A rotary table type external opening and locking mold structure injection molding machine

Abstract

The utility model discloses a turntable type external mold locking structure injection molding machine, including a locking unit provided with a mold cylinder assembly, and also including a rotating disc with a mold lower half mold mounting structure, at least two workstations are arranged on the disc, and an external mold assembly independent of the locking unit is arranged on the workstation, and the external mold assembly includes a hanging template with a mold upper half mold mounting structure and an external mold cylinder assembly that drives the hanging template to move up and down. In the turntable type external mold locking structure injection molding machine, the mold opening and closing actions and the injection molding product actions are independently divided and performed at different workstations, which greatly saves the injection molding process time and greatly improves the production efficiency of the product. Different molds can be set on different external mold assemblies, so that different products can be completed together in the same process, realizing the versatility of the injection molding machine and high practical performance. The high cost problem caused by the use of magnetic templates to realize the mold opening and closing actions is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a rotary plate type injection molding machine with an external mold opening and locking structure. Background Art

[0002] The existing turntable injection molding machine needs to open and close the mold after the injection molding is completed. As a result, there are problems such as long injection molding process time and low product production efficiency. At the same time, since the mold opening process needs to be combined with a magnetic template to complete the mold opening and closing actions, the cost of the magnetic template is relatively high, which leads to high production costs.

[0003] In addition, the existing turntable injection molding machine uses a magnetic template to complete the mold opening and closing movement in the clamping area, which has the characteristic of being single and can only complete the injection molding of one product at a time, and cannot produce different products at the same time.

[0004] Therefore, it is urgent to modify the existing turntable injection molding machine to meet the requirements of practicality and diversity of the injection molding machine. At least two sets of different molds can be configured at the same time to complete the injection molding of different products in the same process, and it can save time in the injection molding process, improve production efficiency and reduce production costs. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the existing turntable type injection molding machine, such as long injection molding process time, low product production efficiency; only one product can be injection molded at one time, and different products cannot be produced at the same time; and high production cost, and to provide a turntable type external opening mold locking structure injection molding machine which has strong practicality and diverse functions, can produce different products at the same time, adopts an external opening mold structure to realize the opening and closing action of the mold, has a short injection molding process, high product production efficiency, and low cost.

[0006] The technical solution adopted by the utility model to achieve the purpose of the invention is: a turntable type external mold opening and locking structure injection molding machine, including a locking unit provided with a mold cylinder assembly, and also including a rotating disc with a mold lower half mold mounting structure, at least two workstations are arranged on the disc, and an external mold opening assembly independent of the locking unit is arranged on the workstation, and the external mold opening assembly includes a hanging plate with a mold upper half mold mounting structure and an external mold opening cylinder assembly that drives the hanging plate to move up and down. The rotary disc type external mold opening and locking structure injection molding machine, by setting an external mold opening component independent of the locking unit on the rotary disc, during the injection molding process, the locking unit only cooperates with the hanging template to generate high pressure during injection, and no longer undertakes the mold opening action, and the mold opening action is performed by moving the disk to the outside of the locking area, specifically, the external mold opening cylinder component drives the hanging template to move up and down, thereby realizing the mold opening and closing action, because the mold opening and closing action and the injection molding product action are independently divided and performed in different stations, the injection molding process time is greatly saved, and the production efficiency of the product is greatly improved. Since it is equipped with at least two stations, each station is respectively provided with an external mold opening component, and molds of different products can be respectively set on different external mold opening components, so that different products can be completed together in the same process, realizing the versatility of the injection molding machine and high practical performance. At the same time, since the mold opening and closing action of the external mold opening component is completed outside the locking area, no magnetic template is required to complete the mold opening and closing movement of the mold, which solves the high cost problem caused by the use of magnetic templates to realize the mold opening and closing action, and reduces the production cost.

