Injection molding mold for plastic box

Abstract

The utility model discloses an injection molding mold for a plastic box, and relates to the technical field of injection molding equipment. The utility model comprises a mounting frame, a first mold, a second mold, a first driving member, and a second driving member. The first mold and the second mold are arranged on the mounting frame and are slidably connected with the mounting frame. The first driving member is arranged at the bottom of the mounting frame, and the second driving member is arranged at the top of the mounting frame. The first mold comprises a first mounting plate and a concave mold, and the concave mold is arranged at the top of the first mounting plate. The first mounting plate is slidably connected with the mounting frame. A plurality of ejector rods are arranged on the mounting frame, and the tops of the plurality of ejector rods penetrate the first mounting plate and the concave mold and are slidably connected with the first mounting plate and the concave mold. The second mold comprises a second mounting plate and a convex mold, and the second mounting plate is slidably connected with the mounting frame. The utility model solves the problem that when the current plastic box injection molding mold is in use, it is not easy to remove the molded plastic box from the injection mold after the plastic box is cooled and molded, and demoulding is difficult.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to an injection molding mold for a plastic box. Background Art

[0002] An injection mold is a tool used for injection molding, also known as an injection mold. It is usually made of metal materials and includes a male mold and a female mold. During the injection molding process, plastic particles are heated to a molten state and injected into the mold, and pressure is applied and the plastic product is formed by cooling. At present, injection molds are often used to make plastic boxes. Plastic boxes have the characteristics of increasing user experience, permanent and durable packaging, moisture-proof, waterproof, high toughness, and strong transportation safety performance.

[0003] When an injection mold is used to produce a plastic box, a male mold and a female mold are generally engaged to form a cavity, and then heated and melted plastic is injected into the cavity, and then the plastic box is cooled and formed. However, when the injection mold in the prior art is used, it is difficult to remove the formed plastic box from the injection mold after the plastic box is cooled and formed, and demoulding is difficult.

[0004] In the utility model with application number: CN202320156326.8 and publication number: CN219522906U, a plastic box injection molding mold is disclosed, including a lower mold and an upper mold, the surface of the lower mold is fixed with a top plate by a support rod, the surface of the top plate is fixed with a hydraulic cylinder, the end face of the hydraulic rod of the hydraulic cylinder is fixed to the surface of the upper mold, the surface of the lower mold is provided with a plastic box model protrusion, the lower surface of the upper mold is provided with a plastic box model cavity, and the inner surface of the upper mold is slidably connected with a stripping rod, although it can facilitate demolding, but because it is a positive structure, the lower mold needs to be manually cleaned after each molding, which is inconvenient to use. Utility Model Content

[0005] Based on this, in order to solve the above problems, the utility model proposes an injection molding mold for a plastic box, which solves the problem that the molded plastic box is difficult to remove from the injection mold after the plastic box is cooled and molded during use.

[0006] The technical solution of the utility model is:

[0007] An injection molding mold for a plastic box, comprising a mounting frame, a first mold, a second mold, a first driving member and a second driving member, wherein the first mold and the second mold are arranged on the mounting frame and are slidably connected to the mounting frame, the first driving member is arranged at the bottom of the mounting frame and is used to drive the first mold to rise or fall, and the second driving member is arranged at the top of the mounting frame and is used to drive the second mold to rise or fall;

[0008] The first mold includes a first mounting plate and a concave mold, the concave mold is arranged on the top of the first mounting plate, the first mounting plate is slidably connected to the mounting frame, a plurality of ejector rods are arranged on the mounting frame, the tops of the plurality of ejector rods penetrate the first mounting plate and the concave mold and are slidably connected to the first mounting plate and the concave mold, and the bottoms of the plurality of ejector rods are fixedly connected to the mounting frame;

[0009] The second mold includes a second mounting plate and a punch. The punch is arranged at the bottom of the second mounting plate. The second mounting plate is slidably connected to the mounting frame. The punch can be buckled with the die to form a cavity. The punch is provided with an injection port that cooperates with the cavity.

