Vertical glue injection machine

Abstract

The invention discloses a vertical glue injection machine, and belongs to the technical field of cable production equipment. The vertical glue injection machine comprises an outer frame, a driving mechanism, a vertical mold mechanism and an ejection mechanism, the driving mechanism comprises a first driving assembly, a second driving assembly and a third driving assembly; the vertical mold mechanism comprises an upper module assembly, a middle module assembly, a lower module assembly and core rods, the upper module assembly, the middle module assembly and the lower module assembly are sequentially spliced to form at least one mold cavity in the vertical mold mechanism, and one core rod is coaxially arranged in each mold cavity; the third driving assembly is in transmission connection with the first driving assembly and drives the first driving assembly to slide; the first driving assembly is slidably arranged at the top of the outer frame and is in transmission connection with the upper module assembly to drive the upper module assembly to move; the second driving assembly is arranged on the outer frame, is in transmission connection with the middle module assembly and drives the middle module assembly to move; and the ejection mechanism for demolding is arranged at the bottom of the mold cavity.

Description

Technical Field

[0001] The invention relates to the technical field of cable production equipment, in particular to a vertical glue injection machine. Background Art

[0002] Cable intermediate joints are an indispensable part of high-voltage cable systems. They are used to connect two sections of cables to ensure the continuity and safety of power transmission. During cable laying, if a single cable is not long enough, an intermediate joint is required to connect the two cables to maintain the smooth flow of the line, maintain the sealing of the cable, and ensure that the joints meet the corresponding insulation standards, thereby ensuring the safety and reliability of power transmission.

[0003] With the development of the domestic cable accessories manufacturing industry, the production technology of insulating components has become mature. Figure 7 At present, silicone rubber or EPDM is mainly used as the insulating material, and the semi-conductive stress cone ①, semi-conductive high-voltage shielding tube ③, and semi-conductive outer shielding tube ② are formed by the split mold, and then assembled into the mold for injection of insulating glue. After that, it is heated and cured in an oven or clamping tooling, and finally after cooling, demoulding, and flash removal, a product that meets the standards is produced.

[0004] The intermediate joint glue injection machine is an automated equipment specially used in the wire and cable industry, mainly used for the insulation and sealing of the cable intermediate joints. The equipment injects high-quality insulating materials into the cable joints through an automated process, ensuring that the joints have good electrical insulation performance and are waterproof, moisture-proof and corrosion-resistant, thereby extending the service life of the cable joints and ensuring the safety and stability of power transmission. The glue injection machine also has the function of accurately controlling the glue injection amount, pressure and speed, which significantly improves the efficiency and quality of cable joint production.

[0005] However, in the actual production process, the rubber insulation part of the intermediate joint still needs to be manually injected into the mold and vulcanized at high temperature. This usually involves a series of steps such as manual mold closing, tightening the mold, placing it in an oven for vulcanization, cooling after vulcanization, opening the mold, and cleaning the mold. Since manual operation of mold closing and opening is required, it not only increases labor intensity, but also reduces production efficiency.

[0006] In addition, the traditional rubber finished intermediate joint is heated and injected through a steel mold, and a parting line will inevitably appear on the surface of the finished product. Especially for horizontal injection machines, half of the mold is fixed on one side of the machine, and the other half is installed on a sliding template. The mold is closed and opened by the horizontal movement of the template. This design leaves a clear parting line in the middle of the finished intermediate joint, which not only affects the appearance but may also affect the function of the product. When used outdoors, the parting line is prone to accumulate dirt and age due to ultraviolet radiation, resulting in a decrease in mechanical properties at the parting line and unstable electrical properties. In particular, the parting seam formed in the shielding tube of the high-voltage joint may produce flash and require additional grinding, and the unevenness of the grinding quality will further affect the performance of the product.

[0007] In view of the above problems, the use of cable accessories with parting lines has been banned, especially in cities such as Beijing and Shanghai, which puts forward higher technical and process requirements for the cable accessories manufacturing industry.

