Plastic mold with mold core convenient to replace

Abstract

The utility model discloses a plastic mold convenient for replacing a mold core, which belongs to the technical field of plastic molds, aims at solving the problems that the connection stability is poor and the mold core is inconvenient to take out from a lower mold in the mold core replacement process, and comprises a mounting plate, a supporting plate, a connecting plate, a hydraulic rod, an upper mold and a lower mold, the connecting plate is connected with the mounting plate through the supporting plate, the hydraulic rod is fixedly mounted at the top of the connecting plate, the upper die is arranged between the mounting plate and the connecting plate through the hydraulic rod, the lower die is fixedly mounted at the top of the mounting plate and below the upper die, and a mounting block is arranged in the lower die and used for mounting a die core. A dismounting mechanism is arranged at the lower part of the mounting block and is arranged at the inner bottom of the lower die; according to the utility model, through the matching of the upper die and the lower die, the stability of the die can be kept when a plastic product is processed, so that the molding quality of the plastic product is improved, and the plastic product is convenient to process and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic molds, and particularly relates to a plastic mold with a mold core that is convenient for replacing. Background Art

[0002] Plastic mold is the abbreviation of a combined mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding: the coordinated changes of the mold convex, concave mold and auxiliary molding system can process a series of plastic parts of different shapes and sizes.

[0003] The prior art patent announcement number CN221417158U is a plastic mold that is easy to replace the mold core. The above patent includes a bottom plate and a vertical rod. The two vertical rods are fixedly arranged on both sides of the upper surface of the bottom plate. The upper ends of the two vertical rods are fixedly provided with a top plate. The upper surface of the top plate is fixedly provided with a hydraulic cylinder. The end of the piston rod of the hydraulic cylinder extends to the bottom of the top plate. The end of the piston rod of the hydraulic cylinder is fixedly provided with an upper mold; vertical plates are fixedly provided on both sides of the upper surface of the bottom plate, and a rotating rod is rotatably provided between the two vertical plates. The rod wall of the rotating rod is fixedly sleeved with a rotating block: both sides of the rotating block are provided with mounting holes. The mounting groove has a mold core clamped inside, and a socket is provided at the bottom of the mounting groove. A plug rod is fixedly provided at the bottom of the mold core, and the plug rod is plugged into the corresponding socket; it can save time and effort to replace the mold core, and is convenient for producing different types of products, but there are still the following deficiencies in actual use: From a practical point of view, after the mold core is replaced, the lower mold is connected and used through a rotating rod. This connection method will lead to poor stability in the plastic product molding process, thereby affecting the molding quality of the plastic product. At the same time, it is not convenient to remove the mold core from the lower mold during the replacement of the mold core, thereby reducing its replacement efficiency.

[0004] Therefore, a plastic mold that is easy to replace the mold core is needed to solve the problems of poor connection stability and inconvenience in removing the mold core from the lower mold during the replacement of the mold core in the prior art. Utility Model Content

[0005] The purpose of the present invention is to provide a plastic mold that is easy to replace the mold core, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic mold that is convenient for replacing the mold core, comprising a mounting plate, a support plate, a connecting plate, a hydraulic rod, an upper mold and a lower mold, wherein the connecting plate is connected to the mounting plate through the support plate, the hydraulic rod is fixedly mounted on the top of the connecting plate, the upper mold is arranged between the mounting plate and the connecting plate through the hydraulic rod, the lower mold is fixedly mounted on the top of the mounting plate and is arranged below the upper mold, a mounting block is provided in the lower mold for installing the mold core, and a disassembly and assembly mechanism is provided at the lower part of the mounting block and is arranged at the bottom of the lower mold.

[0007] The top end face of the lifting pin is fixedly provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip, and the bottom end face of the lifting pin is connected with the toothed connecting strip by the toothed connecting strip.

[0008] It should be noted in the solution that four clamping rods are provided in the lower die, and the four clamping rods are evenly distributed in the lower die.

