Quick release mechanism based on plastic product injection mold

Abstract

The utility model discloses a quick release mechanism based on a plastic product injection mold, which comprises a lower mold base and an upper mold base, and a fixed mold is arranged on the lower mold base and is used for bearing and positioning a plastic product; an injection molding mechanism is installed on the upper mold base and used for conducting compression molding on a plastic product. A plurality of quick disassembly structures are arranged between the lower die base and the upper die base and are used for quickly disassembling and assembling the lower die base and the upper die base; the quick release structure comprises a first fixing plate fixed on the upper mold base and a second fixing plate fixed on the lower mold base, the first fixing plate is provided with a limiting clamping groove, the second fixing plate is fixedly connected with a clamping block, and the clamping block is clamped in the limiting clamping groove in a sliding mode. According to the quick release mechanism for the injection mold based on the plastic products, the problems that an existing quick release mechanism for the injection mold is complex in disassembly and assembly structure and high in manufacturing cost, the position of the mold is inconvenient to flexibly adjust during installation, and use is limited are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic injection molds, in particular to a quick-release mechanism for plastic injection molds. Background Art

[0002] During the use of existing molds for plastic parts processing, the molds are generally fixed by screws. When different types of molds are replaced during later maintenance, the mold disassembly and installation are cumbersome and cannot be quickly set up.

[0003] In order to solve the above problems, patent CN202220777639.0 discloses a mold with a quick-release structure for processing plastic parts. The mold with a quick-release structure for processing plastic parts is provided with a snap-fit ​​structure, which can quickly fix the molding mold and facilitate the user to perform maintenance and setting work later.

[0004] The following defects and shortcomings exist in its implementation: multiple cylinders are used, the overall structure is complex, the production cost is high, and it is not convenient to flexibly adjust the mold position during installation, and its use is limited. Therefore, we propose a quick-release mechanism based on plastic injection molds. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a quick-release mechanism for a plastic injection mold, which solves the problems of the existing quick-release mechanism for injection molds having a complex disassembly and assembly structure, high manufacturing cost, inconvenience in flexibly adjusting the mold position during installation, and limitations in use.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a quick-release mechanism for a plastic injection mold, comprising a lower mold base and an upper mold base, wherein a fixed mold is installed on the lower mold base for positioning the plastic product;

[0007] The upper mold base is equipped with an injection molding mechanism for pressing and molding plastic products;

[0008] A plurality of quick-release structures are provided between the lower die base and the upper die base for quick disassembly and assembly between the lower die base and the upper die base;

[0009] The quick-release structure includes a first fixed plate fixed on the upper mold base and a second fixed plate fixed on the lower mold base. The first fixed plate is provided with a limiting slot, and the second fixed plate is fixedly connected with a clamping block. The clamping block is slidably clamped in the limiting slot, and the clamping block is locked and fixed to the first fixed plate by a locking assembly.

[0010] Preferably, the injection molding mechanism includes a top frame fixed on the upper mold base, a cylinder is fixedly mounted on the top frame, a piston rod is mounted on the output end of the cylinder, a movable mold is mounted on the bottom end of the piston rod, and the movable mold is penetrated in a second limiting hole opened on the upper mold base.

[0011] Preferably, the fixed die is arranged to penetrate into a first limiting hole provided on the lower die base, and a buffer component is provided on the lower die base for buffering the impact force when the fixed die is pressurized.

[0012] Preferably, the buffer assembly includes a damping spring shock absorber installed at the bottom of the fixed mold and a support plate installed inside the lower mold base, a rubber plate is installed on the support plate, and one end of the damping spring shock absorber is connected to the rubber plate.

[0013] Preferably, the locking assembly includes a mounting groove on the first fixed plate, a slider is slidably engaged with the mounting groove, a first mounting hole is formed on the slider, a second mounting hole is formed on the clamping block, and the second mounting hole is fixedly connected to the first mounting hole by bolts.

[0014] Preferably, a controller for controlling electrical components is installed on the lower die base.

[0015] Beneficial Effects

[0016] The utility model provides a quick-release mechanism for a plastic injection mold. Compared with the prior art, it has the following beneficial effects:

[0017] 1. A quick-release mechanism for an injection mold for plastic products, wherein a fixed mold is installed on a lower mold base, and an injection molding mechanism is installed on an upper mold base. The injection molding mechanism and the fixed mold cooperate to injection-mold the plastic products. A quick-release structure is arranged between the lower mold base and the upper mold base. The quick-release structure comprises a first fixed plate and a second fixed plate, etc. The clamping block is movably clamped in a limiting clamping groove, so that the first fixed plate can be quickly clamped and installed on the second fixed plate. At the same time, the clamping block and the first fixed plate are locked and fixedly connected by a locking assembly. After the first fixed plate is clamped and installed on the second fixed plate, it is locked and fixed, so that the molding mold can be quickly fixed by clamping, which is convenient for users to perform maintenance and setting work in the later stage. At the same time, the sliding of the clamping block in the limiting clamping groove can also flexibly adjust the installation position of the upper mold base, thereby improving the adaptability to environmental working conditions and making it more convenient to use.

