Horizontal injection molding device for rubber product production

Abstract

The invention discloses a horizontal injection molding device for rubber product production, and belongs to the technical field of injection molding, the horizontal injection molding device comprises a horizontal injection molding machine main body, the two sides of the horizontal injection molding machine main body are both provided with melting injection molding mechanisms, the horizontal injection molding machine also comprises two die holders, the two die holders are respectively connected with the corresponding melting mechanisms, and the two die holders are respectively connected with the melting injection molding mechanisms. At least one die holder is slidably connected to one side of the horizontal injection molding machine main body, and the other die holder is mounted on one side of the horizontal injection molding machine main body. According to the injection molding machine, the two injection molding materials which are injected respectively can be fully cast and mixed through negative pressure suction, the coupling effect of the two injection molding materials after injection molding is improved, the weld mark strength of the joint surface is improved, interface crystallinity difference caused by heat loss of the injected materials can be avoided through synchronous injection molding of the two materials, the interface stripping risk is reduced, and the service life of the injection molding materials is prolonged. And negative pressure suction can improve the casting effect of the molten material in the concave cavity, and the bonding strength of the molten material and the injection molding material in the second mold core is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding, and in particular relates to a horizontal injection molding device for producing rubber products. Background Art

[0002] The clamping part and injection part of the horizontal injection molding machine are on the same horizontal center line, and the mold is opened horizontally, which is easy to operate and maintain. The center of gravity of the machine is low and the installation is relatively stable. After the product is ejected, it can automatically fall down by gravity, which makes it easy to achieve fully automatic operation.

[0003] When rubber products are injection molded by a horizontal injection molding machine, if rubber products such as anti-slip mats are injected with multi-component melts, the flow of the melt in the cavity depends on the rheological characteristics of the material itself, resulting in poor stability of the melt weld line and weakened physical properties of the bonding surface. There is room for improvement. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the casting of the melt in the cavity depends on the rheological characteristics of the material itself, resulting in poor stability of the melt weld line, and to propose a horizontal injection molding device for the production of rubber products.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A horizontal injection molding device for producing rubber products, comprising a horizontal injection molding machine body, both sides of which are provided with melt injection molding mechanisms, and further comprising: There are two mold bases, each of which is connected to a corresponding melting mechanism. At least one mold base is slidably connected to one side of the horizontal injection molding machine body, and the other mold base is installed on the other side of the horizontal injection molding machine body. A first mold core and a second mold core are respectively installed in corresponding side mold seats, and the first mold core and the second mold core both have a mold cavity and a runner cavity, and different injection molding materials are injected through the first mold core and the second mold core; Two ventilation seats, the two ventilation seats are installed in the empty grooves on both sides of the first mold core and connected to the mold cavity, wherein the ventilation seats are provided with ventilation components, which are connected to the runner cavity of the first mold core through the ventilation components; An adjusting component is installed in the ventilation seat and contacts the ventilation component, and the ventilation component connects the first core cavity and the runner cavity through the adjusting component; A trigger rod is installed on the rear side of the trigger rod. The electric push rod is installed in a hollow groove opened on the side of the second mold core corresponding to the first mold core, and an air path interface for negative pressure suction is provided in the hollow groove of the second mold core. After the second mold core is in contact with the first mold core, a flow cavity is formed with the air exchange seat. Negative pressure suction causes the two streams of injection molding plastic in the cavity of the first mold core and the second mold core to be mixed.

[0006] Different raw materials are melted and mixed through the melt injection molding mechanisms on both sides. The driving part of the horizontal injection molding machine body drives the mold base to slide and then drives the movable mold base to move to the fixed mold base on the adjacent side. When the second mold core contacts the first mold core, the trigger rod can open the flow channel cavity by triggering the ventilation component. At this time, the external negative pressure suction equipment can suck the air in the cavity of the first mold core through the air path interface. At this time, the melt injection molding mechanism can perform injection molding into the first mold core and the second mold core respectively. The two injected injection molding materials can be fully cast and mixed by negative pressure suction, thereby improving the coupling effect of the two injection molding materials after injection molding and improving the strength of the weld mark on the bonding surface. In addition, the simultaneous injection molding of the two materials can avoid the heat loss of the injected materials causing the difference in interface crystallinity, reduce the risk of interface peeling, and improve the casting effect of the molten material in the concave cavity through negative pressure suction, thereby improving the bonding strength with the injection molding material in the second mold core. Preferably, it also includes: A plurality of concave cavities are arranged in an array in the first core cavity, and convex blocks are formed by injection molding into the concave cavities; The injection plastic tube is extended and arranged in the flow channel cavity of the first mold core and the second mold core, and the discharge port of the injection plastic tube in the first mold core extends into the concave cavity at the corresponding position respectively; The injection cavity is installed outside the first mold core and the second mold core and is communicated with the corresponding injection plastic pipe. The injection cavity is connected to the discharge port of the melt injection mechanism of the horizontal injection molding machine.

