Cable bridge injection molding device and using method thereof

Abstract

The invention relates to the technical field of cable bridge injection molding, and discloses a cable bridge injection molding device and a using method thereof.The cable bridge injection molding device comprises a base, an air pressure box is fixedly connected to the top of the base, a fixing frame is fixedly connected to the outer wall of the air pressure box, and after an internal mold is cooled, an electric telescopic rod generates contraction force to force a lower mold to move downwards; high-pressure gas is formed on the inner wall of the air pressure box, the piston block is forced to slide upwards along the inner wall of the plane exhaust port, at the moment, the high-pressure gas in the gas outlet groove enters the second slope exhaust port, and the piston block drives the sliding baffle to move towards the two ends along the inner wall of the sliding groove through the push rod; high-pressure gas on the inner wall of the second bevel exhaust port directly acts on the bottom of a finished product, upward thrust is applied to the bottom of the finished product, more high-pressure gas enters the top of the lower die, and the stress area of the bottom of the product is continuously enlarged along with increase of the separation area. And the outer wall of the product is effectively prevented from cracking due to the enlarged stress area.

Description

Technical Field

[0001] The invention relates to the technical field of cable tray injection molding equipment, in particular to a cable tray injection molding device and a use method thereof. Background Art

[0002] Polymer cable tray is a new type of cable tray product. It is suitable for various fields such as petroleum, chemical industry, textile, electricity, machinery, transportation, civil construction, etc. It can replace the current traditional metal cable tray.

[0003] Among them, cable trays are mostly processed by mold closing. After the cable tray is injection molded, the staff is required to disassemble the mold, which has low work efficiency. A push rod is set for demolding. Due to the long and narrow cable tray, the outward force of the push rod may cause cracks on the outer wall of the cable tray. In view of the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a cable tray injection molding device, comprising a base, a pressure box is fixedly connected to the top of the base, a fixing frame is fixedly connected to the outer wall of the pressure box, a plurality of support rods are fixedly connected to the side wall of the base, an upper mold is fixedly connected to one end of the plurality of support rods away from the base, a feed pipe is fixedly connected to the top of the upper mold, and an air inlet assembly is fixedly connected to the side wall of the pressure box;

[0005] The power mechanism includes an electric telescopic rod fixedly connected to the inner wall of the air pressure box, the other end of the electric telescopic rod is fixedly connected to the lower mold, the outer wall of the lower mold is fixedly connected to a sealing strip, the bottom of the lower mold is provided with an inclined exhaust port 1, the top of the inclined exhaust port 1 is provided with a flat exhaust port, the top of the flat exhaust port is provided with an inclined exhaust port 2, the inner wall of the flat exhaust port is fixedly connected with a blocking component, the inner wall of the lower mold is fixedly connected with a control component, before use, the base is installed at the desired position, and the feed pipe is ensured to be connected to the external feed pipe, and then the power of the electric telescopic rod is turned on, the electric telescopic rod drives the lower mold to contact the upper mold, and the external melt reaches the gap between the lower mold and the upper mold through the feed pipe, thereby completing the injection molding;

[0006] The control mechanism comprises a piston block slidably connected to the inner wall of the plane exhaust port, an air outlet groove is provided on the inner wall of the piston block, a fixed bracket is fixedly connected to the top of the air outlet groove, a push rod is rotatably connected to the inner wall of the fixed bracket, a sliding groove is provided on the inner wall of the lower mold, a sliding baffle is slidably connected to the inner wall of the sliding groove, and a spring 1 is fixedly connected to the side wall of the sliding baffle. After the internal mold is cooled, the electric telescopic rod generates a contraction force, forcing the lower mold and the sealing strip to slide downward along the inner wall of the air pressure box. At this time, as the lower mold moves downward, high-pressure gas is formed on the inner wall of the air pressure box. The high-pressure gas enters the inner wall of the air outlet groove through the inclined exhaust port 1 and the plane exhaust port, and forces the piston block to slide upward along the inner wall of the plane exhaust port, presenting a Figure 6 state, and at this time, the high-pressure gas in the air outlet groove enters the interior of the inclined exhaust port 2. During the upward movement of the piston block, the piston block forces the sliding baffle to move to both ends along the inner wall of the slide groove through the push rod, so that the high-pressure gas on the inner wall of the inclined exhaust port 2 directly acts on the bottom of the finished product, exerting an upward thrust on the bottom of the finished product, and as more high-pressure gas enters the top of the lower mold, the finished product and the top of the lower mold will gradually separate, and as the separation area increases, the force-bearing area of ​​the bottom of the product continues to expand, and the expanded force-bearing area effectively avoids cracks on the outer wall of the product.

