Continuous injection mold of injection molding equipment and injection molding equipment

Abstract

The present application discloses a continuous injection mold of an injection molding device and the injection molding device. The continuous injection mold includes: an upper mold assembly and a lower mold assembly. The upper mold assembly is provided with an injection molding tube, the upper mold assembly defines an upper cavity, and the lower mold assembly includes a base and a rotating disk; the rotating disk is provided with a plurality of injection molding protrusions, and the inner wall of the upper cavity is provided with a plurality of injection molding depressions. An injection molding gap is formed between the injection molding depressions and the injection molding protrusions, and the injection molding gap is connected to the discharge end of the injection molding tube; a driving mechanism, and the driving mechanism is used to drive the rotating disk to rotate around the central axis of the rotating disk. When a section of plastic product is formed by injection molding in the injection molding gap, the driving mechanism drives the rotating disk to rotate, so that the plastic product formed in the injection molding gap is moved out of the continuous injection mold, and the tail end of the plastic product is retained in the injection molding gap. When the plastic product is formed by injection molding again in the injection molding gap, the two sections of plastic products can be connected together, so that the continuous injection mold can continuously process strip-shaped plastic products.

Description

Technical Field

[0001] The invention relates to the field of injection molding, in particular to a continuous injection mold of an injection molding device and the injection molding device having the continuous injection mold. Background Art

[0002] In the process of injection molding strip-shaped plastic products (such as dust-free drag chains and other products), the material needs to be melted and injected into the injection mold. The material is shaped and cooled in the injection mold to obtain a plastic product.

[0003] In the related art, when the length of a strip plastic product is too long, making it difficult for the strip plastic product to be processed and molded in one time by an injection mold, the strip plastic product can be processed by multiple molding. After the injection mold injects a section of plastic product, the staff takes out the product and replaces it, so that the tail end of the plastic product remains in the mold, so that when the injection mold injects the next section of plastic product, the previous section of plastic product can be connected to the next section of plastic product. In other schemes, the plastic product can be divided into multiple sections for injection molding. After the multiple sections of products are injected separately, the staff can use ultrasonic welding to connect the multiple sections of plastic products together in sequence. This causes the production of strip plastic products to occupy too much human resources, resulting in too low production efficiency of strip plastic products, thereby increasing the production cost of strip plastic products. Summary of the invention

[0004] In order to reduce the labor cost required for processing strip-shaped plastic products, improve the production efficiency of strip-shaped plastic products, and reduce the production cost of strip-shaped plastic products, the present application provides a continuous injection mold of an injection molding device.

[0005] The present application further proposes an injection molding device.

[0006] The continuous injection mold of the injection molding equipment provided in this application adopts the following technical solution:

[0007] A continuous injection mold of an injection molding device, comprising: an upper mold assembly and a lower mold assembly, wherein the upper mold assembly is arranged opposite to the lower mold assembly, the lower mold assembly forms a discharge port, the upper mold assembly is suitable for moving close to or away from the lower mold assembly, an injection tube is arranged in the upper mold assembly, the upper mold assembly defines an upper cavity, the lower mold assembly comprises a base and a rotating disk, the rotating disk is rotatably connected to the base, and the rotating disk is inserted into the upper cavity; the rotating disk is provided with a plurality of injection protrusions, the plurality of injection protrusions protrude from the surface of the rotating disk and are arranged in sequence along the circumferential direction of the rotating disk, and the inner wall of the upper cavity A plurality of injection molding recesses are provided, and the plurality of injection molding recesses correspond to the plurality of injection molding protrusions one by one and are relatively arranged, an injection molding gap is formed between the injection molding recesses and the injection molding protrusions, the injection molding gap is connected with the discharge end of the injection molding tube, and the discharge port is connected with the upper mold cavity; a driving mechanism, the driving mechanism is connected to the rotating disk in a transmission manner, and the driving mechanism is used to continuously drive the rotating disk to rotate around the central axis of the rotating disk by a first preset angle, wherein an angle formed by a line connecting two injection molding recesses located at the ends of the plurality of injection molding recesses and the central axis of the rotating disk is a second preset angle, and the first preset angle is smaller than the second preset angle.

[0008] By adopting the above technical scheme, during the process of injection molding a strip-shaped plastic product by the injection molding equipment, after a section of plastic product is formed in the injection molding gap, the driving mechanism drives the rotating disk to rotate, so that the formed plastic product in the injection molding gap is moved out of the continuous injection mold, and the tail end of the plastic product is retained in the injection molding gap. When the plastic product is injected again in the injection molding gap, the two sections of plastic products can be connected together, so that the continuous injection mold can continuously process the strip-shaped plastic product. Compared with the prior art, the labor cost required for processing the strip-shaped plastic product can be reduced, the production efficiency of the strip-shaped plastic product can be improved, and thus the production cost of the strip-shaped plastic product can be reduced.

[0009] Preferably, the upper mold assembly includes an upper mold and a mounting seat, the upper mold is fixed to the mounting seat, the upper mold and the mounting seat jointly define the upper cavity, the injection molding tube includes an injection molding main pipe, the injection molding main pipe is passed through the upper mold and is connected to the upper cavity, and the end surface of the upper mold opposite to the rotating disk is provided with at least one of the injection molding recesses.

[0010] By adopting the above technical solution, when the injection molding equipment injects the material into the upper mold cavity through the injection molding main pipe, and the injection molding protrusion and the injection molding depression of the rotating disk cooperate to form an injection molding gap, so that the material can be cooled and shaped to form a strip-shaped plastic product.

