A multi-cavity rapid switching plastic product injection mold

Abstract

The utility model provides a kind of plastic product injection mould of multiple cavity quick switching, including first support seat and second support seat, the four corners of the one side of first support seat facing second support seat are evenly provided with guide rod, all the guide rod is all through second support seat;The opposite surface of first support seat and second support seat is evenly provided with installation limiting chamber. When using, by setting first support seat and second support seat, and setting installation limiting chamber, injection port and limiting installation slot for installing inner cavity mechanism and positioning inner cavity mechanism on the opposite surface of first support seat and second support seat, so that when changing mould, only need to disassemble inner cavity mechanism to change, without disassembling relevant mechanism matched with injection molding machine, and installation limiting chamber, injection port and limiting installation slot cooperate to position inner cavity mechanism completely, so without adjusting the position of inner cavity mechanism, reach the effect that mould can be switched quickly.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a multi-cavity quick-switching injection mold for plastic products. Background Technology

[0002] Plastic injection molding is a method of producing plastic products by injecting molten plastic into a mold under pressure, which then cools and solidifies to obtain various desired plastic parts.

[0003] Injection molding molds are typically two-part structures that can be opened and closed. During the injection process, the two halves are joined together, and after injection, they are separated to demold the product. To improve product quality, the two halves must be installed in the same position to minimize seams.

[0004] Different molds are selected depending on the product style during injection molding. Each time the mold is changed, it needs to be calibrated to ensure that the positions on both sides of the mold are consistent. This process is relatively troublesome and affects production efficiency.

[0005] Therefore, this application proposes a multi-cavity rapid switching injection mold for plastic products to improve the efficiency of injection mold switching. Utility Model Content

[0006] In view of the shortcomings of the prior art mentioned above, the purpose of this utility model is to provide a multi-cavity quick-switching injection mold for plastic products, so as to solve the problem of inconvenient mold changing mentioned in the prior art.

[0007] To achieve the above and other related objectives, this utility model provides a plastic product injection mold with rapid switching of multiple cavities, including a first support base and a second support base. Guide rods are provided at the four corners of the side of the first support base facing the second support base, and all the guide rods pass through the second support base.

[0008] The first support base and the second support base are provided with mounting limiting chambers on their opposite sides. All mounting limiting chambers are provided with injection ports at the same end. The injection ports pass through the same end of the first support base and the second support base respectively. All mounting limiting chambers are provided with limiting mounting grooves on both sides with the axis of the injection port as a mirror axis. The limiting mounting grooves are provided with mold fixing holes inside.

[0009] All installation limiting chambers are equipped with internal cavity mechanisms that are fully adapted to the installation limiting chambers. The installation positions of all internal cavity mechanisms are restricted on both sides by the installation limiting chambers and limiting installation grooves, so that the installation positions of the two internal cavity mechanisms match.

[0010] Preferably, all of the inner cavity mechanisms include an inner mold, the surface of which is provided with a cavity for molding plastic;

[0011] A semi-circular injection pipe is provided on one side of the inner mold, which communicates with the cavity in the inner mold, and the injection pipe extends to the injection port;

[0012] The inner mold has symmetrical mounting wings on both sides. The mounting wings can be set inside the limiting mounting groove and fixed by fasteners and mold fixing holes.

[0013] Preferably, a recessed support is provided at the connection between the limiting mounting groove and the mounting limiting chamber;

[0014] The bottom of the mounting wing is supported by a support platform, and the top of the inner mold is flush with the top of the mounting limiting chamber.

[0015] Preferably, the bottom of the limiting mounting groove is provided with a stabilizing groove, and the bottom of the mounting wing is provided with a positioning block, which can be inserted into the stabilizing groove.

[0016] Preferably, the outer surface of the positioning block is in complete contact with the inner wall of the stabilizing groove.

[0017] Preferably, the mounting wing is Z-shaped, the bottom of the higher part of the mounting wing is supported by a support platform, the side of the mounting wing with the positioning block extends downward, and the top of the lower part of the mounting wing is lower than the top of the limiting mounting groove.

[0018] Preferably, the end of the guide rod is provided with a detachable limiting cap, the diameter of which is larger than the diameter of the guide rod.

[0019] Preferably, the outer surface of the guide rod is fitted with an elastic buffer, and the two ends of the elastic buffer abut against the limiting cap and the second support seat, respectively.