[0007] Preferably, the blocking assembly includes a cross 1 fixedly connected to the inner wall of the plane exhaust port, a hydraulic telescopic rod is fixedly connected to the bottom of the cross 1, and a spring 2 is fixedly connected to the side wall of the hydraulic telescopic rod.

[0008] Preferably, the blocking assembly also includes a blocking plate fixedly connected to the end of the hydraulic telescopic rod away from the cross, the end of the spring away from the sliding baffle is fixedly connected to the inner wall of the slide groove, the outer wall of the sealing strip is slidably connected to the inner wall of the air pressure box, and the characteristic of the above-mentioned gas to complete the demoulding is utilized, and a blocking plate is arranged inside the equipment, wherein, due to the long length of the bridge frame, when the lower mold slides downward, some positions complete the demoulding, while the other positions are still in a bonded state, after some bridge frames complete the demoulding, at this time, the gas inside the air pressure box will pass through the inclined exhaust port 1, the plane exhaust port, the inclined exhaust port 2 and The gap between the lower mold and the finished product is discharged outward, and the discharged gas at this time will form an airflow, which will pass through the gap between the inclined exhaust port 1 and the blocking plate, and the upward force of the airflow will act on the bottom of the blocking plate, forcing the blocking plate to move upward, and the upward blocking plate will contact the inclined surface of the inclined exhaust port 1 to achieve the blocking of the inclined exhaust port 1. Through the application of the above-mentioned components, when the gas inside the air pressure box overflows outward, the corresponding inclined exhaust port 1 can be blocked in time, avoiding the pressure relief of part of the inclined exhaust port 1, resulting in the dissipation of the high-pressure gas inside the air pressure box, affecting the demoulding efficiency of the rest.

[0009] Preferably, the control component includes a mounting groove provided on the inner wall of the lower mold, a transmission pipe is connected through the side wall of the hydraulic telescopic rod, and a sliding cylinder is connected through one end of the transmission pipe away from the hydraulic telescopic rod.

[0010] Preferably, the control component also includes a piston block slidably connected to the inner wall of the sliding cylinder, the bottom of the piston block is fixedly connected to a contact rod, the inner wall of the mounting groove is fixedly connected to the outer wall of the transmission tube, and utilizing the above-mentioned feature of the blocking plate moving up, a hydraulic telescopic rod and a control component are arranged inside the equipment, when the blocking plate moves up, the hydraulic telescopic rod is compressed, forcing the liquid inside the hydraulic telescopic rod to enter the sliding cylinder through the transmission tube, and the increase of liquid inside the sliding cylinder will force the piston block to slide downward along the inner wall of the sliding cylinder, and the downward moving piston block drives the contact rod to move down synchronously and is in a waiting state; and as all the blocking plates block the corresponding inclined exhaust ports, the lower mold will be unable to move. The gas is discharged upward. At this time, the electric telescopic rod contracts to compress the gas inside the air pressure box. During the downward movement of the lower mold, the bottom of the contact rod will contact the bottom of the inner wall of the air pressure box. At this time, the lower mold continues to move downward, forcing the contact rod to push the piston block to move upward along the inner wall of the sliding cylinder. The liquid inside the sliding cylinder is returned to the inner wall of the hydraulic telescopic rod through the transmission pipe, causing the hydraulic telescopic rod to extend. The extended blocking plate drives the blocking plate away from the inclined exhaust port 1, so that the high-pressure gas inside the air pressure box acts on the bottom of the product again through the gap between the blocking plate and the inclined exhaust port 1. Through the operation of the above components, it is avoided that part of the product is still in contact with the inner wall of the lower mold, affecting the demoulding efficiency of the equipment.

[0011] Preferably, the air inlet assembly includes an air inlet groove provided on the side wall of the air pressure box, a mounting rod is fixedly connected to the inner wall of the air inlet groove, a sliding groove is provided on the inner wall of the mounting rod, and a cross 2 is slidably connected to the inner wall of the sliding groove.

