Mould for automatically cutting off large gate of multi-cavity mould

Abstract

The utility model relates to a multi-cavity die edge gate automatic cut-off die which comprises a lower die and an upper die detachably arranged on the lower die, a plurality of upper die cavities are formed in the side, facing the lower die, of the upper die, a plurality of lower die cavities corresponding to the upper die cavities are formed in the side, facing the upper die, of the lower die, and runners for connecting all the lower die cavities are arranged between the lower die cavities. A runner is arranged in the upper die, a sprue gate penetrating through the upper die is formed in the upper die and communicated with the runner, a cutter is arranged at the joint of the runner and the lower die cavity in the lower die in a sliding mode, and the cutter slides into the runner to separate the runner from the lower die cavity. The device has the effect of reducing the influence of material head separation on the water gap quality.

Description

Technical Field

[0001] The present application relates to the field of casting molds, and in particular to a multi-cavity mold with a large water inlet and an automatic cutting-off mold. Background Art

[0002] A casting mold is a tool used to manufacture objects of various shapes and sizes. They are usually made of metal or plastic and have one or more cavities that correspond in shape and size to the object to be manufactured. By pouring molten material (such as metal, plastic or glass) into the mold and waiting for it to cool and solidify, objects of the desired shape can be manufactured. The mold gate refers to the runner part of the mold used to guide the molten plastic into the mold cavity, also known as the feed port or gate.

[0003] After casting and molding in the existing mold, a material head connecting to the product will be formed in the sprue. The material head needs to be cut off from the product later. During the cutting process, if the position of the sprue cutter is too close to the product, the product will be damaged. If the position of the sprue cutter is too far away from the product, a larger sprue will be left. Therefore, the product quality is easily affected when cutting off the material head. Utility Model Content

[0004] In order to reduce the influence of material head separation on the water outlet quality, the present application provides a multi-cavity mold with large water outlet automatic cutting-off mold.

[0005] The present application provides a multi-cavity mold with large water inlet automatic cutting-off mold adopts the following technical solution:

[0006] A multi-cavity mold with a large water inlet automatic cutting-off mold comprises a lower mold and an upper mold detachably arranged on the lower mold, the upper mold is provided with a plurality of upper mold cavities on the side facing the lower mold, the lower mold is provided with a plurality of lower mold cavities corresponding to the upper mold cavities on the side facing the upper mold, flow channels connecting all the lower mold cavities are arranged between the lower mold cavities, a pouring gate penetrating the upper mold is arranged on the upper mold, the pouring gate is connected to the flow channel, a cutter is slidably arranged at the connection between the flow channel and the lower mold cavity in the lower mold, and the cutter slides into the flow channel to separate the flow channel and the lower mold cavity.

[0007] By adopting the above technical solution, a cutter is set between the runner opening and the lower mold cavity, and the sprue and the product are separated by the sliding of the cutter. The position of the cutter is preset and fixed, which reduces the probability of the separation position being too close to the product or too far away from the product when separating the mold and the sprue, and reduces the influence of the sprue separation on the water outlet quality.

[0008] Optionally, a glue adding section is provided at the connection between the flow channel and the lower mold cavity, and a guide groove is provided on the cutter corresponding to the glue adding section.

[0009] By adopting the above technical solution, the glue adding section cooperates with the guide groove to guide the cutter, thereby reducing the probability of the cutter being offset during cutting and improving the cutting accuracy.

[0010] Optionally, a clamping block is horizontally slidably provided on the lower mold, and the clamping block slides toward or away from the upper mold cavity. The clamping block is fixed with an insertion rod toward the upper mold cavity, and the insertion rod is inserted into the upper mold cavity through the sliding movement of the clamping block.

[0011] By adopting the above technical solution, the setting of the insertion rod can reduce the probability of the product falling directly after the upper mold is detached, and reduce the probability of the product and the material head being directly pushed out of the lower mold when the cutter slides.

[0012] Optionally, a tool holder slider is slidably provided on the lower die, and the cutting knives are fixed on the tool holder slider, and the tool holder slider slides on the lower die toward or away from the upper die.