[0007] Preferably, the hanging template is provided with an injection slot, and the lower plate surface of the hanging template is provided with a mold upper half mold positioning hole. The injection mold is provided on the hanging template, so that the upper screw barrel assembly can be injected into the mold through the injection slot to complete product molding during the injection process. In order to realize the external mold opening operation, the mold includes an upper mold and a lower mold. The upper mold is connected to the lower plate surface of the hanging template through the mold upper half mold positioning hole, and the external mold cylinder assembly drives the upper and lower movements to realize the mold opening and closing movement, thereby solving the problem that the existing turntable injection molding machine needs to use a magnetic template to complete the mold opening and closing action, resulting in high production costs.

[0008] Preferably, the outer mold cylinder assembly includes an outer mold cylinder sleeve and an outer mold cylinder core shaft, and the outer mold cylinder core shaft is slidably matched with the outer mold cylinder sleeve through an outer mold cylinder guide sleeve. The outer mold cylinder assembly mainly includes an outer mold cylinder sleeve and an outer mold cylinder core shaft, and the outer mold cylinder core shaft moves up and down to drive the hanging mold plate to move up and down, thereby driving the upper mold and the lower mold to realize the opening and closing movement. At the same time, in order to ensure the movement balance between the outer mold cylinder core shaft and the outer mold cylinder sleeve and increase the use strength, an outer mold cylinder guide sleeve is provided between the outer mold cylinder core shaft and the outer mold cylinder sleeve, which can realize a good guiding function and increase the use strength of the outer mold cylinder assembly.

[0009] Preferably, the outer mold cylinder assembly is connected to the lower disk surface of the disc through an outer mold cylinder upper cover and rotates with the disc, and the outer mold cylinder core shaft passes through the disc and is connected to the hanging template. The outer mold cylinder assembly is connected to the lower disk surface of the disc through an outer mold cylinder upper cover and rotates with the disc, thereby realizing the switching of workstations, and can perform injection molding in the clamping area at one time, and perform mold opening and closing in the mold opening area, which can greatly improve production efficiency and realize simultaneous injection molding of different products in the same process.

[0010] Preferably, the upper cover of the outer mold cylinder is arranged in a T-shaped reinforcement structure as a whole, and a guide sleeve installation cavity is arranged on the upper cover of the outer mold cylinder. The outer mold cylinder guide sleeve is installed inside the guide sleeve installation cavity and is locked and positioned by an outer mold cylinder guide sleeve pressure ring. The structure of the upper cover of the outer mold cylinder is to increase the strength and ensure the service life while achieving convenient connection.

[0011] Preferably, a plurality of mold lower half mold positioning holes are provided on the station of the disk. In order to facilitate the external mold setting of the mold, the mold lower half mold positioning holes are provided on the disk to facilitate the installation and positioning of the mold lower half mold. Since mold specifications and models of different products are different, a plurality of mold lower half mold positioning holes are provided to meet the installation and use of molds of different specifications.

[0012] Preferably, the mold cylinder assembly is used for high pressure injection molding machine, and the mold cylinder assembly includes a mold cylinder sleeve and a mold cylinder core shaft assembly. The mold cylinder sleeve adopts an integrated two-cylinder sleeve structure, and the mold cylinder core shaft assembly includes a mold cylinder core shaft. After the external mold assembly is set, the mold cylinder assembly is only used for high pressure injection of the injection molding machine, and no mold opening and closing actions are performed. Therefore, the mold cylinder sleeve adopts an integrated two-cylinder sleeve structure, which can increase the strength of use and increase the balance and consistency of the high pressure of injection. The mold cylinder core shaft drives the upper mold plate to move up and down and cooperates with the hanging mold plate to achieve high pressure, and the product is injection molded by the injection unit.

[0013] Preferably, the clamping unit further comprises an upper mold plate and a lower mold plate, and the upper mold plate and the lower mold plate are connected via a machine column.