[0012] Preferably, the air intake component also includes a sliding blocking block fixedly connected to the side wall of the second cross, the end of the second cross away from the sliding blocking block is fixedly connected to the fixed square plate one, the side wall of the fixed square plate one is fixedly connected to a spring three, the end of the spring three away from the fixed square plate one is fixedly connected to the fixed square plate two, the outer wall of the fixed square plate two is fixedly connected to the top of the mounting rod, and utilizing the characteristic that after the above-mentioned demolding, the electric telescopic rod drives the lower mold to reset, an air intake component is provided inside the equipment, when the lower mold moves upward, the piston block will slide downward along the inner wall of the plane exhaust port, so that the external gas cannot enter the interior of the air pressure box through the plane exhaust port, and as the lower mold continues to move upward, the suction force generated by the air pressure box is greater than the elastic force of the spring three, and the second cross will move along the inner wall of the sliding groove, and the external gas enters the interior of the air pressure box through the gap between the second cross and the sliding groove, thereby completing the replenishment of air on the inner wall of the air pressure box, and through the application of the above-mentioned components, the fully automatic demolding process of the equipment is realized.

[0013] A method for using a cable tray injection molding device comprises the following steps:

[0014] S1: Install equipment;

[0015] S2: Turn on the power;

[0016] S3: Demolding of the device.

[0017] The present invention has the following beneficial effects:

[0018] (1) In order to solve the problem that the push rod easily causes cracks in the plastic bridge, the present invention provides a power mechanism and a control mechanism inside the device. Before use, the base is installed in the desired position and the feed pipe is connected to the external feed pipe. Then, the power of the electric telescopic rod is turned on. The electric telescopic rod drives the lower mold to contact the upper mold. The external molten metal reaches the gap between the lower mold and the upper mold through the feed pipe, thereby completing the injection molding. After the internal mold is cooled, the electric telescopic rod generates a contraction force, forcing the lower mold and the sealing strip to slide downward along the inner wall of the air pressure box. At this time, as the lower mold moves downward, high-pressure gas is formed on the inner wall of the air pressure box. The high-pressure gas enters the inner wall of the air outlet groove through the inclined exhaust port and the plane exhaust port, and forces the piston block to slide upward along the inner wall of the plane exhaust port, presenting a Figure 6 state, and at this time, the high-pressure gas in the air outlet groove enters the interior of the inclined exhaust port 2. During the upward movement of the piston block, the piston block forces the sliding baffle to move to both ends along the inner wall of the slide groove through the push rod, so that the high-pressure gas on the inner wall of the inclined exhaust port 2 directly acts on the bottom of the finished product, exerting an upward thrust on the bottom of the finished product, and as more high-pressure gas enters the top of the lower mold, the finished product and the top of the lower mold will gradually separate, and as the separation area increases, the force-bearing area of ​​the bottom of the product continues to expand, and the expanded force-bearing area effectively avoids cracks on the outer wall of the product.

[0019] (2) The present invention utilizes the characteristic of the above-mentioned gas to complete demoulding, and a blocking plate is arranged inside the equipment. Among them, due to the long length of the bridge frame, when the lower mold slides downward, there are some positions where demoulding is completed, while the remaining positions are still in a bonding state. After the partial bridge frame completes demoulding, at this time, the gas inside the air pressure box will be discharged outward through the inclined exhaust port 1, the plane exhaust port, the inclined exhaust port 2 and the gap between the lower mold and the finished product, and the gas discharged outward at this time will form an airflow, which will pass through the gap between the inclined exhaust port 1 and the blocking plate, and the upward force of the airflow will act on the bottom of the blocking plate, forcing the blocking plate to move upward, and the upward moving blocking plate will contact the inclined surface of the inclined exhaust port 1 to achieve the blocking of the inclined exhaust port 1. Through the application of the above-mentioned components, when the gas inside the air pressure box overflows outward, the corresponding inclined exhaust port 1 can be blocked in time, thereby avoiding the pressure relief of part of the inclined exhaust port 1, resulting in the dissipation of the high-pressure gas inside the air pressure box, affecting the demoulding efficiency of the rest.