[0007] Preferably, the ventilation component includes: A plurality of ventilation covers are arrayed along the length direction of the ventilation seat and arranged in a U-shape in the through holes opened on the circumference of the ventilation seat, and the ventilation covers on the corresponding sides extend through the through holes to the first mold core cavity, the first mold core flow channel cavity and the first mold core film frame surface at the corresponding positions; The movable barrier unit is movably and slidably connected to the ventilation hood and closes the ventilation opening. The second mold core and the first mold core are engaged with each other to cause the trigger rod to trigger the movable barrier unit in the ventilation hood to open the flow channel. The plurality of movable barrier units are configured as: a plurality of triggering parts driven by the trigger rod and a controlled part driven by the adjustment assembly. After being driven by the triggering part, the adjustment assembly drives the other two movable barrier units serving as the controlled parts to open the flow channel for negative pressure suction. The first blocking ring is connected to the front side of the ventilation hood, and the flow channel of the ventilation hood is sealed by the first blocking ring and the movable blocking unit being in close contact.

[0008] Preferably, the ventilation component further includes: A shielding cover is connected to an opening on one side of the ventilation cover away from the first barrier ring, and the shielding cover has a plurality of ventilation ports; A closing spring is connected to the outside of the movable barrier unit, one end of which is connected to the inside of the shielding cover. The elastic force of the closing spring allows the movable barrier unit to fully fit the first barrier ring on the front side. The guide pipe is connected to the rear side of the shielding cover located on the surface side of the first core film frame, so that the exhaust gas from the ventilation port of the shielding cover on the opposite side is accelerated and led out through the guide pipe.

[0009] Preferably, the mobile blocking unit includes: A shift rod, slidably connected to the shielding cover; The blocking block is connected to one end of the shift rod and contacts the blocking ring when the shift rod slides in the shield. The cross-section of the blocking block is conical, and the inner cross-section of the blocking ring is conical. One side of the blocking block is connected to one end of the closing spring, and the elastic force of the closing spring makes the blocking block and the blocking ring fit tightly together. The force-bearing wedge surface is arranged on the side of the moving rod away from the blocking block, and the contact between the force-bearing wedge block and the adjustment component drives the opposite side to move the blocking unit to open the flow cavity.

[0010] The movable blocking unit can close the ventilation seat on the corresponding side to maintain the sealing effect inside the ventilation seat. When the second mold core moves and contacts the first mold core, the electric push rod can be synchronously controlled to extend to drive the trigger rod to squeeze the block on the corresponding side. The block is pressed to separate from the first blocking ring to open the suction gap. The movement of the block can drive the shift rod and the rear force wedge surface to squeeze the control rod. The brake block on one side of the control rod is pressed to move and drive the brake block on the other side to separate from the other force wedge surface. At this time, the shift rod on this side that is not pressed can pull the block on the opposite side to move under the elastic force of the closing spring to open the gap, thereby establishing suction flow between the inner cavity of the ventilation seat and the first mold core cavity and the runner cavity.

[0011] Preferably, the adjustment component includes: A control rod is slidably connected to the ventilation seat, and the control rod contacts the corresponding shift rod; Multiple brake blocks are arranged relative to each other along the length of the control rod, and the brake blocks are in contact with corresponding force-bearing wedge surfaces. The flow channel is opened by moving the control rod out of contact with the force-bearing wedge surfaces; A suction seat is connected to the side wall of the ventilation seat, the suction seat extends to the inner side of the first core cavity, the suction seat has a plurality of suction ports, and a second barrier ring is provided in the suction port; The closing plate can be slidably connected to the ventilation seat. A plurality of blocking cone blocks are arranged in an array on one side of the closing plate. After the blocking cone blocks move, they close the second blocking ring.

[0012] Preferably, the adjustment component further includes: Sliding sleeves are arranged on both sides of the closing plate, wherein sliding rods are slidably connected in the sliding sleeves, and the sliding rods are connected to the inner cavity of the ventilation seat; The return spring is sleeved on the outside of the slide rod, and the two ends of the return spring are respectively connected to the end of the slide rod and the opposite surface of the slide sleeve.

[0013] Preferably, the adjustment component further includes: A plurality of driving blocks, each of the driving blocks including an L-shaped fixing portion and a wedge-shaped portion, wherein the L-shaped fixing portion is connected to the bottom of the closing plate, and the wedge-shaped portion is connected to the bottom side of the L-shaped fixing portion; Multiple pressure rods are arranged in an array along the length direction of the control rod. The L-shaped fixing portion has an opening. One end of the pressure rod is inserted into the opening and contacts the inclined wedge surface of the wedge-shaped portion. The control rod moves to push the pressure rod to squeeze the wedge-shaped portion so that the closing plate opens the flow cavity.

