pressing mold

Abstract

This application relates to the field of molds and aims to solve the problem of product damage caused by the mold during demolding due to unbalanced ejection forces in pressing molds. The pressing mold includes an upper mold assembly and a lower mold assembly, which are used for pressing the product. The lower mold assembly includes a base plate, a lower template, a movable part, and a positioning part. The lower template is spaced apart from the base plate and is used to hold the product. The movable part is movably disposed between the base plate and the lower template. The positioning part is connected to the movable part and protrudes from the movable part toward the lower template. The movable part is used to move the positioning part, which can move to a position to hold the product to position it, or move to a position away from the product to demold it. When the positioning part of the pressing mold holds or separates from the product, the product is always contained within the lower template, and the product is balanced by the supporting force of the lower template, thereby reducing the damage to the product caused by the pressing mold.

Description

Technical Field

[0001] This application relates to the field of molds, and more specifically, to pressing molds. Background Technology

[0002] Press molds typically use ejection to demold products. When a product is ejected from a press mold, the product experiences localized ejection force, leading to an imbalance of forces and potentially causing the product to be pulled apart by the mold or its structure to be damaged during demolding. How to solve these technical problems is a question that those skilled in the art need to consider. Summary of the Invention

[0003] This application provides a pressing mold to solve the problem that when a product is demolded, the product is damaged by the mold due to an imbalance of ejection force.

[0004] An embodiment of this application discloses a pressing mold, including an upper mold assembly and a lower mold assembly, which are used for pressing products. The lower mold assembly includes a base plate, a lower template, a movable part, and a positioning part. The lower template is spaced apart from the base plate and is used to hold the product. The movable part is movably disposed between the base plate and the lower template. The positioning part is connected to the movable part and protrudes from the movable part toward the lower template. The movable part is used to drive the positioning part to move, and the positioning part can move to a position that abuts against the product to position the product, or move to a position away from the product to demold the product.

[0005] In existing technologies, the positioning accuracy is not high or positioning is not considered when the product is ejected from the mold, resulting in an imbalance of forces on the ejected product and causing damage. Compared with existing technologies, in this embodiment, the positioning component of the pressing mold protrudes from the movable component toward the lower mold plate. During the pressing process, the movable component drives the positioning component to move toward the product, so that the positioning component holds the product to position it. After the pressing process is completed, the movable component drives the positioning component away from the product, so that the positioning component separates from the product and the product is demolded. This design allows the positioning component to both position the product and demold it. At the same time, when the positioning component holds or separates from the product, the product is always positioned on the lower mold plate, so that the position of the product remains basically unchanged. Therefore, the product is balanced by the support force of the lower mold plate, thereby reducing the risk of the product being pulled by the pressing mold or damaged in terms of product structure.

[0006] In one possible implementation, the lower template includes a positioning portion, the positioning portion includes a groove, the positioning element is disposed in the groove, and the product includes a positioning structure that protrudes toward the groove and cooperates with the positioning element.

[0007] In one possible implementation, the positioning part further includes a through hole, which is formed on the bottom surface of the groove, and the positioning member is movably disposed in the through hole.

[0008] In one possible implementation, the lower template further includes a receiving portion, and multiple positioning portions are provided, with the multiple positioning portions distributed in the receiving portion, and the receiving portion is in contact with the surface of the product.

[0009] In one possible implementation, the positioning element includes a positioning post, the positioning post including a head that extends to the positioning structure of the product.

[0010] In one possible implementation, the positioning element further includes a positioning block, the positioning block including an inclined surface that conforms to the positioning structure of the product.

[0011] In one possible implementation, the movable component includes a guide plate with a guide hole, and the positioning component is accommodated in the guide hole. The lower template has a through hole corresponding to the guide hole, and the positioning component extends toward the through hole.

[0012] In one possible implementation, the inner surface of the guide hole extends radially with a stepped surface, and the end of the positioning member away from the lower template corresponds to and abuts against the stepped surface.

[0013] In one possible implementation, the lower mold assembly further includes a drive member, which is connected to the movable member and the base plate respectively, and is used to drive the movable member away from or towards the base plate.