[0018] 2. A quick-release mechanism for a plastic injection mold, wherein the fixed mold is movably connected to the inside of a first limiting hole opened in a lower mold base, a buffer assembly is arranged at the bottom of the fixed mold, and the buffer assembly includes a damping spring shock absorber, a rubber plate, etc., and the cylinder is started to drive the piston rod to extend and retract to drive the movable mold to move downward to press and form the plastic product in the fixed mold. When the fixed mold is pressed down, the shock absorbing characteristics of the damping spring shock absorber and the soft resilience of the rubber plate are used to buffer the impact force received by the fixed mold in the first time, thereby reducing the impact force received by the fixed mold, avoiding structural damage to the fixed mold caused by the impact, and helping to extend the service life of the fixed mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0022] In the figure: 1. lower die base; 11. first limiting hole; 2. upper die base; 21. second limiting hole; 3. injection molding mechanism; 31. top frame; 32. cylinder; 33. piston rod; 34. movable die; 4. fixed die; 5. quick release structure; 51. first fixed plate; 52. second fixed plate; 53. limiting slot; 54. block; 55. locking assembly; 551. mounting slot; 552. slider; 553. first mounting hole; 554. second mounting hole; 6. buffer assembly; 61. damping spring shock absorber; 62. rubber plate; 63. support plate. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-3 , the utility model provides two technical solutions:

[0025] Embodiment 1:

[0026] A quick-release mechanism for a plastic injection mold comprises a lower mold base 1 and an upper mold base 2, wherein a fixed mold 4 is installed on the lower mold base 1 for positioning the plastic product;

[0027] An injection molding mechanism 3 is installed on the upper mold base 2 for pressing and molding the plastic product;

[0028] A plurality of quick-release structures 5 are provided between the lower die base 1 and the upper die base 2 for quick disassembly and assembly between the lower die base 1 and the upper die base 2;

[0029] The quick-release structure 5 includes a first fixed plate 51 fixed on the upper mold base 2 and a second fixed plate 52 fixed on the lower mold base 1. The first fixed plate 51 is provided with a limiting slot 53, and the second fixed plate 52 is fixedly connected with a clamping block 54. The clamping block 54 is slidably clamped in the limiting slot 53, and the clamping block 54 and the first fixed plate 51 are locked and fixed by a locking assembly 55.

[0030] Embodiment 2:

[0031] The main difference from the first embodiment is:

[0032] A quick-release mechanism for a plastic injection mold, the injection mechanism 3 includes a top frame 31 fixed on an upper mold base 2, a cylinder 32 fixedly mounted on the top frame 31, a piston rod 33 mounted on the output end of the cylinder 32, a movable mold 34 mounted on the bottom end of the piston rod 33, the movable mold 34 penetrates and is arranged in a second limiting hole 21 opened on the upper mold base 2, the cylinder 32 is started to drive the piston rod 33 to extend and retract and drive the movable mold 34 to move downward to press and form the plastic product in the fixed mold 4; the fixed mold 4 penetrates and is arranged in a first limiting hole 11 opened on the lower mold base 1, and the lower mold base 1 is provided with a plurality of movable molds. A buffer assembly 6 is provided for buffering the impact force when the fixed mold 4 is under pressure, which can buffer the impact force received by the fixed mold 4 for the first time, reduce the impact force received by the fixed mold 4, avoid structural damage to the fixed mold 4 caused by the impact, and help to extend the service life of the fixed mold 4; the buffer assembly 6 includes a damping spring shock absorber 61 installed at the bottom of the fixed mold 4 and a support plate 63 installed inside the lower mold base 1, a rubber plate 62 is installed on the support plate 63, one end of the damping spring shock absorber 61 is connected to the rubber plate 62, and the cylinder 32 is started to drive the piston rod 33 to extend and retract to drive the movable mold 3 4 is moved downward to press and form the plastic product in the fixed mold 4. When the fixed mold 4 is pressed downward, the damping spring shock absorber 61 and the soft elasticity of the rubber plate 62 can buffer the impact force received by the fixed mold 4 at the first time, thereby reducing the impact force received by the fixed mold 4; the locking assembly 55 includes a mounting groove 551 provided on the first fixing plate 51, a slider 552 is slidably connected to the mounting groove 551, a first mounting hole 553 is provided on the slider 552, and a second mounting hole 554 is provided on the clamping block 54. The second mounting hole 554 is connected to the first mounting hole 553. Through the bolt fixing connection, the clamping block 54 is movably clamped in the limiting clamping groove 53, so that the first fixing plate 51 can be quickly clamped and installed on the second fixing plate 52. At the same time, the clamping block 54 and the first fixing plate 51 are locked and fixed through the second mounting hole 554 and the first mounting hole 553 through the bolt fixing connection. After the first fixing plate 51 is clamped and installed on the second fixing plate 52, it is locked and fixed. A controller for controlling the power components is installed on the lower mold base 1, which is convenient for automatic control of the power components and improves the degree of automation.