[0020] (3) The present invention utilizes the above-mentioned feature of the blocking plate moving up, and a hydraulic telescopic rod and a control assembly are arranged inside the equipment. When the blocking plate moves up, the hydraulic telescopic rod is compressed, forcing the liquid inside the hydraulic telescopic rod to enter the sliding cylinder through the transmission pipe. The increase of liquid inside the sliding cylinder will force the piston block to slide downward along the inner wall of the sliding cylinder. The downward moving piston block drives the contact rod to move down synchronously and is in a waiting state. After all the blocking plates block the corresponding inclined exhaust ports, the lower mold will be unable to discharge gas upward. At this time, the electric telescopic rod contracts to compress the gas inside the air pressure box. , and in the process of the lower mold moving downward, the bottom of the contact rod will contact the bottom of the inner wall of the air pressure box. At this time, the lower mold continues to move downward, forcing the contact rod to push the piston block to move upward along the inner wall of the sliding cylinder. The liquid inside the sliding cylinder is returned to the inner wall of the hydraulic telescopic rod through the transmission pipe, causing the hydraulic telescopic rod to extend. The extended blocking plate drives the blocking plate away from the inclined exhaust port 1, so that the high-pressure gas inside the air pressure box acts on the bottom of the product again through the gap between the blocking plate and the inclined exhaust port 1. Through the operation of the above components, it is avoided that part of the product is still in contact with the inner wall of the lower mold, affecting the demoulding efficiency of the equipment.

[0021] (4) The present invention utilizes the characteristic that after demolding, the electric telescopic rod drives the lower mold to reset. An air intake assembly is arranged inside the equipment. When the lower mold moves upward, the piston block will slide downward along the inner wall of the planar exhaust port, so that the external gas cannot enter the air pressure box through the planar exhaust port. As the lower mold continues to move upward, the suction force generated by the air pressure box is greater than the elastic force of the spring three. At this time, the cross two will move along the inner wall of the sliding groove, and the external gas will enter the air pressure box through the gap between the cross two and the sliding groove, thereby completing the replenishment of the air on the inner wall of the air pressure box. Through the application of the above-mentioned assembly, the fully automatic demolding process of the equipment can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is a cross-sectional schematic diagram of the power mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal components of the power mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram;

[0028] Figure 6 It is a schematic diagram of the motion state of the control mechanism of the present invention;

[0029] Figure 7 It is a cross-sectional schematic diagram of the plugging assembly of the present invention;

[0030] Figure 8 It is a cross-sectional schematic diagram of the control assembly of the present invention;

[0031] Fig. 9 It is a cross-sectional schematic diagram of the air intake assembly of the present invention;

[0032] Fig.10 It is a schematic diagram of the internal components of the air intake assembly of the present invention;

[0033] Fig.11 It is a schematic diagram of the working process of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] In the figure: 1. base; 11. air pressure box; 12. fixed frame; 13. support rod; 14. upper mold; 15. feeding pipe; 2. power mechanism; 21. electric telescopic rod; 22. lower mold; 23. sealing strip; 24. inclined exhaust port 1; 25. flat exhaust port; 26. inclined exhaust port 2; 3. control mechanism; 31. piston block; 32. air outlet groove; 33. fixed bracket; 34. push rod; 35. slide groove; 36. sliding baffle; 37. Spring one; 4, blocking assembly; 41, cross one; 42, hydraulic telescopic rod; 43, spring two; 44, blocking plate; 5, control assembly; 51, mounting groove; 52, transmission pipe; 53, sliding cylinder; 54, piston block; 55, contact rod; 6, air intake assembly; 61, air intake groove; 62, mounting rod; 63, sliding groove; 64, cross two; 65, sliding blocking block; 66, fixed square plate one; 67, spring three; 68, fixed square plate two. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] For example, see Figure 1 - Figure 6 The present invention is a cable tray injection molding device, comprising a base 1, a pressure box 11 is fixedly connected to the top of the base 1, a fixing frame 12 is fixedly connected to the outer wall of the pressure box 11, a plurality of support rods 13 are fixedly connected to the side wall of the base 1, an upper mold 14 is fixedly connected to one end of the plurality of support rods 13 away from the base 1, a feed pipe 15 is fixedly connected to the top of the upper mold 14, and an air inlet assembly 6 is fixedly connected to the side wall of the pressure box 11;

[0038] The power mechanism 2 includes an electric telescopic rod 21 fixedly connected to the inner wall of the air pressure box 11, the other end of the electric telescopic rod 21 is fixedly connected to the lower mold 22, the outer wall of the lower mold 22 is fixedly connected to a sealing strip 23, the bottom of the lower mold 22 is provided with an inclined exhaust port 1 24, the top of the inclined exhaust port 1 24 is provided with a flat exhaust port 25, the top of the flat exhaust port 25 is provided with an inclined exhaust port 26, the inner wall of the flat exhaust port 25 is fixedly connected with a blocking component 4, and the inner wall of the lower mold 22 is fixedly connected with a control component 5. Before use, the base 1 is installed at the desired position, and the feed pipe 15 is ensured to be connected to the external feed pipe, and then the power of the electric telescopic rod 21 is turned on, and the electric telescopic rod 21 drives the lower mold 22 to contact the upper mold 14, and the external melt reaches the gap between the lower mold 22 and the upper mold 14 through the feed pipe 15, thereby completing the injection molding;

