Die

Abstract

The invention relates to a mold. The mold comprises a bottom plate, a lower ejector plate, an ejector pin, an upper ejector plate, a male mold plate and a detachable module, the lower ejector plate is located on one side of the bottom plate. And one end of the thimble abuts against one side of the lower thimble plate away from the bottom plate. The upper ejector plate is located on the side, away from the bottom plate, of the lower ejector plate, and the ejector penetrates through the upper ejector plate to position the ejector. The male mold plate is arranged on the upper ejector plate, and the ejector penetrates into the male mold plate and is configured to penetrate out by the maximum length from the side, away from the upper ejector plate, of the male mold plate in the first axial direction. And the detachable module is positioned between the bottom plate and the lower ejector plate. The detachable module has a plate thickness in the first axial direction, and the plate thickness is larger than the sum of the thickness of the male mold plate, the thickness of the upper ejector plate and the maximum length. According to the die, the ejector pins can be replaced or added under the condition that the whole set of die is not disassembled, so that time is saved, and production efficiency is improved.

Description

Technical Field

[0001] This disclosure relates to a mold. More specifically, this disclosure relates to a mold for plastic injection molding. Background Technology

[0002] In the design of traditional two-plate molds, the bottom plate of the mold is in direct contact with the lower ejector plate. This means that when the mold is being tested or products are being produced, the entire mold assembly often needs to be disassembled if ejector pins need to be replaced or added. This is not only time-consuming but also reduces production efficiency.

[0003] Therefore, a mold that can solve the above problems is needed. Summary of the Invention

[0004] This disclosure relates to a mold, including a base plate, a lower ejector plate, ejector pins, an upper ejector plate, a male mold plate, and a detachable module. The lower ejector plate is located on one side of the base plate. One end of the ejector pin abuts against the side of the lower ejector plate away from the base plate. The upper ejector plate is located on the side of the lower ejector plate away from the base plate and is configured to allow the ejector pin to penetrate and position the ejector pin. The male mold plate is disposed on the upper ejector plate, and the ejector pin penetrates the male mold plate and is configured to extend a maximum length from the side of the male mold plate away from the upper ejector plate along a first axial direction. The detachable module is located between the base plate and the lower ejector plate. The detachable module has a thickness in the first axial direction, which is greater than the sum of the thickness of the male mold plate, the thickness of the upper ejector plate, and the maximum length.

[0005] In one embodiment of this disclosure, the mold further includes a first mold foot and a second mold foot that support and contact the male mold plate and the base plate. A detachable module is located between the first mold foot and the second mold foot.

[0006] In one embodiment of this disclosure, the detachable module further includes a fixing portion. The fixing portion extends from the surface of the detachable module near the base plate toward the base plate and is configured to be fixed to the base plate.

[0007] In one embodiment of this disclosure, the base plate also has a locking groove corresponding to the fixing part.

[0008] In one embodiment of this disclosure, the fixing part further has a through hole penetrating the fixing part, and the engaging groove further has a fixing hole. The through hole and the fixing hole are aligned in the second axis.

[0009] In one embodiment of this disclosure, the detachable module also has a recess. The recess is located on the side surface of the detachable module and is configured to engage a hook.

[0010] In one embodiment of this disclosure, the detachable module further includes a first side arm and a second side arm. The first side arm and the second side arm extend along a second axial direction.

[0011] In one embodiment of this disclosure, the mold further includes a support column supported between the male mold plate and the base plate. A gap exists between the first side arm and the second side arm. The detachable module is configured to move along a second axial direction relative to the surface of the base plate, causing the support column to move relative to the detachable module along the gap.

[0012] In one embodiment of this disclosure, the detachable module presents a U-shape when viewed from above.

[0013] In one embodiment of this disclosure, the detachable module is a solid, single-unit structure.

[0014] In summary, the mold disclosed herein allows for the replacement or addition of ejector pins without disassembling the entire mold assembly, thereby improving mold production efficiency by saving time and labor costs associated with replacing or adding ejector pins. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a mold according to one embodiment of the present disclosure.

