Combined injection mold insert jig

Abstract

A combined injection molding insert jig is used for assisting in installing a plurality of hardware shafts when plastic products are formed in a mold main body in batches, and comprises a plurality of injection molding channels, and further comprises a channel plate and an insert combination body, the injection molding channels are horizontally distributed on the channel plate in an array mode, and the insert combination body is arranged on the injection molding channels. Each injection molding channel is used for containing at least one part of the corresponding hardware shaft, the insert assembly comprises an insert and a pressing plate, the pressing plate is detachably installed on the insert through a fastener, a plurality of shaft holes are formed in the top of the insert side by side, and the hardware shafts can be inserted into the shaft holes. According to the combined type injection molding insert jig, the hardware shaft is not prone to falling off, batch forming of plastic products can be assisted, therefore, the production efficiency can be improved, and the forming period can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a combined injection molding insert fixture. Background Art

[0002] Injection mold inserts are a technology that organically combines metal parts and plastic parts, and are mainly used in injection molds. This technology combines metal parts and plastic parts into a whole in the injection molding machine. Injection mold inserts play a role of connection and support in the mold, and are usually made of wear-resistant and corrosion-resistant materials such as alloy steel or high-strength aluminum alloy. Since injection molds may wear out during long-term use, and it is costly to replace the entire mold, the use of injection mold inserts can effectively reduce maintenance costs, and only the worn insert part needs to be replaced.

[0003] In the production of vertical injection molding machines, the conventional practice is to place the hardware horizontally in the mold. However, in the production of horizontal injection molding machines, the hardware needs to be placed vertically, which makes it easy for the hardware to fall off. In addition, during conventional production, the mold needs to be opened to remove the inserts, and the inserts can only be installed back into the mold after a single injection molded part is removed from the inserts, which is time-consuming and has low production efficiency. Utility Model Content

[0004] In view of this, a combined injection molding insert jig is provided, which can prevent a hardware shaft from falling off, can assist batch molding to improve production efficiency, and can shorten the molding cycle.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a combined injection molding insert jig, used to assist in inserting multiple hardware shafts when batch forming plastic products in a mold body, including multiple injection molding channels, and also including a channel plate and an insert assembly. The multiple injection molding channels are distributed in a horizontal array on the channel plate, and each of the injection molding channels is used to load at least a portion of a corresponding hardware shaft. The insert assembly includes an insert and a pressure plate, and the pressure plate is detachably mounted on the insert through fasteners. The top of the insert is provided with multiple axial holes side by side for inserting multiple hardware shafts, and the pressure plate has a positioning portion for abutting the hardware shaft.

[0006] Furthermore, a first inclined surface is provided on the bottom side of the hardware shaft, and the positioning portion of the pressure plate is a protruding portion, which corresponds to the position of the first inclined surface and is provided with a second inclined surface combined with the first inclined surface, and the second inclined surface is used to provide support force for the first inclined surface so that the hardware shaft does not fall.

[0007] Furthermore, the shaft hole is a through hole, the direction of the through hole is perpendicular to the top of the insert so as to vertically insert multiple hardware shafts, the length of the hardware shaft is greater than the hole depth of the through hole and the end of the hardware shaft can pass through the through hole.

[0008] Furthermore, a plurality of the axial holes are arranged at equal intervals on the top of the insert.

[0009] Furthermore, it also includes a guide column, which passes through the channel plate from below the injection molding channel. The insert is provided with a guide hole, and each of the guide columns is inserted into a corresponding guide hole so that each of the injection molding channels corresponds to a corresponding hardware axis, and the pressure plate is provided with a guide hole corresponding to the guide column.

[0010] Furthermore, there is at least one guide post and at least one guide hole.

[0011] Furthermore, the length of the pressure plate is equal to the length of the insert, the outer end surface of the pressure plate does not protrude from the end surface of the insert, and the positioning portion of the pressure plate can correspond to the axial holes of all the inserts.

[0012] Furthermore, the pressing plate is embedded in the insert, and the outer end surface of the pressing plate is flush with the outer end surface of the insert.

[0013] Furthermore, it also includes an ejection mechanism, which separates the plastic product from the mold body after the injection molding is completed. The channel plate also has an inlay groove for loading at least a part of the inlay.