[0014] In one possible implementation, the lower mold assembly further includes a support member that is supported between the base plate and the lower mold plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of a pressing mold according to an embodiment of this application;

[0017] Figure 2 for Figure 1 A top view of the pressing mold that conceals the upper mold assembly and the product;

[0018] Figure 3 for Figure 2 A partial schematic diagram of area A of the pressing mold;

[0019] Figure 4 for Figure 1 A top view of the pressing mold that hides the upper mold assembly;

[0020] Figure 5 for Figure 4 A cross-sectional view of the pressing mold along line V-V;

[0021] Figure 6 for Figure 5 A partial schematic diagram of area B of the pressing mold;

[0022] Figure 7 for Figure 4 A cross-sectional view of the pressing mold along line VII–VII;

[0023] Figure 8 for Figure 7 A partial schematic diagram of region C of the pressing mold.

[0024] Explanation of key component symbols:

[0025] Pressing mold 1

[0026] Upper mold component 11

[0027] Template 111

[0028] Lower mold component 12

[0029] Base plate 121

[0030] Template 122

[0031] Positioning Unit 123

[0032] Groove 1231

[0033] Through hole 1232

[0034] 1233 of the bottom of the trough

[0035] 124

[0036] Item 125

[0037] Through hole 1251

[0038] Guide plate 126

[0039] Guide hole 1261

[0040] Step surface 1262

[0041] Connector plate 1263

[0042] Positioning component 127

[0043] Positioning post 128

[0044] Head 1281

[0045] 1282 of the pole

[0046] Positioning block 129

[0047] Incline 1291

[0048] Drive component 13

[0049] Support component 14

[0050] Product 15

[0051] Positioning Structure 151

[0052] Positioning hole 152

[0053] Positioning surface 153 Detailed Implementation

[0054] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0055] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0056] 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. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0057] The following describes some embodiments of this application in detail. Unless otherwise specified, the embodiments and features described below can be combined with each other.

[0058] Please see Figures 1 to 8As shown, this embodiment provides a pressing mold 1, including an upper mold assembly 11 and a lower mold assembly 12, which are used to press a product 15. The lower mold assembly 12 includes a base plate 121, a lower template 122, a movable member 125, and a positioning member 127. The lower template 122 is spaced apart from the base plate 121 and is used to place the product 15. The movable member 125 is movably disposed between the base plate 121 and the lower template 122. The positioning member 127 is connected to the movable member 125 and protrudes from the movable member 125 toward the lower template 122. The movable member 125 is used to drive the positioning member 127 to move. The positioning member 127 can move to a position that abuts against the product 15 to position the product 15, or move to a position away from the product 15 to demold the product 15.

[0059] In the prior art, the positioning accuracy of the product 15 is not high or positioning is not considered when it is ejected from the mold. The product 15 shakes up and down when ejected, or it wobbles left and right after being ejected from the ejection mechanism. The product 15 deviates from its original fixed position, resulting in an unbalanced force on the ejected product 15. This makes it easy for the product 15 to scratch or be pulled by the mold, causing damage to the product 15. Compared with the prior art, in this embodiment, the positioning member 127 of the pressing mold 1 protrudes from the movable member 125 toward the lower template 122. When the pressing mold 1 is pressing, the movable member 125 drives the positioning member 127 to move toward the product 15, so that the positioning member 127 abuts against the product 15 to position the product 15. After the pressing mold 1 completes the pressing, the movable member 125 drives the positioning member 127 away from the product 15, so that the positioning member 127 separates from the product 15 and allows the product 15 to be demolded. This arrangement allows the positioning member 127 to both position the product 15 and demold the product 15. Meanwhile, when the positioning component 127 abuts against or separates from the product 15, the product 15 is always positioned on the lower template 122, so that the position of the product 15 remains basically unchanged. Therefore, the product 15 is balanced by the supporting force of the lower template 122, so as to reduce the product 15 being pulled by the pressing mold 1 or the product 15 structure being damaged.

[0060] Please combine Figure 1 As shown, in this embodiment, the pressing mold 1 is detachably fixed to the pressing equipment (not shown). The upper mold assembly 11 includes an upper template 111, which is connected to the upper side of the pressing equipment. The bottom plate 121 is connected to the lower side of the pressing equipment. The lower template 122 is fixed above the bottom plate 121. The product 15 is placed on the lower template 122. The upper template 111 and the lower template 122 are close to each other to press the product 15.

[0061] Product 15 (e.g., computer casing, mobile phone, automotive parts, etc.) comprises multiple parts, which are bonded together with adhesive, and pressing mold 1 is used to hot press product 15.