[0014] Preferably, the mold cylinder sleeve is arranged on the machine column above the upper mold plate, and the mold cylinder core shaft is connected to the upper mold plate and drives the upper mold plate to move up and down to cooperate with the hanging mold plate to generate high pressure. The mold cylinder core shaft drives the upper mold plate to move up and down to cooperate with the upper end surface of the hanging mold plate to generate high pressure, and the product is injection molded by the injection unit. At the same time, the external mold assembly is used to open the mold at the material taking station to complete the product taking, and the external mold assembly is used to close the mold for the next time to wait for the injection molding station to complete the injection molding and continue the injection molding of the next mold, which can greatly improve the production efficiency.

[0015] Preferably, the outer circumference of the disc is provided with external teeth, and the disc is driven to rotate by a servo motor and a transmission gear provided on the servo motor. The rotation of the disc is driven by tooth meshing, the power transmission is stable, and accurate station switching can be achieved.

[0016] The beneficial effects of the utility model are as follows: the turntable type external mold opening and locking structure injection molding machine, the mold opening and closing actions and the injection molding product actions are performed independently at different workstations, which greatly saves the injection molding process time and greatly improves the production efficiency of the product. Different molds can be set on different external mold components, so that different products can be completed together in the same process, realizing the versatility of the injection molding machine and high practical performance. Since the mold opening and closing actions of the external mold components are completed outside the locking area, no magnetic template is required to complete the mold opening and closing movements, which solves the high cost problem caused by the use of magnetic templates to realize the mold opening and closing actions, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a rotary disc type external opening and locking mold structure injection molding machine.

[0018] FIG. 2 is a schematic diagram of the structure of the foreign and domestic mold opening components of the present invention.

[0019] FIG. 3 is a schematic structural diagram of the middle mold cylinder assembly of the present invention.

[0020] FIG. 4 is a structural schematic diagram of the injection molding machine of the utility model with a turntable type external opening mold locking structure in the injection state.

[0021] Figure 5 It is a structural schematic diagram of the disc in the utility model.

[0022] Figure 6 It is a structural schematic diagram of the foreign and domestic mold opening components and the screw barrel components of the utility model.

[0023] Figure 7 It is a structural schematic diagram of another angle of the turntable type external opening mold locking structure injection molding machine of the utility model.

[0024] In the figure: 1, clamping unit, 11, lower mold plate, 12, upper mold plate, 13, machine column, 14, machine column nut;

[0025] 2. Injection unit;

[0026] 3. External mold assembly, 31. Hanging mold plate, 32. Injection slot, 33. Positioning hole of upper mold half;

[0027] 4. mold cylinder assembly, 41. mold cylinder sleeve;

[0028] 5. disc, 51. work station, 52. positioning hole of the lower half of the mold, 53. external teeth;

[0029] 6. mold cylinder mandrel assembly, 61. mold cylinder mandrel, 62. mold cylinder upper cover, 63. mold cylinder lower cover, 64. mold cylinder mandrel clamping ring;

[0030] 7. Outward mold cylinder assembly, 71. Outward mold cylinder sleeve, 72. Outward mold cylinder mandrel, 73. Outward mold cylinder upper cover, 74. Outward mold cylinder lower cover, 75. Outward mold cylinder guide sleeve, 76. Outward mold cylinder guide sleeve pressure ring;

[0031] 8. Screw barrel assembly;

[0032] 9. Servo motor, 91. Transmission gear. DETAILED DESCRIPTION

[0033] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0034] Embodiment 1:

[0035] exist Figure 1 , Figure 2 In the illustrated embodiment, a rotary disc type external mold opening and clamping structure injection molding machine comprises a clamping unit 1 provided with a mold cylinder assembly 4, a rotating disc 5 with a mold lower half mold mounting structure, at least two workstations 51 are arranged on the disc 5, an external mold opening assembly 3 independent of the clamping unit 1 is arranged on the workstation 51, the external mold opening assembly 3 comprises a hanging mold plate 31 with a mold upper half mold mounting structure and an external mold opening cylinder assembly 7 for driving the hanging mold plate 31 to move up and down.

