Injection molding device for glass sealing strip processing

Abstract

The invention discloses an injection molding device for glass sealing strip processing, which comprises a fixed frame, an upper mold and a lower mold located in the fixed frame, and a moving mechanism for pulling a skeleton to translate, the bottom surface of the upper mold is provided with a mold groove matched with the skeleton, and the top surface of the lower mold is fixedly provided with a mold core matched with the skeleton. Upper sealing pieces are fixed to the groove walls of the two ends of the mold cavity, lower sealing pieces are fixed to the two ends of the mold core, a sprue is formed in the top wall of one side of the upper mold and communicates with two runners, and the bottom ends of the runners communicate with the mold cavity; a first clamping strip and a first clamping block which move vertically are arranged in the movable frame, and an upper heating table and a lower heating table which are used for heating a framework are further arranged on one side of the upper die and one side of the lower die. According to the invention, the continuous feeding and continuous injection molding blanking of the metal framework can be realized, the production process is shortened, the production efficiency is greatly improved, and the large-scale continuous production requirement is met.

Description

Technical Field

[0001] This invention relates to the field of glass sealing strip processing technology, and more specifically, to an injection molding device for glass sealing strip processing. Background Technology

[0002] Glass sealing strips are widely used in automotive windows, building doors and windows, and other glass assembly structures. They are typically installed between the glass and the mounting frame to provide functions such as sealing, waterproofing, windproofing, noise reduction, and cushioning. For glass sealing strips that require high installation precision, complex stress conditions, or need to maintain a certain structural shape, an internal metal frame or other reinforcing frame is often required to improve the product's support performance, assembly stability, and reliability.

[0003] Existing glass sealing strips are typically manufactured using extrusion molding and injection molding. For sealing strips with relatively regular cross-sectional structures suitable for continuous molding, extrusion is often used. However, for glass sealing strips with more complex local structures, higher requirements for overmolding, and especially those with internal skeletons, injection molding is usually employed. In the injection molding process of such skeleton-equipped glass sealing strips, the skeleton is generally heated or pre-treated before being placed in the mold cavity. This is followed by mold closing, glue injection, cooling, mold opening, and part removal / unloading.

[0004] In the aforementioned processing, the loading, transfer, positioning, injection molding, and unloading of the skeleton are typically carried out in steps, with weak connections between each process. Manual placement and removal are often still relied upon, making it difficult to achieve continuous feeding, injection molding, and unloading. This results in a long single molding cycle and a slow overall production pace, making it unsuitable for mass production and continuous operation. Furthermore, the skeleton needs to maintain a relatively accurate position when placed into the mold cavity. If manual positioning or simple clamping methods are used, the skeleton is prone to positional deviation, incorrect posture, or localized deformation under pressure. This leads to skew during subsequent mold closing and glue injection, resulting in uneven glue thickness, reduced dimensional accuracy of the product, and affecting the final product's appearance quality and assembly performance.

[0005] In addition, the skeleton typically needs to be heated before injection molding to meet the process requirements of surface adhesive activation and reliable bonding between the plastic material and the skeleton. However, in existing operations, there is often a certain exposure and waiting time during the transfer of the skeleton from the heating position to the mold cavity, which can easily lead to a rapid drop in skeleton temperature. This affects the activation state of the adhesive, resulting in weak bonding between the plastic material and the skeleton, local delamination or detachment, and further affecting the molding quality and service life of the product. Furthermore, the existing equipment is usually not smooth enough in the demolding and unloading stages, which is not conducive to further shortening the processing cycle and improving overall processing efficiency.

[0006] Therefore, there is an urgent need to provide an injection molding device for processing glass sealing strips, so as to take into account the preheating of the skeleton, stable clamping, precise feeding, continuous injection and efficient unloading during the processing of glass sealing strips with skeletons, thereby improving the problems of insufficient operation continuity, unstable skeleton positioning, poor temperature holding effect and low demolding and unloading efficiency in the existing technology. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0008] Therefore, the object of the present invention is to provide an injection molding device for processing glass sealing strips, including a fixed frame, an upper mold and a lower mold located within the fixed frame, and a moving mechanism for pulling the skeleton to translate.