[0009] It is further worth mentioning that the outer surface of the connecting plate is set as an arc surface, the protrusion is set as an arc surface, four protrusions are set on the connecting disk, and the four protrusions are evenly distributed on the connecting disk and are set corresponding to the connecting plate.

[0010] It should be further explained that the disassembly and assembly mechanism also includes a limit groove, which is opened on the connecting disk and passes through the connecting shaft. A movable rod is slidably arranged in the limit groove, and a baffle is fixedly connected to the top of the movable rod. A second spring is sleeved on the outside of the movable rod and is arranged between the baffle and the connecting disk.

[0011] As a preferred embodiment, the cross section of the limiting groove is arranged in a cross shape.

[0012] As a preferred embodiment, the four side surfaces of the mounting block are provided with bayonet holes matching the clamping rods.

[0013] Compared with the prior art, the plastic mold provided by the present invention is easy to replace the mold core, which has at least the following beneficial effects:

[0014] (1) Through the cooperation of the upper mold and the lower mold, the stability of the mold can be maintained during the processing of the plastic product, thereby improving the molding quality of the plastic product and facilitating processing and use.

[0015] (2) The disassembly and assembly mechanism can be used to quickly and conveniently remove the mold core when replacing it, thereby facilitating the replacement operation and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal cutaway structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the partial cutaway structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the disassembly structure of the disassembly and assembly mechanism of the utility model.

[0020] In the figure: 1. Mounting plate; 2. Support plate; 3. Connecting plate; 4. Hydraulic rod; 5. Upper die; 6. Lower die; 7. Mounting block; 701. Bayonet; 8. Disassembly and assembly mechanism; 801. Mounting groove; 802. Connecting rod; 803. Connecting plate; 804. Limiting slide bar; 805. First spring; 806. Connecting shaft; 807. Connecting plate; 808. Protrusion; 809. Limiting groove; 8010. Movable rod; 8011. Baffle; 8012. Second spring; 8013. Gear; 8014. Rack; 8015. Connecting rod; 8016. Pull block. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the embodiments.

[0022] See also Figure 1-4 The utility model provides a plastic mold which is convenient for replacing the mold core, comprising a mounting plate 1, a support plate 2, a connecting plate 3, a hydraulic rod 4, an upper mold 5 and a lower mold 6. The connecting plate 3 is connected to the mounting plate 1 through the support plate 2, the hydraulic rod 4 is fixedly mounted on the top of the connecting plate 3, the upper mold 5 is arranged between the mounting plate 1 and the connecting plate 3 through the hydraulic rod 4, the lower mold 6 is fixedly mounted on the top of the mounting plate 1 and is arranged below the upper mold 5, a mounting block 7 is provided in the lower mold 6 for installing the mold core, and a disassembly mechanism 8 is provided at the lower part of the mounting block 7 and is arranged at the bottom of the lower mold 6.

[0023] The cooperation between the upper mold 5 and the lower mold 6 can ensure that the stability of the mold is maintained during the processing of the plastic product, thereby improving the molding quality of the plastic product and facilitating processing and use.

[0024] Further as Figure 2 、 Figure 3 and Figure 4 As shown, it is worth mentioning that the disassembly and assembly mechanism 8 includes a mounting groove 801, which is opened inside the lower mold 6 and is arranged below the mounting block 7. A clamping rod 802 is slidingly provided in the mounting groove 801, and a limiting slide bar 804 is slidingly provided on the clamping rod 802. The limiting slide bar 804 is connected to the lower mold 6 at one end near the inner side of the lower mold 6, and a first spring 805 is sleeved on the outer side of the limiting slide bar 804 and is arranged between the clamping rod 802 and the lower mold 6. The bottom of the other side of the clamping rod 802 is fixedly connected to a connecting plate 803, and the other side of the connecting plate 803 is provided with a connecting disk 807. The outer periphery of the connecting disk 807 is fixedly connected to a protrusion 808, and the bottom of the connecting disk 807 is fixedly connected to a connecting shaft 806. It is rotatably installed in the lower mold 6 through a bearing, the bottom end of the connecting shaft 806 is fixedly connected to a gear 8013, and a rack 8014 is meshed on the right side of the gear 8013. The front end of the rack 8014 is fixedly connected to a connecting rod 8015 and is slidably arranged in the lower mold 6, and the front end of the connecting rod 8015 is fixedly connected to a pull block 8016 and is arranged on the outside of the lower mold 6. Four clamping rods 802 are arranged in the lower mold 6, and the four clamping rods 802 are evenly distributed in the lower mold 6. The outer surface of the connecting plate 803 is arranged in an arc-shaped surface, and the protrusion 808 is arranged in an arc-shaped surface. Four protrusions 808 are arranged on the connecting disk 807, and the four protrusions 808 are evenly distributed on the connecting disk 807 and are arranged corresponding to the connecting plate 803.