[0013] By adopting the above technical solution, the setting of the tool holder slider can realize the synchronous sliding of a plurality of cutters, thus facilitating the cutting of the cutters.

[0014] Optionally, a sliding guide groove is provided on the tool holder slide block, and a sliding guide block adapted to the sliding guide groove is fixed on the lower die.

[0015] By adopting the above technical solution, the sliding guide groove and the sliding guide block can guide the sliding of the tool holder slider, reduce the probability of the cutter being offset due to the offset of the tool holder slider, and further improve the cutting accuracy.

[0016] Optionally, a driving member is provided between the tool holder slider and the lower die, and the driving member drives the tool holder slider to slide on the lower die toward or away from the upper die.

[0017] By adopting the above technical solution, the drive member drives the slide block of the tool holder to slide, so that the tool holder slide block drives the cutter to cut and separate the material head and the product.

[0018] Optionally, an elastic member is provided between the tool holder slider and the lower die, and the elastic member drives the tool holder slider to slide on the lower die toward the upper die.

[0019] By adopting the above technical solution, when the upper mold is separated from the lower mold, the tool holder slider slides under the elastic force of the elastic member, thereby driving the cutter to slide and separate the flow channel and the lower mold cavity, thereby cutting and separating the material head and the product.

[0020] Optionally, the tool holder slider is detachably mounted on the upper die.

[0021] By adopting the above technical solution, when the upper mold is separated from the lower mold, the upper mold drives the tool holder slider to slide so that the cutter passes between the flow channel and the lower mold cavity to cut and separate the product and the material head.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. A cutter is set between the runner port and the lower mold cavity, and the sprue and the product are separated by the sliding of the cutter. The position of the cutter is preset and fixed, which reduces the probability that the separation position is too close to the product or too far away from the product when separating the mold and the sprue, and reduces the impact of the sprue separation on the nozzle quality;

[0024] 2. The glue adding section cooperates with the guide groove to guide the cutter, reducing the probability of the cutter offset during cutting and improving the cutting accuracy;

[0025] 3. The setting of the plunger can reduce the probability of the product falling directly after the upper die is separated, and reduce the probability of the product and the material head being directly pushed out of the lower die when the cutter slides;

[0026] 4. The setting of the knife holder slider can realize the synchronous sliding of several cutters, which is convenient for cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the first embodiment.

[0028] Figure 2 It is a structural diagram of the lower mold with a product in the first embodiment.

[0029] Figure 3 It is a structural diagram of the lower mold with the product in the second embodiment.

[0030] Figure 4 It is a schematic diagram of the overall structure of the product installed in Example 3.

[0031] Explanation of the accompanying reference numerals: 1. lower mold; 2. upper mold; 3. upper mold cavity; 4. lower mold cavity; 5. runner; 6. pouring gate; 7. cutting knife; 8. glue adding section; 9. guide groove; 10. clamping block; 11. insertion rod; 12. tool holder slider; 13. sliding guide groove; 14. sliding guide block; 15. driving member; 16. elastic member; 17. product; 18. material head. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] Embodiment 1:

[0034] The present application embodiment discloses a multi-cavity mold with a large water nozzle and automatic cutting-off mold, referring to Figure 1 and Figure 2, including a lower mold 1 and an upper mold 2 which is detachably arranged on the lower mold 1, the upper mold 2 is provided with a plurality of upper mold cavities 3 on one side facing the lower mold 1, the lower mold 1 is provided with a plurality of lower mold cavities 4 on the side facing the upper mold 2 corresponding to the upper mold cavities 3, the upper mold 2 and the lower mold 1 are spliced ​​together to form a mold, a single upper mold cavity 3 and a single lower mold cavity 4 are spliced ​​together to form a product 17 cavity, in this embodiment, the upper mold cavities 3 and the lower mold cavities 4 are both arranged in two rows with a total of four, the two rows of upper mold cavities 3 are mirror-imaged on the upper mold 2, the two rows of lower mold cavities 4 are mirror-imaged on the lower mold 1, a flow channel 5 connecting all the lower mold cavities 4 is arranged between the lower mold cavities 4, a pouring port 6 which runs through the upper mold 2 is opened on the upper mold 2, when the upper mold 2 and the lower mold 1 are spliced ​​together, the pouring port 6 is connected to the flow channel 5, and a sliding arrangement is arranged at the connection between the flow channel 5 and the lower mold cavity 4 in the lower mold 1 There is a cutter 7. In the present embodiment, two cutters 7 are provided. The two cutters 7 are respectively provided corresponding to the two rows of lower molds 1. The cutter 7 slides into the flow channel 5 to separate the flow channel 5 and the lower mold cavity 4. The cutter 7 is provided between the flow channel 5 and the lower mold cavity 4, and the material head 18 and the product 17 are separated by the sliding of the cutter 7. The position of the cutter 7 is preset and fixed, which reduces the probability that the separation position is too close to the product 17 or too far away from the product 17 when the mold and the material head 18 are separated, and reduces the influence of the separation of the material head 18 on the quality of the water outlet; a glue adding section 8 is provided at the connection between the flow channel 5 and the lower mold cavity 4, and a guide groove 9 is provided on the cutter 7 corresponding to the glue adding section 8. The glue adding section 8 cooperates with the guide groove 9 to guide the cutter 7, which reduces the probability of deviation when the cutter 7 is cutting and ensures the cutting accuracy.

[0035] Reference Figure 1 and Figure 2 A clamp block 10 is horizontally slidably provided on the lower mold 1, and the clamp block 10 slides toward or away from the upper mold cavity 3. The clamp block 10 is fixed with an insertion rod 11 toward the upper mold cavity 3, and the insertion rod 11 is inserted into the upper mold cavity 3 through the clamp block 10. When the product 17 has a hole, the insertion rod 11 is set corresponding to the hole of the product 17. During casting, the clamp block 10 serves as the side wall of the upper mold cavity 3 and the lower mold cavity 4, and the insertion rod 11 serves as a structure inserted in the hole. When demolding, the insertion rod 11 can be inserted into the product 17 to reduce The probability of the product 17 directly falling off after the upper mold 2 is detached is reduced, and the probability of the product 17 and the stub 18 being directly ejected out of the lower mold 1 when the cutter 7 slides is reduced; when there is no hole on the product 17, the insert rod 11 is inserted into the bottom of the upper mold cavity 3 and is flush with the bottom of the upper mold cavity 3. When demolding, the insert rod 11 can abut against the side of the product 17 away from the lower mold 1 to reduce the probability of the product 17 directly falling off after the upper mold 2 is detached, and the probability of the product 17 and the stub 18 being directly ejected out of the lower mold 1 when the cutter 7 slides is reduced.

[0036] Reference Figure 1 and Figure 2A tool holder slider 12 is slidingly provided on the lower mold 1, and the cutters 7 are fixed on the tool holder slider 12. The tool holder slider 12 slides on the lower mold 1 toward or away from the upper mold 2. The setting of the tool holder slider 12 can realize the synchronous sliding of several cutters 7, which is convenient for the cutting of the cutters 7; a sliding guide groove 13 is opened on the tool holder slider 12, and the sliding guide groove 13 is a T-shaped groove. A sliding guide block 14 adapted to the sliding guide groove 13 is fixed on the lower mold 1, and the sliding guide block 14 is a T-shaped block. The sliding guide groove 13 cooperates with the sliding guide block 14 to guide the sliding of the tool holder slider 12, reduce the probability of the cutter 7 being offset due to the offset of the tool holder slider 12, and further improve the cutting accuracy.

[0037] Reference Figure 1 and Figure 2 A driving member 15 is provided between the tool holder slider 12 and the lower die 1. In this embodiment, the driving member 15 is a cylinder. The driving member 15 drives the tool holder slider 12 to slide on the lower die 1 toward or away from the upper die 2. The driving member 15 drives the tool holder slider 12 to slide, so that the tool holder slider 12 drives the cutter 7 to cut and separate the material head 18 and the product 17.

