Building block injection molding device with automatic demolding function

Abstract

The invention relates to the field of injection molding, and discloses an automatic demolding building block injection molding device which comprises an oppositely-arranged traction mechanism located on a main fixing rack and used for guiding a mold to be in an inclined state facilitating demolding. The movable mold starting mechanism is located on the built-in mold frame and matched with the guide roller structure of the built-in mold frame to form a movable mold structure for building block forming, and synchronous cooling can be achieved while demolding is conducted. And the built-in template mechanism is positioned on the fixed mold cylinder, and is matched with the embedded guide groove of the fixed mold cylinder to form a fixed mold structure for injection molding. A plurality of building block configuration mold grooves which are distributed circumferentially are adopted, uniform distribution of molten raw materials is achieved through a center input guide cylinder and an injection groove, a plurality of building block parts can be formed at the same time, the efficient production mode of one mold with multiple output is achieved, and the problem of uneven filling caused by unbalanced runners of a traditional multi-cavity mold is solved; and the product consistency is improved, the method is suitable for large-batch and standardized building block production scenes, and the productivity is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to an automatic demoulding building block injection molding device. Background Art

[0002] Building blocks are usually cubic wooden or plastic solid toys, usually decorated with letters or pictures on each surface, allowing different arrangements or construction activities. Building blocks come in various styles. Building blocks help develop intelligence and train children's hand-eye coordination. The arrangement, connection, ring shape, and symmetry of the building blocks are all good for children's intelligence. As a common plastic solid toy, building blocks are usually produced by injection molding. Injection molding equipment has the advantages of fast production speed, high efficiency, and automated operation, which can meet the needs of large-scale production of building blocks.

[0003] Traditional injection molding equipment is mostly single-cavity or, although multi-cavity, features a serial runner design. This results in long injection cycles and low output per unit time. The injection, cooling, billet cutting, and demolding processes are performed sequentially and in a step-by-step manner, making the entire cycle time-consuming. Furthermore, demolding relies heavily on manual labor or simple mechanical ejectors. Multi-cavity molds often experience parts sticking to the mold and preventing smooth removal, requiring workers to manually pry and poke. This is labor-intensive, inefficient, and prone to damage to the mold and product. Separating the gate (billet head) often requires subsequent secondary processing, adding additional steps and costs. A single mold set can typically only produce one or a few products. Switching products requires a complete mold replacement, which is time-consuming, labor-intensive, and costly. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a building block injection molding device with automated demoulding, which solves the problems of traditional injection molding equipment such as low efficiency, reliance on manual labor, poor product consistency, difficulty in demoulding and lack of versatility.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic demoulding building block injection molding device, comprising: Main fixed frame, used for fixing the structure of the building block injection molding device for automated demoulding; The built-in mold frame is located on the main fixed frame and is used to install the movable mold and fixed mold structure required for building block molding; The fixed mold cylinder is located on the built-in mold frame and is used to embed and install the built-in mold frame structure of injection molding; The opposing traction mechanism is located on the main fixed frame and is used to guide the mold to an inclined state that is convenient for demoulding; The movable mold starting mechanism is located on the built-in mold frame, and cooperates with the guide roller structure of the built-in mold frame to form the movable mold structure for building block molding. The demoulding can be synchronized with cooling; The built-in template mechanism is located on the fixed mold cylinder and cooperates with the embedded guide groove of the fixed mold cylinder to form the fixed mold structure for injection molding; The input and cutting mechanism is located on the built-in mold frame, and cooperates with the rotating groove and guide bar structure of the built-in mold frame, the building block configuration mold groove of the fixed mold frame, the input guide cylinder and the inner spiral groove to input the raw materials for building block molding and cut the blanks at the same time when demoulding; The demoulding guide mechanism is located on the built-in template mechanism, and cooperates with the composite guide groove 1, the composite guide groove 2 and the wing plate structure of the fixed mold frame to pull the built-in template mechanism to output and form an inclined demoulding state.

[0006] Preferably, the built-in mold frame is fixed in the main fixed frame, and the guide roller structure of the built-in mold frame is distributed in the built-in mold frame, the rotation groove of the built-in mold frame is set on the side wall of the built-in mold frame, and the guide bar structure is arranged in the rotation groove, the fixed mold cylinder is fixed on the input direction side wall of the built-in mold frame, and the embedded guide grooves are distributed on both sides of the fixed mold cylinder, the opposed traction mechanisms are relatively arranged on both sides of the main fixed frame, the movable mold starting mechanism slides in the built-in mold frame along the guide roller structure of the built-in mold frame, the built-in template mechanism can be embedded in the fixed mold cylinder, the input cutting batch mechanism is rotatably embedded in the fixed mold cylinder, and can inject building block forming raw materials into the built-in template mechanism, and the demoulding guide mechanism is two groups, and is distributed on both sides of the built-in template mechanism.

[0007] Preferably, the opposed traction mechanism includes an external guide rail frame and an internal guide rail frame, the external guide rail frame is fixed on both sides of the main fixed frame, the internal guide rail frame is fixed on the top of the external guide rail frame and extends into the main fixed frame, the composite guide groove 1 is arranged on the external guide rail frame, and the composite guide groove 2 is arranged on the internal guide rail frame, and the composite guide groove 2 and the composite guide groove 1 are both composed of a linear slide groove and an inclined slide groove.

[0008] Preferably, the movable mold starting mechanism includes a movable mold frame, a sliding sleeve structure is provided at the side end of the movable mold frame, and slides on the guide roller structure of the built-in mold frame through the sliding sleeve structure, and push plate structures are provided on both sides of the movable mold frame.

[0009] Preferably, the built-in template mechanism includes a fixed mold frame, which is located on the axis of the fixed mold cylinder, and the building block configuration mold grooves are circumferentially distributed on the surface of the fixed mold frame, and the injection ports are all facing the axis of the fixed mold frame. The input guide cylinder is suspended and fixed at the axis of the fixed mold frame, and there is a gap between it and the building block configuration mold groove, the inner spiral groove is arranged at the end of the axis of the fixed mold frame, and the side wall of the input guide cylinder is provided with injection grooves corresponding to the number and position of the building block configuration mold grooves.