[0025] During use, by pulling the pull block 8016, the connecting rod 8015 slides in the lower mold 6, thereby driving the rack 8014 to slide in the lower mold 6, and the gear 8013 is driven to rotate through the rack 8014, and then the connecting shaft 806 rotates to drive the connecting disk 807 to rotate, so that the protrusion 808 rotates to squeeze and slide the connecting plate 803, so that the connecting plate 803 pushes the clamping rod 802 to slide on the limiting slide rod 804, so that the clamping rod 802 squeezes the first spring 805. At this time, the clamping rod 802 disengages from the bayonet 701, thereby releasing the clamping limit of the mounting block 7, which is convenient for replacement.

[0026] Further as Figure 4 As shown, it is worth mentioning that the disassembly and assembly mechanism 8 also includes a limiting groove 809, which is provided on the connecting disk 807 and passes through the connecting shaft 806. A movable rod 8010 is slidably arranged in the limiting groove 809, and a baffle 8011 is fixedly connected to the top of the movable rod 8010. A second spring 8012 is provided on the outer side of the movable rod 8010 and is provided between the baffle 8011 and the connecting disk 807. The cross-section of the limiting groove 809 is a cross.

[0027] During use, under the elastic force of the second spring 8012, the baffle 8011 slides in the limit groove 809 through the 810 mounting plate 1, thereby pushing the mounting block 7 to slide upward through the baffle 8011, thereby facilitating the replacement of the mold core and improving the ease of use of the device.

[0028] Further as Figure 2 and Figure 3 As shown, it is worth mentioning that the four side surfaces of the mounting block 7 are provided with bayonet holes 701 matching with the clamping rod 802 .

[0029] This solution has the following working process: when this device is used, the upper mold 5 and the lower mold 6 cooperate to facilitate the processing of plastic products. The mold core is set in the lower mold 6 through the installation block 7, and the installation block 7 is installed in the lower mold 6 through the bayonet 701 and the clamping rod 802. At the same time, the baffle 8011 is squeezed by the installation block 7, so that the baffle 8011 slides in the limit groove 809 through the movable rod 8010, so that the second spring 8012 is elastically deformed, and the clamping of the clamping rod 802 to the bayonet 701 allows the installation block 7 to remain stable in the lower mold 6. After the processing of the plastic product is completed, when the mold core needs to be replaced, the pulling block 8016 is pulled to make the connecting rod 8015 slide in the lower mold 6, thereby driving the gear The bar 8014 slides in the lower mold 6, and drives the gear 8013 to rotate through the rack 8014, thereby causing the connecting shaft 806 to rotate and drive the connecting disk 807 to rotate, so that the protrusion 808 rotates to squeeze and slide the connecting plate 803, so that the connecting plate 803 pushes the clamping rod 802 to slide on the limiting slide rod 804, so that the clamping rod 802 squeezes the first spring 805. At this time, the clamping rod 802 disengages from the bayonet 701, thereby releasing the clamping limit of the mounting block 7. Under the elastic force of the second spring 8012, the baffle 8011 slides in the limiting groove 809 through the 810 mounting plate 1, thereby pushing the mounting block 7 to slide upward through the baffle 8011, thereby facilitating the replacement of the mold core and improving the ease of use of the device.

