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CN-122008492-A - Injection molding device for processing glass sealing strips

CN122008492ACN 122008492 ACN122008492 ACN 122008492ACN-122008492-A

Abstract

The invention discloses an injection molding device for processing a glass sealing strip, which comprises a fixed frame, an upper die, a lower die and a moving mechanism, wherein the upper die and the lower die are positioned in the fixed frame, the moving mechanism is used for pulling the framework to translate, a die groove matched with the framework is formed in the bottom surface of the upper die, a die core matched with the framework is fixed on the top surface of the lower die, upper sealing sheets are fixed on the groove walls at two ends of the die groove, lower sealing sheets are fixed at two ends of the die core, a pouring gate is formed in the top wall at one side of the upper die, two flow channels are communicated with the pouring gate, the bottom ends of the flow channels are communicated with the die groove, the moving mechanism comprises a movable frame which moves horizontally, 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 for heating the framework are further arranged at one side of the upper die and the lower die. The invention can realize uninterrupted feeding and continuous injection molding blanking of the metal framework, shortens the production flow, greatly improves the production efficiency and meets the requirement of large-scale continuous production.

Inventors

  • ZHOU KAITAI

Assignees

  • 苏州中隆机电配件有限公司

Dates

Publication Date
20260512
Application Date
20260416

Claims (10)

  1. 1. An injection molding device for processing glass sealing strips comprises a fixed frame (1), an upper die (2) and a lower die (3) which are positioned in the fixed frame (1), and a moving mechanism for pulling a framework (4) to translate, The die is characterized in that a plurality of first guide posts (11) penetrate through the upper die (2) and the lower die (3), a die cavity (6) matched with the framework (4) is formed in the bottom surface of the upper die (2), a die core (5) matched with the framework (4) is fixed on the top surface of the lower die (3), upper sealing sheets (7) are fixed on the groove walls at two ends of the die cavity (6), and lower sealing sheets (8) are fixed at two ends of the die core (5); a gate (9) is formed in the top wall of one side of the upper die (2), the gate (9) is communicated with two flow channels (10), and the bottom ends of the flow channels (10) are communicated with the die grooves (6); The moving mechanism comprises a movable frame (20) which moves horizontally, and a first clamping strip (21) and a first clamping block (22) which move vertically are arranged in the movable frame (20); An upper heating table (12) and a lower heating table (13) for heating the framework (4) are further arranged on one side of the upper die (2) and one side of the lower die (3); The upper heating table (12) is provided with a second clamping strip (26) which moves vertically on one side close to the movable frame (20), and a second clamping block (27) which moves vertically on one side close to the movable frame (20) is arranged on the lower heating table (13).
  2. 2. The injection molding device for processing glass sealing strips according to claim 1, wherein the framework (4) has a U-shaped cross section, the first clamping strip (21) and the second clamping strip (26) are both U-shaped, the top ends of the first clamping block (22) and the second clamping block (27) are arc-shaped, The upper sealing piece (7) and the lower sealing piece (8) are U-shaped.
  3. 3. The injection molding device for processing glass sealing strips according to claim 1, wherein two flow channels (10) are symmetrically distributed, the flow channels (10) are of oblique design, and the axial lead of the flow channels (10) is tangential with the groove wall of the mold groove (6).
  4. 4. The injection molding device for processing glass sealing strips according to claim 1, wherein the lower heating table (13) is fixed on the fixed frame (1), a plurality of second guide posts (16) are fixed on the top surface of the lower heating table (13) through bolts, the top ends of the second guide posts (16) penetrate through the upper heating table (12) and are fixed with the fixed frame (1) through bolts, Both ends of the first guide column (11) are fixed with the fixed frame (1) through bolts.
  5. 5. The injection molding device for processing the glass sealing strip according to claim 1, wherein the bottom surface of the upper heating table (12) is provided with a groove (14) matched with the framework (4), the top surface of the lower heating table (13) is fixedly provided with a heating convex strip (15) matched with the framework (4) through bolts, The inside of the heating raised strips (15) is hollow, and spiral heating wires are arranged inside the heating raised strips (15).
  6. 6. The injection molding device for processing the glass sealing strips according to claim 1, wherein the upper heating table (12) and the lower heating table (13) are internally provided with a first cavity (28) and a second cavity (30) respectively, one side of the upper heating table (12) close to the movable frame (20) is provided with a first through groove (29) communicated with the first cavity (28), one side of the lower heating table (13) close to the movable frame (20) is provided with a second through groove (31) communicated with the second cavity (30), and the interiors of the first cavity (28) and the second cavity (30) are respectively provided with a linear driving mechanism.
  7. 7. The injection molding device for processing glass sealing strips according to claim 6, wherein a first lifting bar (32) is welded on the top surface of the second clamping bar (26), a second lifting bar (33) is welded on the bottom surface of the second clamping block (27), one end of the first lifting bar (32) penetrates through the first through groove (29) and stretches into the first cavity (28), one end of the second lifting bar (33) penetrates through the second through groove (31) and stretches into the second cavity (30), The linear driving mechanism comprises a third screw rod (34) and a group of second guide rods (35), the third screw rod (34) penetrates out of the first lifting strip (32) and the second lifting strip (33) and is in threaded connection, and the second guide rods (35) penetrate out of the first lifting strip (32) and the second lifting strip (33) and are in sliding connection.
  8. 8. The injection molding device for processing the glass sealing strips according to claim 1, wherein a guide groove is formed in one side, close to the movable frame (20), of the upper heating table (12), and a cutter (37) is slidably arranged in the guide groove.
  9. 9. The injection molding device for processing the glass sealing strips according to claim 1, wherein a movable plate (17) is fixedly welded on one side of the movable frame (20), a group of first guide rods (19) connected with the movable plate (17) in a sliding mode penetrate through the movable plate (17), a first screw rod (18) connected with the movable plate in a threaded mode penetrates through the center of the movable plate (17), two ends of the first guide rods (19) are fixedly welded with the fixed frame (1) and the boss (36) respectively, two ends of the first screw rod (18) are connected with the fixed frame (1) and the boss (36) in a bearing mode respectively, and the boss (36) and the lower heating table (13) are integrally formed.
  10. 10. The injection molding device for processing the glass sealing strip according to claim 1, wherein the outer walls of the two sides of the first clamping strip (21) horizontally extend outwards to form a first lug (23), the outer walls of the two sides of the first clamping block (22) horizontally extend outwards to form a second lug (24), the first lug (23) and the second lug (24) are penetrated by a second screw rod (25), the end surfaces of the first lug (23) and the second lug (24) are in sliding connection with the inner wall of the movable frame (20), The two ends of the second screw rod (25) are connected with the wall body bearings of the movable frame (20), the second screw rod (25) is of a double-thread structure, and the threads of the first protruding block (23) and the second protruding block (24) which are screwed with the second screw rod (25) are opposite in screwing direction.