[0033] When the quick-release mechanism for the plastic injection mold is used, the fixed mold 4 is installed on the lower mold base 1, and the injection molding mechanism 3 is installed on the upper mold base 2. The injection molding mechanism 3 and the fixed mold 4 cooperate to perform injection molding of the plastic product. A quick-release structure 5 is set between the lower mold base 1 and the upper mold base 2. The quick-release structure 5 includes a first fixed plate 51 and a second fixed plate 52, etc. The clamping block 54 is movably clamped in the limiting clamping groove 53, so that the first fixed plate 51 can be quickly clamped and installed on the second fixed plate 52. At the same time, the clamping block 54 and the first fixed plate 51 are locked and fixedly connected by a locking assembly 55. After the first fixed plate 51 is clamped and installed on the second fixed plate 52, it is locked and fixed, so that the molding mold can be quickly fixed by clamping, which is convenient for users to perform maintenance and setting work in the later stage. When the card block 54 slides in the limit card groove 53, the installation position of the upper mold base 2 can be flexibly adjusted, thereby improving the adaptability to environmental working conditions and making it more convenient to use. In addition, the fixed mold 4 of the utility model is movably connected to the first limit hole 11 opened in the lower mold base 1, and a buffer component 6 is arranged at the bottom of the fixed mold 4. The buffer component 6 includes a damping spring shock absorber 61, a rubber plate 62, etc. The cylinder 32 is started to drive the piston rod 33 to extend and retract to drive the movable mold 34 to move downward to press and form the plastic product in the fixed mold 4. When the fixed mold 4 is pressed down, the shock absorbing characteristics of the damping spring shock absorber 61 and the soft resilience of the rubber plate 62 can buffer the impact force received by the fixed mold 4 in the first time, reduce the impact force received by the fixed mold 4, avoid structural damage to the fixed mold 4 caused by the impact, and help to extend the service life of the fixed mold 4.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release mechanism for a plastic injection mold, comprising a lower mold base (1) and an upper mold base (2), characterized in that: The lower die base (1) is provided with a fixed die (4) for positioning the plastic product; The upper mold base (2) is provided with an injection molding mechanism (3) for molding the plastic product by compression molding; A plurality of quick-release structures (5) are provided between the lower die base (1) and the upper die base (2) for quick disassembly and assembly between the lower die base (1) and the upper die base (2); The quick-release structure (5) comprises a first fixed plate (51) fixed on the upper die base (2) and a second fixed plate (52) fixed on the lower die base (1); a limit slot (53) is provided on the first fixed plate (51); a clamping block (54) is fixedly connected to the second fixed plate (52); the clamping block (54) is slidably clamped in the limit slot (53); and the clamping block (54) and the first fixed plate (51) are locked and fixed by a locking assembly (55).

2. The quick-release mechanism for a plastic injection mold according to claim 1, characterized in that: The injection molding mechanism (3) comprises a top frame (31) fixed on the upper mold base (2), a cylinder (32) fixedly mounted on the top frame (31), a piston rod (33) mounted on the output end of the cylinder (32), a movable mold (34) mounted on the bottom end of the piston rod (33), and the movable mold (34) penetrates and is arranged in a second limiting hole (21) opened on the upper mold base (2).

3. The quick-release mechanism for a plastic injection mold according to claim 1, characterized in that: The fixed die (4) is arranged to penetrate a first limiting hole (11) provided on the lower die base (1), and a buffer component (6) is provided on the lower die base (1) for buffering the impact force when the fixed die (4) is subjected to pressure.

4. The quick-release mechanism for a plastic injection mold according to claim 3, characterized in that: The buffer assembly (6) comprises a damping spring shock absorber (61) installed at the bottom of the fixed die (4) and a support plate (63) installed inside the lower die base (1); a rubber plate (62) is installed on the support plate (63); and one end of the damping spring shock absorber (61) is connected to the rubber plate (62).

5. The quick-release mechanism for a plastic injection mold according to claim 1, characterized in that: The locking assembly (55) comprises a mounting groove (551) provided on the first fixing plate (51), a slider (552) being slidably engaged with the mounting groove (551), a first mounting hole (553) being provided on the slider (552), a second mounting hole (554) being provided on the clamping block (54), and the second mounting hole (554) being fixedly connected to the first mounting hole (553) by bolts.

6. The quick-release mechanism for a plastic injection mold according to claim 1, characterized in that: A controller for controlling the electric components is installed on the lower die base (1).

Images