[0009] Multiple first guide pillars are passed through the upper mold and the lower mold. The bottom surface of the upper mold is provided with a mold groove that matches the skeleton. The top surface of the lower mold is fixed with a mold core that matches the skeleton. Upper sealing plates are fixed on the groove walls at both ends of the mold groove, and lower sealing plates are fixed on both ends of the mold core.

[0010] The upper mold has a gate on one side of the top wall, which is connected to two runners, and the bottom of the runners is connected to the mold groove.

[0011] The moving mechanism includes a horizontally movable frame, within which a vertically movable first clamping bar and a first clamping block are provided.

[0012] The upper and lower molds are also equipped with an upper heating platform and a lower heating platform on one side for heating the frame.

[0013] The upper heating platform is provided with a vertically movable second clamping bar on the side near the movable frame, and the lower heating platform is provided with a vertically movable second clamping block on the side near the movable frame.

[0014] As a preferred technical solution:

[0015] As described above, in an injection molding device for processing glass sealing strips, the cross-section of the skeleton is "U"-shaped, both the first clamping strip and the second clamping strip are "U"-shaped, and the tops of the first clamping block and the second clamping block are arc-shaped.

[0016] Both the upper and lower sealing plates are U-shaped.

[0017] The above technical solution, through the shape design of the clamping strip and clamping block, allows the frame to be clamped and fixed when the clamping strip and clamping block come together, making it easier to pull the frame to move laterally.

[0018] As described above, in an injection molding device for processing glass sealing strips, two flow channels are symmetrically distributed, the flow channels are designed at an angle, and the axis of the flow channels is tangent to the wall of the mold groove.

[0019] With the above technical solution, the flow channel is designed tangentially along the arc surface of the mold groove. This way, the direction of the material discharge fits the cavity, and after injection, it flows tightly against the outer wall of the cavity immediately, instead of directly rushing towards the skeleton. This way, the impact force of the material during injection will not act on the skeleton, avoiding skeleton skewing and improving the quality of subsequent products.

[0020] As described above, in an injection molding device for processing glass sealing strips, the lower heating platform is fixed to a fixed frame, and a plurality of second guide posts are bolted to the top surface of the lower heating platform. The top ends of the second guide posts penetrate the upper heating platform and are bolted to the fixed frame.

[0021] Both ends of the first guide post are bolted to the fixed frame.

[0022] Through the above technical solution, the upper heating platform can move vertically along the second guide post, which facilitates the placement of the skeleton. The first guide post is fixed as a whole, which improves the movement accuracy of the upper and lower molds and ensures that the upper and lower molds can be stably closed and opened.

[0023] As described above, in an injection molding device for processing glass sealing strips, the bottom surface of the upper heating platform is provided with a groove adapted to the frame, and the top surface of the lower heating platform is bolted with a heating protrusion adapted to the frame.

[0024] The heating protrusion is hollow inside, and a spiral heating wire is installed inside the heating protrusion.

[0025] With the above technical solution, when the upper heating platform moves to fit the lower heating platform, the groove and the heating protrusion can clamp and wrap the frame 4, ensuring that the frame 4 can fit tightly with the heating protrusion. In this way, the heat on the heating protrusion can be transferred to the frame 4, improving the heating effect of the frame 4.

[0026] As described above, an injection molding device for processing glass sealing strips has a first cavity and a second cavity respectively opened inside the upper heating platform and the lower heating platform. The upper heating platform has a first through groove connected to the first cavity on the side near the movable frame, and the lower heating platform has a second through groove connected to the second cavity on the side near the movable frame. A linear drive mechanism is provided inside both the first cavity and the second cavity.

[0027] The top surface of the second clamping bar is welded with a first lifting bar, and the bottom surface of the second clamping block is welded with a second lifting bar. One end of the first lifting bar passes through the first through groove and extends into the first cavity, and one end of the second lifting bar passes through the second through groove and extends into the second cavity.

[0028] The linear drive mechanism includes a third lead screw and a set of second guide rods. The third lead screw passes through and is threadedly connected to the first and second lifting bars, and the second guide rods pass through and are slidably connected to the first and second lifting bars.