[0036] The hanging template 31 is provided with an injection slot 32 , and the lower plate surface of the hanging template is provided with a mold upper half mold positioning hole 33 .

[0037] The outer mold cylinder assembly 7 includes an outer mold cylinder sleeve 71 and an outer mold cylinder core shaft 72. The outer mold cylinder core shaft 72 is slidably matched with the outer mold cylinder sleeve 71 through an outer mold cylinder guide sleeve 75. The outer mold cylinder assembly 7 is connected to the lower disk surface of the disc through an outer mold cylinder upper cover 73 and rotates with the disc 5. The outer mold cylinder core shaft 72 passes through the disc 5 and is connected to the hanging template 31.

[0038] The outer mold cylinder upper cover 73 is an overall T-shaped reinforced structure. A guide sleeve installation cavity is provided on the outer mold cylinder upper cover 73. The outer mold cylinder guide sleeve 75 is installed inside the guide sleeve installation cavity and is locked and positioned by an outer mold cylinder guide sleeve pressure ring 76.

[0039] like Figure 5As shown, a plurality of lower mold positioning holes 52 are arranged on the station 51 of the disk 5. External teeth 53 are arranged on the outer circumference of the disk 5, and the disk is driven to rotate by a servo motor and a transmission gear arranged on the servo motor.

[0040] like Figure 3 As shown, the mold cylinder assembly 4 is used for high pressure injection molding machine. The mold cylinder assembly 4 includes a mold cylinder sleeve 41 and a mold cylinder core shaft assembly 6. The mold cylinder sleeve 41 adopts an integrated two-cylinder sleeve structure, and the mold cylinder core shaft assembly 6 includes a mold cylinder core shaft 61.

[0041] The clamping unit 1 further comprises an upper mold plate 12 and a lower mold plate 11 , and the upper mold plate and the lower mold plate are connected via a machine column 13 .

[0042] The mold cylinder sleeve 41 is arranged on the machine column 13 above the upper mold plate 12. Figure 4 As shown, the mold cylinder core shaft 61 is connected to the upper mold plate 12 and drives the upper mold plate 12 to move up and down to cooperate with the hanging mold plate 31 to generate high pressure.

[0043] In the turntable type outward opening mold locking structure injection molding machine, the mold used for product injection molding includes an upper mold half and a lower mold half, and the upper mold half and the lower mold half are arranged in pairs, and each mold forms a complete product mold, that is, the mold on each station is a complete mold, which can be used to injection mold a complete product. Therefore, different products can be produced by one injection molding in the injection molding process.

[0044] The rotary disc type external mold opening and locking structure injection molding machine also includes a locking unit, an injection unit, a screw barrel assembly, an electrical assembly, and other contents not specifically described, all of which can adopt existing technologies.

[0045] In this embodiment, the turntable type external mold opening and locking structure injection molding machine, by setting at least two external mold opening assemblies, only performs high-pressure injection molding at the injection molding station, and the mold opening operation is rotated to the material taking station. Injection molding and material taking can be carried out simultaneously at different stations, which greatly improves production efficiency and shortens the injection molding process time of the injection molding machine. The mold cylinder assembly only works when high pressure is applied, and the mold opening action is completed by the external mold opening assembly at the material taking station. During the mold opening process, the injection molding station performs injection molding of the next mold in the locking area, alternating between the two, and the operation is more convenient and efficient.

[0046] At the same time, the practical diversity of the injection molding machine is improved, and the functions are richer. Two sets of complete molds for different products can be configured. The two sets of molds are respectively arranged on different hanging templates and corresponding workstations of the disc, and two different products can be injected at the same time. Since the opening and closing of the molds are completed in the external mold assembly, each external mold assembly is independent, which is different from the standard disc machine in the prior art that one upper mold corresponds to two lower molds. The turntable type external mold locking structure injection molding machine can be equipped with two independent sets of molds for different products at the same time, and different products can be produced at the same time, realizing the versatility of the injection molding machine.