[0011] Preferably, the upper mold assembly also includes at least one sub-mold, and along the circumferential direction of the rotating disk, the outer wall of the upper mold is spaced apart from the inner wall of the mounting seat to form a mounting gap, and the sub-mold is suitable for extending into or moving out of the mounting gap along the radial direction of the rotating disk, and the injection molding tube is also provided with an injection molding branch pipe, and the injection molding main pipe is connected with the injection molding branch pipe, and the injection molding branch pipe passes through the upper mold and penetrates into the sub-mold, and the injection molding branch pipe is connected with the upper cavity, and the end face of the sub-mold opposite to the rotating disk is provided with at least one injection molding depression.

[0012] By adopting the above technical scheme, when the injection molding equipment injects a strip-shaped plastic product, the sub-mold extends into the installation gap along the radial direction of the rotating disk, and the injection gap is formed by the cooperation of the sub-mold, the upper mold and the rotating disk. Specifically, the end face of the sub-mold opposite to the rotating disk is provided with an injection molding recess, and the injection molding recess of the sub-mold and the injection molding recess of the upper mold cooperate with the injection molding protrusion of the rotating disk to form an injection molding gap, and the injection molding equipment injects the material into the injection molding gap through the injection molding main pipe and the injection molding branch pipe.

[0013] Preferably, the mounting seat is also provided with a positioning structure for positioning the sub-mold.

[0014] By adopting the above technical solution, by setting a positioning structure on the mounting seat, when the injection molding device drives the sub-mold to approach the rotating disk along the radial direction of the rotating disk, the positioning structure limits the spacing distance between the sub-mold and the rotating disk, so that the size of the injection molding gap formed between the sub-mold and the rotating disk meets the preset gap requirement, thereby making the consistency of each section of the strip-shaped plastic product formed by continuous injection molding better, and when the injection molding device drives the sub-mold away from the rotating disk along the radial direction of the rotating disk, the positioning structure tries to prevent the injection molding device from driving the sub-mold out of the mounting gap. By setting a positioning structure on the mounting seat, it is helpful to accurately adjust the relative position between the sub-mold and the mounting seat, and it can be prevented as much as possible from having a step structure between the sub-mold and the upper mold, and it can reduce the structural defects between the strip-shaped plastic products formed by injection molding between the sub-mold and the upper mold.

[0015] Preferably, the first preset angle is α, the second preset angle is β, and α and β satisfy the relationship: 360° / α=A, where A is an integer; 15°≤β≤72°.

[0016] By adopting the above technical solution, after the injection molding equipment completes one injection molding of the continuous injection mold, the injection molding equipment drives the upper mold assembly away from the rotating disk along the height direction of the continuous injection mold, and the driving mechanism drives the rotating disk to rotate a first preset angle. Further, after the driving mechanism drives the rotating disk to rotate the first preset angle, the injection molding equipment drives the upper mold assembly to approach the rotating disk along the height direction of the continuous injection mold, so that the injection molding equipment can complete the next injection molding of the continuous injection mold. The angle range of the first preset angle at least partially overlaps with the angle range of the second preset angle, and by making the first preset angle divisible by 360°, the rotating disk completes a working cycle after continuous rotation for multiple times.

[0017] Preferably, the lower mold assembly is provided with a plurality of the rotating disks, which are coaxial and spaced apart in sequence, and the upper mold assembly defines a plurality of the upper cavities, which correspond one to one to the plurality of the rotating disks.

[0018] By adopting the above technical solution, when producing strip-shaped plastic products, the driving mechanism can simultaneously drive multiple rotating disks to rotate around the central axis of the rotating disks. By arranging multiple rotating disks in the lower mold assembly and arranging multiple upper cavities corresponding to the rotating disks in the upper cavity, the injection molding equipment can simultaneously produce multiple strip-shaped injection molded products through a continuous injection mold, thereby further improving the production efficiency of strip-shaped plastic products.

[0019] Preferably, the lower mold assembly is also provided with a rotating shaft, which is coaxial with and fixedly connected to the multiple rotating disks, and the driving mechanism is connected to the rotating shaft in transmission, and the driving mechanism is suitable for driving the rotating shaft to drive the multiple rotating disks to rotate around the central axis of the rotating disk; the driving mechanism includes a driving motor and a transmission gear set, and the transmission gear set includes a plurality of transmission gears meshing in sequence, the driving motor is fixedly connected to a transmission gear located at the head of a plurality of transmission gears connected in sequence, and the rotating shaft is fixedly connected to a transmission gear located at the tail of a plurality of transmission gears connected in sequence, and the driving motor is suitable for driving the rotating shaft to rotate through the transmission gear set.

[0020] By adopting the above technical solution, the power generated by the driving motor can smoothly drive the rotating shaft to rotate after the transmission gear set reduces speed and increases torque. Of course, the transmission ratio between multiple transmission gears can also be adjusted according to actual production needs, so that the torque output by the driving motor through the transmission gear set matches the number of rotating disks in the continuous injection mold.

[0021] Preferably, the lower mold assembly also includes: a heat exchange assembly, the heat exchange assembly includes a connecting piece, a liquid inlet pipe, a liquid outlet pipe and a heat exchange tube, the rotating shaft can be rotatably inserted into the connecting piece, the connecting piece has a liquid inlet and a liquid outlet, the liquid inlet pipe and the liquid outlet pipe are both passed through the rotating shaft, one end of the liquid inlet pipe is connected to the liquid inlet, the other end of the liquid inlet pipe is connected to one end of the heat exchange tube, one end of the liquid outlet pipe is connected to the liquid outlet, the other end of the liquid outlet pipe is connected to the other end of the heat exchange tube, the heat exchange tube is arranged in the rotating disk to form a heat exchange part, and the heat exchange medium is suitable for flowing from the liquid inlet toward the liquid outlet.