[0029] With the above technical solution, the third lead screw is fixed inside the upper heating platform and the lower heating platform by means of bearing connection, and the second guide rod is fixed inside the upper heating platform and the lower heating platform by means of bolts or welding. In this way, when the third lead screw rotates, it can stably drive the first lifting bar and the second lifting bar to move vertically along the second guide rod.

[0030] As described above, in an injection molding device for processing glass sealing strips, a guide groove is provided on the side of the upper heating platform near the movable frame, and a cutter is slidably disposed in the guide groove.

[0031] With the above technical solution, the cutter moves along the width of the upper heating platform. After injection molding is completed, the cutter can cut the skeleton, and the cut sealing strip is unloaded. The subsequent skeleton can be pulled out for injection molding, thus realizing continuous operation.

[0032] As described above, in an injection molding device for processing glass sealing strips, a movable plate is welded and fixed to one side of the movable frame. A set of first guide rods slidably connected to the movable plate passes through it. A first screw threadedly connected to the movable plate passes through the center of the movable plate. The two ends of the first guide rods are welded and fixed to a fixed frame and a boss, respectively. The two ends of the first screw thread are respectively connected to bearings of the fixed frame and the boss. The boss is integrally formed with the lower heating platform.

[0033] The outer walls on both sides of the first clamping bar extend horizontally outward to form a first protrusion, and the outer walls on both sides of the first clamping bar extend horizontally outward to form a second protrusion. A second lead screw passes through the first and second protrusions, and the end faces of the first and second protrusions are slidably connected to the inner wall of the movable frame.

[0034] The two ends of the second lead screw are connected to the bearings of the movable frame wall. The second lead screw has a double thread structure, and the first and second protrusions are screwed into the second lead screw in opposite directions.

[0035] With the above technical solution, the second lead screw is designed with a double thread, one end is a left-hand thread and the other end is a right-hand thread. The two threads have the same pitch. When the second lead screw rotates, the threads at both ends will drive the first and second protrusions that are engaged with it to move, and the first and second protrusions will move closer to each other or further away from each other.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] (1) The present invention integrates an upper heating platform, a lower heating platform, a moving mechanism, upper and lower molds and a cutting structure on a fixed frame, so that the skeleton can complete preheating, clamping, translation feeding, mold closing injection, mold opening demolding and cutting and unloading in sequence, and enter the next cycle after resetting. In this way, the original scattered feeding, positioning, injection and unloading processes are connected into a continuous operation process, reducing manual intervention and intermediate stops, solving the problem of difficult continuous production and slow production cycle in the injection molding process of glass sealing strips with skeleton, and has the effect of high production efficiency and suitable for batch continuous manufacturing.

[0038] (2) The present invention uses the first clamping strip and the first clamping block to clamp and feed the skeleton. With the guide and mold closing structure of the upper and lower molds and the limiting and sealing effect of the upper and lower sealing plates on both ends of the skeleton, the skeleton is in a controlled positioning state before entering the cavity. At the same time, the two symmetrically arranged flow channels that are tangent to the mold groove wall allow the molten rubber to adhere to the wall of the cavity and fill synchronously, reducing the front impact of the rubber flow on the skeleton, thereby suppressing skeleton skewing, extrusion deformation and rubber coating eccentricity. This solves the problems of inaccurate skeleton positioning, uneven rubber layer thickness and poor product size consistency in the prior art, which is conducive to improving the stability of injection molding and product yield.

[0039] (3) The present invention uses the groove of the upper heating platform and the heating protrusion of the lower heating platform to cover the skeleton for heating. After the skeleton reaches the set temperature, it is directly clamped and sent into the mold area by the moving mechanism, which shortens the exposure time of the skeleton from heating to injection molding. This helps to maintain the activated state of the adhesive on the skeleton surface and improve the bonding strength between the colloid and the skeleton. At the same time, after injection molding, both ends of the skeleton are still in the clamping control state. The product can be smoothly released with the mold opening action and cut off with the cooperation of the second clamping strip and the second clamping block. This further solves the problems of poor bonding, low demolding efficiency and unsmooth material feeding caused by the rapid cooling of the skeleton in the prior art, thereby improving both the bonding quality of the product and the efficiency of a single operation. Attached Figure Description

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is an overall front view of the present invention;

[0042] Figure 2 This is an overall perspective view of the present invention;

[0043] Figure 3 This is an overall perspective view of the present invention in its mold-closed state;

[0044] Figure 4 This is a perspective view of the upper mold, lower mold, and skeleton of the present invention;

[0045] Figure 5 This is a perspective view of the upper heating platform, lower heating platform, and movable frame of the present invention;

[0046] Figure 6 This is a side view of the upper heating platform, lower heating platform, and movable frame of the present invention;

[0047] Figure 7 This is a perspective view of the upper and lower molds of the present invention when they are closed.