[0062] Please combine Figure 2 and Figure 3 As shown, in one embodiment, the lower template 122 includes a positioning part 123, and the product 15 includes a positioning structure 151. The positioning structure 151 and the positioning part 123 cooperate with each other to fix the product 15 on the lower template 122. In this embodiment, the positioning part 123 includes a groove 1231 that is recessed downward from one side surface of the lower template 122 toward the upper template 111, and the positioning member 127 is disposed in the groove 1231.

[0063] In this embodiment, the positioning structure 151 of product 15 fits into the groove 1231. The groove 1231 is used to limit the horizontal displacement of product 15, thereby improving the horizontal positioning accuracy of product 15 on the lower template 122. When product 15 separates from the positioning member 127 for demolding, the positioning structure 151 of product 15 still fits into the groove 1231, which helps to reduce the horizontal displacement between product 15 and lower template 122, reduce uneven horizontal force on product 15, and thus reduce damage to product 15.

[0064] In one embodiment, the positioning part 123 further includes a through hole 1232, which is formed on the bottom surface 1233 of the groove 1231, and the positioning member 127 is movably disposed in the through hole 1232.

[0065] In this embodiment, the positioning member 127 is fitted into the through hole 1232. The positioning member 127 abuts against or moves away from the positioning structure 151 of the product 15 along the extension direction of the through hole 1232 to improve the horizontal positioning accuracy of the positioning member 127, thereby improving the positioning accuracy of the product 15 and the lower template 122. During hot pressing, the positioning member 127 abuts against the positioning structure 151 of the product 15 to position the product 15. After hot pressing is completed, the positioning member 127 moves away from the product 15, and the sidewall of the groove 1231 cooperates with the positioning structure 151 of the product 15 to position the product 15. This helps to maintain the positional accuracy of the product 15 throughout the hot pressing process, reduces the displacement between the product 15 and the lower template 122, and thus reduces the risk of the product 15 being pulled or damaged by the lower template 122.

[0066] In one embodiment, the lower template 122 further includes a receiving portion 124, and multiple positioning portions 123 are provided. These positioning portions 123 are distributed within the receiving portion 124, and the receiving portion 124 is in contact with the surface of the product 15. In this embodiment, the receiving portion 124 is located on the side of the lower template 122 near the upper template 111. The shape of the receiving portion 124 conforms to the surface of the product 15, and it is used to place the product 15 and provide coarse positioning for the product 15. Depending on the position of the positioning structure 151 of the product 15, the surface of the receiving portion 124 is recessed downwards to form a groove 1231. Multiple grooves 1231 are provided, and they are respectively located in the middle or at the periphery of the receiving portion 124 to improve the positioning accuracy of the positioning portion 123 for the product 15. Correspondingly, multiple through holes 1232 are provided, and multiple positioning elements 127 are respectively provided in the through holes 1232. The positioning elements 127 abut against the positioning structure 151 of the product 15 for fine positioning of the product 15.

[0067] In this embodiment, the receiving portion 124 is a plane or a curved surface, and the receiving portion 124 is in contact with the surface of the product 15. The receiving portion 124 is used to maintain the position of the product 15 in the height direction. After hot pressing, the positioning member 127 moves away from the product 15, and the positioning member 127 drives the positioning structure 151 to apply a downward force to the product 15. The receiving portion 124 provides a supporting force to the product 15 to balance the pulling force applied to the product 15 by the positioning member 127, which is beneficial to the force balance of the product 15 during demolding and reduces the deformation or damage to the surface of the product 15.

[0068] Please combine Figures 4 to 6 As shown, in one embodiment, the positioning structure 151 of product 15 includes a positioning hole 152. The positioning member 127 includes a positioning post 128, which includes a head 1281 that extends to product 15 and engages with the positioning hole 152.

[0069] In this embodiment, the positioning post 128 further includes a rod 1282, and the head 1281 is connected to the rod 1282 along the length direction. The diameter of the rod 1282 is larger than the diameter of the head 1281. Therefore, the strength of the rod 1282 is greater than the strength of the head 1281. This arrangement is beneficial for the movable part 125 to drive the positioning post 128 to move, and avoids the positioning post 128 from breaking under stress during movement.