[0014] The multiple drive blocks arranged in an array on the top of the closing plate can cooperate with the pressure rod to maintain the movement stability of the closing plate. The movement of the closing plate outside the sliding rod through the sliding sleeves on both sides is more stable, which can avoid shaking and deviation and improve the sealing effect.

[0015] Preferably, the adjustment component further includes: The telescopic rod includes a telescopic portion and a fixed portion, the telescopic portion is connected to one end of the control rod, and the fixed portion is connected to the ventilation seat through a mounting member; A buffer spring, with both ends of the buffer spring connected to corresponding positions of the fixing portion and one end of the control rod respectively; A plurality of guide covers are connected to both sides of the closing plate corresponding to the blocking cone block, and the guide covers are sleeved on the outside of the blocking cone block; A plurality of flow slots are arranged in a circumferential array on the inner side of the sealing plate corresponding to the guide cover, so as to allow the negative pressure suction airflow to pass through the flow slots and enter the ventilation seat.

[0016] Preferably, it also includes: A plurality of heat sinks are arranged in an array along the axis direction of the injection-molded plastic tube, and the heat sinks are heat dissipation components.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, the melt injection molding mechanism can perform injection molding into the first mold core and the second mold core respectively. The two injected injection materials can be fully cast and mixed by negative pressure suction, thereby improving the coupling effect of the two injection materials after injection molding and improving the strength of the weld mark on the bonding surface. The simultaneous injection molding of the two materials can avoid the heat loss of the injected materials causing the difference in interface crystallinity and reduce the risk of interface peeling. The negative pressure suction can improve the casting effect of the molten material in the concave cavity and improve the bonding strength with the injection molding material in the second mold core.

[0018] 2. In the present invention, by opening the flow cavity between the first core cavity and the runner cavity, negative pressure suction can synchronously suck the air in the runner cavity of the first core, so that the heat generated by the material flow in the runner cavity of the first core is taken away by negative pressure suction. By locally sucking and dissipating heat of the injection molding plastic tube in the runner cavity of the first core, the temperature of the molten material in the injection molding plastic tube is avoided from being too high, affecting the viscosity of the molten material, improving the injection molding effect of multiple groups of concave cavities in the array, and reducing the influence of local excessive temperature caused by shear heat of molten material flow.

[0019] 3. In the present invention, by controlling the trigger rod of the electric push rod to separate from the corresponding blocking block, the reset spring can use its own pulling to drive the closing plate to reset to maintain the blocking of the second blocking ring by the blocking cone block, avoiding negative pressure suction flow channel into the molten material, improving the sealing effect, avoiding excessive suction causing overflow of the material in the first core cavity, and improving the negative pressure suction and guidance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a horizontal injection molding device for rubber product production proposed by the present invention; Figure 2 This is a schematic diagram of the disassembled structure of a horizontal injection molding device for rubber product production proposed by the present invention; Figure 3 This is a schematic diagram of the first mold core structure of a horizontal injection molding device for rubber product production proposed by the present invention; Figure 4 The present invention proposes Figure 3 A schematic diagram of the structure of the enlarged part A; Figure 5 This is a schematic cross-sectional structural diagram of a ventilation seat portion of a horizontal injection molding device for rubber product production proposed by the present invention; Figure 6 The present invention proposes Figure 5 A schematic diagram of the structure of the enlarged portion B; Figure 7 This is a schematic diagram of the lateral structure of an adjustment component of a horizontal injection molding device for rubber product production proposed by the present invention; Figure 8 This is a schematic diagram of the structure of the adjustment component of a horizontal injection molding device for rubber product production proposed by the present invention; Figure 9 This is a schematic structural diagram from another angle of a horizontal injection molding device for rubber product production proposed by the present invention; Figure 10 This is a partially cross-sectional structural diagram of a horizontal injection molding device for rubber product production proposed by the present invention; Figure 11 The present invention proposes Figure 10The enlarged structural diagram of part C in the middle; Figure 12 The figure is a schematic diagram of the overall assembly structure of a horizontal injection molding device for rubber product production proposed by the present invention.

[0021] Legend: 1. Horizontal injection molding machine body; 2. Mold base; 3. First mold core; 4. Second mold core; 5. Ventilation base; 6. Ventilation assembly; 601. Ventilation cover; 602. Mobile barrier unit; 6021. Shift rod; 6022. Force wedge surface; 6023. Blocking block; 603. First barrier ring; 604. Closing spring; 605. Shielding cover; 606. Guide tube; 7. Adjustment assembly; 701. Control rod; 70 2. Brake block; 703. Telescopic rod; 704. Buffer spring; 705. Pressure rod; 706. Drive block; 707. Closing plate; 708. Blocking cone; 709. Guide cover; 710. Flow groove; 711. Sliding sleeve; 712. Sliding rod; 713. Return spring; 714. Second blocking ring; 8. Trigger rod; 9. Air path interface; 10. Suction seat; 11. Injection plastic tube; 12. Heat sink. 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. 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 any creative efforts shall fall within the scope of protection of the present invention.

