 313 downwards, causing the plate 313 to return to its original position. By setting the pull protrusion 3141 and the stop surface 3132 to cooperate, the pull block 314 can drive the plate 313 to move downwards to return to its original position.

[0070] In other embodiments, the driving structure includes a first driving unit and a second driving unit. The first driving unit drives the flow channel ejection assembly 32, and the second driving unit drives the ejection plate 31. During the first ejection, the first driving unit drives the flow channel ejection assembly 32 to move upward a first distance, while the second driving unit remains stationary. During the second ejection, the first driving unit continues to drive the flow channel ejection assembly 32 to move upward a second distance, and simultaneously, the second driving unit drives the ejection plate 31 to move upward a second distance. During the third ejection, the first driving unit continues to drive the flow channel ejection assembly 32 to move upward a third distance, and the second driving unit drives the ejection plate 31 to move upward a third distance.

[0071] By setting a first driving unit and a second driving unit to drive the flow channel ejection assembly 32 and the ejection plate 31 respectively, the driving structure can drive the flow channel ejection assembly 32 and the ejection plate more accurately, and at the same time, there is no need to set a clearance stroke. The first driving unit and the second driving unit can be cylinders or hydraulic cylinders. The output end of the first driving unit is connected to the flow channel ejection assembly, and the output end of the second driving unit is connected to the ejection plate 32. The second driving unit can directly drive the ejection plate 32 to move upward or downward, so there is no need to set up structures such as the backward pull protrusion 3141, which makes it easier for the driving structure to control the movement of the flow channel ejection assembly 32 and the ejection plate 31.

[0072] In one embodiment, please refer to the reference Figure 3 and Figure 9 A second limiting block 315 is provided on the plate 313, which is used to abut against the rear template 11.

[0073] The second limiting block 315 is disposed on the plate 313. The second limiting block 315 is used to abut against the rear template 11. By setting the second limiting block 315, the upward movement of the plate 313 is limited, so as to prevent the plate 313 from moving too far upward, making the use of the plate 313 more convenient and reasonable.

[0074] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A mold structure, characterized in that, The mold structure includes: A template structure, comprising a rear template and a base plate, wherein an ejection space extending in a first direction is formed between the rear template and the base plate; A top block is disposed on the rear template and has an installation channel formed thereon for accommodating a flow channel, the flow channel having a gate; the top block and the rear template cooperate to form an installation groove; the top block and the rear template cooperate to form a receiving groove, an elastic element is disposed in the receiving groove, the elastic element abutting between the top block and the rear template; An ejection structure is disposed within the ejection space. The ejection structure includes an ejection plate, a runner ejection assembly, and a product ejection assembly. The product ejection assembly includes an inclined ejector and an ejection rod connected to the ejection plate. A glue groove is formed at the position of the inclined ejector corresponding to the product. The glue groove cooperates with the mounting groove to form an injection cavity. The gate is used to inject molded into the injection cavity to form a product. The part of the product corresponding to the glue groove forms an undercut. The flow channel ejection assembly is used to connect with the drive structure to push the flow channel away from the mounting channel; the elastic element is used to push the top block away from the rear template when the undercut is disengaged from the glue groove; the ejection plate is used to connect with the drive structure, the ejection plate pushes the inclined top to move so that the undercut is disengaged from the glue groove, and pushes the ejection rod to abut against the product to push the product away from the mounting groove; The product includes a main body and the buckle. The main body includes a middle portion and an edge portion surrounding the middle portion. The buckle is connected to the middle portion. The top block has a support groove, and the rear template has a support plane. The support groove and the support plane cooperate to form the mounting groove. The product forms the middle portion corresponding to the position of the support plane, and the product forms the edge portion corresponding to the position of the support groove. When the elastic element pushes the top block away from the rear template, the ejector plate pushes the ejector rod to abut against the middle portion to push the middle portion away from the support plane, and the edge portion is supported on the support groove.

2. The mold structure as described in claim 1, characterized in that, The mold structure further includes an ejector rod, which includes a connected rod body and a stop protrusion. The rod body is connected to the ejector block. The ejector plate has a connecting groove, and the bottom wall of the connecting groove has a through hole through which the rod body can slide. The bottom wall of the connecting groove has a stepped surface, which is used to stop the stop protrusion. The ejector plate can move along the first direction to form a travel space between the stepped surface and the stop protrusion.

3. The mold structure as described in claim 2, characterized in that, The top block and the rod are detachably connected by fasteners.

4. The mold structure as described in any one of claims 1 to 3, characterized in that, The flow channel ejection assembly includes a connected base and a flow channel ejector pin. The end of the base away from the flow channel ejector pin passes through the base plate and is used to connect with the drive structure. The end of the flow channel ejector pin away from the base passes through the rear template and is used to abut against the flow channel.

5. The mold structure as described in claim 4, characterized in that, The flow channel ejection assembly further includes a first limiting block, which is elastically connected to the flow channel ejector pin along the first direction. A limiting groove facing the bottom plate is formed on the rear template. The flow channel ejector pin moves along the direction close to the flow channel, pushing the first limiting block to move towards the bottom wall of the limiting groove.

6. The mold structure as described in claim 5, characterized in that, The flow channel ejector pin or the connection between the flow channel ejector pin and the base forms an abutment surface. The flow channel ejection assembly also includes a reset member, which is sleeved outside the flow channel ejector pin and abuts against the abutment surface and the first limiting block.

7. The mold structure as described in any one of claims 1 to 3, characterized in that, The ejector plate includes a plate body and a pull block. The plate body forms a cavity. One end of the pull block is used to connect with the drive structure. The other end of the pull block extends through the bottom plate into the cavity. There is a clearance travel between the bottom wall of the cavity and the pull block. The pull block is used to move along the first direction and abuts against the bottom wall of the cavity to push the plate body to move in a direction closer to the rear template.

8. The mold structure as described in claim 7, characterized in that, The pull block has a pull protrusion, and the cavity has a stop surface. The pull protrusion is used to abut against the stop surface to pull the plate body to move in a direction close to the bottom plate.

9. The mold structure as described in claim 7, characterized in that, A second limiting block is provided on the plate body, and the second limiting block is used to abut against the rear template.

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