[0022] By adopting the above technical solution, by arranging a heat exchange component in the continuous injection mold, after the injection molding equipment injects the material into the injection gap, the heat exchange medium exchanges heat with the material in the heat exchange tube in the rotating disk, so as to accelerate the cooling and molding of the material, and by arranging both the liquid inlet pipe and the liquid outlet pipe in the rotating shaft, the liquid inlet pipe and the liquid outlet pipe can make full use of the space in the rotating shaft, thereby making the structure of the continuous injection mold more compact.

[0023] Preferably, a separation mechanism is further provided at the discharge port, and the separation mechanism is used to separate the strip-shaped injection-molded product formed in the injection gap from the rotating disk.

[0024] By adopting the above technical solution, after the injection molding equipment starts injection molding, the driving mechanism drives the strip-shaped injection molded product to stop contact with the separation mechanism through the rotating disk, and one end of the strip-shaped injection molded product is acted upon by the tangential force of the separation mechanism so that the strip-shaped injection molded product is separated from the rotating disk, and the strip-shaped injection molded product is guided by the separation mechanism so that the strip-shaped injection molded product can be transported toward the discharge port.

[0025] In summary, the present application provides an injection molding device adopting the following technical solution:

[0026] An injection molding device comprises: an equipment body, the equipment body is provided with an injection molding mechanism and a clamping mechanism; a continuous injection mold, the continuous injection mold is a continuous injection mold of the above-mentioned injection molding device, the injection molding mechanism is connected to the injection molding tube of the continuous injection mold, and the clamping mechanism is used to drive the upper mold county component and the lower mold county component of the continuous injection mold to move in opposite or reverse directions.

[0027] By adopting the above technical solution, the injection molding mechanism is used to inject materials into the injection molding main pipe and the injection molding branch pipe so that the materials can be injected into the injection gap of the continuous injection mold. Before the injection molding mechanism injects materials into the continuous injection mold, the clamping mechanism drives the upper mold assembly of the continuous injection mold to move relative to the lower mold assembly along the height direction of the continuous injection mold, so that an injection gap is formed between the injection molding protrusion of the rotating disk and the injection molding depression of the upper mold assembly. In the process of injection molding strip plastic products by the injection molding equipment, the strip injection molding products are produced by utilizing the driving mechanism, the upper mold assembly and the lower mold assembly of the continuous injection mold, and the produced strip plastic products are connected. Compared with the prior art, the labor cost required for processing the strip plastic products can be reduced, and the production and processing time of the strip plastic products can be reduced, thereby reducing the production cost of the strip plastic products.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. In the process of injection molding a strip-shaped plastic product by the injection molding equipment, after a section of plastic product is formed in the injection molding gap, the driving mechanism drives the rotating disk to rotate, so that the formed plastic product in the injection molding gap is moved out of the continuous injection mold, and the tail end of the plastic product is retained in the injection molding gap. When the plastic product is formed again in the injection molding gap, the two sections of plastic products can be connected together, so that the continuous injection mold can continuously process the strip-shaped plastic product. Compared with the prior art, the labor cost required for processing the strip-shaped plastic product can be reduced, the production efficiency of the strip-shaped plastic product can be improved, and thus the production cost of the strip-shaped plastic product can be reduced;

[0030] 2. When the injection molding equipment is injecting a strip-shaped plastic product, the sub-mold extends into the installation gap along the radial direction of the rotating disk, and the injection gap is formed by the cooperation of the sub-mold, the upper mold and the rotating disk. Specifically, the end surface of the sub-mold opposite to the rotating disk is provided with an injection depression, and the injection depression of the sub-mold and the injection depression of the upper mold cooperate with the injection protrusion of the rotating disk to form an injection gap, and the injection molding equipment injects the material into the injection gap through the injection main pipe and the injection branch pipe;

[0031] 3. By arranging a heat exchange component in the continuous injection mold, after the injection molding equipment injects the material into the injection gap, the heat exchange medium exchanges heat with the material in the heat exchange tube in the rotating disk to accelerate the cooling and molding of the material, and by arranging both the liquid inlet pipe and the liquid outlet pipe in the rotating shaft, the liquid inlet pipe and the liquid outlet pipe can make full use of the space in the rotating shaft, thereby making the structure of the continuous injection mold more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of a continuous injection mold according to an embodiment of the present application;

[0033] Figure 2 is a schematic diagram of a continuous injection mold according to an embodiment of the present application from another angle;

[0034] Figure 3 is a cross-sectional view of a continuous injection mold according to an embodiment of the present application;

[0035] Figure 4 is a schematic diagram of a partial structure of a continuous injection mold according to an embodiment of the present application;

[0036] Figure 5 is a cross-sectional view from another angle of the continuous injection mold according to an embodiment of the present application;

[0037] Figure 6 yes Figure 5 The enlarged schematic diagram of point A in the middle;

[0038] Figure 7 It is a cross-sectional view of a partial structure of a continuous injection mold according to an embodiment of the present application.

[0039] Description of reference numerals:

[0040] 1000, continuous injection mold; 100, upper mold assembly; 101, injection tube; 102, upper cavity; 10, injection depression; 106, injection gap; 103, upper mold; 104, mounting seat; 11, injection main tube; 12, injection branch tube; 105, sub-mold;

[0041] 200, lower mold assembly; 201, discharge port; 202, rotating disk; 203, base; 20, injection molding protrusion; 204, rotating shaft; 205, positioning structure; 21, storage part; 22, elastic part; 23, top bead;

[0042] 300, driving mechanism; 301, driving motor; 302, transmission gear set; 30, transmission gear;

[0043] 400, heat exchange assembly; 401, connector; 402, liquid inlet pipe; 403, liquid outlet pipe; 404, liquid inlet branch pipe; 405, liquid outlet branch pipe; 40, liquid inlet; 41, liquid outlet; 406, heat exchange pipe; 407, first flow slot; 408, second flow slot;

[0044] 500. Separation mechanism. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-Figure 7 This application is described in further detail.