[0020] As described above, the multi-cavity rapid switching injection mold for plastic products of this utility model has the following beneficial effects:

[0021] 1. This utility model sets up a first support base and a second support base, and sets up a mounting limiting chamber, an injection port and a limiting mounting groove on the opposite surfaces of the first support base and the second support base for mounting the inner cavity mechanism and positioning the inner cavity mechanism. Therefore, when changing the mold, only the inner cavity mechanism needs to be disassembled for replacement, without disassembling the related mechanisms of the injection molding machine. Moreover, the mounting limiting chamber, injection port and limiting mounting groove work together to completely position the inner cavity mechanism, so there is no need to adjust the position of the inner cavity mechanism, thus achieving the effect of quick mold switching.

[0022] 2. This utility model provides limiting installation grooves on both sides of the installation limiting chamber and installation wings that are compatible with the limiting installation grooves on both sides of the inner mold. This allows the top of the inner mold to be flush with the top of the limiting installation groove when the inner mold is installed. After the first support and the second support are closed, the inner molds on both sides can fit together completely, improving the sealing performance.

[0023] 3. This utility model achieves the effect of aligning the positions of the first and second support seats by setting a guide rod on the first support seat and having the guide rod pass through the second support seat to limit and guide the position of the second support seat, and by attaching an elastic buffer to the outer surface of the guide rod to apply a buffering force to the second support seat, thereby avoiding the second support seat from hitting the limiting cap.

[0024] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0025] Figure 1 The diagram shown is a structural schematic of this utility model.

[0026] Figure 2 The diagram shows the structure of the mold after it is closed.

[0027] Figure 3 The diagram shown is a side view of the structure of this utility model.

[0028] Figure 4 The diagram shown is a structural schematic of the installation and limiting chamber of this utility model.

[0029] Figure 5 The diagram shown is a structural schematic of the internal cavity mechanism of this utility model.

[0030] Component designation explanation:

[0031] 1. First support base; 11. Guide rod; 2. Second support base; 3. Installation and limiting chamber; 31. Injection port; 32. Limiting installation groove; 33. Support platform; 34. Mold fixing hole; 35. Stabilizing groove;

[0032] 4. Internal cavity mechanism; 41. Inner mold; 42. Injection tube; 43. Mounting wing; 44. Positioning block;

[0033] 5. Limiting cap; 6. Elastic buffer. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0035] Please see Figures 1 to 5It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0036] like Figures 1-2 and Figure 4 As shown, this utility model provides a multi-cavity rapid switching injection mold for plastic products, including a first support base 1 and a second support base 2. The first support base 1 and the second support base 2 are respectively connected to the drive device of the injection molding machine, thereby controlling the opening and closing of the first support base 1 and the second support base 2 through the drive device of the injection molding machine. Guide rods 11 are provided at the four corners of the side of the first support base 1 facing the second support base 2. All guide rods 11 pass through the second support base 2, and the installation position and movement direction of the second support base 2 can be guided by the guide rods 11 to keep the positions of the first support base 1 and the second support base 2 in a suitable manner.

[0037] The first support 1 and the second support 2 are provided with installation limiting chambers 3 on their opposite sides. All installation limiting chambers 3 are provided with a filling port 31 at the same end. The filling port 31 passes through the same end of the first support 1 and the second support 2 respectively. When the first support 1 and the second support 2 are closed and in contact, the installation limiting chamber 3 and the filling port 31 can be completely fitted to form a complete chamber and channel.

[0038] Each of the mounting limiting chambers 3 has a limiting mounting groove 32 symmetrically arranged on both sides with the axis of the injection port 31 as a mirror image. The limiting mounting groove 32 contains a mold fixing hole 34. Each mounting limiting chamber 3 has an internal cavity mechanism 4 that is perfectly adapted to it. The mounting positions of all internal cavity mechanisms 4 are restricted on both sides by the mounting limiting chambers 3 and the limiting mounting grooves 32, ensuring that the mounting positions of the two internal cavity mechanisms 4 mounted on the first support 1 and the second support 2 are identical. When the first support 1 and the second support 2 are closed, the two internal cavity mechanisms 4 can fit together completely, forming a complete injection molding chamber.

[0039] like Figure 5As shown in some embodiments, all internal cavity mechanisms 4 of this utility model include an inner mold 41. The surface of the inner mold 41 is provided with a cavity for molding plastic. The shape of the cavity is set according to the requirements, and only a simple drawing is shown in the figure. When opening the mold, only the internal cavity mechanism 4 needs to be processed, which is lighter and more convenient than traditional molds. Moreover, if there is a mistake in opening the mold, only the internal cavity mechanism 4 needs to be replaced, which is less costly than the mistake in traditional molds.