[0008] Therefore, the present invention designs a vertical glue injection machine to solve the above problems. Summary of the invention

[0009] The purpose of the present invention is to provide a vertical glue injection machine to solve the technical problems mentioned in the above background technology.

[0010] The technical scheme for achieving the purpose of the present invention is: a vertical glue injection machine, including an outer frame, a driving mechanism, a vertical mold mechanism, and an ejection mechanism; the driving mechanism includes a first driving assembly, a second driving assembly, and a third driving assembly; the vertical mold mechanism includes an upper module assembly, a middle module assembly, a lower module assembly, and a core rod for fixing a semi-conductive high-voltage shielding tube, and the upper module assembly, the middle module assembly, and the lower module assembly are sequentially spliced ​​to form at least one mold cavity in the vertical mold mechanism, and a core rod is coaxially arranged in each mold cavity; the third driving assembly is transmission-connected to the first driving assembly, and the third driving assembly drives the first driving assembly to slide on the top of the outer frame; the first driving assembly is slidably arranged on the top of the outer frame, the first driving assembly is transmission-connected to the upper module assembly, and the first driving assembly drives the upper module assembly to move; the second driving assembly is arranged on the outer frame, the second driving assembly is transmission-connected to the middle module assembly, and the second driving assembly drives the middle module assembly to move; the ejection mechanism for demolding is arranged at the bottom of the mold cavity.

[0011] When the vertical glue injection machine of the present invention is closing the mold, the second drive assembly is first started to move the middle module assembly, and the middle module assembly is spliced ​​with the lower module assembly, and then the third drive assembly is started to slide the first drive assembly to the corresponding position above the aforementioned middle module assembly, and then the first drive assembly is started to move the upper module assembly, and the upper module assembly is spliced ​​with the aforementioned middle module assembly. After the splicing is completed, the first drive assembly is continued to be started to apply a vertical downward clamping force to the upper module assembly, so that the vertical mold mechanism completes the clamping; when opening the mold, the first drive assembly is first started to release the clamping force on the upper module assembly in the vertical direction upward, and the first drive assembly is continued to be started The upper module assembly is separated from the middle module assembly, and then the third drive assembly is started to move the first drive assembly, thereby driving the upper module assembly to move away from the corresponding position above the middle module assembly to complete the mold opening action of the upper module assembly; then the second drive assembly is started to move the middle module assembly to complete the mold opening action of the middle module; when demolding, the ejection mechanism is started to eject the finished product to complete the demolding process. The vertical glue injection machine of the present application realizes the process of opening and closing molds and demolding without manual intervention, which greatly improves the efficiency and quality of the production of cable intermediate joints. The intermediate joint finished product produced by the vertical glue injection machine of the present invention has no parting line.

[0012] Furthermore, the lower module assembly is provided with a glue injection port which can be adapted to be connected with a nozzle of an external injection molding machine, and the glue injection port is communicated with the mold cavity to inject glue into the mold cavity.

[0013] Furthermore, an exhaust port connected to the mold cavity is provided at the top of the upper module assembly; during the glue injection process, the gas in the mold cavity can be discharged through the exhaust port, thereby making the glue injection process smoother.

[0014] Furthermore, the upper module assembly is provided with a glue discharge port communicated with the mold cavity, which can ensure that the product is fully injected with glue and discharge excess glue.

[0015] Furthermore, a heating unit is provided close to the vertical mold mechanism; the heating unit provides the temperature required for vulcanization for the rubber material in the mold cavity.

[0016] Furthermore, the vertical mold mechanism adopts metal materials with good thermal conductivity, such as stainless steel, which can effectively avoid the problem of uneven heating of the rubber material affecting the quality of the finished product.

[0017] Furthermore, the vertical mold mechanism is also provided with a circulating cooling water system; the circulating cooling water system cools and solidifies the vulcanized rubber material.