[0039] The control mechanism 3 includes a piston block 31 slidably connected to the inner wall of the plane exhaust port 25, an air outlet groove 32 is provided on the inner wall of the piston block 31, a fixed bracket 33 is fixedly connected to the top of the air outlet groove 32, a push rod 34 is rotatably connected to the inner wall of the fixed bracket 33, a slide groove 35 is provided on the inner wall of the lower mold 22, a sliding baffle 36 is slidably connected to the inner wall of the slide groove 35, and a spring 37 is fixedly connected to the side wall of the sliding baffle 36. After the internal mold is cooled, the electric telescopic rod 21 generates a contraction force, forcing the lower mold 22 and the sealing strip 23 to slide downward along the inner wall of the air pressure box 11. At this time, as the lower mold 22 moves downward, high-pressure gas is formed on the inner wall of the air pressure box 11. The high-pressure gas enters the inner wall of the air outlet groove 32 through the inclined exhaust port 24 and the plane exhaust port 25, and forces the piston block 31 to slide upward along the inner wall of the plane exhaust port 25, presenting a Figure 6 state, and at this time, the high-pressure gas in the gas outlet groove 32 enters the interior of the inclined exhaust port 26. During the upward movement of the piston block 31, the piston block 31 forces the sliding baffle 36 to move toward both ends along the inner wall of the slide groove 35 through the push rod 34, so that the high-pressure gas on the inner wall of the inclined exhaust port 26 directly acts on the bottom of the finished product, exerting an upward thrust on the bottom of the finished product, and as more high-pressure gas enters the top of the lower mold 22, the finished product and the top of the lower mold 22 will gradually separate, and as the separation area increases, the force-bearing area of ​​the bottom of the product continues to expand, and the expanded force-bearing area effectively avoids cracks on the outer wall of the product.

[0040] For example 2, please refer to Figure 7 - Fig.11 The present invention is a cable tray injection molding device. Based on the first embodiment, the blocking component 4 includes a cross 41 fixedly connected to the inner wall of the plane exhaust port 25, a hydraulic telescopic rod 42 is fixedly connected to the bottom of the cross 41, and a spring 2 43 is fixedly connected to the side wall of the hydraulic telescopic rod 42.

[0041] The blocking assembly 4 also includes a blocking plate 44 fixedly connected to the end of the hydraulic telescopic rod 42 away from the cross 41, the end of the spring 37 away from the sliding baffle 36 is fixedly connected to the inner wall of the slide groove 35, the outer wall of the sealing strip 23 is slidably connected to the inner wall of the air pressure box 11, and the characteristic of the above-mentioned gas to complete the demoulding is utilized. A blocking plate 44 is arranged inside the equipment, wherein, due to the long length of the bridge, when the lower mold 22 slides downward, some positions complete the demoulding, while the other positions are still in a bonded state. After the demoulding of some bridges is completed, at this time, the gas inside the air pressure box 11 will pass through the inclined exhaust port 1 24, the plane exhaust port 25, the inclined exhaust port 26 and the like. The gas discharged outwards through the gap between the lower mold 22 and the finished product, and the gas discharged outwards at this time will form an airflow, which will pass through the gap between the inclined exhaust port 24 and the blocking plate 44, and the upward force of the airflow will act on the bottom of the blocking plate 44, forcing the blocking plate 44 to move upward, and the upward blocking plate 44 will contact the inclined surface of the inclined exhaust port 24 to achieve the blocking of the inclined exhaust port 24. Through the application of the above-mentioned components, when the internal gas of the air pressure box 11 overflows outwards, the corresponding inclined exhaust port 24 can be blocked in time to avoid the pressure relief of some inclined exhaust ports 24, which will cause the dissipation of the high-pressure gas inside the air pressure box 11 and affect the demoulding efficiency of the rest.

[0042] The control assembly 5 includes a mounting groove 51 formed on the inner wall of the lower mold 22 . A transmission pipe 52 is connected through the side wall of the hydraulic telescopic rod 42 . A sliding cylinder 53 is connected through one end of the transmission pipe 52 away from the hydraulic telescopic rod 42 .