[0040] A semi-circular injection tube 42 is provided on one side of the inner mold 41, which is connected to the cavity in the inner mold 41. The injection tube 42 extends into the injection port 31. During injection molding, the injection port of the injection molding machine cooperates with the injection tube 42 to inject material into the interior of the inner mold 41 for injection molding.

[0041] The inner mold 41 is symmetrically provided with mounting wings 43 on both sides. The mounting wings 43 can be set inside the limiting mounting groove 32 and fixed by fasteners and mold fixing holes 34, so that the mounting position of the inner mold 41 is unique, thereby reducing the adjustment process and improving switching efficiency.

[0042] like Figure 3 and Figure 4 As shown, in some embodiments, a downwardly recessed support platform 33 is provided at the connection between the limiting mounting groove 32 and the mounting limiting chamber 3 of this utility model. The bottom of the mounting wing 43 is supported by the support platform 33, so that when the top of the mounting wing 43 is flush with the top of the inner mold 41, the mounting wing 43 can also be installed inside the limiting mounting groove 32, so that the top of the inner mold 41 is flush with the top of the mounting limiting chamber 3. At this time, when the first support seat 1 and the second support seat 2 are closed, the parting position of the entire mold can be completely closed, improving the sealing performance of the mold.

[0043] like Figures 3-5 As shown, in some embodiments, the bottom of the limiting mounting groove 32 of this utility model is provided with a stabilizing groove 35, and the bottom of the mounting wing 43 is provided with a positioning block 44. The positioning block 44 can be inserted into the stabilizing groove 35. Through the cooperation of the stabilizing groove 35 and the positioning block 44, the mounting position of the mounting wing 43 can be further limited, so as to further improve the accuracy of the mounting position of the inner mold 41.

[0044] like Figure 3 In some embodiments shown, the outer surface of the positioning block 44 of this utility model is completely in contact with the inner wall of the stabilizing groove 35, thereby completely limiting the positioning block 44. Therefore, during the injection molding process, the positioning block 44 and the stabilizing groove 35 cooperate to prevent the inner mold 41 from shifting position.

[0045] like Figure 2 and Figure 5As shown, in some embodiments, the mounting wing 43 of this utility model is Z-shaped. The bottom of the high part of the mounting wing 43 is supported by the support platform 33, and can limit the inner mold 41 with the edge of the inner mold 41, which can prevent the inner mold 41 from sliding left and right. The front and rear ends of the mounting wing 43 cooperate with the inner wall of the limiting mounting groove 32 to prevent the inner mold 41 from sliding back and forth. The side of the mounting wing 43 with the positioning block 44 extends downward, and the top of the low part of the mounting wing 43 is lower than the top of the limiting mounting groove 32. Therefore, when the mounting wing 43 is fixed by fasteners, the end of the fasteners will not exceed the interior of the limiting mounting groove 32. At the same time, when the first support 1 and the second support 2 are closed, the fasteners on both sides will not directly collide.

[0046] like Figures 1-4 As shown, in some embodiments, the end of the guide rod 11 of this invention is provided with a detachable limiting cap 5, the diameter of which is larger than the diameter of the guide rod 11. During normal use, the limiting cap 5 can limit the second support seat 2, preventing the second support seat 2 from detaching from the constraint of the guide rod 11; when it is necessary to disassemble and maintain the second support seat 2, the second support seat 2 can be separated from the guide rod 11 by removing the limiting cap 5.

[0047] like Figure 1 and Figure 2 As shown, in some embodiments, an elastic buffer 6 is sleeved on the outer surface of the guide rod 11 of this utility model. The two ends of the elastic buffer 6 abut against the limiting cap 5 and the second support seat 2, respectively. When the mold needs to be opened after injection molding, the second support seat 2 needs to move towards the limiting cap 5. At this time, the limiting cap 5 will apply a buffering force to the second support seat 2 to prevent the second support seat 2 from moving too much and directly hitting the limiting cap 5, causing damage to the second support seat 2 and the limiting cap 5.