[0018] Furthermore, the mold cavity includes an upper mold cavity arranged in the upper module assembly, a middle mold cavity arranged in the middle module assembly, and a lower mold cavity arranged in the lower module assembly; the opening of the upper mold cavity faces downward, the middle mold cavity penetrates the middle module assembly in the vertical direction, and the opening of the lower mold cavity faces upward; the bottom end of the core rod is fixed on the lower module assembly so that the bottom of the core rod can be coaxially arranged with the lower mold cavity; the top end of the core rod can be inserted into the upper module assembly so that the top of the core rod can be coaxially arranged with the upper mold cavity; the core rod is coaxially passed through the middle mold cavity; the upper mold cavity and the lower mold cavity are both provided with notches matching the semi-conductive stress cone, which are used to assemble the semi-conductive stress cone of the middle joint of the product.

[0019] Furthermore, the upper module assembly is composed of a first upper module, a second upper module, and a third upper module which are detachably connected from top to bottom, and sealing rings are provided between the first upper module, the second upper module, and the third upper module; the lower module assembly is composed of a first lower module, a second lower module, and a third lower module which are detachably connected from top to bottom, and sealing rings are provided between the first lower module, the second lower module, and the third lower module; this detachable design makes it easy for the operator or the automatic mold cleaning device to clean the mold to remove impurities such as residual plastic and flash; the setting of the sealing ring can effectively prevent the rubber from overflowing, thereby avoiding quality defects in the finished product.

[0020] Furthermore, the bottom surface of the upper module assembly, the bottom surface and top surface of the middle module assembly, and the top surface of the lower module assembly are all provided with positioning units, wherein the positioning unit on the bottom surface of the upper module assembly matches the positioning unit on the top surface of the middle module assembly, and the positioning unit on the bottom surface of the middle module assembly matches the positioning unit on the top surface of the lower module assembly.

[0021] Furthermore, the ejection mechanism includes an ejector pin groove provided on the lower module assembly and located at the bottom of the mold cavity and connected to the mold cavity, an ejector pin cooperating therewith is provided in the ejector pin groove, a fourth drive assembly provided on the outer frame, and an air inlet provided on the lower module assembly and connected to the ejector pin groove; the air inlet is connected to an external high-pressure air gun; the ejector pin is transmission-connected to the fourth drive assembly, and the fourth drive assembly drives the ejector pin to be pulled out of the ejector pin groove so that the end face of the ejector pin away from the fourth drive assembly coincides with the plane of the inner wall of the ejector pin groove.

[0022] By adopting the above technical solution, the present invention has the following beneficial effects:

[0023] (1) When the vertical injection molding machine of the present invention is closed, the second drive assembly is first started to move the middle module assembly to splice the middle module assembly with the lower module assembly, and then the third drive assembly is started to slide the first drive assembly to the corresponding position above the aforementioned middle module assembly, and then the first drive assembly is started to move the upper module assembly to splice the upper module assembly with the aforementioned middle module assembly. After the splicing is completed, the first drive assembly is continued to be started to apply a vertical downward clamping force to the upper module assembly, so that the vertical mold mechanism completes the clamping; when opening the mold, the first drive assembly is first started to release the clamping force on the upper module assembly in the vertical direction upward, and the first drive assembly is continued to be started The assembly separates the upper module assembly from the middle module assembly, then starts the third drive assembly to move the first drive assembly, thereby driving the upper module assembly to move away from the corresponding position above the middle module assembly, completing the mold opening action of the upper module assembly; then starts the second drive assembly to move the middle module assembly, completing the mold opening action of the middle module; when demolding, starts the ejection mechanism to eject the finished product, completing the demolding process. The vertical glue injection machine of the present application realizes the process of opening and closing molds and demolding without manual intervention, greatly improving the efficiency and quality of the production of cable intermediate joints. The intermediate joint finished product produced by the vertical glue injection machine of the present invention has no parting line.