[0046] The embodiment of the present application discloses a continuous injection mold 1000 of an injection molding device. The continuous injection mold 1000 can continuously inject to form multiple sections of strip-shaped plastic products, and the continuous injection mold 1000 can connect the multiple sections of strip-shaped plastic products in sequence.

[0047] Reference Figure 1-Figure 7 The continuous injection mold 1000 includes an upper mold assembly 100, a lower mold assembly 200, and a driving mechanism 300. The upper mold assembly 100 is arranged opposite to the lower mold assembly 200, and the lower mold assembly 200 forms a discharge port 201. The strip-shaped plastic product molded in the continuous injection mold 1000 can be discharged from the discharge port 201. The upper mold assembly 100 is suitable for moving toward or away from the lower mold assembly 200 along the height direction of the continuous injection mold 1000, wherein the height direction of the continuous injection mold 1000 refers to Figure 1 In the up and down direction, when the injection molding device injects the material into the continuous injection mold 1000, the injection molding device drives the upper mold assembly 100 to move close to the lower mold assembly 200, so that the upper mold assembly 100 and the lower mold assembly 200 are molded together. Similarly, when the injection molding device completes the injection molding of the strip-shaped plastic product, the injection molding device drives the upper mold assembly 100 to move away from the lower mold assembly 200, so that the upper mold assembly 100 is close to the lower mold assembly 200 to open the mold, so that the strip-shaped plastic product can be smoothly removed from the continuous injection mold 1000.

[0048] An injection tube 101 is disposed in the upper mold assembly 100 , which defines an upper mold cavity 102 . The lower mold assembly 200 includes a base 203 and a rotating disk 202 , which is rotatably connected to the base 203 and inserted into the upper mold cavity 102 . Furthermore, the rotating disk 202 is provided with a plurality of injection molding protrusions 20, and the plurality of injection molding protrusions 20 protrude from the surface of the rotating disk 202, and the plurality of injection molding protrusions 20 are arranged in sequence along the circumferential direction of the rotating disk 202, and the inner wall of the upper cavity 102 is provided with a plurality of injection molding recesses 10, and the plurality of injection molding recesses 10 correspond one-to-one to the plurality of injection molding protrusions 20, and the injection molding recesses 10 and the injection molding protrusions 20 are arranged relative to each other. When the upper mold assembly 100 and the lower mold assembly 200 are completed after the mold is closed, the injection molding protrusions 20 extend into the injection molding recesses 10, and an injection molding gap 106 is formed between the injection molding recesses 10 and the injection molding protrusions 20, and the injection molding tube 101 is connected to the injection molding recesses 10, and the injection molding tube 101 can inject material into the injection molding gap 106, so that the material forms a strip-shaped plastic product in the injection molding gap 106.

[0049] Furthermore, the injection gap 106 is connected to the discharge port 201, and the discharge port 201 is connected to the upper cavity 102, and the strip-shaped plastic product formed in the upper cavity 102 can be moved out of the continuous injection mold 1000 from the discharge port 201. The driving mechanism 300 is in transmission connection with the rotating disk 202, and the driving mechanism 300 is used to continuously drive the rotating disk 202 to rotate around the central axis of the rotating disk 202 by a first preset angle, wherein the angle formed by the line connecting two injection molding recesses 10 located at the end of the plurality of injection molding recesses 10 and the central axis of the rotating disk 202 is a second preset angle, the first preset angle is smaller than the second preset angle, and among the plurality of injection molding recesses 10, there is at least one injection molding recess 10 that is closer to the end and has a smaller opening than the other injection molding recesses 10.

[0050] Specifically, the injection molding equipment drives the upper mold assembly 100 to approach the lower mold assembly 200 along the height direction of the continuous injection mold 1000. When the injection molding equipment injects material in the injection gap 106 and the material is cooled and formed, the injection molding equipment drives the upper mold assembly 100 to move away from the lower mold assembly 200 along the height direction of the continuous injection mold 1000. The driving mechanism 300 drives the rotating disk 202 to rotate around the central axis of the rotating disk 202 by a first preset angle, so that the strip plastic product moves toward the discharge port 201 to move out of the continuous injection mold 1000, and the end of the strip plastic product moves to be opposite to the injection molding depression 10 close to the discharge port 201 among the multiple injection molding depressions 10.

[0051] The injection molding equipment drives the upper mold assembly 100 again along the height direction of the continuous injection mold 1000 to approach the lower mold assembly 200, and the injection molding equipment injects the material into the injection gap 106 again. Since the opening of at least one injection molding recess 10 on the inner wall of the upper cavity 102 is smaller, the injection gap 106 formed at the smaller injection molding recess 10 is smaller. Correspondingly, the end of the strip plastic product can form a connection portion that does not meet the requirements.

[0052] Furthermore, when the driving mechanism 300 drives the rotating disk 202 to rotate around the central axis of the rotating disk 202 by a first preset angle and the connection part that does not meet the requirements is opposite to the injection molding recess 10 of standard shape, the connection part that does not meet the requirements is inserted into the injection molding gap 106 of the standard gap size, and then the injection molding equipment performs a second injection molding on the product. The material of the second injection molding can cover the outside of the connection part of the strip plastic product that does not meet the requirements, so that the strip plastic product formed by the latter injection molding is connected to the strip plastic product formed by the previous injection molding, thereby achieving the technical effect of continuous injection molding by the injection molding equipment through the continuous injection mold 1000.