[0048] In summary, the multi-cavity quick-change injection mold for plastic products of this utility model, by setting a first support base 1 and a second support base 2, and setting a mounting limiting chamber 3, an injection port 31 and a limiting mounting groove 32 on the opposite surfaces of the first support base 1 and the second support base 2 for mounting the inner cavity mechanism 4 and positioning the inner cavity mechanism 4, allows for mold replacement by simply disassembling the inner cavity mechanism 4 without disassembling the related mechanisms of the injection molding machine. Furthermore, the mounting limiting chamber 3, the injection port 31 and the limiting mounting groove 32 work together to completely position the inner cavity mechanism 4, thus eliminating the need for position adjustment of the inner cavity mechanism 4 and achieving the effect of quick mold switching.

[0049] This invention provides limiting mounting grooves 32 on both sides of the installation limiting chamber 3 and mounting wings 43 on both sides of the inner mold 41 that are adapted to the limiting mounting grooves 32. This allows the top of the inner mold 41 to be flush with the top of the limiting mounting grooves 32 when the inner mold 41 is installed. After the first support 1 and the second support 2 are closed, the inner molds 41 on both sides can fit together completely, improving the sealing performance.

[0050] This utility model achieves the effect of aligning the positions of the first support 1 and the second support 2 by setting a guide rod 11 on the first support 1 and having the guide rod 11 pass through the second support 2 to limit and guide the position of the second support 2, and by attaching an elastic buffer 6 to the outer surface of the guide rod 11 to apply a buffering force to the second support 2.

[0051] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0052] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A multi-cavity rapid-switching injection mold for plastic products, characterized in that, It includes a first support base (1) and a second support base (2). The first support base (1) has guide rods (11) at each of the four corners of the side facing the second support base (2). All the guide rods (11) pass through the second support base (2). The first support base (1) and the second support base (2) are provided with mounting limiting chambers (3) on their opposite sides. All the mounting limiting chambers (3) are provided with injection ports (31) at the same end. The injection ports (31) pass through the same end of the first support base (1) and the second support base (2). All the mounting limiting chambers (3) are provided with limiting mounting grooves (32) on both sides with the axis of the injection port (31) as a mirror axis. The limiting mounting grooves (32) are provided with mold fixing holes (34) inside. All the installation limiting chambers (3) are provided with an inner cavity mechanism (4) that is fully adapted to the installation limiting chamber (3). The installation positions of all the inner cavity mechanisms (4) are restricted by the installation limiting chamber (3) and the limiting installation groove (32) on both sides, so that the installation positions of the two inner cavity mechanisms (4) match.

2. The multi-cavity rapid switching injection mold for plastic products according to claim 1, characterized in that: All of the aforementioned internal cavity mechanisms (4) include an inner mold (41), the surface of which is provided with a cavity for molding plastic; A semi-circular injection pipe (42) is provided on one side of the inner mold (41) and communicates with the cavity in the inner mold (41). The injection pipe (42) extends into the injection port (31). The inner mold (41) is symmetrically provided with mounting wings (43) on both sides. The mounting wings (43) can be set inside the limiting mounting groove (32) and fixed by fasteners and mold fixing holes (34).

3. The multi-cavity rapid switching injection mold for plastic products according to claim 2, characterized in that: A recessed support (33) is provided at the connection between the limiting installation groove (32) and the installation limiting chamber (3). The bottom of the mounting wing (43) is supported by the support platform (33), and the top of the inner mold (41) is flush with the top of the mounting limiting chamber (3).

4. The multi-cavity rapid switching injection mold for plastic products according to claim 3, characterized in that: The bottom of the limiting mounting groove (32) is provided with a stabilizing groove (35), and the bottom of the mounting wing (43) is provided with a positioning block (44), which can be inserted into the stabilizing groove (35).

5. The multi-cavity rapid switching injection mold for plastic products according to claim 4, characterized in that: The outer surface of the positioning block (44) is completely in contact with the inner wall of the stabilizing groove (35).

6. The multi-cavity rapid switching injection mold for plastic products according to claim 3, characterized in that: The mounting wing (43) is Z-shaped. The bottom of the high part of the mounting wing (43) is supported by the support platform (33). The side of the mounting wing (43) with the positioning block (44) extends downward, and the top of the low part of the mounting wing (43) is lower than the top of the limiting mounting groove (32).

7. The multi-cavity rapid switching injection mold for plastic products according to any one of claims 1-6, characterized in that: The end of the guide rod (11) is provided with a detachable limiting cap (5), the diameter of which is larger than the diameter of the guide rod (11).

8. The multi-cavity rapid switching injection mold for plastic products according to claim 7, characterized in that: The outer surface of the guide rod (11) is fitted with an elastic buffer (6), and the two ends of the elastic buffer (6) abut against the limiting cap (5) and the second support seat (2) respectively.

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