[0010] Preferably, the input batch cutting mechanism includes an external tube, an embedded ring is fixed on the surface of the external tube, and the embedded ring is provided with a fan-shaped limit groove. The external tube rotates in the rotation groove of the built-in mold frame through the embedded ring, and the rotation groove guide bar structure of the built-in mold frame is embedded in the fan-shaped limit groove of the embedded ring, and limits the rotation of the embedded ring and the external tube. An injection tube structure is provided inside the external tube, and can be docked with the input port of the input guide cylinder. A stripping cylinder is fixed to the inner end of the external tube, and the stripping cylinder can be embedded between the building block configuration mold groove of the fixed mold frame and the input guide cylinder, and can be wedged and docked with the inner spiral groove through the external threaded ring provided on the surface. The surface of the stripping cylinder is provided with a number of building block configuration mold grooves corresponding to the fixed mold frame and a knife groove for cutting the blanks.

[0011] Preferably, the demoulding guide mechanism includes a guiding rotating arm and a push-pull slide, the guiding rotating arm is relatively fixed to the wing plate structure of the fixed mold frame, the outer end of the guiding rotating arm is fixed with an inclined traction rotating rod, the traction rotating rod is embedded and slid in the composite guide groove one through the pulley structure at the end, the push-pull slide is sleeved on the guiding rotating arm through the sleeve structure at the end, and extends to the rear side of the movable mold starting mechanism, the end of the push-pull slide is provided with a resistance plate structure, a resistance slide is embedded and slid on the push-pull slide, a top plate structure is provided in the resistance slide, and is embedded and slid in the composite guide groove two through the pulley structure of the side wall.

[0012] Preferably, the inclined slide groove of the composite guide groove one is stepped downward and is arranged on the side of the external guide rail frame close to the displacement of the movable mold starting mechanism. The inclined slide groove of the composite guide groove two is upward and is arranged on the side of the external guide rail frame close to the built-in template mechanism.

[0013] Preferably, a closed mold platform is fixed on the side wall of the movable mold frame facing the built-in mold mechanism, and a cooling air knife seat is provided on the side wall of the movable mold frame which is arranged obliquely and has an output port facing the built-in mold mechanism. A cooling cabin is embedded and fixed on the side wall of the movable mold frame away from the closed mold platform.

[0014] Preferably, the wing plate structures of the fixed mold frame are located on both sides of the fixed mold frame and can be correspondingly fitted and embedded into the embedding guide grooves of the fixed mold cylinder.

[0015] The present invention provides a building block injection molding device with automatic demoulding, which has the following beneficial effects: 1. The present invention has the ability of efficient multi-cavity synchronous molding: the equipment adopts multiple building block configuration mold grooves distributed on the circumference, and realizes the uniform distribution of molten raw materials through the central input guide cylinder and injection groove. It can mold multiple building block parts at the same time, realizing the efficient production mode of "one mold, multiple outputs", significantly reducing the production time of single parts, avoiding the uneven filling problem caused by unbalanced flow channels in traditional multi-cavity molds, improving product consistency, and being suitable for large-scale, standardized building block production scenarios, greatly improving production capacity.

[0016] 2. The present invention has an integrated movable and fixed mold structure and precise alignment capabilities: the movable mold is linearly displaced by the guide roller structure and precisely spliced ​​with the fixed mold structure (fixed mold cylinder + built-in template). The closed mold table ensures sealing and prevents overflow. The mold has high closing precision and excellent sealing performance, ensuring stable injection pressure and high product dimensional accuracy.

[0017] 3. The present invention has the ability of automatic synchronous cutting and demolding: the input cutting mechanism is rotated by the engagement of the inner spiral groove and the outer threaded ring, and the injection port blank is cut synchronously during demolding. The demolding guide mechanism cooperates with the opposite traction mechanism to realize the tilting, shaking and resetting of the fixed mold frame. The cutting action and demolding are carried out synchronously, without the need for secondary processing, reducing subsequent processing steps. The shaking demolding method guided by the stepped bevel groove effectively solves the common mold sticking problem in multi-cavity demolding, realizes full automation from injection molding to demolding, and reduces manual intervention and operating costs.

[0018] 4. The present invention has a precise mechanical structure and motion control effect: the guide rollers, limit grooves, composite guide grooves and other structures are precisely designed, the motion trajectory is controllable, the fan-shaped limit grooves prevent the stripping barrel from over-rotating, and ensure that the injection port and the knife groove are always aligned. The equipment runs stably, with high repeat positioning accuracy, suitable for long-term continuous production, strong mechanical structure reliability, low failure rate, and low maintenance cost.

[0019] 5. The present invention has a modular and integrated design: the main fixed frame serves as the basic platform, integrating the movable mold, fixed mold, blank cutting, demoulding and other modules. The fixed mold frame is detachable, and the building block configuration mold groove can be replaced according to product requirements. The modular design facilitates maintenance and component replacement, shortens downtime, and can adapt to the production of different types of building blocks by replacing the mold groove module. The equipment has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram of the main structure of the present invention Figure 1 ; Figure 2 A three-dimensional schematic diagram of the main structure of the present invention Figure 2 ; Figure 3 A three-dimensional schematic diagram of the main structure of the present invention Figure 3 ; Figure 4 A three-dimensional schematic diagram of the main structure of the present invention Figure 4 ; Figure 5 This is a schematic diagram of the built-in mold frame structure assembly of the present invention; Figure 6 This is a schematic diagram of the installed state of the built-in template mechanism of the present invention; Figure 7 It is a structural schematic diagram of the opposed traction mechanism of the present invention; Figure 8 The structure of the movable mold starting mechanism of the present invention is shown in FIG. Figure 1 ; Figure 9 The structure of the movable mold starting mechanism of the present invention is shown in FIG. Figure 2 ; Figure 10 It is a schematic cross-sectional view of the internal structure of the fixed die cylinder of the present invention; Figure 11 It is a schematic structural diagram of the blank cutting mechanism of the present invention; Figure 12 It is a schematic diagram of the splicing of the built-in template mechanism and the blank input cutting mechanism of the present invention; Figure 13 It is a schematic cross-sectional view of the built-in template structure of the present invention; Figure 14 It is a structural schematic diagram of the demoulding guide mechanism of the present invention.