[0016] Figure 2 This is a schematic diagram illustrating the demolding process according to one embodiment of the present disclosure.

[0017] Figure 3 This is a schematic diagram of a detachable module and base plate according to one embodiment of the present disclosure.

[0018] Figure 4 This is a schematic diagram illustrating the replacement or addition of ejector pins in a mold according to one embodiment of this disclosure.

[0019] Explanation of reference numerals in the attached figures

[0020] 10: Mold

[0021] 100: Detachable module

[0022] 110: Base Plate

[0023] 1001: Side surface

[0024] 1003, 1105: Surface

[0025] 1011: Fixing part

[0026] 1013: Through hole

[0027] 1015: concave part

[0028] 1021: First Side Arm

[0029] 1022: Second side arm

[0030] 1023: Gap

[0031] 1101: Snap-fit ​​groove

[0032] 1103: Fixing hole

[0033] 111: Support column

[0034] 120: Lower ejector plate

[0035] 1201, 1202: Threshold

[0036] 1211,1213: End

[0037] 123: Reset pin

[0038] 125: Positioning pin

[0039] 130: Upper ejector plate

[0040] 140: Public Template

[0041] 141: Male mold and female mold

[0042] 151: First mold foot

[0043] 152: Second mold foot

[0044] 160: Master Template

[0045] 161: Mother mold kernel

[0046] 170: Fixing plate

[0047] 180: Injection runner bushing

[0048] 181:Note

[0049] 190: Positioning ring

[0050] 200: Products

[0051] A1: First Axial Direction

[0052] A2: Second Axial Direction

[0053] A3: Third Axis

[0054] d1: Distance

[0055] L1: Maximum length

[0056] T1: plate thickness Detailed Implementation

[0057] The following disclosure provides numerous different embodiments or instances for implementing various features of the provided subject matter. Specific examples of components and arrangements are described below to simplify this disclosure. Of course, these are merely examples and are not intended to be limiting. For instance, in the following description, the formation of a first feature on or on a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features may be formed between the first and second features such that the first and second features are not in direct contact. Furthermore, element symbols and / or letters may be repeated in various instances in this disclosure. This repetition is for simplicity and clarity and does not in itself represent a relationship between the various embodiments and / or configurations discussed.

[0058] Additionally, for simplicity, spatial relative terms such as “below,” “under,” “lower,” “above,” “upper,” and similar terms are used herein to describe the relationship between one element or feature and another (other) element or feature, as shown in the figures. These spatial relative terms are intended to cover different orientations of elements in use or operation, in addition to those depicted in the figures. Devices may be oriented in other ways (rotated 90 degrees or otherwise), and the spatial relative descriptive terms used herein shall be interpreted accordingly.

[0059] To enable readers to clearly understand the interrelationships and orientations of the various components, coordinate axes are marked in the attached diagram, namely the first axis A1, the second axis A2, and the third axis A3.

[0060] Please see Figure 1 , Figure 1 This is a schematic diagram of a mold 10 according to one embodiment of the present disclosure, shown in cross-section on the plane formed by the first axial direction A1 and the third axial direction A3. Figure 1 In the mold 10, there are a base plate 110, a detachable module 100, a lower ejector plate 120, an upper ejector plate 130, a male template 140, a female template 160, a fixing plate 170, and a positioning ring 190.

[0061] In some embodiments, the lower ejector plate 120 is located on one side of the base plate 110, the upper ejector plate 130 is located on the side of the lower ejector plate 120 away from the base plate 110, the male template 140 is disposed on the upper ejector plate 130, and the female template 160, the fixing plate 170 and the positioning ring 190 are sequentially disposed on the male template 140, and the detachable module 100 is located between the base plate 110 and the lower ejector plate 120.

[0062] In some embodiments, the male mold plate 140 includes a male mold core 141, and the female mold plate 160 includes a female mold core 161. After the male mold core 141 and the female mold core 161 are joined, a space with a specific shape is formed at the contact surface. This space is used for injecting plastic and forming the product 200. The male mold core 141 and the female mold core 161 can cooperate with each other in any way to form the shape of the product 200, and are not limited to this. Figure 1 The male mold core 141 is convex and the female mold core 161 is concave, or the male mold core 141 is concave and the female mold core 161 is convex.