[0053] Therefore, in the process of injection molding a strip-shaped plastic product by the injection molding equipment, after a section of plastic product is formed in the injection molding gap 106, the rotating disk 202 is driven to rotate by the driving mechanism 300, so that the formed plastic product in the injection molding gap 106 is moved out of the continuous injection mold 1000, and the tail end of the plastic product is retained in the injection molding gap 106. When the plastic product is injection molded again in the injection molding gap 106, the two sections of plastic products can be connected together, so that the continuous injection mold 1000 can continuously process the strip-shaped plastic product. Compared with the prior art, the labor cost required for processing the strip-shaped plastic product can be reduced, the production efficiency of the strip-shaped plastic product can be improved, and thus the production cost of the strip-shaped plastic product can be reduced.

[0054] See also Figure 5 , Figure 6 In some embodiments of the present application, the upper mold assembly 100 includes an upper mold 103 and a mounting seat 104, the upper mold 103 is fixed to the mounting seat 104, the upper mold 103 and the mounting seat 104 jointly define an upper mold cavity 102, the injection tube 101 includes an injection main pipe 11, the injection main pipe 11 is inserted into the upper mold 103, and the injection main pipe 11 is connected to the upper mold cavity 102, and at least one injection depression 10 is provided on the end surface of the upper mold 103 opposite to the rotating disk 202. When the injection molding device is used to inject the strip-shaped plastic product, the injection molding device injects the material into the upper mold cavity 102 through the injection main pipe 11, and the injection gap 106 is formed by the injection protrusion 20 of the rotating disk 202 and the injection depression 10, so that the material can be cooled and shaped to form a strip-shaped plastic product.

[0055] See also Figure 5 In some embodiments of the present application, the upper mold assembly 100 further includes at least one sub-mold 105. In some specific embodiments, the upper mold assembly 100 is provided with two sub-molds 105. Along the circumferential direction of the rotating disk 202, the two sub-molds 105 are respectively arranged on both sides of the upper mold 103. In addition, along the circumferential direction of the rotating disk 202, the outer wall of the upper mold 103 and the inner wall of the mounting seat 104 are separated to form a mounting gap, and the sub-mold 105 can extend into or move out of the mounting gap along the radial direction of the rotating disk 202.

[0056] At the same time, the injection molding tube 101 is also provided with an injection molding branch pipe 12. The injection molding main pipe 11 is connected to the injection molding branch pipe 12. The injection molding branch pipe 12 passes through the upper mold 103 and the sub-mold 105 in sequence, and the injection molding branch pipe 12 is connected to the upper cavity 102. The end face of the sub-mold 105 opposite to the rotating disk 202 is provided with at least one injection molding recess 10. When the injection molding equipment injects a strip-shaped plastic product, the sub-mold 105 extends into the installation gap along the radial direction of the rotating disk 202, and the injection gap 106 is formed by the cooperation of the sub-mold 105, the upper mold 103 and the rotating disk 202. Specifically, the end face of the sub-mold 105 opposite to the rotating disk 202 is provided with an injection recess 10, and the injection recess 10 of the sub-mold 105 and the injection recess 10 of the upper mold 103 cooperate with the injection protrusion 20 of the rotating disk 202 to form the injection gap 106. The injection molding equipment injects the material into the injection gap 106 through the injection molding main pipe 11 and the injection molding branch pipe 12.

[0057] Furthermore, the injection molding device is provided with a sliding member and a locking member, the sliding member cooperates with the sub-mold 105 to guide, and when the sliding member moves along the first direction of the continuous injection mold 1000, the sub-mold 105 is driven to approach or move away from the rotating disk 202 along the radial direction of the rotating disk 202. The first direction of the continuous injection mold 1000 can be Figure 1 The sliding member is in the left and right direction, and there is an angle between the movement direction of the sliding member and the movement direction of the sub-mold 105. One of the sliding member and the sub-mold 105 is provided with a guide rail and the other is provided with a guide block, and the guide rail and the guide block are both obliquely arranged between the sliding member and the sub-mold 105.

[0058] The locking member is locked with the sliding member, and the locking member is used to lock the sliding member to limit the sub-mold 105 within the installation gap, wherein the locking member is constructed as a locking pin, and the sliding member has a locking groove suitable for the locking member to extend into. When the injection molding equipment injects a strip plastic product, the sliding member drives the sub-mold 105 to move to a suitable position along the radial direction of the rotating disk 202, and the locking member extends into the locking groove of the sliding member to fix the sub-mold 105 within the installation gap, thereby preventing the injection molding equipment from ejecting the material from the sub-mold 105 out of the installation gap during the injection molding gap 106.

[0059] See also Figure 5 In some embodiments of the present application, the mounting seat 104 is further provided with a positioning structure 205 for positioning the sub-mold 105. The positioning structure 205 may include a receiving member 21, an elastic member 22, and a top bead 23. The receiving member 21 has a receiving groove, and the top bead 23 is installed in the receiving groove. The top bead 23 is suitable for extending into or moving out of the receiving member 21, and the elastic member 22 is arranged between the inner bottom wall of the receiving member 21 and the top bead 23. The mounting seat 104 is provided with a mounting hole for installing the receiving member 21, and the sub-mold 105 has a positioning groove. The top bead 23 is suitable for extending into the positioning groove so that the top bead 23 is positioned and matched with the positioning groove.