[0021] Among them, 1. Main fixed frame; 2. Built-in mold frame; 3. Fixed mold cylinder; 4. Opposed traction mechanism; 5. Moving mold starting mechanism; 6. Built-in template mechanism; 7. Input cutting mechanism; 8. Demolding guide mechanism; 41. External guide rail frame; 42. Built-in guide rail frame; 43. Composite guide groove 1; 44. Composite guide groove 2; 51. Moving mold frame; 52. Closed mold table; 53. Cooling air knife seat; 54. Applied cooling chamber; 61. Fixed mold frame; 62. Input guide cylinder; 63. Inner spiral groove; 71. External tube; 72. Embedded ring; 73. Demolding cylinder; 74. External threaded ring; 81. Guide rotating arm; 82. Traction rotating rod; 83. Push-pull slide; 84. Resistance slide. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Please see the attached Figure 1 -Attached Figure 4The embodiment of the present invention provides an automatic demoulding building block injection molding device, comprising: a main fixed frame 1, used for fixing the automatic demoulding building block injection molding device structure; an internal mold frame 2 is located on the main fixed frame 1, and is used to install the movable mold and fixed mold structure required for building block molding; a fixed mold cylinder 3 is located on the internal mold frame 2, and is used to embed and install the internal mold frame structure for injection molding, the internal mold frame 2 is fixed in the main fixed frame 1, and the guide roller structure of the internal mold frame 2 is distributed in the internal mold frame 2, the rotation groove of the internal mold frame 2 is set on the side wall of the internal mold frame 2, and the guide strip structure is arranged in the rotation groove, and the fixed mold cylinder 3 is fixed to the internal mold frame 2 The input direction side wall, and the embedded guide grooves are distributed on both sides of the fixed mold cylinder 3, the opposite traction mechanisms 4 are relatively arranged on both sides of the main fixed frame 1, the movable mold starting mechanism 5 slides in the built-in mold frame 2 along the guide roller structure of the built-in mold frame 2, the built-in template mechanism 6 can be embedded in the fixed mold cylinder 3, the input cutting batch mechanism 7 is rotated and embedded in the fixed mold cylinder 3, and can inject building block molding raw materials into the built-in template mechanism 6, the demoulding guide mechanism 8 is two groups, and is distributed on both sides of the built-in template mechanism 6, the equipment is mainly for building block injection molding processing operations, can meet the molding of multiple building blocks at the same time, and demould synchronously after molding, the overall equipment structure is through the main fixed The frame 1 is combined, and the required movable mold structure movable mold starting mechanism 5 is linearly displaced along the guide roller structure of the built-in mold frame 2, and can be spliced ​​with the fixed mold structure formed by the fixed mold cylinder 3 and the built-in template mechanism 6. The fixed mold structure part required for molding is assembled by the fixed mold cylinder 3 and the built-in template mechanism 6, and is installed on one side of the built-in mold frame 2 embedded in the main fixed frame 1 to form the injection mold required for building block molding, and then the input cutting mechanism 7 installed on the built-in mold frame 2 injects the molten raw material for building block molding into the fixed mold structure formed by the fixed mold cylinder 3 and the built-in template mechanism 6 until the building block is formed inside the fixed mold cylinder 3 and the built-in template mechanism 6. After the building block is formed, the movable mold starting mechanism 5 is driven to move and separate from the fixed mold cylinder 3 and the built-in template mechanism 6. At the same time, the demoulding guide mechanism 8 configured on both sides of the built-in template mechanism 6 is pushed to drive the built-in template mechanism 6 to separate from the fixed mold cylinder 3, and the input cutting mechanism 7 synchronously cuts the injection input area of ​​the built-in template mechanism 6 to facilitate the later demoulding. The built-in template mechanism 6 is guided by the opposing traction mechanism 4 installed on both sides of the main fixed frame 1, so that the built-in template mechanism 6 produces the inclined state required for falling demoulding when it separates from the fixed mold cylinder 3, thereby driving the multiple building blocks inside the built-in template mechanism 6 to automatically separate.

[0024] Please see the attached Figure 1 -Attached Figure 7The opposing traction mechanism 4 is located on the main fixed frame 1 and is used to guide the mold to produce an inclined state that is convenient for demoulding. The opposing traction mechanism 4 includes an external guide rail frame 41 and an internal guide rail frame 42. The external guide rail frame 41 is fixed on both sides of the main fixed frame 1. The internal guide rail frame 42 is fixed on the top of the external guide rail frame 41 and extends into the main fixed frame 1. The composite guide groove 1 43 is set on the external guide rail frame 41, and the composite guide groove 2 44 is set on the internal guide rail frame 42. The composite guide groove 2 44 and the composite guide groove 1 43 are both composed of a linear slide and an inclined slide group. The inclined slide groove of the composite guide groove 1 43 is stepped downward and is arranged on the side of the external guide rail 41 close to the displacement of the movable mold starting mechanism 5. The inclined slide groove of the composite guide groove 2 44 is upward and is arranged on the side of the external guide rail 41 close to the built-in template mechanism 6. The external guide rail 41 and the built-in guide rail 42 included in the opposing traction mechanism 4 are distributed on both sides of the main fixed frame 1. The composite guide groove 1 43 installed on the external guide rail 41 and the composite guide groove 2 44 installed on the built-in guide rail 42 will respectively dock with the demoulding guide mechanisms 8 on both sides.