[0047] Embodiment 2:

[0048] exist Figure 6 , Figure 7 In the illustrated embodiment, a rotary disk type external mold opening and clamping structure injection molding machine comprises a clamping unit 1 , an injection unit 2 and an external mold opening assembly 3 .

[0049] The clamping unit 1 comprises a lower mold plate 11, an upper mold plate 12, a machine column 13 disposed between the upper mold plate 12 and the lower mold plate 11, and a mold cylinder assembly 4.

[0050] The rotary disc type external mold opening and locking structure injection molding machine further comprises a rotating disc 5, and the disc 5 is used to realize the switching of workstations, so that mold closing injection and mold opening and material taking can be performed at different workstations.

[0051] The mold cylinder assembly 4 includes a mold cylinder sleeve 41 and a mold cylinder core shaft assembly 6. The mold cylinder sleeve 41 adopts an integrated structure, and two sets of mold cylinder core shaft assemblies 6 are arranged on the same mold cylinder sleeve 41, and each set of mold cylinder core shaft assembly 6 includes a mold cylinder core shaft 61, a mold cylinder upper cover 62, a mold cylinder lower cover 63 and a mold cylinder core shaft clamping ring 64.

[0052] The machine column 13 passes through the upper mold plate 12 , the mold cylinder sleeve 41 is connected and fixed to the upper end of the machine column 13 through the machine column nut 14 , and the mold cylinder core shaft 61 is connected to the upper mold plate 12 through the mold cylinder core shaft retaining ring 64 .

[0053] The disc 5 is rotatably arranged on the lower mold plate 11 through a bearing, and can rotate relative to the lower mold plate 11. At least two workstations 51 are symmetrically arranged on the disc 5. When one of the workstations is in the mold locking area, i.e., the injection molding area, it becomes an injection molding workstation, and when the other workstation is in the material taking area, i.e., the outer mold opening area, it becomes a material taking workstation. The disc 5 is provided with disc outer teeth 53. The disc 5 is driven to rotate by a servo motor 9, and a transmission gear 91 is arranged on the output shaft of the servo motor 9. In this embodiment, two workstations are arranged on the disc, and a plurality of dry mold lower half mold positioning holes 52 are arranged on each workstation 51.

[0054] The injection unit 2 is mounted on the upper mold plate 12. The injection unit 2 includes a screw barrel assembly 8.

[0055] The outer mold assembly 3 is arranged on the station 51 of the disk 5, and at least two groups are arranged in a symmetrical structure. The outer mold assembly 3 is arranged at different stations 51, at least one of which is at the injection station and the other is at the material taking station.

[0056] Each set of external mold assembly 3 includes a hanging mold plate 31 and an external mold cylinder assembly 7. Two sets of external mold cylinder assemblies 7 are provided. The two sets of external mold cylinder assemblies 7 are respectively arranged below the two ends of the hanging mold plate 31. The hanging mold plate 31 is arranged above the disc 5. An injection slot 32 is arranged on the hanging mold plate 31.

[0057] The outer mold cylinder assembly 7 includes an outer mold cylinder sleeve 71, an outer mold cylinder core shaft 72, an outer mold cylinder upper cover 73, an outer mold cylinder lower cover 74, an outer mold cylinder guide sleeve 75 and an outer mold cylinder guide sleeve pressure ring 76. The outer mold cylinder upper cover 73 is installed on the upper end of the outer mold cylinder sleeve 71, the outer mold cylinder lower cover 74 is installed on the lower end of the outer mold cylinder sleeve 71, the outer mold cylinder core shaft 72 is arranged inside the outer mold cylinder sleeve 71 and extends out of the outer mold cylinder upper cover 73, the outer mold cylinder guide sleeve 75 is arranged on the outer mold cylinder core shaft 72 and connected to the outer mold cylinder upper cover 73, and the outer mold cylinder guide sleeve 75 is pressed on the outer mold cylinder upper cover 73 through the outer mold cylinder guide sleeve pressure ring 76. The upper end of the outer mold cylinder core shaft 72 is connected to the hanging template 31.