[0043] The control assembly 5 also includes a piston block 54 slidably connected to the inner wall of the sliding cylinder 53, and the bottom of the piston block 54 is fixedly connected to a contact rod 55. The inner wall of the mounting groove 51 is fixedly connected to the outer wall of the transmission pipe 52. Utilizing the characteristic of the blocking plate 44 moving upward, a hydraulic telescopic rod 42 and a control assembly 5 are arranged inside the equipment. When the blocking plate 44 moves upward, the hydraulic telescopic rod 42 is compressed, forcing the internal liquid of the hydraulic telescopic rod 42 to enter the sliding cylinder 53 through the transmission pipe 52. The increase in the internal liquid of the sliding cylinder 53 will force the piston block 54 to slide downward along the inner wall of the sliding cylinder 53. The downward moving piston block 54 drives the contact rod 55 to move downward synchronously and is in a waiting state. After all the blocking plates 44 block the corresponding inclined exhaust ports 24, the lower mold 22 will be unable to move. The gas is discharged upward. At this time, the electric telescopic rod 21 contracts to compress the gas inside the air pressure box 11, and in the process of the lower mold 22 moving downward, the bottom of the contact rod 55 will contact the bottom of the inner wall of the air pressure box 11. At this time, the lower mold 22 continues to move downward, forcing the contact rod 55 to push the piston block 54 to move upward along the inner wall of the sliding cylinder 53. The liquid inside the sliding cylinder 53 is returned to the inner wall of the hydraulic telescopic rod 42 through the transmission pipe 52, so that the hydraulic telescopic rod 42 is extended. The extended blocking plate 44 drives the blocking plate 44 away from the inclined exhaust port 24, so that the high-pressure gas inside the air pressure box 11 acts on the bottom of the product again through the gap between the blocking plate 44 and the inclined exhaust port 24. Through the operation of the above components, it is avoided that part of the product is still in contact with the inner wall of the lower mold 22, affecting the demolding efficiency of the equipment.

[0044] The air inlet assembly 6 includes an air inlet groove 61 provided on the side wall of the air pressure box 11, a mounting rod 62 is fixedly connected to the inner wall of the air inlet groove 61, a sliding groove 63 is provided on the inner wall of the mounting rod 62, and a cross 64 is slidably connected to the inner wall of the sliding groove 63.

[0045] The air inlet assembly 6 also includes a sliding blocking block 65 fixedly connected to the side wall of the cross 2 64, one end of the cross 2 64 away from the sliding blocking block 65 is fixedly connected to a fixed square plate 1 66, a spring 3 67 is fixedly connected to the side wall of the fixed square plate 1 66, one end of the spring 3 67 away from the fixed square plate 1 66 is fixedly connected to a fixed square plate 2 68, and the outer wall of the fixed square plate 2 68 is fixedly connected to the top of the mounting rod 62. After the demoulding, the electric telescopic rod 21 drives the lower mold 22 to reset, and the air inlet assembly 6 is arranged inside the equipment. When moving upward, the piston block 31 will slide downward along the inner wall of the planar exhaust port 25, preventing external gas from entering the interior of the air pressure box 11 through the planar exhaust port 25. As the lower mold 22 continues to move upward, the suction force generated by the air pressure box 11 is greater than the elastic force of the spring three 67. At this time, the cross two 64 will move along the inner wall of the sliding groove 63, and the external gas will enter the interior of the air pressure box 11 through the gap between the cross two 64 and the sliding groove 63, completing the replenishment of the air on the inner wall of the air pressure box 11. Through the application of the above-mentioned components, the fully automatic demolding process of the equipment is realized.

[0046] The method for using the cable tray injection molding device includes the following steps:

[0047] S1: Install equipment;

[0048] S2: Turn on the power;

[0049] S3: Demolding of the device.