[0025] Please see the attached Figure 1 -Attached Figure 9The movable mold starting mechanism 5 is located on the built-in mold frame 2, and cooperates with the guide roller structure of the built-in mold frame 2 to form a movable mold structure for building block molding. The demoulding can be cooled synchronously at the same time. The movable mold starting mechanism 5 includes a movable mold frame 51. The side end of the movable mold frame 51 is provided with a sliding sleeve structure, and slides on the guide roller structure of the built-in mold frame 2 through the sliding sleeve structure. Push plate structures are provided on both sides of the movable mold frame 51. A closed mold table 52 is fixed on the side wall of the movable mold frame 51 facing the built-in template mechanism 6. The side wall of the movable mold frame 51 is provided with an inclined arrangement and the output port faces inward. The cooling air knife seat 53 of the template mechanism 6 is installed, and the side wall of the movable mold frame 51 away from the closed mold platform 52 is embedded with a cooling cabin 54. The overall equipment structure is assembled through the main fixed frame 1. The required movable mold structure and the movable mold starting mechanism 5 are linearly displaced along the guide roller structure of the built-in mold frame 2, and can be spliced ​​with the fixed mold structure formed by the fixed mold cylinder 3 and the built-in template mechanism 6. The movable mold frame 51 included in the movable mold starting mechanism 5 is sleeved on the guide roller structure inside the built-in mold frame 2 through the sleeve structure installed at the end, and can be connected with the movable mold frame 51. The closed mold platform 52, which is sealed and spliced ​​with the fixed mold cylinder 3 and the built-in template mechanism 6, is fixed on the side of the movable mold frame 51 facing the built-in template mechanism 6, and moves along with the movable mold frame 51. The cooling air knife seat 53 installed in an inclined form on the side of the movable mold frame 51 outputs air toward the built-in template mechanism 6. When the movable mold frame 51 moves and separates from the built-in template mechanism 6, the cooling air knife seat 53 can cool the surface of the built-in template mechanism 6 with air, and the applied cooling cabin 54 embedded in the side of the movable mold frame 51 can cool the blank while injection molding. Cooling and solidification accelerate the forming of the building blocks, until the building block originals are gradually formed inside the fixed mold cylinder 3 and the built-in template mechanism 6, the movable mold starting mechanism 5 is driven to move, and the movable mold frame 51 moves along the guide roller structure of the built-in mold frame 2 and separates from the fixed mold cylinder 3 and the built-in template mechanism 6. The closed mold platform 52 follows the displacement of the movable mold frame 51 and separates from the building block configuration mold groove of the fixed mold frame 61, completing the sealing. At the same time, by pushing the demoulding guide mechanism 8 configured on both sides of the built-in template mechanism 6, the built-in template mechanism 6 is driven to separate from the fixed mold cylinder 3.

[0026] Please see the attached Figure 1 -Attached Figure 13The built-in template mechanism 6 is located on the fixed mold cylinder 3, and cooperates with the embedded guide groove of the fixed mold cylinder 3 to form a fixed mold structure for injection molding. The built-in template mechanism 6 includes a fixed mold frame 61, and the fixed mold frame 61 is on the axis of the fixed mold cylinder 3, and the building block configuration mold groove is circumferentially distributed on the surface of the fixed mold frame 61. At the same time, the injection ports are all facing the axis of the fixed mold frame 61, and the input guide cylinder 62 is suspended and fixed at the axis of the fixed mold frame 61, and there is a gap between it and the building block configuration mold groove. The inner spiral groove 63 is set at the end of the axis of the fixed mold frame 61, and the side wall of the input guide cylinder 62 is provided with an injection groove corresponding to the number and position of the building block configuration mold groove. The wing plate structure of the fixed mold frame 61 is located on both sides of the fixed mold frame 61, and can be correspondingly embedded in the embedded guide groove of the fixed mold cylinder 3. The fixed mold structure part required for molding is assembled by the fixed mold cylinder 3 and the built-in template mechanism 6, and is installed in the built-in mold frame 2 embedded in the main fixed frame 1 On one side, the injection mold groove required for building block molding is formed, and the fixed mold frame 61 included in the built-in template mechanism 6 is embedded in the fixed mold cylinder 3, and the wing plate structures installed on both sides can be fitted on the surface of the fixed mold cylinder 3 along the embedding guide grooves on both sides of the fixed mold cylinder 3. When the building block configuration mold grooves arranged in a circular distribution on the fixed mold frame 61 are embedded in the fixed mold cylinder 3, they will form multiple groups of circumferentially distributed building block injection molding areas with the fixed mold cylinder 3, and the injection ports of the building block configuration mold grooves are all facing the input guide cylinder 62 installed on the axis of the fixed mold frame 61. After entering the input guide cylinder 62, the raw material can be uniformly guided to the circumferentially distributed building block configuration mold grooves by the injection groove of the input guide cylinder 62, driving multiple building block configuration mold grooves to be formed at the same time, and the inner spiral groove 63 installed on the fixed mold frame 61 is docked with the input blank cutting mechanism 7, and can drive the input blank cutting mechanism 7 to rotate when the built-in template mechanism 6 is disengaged to cut off the blank head of the injection port.