[0024] (2) The lower module assembly of the present invention is provided with a glue injection port that can be matched and connected with the nozzle of an external injection molding machine. The glue injection port is connected to the mold cavity to inject glue into the mold cavity, thereby facilitating the glue injection operation.

[0025] (3) The top of the upper module assembly of the present invention is provided with an exhaust port connected to the mold cavity; during the injection process, the gas in the mold cavity can be discharged through the exhaust port, thereby making the injection process smoother.

[0026] (4) The upper module assembly of the present invention is provided with a glue discharge port connected to the mold cavity, which can ensure that the product is fully injected with glue and discharge excess glue.

[0027] (5) The present invention provides a heating unit close to the vertical mold mechanism, and the heating unit provides the rubber material in the mold cavity with the temperature required for vulcanization.

[0028] (6) The vertical mold mechanism of the present invention is also provided with a circulating cooling water system, which cools and solidifies the vulcanized rubber material.

[0029] (7) The upper mold cavity and the lower mold cavity of the present invention are both provided with notches matching the semi-conductive stress cone, which are used to assemble the semi-conductive stress cone of the intermediate joint of the product.

[0030] (8) The upper module assembly of the present invention is composed of a first upper module, a second upper module, and a third upper module which are detachably connected from top to bottom, and a sealing ring is provided between the first upper module, the second upper module, and the third upper module; the lower module assembly is composed of a first lower module, a second lower module, and a third lower module which are detachably connected from top to bottom, and a sealing ring is provided between the first lower module, the second lower module, and the third lower module; this detachable design makes it easy for the operator or the automatic mold cleaning device to clean the mold to remove impurities such as residual plastic and flash; the provision of the sealing ring can effectively prevent the rubber from overflowing, thereby avoiding quality defects in the finished product.

[0031] (9) The bottom surface of the upper module assembly, the bottom surface and top surface of the middle module assembly, and the top surface of the lower module assembly of the present invention are all provided with positioning units, and these positioning units match each other, which can ensure that the upper module assembly, the middle module assembly and the lower module assembly are accurately aligned when the mold is closed, thereby preventing quality defects in the finished cable caused by misalignment of the module assemblies.

[0032] (10) The ejection mechanism of the present invention includes an ejector groove arranged on the lower module assembly and located at the bottom of the mold cavity and connected to the mold cavity, an ejector matching with the ejector groove is arranged in the ejector groove, a fourth drive assembly is arranged on the outer frame, and an air inlet is arranged on the lower module assembly and connected to the ejector groove; during the demolding process, the fourth drive assembly drives the ejector to extend outward from the ejector groove, so that the plane of the end of the ejector away from the fourth drive assembly is flush with the plane of the inner wall of the ejector groove, thereby freeing up space in the ejector groove; then, a high-pressure air gun is used to inject high-pressure gas into the ejector groove through the air inlet, and the high-pressure gas acts on the bottom of the product in the mold cavity to eject it upward to achieve demolding. This method avoids the problem of product damage and reduced production efficiency that may be caused by manual demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein

[0034] Figure 1 It is a front view of the vertical glue injection machine of the present invention before mold closing;

[0035] Figure 2 It is a front view of the vertical glue injection machine of the present invention in the mold closing state;

[0036] Figure 3 It is a side view of the vertical glue injection machine of the present invention in the mold closing state;

[0037] Figure 4 It is a side view of the upper module assembly of the vertical glue injection machine of the present invention in the first step of mold opening state;

[0038] Figure 5 It is a side view of the upper module assembly of the vertical glue injection machine of the present invention in the second step mold opening state;

[0039] Figure 6 It is a side view of the vertical glue injection machine of the present invention in the mold opening state;

[0040] Figure 7 It is a schematic structural diagram of the finished intermediate joint of the present invention.