[0060] When the injection molding equipment drives the sub-mold 105 to approach the rotating disk 202 along the radial direction of the rotating disk 202, the positioning groove close to the rotating disk 202 is positioned and matched with the top ball 23 to limit the spacing distance between the sub-mold 105 and the rotating disk 202, so that the size of the injection gap 106 formed between the sub-mold 105 and the rotating disk 202 meets the preset gap requirement, thereby making the consistency of each section of the strip plastic product formed by the continuous injection mold 1000 better.

[0061] When the injection molding device drives the sub-mold 105 away from the rotating disk 202 in the radial direction of the rotating disk 202, the positioning groove away from the rotating disk 202 cooperates with the top bead 23, thereby preventing the injection molding device from driving the sub-mold 105 out of the installation gap. By providing the positioning structure 205 on the mounting seat 104, it is helpful to accurately adjust the relative position between the sub-mold 105 and the mounting seat 104, and it is possible to prevent the existence of a step structure between the sub-mold 105 and the upper mold 103, and reduce the structural defects of the strip-shaped plastic product formed by injection molding between the sub-mold 105 and the upper mold 103.

[0062] In some embodiments of the present application, the first preset angle is set to α, and the second preset angle is set to β, and α and β satisfy the relationship: 360° / α=A, where A is an integer; 15°≤β≤72°. After the injection molding equipment completes one injection molding of the continuous injection mold 1000, the injection molding equipment drives the upper mold assembly 100 away from the rotating disk 202 along the height direction of the continuous injection mold 1000, and the driving mechanism 300 drives the rotating disk 202 to rotate the first preset angle. Further, after the driving mechanism 300 drives the rotating disk 202 to rotate the first preset angle, the injection molding equipment drives the upper mold assembly 100 to approach the rotating disk 202 along the height direction of the continuous injection mold 1000, so that the injection molding equipment can complete the next injection molding of the continuous injection mold 1000. It should be noted that the first preset angle can be adjusted according to actual production needs, and the angle range of the first preset angle at least partially overlaps with the angle range of the second preset angle, and by making the first preset angle divisible by 360°, the rotating disk 202 completes a working cycle after continuous rotation for multiple times. By making the first preset angle smaller than the second preset angle, the driving mechanism 300 drives the rotating disk 202 to rotate the first preset angle, which can ensure that the material of the latter injection covers one end of the strip-shaped injection molded product of the previous injection, so that the materials of multiple injections can be connected to form a strip-shaped injection molded product.

[0063] Furthermore, the continuous injection mold 1000 can also be provided with a controller and an angle detection component. The controller is communicatively connected with the angle detection component and the driving mechanism 300. The angle detection component is used to detect the rotation angle of the rotating disk 202. When the driving mechanism 300 drives the rotating disk 202 to rotate a first preset angle, the angle detection component sends a trigger signal. After receiving the trigger signal, the controller controls the driving mechanism 300 to stop, so that the driving mechanism 300 can accurately drive the rotating disk 202 to rotate the first preset angle.

[0064] See also Figure 1 In some embodiments of the present application, the lower mold assembly 200 may be provided with a plurality of rotating disks 202, which are coaxial and sequentially spaced apart, and the upper mold assembly 100 defines a plurality of upper cavities 102, which correspond one to one with the plurality of rotating disks 202. When producing a strip-shaped plastic product, the driving mechanism 300 can simultaneously drive the plurality of rotating disks 202 to rotate around the central axis of the rotating disk 202. By providing a plurality of rotating disks 202 in the lower mold assembly 200, and providing a plurality of upper cavities 102 corresponding to the rotating disks 202 in the upper cavity 102, the injection molding equipment can simultaneously produce a plurality of strip-shaped injection molded products through the continuous injection mold 1000, thereby further improving the production efficiency of the strip-shaped plastic product.

[0065] See also Figure 4 In some embodiments of the present application, the lower mold assembly 200 is further provided with a rotating shaft 204, which is coaxial with and fixedly connected to the plurality of rotating disks 202, and the driving mechanism 300 is in transmission connection with the rotating shaft 204. The driving mechanism 300 can drive the plurality of rotating disks 202 to rotate around the central axis of the rotating disk 202 by driving the rotating shaft 204. The driving mechanism 300 includes a driving motor 301 and a transmission gear set 302, the transmission gear set 302 includes a plurality of transmission gears 30 meshing in sequence, the driving motor 301 is fixedly connected to the transmission gear 30 located at the head of the plurality of transmission gears 30 connected in sequence, the rotating shaft 204 is fixedly connected to the transmission gear 30 located at the tail of the plurality of transmission gears 30 connected in sequence, the driving motor 301 can drive the rotating shaft 204 to rotate through the transmission gear set 302, and the power generated by the driving motor 301 is decelerated and torque-increased by the transmission gear set 302, and the transmission gear set 302 can smoothly drive the rotating shaft 204 to rotate. Of course, the transmission ratio between the multiple transmission gears 30 can also be adjusted according to actual production needs, so that the torque output by the drive motor 301 through the transmission gear set 302 matches the number of rotating disks 202 in the continuous injection mold 1000.

[0066] See also Figure 3 , Figure 7In some embodiments of the present application, the continuous injection mold 1000 also includes a heat exchange component 400, which includes a connector 401, a liquid inlet pipe 402, a liquid outlet pipe 403 and a heat exchange pipe 406. The rotating shaft 204 can be rotatably inserted into the connector 401, and the connector 401 has a liquid inlet 40 and a liquid outlet 41. The liquid inlet pipe 402 and the liquid outlet pipe 403 are both penetrated into the rotating shaft 204. One end of the liquid inlet pipe 402 is connected to the liquid inlet 40, and the other end of the liquid inlet pipe 402 is connected to one end of the heat exchange pipe 406. One end of the liquid outlet pipe 403 is connected to the liquid outlet 41, and the other end of the liquid outlet pipe 403 is connected to the other end of the heat exchange pipe 406. The heat exchange pipe 406 is arranged in the rotating disk 202 to form a heat exchange part, and the heat exchange medium is suitable for flowing from the liquid inlet 40 toward the liquid outlet 41.