[0070] The circumferential surface of the head 1281 fits into the surface of the positioning hole 152 of the product 15, which helps to improve the positioning accuracy of the positioning post 128 for the product 15.

[0071] The head 1281 and the rod 1282 are disposed in the through hole 1232, with the head 1281 extending from the through hole 1232 to the groove 1231. The end of the rod 1282 away from the head 1281 is connected to the movable member 125. The movable member 125 drives the rod 1282 to move up and down in the through hole 1232, so that the head 1281 abuts against the positioning hole 152 of the product 15 to position the product 15, or moves the head 1281 away from the product 15 to demold the product 15.

[0072] Please combine Figure 7 and Figure 8 As shown, in one embodiment, the positioning structure 151 of product 15 further includes a positioning surface 153, which is bent toward the positioning hole 152. The positioning member 127 further includes a positioning block 129, which includes an inclined surface 1291 that fits against the positioning surface 153.

[0073] In this embodiment, the middle part of product 15 is flat, and the periphery of product 15 is inclined 1291. Therefore, when product 15 is placed on the lower template 122, product 15 is partially wrapped around the lower template 122. A positioning surface 153 is provided at the periphery of product 15, and a positioning block 129 is correspondingly provided at the position of the lower template 122 near the positioning surface 153 of product 15 to improve the positioning accuracy of product 15. During hot pressing, the positioning post 128 abuts against the middle area of ​​product 15, and the positioning block 129 abuts against the periphery of product 15. The positioning post 128 and the positioning block 129 cooperate to position product 15 to improve the overall positioning accuracy of product 15. After hot pressing is completed, the positioning block 129 moves away from product 15. At this time, the periphery of product 15 is suspended to release the wrapping of product 15 around the lower template 122. This helps to reduce the damage to the periphery of product 15 caused by the lower template 122.

[0074] like Figure 5 and Figure 6 As shown, in one embodiment, the movable member 125 includes a guide plate 126 with a guide hole 1261, and a positioning member 127 is accommodated in the guide hole 1261. The lower template 122 has a through hole 1232 corresponding to the guide hole 1261, and the positioning member 127 extends toward the through hole 1232. The guide plate 126 is located on the side of the lower template 122 away from the product 15, and the guide plate 126 is in separable contact with the lower template 122. The guide plate 126 is connected to the rod portion 1282 of the positioning member 127, and the rod portion 1282 extends from the guide hole 1261 toward the through hole 1232.

[0075] In this embodiment, the guide plate 126 is used to guide the positioning member 127 so that the positioning member 127 extends toward the lower template 122. The axis of the through hole 1232 is concentric with that of the guide hole 1261, so the positioning member 127 can move up and down along the length direction of the through hole 1232. This arrangement helps to improve the positioning accuracy of the positioning member 127.

[0076] In one embodiment, the inner surface of the guide hole 1261 has a stepped surface 1262 extending radially, and the end of the positioning member 127 away from the lower template 122 corresponds to and abuts against the stepped surface 1262.

[0077] In this embodiment, after hot pressing is completed, the guide plate 126 moves away from the lower template 122, so that the step surface 1262 abuts against the positioning member 127 to separate the positioning member 127 from the product 15.

[0078] The movable component 125 also includes a connecting plate 1263, which is located on the side of the guide plate 126 away from the lower template 122. The connecting plate 1263 is connected to the guide plate 126 along the thickness direction. The connecting plate 1263 is separably abutted against the base plate 121, allowing the movable component 125 to move to a position away from the lower template 122 and then stop. The connecting plate 1263 is fitted with the end of the positioning component 127 away from the lower template 122, so that the positioning component 127 is clamped between the step surface 1262 and the connecting plate 1263. This arrangement allows the movable component 125 to drive the connecting component to move.

[0079] In other embodiments, the end of the positioning member 127 away from the lower template 122 may also be threadedly connected to the connecting plate 1263. This application is not limited thereto.

[0080] In one embodiment, the lower mold assembly 12 further includes a driving member 13, which is connected to the movable member 125 and the base plate 121 respectively. The driving member 13 is used to drive the movable member 125 away from or towards the base plate 121. In this embodiment, the driving member 13 is connected to the connecting plate 1263, and the driving member 13 drives the connecting plate 1263 and the guide plate 126 to move up and down together.