[0041] The numbers in the accompanying drawings are: outer frame 1, upper module assembly 5-1, first upper module 5-1-A, second upper module 5-1-B, third upper module 5-1-C; middle module assembly 5-2; lower module assembly 5-3, first lower module 5-3-E, second lower module 5-3-F, third lower module 5-3-G; core rod 5-4, first drive assembly 3, heating unit 4, glue injection port 6, glue discharge port 7, ejector pin 2, semi-conductive stress cone ①, semi-conductive high-voltage shielding tube ③, semi-conductive outer shielding tube ②, filling rubber ④. DETAILED DESCRIPTION

[0042] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In the description of the embodiments of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The present invention is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the scope of protection of the present invention.

[0048] (Example)

[0049] See also Figure 1 , a vertical glue injection machine, comprising an outer frame 1, a driving mechanism, a vertical mold mechanism, and an ejection mechanism; the driving mechanism comprises a first driving assembly 3, a second driving assembly, and a third driving assembly; the vertical mold mechanism comprises an upper module assembly 5-1, a middle module assembly 5-2, a lower module assembly 5-3, and a core rod 5-4, the upper module assembly 5-1, the middle module assembly 5-2, and the lower module assembly 5-3 are sequentially spliced ​​to form at least one mold cavity in the vertical mold mechanism, and a core rod 5-4 is coaxially arranged in each mold cavity; the third driving assembly is transmission-connected with the first driving assembly 3, and the third driving assembly drives the first driving assembly 3 to slide on the top of the outer frame; the first driving assembly 3 is slidably arranged at the top of the outer frame, the first driving assembly 3 is transmission-connected with the upper module assembly 5-1, and the first driving assembly 3 drives the upper module assembly 5-1 to move; the second driving assembly is arranged on the outer frame, the second driving assembly is transmission-connected with the middle module assembly 5-2, and the second driving assembly drives the middle module assembly 5-2 to move; the ejection mechanism for demoulding is arranged at the bottom of the mold cavity.

[0050] The lower module component 5 - 3 is provided with a glue injection port 6 which can be matched and connected with the nozzle of an external injection molding machine, and the glue injection port is communicated with the mold cavity.

[0051] The top of the upper module assembly 5 - 1 is provided with an exhaust port connected to the mold cavity. During the glue injection process, the gas in the mold cavity is discharged through the exhaust port to ensure complete glue injection.

[0052] The upper module assembly 5 - 1 is provided with a glue discharge port 7 which is connected to the mold cavity. When the glue is completely filled, the excess glue is discharged from the glue discharge port.

[0053] A heating unit 4 is provided close to the vertical mold mechanism. Preferably, the heating unit 4 comprises a heating plate, wherein the vertical mold mechanism is made of a metal material with good thermal conductivity to ensure that each rubber material is heated evenly and vulcanized completely.

[0054] The vertical mold mechanism is also provided with a circulating cooling water system; the circulating cooling water system includes a water inlet, a cooling water flow channel and a water outlet, the water inlet, the cooling water flow channel and the water outlet are interconnected, the water inlet is arranged below the vertical mold mechanism, the cooling water flow channel is arranged in the vertical mold mechanism and is not connected to the mold cavity, the water outlet is arranged above the vertical mold mechanism, the cooling water enters from the water inlet and flows through the cooling water flow channel, and flows out from the water outlet to cool the rubber in the vertical mold mechanism.

[0055] The mold cavity includes an upper mold cavity arranged in the upper module component 5-1, a middle mold cavity arranged in the middle module component 5-2, and a lower mold cavity arranged in the lower module component 5-3; the opening of the upper mold cavity faces downward, the middle mold cavity passes through the middle module component 5-2 in the vertical direction, and the opening of the lower mold cavity faces upward; the bottom end of the core rod is fixed on the lower module component 5-3 so that the bottom of the core rod 5-4 can be coaxially arranged with the lower mold cavity; the top end of the core rod can be inserted into the upper module component 5-1 so that the top of the core rod 5-4 can be coaxially arranged with the upper mold cavity; the core rod is coaxially penetrated in the middle mold cavity; the upper mold cavity and the lower mold cavity are both provided with notches matching the semi-conductive stress cone ①.