[0067] Specifically, a first flow groove 407 and a second flow groove 408 are provided in the connecting member 401, and the first flow groove 407 and the second flow groove 408 are separated by a sealing member. The connecting member 401 is provided with a liquid inlet branch and a liquid outlet branch, the liquid inlet branch has a liquid inlet 40, and the liquid outlet branch has a liquid outlet 41. The liquid inlet branch is connected to the first flow groove 407, the first flow groove 407 is connected to the liquid inlet pipe 402, the liquid outlet branch is connected to the second flow groove 408, and the second flow groove 408 is connected to the liquid outlet pipe 403. The heat exchange medium flows into the heat exchange tube 406 through the liquid inlet 40, the liquid inlet branch, the first flow groove 407 and the liquid inlet pipe 402 in turn. After the heat exchange tube 406 exchanges heat with the rotating disk 202, the heat exchange medium is discharged through the liquid outlet pipe 403, the second flow groove 408, the liquid outlet branch and the liquid outlet 41 in turn.

[0068] Therefore, by arranging the heat exchange assembly 400 in the continuous injection mold 1000, after the injection molding equipment injects the material into the injection gap 106, the heat exchange medium exchanges heat with the material in the heat exchange tube 406 in the rotating disk 202, so as to accelerate the cooling and molding of the material. In addition, by arranging both the liquid inlet pipe 402 and the liquid outlet pipe 403 in the rotating shaft 204, the liquid inlet pipe 402 and the liquid outlet pipe 403 can make full use of the space in the rotating shaft 204, so that the structure of the continuous injection mold 1000 can be made more compact.

[0069] See also Figure 2In some embodiments of the present application, the discharge port 201 of the lower mold assembly 200 is further provided with a separation mechanism 500, which is used to separate the strip-shaped injection molded product formed in the injection gap 106 from the rotating disk 202. The separation mechanism 500 includes an upper separation member and a lower separation member, and both the upper separation member and the lower separation member can stop contacting with the strip-shaped injection molded product. When the injection molding device starts injection molding, the driving mechanism 300 drives the strip-shaped injection molded product to stop contacting with the lower separation member through the rotating disk 202. When one end of the strip-shaped injection molded product is subjected to the tangential force of the lower separation member, the strip-shaped injection molded product is separated from the rotating disk 202. Further, the upper separation member and the lower separation member cooperate to enable the strip-shaped injection molded product to be transported toward the discharge port 201. Both the upper separation member and the lower separation member can be constructed as separation rollers, and the separation rollers can prevent the strip-shaped injection molded product from being scratched when it contacts the upper separation member or the lower separation member.

[0070] Based on this, the present application further proposes an injection molding device. According to the injection molding device described in the embodiment of the present application, it includes an equipment main body and a continuous injection mold 1000. The continuous injection mold 1000 is the continuous injection mold 1000 of the above embodiment. The equipment main body is provided with an injection molding mechanism and a clamping mechanism. The injection molding mechanism is used to inject material into the injection molding main pipe 11 and the injection molding branch pipe 12 so that the material can be injected into the injection gap 106 of the continuous injection mold 1000. Before the injection molding mechanism injects material into the continuous injection mold 1000, the clamping mechanism drives the upper mold assembly 100 of the continuous injection mold 1000 to move relative to the lower mold assembly 200 along the height direction of the continuous injection mold 1000, so that an injection gap 106 is formed between the injection molding protrusion 20 of the rotating disk 202 and the injection molding recess 10 of the upper mold assembly 100. In the process of injection molding strip-shaped plastic products by the injection molding equipment, the strip-shaped injection molding products are produced by utilizing the driving mechanism 300, the upper mold assembly 100 and the lower mold assembly 200 of the continuous injection mold 1000, and the produced strip-shaped plastic products are connected. Compared with the prior art, the labor cost required for processing the strip-shaped plastic products can be reduced, the production efficiency of the injection molding equipment can be improved, and thus the production cost of the strip-shaped plastic products can be reduced.

[0071] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A continuous injection mold for an injection molding device, characterized in that: include: An upper mold assembly (100) and a lower mold assembly (200), wherein the upper mold assembly (100) is arranged opposite to the lower mold assembly (200), the lower mold assembly (200) forms a discharge port (201), the upper mold assembly (100) is suitable for moving closer to or away from the lower mold assembly (200), an injection tube (101) is arranged inside the upper mold assembly (100), the upper mold assembly (100) defines an upper mold cavity (102), and the lower mold assembly (200) comprises a base (203) and a rotating disk (202), the rotating disk (202) is rotatably connected to the base (203), and the rotating disk (202) is inserted into the upper mold cavity (102); The rotating disk (202) is provided with a plurality of injection molding protrusions (20), the plurality of injection molding protrusions (20) protrude from the surface of the rotating disk (202) and are arranged in sequence along the circumferential direction of the rotating disk (202), the inner wall of the upper mold cavity (102) is provided with a plurality of injection molding depressions (10), the plurality of injection molding depressions (10) correspond to the plurality of injection molding protrusions (20) one by one and are arranged relatively, an injection molding gap (106) is formed between the injection molding depressions (10) and the injection molding protrusions (20), the injection molding gap (106) is communicated with the outlet of the injection molding tube (101), and the discharge port (201) is communicated with the upper mold cavity (102); A driving mechanism (300) is connected to the rotating disk (202) in a transmission manner, and is used to continuously drive the rotating disk (202) to rotate around the central axis of the rotating disk (202) by a first preset angle, wherein an angle formed by a line connecting two injection molding recesses (10) located at the end of the plurality of injection molding recesses (10) and the central axis of the rotating disk (202) is a second preset angle, and the first preset angle is smaller than the second preset angle.