[0048] Figure 8 This is a perspective view of the upper and lower molds of the present invention when they are closed.

[0049] Figure 9 This is a perspective view of the interior of the upper heating platform and the lower heating platform of the present invention;

[0050] Figure 10 This is a three-dimensional cross-sectional view of the upper mold and runner of the present invention.

[0051] In the diagram: 1. Fixed frame; 2. Upper mold; 3. Lower mold; 4. Skeleton; 5. Mold core; 6. Mold groove; 7. Upper sealing plate; 8. Lower sealing plate; 9. Gate; 10. Runner; 11. First guide post; 12. Upper heating platform; 13. Lower heating platform; 14. Groove; 15. Heating protrusion; 16. Second guide post; 17. Movable plate; 18. First lead screw; 19. First guide rod; 20. Movable frame; 21. First clamping bar; 22. First clamping block; 23. First protrusion; 24. Second protrusion; 25. Second lead screw; 26. Second clamping bar; 27. Second clamping block; 28. First cavity; 29. ​​First through groove; 30. Second cavity; 31. Second through groove; 32. First lifting bar; 33. Second lifting bar; 34. Third lead screw; 35. Second guide rod; 36. Boss; 37. Cutting blade. Detailed Implementation

[0052] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0053] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0054] like Figures 1-10 As shown, this embodiment of the invention discloses an injection molding device for processing glass sealing strips, including a fixed frame 1, an upper mold 2 and a lower mold 3 located within the fixed frame 1, a moving mechanism for pulling the skeleton 4 to translate, and a heating mechanism for heating the skeleton 4.

[0055] Multiple first guide pillars 11 are passed through the upper mold 2 and the lower mold 3. The bottom surface of the upper mold 2 is provided with a mold groove 6 that is compatible with the skeleton 4. The top surface of the lower mold 3 is fixed with a mold core 5 that is compatible with the skeleton 4. Upper sealing plates 7 are fixed on the groove walls at both ends of the mold groove 6, and lower sealing plates 8 are fixed on both ends of the mold core 5.

[0056] A gate 9 is provided on one side of the top wall of the upper mold 2. The gate 9 is connected to two runners 10. The bottom end of the runners 10 is connected to the mold groove 6.

[0057] The moving mechanism includes a horizontally movable frame 20, within which a vertically movable first clamping bar 21 and a first clamping block 22 are provided.

[0058] The upper mold 2 and the lower mold 3 are also provided with an upper heating platform 12 and a lower heating platform 13 for heating the frame 4.

[0059] The upper heating platform 12 is provided with a vertically movable second clamping bar 26 on the side near the movable frame 20, and the lower heating platform 13 is provided with a vertically movable second clamping block 27 on the side near the movable frame 20.

[0060] A guide groove is provided on the side of the upper heating platform 12 near the movable frame 20, and a cutter 37 is slidably arranged in the guide groove.

[0061] Specifically, during implementation, after applying adhesive to the surface of the frame 4, the frame 4 is placed on the heating protrusion 15 on the lower heating platform 13, with one end of the frame 4 extending beyond the end face of the heating protrusion 15, so that the moving mechanism can clamp the end face of the frame 4.

[0062] Hydraulic cylinders are provided on both sides of the lower heating platform 13. The piston rod end of the hydraulic cylinder is bolted to the bottom surface of the upper heating platform 12. After the hydraulic cylinder works, it can push the upper heating platform 12 to move vertically back and forth along the second guide column 16. When the upper heating platform 12 moves to fit with the lower heating platform 13, the groove 14 on the upper heating platform 12, together with the heating protrusion 15, can wrap and fit the skeleton 4. The heating protrusion 15 is used to heat the skeleton 4. When the skeleton 4 is heated to a certain temperature, the first clamping bar 21 and the first clamping block 22 move closer to each other and clamp the skeleton 4. At this time, the movable frame 20 moves horizontally, and the skeleton 4 can be pulled between the upper mold 2 and the lower mold 3 by the first clamping bar 21 and the first clamping block 22.