[0027] Please see the attached Figure 1 -Attached Figure 12The input batch cutting mechanism 7 is located on the built-in mold frame 2, and cooperates with the rotating groove and guide bar structure of the built-in mold frame 2, the building block configuration mold groove of the fixed mold frame 61, the input guide cylinder 62 and the inner spiral groove 63 for inputting the raw materials for building block molding and cutting the blanks at the same time when demolding. The input batch cutting mechanism 7 includes an external tube 71, and an embedded ring 72 is fixed on the surface of the external tube 71. The embedded ring 72 is provided with a fan-shaped limiting groove. The external tube 71 rotates in the rotating groove of the built-in mold frame 2 through the embedded ring 72. The rotating groove guide bar structure of the built-in mold frame 2 is embedded in the fan-shaped limiting groove of the embedded ring 72, and limits the rotation of the embedded ring 72 and the external tube 71. An injection pipe structure is provided inside the external tube 71, and can be docked with the input port of the input guide cylinder 62 The inner end of the external tube 71 is fixed with a stripping cylinder 73, which can be embedded in the block configuration die groove of the fixed die frame 61 and the input guide cylinder 62, and can be wedged and docked with the inner spiral groove 63 through the external threaded ring 74 provided on the surface. The surface of the stripping cylinder 73 is provided with a number of block configuration die grooves corresponding to the fixed die frame 61 and a knife groove for cutting the blanks. The external tube 71 included in the input cutting mechanism 7 is embedded in one side of the built-in die frame 2, and rotates in the rotating groove of the built-in die frame 2 through the embedded ring 72 installed on the external tube 71, and the stripping cylinder 73 fixed at one end of the external tube 71 can be embedded in the gap formed between the input guide cylinder 62 and the block configuration die groove of the fixed die frame 61, and the external threaded ring 74 installed on the surface of the stripping cylinder 73 can also It is embedded in the inner spiral groove 63 in the form of spiral rotation. While being embedded, the inner spiral groove 63 is used to guide the rotation and drive the knife grooves distributed on the circumference of the stripping cylinder 73 to dock with the injection groove of the input guide cylinder 62. The raw material injected by the external extrusion equipment is injected into the input guide cylinder 62 through the injection pipe structure inside the external tube 71, and then guided to each building block configuration groove of the fixed mold frame 61 by the injection groove installed on the side wall of the input guide cylinder 62 and the guide groove on the surface of the stripping cylinder 73. With the pressure sealing of the closed mold table 52, the raw material is driven to fill the building block configuration groove to form the building block configuration. The guide bar structure in the rotating groove is embedded in the fan-shaped limiting groove installed on the embedding ring 72, and the guide bar is used to limit the embedding ring 72 and the external tube 71. The rotation angle of the stripping cylinder 73 is to avoid the situation where the rotation angle of the stripping cylinder 73 is too large and it cannot dock with the injection groove of the input guide cylinder 62. The input cutting mechanism 7 synchronously cuts the injection input area of ​​the built-in template mechanism 6 to facilitate the later demolding. When the fixed mold frame 61 follows the movable mold frame 51 to separate from the fixed mold cylinder 3, the inner spiral groove 63 will synchronously move along the surface of the outer thread ring 74, and drive the stripping cylinder 73 to rotate at a small angle between the input guide cylinder 62 and the building block configuration mold groove of the fixed mold frame 61, and use the knife groove structure of the stripping cylinder 73 to synchronously cut off the connecting blank heads of multiple injection grooves of the input guide cylinder 62, so that the building block original in the building block configuration mold groove can be released and follow the fixed mold frame 61 to separate from the fixed mold cylinder 3.

[0028] Please see the attached Figure 1 -Attached Figure 14The demoulding guide mechanism 8 is located on the built-in template mechanism 6, and cooperates with the composite guide groove 1 43, the composite guide groove 2 44 and the wing structure of the fixed mold frame 61 to pull the built-in template mechanism 6 to output and form an inclined demoulding state. The demoulding guide mechanism 8 includes a guiding rotating arm 81 and a push-pull slide 83. The guiding rotating arm 81 is relatively fixed on the wing structure of the fixed mold frame 61. The outer end of the guiding rotating arm 81 is fixed with an inclined traction rotating rod 82. The traction rotating rod 82 is embedded and slides in the composite guide groove 1 43 through the pulley structure at the end. The push-pull slide 83 is sleeved on the guiding rotating arm 81 through the sleeve structure at the end and extends to the rear side of the movable mold starting mechanism 5. The end of the push-pull slide 83 is provided with a plate structure. The contact slide 84 and the resistance slide 84 are provided with a top plate structure, and are embedded and slid in the composite guide groove 2 44 through the pulley structure of the side wall. The demoulding guide mechanism 8 includes a guide rotating arm 81 fixed on the wing plate structure on both sides of the fixed mold frame 61, and the push-pull slide 83 included extends to the retraction area of ​​the movable mold starting mechanism 5, and is sleeved on the guide rotating arm 81 through the sleeve structure. When the movable mold frame 51 retracts and moves, the push plate structures on both sides will then contact and push the resistance plate structure installed at the end of the push-pull slide 83, driving the push-pull slide 83 to follow the movable mold frame 51 to move, and the push-pull slide 83 also drives the fixed mold frame 61 and the input guide cylinder 62 to synchronously follow the movable mold frame 51 through the sleeve structure, and drives the fixed mold frame 61 to form a block configuration mold groove and its inner The partially formed building block original moves, and the demoulding guide mechanism 8 is guided along the opposing traction mechanism 4 installed on both sides of the main fixed frame 1. The opposing traction mechanism 4 includes an external guide rail 41 and an internal guide rail 42 distributed on both sides of the main fixed frame 1. The composite guide groove 1 43 installed on the external guide rail 41 and the composite guide groove 2 44 installed on the internal guide rail 42 will respectively dock with the demoulding guide mechanism 8 on both sides. The traction rotating rod 82 fixed at the outer end of the guiding rotating arm 81 is embedded in the composite guide groove 1 43 for displacement through the pulley structure. When the fixed mold frame 61 is retracted by the traction of the push-pull slide 83, the traction rotating rod 82 will slide along the linear groove area of ​​the composite guide groove 1 43 until the movable mold frame 51 pushes the push-pull slide 83 to retract. At the end point, the pulley structure of the traction rotating rod 82 will enter the stepped inclined groove of the built-in guide rail frame 42 along the linear groove of the composite guide groove 43, and descend along the stepped inclined groove, and drive the traction rotating rod 82 to drive the guide rotating arm 81 and the fixed mold frame 61 to rotate and tilt. The step structure drives the pulley structure of the traction rotating rod 82 to intermittently descend and form a shaking traction force, driving the fixed mold frame 61 to shake, so as to accelerate the building blocks in the multiple building block configuration mold grooves of the fixed mold frame 61 to tilt and fall out of the building block configuration mold groove, and the residual blanks in the input guide cylinder 62 also follow the shaking and tilting of the fixed mold frame 61 and separate from the input guide cylinder 62, thereby achieving the ability of multi-batch synchronous molding and synchronous automatic separation, until the building block originals are completely demolded.When the movable die frame 51 is driven to move towards the built-in die plate mechanism 6, the two side push plate structures of the movable die frame 51 will contact the added contact sliding plate 84 on the push-pull sliding frame 83, and through the top plate structure of the contact sliding plate 84, the push-pull sliding frame 83 is driven to move the guide rotating arm 81 and the fixed die frame 61 towards the direction of the fixed die cylinder 3, the push-pull sliding frame 83 will gradually separate from the stepped inclined groove of the composite guide groove one 43, and enter the straight groove, drive the fixed die frame 61 to end the inclination and reset, and the contact sliding plate 84 will also move along the composite guide groove two 44 straight groove structure added to the built-in guide rail frame 42, and drive the fixed die frame 61 to move close to the fixed die cylinder 3, until the fixed die frame 61 is completely reset to the fixed die cylinder 3, the inner spiral groove 63 will be re-engaged with the outer threaded ring 74, and the trend of the outer threaded ring 74 and the stripping cylinder 73 will rotate and reset, the knife groove added to its surface will re-dock with the injection groove of the fixed die frame 61, and the pulley structure of the contact sliding plate 84 will slide into the inclined groove part along the composite guide groove two 44 straight groove, and drive the contact sliding plate 84 to rise, until the top plate structure of the contact sliding plate 84 completely separates from the push plate structure of the movable die frame 51, the reset push of the movable die frame 51 is ended, and the movable die frame 51 is re-pressed and sealed with the fixed die frame 61.