2. The continuous injection mold of the injection molding equipment according to claim 1, characterized in that: The upper mold assembly (100) comprises an upper mold (103) and a mounting seat (104), wherein the upper mold (103) is fixed to the mounting seat (104), and the upper mold (103) and the mounting seat (104) jointly define the upper cavity (102), and the injection molding tube (101) comprises an injection molding main pipe (11), wherein the injection molding main pipe (11) is passed through the upper mold (103) and communicated with the upper cavity (102), and the end surface of the upper mold (103) opposite to the rotating disk (202) is provided with at least one injection molding recess (10).

3. The continuous injection mold of the injection molding equipment according to claim 2, characterized in that: The upper mold assembly (100) further comprises at least one sub-mold (105). Along the circumferential direction of the rotating disk (202), the outer wall of the upper mold (103) and the inner wall of the mounting seat (104) are spaced apart to form a mounting gap. The sub-mold (105) is suitable for extending into or moving out of the mounting gap along the radial direction of the rotating disk (202). The injection molding tube (101) is further provided with an injection molding branch tube (12). The injection molding main tube (11) is connected with the injection molding branch tube (12). The injection molding branch tube (12) passes through the upper mold (103) and penetrates into the sub-mold (105). The injection molding branch tube (12) is connected with the upper cavity (102). The end face of the sub-mold (105) opposite to the rotating disk (202) is provided with at least one injection molding recess (10).

4. The continuous injection mold of the injection molding equipment according to claim 3, characterized in that: The mounting seat (104) is also provided with a positioning structure (205) for positioning the sub-mold (105).

5. A continuous injection mold of an injection molding device according to any one of claims 1 to 4, characterized in that The first preset angle is α, the second preset angle is β, α and β satisfy the relationship: 360° / α=A, where A is an integer; 15°≤β≤72°.

6. The continuous injection mold of the injection molding equipment according to claim 1, characterized in that: The lower mold assembly (200) is provided with a plurality of rotating disks (202), and the plurality of rotating disks (202) are coaxial and arranged in sequence and spaced apart. The upper mold assembly (100) defines a plurality of upper mold cavities (102), and the plurality of rotating disks (202) correspond one-to-one to the plurality of upper mold cavities (102).

7. A continuous injection mold for an injection molding device according to claim 6, characterized in that: The lower mold assembly (200) is further provided with a rotating shaft (204), the rotating shaft (204) and the plurality of rotating disks (202) are coaxial and fixedly connected, the driving mechanism (300) is transmission-connected to the rotating shaft (204), and the driving mechanism (300) is suitable for driving the rotating shaft (204) to drive the plurality of rotating disks (202) to rotate around the central axis of the rotating disk (202); The driving mechanism (300) comprises a driving motor (301) and a transmission gear set (302); the transmission gear set (302) comprises a plurality of transmission gears (30) meshing in sequence; the driving motor (301) is fixedly connected to a transmission gear (30) located at the head of the plurality of transmission gears (30) connected in sequence; the rotating shaft (204) is fixedly connected to a transmission gear (30) located at the tail of the plurality of transmission gears (30) connected in sequence; and the driving motor (301) is suitable for driving the rotating shaft (204) to rotate via the transmission gear set (302).

8. The continuous injection mold of the injection molding equipment according to claim 7, characterized in that: Also includes: A heat exchange component (400), the heat exchange component (400) comprising a connecting piece (401), a liquid inlet pipe (402), a liquid outlet pipe (403) and a heat exchange pipe (406), the rotating shaft (204) being rotatably inserted into the connecting piece (401), the connecting piece (401) having a liquid inlet port (40) and a liquid outlet port (41), the liquid inlet pipe (402) and the liquid outlet pipe (403) both being inserted into the rotating shaft (204), the liquid inlet pipe (402) and the heat exchange pipe (406 ... One end of the liquid inlet (40) is connected to the liquid inlet (40), the other end of the liquid inlet pipe (402) is connected to one end of the heat exchange pipe (406), one end of the liquid outlet pipe (403) is connected to the liquid outlet (41), the other end of the liquid outlet pipe (403) is connected to the other end of the heat exchange pipe (406), the heat exchange pipe (406) is arranged in the rotating disk (202) to form a heat exchange portion, and the heat exchange medium is suitable for flowing from the liquid inlet (40) toward the liquid outlet (41).

9. The continuous injection mold of the injection molding equipment according to claim 7, characterized in that: A separation mechanism (500) is also provided at the discharge port (201), and the separation mechanism (500) is used to separate the strip-shaped injection-molded product formed in the injection gap (106) from the rotating disk (202).

10. An injection molding device, characterized in that: include: The equipment body is provided with an injection molding mechanism and a mold clamping mechanism; A continuous injection mold (1000), wherein the continuous injection mold (1000) is a continuous injection mold (1000) of an injection molding device according to any one of claims 1 to 9, wherein the injection molding mechanism is connected to an injection molding tube (101) of the continuous injection mold (1000), and the clamping mechanism is used to drive the upper mold assembly (100) and the lower mold assembly (200) of the continuous injection mold (1000) to move in opposite or reverse directions.

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