[0063] The fixed frame 1 is equipped with a power device, such as a hydraulic cylinder or an electric push rod, for pushing the upper mold 2 and the lower mold 3 to move vertically. This is used to drive the upper mold 2 and the lower mold 3 to move vertically to close and open the mold. When the mold is closed, the mold groove 6 and the mold core 5 will surround and form a cavity to enclose the skeleton 4. At the same time, the closed hole formed between the upper sealing plate 7 and the lower sealing plate 8 will clamp and seal the two ends of the skeleton 4.

[0064] Molten rubber is injected through gate 9 and split into the cavity through two runners 10. In this way, the rubber gradually fills the entire cavity and wraps the skeleton 4. Finally, a rubber layer is formed on the surface of the skeleton 4. After injection molding, the upper mold 2 and the lower mold 3 are opened. The two ends of the skeleton 4 are clamped and cannot move with the upper mold 2 and the lower mold 3. The sealing strip after injection molding can automatically separate from the upper mold 2 and the lower mold 3. No manual or robotic arm is required to demold and remove the parts, realizing a fast and stable automatic demolding operation.

[0065] Next, the second clamping bar 26 and the second clamping block 27 come together to clamp the skeleton 4. The upper heating table 12 is equipped with a power device, such as a hydraulic cylinder or an electric push rod, to push the cutter 37 to move laterally. By pushing the cutter 37 to move and cut the skeleton 4, the cut sealing strip will fall down automatically and can be transferred to the next process by the staff.

[0066] Since the cut point of the skeleton 4 is clamped during cutting, the cut can be kept straight and undeformed. When the movable frame 20 moves and resets again, the skeleton 4 can be accurately clamped again by the first clamping bar 21 and the first clamping block 22 and the skeleton 4 can be pulled to move horizontally. By repeating the above steps, continuous feeding and continuous injection molding operations can be achieved.

[0067] In one specific embodiment of the present invention, the cross-section of the skeleton 4 is U-shaped, the first clamping bar 21 and the second clamping bar 26 are both U-shaped, the top ends of the first clamping block 22 and the second clamping block 27 are arc-shaped, and the upper sealing plate 7 and the lower sealing plate 8 are both U-shaped.

[0068] Specifically, such as Figure 4 and Figure 6 As shown, the shape design of the upper sealing plate 7 and the lower sealing plate 8 ensures that after the mold is closed, a cavity is formed between the mold core 5 and the mold groove 6, which encloses the skeleton 4. At this time, a closed hole is formed between the upper sealing plate 7 and the lower sealing plate 8, which perfectly covers the skeleton 4. The closed hole is sealed and fits tightly against the outer wall of the skeleton 4, thereby sealing both ends of the cavity. This prevents the glue from overflowing when the glue is injected. The upper sealing plate 7 and the lower sealing plate 8 are made of mold steel to prevent deformation and damage under the pressure of glue injection, thus improving the overall sealing effect.

[0069] The closed hole at the right end of the cavity is sealed and fitted with the skeleton 4, while there is a 0.5mm gap between the closed hole at the left end of the cavity and the skeleton 4. Since the gate 9 is located at the right end of the cavity, the plastic material flows from the right end of the cavity to the left end. During the flow, the air in the cavity can be gradually pushed to the left end and finally squeezed out through the gap to complete the venting, thereby improving the quality of the injection molded product.

[0070] In one specific embodiment of the present invention, two flow channels 10 are symmetrically distributed, the flow channels 10 are designed at an angle, and the axis of the flow channel 10 is tangent to the groove wall of the mold groove 6.