[0063] In some embodiments, the mold 10 includes a runner 181 and a runner bushing 180 that penetrate the fixing plate 170, the female mold plate 160, and the female mold core 161. The runner 181 is used to inject molten plastic into the space formed by the male mold core 141 and the female mold core 161, and after cooling, form the product 200.

[0064] In some embodiments, mold 10 includes an ejector pin 1201. One end 1211 of the ejector pin 1201 abuts against the side of the lower ejector plate 120 away from the base plate 110. An upper ejector plate 130 is configured to allow the ejector pin 1201 to penetrate and position it. The ejector pin 1201 is inserted into a male mold plate 140 and configured to exit from the side of the male mold plate 140 away from the upper ejector plate 130 along a first axial direction A1. In some embodiments, the other end 1213 of the ejector pin 1201 penetrates the male mold core 141 and is flush with the contact surface between the male mold core 141 and the product 200.

[0065] In some embodiments, the side of the upper ejector plate 130 facing the lower ejector plate 120 may have a plurality of holes (not shown) for mounting ejector pins 1201. After the ejector pins 1201 are mounted and positioned by penetrating the upper ejector plate 130, the ejector pins 1201 are fixed by locking the lower ejector plate 120 to the upper ejector plate 130.

[0066] In some embodiments, the mold 10 includes a first mold foot 151 and a second mold foot 152 that support and contact the male mold plate 140 and the base plate 110. Generally, the first mold foot 151 and the second mold foot 152 are solid columns or blocks located on the left and right sides of the mold 10 to support the entire mold assembly. In some embodiments, a detachable module 100, a lower ejector plate 120, and an upper ejector plate 130 are located between the first mold foot 151 and the second mold foot 152.

[0067] In some embodiments, the mold 10 includes a support column 111 supported between the male mold plate 140 and the base plate 110. The support column 111 passes through the lower ejector plate 120 and the upper ejector plate 130 to assist in supporting the weight of the male mold plate 140 and other components such as the upper female mold plate 160, the fixing plate 170, and the positioning ring 190. In some embodiments, the support column 111 is located between the first mold foot 151 and the second mold foot 152.

[0068] In some embodiments, the mold 10 includes a reset pin 123. The reset pin 123 is used to return the upper ejector plate 130 and the lower ejector plate 120, which have moved upward along the first axis A1, to their previous positions. In some embodiments, the reset pin 123 may be a spring structure or a reset structure commonly found in molds.

[0069] In some embodiments, the mold 10 includes a locating pin 125. The locating pin 125 is used to limit the upward movement of the upper ejector plate 130 and the lower ejector plate 120 along the first axis A1. In some embodiments, when the lower ejector plate 120 and the upper ejector plate 130 remain in their original positions, there is a distance d1 between the locating pin 125 and the male mold plate 140, which is the maximum upward movement of the upper ejector plate 130 and the lower ejector plate 120 along the first axis A1.

[0070] Please see Figure 2 , Figure 2 This is a schematic diagram of demolding according to one embodiment of the present disclosure, shown in cross-section on the plane formed by the first axis A1 and the third axis A3. Normally, when a product 200 is formed in the mold 10 via plastic injection, the demolding process is performed after the product 200 cools.

[0071] In some embodiments, the product 200 can be ejected by moving the lower ejector plate 120 and the upper ejector plate 130 upward along the first axis A1 so that the ejector pin 1201 penetrates the male mold core 141.

[0072] In some embodiments, the ejector pin 1201 is configured to extend a maximum length L1 from the male template 140 away from the upper ejector plate 130 along a first axial direction A1.

