Injection mold convenient to demold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold convenient to demold, which comprises a machine body, a support frame is fixedly connected to the outer wall of the machine body, an inclined block is fixedly connected to the inner wall of the machine body, a hydraulic cylinder is arranged on the support frame, a demolding mechanism is arranged on the machine body, and the demolding mechanism comprises an upper mold. The upper mold is fixedly connected with the output end of the hydraulic cylinder, an injection molding opening is formed in the upper mold, and the lower mold is fixedly connected to the outer wall of the machine body. According to the injection mold convenient to demold, the guide rods, the first cross rod and other devices are arranged, when the hydraulic cylinder drives the upper mold to ascend, the first cross rod is driven to move, the first cross rod drives the second cross rod to ascend, the first cross rod moves to drive the push plate to push out a plastic shell, demolding can be completed, and self-demolding operation of the device is achieved through the design; new driving equipment is not required to be additionally arranged for operation, so that the cost of the device is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold which is convenient for demoulding. Background Art

[0002] An injection mold is a tool used to produce plastic products. It is a tool that injects molten plastic material into a mold and forms a product of the desired shape through pressurization and cooling.

[0003] At present, in the prior art, for example, a Chinese patent with a publication number of CN219583425U discloses an injection mold that is easy to demold. The device drives the gear to rotate through a motor, thereby rotating the drum through a gear ring. During the rotation of the drum, the threaded block is limited by the push rod, the mounting plate and the movable rod, thereby causing the threaded block to move upward, so that the push plate slowly ejects the finished product in the lower mold. When the contact block contacts the reset switch, the reset switch transmits a signal to the controller, and the controller controls the motor to turn off. The device demolds the device by adding a motor and other devices, but cannot achieve automatic demolding, and also increases the cost of the equipment. In view of this, we propose an injection mold that is easy to demold. Utility Model Content

[0004] The main purpose of the utility model is to provide an injection mold that is easy to demould, which can solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes an injection mold for convenient demoulding, comprising a body, the outer wall of the body is fixedly connected to a support frame, the inner wall of the body is fixedly connected to an inclined block for squeezing a push rod to make the push block move, a hydraulic cylinder is provided on the support frame, and a demoulding mechanism is provided on the body, and the demoulding mechanism comprises:

[0006] An upper mold, the upper mold is fixedly connected to the output end of the hydraulic cylinder, and the upper mold is provided with an injection port;

[0007] The lower mold is fixedly connected to the outer wall of the machine body.

[0008] Preferably, the outer wall of the upper mold is fixedly connected to a guide rod for improving the stability of the movement of the upper mold and driving the cross bar to move downward. The guide rod passes through the machine body and the lower mold and is slidably connected to the machine body and the lower mold.

[0009] Preferably, one end of the guide rod away from the upper mold is fixedly connected to a cross bar 1, the cross bar 1 is provided with a slot, and the inner wall of the slot is slidably connected to a push block.

[0010] Preferably, a push rod is fixedly connected to the outer wall of the push block, the push rod passes through cross bar one and is slidably connected to cross bar one, one end of a spring one is fixedly connected to the outer wall of the push rod, and the other end of the spring one is fixedly connected to the outer wall of cross bar one.

[0011] Preferably, a push plate is provided in the lower mold for ejecting the plastic shell formed inside the lower mold. The outer wall of the push plate is fixedly connected to a moving rod, which is slidably connected to the lower mold and the inner wall of the body. The end of the moving rod away from the push plate is fixedly connected to a cross bar 2.

[0012] Preferably, the second cross bar is provided with a through groove, the second cross bar is slidably connected with a clamping block, the outer wall of the clamping block is fixedly connected with one end of the second spring, the other end of the second spring is fixedly connected to the inner wall of the second cross bar, the clamping block is provided with a sliding groove, the sliding groove is penetrated by the inclined rod and is slidably connected to the inclined rod, and the inclined rod is fixedly connected to the inner wall of the machine body.

[0013] The utility model provides an injection mold that is easy to demould. It has the following beneficial effects:

[0014] (1) The injection mold for easy demoulding is provided with a guide rod, a cross bar and other devices. When the hydraulic cylinder drives the upper mold to rise, the cross bar moves, so that the cross bar drives the cross bar to rise. The movement of the cross bar drives the push plate to push the plastic shell out, and the demoulding is completed. This design realizes the self-demolding operation of the device without adding additional equipment, which effectively reduces the cost of the device.