[0071] Specifically, such as Figure 4 , Figure 7 and Figure 10 As shown, the two flow channels 10 are symmetrically distributed. The length, diameter, tangential angle, and outlet size of the flow channels 10 are completely consistent, ensuring that the flow rate, pressure, and filling progress of the two rubber materials are completely synchronized. The rubber material forms a uniform wall-adhering material flow along the annular contour of the cavity, first filling the rubber layer space on the outside of the cavity, and then uniformly wrapping the skeleton 4 from the outside to the inside with a stable melt without impact. This improves the filling synchronization of each position of the U-shaped cross section of the skeleton 4 and avoids the problems of missing glue on one side and shrinkage marks.

[0072] Furthermore, the feed point is located precisely in the anchor point area where the skeleton 4 is rigidly clamped by the upper sealing plate 7 and the lower sealing plate 8. Even if there is a very small amount of residual stress, it will be completely offset by the clamping force of the sealing plate, thus further improving the anti-skewing effect.

[0073] In one specific embodiment of the present invention, the lower heating platform 13 is fixed to the fixed frame 1, and a plurality of second guide posts 16 are bolted to the top surface of the lower heating platform 13. The top ends of the second guide posts 16 penetrate the upper heating platform 12 and are bolted to the fixed frame 1. Both ends of the first guide post 11 are bolted to the fixed frame 1.

[0074] Specifically, such as Figure 1 and Figure 2 As shown, the first guide post 11 and the second guide post 16 are both vertically arranged and distributed in a rectangular shape to improve the movement accuracy of the upper heating platform 12, the upper mold 2 and the lower mold 3.

[0075] In one specific embodiment of the present invention, the bottom surface of the upper heating platform 12 is provided with a groove 14 that is adapted to the frame 4, and the top surface of the lower heating platform 13 is bolted with a heating protrusion 15 that is adapted to the frame 4. The heating protrusion 15 is hollow inside and a spiral heating wire is provided inside the heating protrusion 15.

[0076] Specifically, such as Figure 5 and Figure 9 As shown, after the upper heating platform 12 and the lower heating platform 13 come into contact, a U-shaped groove that matches the size of the frame 4 can be formed between the groove 14 and the heating protrusion 15. In this way, the frame 4 can fully fit with the heating protrusion 15, thereby improving the heating effect.

[0077] The heating ridge 15 is made of mold steel. After the heating wire is powered on, it can conduct heat to the heating ridge 15, which in turn conducts heat to the frame 4, thereby achieving heating.

[0078] The surfaces of the groove 14 and the heating protrusion 15 are coated with polytetrafluoroethylene, which reduces friction when the skeleton 4 is pulled, thus avoiding damage to the adhesive on the surface of the skeleton 4.

[0079] In one specific embodiment of the present invention, a first cavity 28 and a second cavity 30 are respectively provided inside the upper heating platform 12 and the lower heating platform 13. A first through groove 29 communicating with the first cavity 28 is provided on the side of the upper heating platform 12 near the movable frame 20, and a second through groove 31 communicating with the second cavity 30 is provided on the side of the lower heating platform 13 near the movable frame 20. A linear drive mechanism is provided inside both the first cavity 28 and the second cavity 30.

[0080] The top surface of the second clamping bar 26 is welded with the first lifting bar 32, and the bottom surface of the second clamping block 27 is welded with the second lifting bar 33. One end of the first lifting bar 32 passes through the first through groove 29 and extends into the first cavity 28, and one end of the second lifting bar 33 passes through the second through groove 31 and extends into the second cavity 30.

[0081] The linear drive mechanism includes a third lead screw 34 and a set of second guide rods 35. The third lead screw 34 passes through the first lifting bar 32 and the second lifting bar 33 and is threadedly connected. The second guide rods 35 pass through the first lifting bar 32 and the second lifting bar 33 and are slidably connected.

[0082] Specifically, such as Figure 5 , Figure 6 and Figure 9 As shown, the linear drive mechanism also includes a servo motor that is connected to the third lead screw 34. When the injection molding is completed and the skeleton 4 needs to be cut, the servo motor drives the third lead screw 34 to rotate axially. Under the push of the third lead screw 34, the first lifting bar 32 and the second lifting bar 33 will move vertically downward along the second guide rod 35. When the first lifting bar 32 moves in the first through groove 29, it will synchronously drive the second clamping bar 26 to move.