[0023] See also Figures 1-12 The present invention provides a technical solution: a horizontal injection molding device for producing rubber products, comprising a horizontal injection molding machine body 1, with melt injection molding mechanisms on both sides of the horizontal injection molding machine body 1, wherein the melt injection molding mechanisms include corresponding screws, drive units, heating units, and feed control units. This part is a mature method and will not be elaborated on. There are two mold bases 2, each of which is connected to a corresponding melting mechanism. At least one mold base 2 is slidably connected to one side of the horizontal injection molding machine body 1, and the other mold base 2 is installed on one side of the horizontal injection molding machine body 1. The first mold core 3 and the second mold core 4 are respectively installed in the corresponding side mold base 2. The first mold core 3 and the second mold core 4 both have a mold cavity and a runner cavity. Different injection molding materials are injected through the first mold core 3 and the second mold core 4; Among them, in the field of similar technology, the mold core includes a cavity for accommodating the melt and forming the mold, and the side frame of the mold core supporting the cavity is called a mold frame. The mold core of this embodiment also has a corresponding ejector discharge part to realize the basic injection mold. This part is well known in the relevant field and is not limited thereto. Two ventilation seats 5 are installed in the empty grooves on both sides of the first mold core 3 that are connected to the mold cavity. The ventilation seats 5 are provided with ventilation components 6 that are connected to the runner cavity of the first mold core 3 through the ventilation components 6. The adjustment component 7 is installed in the ventilation seat 5 and contacts the ventilation component 6. The ventilation component 6 connects the cavity of the first mold core 3 with the runner cavity through the adjustment component 7. A trigger rod 8 is provided, and an electric push rod is installed on the rear side of the trigger rod 8. The electric push rod is installed in a hollow groove opened on the side of the second mold core 4 corresponding to the first mold core 3, and an air path interface 9 for negative pressure suction is provided in the hollow groove of the second mold core 4. After the second mold core 4 is in contact with the first mold core 3, a flow cavity is formed with the air exchange seat 5. The negative pressure suction causes the two streams of injection plastic in the cavity of the first mold core 3 and the second mold core 4 to be cast and mixed.

[0024] The electric push rod is a linear drive, and in another embodiment, a pneumatic or hydraulic drive component can also be used to achieve the movement of the trigger rod 8; It also includes: a plurality of concave cavities, arranged in an array in the cavity of the first core mold 3, and forming convex blocks by injection molding into the concave cavities; The injection plastic tube 11 is extended and arranged in the flow channel cavity of the first mold core 3 and the second mold core 4, and the discharge port of the injection plastic tube 11 in the first mold core 3 extends to the inner concave cavity at the corresponding position; The injection cavity is installed on the outside of the first mold core 3 and the second mold core 4 and is communicated with the corresponding injection plastic pipe 11. The injection cavity is connected to the discharge port of the melt injection mechanism of the horizontal injection molding machine.

[0025] When performing injection molding of rubber products such as rubber anti-skid mats, recycled materials can generally be used to mold the base mat material. This type of supporting component is not subject to strong pressure and has low physical performance requirements, so recycled materials can be used. Recycled materials can enhance production efficiency, but the raised part of the anti-skid mat is subject to greater pressure, so new materials are generally used for injection to maintain the anti-friction effect. However, during multi-component melt injection molding, the flow of the melt in the mold cavity depends on the rheological characteristics of the material itself. If the bonding degree is poor, it is easy for the raised bumps of the anti-skid mat to separate from the base mat material after being stressed, resulting in reduced durability. This embodiment of the present invention can solve the above problems, specifically: different raw materials are melted and mixed through the melt injection molding mechanisms on both sides, and the driving part of the horizontal injection molding machine body 1 drives the mold base 2 to slide and then drives the movable mold base 2 to move toward the fixed mold base 2 on the adjacent side. When the second mold core 4 contacts the first mold core 3, the trigger rod 8 can open the runner cavity by triggering the ventilation component 6. At this time, the external negative pressure suction device can suck the air in the cavity of the first mold core 3 through the air path interface 9. At this time, the melt injection molding mechanism can be respectively injected into the first mold core 3 and the second mold core 4. The two injected injection materials can be fully cast and mixed by negative pressure suction, thereby improving the coupling effect of the two injection materials after injection molding and improving the strength of the weld mark on the bonding surface. In addition, the simultaneous injection molding of the two materials can avoid the difference in interface crystallinity caused by heat dissipation of the injected materials, reduce the risk of interface delamination, and improve the casting effect of the molten material in the concave cavity by negative pressure suction, thereby improving the bonding strength with the injection material in the second mold core 4. Among them, the first mold core 3 and the second mold core 4 can be installed at the corresponding mold base 2 position according to process requirements. This embodiment does not limit them, and the movable mold base 2 can drive the molten injection molding mechanism to move with it or use an extended insulation material pipe. This part is a mature technology in the field and will not be elaborated on.