[0015] (2) The injection mold is easy to demould. The device can make the upper mold squeeze the second cross bar through the first cross bar during the descending process through the design of the inclined rod and the inclined block, thereby driving the push plate to automatically reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the second three-dimensional cross-sectional structure of the crossbar of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the card block of the utility model;

[0021] Figure 5 It is a schematic diagram of the second three-dimensional cross-sectional structure of the crossbar of the utility model.

[0022] Description of Figure Numbers:

[0023] 1. Machine body; 11. Oblique block; 2. Support frame; 3. Hydraulic cylinder; 4. Demolding mechanism; 41. Upper mold; 411. Injection port; 412. Guide rod; 413. Crossbar 1; 414. Slot; 415. Push block; 416. Push rod; 417. Spring 1; 42. Lower mold; 421. Push plate; 422. Moving rod; 423. Crossbar 2; 424. Through slot; 425. Oblique rod; 426. Block; 427. Slide; 428. Spring 2.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] See also Figure 1-Figure 5 The utility model provides an injection mold for convenient demoulding, including a body 1, a support frame 2 is fixedly connected to the outer wall of the body 1, an inclined block 11 is fixedly connected to the inner wall of the body 1, a hydraulic cylinder 3 is arranged on the support frame 2, and a demoulding mechanism 4 is arranged on the body 1.

[0027] In the embodiment of the utility model, in order to be able to demould, specifically, the demoulding mechanism 4 includes an upper mold 41, the upper mold 41 is fixedly connected to the output end of the hydraulic cylinder 3, the upper mold 41 is provided with an injection port 411, a lower mold 42, the lower mold 42 is fixedly connected to the outer wall of the body 1, the outer wall of the upper mold 41 is fixedly connected to a guide rod 412, the guide rod 412 penetrates the body 1 and the lower mold 42 and is slidably connected to the body 1 and the lower mold 42, a push plate 421 is provided in the lower mold 42, the outer wall of the push plate 421 is fixedly connected to a motion rod 422, and the motion rod 4 22 is slidably connected with the lower mold 42 and the inner wall of the body 1, the end of the moving rod 422 away from the push plate 421 is fixedly connected with the second cross bar 423, the second cross bar 423 is provided with a through slot 424, the second cross bar 423 is slidably connected with a clamping block 426, the outer wall of the clamping block 426 is fixedly connected with one end of the second spring 428, the other end of the second spring 428 is fixedly connected with the inner wall of the second cross bar 423, the clamping block 426 is provided with a sliding groove 427, the sliding groove 427 is penetrated by the inclined rod 425 and is slidably connected with the inclined rod 425, and the inclined rod 425 is fixedly connected with the inner wall of the body 1;

[0028] like Figure 1 and Figure 2 As shown, when the upper mold 41 rises upward, the cross bar 1 413 moves upward synchronously. During this process, the cross bar 1 413 squeezes the block 426, so that the cross bar 2 423 drives the push plate 421 to move upward, thereby ejecting the shell in the lower mold 42. When the cross bar 1 413 moves to the top, the inclined rod 425 squeezes the block 426, so that the block 426 moves a distance inside the cross bar 2 423. It should be noted that when the block 426 moves to the cross bar 2 423 When the block 426 moves a certain distance inside, the lower inclined surface of the block 426 contacts the outer wall of the cross bar 1 413. At this time, under the action of the hydraulic cylinder 3, the cross bar 1 413 will squeeze the block 426, so that the block 426 can completely slide into the cross bar 2 423. At the same time, the spring 2 428 undergoes elastic deformation. When the block 426 coincides with the slot 414, the block 426 will bounce into the slot 414 under the elastic force of the spring 2 428, so that the cross bar 1 413 and the cross bar 2 423 are connected to each other.

[0029] Furthermore, one end of the guide rod 412 away from the upper mold 41 is fixedly connected to a cross bar 413, the cross bar 413 is provided with a slot 414, the inner wall of the slot 414 is slidably connected to a push block 415, the outer wall of the push block 415 is fixedly connected to a push rod 416, the push rod 416 penetrates the cross bar 413 and is slidably connected to the cross bar 413, the outer wall of the push rod 416 is fixedly connected to one end of a spring 417, and the other end of the spring 417 is fixedly connected to the outer wall of the cross bar 413;