[0010] Preferably, the mounting frame includes a first fixing plate, a second fixing plate and a plurality of connecting rods, wherein the plurality of connecting rods are arranged between the first fixing plate and the second fixing plate, and the bottoms of the plurality of connecting rods pass through the first fixing plate and the tops pass through the second fixing plate, and the plurality of connecting rods are fixedly connected to the first fixing plate and the second fixing plate.

[0011] Preferably, a first connecting head matched with a plurality of connecting rods is provided on the first mounting plate, one end of the first connecting head is fixedly connected to the first mounting plate, and the other end is sleeved on the connecting rod and slidably connected to the connecting rod.

[0012] Preferably, the first driving member is a hydraulic cylinder, which passes through the first fixed plate, and the first fixed plate is fixedly connected to the first driving member, and the output end of the first driving member is fixedly connected to the bottom of the first mounting plate, for driving the first mounting plate and the die at the top of the first mounting plate to rise or fall along the connecting rod.

[0013] Preferably, a second connecting head matched with a plurality of connecting rods is provided on the second mounting plate, one end of the second connecting head is fixedly connected to the second mounting plate, and the other end is sleeved on the connecting rod and slidably connected to the connecting rod.

[0014] Preferably, the second driving member is a hydraulic cylinder, the output end of the second driving member passes through the second fixed plate and is slidably connected to the second fixed plate, the second driving member is fixedly arranged on the second fixed plate, and the output end of the second driving member is fixedly connected to the top of the second mounting plate, and is used to drive the second mounting plate and the punch at the bottom of the second mounting plate to rise or fall along the connecting rod.

[0015] Preferably, a fixing frame is further included, and one end of the first fixing plate and one end of the second fixing plate are respectively fixedly connected to the fixing frame.

[0016] Preferably, it further comprises a fixed base, and the first driving member and the fixed frame are arranged on the fixed base.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When the utility model is used, the first mounting plate and the concave mold are first driven by the first driving member, so that the first mounting plate and the concave mold are raised, and then the top of the ejector rod is matched with the bottom surface of the concave mold, and then the second mounting plate and the punch are driven down by the second driving member, so that the punch and the concave mold are buckled to form a cavity, and then the molten plastic is injected through the injection port, and the plastic is cooled in the cavity to form a plastic box, and then the second mounting plate and the punch are driven up by the second driving member to separate the punch from the plastic box, and then the first mounting plate and the concave mold are driven down by the first driving member, so that the top of the ejector rod can push the plastic box out of the concave mold, thereby realizing the separation of the plastic box from the concave mold, and then realizing that the plastic box can be easily separated from the cavity without manual separation of the plastic box. The utility model solves the problem that when the current plastic box injection molding mold is in use, it is not easy to remove the molded plastic box from the injection mold after the plastic box is cooled and formed, and it is difficult to demould. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an injection molding mold for a plastic box described in an embodiment of the utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of an injection molding mold for a plastic box described in an embodiment of the utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of an injection molding mold for a plastic box described in an embodiment of the utility model. Figure 3 ;

[0022] Figure 4 This is a partial structural diagram of an injection molding mold for a plastic box described in an embodiment of the utility model. Figure 1 ;

[0023] Figure 5 This is a partial structural diagram of an injection molding mold for a plastic box described in an embodiment of the utility model. Figure 2 ;

[0024] Description of reference numerals:

[0025] 10-mounting frame, 100-ejector rod, 101-first fixed plate, 102-second fixed plate, 103-connecting rod, 20-first mold, 200-first mounting plate, 201-die, 202-first connector, 30-second mold, 300-second mounting plate, 301-punch, 302-injection port, 303-second connector, 40-first driving member, 50-second driving member, 60-fixed frame, 70-fixed base. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] Example:

[0028] like Figure 1 , Figure 3 , Figure 5 As shown, in order to solve the above problems, the present embodiment discloses an injection molding mold for a plastic box, comprising a mounting frame 10, a first mold 20, a second mold 30, a first driving member 40 and a second driving member 50, wherein the first mold 20 and the second mold 30 are arranged on the mounting frame 10 and are slidably connected to the mounting frame 10, the first driving member 40 is arranged at the bottom of the mounting frame 10, and is used to drive the first mold 20 to rise or fall, and the second driving member 50 is arranged at the top of the mounting frame 10, and is used to drive the second mold 30 to rise or fall;