[0026] The driving part of the horizontal injection molding machine body 1 can be a corresponding linear drive module. This part is a well-known technology in the field and will not be elaborated on.

[0027] As an optional embodiment, please refer to FIG***, the ventilation component 6 includes: Multiple ventilation covers 601 are arrayed along the length direction of the ventilation seat 5 and arranged in a U-shape in the through holes opened on the side of the ventilation seat 5. The ventilation covers 601 on the corresponding sides extend through the through holes to the first mold core 3 cavity, the first mold core 3 flow channel cavity and the first mold core 3 film frame surface at the corresponding positions; The movable barrier unit 602 is movably and slidably connected to the ventilation cover 601 and closes the ventilation opening. The second mold core 4 and the first mold core 3 contact each other, so that the trigger rod 8 triggers the movable barrier unit 602 in the ventilation cover 601 to open the flow channel. The multiple movable barrier units 602 are configured as: multiple triggering parts driven by the trigger rod 8 and controlled parts driven by the adjustment component 7. After being driven by the triggering part, the adjustment component 7 drives the other two movable barrier units 602 as the controlled parts to open the flow channel for negative pressure suction. The first blocking ring 603 is connected to the front side of the ventilation cover 601, and the first blocking ring 603 and the movable blocking unit 602 are in close contact with each other to seal the flow channel of the ventilation cover 601; The ventilation component 6 also includes: The shielding cover 605 is connected to the opening on one side of the ventilation cover 601 away from the first blocking ring 603, and the shielding cover 605 has multiple ventilation ports; The closing spring 604 is connected to the outside of the movable barrier unit 602. One end of the closing spring 604 is connected to the inside of the shielding cover 605. The elastic force of the closing spring 604 allows the movable barrier unit 602 to fully fit the front first barrier ring 603. The guide pipe 606 is connected to the rear side of the shielding cover 605 located on the surface side of the film frame of the first mold core 3, so that the exhaust gas from the ventilation port of the shielding cover 605 on the opposite side can be accelerated and drawn out through the guide pipe 606.

[0028] The specific solution that this embodiment does not solve the above problem is as follows: before injection molding, the movable blocking unit 602 can close the ventilation seat 5 on the corresponding side to maintain the sealing effect inside the ventilation seat 5; when the second mold core 4 moves to contact the first mold core 3, the electric push rod can be synchronously controlled to extend to drive the trigger rod 8 to squeeze the blocking block 6023 on the corresponding side; the blocking block 6023 is pressed to separate from the first blocking ring 603 to open a suction gap; the movement of the blocking block 6023 can drive the shift rod 6021 and the rear side force wedge surface 6022 to squeeze the control rod 701; the brake block 702 on one side of the control rod 701 is pressed to move and drive the brake block 702 on the other side to separate from the other force wedge surface 6022; at this time, the shift rod 6021 on this side that is not pressed can pull the blocking block 6023 on the opposite side to move under the elastic force of the closing spring 604 to open the gap, thereby establishing suction communication between the inner cavity of the ventilation seat 5 and the cavity and runner cavity of the first mold core 3; By opening the flow channel between the cavity of the first mold core 3 and the runner cavity, negative pressure suction can synchronously suck the air in the runner cavity of the first mold core 3, so that the heat generated by the flow of the material in the runner cavity of the first mold core 3 is taken away by the negative pressure suction. By locally sucking and dissipating heat from the injection molding tube 11 in the runner cavity of the first mold core 3, it is possible to avoid the temperature of the melt in the injection molding tube 11 being too high and affecting the viscosity of the melt, thereby improving the injection molding effect of the multiple groups of concave cavities in the array and reducing the impact of local excessive temperature caused by shear heat of the melt flow; Furthermore, through the designed shielding hood 605 and guide tube 606, and by extending the guide tube 606 to the center position of the ventilation seat 5, the guide tube 606 can fully attract the gas entering from the opposite ventilation hood 601 and the adjacent suction seat 10, which is beneficial to improving the suction effect through the gathering of the shielding hood 605.