[0038] The implementation principle of the embodiment of the present application is as follows: the pressing block is slid to one side of the lower mold cavity 4 as the side wall of the lower mold cavity 4, and then the driving member 15 is started to drive the tool holder slider 12 to slide to be flush with the side of the lower mold 1 facing the upper mold 2, so that the cutter 7 slides out of the lower mold cavity 4 and the runner 5 embedded in the lower mold 1, the upper mold 2 is installed and fixed on the lower mold 1, and the insertion rod 11 is inserted into the upper mold cavity 3, and the molten plastic is poured into the pouring port 6. After the molten plastic is cooled and formed, the upper mold 2 is driven to separate from the lower mold 1, and then the driving member 15 is started to drive the tool holder slider 12 to slide in the direction close to the upper mold 2, and the cutter 7 separates the lower mold cavity 4 and the runner 5 by sliding, and cuts and separates the product 17 in the lower mold cavity 4 and the material head 18 in the runner 5, and then the clamping block 10 is driven to slide away from the lower mold cavity 4, so that the insertion rod 11 is separated from the product 17, and the product 17 and the material head 18 are separated from the lower mold 1 to complete the cutting of the material head 18 and the demolding of the product 17.

[0039] Embodiment 2:

[0040] The difference between this embodiment and the first embodiment is that the driving method of the tool holder slider 12 in this embodiment is different from that in the first embodiment.

[0041] Reference Figure 3An elastic member 16 is provided between the tool holder slider 12 and the lower die 1. In this embodiment, the elastic member 16 is a compression spring. Under normal conditions, the elastic member 16 drives the tool holder slider 12 to extend from the lower die 1 toward the upper die 2, so that the cutter 7 slides to separate the lower die cavity 4 and the flow channel 5. When the upper die 2 is installed on the lower die 1, the upper die 2 drives the tool holder slider 12 to slide, so that the tool holder slider 12 is embedded in the lower die 1, so that the cutter 7 slides out of the lower die cavity 4 and the flow channel 5 embedded in the lower die 1. When demolding, when the upper die 2 is separated from the lower die 1, the tool holder slider 12 slides under the elastic force of the elastic member 16, thereby driving the cutter 7 to slide to separate the flow channel 5 and the lower die cavity 4, and cutting and separating the material head 18 and the product 17.

[0042] The implementation principle of the embodiment of the present application is as follows: the pressing block is slid to one side of the lower mold cavity 4 as the side wall of the lower mold cavity 4, the upper mold 2 is installed and fixed on the lower mold 1, the upper mold 2 drives the tool holder slider 12 to slide to be flush with the side of the lower mold 1 facing the upper mold 2, so that the cutter 7 slides out of the lower mold cavity 4 and is embedded in the lower mold 1 between the runner 5, and at the same time, the insertion rod 11 is inserted into the upper mold cavity 3, and the molten plastic is poured into the pouring port 6. After the molten plastic is cooled and formed, the upper mold 2 is driven to separate from the lower mold 1, and the tool holder slider 12 slides toward the upper mold 2 under the elastic force of the elastic member 16. The cutter 7 separates the lower mold cavity 4 and the runner 5 by sliding, and cuts and separates the product 17 in the lower mold cavity 4 and the material head 18 in the runner 5, and then drives the clamping block 10 to slide away from the lower mold cavity 4, so that the insertion rod 11 is separated from the product 17, and the product 17 and the material head 18 are separated from the lower mold 1 to complete the cutting of the material head 18 and the demolding of the product 17.

[0043] Embodiment three:

[0044] The difference between this embodiment and the first embodiment is that the driving method of the tool holder slider 12 in this embodiment is different from that in the first embodiment.

[0045] Reference Figure 4 The tool holder slider 12 is detachably mounted on the upper mold 2. When the upper mold 2 is separated from the lower mold 1, the upper mold 2 drives the tool holder slider 12 to slide so that the cutter 7 passes between the flow channel 5 and the lower mold cavity 4 to cut and separate the product 17 and the material head 18.