[0029] The first mold 20 includes a first mounting plate 200 and a concave mold 201, wherein the concave mold 201 is disposed on the top of the first mounting plate 200, the first mounting plate 200 is slidably connected to the mounting frame 10, a plurality of ejector rods 100 are disposed on the mounting frame 10, the tops of the plurality of ejector rods 100 penetrate the first mounting plate 200 and the concave mold 201 and are slidably connected to the first mounting plate 200 and the concave mold 201, and the bottoms of the plurality of ejector rods 100 are fixedly connected to the mounting frame 10;

[0030] The second mold 30 includes a second mounting plate 300 and a punch 301. The punch 301 is arranged at the bottom of the second mounting plate 300. The second mounting plate 300 is slidably connected to the mounting frame 10. The punch 301 can be buckled with the die 201 to form a cavity therebetween. The punch 301 is provided with an injection port 302 that cooperates with the cavity.

[0031] When the utility model is in use, the first driving member 40 is used to drive the first mounting plate 200 and the concave mold 201 to rise, so that the top of the ejector rod 100 is matched with the inner bottom surface of the concave mold 201, and then the second driving member 50 is used to drive the second mounting plate 300 and the punch 301 to descend, so that the punch 301 and the concave mold 201 are buckled to form a cavity, and then the molten plastic is injected through the injection port 302, and the plastic is cooled in the cavity to form a plastic box, and then the second mounting plate 300 and the punch 301 are driven to rise by the second driving member 50, so that the punch 301 is separated from the plastic box, and then the first driving member 40 is used to drive the first mounting plate 200 and the concave mold 201 to descend, so that the top of the ejector rod 100 can eject the plastic box out of the concave mold 201, thereby realizing the separation of the plastic box from the concave mold 201, and then realizing that the plastic box can be easily separated from the cavity without manual separation of the plastic box. The present invention solves the problem that when the current plastic box injection molding mold is in use, it is difficult to take the molded plastic box out of the injection mold after the plastic box is cooled and molded, and demoulding is difficult.

[0032] Preferably, the male mold 301 and the female mold 201 are provided with a plurality of ventilation holes for cooling and heat dissipation, and the ventilation holes are connected to the cavity. The specific positions and numbers of the ventilation holes can be set according to actual needs.

[0033] like Figure 2 , Figure 4 As shown, in order to facilitate the sliding connection between the punch 301 and the die 201 and the mounting frame 10, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the mounting frame 10 includes a first fixed plate 101, a second fixed plate 102 and a plurality of connecting rods 103, and the plurality of connecting rods 103 are arranged between the first fixed plate 101 and the second fixed plate 102, and the bottom of the plurality of connecting rods 103 passes through the first fixed plate 101, and the top passes through the second fixed plate 102, and the plurality of connecting rods 103 are fixedly connected to the first fixed plate 101 and the second fixed plate 102.

[0034] Preferably, the number of the connecting rods 103 is four, which are respectively arranged in cooperation with the first fixing plate 101 and the second fixing plate 102 .

[0035] like Figure 5 As shown, preferably, a first connecting head 202 is provided on the first mounting plate 200 to cooperate with a plurality of connecting rods 103 , one end of the first connecting head 202 is fixedly connected to the first mounting plate 200 , and the other end is sleeved on the connecting rod 103 and slidably connected to the connecting rod 103 .

[0036] Among them, the number of first connecting heads 202 is the same as the number of connecting rods 103, and the matching setting of the first connecting heads 202 and the connecting rods 103 can enable the first mounting plate 200 and the die 201 to rise and fall along the connecting rods 103, which can be helpful to accurately snap the punch 301 into the die 201.

[0037] like Figure 1 As shown, in order to drive the first mounting plate 200 and the die 201, this embodiment is modified on the basis of the above embodiment, and the difference from the above embodiment is that the first driving member 40 is a hydraulic cylinder, the first driving member 40 passes through the first fixed plate 101, and the first fixed plate 101 is fixedly connected to the first driving member 40, and the output end of the first driving member 40 is fixedly connected to the bottom of the first mounting plate 200, and is used to drive the first mounting plate 200 and the die 201 on the top of the first mounting plate 200 to rise or fall along the connecting rod 103.