[0058] The outer mold assembly 3 is connected to the disc 5 through the outer mold cylinder upper cover 73 and is installed on the lower disk surface of the disc 5. The outer mold cylinder core shaft 72 passes through the disc 5 and is connected to the hanging template 31.

[0059] When in use, the upper mold is mounted on the lower plane of the hanging mold plate 31, and the lower mold is mounted on the upper plane of the disc 5. The outer mold opening cylinder core shaft 72 moves up and down to drive the hanging mold plate 31 to move up and down, thereby driving the upper mold to realize the opening and closing movement with the lower mold.

[0060] The outer mold assembly 3 acts on the opening and closing of the mold. Since at least two groups of outer mold assemblies 3 are arranged on the disc 5, when the injection molding product is completed, the outer mold assembly 3 that has been completed by injection molding is rotated out of the injection molding station in the locking area by rotating the disc 5, so that the opening and closing of the mold is carried out outside the locking area, which saves the time of the entire injection molding process of the injection molding machine.

[0061] The mold cylinder assembly 4 acts on the high-pressure action of the injection molding machine. When the disc 5 rotates to drive the mold on the outer mold assembly 3 to enter the mold closing range, the mold cylinder core shaft 61 drives the upper mold plate 12 to move downward, and the upper mold plate 12 supports the hanging mold plate 31 to play the role of high pressure. Because it only acts on high pressure, no mold opening action is required, only part of the upward movement stroke is required to separate the upper mold plate 12 from the hanging mold plate 31, which greatly shortens the opening and closing time of the mold cylinder assembly 4.

[0062] The working process of the turntable type external opening mold locking structure injection molding machine is as follows:

[0063] When the upper template 12 is pressed down to the upper end surface of the hanging template 31, high pressure is generated, and the injection unit 2 injection-moldes the product. The upper template 12 moves up and away from the end surface of the hanging template 31, and the disc 5 rotates to rotate the mold on the other outer mold assembly 3 to the injection molding station. The injection molding station continues the previous operation. At the same time, the outer mold assembly 3 of the material taking station opens the mold to complete the product taking, the outer mold closing, and other injection molding stations complete the injection molding and continue the injection molding of the next mold.

[0064] The rotary disc type external mold opening and locking structure injection molding machine, by setting at least two external mold opening components, only performs high pressure injection molding at the injection molding station, and the mold opening operation is rotated to the material taking station for execution. Injection molding and material taking can be performed at different stations at the same time, which greatly improves production efficiency and shortens the injection molding process time of the injection molding machine. The mold cylinder component only works when high pressure is applied, and the mold opening and mold action is completed by the external mold opening component at the material taking station. During the mold opening process, the injection molding station performs injection molding of the next mold in the locking area, and the operation is carried out alternately, which is more convenient and efficient. At the same time, the practical diversity of the injection molding machine is improved, and the functions are more abundant. Two sets of molds of different products can be configured, and at least two different products can be injected at the same time. Since the opening and closing of the molds are completed in the external mold opening component, each external mold opening component is independent. Different from the standard disc machine in the prior art, which has one upper mold corresponding to two lower molds, the rotary disc type external mold opening and locking structure injection molding machine can be equipped with two sets of independent molds of different products at the same time, and different products can be produced at the same time, realizing the versatility of the injection molding machine.

[0065] The rotary disc type external mold opening and locking structure injection molding machine improves production efficiency and shortens the injection molding process time of the injection molding machine. The mold cylinder assembly only works when high pressure is applied, and the mold opening action is completed by the external mold opening assembly. During the mold opening process, the locking area performs injection molding of the next mold. The practical diversity of the machine is improved, and the functions are richer. Two sets of different molds can be configured. Since the mold opening and closing are completed in the external mold opening assembly, each external mold opening assembly is independent. Unlike the existing standard disc machine with one upper mold for two lower molds, it can be equipped with two independent molds at the same time, and different products can be produced at the same time.