[0029] Working principle: This equipment is mainly aimed at the injection molding processing of building blocks. It can meet the molding of multiple building blocks at the same time and demold synchronously after molding. The overall equipment structure is assembled through the main fixed frame 1. The required movable mold structure and movable mold starting mechanism 5 are linearly displaced along the guide roller structure of the built-in mold frame 2, and can be spliced ​​with the fixed mold structure formed by the fixed mold cylinder 3 and the built-in template mechanism 6. The movable mold frame 51 included in the movable mold starting mechanism 5 is sleeved on the guide roller structure inside the built-in mold frame 2 through the sleeve structure installed at the end. The closed mold table 52 that can be sealed and spliced ​​with the fixed mold cylinder 3 and the built-in template mechanism 6 is fixed on the side of the movable mold frame 51 facing the built-in template mechanism 6, and at the same time follows the displacement of the movable mold frame 51, and the cold plate installed on the side of the movable mold frame 51 in an inclined form The cooling air knife seat 53 outputs air toward the built-in template mechanism 6. When the movable mold frame 51 is displaced and separated from the built-in template mechanism 6, the cooling air knife seat 53 can cool the surface of the built-in template mechanism 6 with air. The cooling chamber 54 embedded in the side of the movable mold frame 51 can cool and solidify the blank during injection molding, thereby accelerating the molding of the building block. The fixed mold structure required for molding is assembled from the fixed mold cylinder 3 and the built-in template mechanism 6, and is installed on one side of the built-in mold frame 2 embedded in the main fixed frame 1 to form the injection mold groove required for building block molding. The fixed mold frame 61 included in the built-in template mechanism 6 is embedded in the fixed mold cylinder 3, and the wing plate structures installed on both sides can be attached to the surface of the fixed mold cylinder 3 along the embedded guide grooves on both sides of the fixed mold cylinder 3, and the fixed mold frame 6 When the building block configuration grooves arranged in a circumferential distribution on 1 are embedded in the fixed mold cylinder 3, they will form multiple groups of circumferentially distributed building block injection molding areas with the fixed mold cylinder 3, and the injection ports of the building block configuration grooves are all oriented towards the input guide cylinder 62 installed on the axis of the fixed mold frame 61. After entering the input guide cylinder 62, the raw materials are uniformly guided to the circumferentially distributed building block configuration grooves by the injection grooves of the input guide cylinder 62, driving multiple building block configuration grooves to be molded at the same time, and the internal spiral groove 63 installed on the fixed mold frame 61 is docked with the input blank cutting mechanism 7, and can drive the input blank cutting mechanism 7 to rotate when the built-in template mechanism 6 is disengaged to cut off the blank head of the injection port, and the input blank cutting mechanism 7 installed by the built-in mold frame 2 is directed to the fixed mold structure formed by the fixed mold cylinder 3 and the built-in template mechanism 6. The molten raw material for building block molding is injected into the structure, and the external tube 71 included in the input cutting mechanism 7 is embedded in one side of the built-in mold frame 2, and rotates in the rotating groove of the built-in mold frame 2 through the embedding ring 72 installed on the external tube 71, and the stripping cylinder 73 fixed at one end of the external tube 71 can be embedded in the gap formed between the input guide cylinder 62 and the building block configuration mold groove of the fixed mold frame 61, and the external threaded ring 74 installed on the surface of the stripping cylinder 73 can also be embedded in the internal spiral groove 63 in the form of spiral rotation. While being embedded, the internal spiral groove 63 will be used to guide the rotation and drive the circumferentially distributed knife grooves of the stripping cylinder 73 to dock with the injection groove of the input guide cylinder 62. The raw material injected by the external extrusion equipment is injected into the input guide cylinder 62 through the injection tube structure inside the external tube 71.The raw materials are then guided into the various building block configuration grooves of the fixed mold frame 61 by the injection grooves added to the side walls of the input guide cylinder 62 and the guide grooves on the surface of the stripping cylinder 73, and the pressure-sealed closed mold platform 52 is used to drive the raw materials to fill the building block configuration grooves to form the building block configuration. The guide bar structure in the rotating groove is embedded in the fan-shaped limit grooves added to the embedding ring 72. The guide bar is used to limit the rotation angle of the embedding ring 72 and the external tube 71 to avoid the situation where the stripping cylinder 73 rotates too much and cannot dock with the injection groove of the input guide cylinder 62. After the building block originals are gradually formed inside the fixed mold cylinder 3 and the built-in template mechanism 6, the movable mold starting mechanism 5 is driven to move, and the movable mold frame 51 moves along the guide roller structure of the built-in mold frame 2, and separates from the fixed mold cylinder 3 and the built-in template Mechanism 6, the closing mold table 52 follows the displacement of the movable mold frame 51, and disengages from the building block configuration mold groove of the fixed mold frame 61 to complete the sealing, and at the same time, by pushing the demoulding guide mechanism 8 configured on both sides of the built-in template mechanism 6, drives the built-in template mechanism 6 to disengage from the fixed mold cylinder 3, and the demoulding guide mechanism 8 includes a guide rotating arm 81 fixed on the wing plate structure on both sides of the fixed mold frame 61, and the push-pull slide 83 included extends to the retraction area of ​​the movable mold starting mechanism 5, and is sleeved on the guide rotating arm 81 through the sleeve structure. When the movable mold frame 51 retracts and displaces, the push plate structures on both sides will subsequently contact and push the abutment structure installed at the end of the push-pull slide 83, driving the push-pull slide 83 to follow the displacement of the movable mold frame 51, and the push-pull slide 83 also drives the fixed mold frame 61 through the