[0030] In summary: through the cooperation of the upper mold 5 and the lower mold 6, the stability of the mold can be maintained during the processing of the plastic product, thereby improving the molding quality of the plastic product, so as to facilitate processing and use; through the disassembly and assembly mechanism 8, the mold core can be quickly and conveniently removed when the mold core is replaced, thereby facilitating the replacement operation and improving the practicality of the device.

Claims

1. A plastic mold for facilitating mold core replacement, comprising a mounting plate (1), a support plate (2), a connecting plate (3), a hydraulic rod (4), an upper mold (5) and a lower mold (6), wherein the connecting plate (3) is connected to the mounting plate (1) via the support plate (2), the hydraulic rod (4) is fixedly mounted on the top of the connecting plate (3), the upper mold (5) is arranged between the mounting plate (1) and the connecting plate (3) via the hydraulic rod (4), and the lower mold (6) is fixedly mounted on the top of the mounting plate (1) and arranged below the upper mold (5), characterized in that: A mounting block (7) is provided in the lower mold (6) for mounting the mold core, and a disassembly mechanism (8) is provided at the lower portion of the mounting block (7) and is located at the inner bottom of the lower mold (6); The disassembly and assembly mechanism (8) includes a mounting groove (801), the mounting groove (801) is opened inside the lower mold (6) and is arranged below the mounting block (7), a clamping rod (802) is slidably arranged in the mounting groove (801), a limiting slide bar (804) is slidably arranged on the clamping rod (802), the limiting slide bar (804) is connected to the lower mold (6) at one end close to the inner side of the lower mold (6), a first spring (805) is sleeved on the outer side of the limiting slide bar (804) and is arranged between the clamping rod (802) and the lower mold (6), a connecting plate (803) is fixedly connected to the bottom of the other side of the clamping rod (802), and the connecting plate A connecting disk (807) is provided on the other side of (803), and a protrusion (808) is fixedly connected to the outer periphery of the connecting disk (807), and a connecting shaft (806) is fixedly connected to the bottom of the connecting disk (807) and is rotatably installed in the lower mold (6) through a bearing, and a gear (8013) is fixedly connected to the bottom end of the connecting shaft (806), and a rack (8014) is meshed with the right side of the gear (8013), and the front end of the rack (8014) is fixedly connected to a connecting rod (8015) and is slidably provided in the lower mold (6), and the front end of the connecting rod (8015) is fixedly connected to a pull block (8016) and is provided on the outside of the lower mold (6).

2. A plastic mold for easy core replacement according to claim 1, characterized in that: Four of the clamping rods (802) are provided in the lower mold (6), and the four clamping rods (802) are evenly distributed in the lower mold (6).

3. A plastic mold for easy core replacement according to claim 2, characterized in that: The outer surface of the connecting plate (803) is arranged in an arc-shaped surface, and the protrusion (808) is arranged in an arc-shaped surface. Four protrusions (808) are arranged on the connecting disk (807). The four protrusions (808) are evenly distributed on the connecting disk (807) and are arranged corresponding to the connecting plate (803).

4. A plastic mold for facilitating mold core replacement according to claim 3, characterized in that: The disassembly and assembly mechanism (8) further comprises a limiting groove (809), the limiting groove (809) being provided on the connecting disk (807) and penetrating the connecting shaft (806), a movable rod (8010) being slidably provided in the limiting groove (809), a baffle (8011) being fixedly connected to the top end of the movable rod (8010), and a second spring (8012) being sleeved on the outer side of the movable rod (8010) and being provided between the baffle (8011) and the connecting disk (807).

5. The plastic mold for facilitating mold core replacement according to claim 4, characterized in that: The cross section of the limiting groove (809) is arranged in a cross shape.

6. The plastic mold for facilitating mold core replacement according to claim 5, characterized in that: The four side surfaces of the mounting block (7) are provided with bayonet holes (701) that match the bayonet rods (802).

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