[0083] The second lifting bar 33 will move vertically upward along the second guide rod 35. When the second lifting bar 33 moves in the second through groove 31, it will drive the second clamping block 27 to move synchronously. In this way, the second clamping bar 26 and the second clamping block 27 can come close to each other and clamp the skeleton 4. This ensures that the cut of the skeleton 4 is flat and does not deform when cutting.

[0084] When the frame 4 needs to be pulled again for injection molding, the servo motor drives the third lead screw 34 to rotate in the opposite direction. This causes the first lifting bar 32 to drive the second clamping bar 26 to reset, and the second lifting bar 33 to drive the second clamping block 27 to reset, thus avoiding obstructing the movement of the movable frame 20.

[0085] In one specific embodiment of the present invention, a movable plate 17 is welded and fixed to one side of the movable frame 20. A set of first guide rods 19 slidably connected to the movable plate 17 passes through it. A first screw rod 18 threadedly connected to the movable plate 17 passes through the center of the movable plate 17. The two ends of the first guide rod 19 are welded and fixed to the fixed frame 1 and the boss 36 respectively. The two ends of the first screw rod 18 are respectively connected to the fixed frame 1 and the boss 36 bearings. The boss 36 is integrally formed with the lower heating platform 13.

[0086] The outer walls of the first clamping bar 21 extend horizontally outward to form a first protrusion 23, and the outer walls of the first clamping block 22 extend horizontally outward to form a second protrusion 24. A second lead screw 25 passes through the first protrusion 23 and the second protrusion 24, and the end faces of the first protrusion 23 and the second protrusion 24 are slidably connected to the inner wall of the movable frame 20.

[0087] The two ends of the second lead screw 25 are connected to the bearings of the wall of the movable frame 20. The second lead screw 25 has a double thread structure, and the threads of the first protrusion 23 and the second protrusion 24 that engage with the second lead screw 25 have opposite directions of rotation.

[0088] Specifically, such as Figure 2 , Figure 6 and Figure 8 As shown, when the movable frame 20 is equipped with a small servo motor, one of the second lead screws 25 is connected to the output end of the small servo motor, and the two second lead screws 25 are connected through chain drive, so that the two second lead screws 25 can rotate synchronously under the drive of the motor.

[0089] When the skeleton 4 needs to be moved horizontally for injection molding, the two second lead screws 25 drive the two first protrusions 23 downward and drive the two second protrusions 24 upward. In this way, the first clamping bar 21 moves downward synchronously and the first clamping block 22 moves upward synchronously. The first clamping bar 21 and the first clamping block 22 move closer to each other to complete the clamping operation of the skeleton 4.

[0090] When the frame 4 needs to be moved horizontally, the movable frame 20 is equipped with a servo motor for driving the first lead screw 18. When the first lead screw 18 rotates, it can push the movable plate 17 to move linearly along the first guide rod 19. The movable plate 17 can drive the movable frame 20 to move synchronously. The movable frame 20 pulls the frame 4 to move synchronously through the first clamping bar 21 and the first clamping block 22.

[0091] In the description of this specification, terms such as "connection," "installation," and "fixation" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms within this invention based on the specific circumstances.

[0092] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0093] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An injection molding device for processing glass sealing strips, comprising a fixed frame (1), an upper mold (2) and a lower mold (3) located within the fixed frame (1), and a moving mechanism for translating the frame (4). Its features are: Multiple first guide posts (11) are passed through the upper mold (2) and the lower mold (3). The bottom surface of the upper mold (2) is provided with a mold groove (6) that is adapted to the skeleton (4). The top surface of the lower mold (3) is fixed with a mold core (5) that is adapted to the skeleton (4). The upper sealing plate (7) is fixed on the groove wall at both ends of the mold groove (6). The lower sealing plate (8) is fixed on both ends of the mold core (5). The upper mold (2) has a gate (9) on one side of the top wall. The gate (9) is connected to two runners (10). The bottom end of the runners (10) is connected to the mold groove (6). The moving mechanism includes a horizontally movable frame (20), and the movable frame (20) is provided with a vertically movable first clamping bar (21) and a first clamping block (22). The upper mold (2) and the lower mold (3) are also provided with an upper heating platform (12) and a lower heating platform (13) for heating the frame (4) on one side. The upper heating platform (12) is provided with a vertically movable second clamping bar (26) on the side near the movable frame (20), and the lower heating platform (13) is provided with a vertically movable second clamping block (27) on the side near the movable frame (20).