sleeve structure. The mold frame 61 and the input guide cylinder 62 synchronously follow the movable mold frame 51, and drive the fixed mold frame 61 building block configuration mold groove and the building block originals formed therein to move, while the input cutting mechanism 7 synchronously cuts the injection input area of ​​the built-in template mechanism 6 to facilitate later demolding. When the fixed mold frame 61 follows the movable mold frame 51 to separate from the fixed mold cylinder 3, the inner spiral groove 63 will synchronously move along the surface of the outer thread ring 74, and drive the stripping cylinder 73 to rotate at a small angle between the input guide cylinder 62 and the building block configuration mold groove of the fixed mold frame 61, and use the knife groove structure of the stripping cylinder 73 to synchronously cut off the connecting blank heads of multiple injection grooves of the input guide cylinder 62, so that the building block originals in the building block configuration mold groove can be released and follow the fixed mold frame 61 to separate from the fixed mold. The demoulding guide mechanism 8 is guided by the opposing traction mechanism 4 installed on both sides of the main fixed frame 1. The external guide rail 41 and the internal guide rail 42 included in the opposing traction mechanism 4 are distributed on both sides of the main fixed frame 1. The composite guide groove 1 43 installed on the external guide rail 41 and the composite guide groove 2 44 installed on the internal guide rail 42 will respectively dock with the demoulding guide mechanism 8 on both sides. The traction rotating rod 82 fixed at the outer end of the guiding rotating arm 81 is embedded in the composite guide groove 1 43 for displacement through the pulley structure. When the fixed mold frame 61 is retracted by the traction of the push-pull slide 83, the traction rotating rod 82 will slide along the linear groove area of ​​the composite guide groove 1 43 until the movable mold frame 51 pushes the push-pull slide 83 to reach the retraction end point.The pulley structure of the traction rotating rod 82 will enter the stepped inclined groove of the built-in guide rail frame 42 along the linear groove of the composite guide groove 43, and descend along the stepped inclined groove, and drive the traction rotating rod 82 to drive the guide rotating arm 81 and the fixed mold frame 61 to rotate and tilt. The step structure drives the pulley structure of the traction rotating rod 82 to intermittently descend, and form a shaking traction force, driving the fixed mold frame 61 to shake, so as to accelerate the tilting and falling of the building blocks in the multiple building block configuration mold grooves of the fixed mold frame 61. The wood structure mold groove is formed, and the residual blank in the input guide cylinder 62 also follows the shaking and tilting of the fixed mold frame 61 and separates from the input guide cylinder 62, thereby achieving the ability of multi-batch synchronous molding and synchronous automatic separation. Until the building block original is completely demoulded, the movable mold frame 51 is driven to move toward the direction of the built-in template mechanism 6, and the push plate structures on both sides of the movable mold frame 51 will contact the resistance slide 84 installed on the push-pull slide 83, and drive the push-pull slide 83 to drive the guide slide 83 through the top plate structure of the resistance slide 84. The guide arm 81 and the fixed mold frame 61 begin to move toward the fixed mold cylinder 3, and the push-pull slide 83 will gradually break away from the stepped inclined groove of the composite guide groove 1 43 and enter the linear groove, driving the fixed mold frame 61 to stop tilting and reset. The resistance slide 84 also moves along the linear groove structure of the composite guide groove 2 44 installed on the built-in guide rail 42, and drives the fixed mold frame 61 to move closer to the fixed mold cylinder 3 until the fixed mold frame 61 is completely reset to the fixed mold cylinder 3, and the inner spiral groove 63 is aligned with the outer thread ring 7. 4 is re-engaged, and the external thread ring 74 and the stripper cylinder 73 are rotated and reset. The knife grooves installed on their surfaces will re-align with the injection grooves of the fixed mold frame 61, and the pulley structure of the resistance slide 84 will slide along the linear groove of the composite guide groove 244 into the inclined groove part, driving the resistance slide 84 to rise until the top plate structure of the resistance slide 84 is completely separated from the push plate structure of the movable mold frame 51. The reset and push of the movable mold frame 51 is completed, and the movable mold frame 51 is then pressed and sealed again with the fixed mold frame 61.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic demoulding building block injection molding device, characterized in that: include: A main fixed frame (1) is used for fixing the structure of the building block injection molding device for automatic demoulding; The built-in mold frame (2) is located on the main fixed frame (1) and is used to install the movable mold and fixed mold structure required for building block molding; The fixed mold cylinder (3) is located on the built-in mold frame (2) and is used for embedding and installing the built-in mold frame structure for injection molding; The opposing traction mechanism (4) is located on the main fixed frame (1) and is used to guide the mold to an inclined state that facilitates demoulding; The movable mold starting mechanism (5) is located on the built-in mold frame (2) and cooperates with the guide roller structure of the built-in mold frame (2) to form a movable mold structure for building block molding, and can be cooled synchronously during demoulding; The built-in template mechanism (6) is located on the fixed mold cylinder (3) and cooperates with the embedded guide groove of the fixed mold cylinder (3) to form a fixed mold structure for injection molding; The input batch cutting mechanism (7) is located on the built-in mold frame (2), and cooperates with the rotating groove and guide bar structure of the built-in mold frame (2), the building block configuration mold groove of the fixed mold frame (61), the input guide cylinder (62) and the inner spiral groove (63) to input the raw materials for building block molding and cut the blanks at the same time when demoulding; The demoulding guide mechanism (8) is located on the built-in template mechanism (6), and cooperates with the composite guide groove 1 (43), the composite guide groove 2 (44) and the wing plate structure of the fixed mold frame (61) to pull the built-in template mechanism (6) out and form an inclined demoulding state.