[0029] At the same time, the designed ventilation seat 5, when the ventilation seat 5 is arranged on the side of the cavity of the first mold core 3, is conducive to ventilation and suction of the cavity of the first mold core 3 through the proximal end of the ventilation seat 5, and the negative pressure suction effect is improved by the adjacent suction, thereby improving the casting suction effect of the injected melt; As an alternative, seeFigures 3-7 , the mobile blocking unit 602 includes: The shift rod 6021 is slidably connected to the shielding cover 605; The blocking block 6023 is connected to one end of the shift rod 6021. The shift rod 6021 slides within the shielding cover 605 to contact the blocking ring. The blocking block 6023 has a conical cross-section, and the inner cross-section of the blocking ring is also conical. One side of the blocking block 6023 is connected to one end of the closing spring 604. The elastic force of the closing spring 604 ensures that the blocking block 6023 and the blocking ring are tightly fitted. The force-bearing wedge surface 6022 is provided on the side of the shift rod 6021 away from the blocking block 6023. The contact between the force-bearing wedge block and the adjustment assembly 7 drives the opposite side to move the blocking unit 602 to open the flow channel. As an optional embodiment, the adjustment component 7 includes: The control rod 701 is slidably connected to the ventilation seat 5, and the control rod 701 contacts the corresponding shift rod 6021; The inner side of the force-bearing wedge surface 6022 of the shift rod 6021 is provided with a groove. After the force-bearing wedge surface 6022 contacts the brake block 702, it is sleeved on the outside of the control rod 701 through the groove. Multiple brake blocks 702 are arranged relative to each other along the length of the control rod 701. The brake blocks 702 are in contact with corresponding force-bearing wedge surfaces 6022. The flow channel is opened by moving the control rod 701 out of contact with the force-bearing wedge surfaces 6022. The suction seat 10 is connected to the side wall of the ventilation seat 5. The suction seat 10 extends to the inner side of the cavity of the first mold core 3. The suction seat 10 has multiple suction ports, and a second barrier ring 714 is provided in each suction port. The closing plate 707 is slidably connected to the ventilation seat 5. A plurality of blocking cone blocks 708 are arranged in an array on one side of the closing plate 707. After the blocking cone blocks 708 move, they close the second blocking ring 714.

[0030] As an alternative, see Figures 7-8 , the adjustment component 7 also includes: A plurality of driving blocks 706, each of the driving blocks 706 including an L-shaped fixing portion and a wedge-shaped portion, wherein the L-shaped fixing portion is connected to the bottom of the closing plate 707, and the wedge-shaped portion is connected to the bottom side of the L-shaped fixing portion; Multiple pressure rods 705 are arranged in an array along the length of the control rod 701. The L-shaped fixed portion has an opening. One end of the pressure rod 705 is inserted into the opening and contacts the inclined wedge surface of the wedge-shaped portion. When the control rod 701 moves, the pressure rod 705 is pushed to squeeze the wedge-shaped portion, causing the sealing plate 707 to open the flow channel. As an optional embodiment, the adjustment component 7 further includes: Telescopic rod 703, which includes a telescopic portion and a fixed portion. The telescopic portion is connected to one end of the control rod 701, and the fixed portion is connected to the ventilation seat 5 through a mounting member. A buffer spring 704, with both ends of the buffer spring 704 connected to corresponding positions of the fixing portion and one end of the control rod 701 respectively; A plurality of guide covers 709 are connected to both sides of the closing plate 707 corresponding to the blocking cone block 708, and the guide covers 709 are sleeved on the outside of the blocking cone block 708; Multiple flow slots 710 are arranged in a circumferential array on the inner side of the sealing plate corresponding to the guide cover 709, so that the negative pressure suction airflow can pass through the flow slots 710 and enter the ventilation seat 5. The designed guide cover 709 can guide and conduct the suction airflow, thereby improving the airflow extension effect; In order to prevent the melt from entering the flow cavity during negative pressure suction and affecting the suction effect, the closed type and dust isolation effect of the flow cavity before injection molding are maintained; When the locking cam 707 is in the closed position, the locking cam 708 is in the closed position, and the locking cam 708 is in the closed position, so that the locking cam 708 is in the closed position, and the locking cam 708 is in the closed position, so that the locking cam 708 is in the closed position, and the locking cam 708 is in the closed position, so that the locking cam 708 is in the closed position, and the locking cam 708 is in the closed position, so that the locking cam 708 is in the closed position, and the locking cam 708 is in the closed position, so that the locking cam 708 is in the closed position, and the locking cam 708 is in the closed position, so that the locking cam 708 is in the closed position, and the locking cam 708 is in the closed position, so that the locking cam 708 is in the closed position, The plurality of drive blocks 706 arranged in an array on the top of the closing plate 707 can cooperate with the pressure rod 705 to maintain the movement stability of the closing plate 707. The movement of the closing plate 707 outside the sliding rod 712 is more stable through the sliding sleeves 711 on both sides, which can prevent shaking and deviation, thereby improving the sealing effect. When the negative pressure suction reaches the designed time, that is, when the molten material is fully cast and is about to flow to the suction seat 10, the trigger rod 8 can be separated from the corresponding block 6023 by controlling the electric push rod. At this time, the non-pressurized buffer spring 704 can use its own elastic force to drive the telescopic rod 703 to extend and push the control rod 701 to reset. After the control rod 701 is reset, it can contact the pressure control of the closing plate 707. At this time, the reset spring 713 can use its own pulling to drive the closing plate 707 to reset to keep the blocking cone block 708 blocking the second blocking ring 714, thereby preventing the negative pressure suction flow channel from entering the molten material, avoiding excessive suction causing the material in the cavity of the first mold core 3 to overflow, and improving the negative pressure suction guidance effect.