[0073] In some embodiments, the maximum length L1 is the ejection depth to which the ejector pin 1201 ejects the product 200 from the mold. The maximum length L1 is affected by the distance d1 between the locating pin 125 and the male mold plate 140. If the upper ejector plate 130 and the lower ejector plate 120 are in their original positions, and one end 1213 of the ejector pin 1201 is flush with the contact surface between the male mold core 141 and the product 200, then the maximum upward movement of the upper ejector plate 130 and the lower ejector plate 120 along the first axis A1 is also the maximum length L1 by which the ejector pin 1201 ejects the product 200.

[0074] Please see Figure 3 , Figure 3 This is a schematic diagram of a detachable module 100 and a base plate 110 according to one embodiment of the present disclosure.

[0075] In some embodiments, the detachable module 100 has a plate thickness T1 along the first axial direction A1. The plate thickness T1 is greater than the sum of the thickness of the male template 140, the thickness of the upper ejector plate 130, and the maximum length L1. Therefore, when the mold 10 is being tested or products are being manufactured, if it is necessary to replace or add ejector pins 1201, the detachable module 100 has sufficient thickness to provide enough space between the upper ejector plate 130 and the base plate 110 for replacing or adding ejector pins after removing the detachable module 100 and the lower ejector plate 120. Therefore, the mold 10 disclosed herein only requires the removal of the detachable module 100 and the lower ejector plate 120 to perform the replacement or addition of ejector pins 1201 without disassembling the entire mold assembly.

[0076] In some embodiments, the detachable module 100 has a fixing portion 1011. The fixing portion 1011 extends from the surface 1003 of the detachable module 100 near the base plate 110 toward the base plate 110 and is configured to be fixed to the base plate 110. In some embodiments, the fixing portion 1011 has a through hole 1013 penetrating the fixing portion 1011.

[0077] In some embodiments, the base plate 110 has a locking groove 1101 corresponding to the fixing part 1011 of the detachable module 100. The locking groove 1101 has a fixing hole 1103, configured to be fixed to the through hole 1013 corresponding to the fixing part 1011. In some embodiments, the through hole 1013 and the fixing hole 1103 are aligned in the second axial direction A2.

[0078] In some embodiments, the fixing hole 1103 may be a threaded hole through which a fastener (e.g., a screw) passes through the through hole 1013 and locks into the fixing hole 1103 to fix the detachable module 100 to the base plate 110.

[0079] In some embodiments, the detachable module 100 has a recess 1015. The recess 1015 is located on the side surface 1001 of the detachable module 100 and is configured to engage a hook. In some embodiments, since the detachable module 100 has a certain weight, the recess 1015 provides a hook engagement point, allowing the detachable module 100 to be removed mechanically. In some embodiments, the recess 1015 can be located anywhere on the detachable module 100, provided it does not affect the structural strength of the detachable module 100.

[0080] In some embodiments, the detachable module 100 has a first side arm 1021 and a second side arm 1022. The first side arm 1021 and the second side arm 1022 extend along a second axis A2, and a gap 1023 is formed between the first side arm 1021 and the second side arm 1022. The detachable module 100 is configured to move relative to the surface 1105 of the base plate 110 along the second axis A2, causing the support column 111 (see accompanying reference) to... Figure 1 It moves along the gap 1023 relative to the detachable module 100.

[0081] In some embodiments, when the detachable module 100 is moved, the gap 1023 between the first side arm 1021 and the second side arm 1022 can be used to avoid the support column 111, or other components connected to the male template 140, the upper ejector plate 130, and the lower ejector plate 120 that may affect the movement of the detachable module 100. In some embodiments, these components that may affect the movement of the detachable module 100 may be the reset pin 123. In some embodiments, without affecting the structural strength of the detachable module 100, a larger gap 1023 between the first side arm 1021 and the second side arm 1022 can save more material in manufacturing the detachable module 100, thereby reducing costs.

[0082] In some embodiments, the detachable module 100 presents a U-shape when viewed from above.

[0083] In some embodiments, the detachable module 100 is a solid, single-piece structure. In some embodiments, the detachable module 100 can be a one-piece molded metal block. In some embodiments, as long as it does not affect the structural strength of the detachable module 100, the detachable module 100 can be a non-solid block with an internal honeycomb structure.