[0050] A specific application of this embodiment is: before use, the base 1 is installed in the required position, and the feed pipe 15 is ensured to be connected to the external feed pipe, and then the power of the electric telescopic rod 21 is turned on, and the electric telescopic rod 21 drives the lower mold 22 to contact the upper mold 14, and the external melt reaches the gap between the lower mold 22 and the upper mold 14 through the feed pipe 15, thereby completing the injection molding, and after the internal mold is cooled, the electric telescopic rod 21 generates a contraction force, forcing the lower mold 22 and the sealing strip 23 to slide downward along the inner wall of the air pressure box 11. At this time, as the lower mold 22 moves downward, high-pressure gas is formed on the inner wall of the air pressure box 11, and the high-pressure gas enters the inner wall of the air outlet groove 32 through the inclined exhaust port 1 24 and the plane exhaust port 25, and forces the piston block 31 to slide upward along the inner wall of the plane exhaust port 25, presenting as shown in the figure. Figure 6state, and at this time, the high-pressure gas in the gas outlet groove 32 enters the interior of the inclined exhaust port 26. During the upward movement of the piston block 31, the piston block 31 forces the sliding baffle 36 to move toward both ends along the inner wall of the slide groove 35 through the push rod 34, so that the high-pressure gas on the inner wall of the inclined exhaust port 26 directly acts on the bottom of the finished product, exerting an upward thrust on the bottom of the finished product, and as more high-pressure gas enters the top of the lower mold 22, the finished product and the top of the lower mold 22 will gradually separate, and as the separation area increases, the force-bearing area of ​​the bottom of the product continues to expand, and the expanded force-bearing area effectively avoids cracks on the outer wall of the product.

[0051] Taking advantage of the above-mentioned feature of demoulding by gas, a blocking plate 44 is provided inside the equipment. Due to the long length of the bridge, when the lower mold 22 slides downward, demoulding is completed at some positions, while the remaining positions are still in a bonding state. After demoulding is completed at some positions of the bridge, the gas inside the air pressure box 11 will be discharged outward through the inclined exhaust port 1 24, the plane exhaust port 25, the inclined exhaust port 26 and the gap between the lower mold 22 and the finished product, and the gas discharged outward at this time will form an airflow, which will pass through the inclined exhaust port 24, the plane exhaust port 25, the inclined exhaust port 26 and the gap between the lower mold 22 and the finished product. The gap between the air port 24 and the blocking plate 44, and the upward force of the airflow will act on the bottom of the blocking plate 44, forcing the blocking plate 44 to move upward, and the upward blocking plate 44 will contact the inclined surface of the inclined exhaust port 24 to achieve the blocking of the inclined exhaust port 24. Through the application of the above-mentioned components, when the internal gas of the air pressure box 11 overflows outward, the corresponding inclined exhaust port 24 can be blocked in time to avoid the pressure relief of some inclined exhaust ports 24, resulting in the dissipation of the high-pressure gas inside the air pressure box 11 and affecting the remaining demoulding efficiency.

[0052] Utilizing the characteristic of the blocking plate 44 moving upward, a hydraulic telescopic rod 42 and a control assembly 5 are provided inside the equipment. When the blocking plate 44 moves upward, the hydraulic telescopic rod 42 is compressed, forcing the liquid inside the hydraulic telescopic rod 42 to enter the interior of the sliding cylinder 53 through the transmission pipe 52. The liquid inside the sliding cylinder 53 increases, forcing the piston block 54 to slide downward along the inner wall of the sliding cylinder 53. The downwardly moving piston block 54 drives the contact rod 55 to move downward synchronously and is in a waiting state. After all the blocking plates 44 block the corresponding inclined exhaust ports 24, the lower mold 22 will not be able to discharge gas upward. At this time, the electric telescopic rod 21 contracts to compress the gas inside the air pressure box 11. During the downward movement of the lower mold 22, the bottom of the contact rod 55 will contact the bottom of the inner wall of the air pressure box 11. At this time, the lower mold 22 continues to move downward, forcing the contact rod 55 to push the piston block 54 to move upward along the inner wall of the sliding cylinder 53. The liquid inside the sliding cylinder 53 returns to the hydraulic The inner wall of the telescopic rod 42 causes the hydraulic telescopic rod 42 to extend, and the extended blocking plate 44 drives the blocking plate 44 away from the inclined exhaust port 24, so that the high-pressure gas in the air pressure box 11 acts on the bottom of the product again through the gap between the blocking plate 44 and the inclined exhaust port 24. Through the operation of the above-mentioned components, it is avoided that part of the product is still in contact with the inner wall of the lower mold 22, affecting the demoulding efficiency of the equipment. When the lower mold 22 moves upward, the piston block 31 will slide downward along the inner wall of the plane exhaust port 25, so that the external gas cannot enter the air pressure box 11 through the plane exhaust port 25. As the lower mold 22 continues to move upward, the suction force generated by the air pressure box 11 is greater than the elastic force of the spring three 67. At this time, the cross two 64 will move along the inner wall of the sliding groove 63, and the external gas enters the air pressure box 11 through the gap between the cross two 64 and the sliding groove 63, completing the replenishment of the air on the inner wall of the air pressure box 11. Through the application of the above-mentioned components, the fully automatic demoulding process of the equipment is realized.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cable tray injection molding device, comprising a base (1), the top of the base (1) is fixedly connected to a pressure box (11), the outer wall of the pressure box (11) is fixedly connected to a fixing frame (12), the side wall of the base (1) is fixedly connected to a plurality of support rods (13), the ends of the plurality of support rods (13) away from the base (1) are fixedly connected to an upper mold (14), the top of the upper mold (14) is fixedly connected to a feed pipe (15), and the side wall of the pressure box (11) is fixedly connected to an air inlet assembly (6), characterized in that: Also includes: A power mechanism (2), the power mechanism (2) comprising an electric telescopic rod (21) fixedly connected to the inner wall of the air pressure box (11), the other end of the electric telescopic rod (21) fixedly connected to a lower mold (22), a sealing strip (23) fixedly connected to the outer wall of the lower mold (22), a first inclined exhaust port (24) provided at the bottom of the lower mold (22), a plane exhaust port (25) provided at the top of the first inclined exhaust port (24), a second inclined exhaust port (26) provided at the top of the plane exhaust port (25), a blocking component (4) fixedly connected to the inner wall of the plane exhaust port (25), and a control component (5) fixedly connected to the inner wall of the lower mold (22); A control mechanism (3), the control mechanism (3) comprising a piston block (31) slidably connected to the inner wall of the plane exhaust port (25), an air outlet groove (32) being provided on the inner wall of the piston block (31), a fixed bracket (33) being fixedly connected to the top of the air outlet groove (32), a push rod (34) being rotatably connected to the inner wall of the fixed bracket (33), a slide groove (35) being provided on the inner wall of the lower mold (22), a sliding baffle (36) being slidably connected to the inner wall of the slide groove (35), and a spring (37) being fixedly connected to the side wall of the sliding baffle (36).