[0031] As an optional embodiment, a plurality of heat sinks 12 are further included, which are arranged in an array along the axis direction of the injection molded plastic tube 11 . The heat sinks 12 are heat dissipation components.

[0032] The designed heat sink 12 can increase the heat exchange contact area when the runner cavity of the first mold core 3 is sucked, thereby maintaining the heat dissipation effect. The runner cavity of the first mold core 3 has an air inlet valve port, and the air inlet valve port is provided with a filter element to maintain the airflow balance of the runner cavity of the first mold core 3, avoiding the negative pressure suction vacuum affecting the heat dissipation effect, and the air inlet valve port is an electromagnetic pressure valve to ensure that during negative pressure suction, the air inlet valve port is opened after the pressure is reached, avoiding pressure relief affecting the negative pressure suction of the first mold core 3 cavity.

[0033] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0034] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A horizontal injection molding device for producing rubber products, comprising a horizontal injection molding machine body (1), both sides of which are provided with a melt injection molding mechanism, characterized in that: Also includes: A mold base (2), wherein the number of the mold bases (2) is two, the two mold bases (2) are respectively connected to corresponding melting mechanisms, at least one mold base (2) is slidably connected to one side of the horizontal injection molding machine body (1), and the other mold base (2) is installed on one side of the horizontal injection molding machine body (1); A first mold core (3) and a second mold core (4), the first mold core (3) and the second mold core (4) are respectively installed in corresponding side mold bases (2), the first mold core (3) and the second mold core (4) both have a mold cavity and a runner cavity, and different injection molding materials are injected through the first mold core (3) and the second mold core (4); Two ventilation seats (5), the two ventilation seats (5) are installed in the empty grooves on both sides of the first mold core (3) and connected to the mold cavity, wherein a ventilation component (6) is provided in the ventilation seat (5) and is connected to the flow channel cavity of the first mold core (3) through the ventilation component (6); An adjustment component (7) is installed in the ventilation seat (5) and contacts the ventilation component (6), and the ventilation component (6) connects the first core (3) cavity with the runner cavity through the adjustment component (7); A trigger rod (8) is provided, and an electric push rod is installed on the rear side of the trigger rod (8). The electric push rod is installed in a hollow groove opened on the side of the second mold core (4) corresponding to the first mold core (3), and an air path interface (9) for negative pressure suction is provided in the hollow groove of the second mold core (4). After the second mold core (4) and the first mold core (3) are in contact, a flow cavity is formed with the air exchange seat (5). The negative pressure suction causes the two injection plastics in the mold cavities of the first mold core (3) and the second mold core (4) to be cast and mixed.

2. A horizontal injection molding device for rubber product production according to claim 1, characterized in that: Also includes: A plurality of concave cavities are arranged in an array in the cavity of the first mold core (3), and convex blocks are formed by injection molding into the concave cavities; The injection plastic tube (11) is extended and arranged in the flow channel cavity of the first mold core (3) and the second mold core (4), and the discharge port of the injection plastic tube (11) in the first mold core (3) extends to the inner concave cavity at the corresponding position; The injection molding cavity is installed on the outside of the first mold core (3) and the second mold core (4) and is connected to the corresponding injection molding pipe (11). The injection molding cavity is connected to the discharge port of the melt injection molding mechanism of the horizontal injection molding machine.

3. A horizontal injection molding device for rubber product production according to claim 2, characterized in that: The ventilation component (6) comprises: A plurality of ventilation covers (601) are arrayed along the length direction of the ventilation seat (5) and arranged in a U-shape in the through holes opened on the peripheral side of the ventilation seat (5), and the corresponding side ventilation covers (601) extend through the through holes to the first mold core (3) cavity, the first mold core (3) flow channel cavity and the first mold core (3) film frame surface at corresponding positions; The movable barrier unit (602) is movably slidably connected to the ventilation cover (601) and closes the ventilation opening. The second mold core (4) and the first mold core (3) are engaged with each other to enable the trigger rod (8) to trigger the movable barrier unit (602) in the ventilation cover (601) to open the flow cavity. The plurality of movable barrier units (602) are configured as: a plurality of triggering parts driven by the trigger rod (8) and a controlled part driven by the adjustment component (7). After being driven by the triggering part, the adjustment component (7) drives the movable barrier units (602) on the other two sides as the controlled parts to open the flow cavity for negative pressure suction. The first blocking ring (603) is connected to the front side of the ventilation hood (601), and the flow channel of the ventilation hood (601) is sealed by the first blocking ring (603) and the movable blocking unit (602).