[0046] The implementation principle of the embodiment of the present application is as follows: the pressing block is slid to one side of the lower mold cavity 4 as the side wall of the lower mold cavity 4, the upper mold 2 is installed and fixed on the lower mold 1, the upper mold 2 drives the tool holder slider 12 to slide to be flush with the lower mold 1 facing the upper mold 2, so that the cutter 7 slides out of the lower mold cavity 4 and the runner 5 embedded in the lower mold 1, and at the same time, the insertion rod 11 is inserted into the upper mold cavity 3, and the molten plastic is poured into the pouring port 6. After the molten plastic is cooled and formed, the upper mold 2 is driven to separate from the lower mold 1, and the tool holder slider 12 is driven by the upper mold 2 to separate from the lower mold 1. During this period, the cutter 7 slides through the lower mold cavity 4 and the runner 5, and the product 17 in the lower mold cavity 4 and the material head 18 in the runner 5 are cut and separated, and then the clamping block 10 is driven to slide away from the lower mold cavity 4, so that the insertion rod 11 is separated from the product 17, and the product 17 and the material head 18 are separated from the lower mold 1 to complete the cutting of the material head 18 and the demolding of the product 17.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-cavity mold with a large water nozzle and automatic cutting-off, comprising a lower mold (1) and an upper mold (2) detachably mounted on the lower mold (1), wherein the upper mold (2) is provided with a plurality of upper mold cavities (3) on the side facing the lower mold (1), and the lower mold (1) is provided with a plurality of lower mold cavities (4) corresponding to the upper mold cavities (3) on the side facing the upper mold (2), wherein a flow channel (5) connecting all the lower mold cavities (4) is provided between the lower mold cavities (4), and a pouring port (6) penetrating the upper mold (2) is provided on the upper mold (2), wherein the pouring port (6) is connected to the flow channel (5), and wherein the characteristics are as follows: A cutter (7) is slidably provided in the lower mold (1) at the connection between the flow channel (5) and the lower mold cavity (4); the cutter (7) slides into the flow channel (5) to separate the flow channel (5) and the lower mold cavity (4).

2. A multi-cavity mold with large water nozzle automatic cutting-off according to claim 1, characterized in that: A glue adding section (8) is provided at the connection between the flow channel (5) and the lower mold cavity (4), and a guide groove (9) is provided on the cutting knife (7) corresponding to the glue adding section (8).

3. A multi-cavity mold with large water inlet and automatic cutting-off according to claim 2, characterized in that: A clamping block (10) is horizontally slidably arranged on the lower die (1), and the clamping block (10) slides in a direction approaching or away from the upper die cavity (3). An insertion rod (11) is fixedly arranged on the clamping block (10) toward the upper die cavity (3), and the insertion rod (11) is slidably inserted into the upper die cavity (3) through the clamping block (10).

4. The multi-cavity mold with large water nozzle automatic cutting-off according to claim 3, characterized in that: A tool holder slider (12) is slidably provided on the lower die (1), and the cutters (7) are fixed on the tool holder slider (12). The tool holder slider (12) slides on the lower die (1) in a direction approaching or moving away from the upper die (2).

5. The multi-cavity mold with large water nozzle automatic cutting-off according to claim 4, characterized in that: The tool holder slide block (12) is provided with a sliding guide groove (13), and the lower die (1) is fixedly provided with a sliding guide block (14) adapted to the sliding guide groove (13).

6. The multi-cavity mold with large water nozzle automatic cutting-off according to claim 5, characterized in that: A driving member (15) is provided between the tool holder slide block (12) and the lower die (1), and the driving member (15) drives the tool holder slide block (12) to slide on the lower die (1) in a direction approaching or moving away from the upper die (2).

7. The multi-cavity mold with large water inlet and automatic cutting-off according to claim 5, characterized in that: An elastic member (16) is provided between the tool holder slide block (12) and the lower die (1), and the elastic member (16) drives the tool holder slide block (12) to slide on the lower die (1) in a direction close to the upper die (2).

8. The multi-cavity mold with large water nozzle automatic cutting-off according to claim 5, characterized in that: The tool holder slide block (12) is detachably mounted on the upper die (2).

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