[0084] Please see Figure 4 , Figure 4 This is a schematic diagram illustrating the replacement or addition of ejector pins in a mold 10 according to one embodiment of this disclosure. In general, during mold testing or product production, situations may arise such as unsmooth demolding, insufficient ejector pin quantity, or the need to adjust ejector pin positions, thus requiring the replacement or addition of ejector pins.

[0085] exist Figure 4 (Please refer to the accompanying text) Figure 3 First, the upper ejector plate 130 and the lower ejector plate 120 are moved upward along the first axis A1 to their maximum stroke (i.e., a distance d1, so that the locating pin 125 abuts against the male template 140). Next, the fasteners between the detachable module 100 and the base plate 110 are loosened, allowing the detachable module 100 to move relative to the base plate 110. A hook is then engaged with the recess 1015 of the detachable module 100 using machinery (e.g., a crane or gantry crane) to lift the detachable module 100. Then, the lower ejector plate 120 is removed, exposing the portion of the upper ejector plate 130 where the ejector pins 1201 are mounted, allowing for the replacement of the ejector pins 1201 or the addition of ejector pins 1202. After completion, the lower ejector plate 120 and the detachable module 100 are reinstalled sequentially, allowing the mold 10 to continue production.

[0086] In summary, the mold disclosed in this embodiment allows for the replacement or addition of ejector pins without disassembling the entire mold assembly, thereby improving the mold's production efficiency by saving time and labor costs associated with replacing or adding ejector pins.

[0087] The foregoing has outlined the features of several embodiments to enable those skilled in the art to better understand the nature of this disclosure. Those skilled in the art should understand that they can readily use this disclosure as a basis for designing or modifying other processes and structures to achieve the same purpose and / or attain the same advantages of the embodiments described herein. Those skilled in the art should also recognize that these equivalent constructions do not depart from the spirit and scope of this disclosure, and that various changes, substitutions, and replacements can be made herein without departing from the spirit and scope of this disclosure.

Claims

1. A mold, characterized in that, include: Base plate; The lower ejector plate is located on one side of the base plate; The ejector pin has one end abutting against the side of the lower ejector plate away from the base plate; An upper ejector plate is located on the side of the lower ejector plate away from the base plate and is configured to allow the ejector pin to penetrate and position the ejector pin. A male template is disposed on the upper ejector plate, wherein the ejector pin passes through the male template and is configured to extend out a maximum length along a first axis from the side of the male template away from the upper ejector plate; as well as A detachable module is located between the base plate and the lower ejector plate; The detachable module has a plate thickness in the first axial direction, and the plate thickness is greater than the sum of the thickness of the male template, the thickness of the upper ejector plate, and the maximum length.

2. The mold as described in claim 1, characterized in that, The mold further includes a first mold foot and a second mold foot that support and contact the male mold plate and the base plate, wherein the detachable module is located between the first mold foot and the second mold foot.

3. The mold as described in claim 1, characterized in that, The detachable module also has a fixing part that extends from a surface of the detachable module near the base plate toward the base plate and is configured to be fixed to the base plate.

4. The mold as described in claim 3, characterized in that, The base plate also has a locking groove corresponding to the fixing part.

5. The mold as described in claim 4, characterized in that, The fixing part also has a through hole penetrating the fixing part, and the engaging groove also has a fixing hole, wherein the through hole and the fixing hole are aligned in the second axis.

6. The mold as described in claim 1, characterized in that, The detachable module also has a recess located on one side surface of the detachable module, configured to connect a hook.

7. The mold as described in claim 1, characterized in that, The detachable module also has a first side arm and a second side arm, which extend along a second axis.

8. The mold as described in claim 7, characterized in that, The mold further includes a support column supported between the male template and the base plate, wherein there is a gap between the first side arm and the second side arm, and the detachable module is configured to move relative to the surface of the base plate along the second axis, causing the support column to move relative to the detachable module along the gap.

9. The mold as described in claim 7, characterized in that, When viewed from above, the detachable module presents a U-shape.

10. The mold as described in claim 1, characterized in that, The detachable module is a solid, single-unit structure.

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