[0014] Furthermore, the insert assembly has at least two groups for alternate use during the injection molding cycle.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] First, the combined injection molding insert fixture is provided with a positioning portion on the pressure plate for abutting against the hardware shaft, a first inclined surface is provided on the bottom side of the hardware shaft, and a second inclined surface matching the first inclined surface is provided on the positioning portion of the pressure plate, so that the hardware shaft will not fall under the supporting force provided by the pressure plate.

[0017] Second, the combined injection molding insert jig is provided with a plurality of injection molding channels, each of which corresponds to and is connected with a corresponding hardware shaft, and a plurality of shaft holes are arranged side by side on the top of the insert to insert a plurality of hardware shafts, thereby realizing mass production of plastic products and improving production efficiency.

[0018] Third, the combined injection molding insert jig has at least two sets of insert assemblies that can be used in rotation. After removing one set of insert assemblies from the mold, another set of insert assemblies can be immediately installed to carry out the next cycle of injection molding production. There is no need to wait until the plastic product is removed from the insert assembly before putting it back into the mold, which shortens the molding cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 The utility model is a three-dimensional schematic diagram of the assembly of a combined injection molding insert jig and a mold body.

[0021] Figure 2 The utility model is an exploded schematic diagram of a combined injection molding insert fixture.

[0022] Figure 3 The utility model is a cross-sectional schematic diagram of a combined injection molding insert fixture.

[0023] in,

[0024] 1. Mold body; 2. Plastic product; 3. Hardware shaft; 31. First inclined surface; 4. Injection channel; 5. Channel plate; 6. Insert assembly; 61. Insert; 611. Shaft hole; 62. Press plate; 621. Second inclined surface; 7. Guide column; 8. Guide hole. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0028] See also Figure 1 to Figure 3, showing a combined injection molding insert jig provided by an embodiment of the utility model, which is used to assist in inserting multiple hardware shafts 3 when batch forming plastic products 2 in a mold body 1, including multiple injection molding channels 4, and also including a channel plate 5 and an insert assembly 6, multiple injection molding channels 4 are horizontally arrayed on the channel plate 5, each of the injection molding channels 4 is used to load at least a portion of a corresponding hardware shaft 3, the insert assembly 6 includes an insert 61 and a pressure plate 62, the pressure plate 62 is detachably mounted on the insert 61 by fasteners, and a plurality of shaft holes 611 are arranged side by side on the top of the insert 61 for inserting a plurality of the hardware shafts 3, and the pressure plate 62 has a positioning portion for abutting the hardware shaft 3.

[0029] Specifically, a first inclined surface 31 is provided on the bottom side of the hardware shaft 3, and the positioning portion of the pressure plate 62 is a protruding portion, which corresponds to the position of the first inclined surface 31 and is provided with a second inclined surface 621 combined with the first inclined surface 31, and the second inclined surface 621 is used to provide support force for the first inclined surface 31 so that the hardware shaft 3 does not fall.

[0030] Specifically, the shaft hole 611 is a through hole, the direction of which is perpendicular to the top of the insert 61 so as to vertically insert multiple hardware shafts 3. The length of the hardware shaft 3 is greater than the depth of the through hole and the end of the hardware shaft 3 can pass through the through hole.

[0031] Specifically, the plurality of shaft holes 611 are arranged at equal intervals on the top of the insert 61 .

[0032] Specifically, it also includes a guide column 7, which passes through the channel plate 5 from below the injection channel 4. The insert 61 is provided with a guide hole 8, and each guide column 7 is inserted into a corresponding guide hole 8, so that each injection channel 4 corresponds to a corresponding hardware shaft 3. The guide hole 8 can be a blind hole or a through hole. The pressure plate 62 is provided with a guide hole corresponding to the guide column 7. The guide hole on the pressure plate 62 can be a blind hole or a through hole.

[0033] More specifically, the guide column 7 and the guide hole 8 are each provided with at least one, two are shown in the present embodiment, and more may be provided to facilitate positioning and introduction of the insert 61 .

[0034] Specifically, the length of the pressing plate 62 is equal to the length of the insert 61, the outer end surface of the pressing plate 62 does not protrude from the end surface of the insert 61, and the positioning portion of the pressing plate 62 can correspond to the shaft holes 611 of all the inserts 61. Preferably, the positioning portion of the pressing plate 62 is an inclined portion extending along the entire length of the pressing plate 62.