Description

Injection molding device for processing glass sealing strips Technical Field The invention relates to the technical field of glass sealing strip processing, in particular to an injection molding device for glass sealing strip processing. Background The glass sealing strip is widely applied to automobile windows, building doors and windows and other glass assembly structures, is generally arranged between glass and an installation frame body, and is used for realizing the functions of sealing, water resistance, wind resistance, noise reduction, buffering and the like. For the glass sealing strip with higher requirement on part installation precision and complex stress condition or needing to keep a certain structural shape, a metal framework or other reinforced frameworks are often required to be arranged in the glass sealing strip so as to improve the supporting performance, the assembly stability and the use reliability of the product. Existing glass sealing strips are typically manufactured by extrusion and injection molding. The sealing strip with a regular section structure and suitable for continuous molding is produced by adopting an extrusion process, and the glass sealing strip with a complex local structure and high coating molding requirement, particularly with a framework arranged inside, is usually processed by adopting an injection molding process. In the injection molding process of the glass sealing strip with the framework, the framework is generally required to be heated or pretreated, then the framework is placed in a mold cavity, and then the working procedures of mold closing, glue injection, cooling, mold opening, workpiece taking, discharging and the like are finished. In the above processing process, the feeding, transferring, positioning, injection molding and discharging of the skeleton are usually performed step by step, the connectivity between the working procedures is weak, and the working procedures still depend on manual placement and workpiece taking, so that the operation modes of continuous feeding, continuous injection molding and continuous discharging are difficult to form, the single forming period is longer, the overall production beat is slower, and the batch and continuous production requirements are difficult to adapt. If a manual positioning or simple clamping mode is adopted, the skeleton is easy to shift in position, incorrect in posture or locally deform under pressure, and deflection is further generated in the subsequent die assembly and glue injection processes, so that uneven thickness of the rubber coating of the skeleton and reduced dimensional accuracy of products are caused, and the appearance quality and assembly performance of a final product are affected. In addition, the skeleton is usually heated before injection molding to meet the technological requirements of activation of the skeleton surface adhesive and reliable combination of the sizing material and the skeleton. However, in the existing operation mode, a certain exposure time and a waiting time exist in the process of transferring the framework from the heating position to the mold cavity, so that the temperature of the framework is easy to drop too fast, the activation state of the adhesive is influenced, the combination between the colloid and the framework is not firm, local layering or debonding is caused, and the molding quality and the service life of a product are further influenced. Moreover, the connection of the existing device on the demolding and blanking links is generally not smooth enough, which is not beneficial to further shortening the processing period and improving the overall processing efficiency. Based on the above, there is a need to provide an injection molding device for processing a glass sealing strip, so as to achieve the aims of preheating, stable clamping, precise feeding, continuous injection molding and efficient blanking of a framework in the processing process of the glass sealing strip with the framework, thereby solving the problems of insufficient operation continuity, unstable positioning of the framework, poor temperature holding effect, lower demolding and blanking efficiency and the like in the prior art. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art or related art. Therefore, the invention aims to provide an injection molding device for processing glass sealing strips, which comprises a fixed frame, an upper die and a lower die which are positioned in the fixed frame, and a moving mechanism for pulling the framework to translate. The upper die and the lower die are penetrated with a plurality of first guide posts, a die cavity matched with the framework is formed in the bottom surface of the upper die, a die core matched with the framework is fixed on the top surface of the lower die, upper sealing sheets are fixed on the groove walls at two ends of the die cavity, and lo