4. A horizontal injection molding device for rubber product production according to claim 3, characterized in that: The ventilation component (6) further includes: The shielding cover (605) is connected to an opening on one side of the ventilation cover (601) away from the first blocking ring (603), and the shielding cover (605) has a plurality of ventilation openings; A closing spring (604), the closing spring (604) is connected to the outside of the movable barrier unit (602), one end of the closing spring (604) is connected to the inside of the shielding cover (605), and the elastic force of the closing spring (604) enables the movable barrier unit (602) to fully fit the front first barrier ring (603); The guide tube (606) is connected to the rear side of the shielding cover (605) located on the surface side of the film frame of the first mold core (3), so that the exhaust gas from the ventilation port of the shielding cover (605) on the opposite side is accelerated and drawn out through the guide tube (606).

5. A horizontal injection molding device for rubber product production according to claim 4, characterized in that: The mobile blocking unit (602) comprises: A shift rod (6021) is slidably connected to the shielding cover (605); The blocking block (6023) is connected to one end of the shift rod (6021) and contacts the blocking ring through the sliding of the shift rod (6021) in the shielding cover (605). The cross-section of the blocking block (6023) is conical, and the inner cross-section of the blocking ring is conical. One side of the blocking block (6023) is connected to one end of the closing spring (604). The elastic force of the closing spring (604) makes the blocking block (6023) and the blocking ring fit tightly together. The force-bearing wedge surface (6022) is provided on the side of the shift rod (6021) away from the blocking block (6023), and drives the opposite side moving blocking unit (602) to open the flow channel through the contact between the force-bearing wedge block and the adjustment component (7).

6. A horizontal injection molding device for rubber product production according to claim 3, characterized in that: The adjustment component (7) comprises: A control rod (701) is slidably connected to the ventilation seat (5), and the control rod (701) is in contact with a corresponding shift rod (6021); A plurality of brake blocks (702), the brake blocks (702) being arranged relative to each other along the length direction of the control rod (701), and the brake blocks (702) being in contact with corresponding force-bearing wedge surfaces (6022), and the flow channel being opened by moving the control rod (701) out of contact with the force-bearing wedge surfaces (6022); A suction seat (10) is connected to the side wall of the ventilation seat (5), the suction seat (10) extending to the inner side of the cavity of the first mold core (3), the suction seat (10) having a plurality of suction ports, and a second barrier ring (714) is provided in the suction port; The closing plate (707) is slidably connected to the ventilation seat (5), and a plurality of blocking cone blocks (708) are arranged in an array on one side of the closing plate (707). The blocking cone blocks (708) are moved to close the second blocking ring (714).

7. A horizontal injection molding device for rubber product production according to claim 6, characterized in that: The adjustment component (7) further comprises: Slide sleeves (711) are provided on both sides of the closing plate (707), and a slide rod (712) is slidably connected in the slide sleeves (711), and the slide rod (712) is connected to the inner cavity of the ventilation seat (5); The return spring (713) is sleeved on the outside of the slide rod (712), and the two ends of the return spring (713) are respectively connected to the end of the slide rod (712) and the opposite surface of the slide sleeve (711).

8. The horizontal injection molding device for rubber product production according to claim 6, characterized in that: The adjustment component (7) further comprises: A plurality of driving blocks (706), the driving blocks (706) comprising an L-shaped fixing portion and a wedge-shaped portion, the L-shaped fixing portion being connected to the bottom of the closing plate (707), and the wedge-shaped portion being connected to the bottom side of the L-shaped fixing portion; A plurality of pressure rods (705) are arranged in an array along the length direction of the control rod (701); the L-shaped fixing portion has an opening; one end of the pressure rod (705) is passed through the opening and contacts the inclined wedge surface of the wedge-shaped portion; the control rod (701) moves to push the pressure rod (705) to squeeze the wedge-shaped portion so that the closing plate (707) opens the flow channel.

9. The horizontal injection molding device for rubber product production according to claim 1, characterized in that: The adjustment component (7) further comprises: A telescopic rod (703), the telescopic rod (703) comprises a telescopic portion and a fixed portion, the telescopic portion is connected to one end of the control rod (701), and the fixed portion is connected to the ventilation seat (5) via a mounting member; A buffer spring (704), with both ends of the buffer spring (704) connected to corresponding positions of the fixing portion and one end of the control rod (701); A plurality of guide covers (709), the plurality of guide covers (709) are connected to the two sides of the closing plate (707) corresponding to the blocking cone block (708), and the guide covers (709) are sleeved on the outside of the blocking cone block (708); A plurality of circulation slots (710) are arranged in a circumferential array on the inner side of the sealing plate corresponding to the guide cover (709), so as to allow negative pressure suction airflow to pass through the circulation slots (710) and enter the ventilation seat (5).

10. The horizontal injection molding device for rubber product production according to claim 1, characterized in that: It also includes a plurality of heat sinks (12), which are arranged in an array along the axis direction of the injection molded plastic tube (11), and the heat sinks (12) are heat dissipation components.

Images