[0038] When in use, the first driving member 40 can drive the first mounting plate 200 and the concave mold 201 on the top of the first mounting plate 200 to rise or fall along the connecting rod 103, and a hydraulic cylinder can be used to provide power for the first mounting plate 200 and the concave mold 201 on the top of the first mounting plate 200 to rise or fall.

[0039] The first driving member 40 may also be an electric cylinder or a pneumatic cylinder.

[0040] like Figure 5 As shown, preferably, a second connecting head 303 is provided on the second mounting plate 300 and is arranged in cooperation with a plurality of connecting rods 103 , one end of the second connecting head 303 is fixedly connected to the second mounting plate 300 , and the other end is sleeved on the connecting rod 103 and is slidably connected to the connecting rod 103 .

[0041] Among them, the number of second connecting heads 303 is the same as the number of connecting rods 103, and the matching setting of the second connecting heads 303 and the connecting rods 103 can enable the second mounting plate 300 and the punch 301 to rise and fall along the connecting rods 103, which can be helpful to accurately snap the punch 301 into the die 201.

[0042] like Figure 1 As shown, in order to drive the second mounting plate 300 and the punch 301, this embodiment is modified on the basis of the above embodiment, and the difference from the above embodiment is that the second driving member 50 is a hydraulic cylinder, the output end of the second driving member 50 passes through the second fixed plate 102, and is slidably connected to the second fixed plate 102, the second driving member 50 is fixedly arranged on the second fixed plate 102, and the output end of the second driving member 50 is fixedly connected to the top of the second mounting plate 300, and is used to drive the second mounting plate 300 and the punch 301 at the bottom of the second mounting plate 300 to rise or fall along the connecting rod 103.

[0043] When in use, the second driving member 50 can drive the second mounting plate 300 and the male mold 301 at the bottom of the second mounting plate 300 to rise or fall along the connecting rod 103, and a hydraulic cylinder can be used to provide power for the second mounting plate 300 and the female mold 201 at the bottom of the second mounting plate 300 to rise or fall.

[0044] Likewise, the second driving member 50 may also be an electric cylinder or a pneumatic cylinder.

[0045] like Figure 1 , Figure 2 , Figure 4 As shown, in order to increase the stability of the mounting frame 10, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that it also includes a fixed frame 60, and one end of the first fixed plate 101 and the second fixed plate 102 are respectively fixedly connected to the fixed frame 60.

[0046] One end of the first fixing plate 101 and the second fixing plate 102 are respectively fixedly connected to the fixing frame 60 , wherein the connection method between the first fixing plate 101 and the second fixing plate 102 and the fixing frame 60 includes but is not limited to welding or bolting.

[0047] In order to improve the stability of the present invention when in use, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that it further includes a fixed base 70, and the first driving member 40 and the fixed frame 60 are arranged on the fixed base 70.

[0048] The provision of the fixed base 70 allows the present invention to be fixed on the ground, thereby preventing the present invention from being displaced or tipped over.

[0049] Working principle of this utility model:

[0050] When the utility model is in use, the first driving member 40 is used to drive the first mounting plate 200 and the concave mold 201 to rise, so that the top of the ejector rod 100 is matched with the inner bottom surface of the concave mold 201, and then the second driving member 50 is used to drive the second mounting plate 300 and the punch 301 to descend, so that the punch 301 and the concave mold 201 are buckled to form a cavity, and then the molten plastic is injected through the injection port 302, and the plastic is cooled in the cavity to form a plastic box, and then the second mounting plate 300 and the punch 301 are driven to rise by the second driving member 50, so that the punch 301 is separated from the plastic box, and then the first driving member 40 is used to drive the first mounting plate 200 and the concave mold 201 to descend, so that the top of the ejector rod 100 can eject the plastic box out of the concave mold 201, thereby realizing the separation of the plastic box from the concave mold 201, and then realizing that the plastic box can be easily separated from the cavity without manual separation of the plastic box.