[0056] The upper module assembly 5-1 is composed of a first upper module 5-1-A, a second upper module 5-1-B, and a third upper module 5-1-C which are detachably connected from top to bottom, and sealing rings are provided between the first upper module 5-1-A, the second upper module 5-1-B, and the third upper module 5-1-C; the lower module assembly 5-3 is composed of a first lower module 5-3-E, a second lower module 5-3-F, and a third lower module 5-3-G which are detachably connected from top to bottom, and sealing rings are provided between the first lower module 5-3-E, the second lower module 5-3-F, and the third lower module 5-3-G.

[0057] The bottom surface of the upper module component 5-1, the bottom surface and top surface of the middle module component 5-2, and the top surface of the lower module component 5-3 are all provided with positioning units, wherein the positioning unit on the bottom surface of the upper module component 5-1 matches the positioning unit on the top surface of the middle module component 5-2, and the positioning unit on the bottom surface of the middle module component 5-2 matches the positioning unit on the top surface of the lower module component 5-3; preferably, the positioning unit includes a positioning pin and a positioning hole.

[0058] The ejection mechanism includes an ejector groove provided on the lower module component 5-3 and located at the bottom of the mold cavity and connected to the mold cavity, an ejector 2 matched therewith is provided in the ejector groove, a fourth drive component provided on the outer frame, and an air inlet provided on the lower module component 5-3 and connected to the ejector groove; the air inlet is connected to an external high-pressure air gun; the ejector 2 is transmission-connected to the fourth drive component, and the fourth drive component drives the ejector 2 to be pulled out from the ejector groove, so that the end face of the ejector 2 away from the fourth drive component coincides with the plane of the inner wall of the ejector groove; during the demolding process, the fourth drive component drives the ejector to extend outward from the ejector groove, so that the plane of the end of the ejector away from the fourth drive component is flush with the plane of the inner wall of the ejector groove, thereby freeing up the space in the ejector groove; subsequently, high-pressure gas is injected into the ejector groove through the air inlet using a high-pressure air gun, and the high-pressure gas acts on the bottom of the product in the mold cavity to eject it upward to achieve demolding.

[0059] For ease of understanding, the manufacturing process of the intermediate joint produced by the vertical glue injection machine of the present invention is as follows, wherein the structure of the intermediate joint is as follows Figure 7 As shown, it includes: a semi-conductive stress cone ①, a semi-conductive high-voltage shielding tube ③, a semi-conductive outer shielding tube ②, and a filling rubber compound ④, wherein the semi-conductive outer shielding tube ② is coaxially arranged outside the semi-conductive high-voltage shielding tube ③, the semi-conductive stress cone ① is arranged at two ends in the middle close to one side of the semi-conductive high-voltage shielding tube ③, and the filling rubber compound ④ is filled between the semi-conductive outer shielding tube ②, the semi-conductive stress cone ①, and the semi-conductive high-voltage shielding tube ③.

[0060] Semi-finished product assembly stage:

[0061] Four semi-conductive stress cones ① are respectively embedded in the upper mold cavity and the lower mold cavity in pairs, the semi-conductive high-voltage shielding tube ③ is tightly sleeved on the outer peripheral surface of the middle part of the core rod 5-4, and the semi-conductive outer shielding tube ② is tightly set on the inner wall of the second mold cavity.