2. A cable tray injection molding device according to claim 1, characterized in that: The blocking assembly (4) comprises a cross (41) fixedly connected to the inner wall of the plane exhaust port (25), a hydraulic telescopic rod (42) fixedly connected to the bottom of the cross (41), and a spring (43) fixedly connected to the side wall of the hydraulic telescopic rod (42).

3. A cable tray injection molding device according to claim 2, characterized in that: The blocking assembly (4) also includes a blocking plate (44) fixedly connected to the end of the hydraulic telescopic rod (42) away from the cross (41), the end of the spring (37) away from the sliding baffle (36) is fixedly connected to the inner wall of the slide groove (35), and the outer wall of the sealing strip (23) is slidably connected to the inner wall of the air pressure box (11).

4. A cable tray injection molding device according to claim 3, characterized in that: The control assembly (5) comprises a mounting groove (51) provided on the inner wall of the lower mold (22); a transmission pipe (52) is connected through the side wall of the hydraulic telescopic rod (42); and a sliding cylinder (53) is connected through one end of the transmission pipe (52) away from the hydraulic telescopic rod (42).

5. A cable tray injection molding device according to claim 4, characterized in that: The control assembly (5) further comprises a piston block (54) slidably connected to the inner wall of the sliding cylinder (53), a contact rod (55) being fixedly connected to the bottom of the piston block (54), and an inner wall of the mounting groove (51) being fixedly connected to the outer wall of the transmission tube (52).

6. A cable tray injection molding device according to claim 5, characterized in that: The air inlet assembly (6) comprises an air inlet groove (61) provided on the side wall of the air pressure box (11), a mounting rod (62) is fixedly connected to the inner wall of the air inlet groove (61), a sliding groove (63) is provided on the inner wall of the mounting rod (62), and a cross (64) is slidably connected to the inner wall of the sliding groove (63).

7. A cable tray injection molding device according to claim 6, characterized in that: The air intake assembly (6) also includes a sliding blocking block (65) fixedly connected to the side wall of the cross 2 (64); the end of the cross 2 (64) away from the sliding blocking block (65) is fixedly connected to a fixed square plate 1 (66); the side wall of the fixed square plate 1 (66) is fixedly connected to a spring 3 (67); the end of the spring 3 (67) away from the fixed square plate 1 (66) is fixedly connected to a fixed square plate 2 (68); the outer wall of the fixed square plate 2 (68) is fixedly connected to the top of the mounting rod (62).

8. A method for using a cable tray injection molding device, using the cable tray injection molding device according to claim 7, characterized in that: The following steps are included: S1: Install equipment; S2: Turn on the power; S3: Demolding of the device.

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