[0081] In this embodiment, the driving component 13 is a driving cylinder. Multiple driving cylinders are evenly distributed around the periphery of the product 15. The multiple driving cylinders are connected to the periphery of the connecting plate 1263 and move synchronously to drive the movable component 125 to move smoothly, so that the positioning component 127 can smoothly abut against or move away from the product 15.

[0082] In other embodiments, the drive element 13 may also be a motor, but this application is not limited thereto.

[0083] In one embodiment, the lower mold assembly 12 further includes a support member 14, which is supported between the base plate 121 and the lower template 122.

[0084] In this embodiment, the support member 14 is disposed in the middle region of the base plate 121. The support member 14 is used to support and fix the lower template 122, so that the lower template 122 and the base plate 121 maintain a gap, thereby providing the movable member 125 to be movably disposed between the lower template 122 and the base plate 121. A through hole 1251 may be formed in the middle of the movable member 125, and the support member 14 passes through the through hole 1251 through the movable member 125 and is supported between the base plate 121 and the lower template 122.

[0085] In summary, in this embodiment, the positioning pin 128 and positioning block 129 of the pressing mold 1 protrude from the guide plate 126 toward the lower template 122. During the hot pressing of the pressing mold 1, the movable part 125 drives the positioning pin 128 to move toward the center of the product 15, and the movable part 125 drives the positioning block 129 to move toward the periphery of the product 15, so that the positioning part 127 accurately holds and positions the product 15. After the pressing mold 1 completes the hot pressing, the movable part 125 drives the positioning pin 128 and positioning block 129 away from the product 15, so that the positioning pin 128 and positioning block 129 are smoothly separated from the product 15, thereby reducing damage to the product 15 when demolding. This arrangement allows the positioning part 127 to both position the product 15 and demold the product 15. Meanwhile, when the positioning component 127 abuts against or separates from the product 15, the product 15 is always contained within the lower template 122, so that the position of the product 15 remains basically unchanged. Therefore, the product 15 is balanced by the supporting force of the lower template 122, so as to reduce the product 15 being pulled by the pressing mold 1 or the product 15 structure being damaged.

[0086] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A pressing mold, comprising an upper mold assembly and a lower mold assembly, the upper mold assembly and the lower mold assembly being used for pressing products, characterized in that, The lower mold assembly includes: Base plate; A lower template is provided at an interval from the base plate, and the lower template is used to place the product. The movable component is movably disposed between the base plate and the lower template; A positioning element is connected to the movable element. The positioning element protrudes from the movable element toward the lower template. The movable element is used to drive the positioning element to move. The positioning element can move to a position that abuts against the product to position the product, or move to a position away from the product to demold the product.

2. The pressing mold according to claim 1, characterized in that: The lower template includes a positioning part, the positioning part includes a groove, the positioning element is disposed in the groove, and the product includes a positioning structure, the positioning structure protrudes toward the groove and cooperates with the positioning element.

3. The pressing mold according to claim 2, characterized in that: The positioning part also includes a through hole, which is formed on the bottom surface of the groove, and the positioning member is movably disposed in the through hole.

4. The pressing mold according to claim 2, characterized in that: The lower template also includes a receiving portion, and multiple positioning portions are provided. The multiple positioning portions are distributed in the receiving portion, and the receiving portion is in contact with the surface of the product.

5. The pressing mold according to claim 2, characterized in that: The positioning element includes a positioning post, the positioning post including a head that extends to the positioning structure of the product.

6. The pressing mold according to claim 2, characterized in that: The positioning component further includes a positioning block, which includes an inclined surface that fits into the positioning structure of the product.

7. The pressing mold according to claim 1, characterized in that: The movable component includes a guide plate with a guide hole, and the positioning component is accommodated in the guide hole. The lower template has a through hole, which corresponds to the guide hole, and the positioning member extends toward the through hole.

8. The pressing mold according to claim 7, characterized in that: The inner surface of the guide hole extends radially with a stepped surface, and the end of the positioning member away from the lower template corresponds to and abuts against the stepped surface.

9. The pressing mold according to claim 1, characterized in that: The lower mold assembly also includes a driving component, which is connected to the movable component and the base plate respectively. The driving component is used to move the movable component away from or towards the base plate.

10. The pressing mold according to claim 1, characterized in that: The lower mold assembly also includes a support member, which is supported between the base plate and the lower mold plate.

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