2. The automatic demoulding building block injection molding device according to claim 1, characterized in that: The built-in mold frame (2) is fixed in the main fixed frame (1), and the guide roller structure of the built-in mold frame (2) is distributed in the built-in mold frame (2), the rotation groove of the built-in mold frame (2) is set on the side wall of the built-in mold frame (2), and the guide bar structure is arranged in the rotation groove, the fixed mold cylinder (3) is fixed on the input direction side wall of the built-in mold frame (2), and the embedded guide grooves are distributed on both sides of the fixed mold cylinder (3), the opposed traction mechanism (4) is relatively arranged on both sides of the main fixed frame (1), the movable mold starting mechanism (5) slides in the built-in mold frame (2) along the guide roller structure of the built-in mold frame (2), the built-in template mechanism (6) can be embedded in the fixed mold cylinder (3), the input batch cutting mechanism (7) is rotatably embedded in the fixed mold cylinder (3), and can inject building block forming raw materials into the built-in template mechanism (6), and the demoulding guide mechanism (8) is two groups and is distributed on both sides of the built-in template mechanism (6).

3. The automatic demoulding building block injection molding device according to claim 1, characterized in that: The opposed traction mechanism (4) comprises an external guide rail frame (41) and an internal guide rail frame (42), wherein the external guide rail frame (41) is fixed on both sides of the main fixed frame (1), and the internal guide rail frame (42) is fixed on the top of the external guide rail frame (41) and extends into the main fixed frame (1), the composite guide groove 1 (43) is arranged on the external guide rail frame (41), and the composite guide groove 2 (44) is arranged on the internal guide rail frame (42), and the composite guide groove 2 (44) and the composite guide groove 1 (43) are both composed of a linear slide groove and an inclined slide groove.

4. The automatic demoulding building block injection molding device according to claim 1, characterized in that: The movable mold starting mechanism (5) comprises a movable mold frame (51), a sliding sleeve structure is provided at the side end of the movable mold frame (51), and slides on the guide roller structure of the built-in mold frame (2) through the sliding sleeve structure, and push plate structures are provided on both sides of the movable mold frame (51).

5. The automatic demoulding building block injection molding device according to claim 1, characterized in that: The built-in template mechanism (6) includes a fixed mold frame (61), the fixed mold frame (61) is located on the axis of the fixed mold cylinder (3), and the building block configuration mold grooves are circumferentially distributed on the surface of the fixed mold frame (61), and the injection ports are all oriented toward the axis of the fixed mold frame (61). The input guide cylinder (62) is suspended and fixed at the axis of the fixed mold frame (61), and there is a gap between it and the building block configuration mold groove. The inner spiral groove (63) is arranged at the end of the axis of the fixed mold frame (61), and the side wall of the input guide cylinder (62) is provided with injection grooves corresponding to the number and position of the building block configuration mold grooves.

6. The automatic demoulding building block injection molding device according to claim 1, characterized in that: The input batch cutting mechanism (7) includes an external tube (71), an embedded ring (72) is fixed on the surface of the external tube (71), and the embedded ring (72) is provided with a fan-shaped limit groove. The external tube (71) rotates in the rotation groove of the internal mold frame (2) through the embedded ring (72). The rotation groove guide bar structure of the internal mold frame (2) is embedded in the fan-shaped limit groove of the embedded ring (72) and limits the rotation of the embedded ring (72) and the external tube (71). The external tube (71) is provided with a fan-shaped limit groove. An injection tube structure is provided, and can be docked with the input port of the input guide tube (62); a stripping tube (73) is fixed to the inner end of the external tube (71); the stripping tube (73) can be embedded between the building block configuration groove of the fixed die frame (61) and the input guide tube (62), and can be wedge-jointed with the inner spiral groove (63) through an external threaded ring (74) provided on the surface; the surface of the stripping tube (73) is provided with a number of building block configuration grooves corresponding to the fixed die frame (61) and a knife groove for cutting the blanks.

7. The automatic demoulding building block injection molding device according to claim 1, characterized in that: The demoulding guide mechanism (8) includes a guide rotating arm (81) and a push-pull slide (83), wherein the guide rotating arm (81) is relatively fixed to the wing plate structure of the fixed mold frame (61), and an inclined traction rotating rod (82) is fixed to the outer end of the guide rotating arm (81), and the traction rotating rod (82) is embedded and slid in the composite guide groove (43) through the pulley structure at the end, and the push-pull slide (83) is sleeved on the guide rotating arm (81) through the sleeve structure at the end and extends to the rear side of the movable mold starting mechanism (5), and a resistance plate structure is provided at the end of the push-pull slide (83), and a resistance slide (84) is embedded and slid on the push-pull slide (83), and a top plate structure is provided in the resistance slide (84), and the resistance slide (84) is embedded and slid in the composite guide groove (44) through the pulley structure of the side wall.

8. The automatic demoulding building block injection molding device according to claim 3, characterized in that: The inclined chute of the composite guide groove 1 (43) is stepped downwardly inclined and is arranged on the side of the external guide rail frame (41) close to the displacement of the movable mold starting mechanism (5). The inclined chute of the composite guide groove 2 (44) is upwardly inclined and is arranged on the side of the external guide rail frame (41) close to the internal template mechanism (6).

9. The automatic demoulding building block injection molding device according to claim 4, characterized in that: A closed mold platform (52) is fixed to the side wall of the movable mold frame (51) facing the built-in mold mechanism (6), a cooling air knife seat (53) arranged obliquely and with an output port facing the built-in mold mechanism (6) is provided on the side wall of the movable mold frame (51), and a pasting cooling chamber (54) is embedded and fixed to the side wall of the movable mold frame (51) away from the closed mold platform (52).

10. The automatic demoulding building block injection molding device according to claim 5, characterized in that: The wing plate structures of the fixed die frame (61) are located on both sides of the fixed die frame (61) and can be correspondingly fitted and embedded into the embedding guide grooves of the fixed die cylinder (3).

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