[0062] Mould closing stage:

[0063] See also Figures 2-3, first start the second drive assembly to move the middle module assembly, and position and splice the middle module assembly and the lower module assembly through the positioning unit, then start the third drive assembly to make the first drive assembly slide to the corresponding position above the aforementioned middle module assembly, and then start the first drive assembly to move the upper module assembly, and position and splice the upper module assembly and the aforementioned middle module assembly through the positioning unit. At this time, the upper module assembly 5-1, the middle module assembly 5-2, and the lower module assembly 5-3 form at least one mold cavity in the vertical mold mechanism. After splicing is completed, continue to start the first drive assembly to apply a vertical downward clamping force to the upper module assembly, so that the vertical mold mechanism completes the clamping, so as to ensure that the vertical mold mechanism can be tightly closed and withstand the injection pressure of the molten plastic during the injection molding process, and prevent overflow or deformation at the parting surface of the vertical mold mechanism.

[0064] Glue injection, vulcanization and cooling and curing stage:

[0065] Start the external injection molding machine, and quickly fill the rubber into the mold cavity from the injection port through the nozzle of the external injection molding machine with a certain pressure. After filling, the excess rubber overflows from the discharge port. After maintaining the pressure for a period of time, continue to fill in the rubber for additional compaction to compensate for the volume reduction that may be caused by cooling shrinkage, ensure that the internal structure of the middle joint of the finished product is dense, and reduce defects such as bubbles and shrinkage marks. Then start the heating plate to heat up to the vulcanization temperature to vulcanize the rubber. After vulcanization, start the circulating cooling water system and pass cooling water for cooling and solidification molding.

[0066] Mold opening and demoulding stage:

[0067] See also Figures 4 to 6 , first start the first drive assembly to release the clamping force on the upper module assembly in the vertical direction, continue to start the first drive assembly to separate the upper module assembly from the middle module assembly, then start the third drive assembly to move the first drive assembly, and then drive the upper module assembly to move away from the corresponding position above the middle module assembly to complete the mold opening action of the upper module assembly; then start the second drive assembly to move the middle module assembly to complete the mold opening action of the middle module. The mold opening process should be smooth and at a moderate speed to avoid impact damage to the mold or the middle joint of the finished product; start the fourth drive assembly, and the fourth drive assembly drives the ejector pin to extend outward from the ejector pin groove, so that the plane of the end of the ejector pin away from the fourth drive assembly is flush with the plane of the inner wall of the ejector pin groove, thereby freeing up the space of the ejector pin groove; then, use a high-pressure air gun to inject high-pressure gas into the ejector pin groove through the air inlet, and the high-pressure gas acts on the bottom of the product in the mold cavity to eject it upward to achieve demolding; the demolding structure ensures that the demolding force is moderate, and the middle joint of the finished product can be smoothly peeled off the mold without causing deformation or damage to the middle joint of the finished product.

[0068] Finished product intermediate joint removal and cleaning stage:

[0069] A manual or automated robot is used to remove the middle joint of the finished product after demoulding and place it in a designated location for subsequent processing or testing; at the same time, the operator or the automatic mold cleaning device will perform necessary cleaning on the vertical mold mechanism to remove residual plastic, flash, etc., to prepare for the next round of injection molding cycle. At this point, the injection molding machine has completed a complete mold opening and closing cycle.

[0070] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical glue injection machine, It is characterized in that The invention comprises an outer frame (1), a driving mechanism, a vertical mold mechanism, and an ejection mechanism; the driving mechanism comprises a first driving assembly (3), a second driving assembly, and a third driving assembly; the vertical mold mechanism comprises an upper module assembly (5-1), a middle module assembly (5-2), a lower module assembly (5-3), and a core rod (5-4); the upper module assembly (5-1), the middle module assembly (5-2), and the lower module assembly (5-3) are sequentially spliced ​​to form at least one mold cavity in the vertical mold mechanism, and a core rod (5-4) is coaxially arranged in each mold cavity; the third driving assembly The component is transmission-connected with the first drive component (3), and the third drive component drives the first drive component (3) to slide on the top of the outer frame; the first drive component (3) is slidably arranged on the top of the outer frame, the first drive component (3) is transmission-connected with the upper module component (5-1), and the first drive component (3) drives the upper module component (5-1) to move; the second drive component is arranged on the outer frame, the second drive component is transmission-connected with the middle module component (5-2), and the second drive component drives the middle module component (5-2) to move; the ejection mechanism for demoulding is arranged at the bottom of the mold cavity.