[0035] Specifically, the pressing plate 62 is embedded in the insert 61 , and the outer end surface of the pressing plate 62 is flush with the outer end surface of the insert 61 .

[0036] Specifically, it also includes an ejection mechanism. After the injection molding is completed, the ejection mechanism separates the plastic product 2 from the mold body 1. The channel plate 5 also has an inlay groove for loading at least a part of the inlay 61.

[0037] Specifically, the insert assembly 6 has at least two groups for alternate use during the injection molding cycle.

[0038] In summary, the combined injection molding insert jig is provided with a positioning portion on the pressure plate 62 for abutting the hardware shaft 3, a first inclined surface 31 is provided on the bottom side of the hardware shaft 3, and a second inclined surface 621 matching the first inclined surface 31 is provided on the positioning portion of the pressure plate 62, so that the hardware shaft 3 will not fall under the support force provided by the pressure plate 62; by providing a plurality of injection molding grooves 4, each injection molding groove 4 corresponds to and is connected with a corresponding hardware shaft 3, and a plurality of axial holes 611 are arranged side by side on the top of the insert 61 for inserting a plurality of hardware shafts 3, so that mass production of plastic products 2 can be achieved and production efficiency can be improved; there are at least two groups of insert assemblies 6 that can be used in rotation, and one group of insert assemblies 6 can be removed from the mold and then another group of insert assemblies 6 can be immediately installed to carry out the next cycle of injection molding production, without having to wait until the plastic product 2 is removed from the insert assembly 6 before putting it back into the mold, thereby shortening the molding cycle.

[0039] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A combined injection molding insert jig, used to assist in inserting multiple hardware shafts when batch forming plastic products in a mold body, including multiple injection molding channels, characterized in that: It also includes a channel plate and an insert assembly, wherein a plurality of injection-molded channels are distributed in a horizontal array on the channel plate, and each of the injection-molded channels is used to accommodate at least a portion of a corresponding hardware shaft. The insert assembly includes an insert and a pressure plate, and the pressure plate is detachably mounted on the insert via fasteners. A plurality of axial holes are arranged side by side on the top of the insert for inserting a plurality of the hardware shafts, and the pressure plate has a positioning portion for abutting against the hardware shaft.

2. A combined injection molding insert jig according to claim 1, characterized in that: A first inclined surface is provided on the bottom side of the hardware shaft, and the positioning portion of the pressure plate is a protruding portion. The protruding portion corresponds to the position of the first inclined surface and is provided with a second inclined surface combined with the first inclined surface. The second inclined surface is used to provide support force for the first inclined surface so that the hardware shaft does not fall.

3. The combined injection molding insert jig according to claim 1, characterized in that: The shaft hole is a through hole, and the direction of the through hole is perpendicular to the top of the insert so as to vertically insert multiple hardware shafts. The length of the hardware shaft is greater than the hole depth of the through hole and enables the end of the hardware shaft to pass through the through hole.

4. The combined injection molding insert jig according to claim 1, characterized in that: A plurality of the axial holes are arranged at equal intervals on the top of the insert.

5. The combined injection molding insert jig according to claim 1, characterized in that: It also includes a guide column, which passes through the channel plate from below the injection molding channel. The insert is provided with a guide hole. Each of the guide columns is inserted into a corresponding guide hole so that each of the injection molding channels corresponds to a corresponding hardware axis. The pressure plate is provided with a guide hole corresponding to the guide column.

6. The combined injection molding insert jig according to claim 5, characterized in that: The guide post and the guide hole are each provided with at least one.

7. The combined injection molding insert jig according to claim 1, characterized in that: The length of the pressure plate is equal to the length of the insert, the outer end surface of the pressure plate does not protrude from the end surface of the insert, and the positioning portion of the pressure plate can correspond to the axial holes of all the inserts.

8. The combined injection molding insert jig according to claim 1, characterized in that: The pressing plate is embedded in the insert, and the outer end surface of the pressing plate is flush with the outer end surface of the insert.

9. The combined injection molding insert jig according to claim 1, characterized in that: It also includes an ejection mechanism, which separates the plastic product from the mold body after injection molding. The channel plate also has an inlay groove for loading at least a partial inlay.

10. The combined injection molding insert jig according to claim 1, characterized in that: The insert assembly has at least two groups for alternate use during the injection molding cycle.

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