2. The injection molding device for processing glass sealing strips according to claim 1, characterized in that: The cross-section of the skeleton (4) is U-shaped, the first clamping bar (21) and the second clamping bar (26) are both U-shaped, and the tops of the first clamping block (22) and the second clamping block (27) are arc-shaped. Both the upper sealing sheet (7) and the lower sealing sheet (8) are U-shaped.

3. The injection molding device for processing glass sealing strips according to claim 1, characterized in that: The two flow channels (10) are symmetrically distributed, the flow channels (10) are designed at an angle, and the axis of the flow channel (10) is tangent to the groove wall of the mold groove (6).

4. The injection molding device for processing glass sealing strips according to claim 1, characterized in that: The lower heating platform (13) is fixed to the fixed frame (1). Multiple second guide posts (16) are bolted to the top surface of the lower heating platform (13). The top ends of the second guide posts (16) penetrate the upper heating platform (12) and are bolted to the fixed frame (1). Both ends of the first guide post (11) are bolted to the fixed frame (1).

5. The injection molding device for processing glass sealing strips according to claim 1, characterized in that: The bottom surface of the upper heating platform (12) is provided with a groove (14) that matches the frame (4), and the top surface of the lower heating platform (13) is bolted with a heating protrusion (15) that matches the frame (4). The heating protrusion (15) is hollow inside, and a spiral heating wire is provided inside the heating protrusion (15).

6. The injection molding device for processing glass sealing strips according to claim 1, characterized in that: The upper heating platform (12) and the lower heating platform (13) are respectively provided with a first cavity (28) and a second cavity (30). The upper heating platform (12) is provided with a first through groove (29) connected to the first cavity (28) on the side near the movable frame (20). The lower heating platform (13) is provided with a second through groove (31) connected to the second cavity (30) on the side near the movable frame (20). A linear drive mechanism is provided inside the first cavity (28) and the second cavity (30).

7. The injection molding device for processing glass sealing strips according to claim 6, characterized in that: The top surface of the second clamping bar (26) is welded with a first lifting bar (32), and the bottom surface of the second clamping block (27) is welded with a second lifting bar (33). One end of the first lifting bar (32) passes through the first through groove (29) and extends into the first cavity (28), and one end of the second lifting bar (33) passes through the second through groove (31) and extends into the second cavity (30). The linear drive mechanism includes a third lead screw (34) and a set of second guide rods (35). The third lead screw (34) passes through and is threadedly connected to the first lifting bar (32) and the second lifting bar (33). The second guide rods (35) pass through and are slidably connected to the first lifting bar (32) and the second lifting bar (33).

8. The injection molding device for processing glass sealing strips according to claim 1, characterized in that: The upper heating platform (12) has a guide groove on the side near the movable frame (20), and a cutter (37) is slidably arranged in the guide groove.

9. The injection molding device for processing glass sealing strips according to claim 1, characterized in that: A movable plate (17) is welded and fixed on one side of the movable frame (20). A set of first guide rods (19) that are slidably connected to the movable plate (17) are passed through it. A first screw rod (18) that is threadedly connected to the movable plate (17) is passed through the center of the movable plate (17). The two ends of the first guide rod (19) are welded and fixed to the fixed frame (1) and the boss (36) respectively. The two ends of the first screw rod (18) are respectively connected to the fixed frame (1) and the boss (36) bearings respectively. The boss (36) is integrally formed with the lower heating platform (13).

10. The injection molding device for processing glass sealing strips according to claim 1, characterized in that: The outer walls of the first clamping bar (21) extend horizontally outward to form a first protrusion (23), and the outer walls of the first clamping block (22) extend horizontally outward to form a second protrusion (24). A second lead screw (25) passes through the first protrusion (23) and the second protrusion (24). The end faces of the first protrusion (23) and the second protrusion (24) are slidably connected to the inner wall of the movable frame (20). The two ends of the second lead screw (25) are connected to the wall bearings of the movable frame (20). The second lead screw (25) has a double thread structure. The first protrusion (23) and the second protrusion (24) are screwed into the second lead screw (25) in opposite directions.

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