[0030] like Figure 4As shown, the block 426 is provided with two inclined surfaces, and the area of ​​the lower inclined surface is larger than that of the upper inclined surface. Therefore, when the block 426 is squeezed by the inclined rod 425, the lower inclined surface of the block 426 will enter the interior of the second crossbar 423. At this time, the upper inclined surface of the block 426 is still a distance away from the interior of the second crossbar 423. At this time, when the upper mold 41 moves downward, the first crossbar 413 will exert a downward force on the block 426, so that the push plate 421 moves downward. In this process, the push rod 416 will be squeezed by the inclined block 11. The push block 415 squeezes the block 426, thereby pushing the upper inclined surface of the block 426 out of the slot 414. Then, under the power of the hydraulic cylinder 3, the cross bar 1 413 squeezes the inclined surface of the block 426. At this time, the block 426 will completely enter the interior of the cross bar 2 423 under the action of pressure, thereby releasing the connection between the cross bar 1 413 and the cross bar 2 423. Then the cross bar 2 423 will continue to move downward. It should be noted that when the cross bar 1 413 is disengaged from the cross bar 2 423, the push plate 421 will completely return to its original position.

[0031] In the present invention, when in use, the hydraulic cylinder 3 is first started to completely close the upper mold 41 and the lower mold 42, and then the material is injected into the space between the upper mold 41 and the lower mold 42 through the injection port 411. When the material is completely cooled, the hydraulic cylinder 3 is started again to move the upper mold 41 upward. During this process, the cross bar 1 413 squeezes the clamping block 426, so that the cross bar 2 423 drives the push plate 421 to move upward, thereby ejecting the outer shell in the lower mold 42. Then, under the action of the oblique rod 425, the cross bar 1 413 is clamped with the cross bar 2 423. Then, when the upper mold 41 is closed, the upper mold 41 is opened. When 41 moves downward, the cross bar 1 413 will exert a downward force on the block 426, causing the push plate 421 to move downward. During this process, the push rod 416 will be squeezed by the inclined block 11, causing the push block 415 to squeeze the block 426, thereby pushing the upper inclined surface of the block 426 out of the slot 414. Then, under the power of the hydraulic cylinder 3, the cross bar 1 413 will squeeze the inclined surface of the block 426, thereby releasing the clamping connection between the cross bar 1 413 and the cross bar 2 423. Then, the cross bar 2 423 will continue to move downward, causing the upper mold 41 and the lower mold 42 to close again.

[0032] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An injection mold for easy demoulding, comprising a body (1), characterized in that: The outer wall of the machine body (1) is fixedly connected to a support frame (2), the inner wall of the machine body (1) is fixedly connected to an inclined block (11), the support frame (2) is provided with a hydraulic cylinder (3), the machine body (1) is provided with a demoulding mechanism (4), and the demoulding mechanism (4) comprises: The upper mold (41) is fixedly connected to the output end of the hydraulic cylinder (3), the upper mold (41) is provided with an injection port (411), the outer wall of the upper mold (41) is fixedly connected to a guide rod (412), the guide rod (412) penetrates the machine body (1) and the lower mold (42) and is slidably connected to the machine body (1) and the lower mold (42), the end of the guide rod (412) away from the upper mold (41) is fixedly connected to a cross rod (413), the cross rod (413) A slot (414) is formed on the rod (413), a push block (415) is slidably connected to the inner wall of the slot (414), a push rod (416) is fixedly connected to the outer wall of the push block (415), the push rod (416) passes through the cross bar (413) and is slidably connected to the cross bar (413), one end of a spring (417) is fixedly connected to the outer wall of the push rod (416), and the other end of the spring (417) is fixedly connected to the outer wall of the cross bar (413); The lower mold (42) is fixedly connected to the outer wall of the machine body (1), and a push plate (421) is provided inside the lower mold (42). The outer wall of the push plate (421) is fixedly connected to a moving rod (422), and the moving rod (422) is slidably connected to the lower mold (42) and the inner wall of the machine body (1). One end of the moving rod (422) away from the push plate (421) is fixedly connected to a second cross bar (423), and the second cross bar (423) is provided with a through groove (4 24), the second cross bar (423) is slidably connected with a clamping block (426), the outer wall of the clamping block (426) is fixedly connected with one end of the second spring (428), the other end of the second spring (428) is fixedly connected to the inner wall of the second cross bar (423), the clamping block (426) is provided with a sliding groove (427), the sliding groove (427) is penetrated by the inclined rod (425) and is slidably connected to the inclined rod (425), and the inclined rod (425) is fixedly connected to the inner wall of the body (1).

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