[0066] The above embodiments are only some of the embodiments of the utility model, not all of them. At the same time, based on the embodiments described in the utility model, all other embodiments obtained by ordinary technicians in this field on the basis of the technical solution of this application without creative work should fall within the scope of protection of the utility model.

Claims

1. A rotary plate type external opening mold clamping structure injection molding machine, comprising a clamping unit (1) provided with a mold cylinder assembly (4), characterized in that: It also includes a rotating disc (5) with a mold lower half mold mounting structure, at least two workstations (51) are arranged on the disc (5), and an external mold opening component (3) independent of the mold clamping unit (1) is arranged on the workstation (51), and the external mold opening component (3) includes a hanging mold plate (31) with a mold upper half mold mounting structure and an external mold opening cylinder component (7) that drives the hanging mold plate (31) to move up and down.

2. The rotary disc type external mold opening and locking structure injection molding machine according to claim 1, characterized in that: The hanging template (31) is provided with an injection slot (32), and the lower plate surface of the hanging template (31) is provided with a mold upper half mold positioning hole (33).

3. The rotary table type external mold opening and locking structure injection molding machine according to claim 1 is characterized in that: The outer mold cylinder assembly (7) comprises an outer mold cylinder sleeve (71) and an outer mold cylinder core shaft (72), and the outer mold cylinder core shaft (72) is slidably matched with the outer mold cylinder sleeve (71) via an outer mold cylinder guide sleeve (75).

4. The rotary disc type external mold opening and locking structure injection molding machine according to claim 3 is characterized in that: The outer mold cylinder assembly (7) is connected to the lower surface of the disc through an outer mold cylinder upper cover (73) and rotates together with the disc. The outer mold cylinder core shaft (72) passes through the disc and is connected to the hanging template (31).

5. The rotary disc type external mold opening and locking structure injection molding machine according to claim 4, characterized in that: The outer mold cylinder upper cover (73) is arranged as a T-shaped reinforced structure as a whole. A guide sleeve installation cavity is arranged on the outer mold cylinder upper cover (73). The outer mold cylinder guide sleeve (75) is installed inside the guide sleeve installation cavity and is locked and positioned by an outer mold cylinder guide sleeve pressure ring (76).

6. The rotary disc type external mold opening and locking structure injection molding machine according to claim 1, characterized in that: A plurality of lower mold half positioning holes (52) are provided on the work station (51) of the disc (5).

7. The rotary disc type external opening and locking mold structure injection molding machine according to any one of claims 1 to 6, characterized in that: The mold cylinder assembly (4) is used for high pressure injection molding machines. The mold cylinder assembly (4) comprises a mold cylinder sleeve (41) and a mold cylinder core shaft assembly (6). The mold cylinder sleeve (41) is arranged in an integrated two-cylinder sleeve structure. The mold cylinder core shaft assembly (6) comprises a mold cylinder core shaft (61).

8. The rotary disc type external mold opening and locking structure injection molding machine according to claim 7, characterized in that: The clamping unit (1) further comprises an upper mold plate (12) and a lower mold plate (11), wherein the upper mold plate (12) and the lower mold plate (11) are connected via a machine column (13).

9. The rotary disc type external mold opening and locking structure injection molding machine according to claim 8, characterized in that: The mold cylinder sleeve (41) is arranged on a machine column (13) above the upper mold plate (12), and the mold cylinder core shaft (61) is connected to the upper mold plate (12) and drives the upper mold plate (12) to move up and down to cooperate with the hanging mold plate (31) to generate high pressure.

10. The rotary table type external opening and locking mold structure injection molding machine according to any one of claims 1 to 6, characterized in that: External teeth (53) are arranged on the outer circumference of the disc (5), and the disc (5) is driven to rotate by a servo motor (9) and a transmission gear (91) arranged on the servo motor.

Images