2. The vertical glue injection machine according to claim 1, It is characterized in that The lower module component (5-3) is provided with a glue injection port (6) which can be matched and connected with the nozzle of an external injection molding machine, and the glue injection port is communicated with the mold cavity.

3. The vertical glue injection machine according to claim 1, It is characterized in that The top of the upper module component (5-1) is provided with an exhaust port which is in communication with the mold cavity.

4. The vertical glue injection machine according to claim 1, It is characterized in that The upper module assembly (5-1) is provided with a glue discharge port (7) which is in communication with the mold cavity.

5. The vertical glue injection machine according to claim 1, It is characterized in that A heating unit (4) is provided close to the vertical mold mechanism.

6. The vertical glue injection machine according to claim 1, It is characterized in that The vertical mold mechanism is also provided with a circulating cooling water system.

7. The vertical glue injection machine according to claim 1, It is characterized in that The mold cavity comprises an upper mold cavity arranged in an upper mold component (5-1), a middle mold cavity arranged in a middle mold component (5-2), and a lower mold cavity arranged in a lower mold component (5-3); the upper mold cavity opens downward, the middle mold cavity vertically penetrates the middle mold component (5-2), and the lower mold cavity opens upward; the bottom end of the core rod is fixed on the lower mold component (5-3) so that the bottom of the core rod (5-4) can be coaxially arranged with the lower mold cavity; the top end of the core rod can be inserted into the upper mold component (5-1) so that the top of the core rod (5-4) can be coaxially arranged with the upper mold cavity; the core rod is coaxially penetrated in the middle mold cavity; the upper mold cavity and the lower mold cavity are both provided with notches matching the semi-conductive stress cone ①.

8. The vertical glue injection machine according to claim 1, It is characterized in that The upper module assembly (5-1) is composed of a first upper module (5-1-A), a second upper module (5-1-B), and a third upper module (5-1-C) which are detachably connected from top to bottom, and sealing rings are provided between the first upper module (5-1-A), the second upper module (5-1-B), and the third upper module (5-1-C); the lower module assembly (5-3) is composed of a first lower module (5-3-E), a second lower module (5-3-F), and a third lower module (5-3-G) which are detachably connected from top to bottom, and sealing rings are provided between the first lower module (5-3-E), the second lower module (5-3-F), and the third lower module (5-3-G).

9. The vertical glue injection machine according to claim 1, It is characterized in that The bottom surface of the upper module assembly (5-1), the bottom surface and top surface of the middle module assembly (5-2), and the top surface of the lower module assembly (5-3) are all provided with positioning units, wherein the positioning unit on the bottom surface of the upper module assembly (5-1) matches the positioning unit on the top surface of the middle module assembly (5-2), and the positioning unit on the bottom surface of the middle module assembly (5-2) matches the positioning unit on the top surface of the lower module assembly (5-3).

10. The vertical glue injection machine according to claim 1, It is characterized in that The ejection mechanism comprises an ejector pin groove arranged on the lower module component (5-3) and located at the bottom of the mold cavity and connected to the mold cavity, an ejector pin (2) matched with the ejector pin groove is arranged in the ejector pin groove, a fourth drive component arranged on the outer frame, and an air inlet arranged on the lower module component (5-3) and connected to the ejector pin groove; the air inlet is connected to an external high-pressure air gun; the ejector pin (2) is transmission-connected to the fourth drive component, and the fourth drive component drives the ejector pin (2) to be pulled out of the ejector pin groove, so that the end face of the ejector pin (2) away from the fourth drive component coincides with the plane of the inner wall of the ejector pin groove.

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