[0051] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A plastic box injection molding mold, characterized in that: The invention comprises a mounting frame (10), a first mold (20), a second mold (30), a first driving member (40) and a second driving member (50), wherein the first mold (20) and the second mold (30) are arranged on the mounting frame (10) and are slidably connected to the mounting frame (10), the first driving member (40) is arranged at the bottom of the mounting frame (10) and is used to drive the first mold (20) to rise or fall, and the second driving member (50) is arranged at the top of the mounting frame (10) and is used to drive the second mold (30) to rise or fall; The first mold (20) comprises a first mounting plate (200) and a concave mold (201), the concave mold (201) is arranged on the top of the first mounting plate (200), the first mounting plate (200) is slidably connected to the mounting frame (10), a plurality of ejector rods (100) are arranged on the mounting frame (10), the tops of the plurality of ejector rods (100) penetrate the first mounting plate (200) and the concave mold (201) and are slidably connected to the first mounting plate (200) and the concave mold (201), and the bottoms of the plurality of ejector rods (100) are fixedly connected to the mounting frame (10); The second mold (30) comprises a second mounting plate (300) and a male mold (301), wherein the male mold (301) is arranged at the bottom of the second mounting plate (300), the second mounting plate (300) is slidably connected to the mounting frame (10), the male mold (301) can be engaged with the female mold (201) to form a cavity therebetween, and the male mold (301) is provided with an injection port (302) arranged to cooperate with the cavity.

2. The injection molding mold for a plastic box according to claim 1, characterized in that: The mounting frame (10) comprises a first fixing plate (101), a second fixing plate (102) and a plurality of connecting rods (103); the plurality of connecting rods (103) are arranged between the first fixing plate (101) and the second fixing plate (102); the bottoms of the plurality of connecting rods (103) pass through the first fixing plate (101) and the tops pass through the second fixing plate (102); the plurality of connecting rods (103) are fixedly connected to the first fixing plate (101) and the second fixing plate (102).

3. The injection molding mold for a plastic box according to claim 2, characterized in that: The first mounting plate (200) is provided with a first connecting head (202) which is arranged in cooperation with a plurality of connecting rods (103); one end of the first connecting head (202) is fixedly connected to the first mounting plate (200), and the other end is sleeved on the connecting rod (103) and slidably connected to the connecting rod (103).

4. The injection molding mold for a plastic box according to claim 3, characterized in that: The first driving member (40) is a hydraulic cylinder. The first driving member (40) passes through the first fixed plate (101), and the first fixed plate (101) is fixedly connected to the first driving member (40). The output end of the first driving member (40) is fixedly connected to the bottom of the first mounting plate (200) and is used to drive the first mounting plate (200) and the concave mold (201) on the top of the first mounting plate (200) to rise or fall along the connecting rod (103).

5. The injection molding die for a plastic box according to claim 2 or 4, characterized in that: The second mounting plate (300) is provided with a second connecting head (303) which is arranged in cooperation with a plurality of connecting rods (103); one end of the second connecting head (303) is fixedly connected to the second mounting plate (300), and the other end is sleeved on the connecting rod (103) and slidably connected to the connecting rod (103).

6. The injection molding die for a plastic box according to claim 5, characterized in that: The second driving member (50) is a hydraulic cylinder. The output end of the second driving member (50) passes through the second fixed plate (102) and is slidably connected to the second fixed plate (102). The second driving member (50) is fixedly arranged on the second fixed plate (102). The output end of the second driving member (50) is fixedly connected to the top of the second mounting plate (300) and is used to drive the second mounting plate (300) and the convex mold (301) at the bottom of the second mounting plate (300) to rise or fall along the connecting rod (103).

7. The injection molding mold for a plastic box according to claim 2, characterized in that: It also includes a fixed frame (60), and one end of the first fixed plate (101) and one end of the second fixed plate (102) are respectively fixedly connected to the fixed frame (60).

8. The injection molding die for a plastic box according to claim 7, characterized in that: It also includes a fixed base (70), on which the first driving member (40) and the fixed frame body (60) are arranged.

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