Protective steel sheet waste breaking-off device

Abstract

The invention relates to the technical field of protective steel sheet production, and discloses a protective steel sheet waste breaking-off device which comprises a rack, a jig, a first breaking-off mechanism, a second breaking-off mechanism and a positioning mechanism. The jig is arranged on the rack and provided with a first trough used for containing and limiting a protective steel sheet injection molding assembly, and two second troughs are formed in the bottom of the first trough and used for containing protective steel sheet injection molding parts and limiting main plate blocks of the protective steel sheet injection molding parts. The first breaking-off mechanism is arranged on the rack, located above the jig and used for pressing the two protective steel sheet injection molding parts in the first material groove into the corresponding second material grooves. The second breaking-off mechanism is arranged on the rack and / or the output end of the first breaking-off mechanism and used for driving the steel sheets in the second trough to swing back and forth relative to the main plate block; the positioning mechanism is arranged at the output end of the jig and / or the first breaking mechanism and used for fixing the main plate in the second trough. According to the invention, the problems of how to improve the production efficiency of the protective steel sheet and the injection molded part thereof and the consistency of the product quality can be solved.

Description

Technical Field

[0001] This invention relates to the field of steel sheet production technology, specifically to a device for breaking up scrap from steel sheets. Background Technology

[0002] There is a type of protective steel plate component, mainly composed of a main plate and two steel plates assembled together. Currently, the main plate and steel plates are primarily manufactured as a single piece using injection molding, and they are all injection molded together in the same cavity. Therefore, after injection molding, the two steel plates are respectively connected to both sides of the main plate. In order to subsequently assemble the two steel plates onto the main plate to form a complete protective steel plate, it is necessary to first break the main plate and the two steel plates apart.

[0003] To improve production efficiency, the existing steel guard plate injection mold has been improved. The improved mold has two cavities connected by a connecting channel. During injection molding, material can flow into both cavities simultaneously by injecting through the connecting channel. This design allows the improved mold to form the main plates and steel plates of both steel guard plates in a single process, significantly improving production efficiency and reducing the number of injection cycles and equipment start-up and shutdown times. However, because the two cavities are connected by the connecting channel, a connecting rod will inevitably form between the main plates of the two steel guard plates during the injection molding process, such as... Figure 1 As shown. This means that after the main plate and steel sheet are injection molded, the connecting rod needs to be broken off from the two main plates first, and then the main plate and two steel sheets need to be broken off as in the traditional process, so as to facilitate the subsequent assembly work.

[0004] Currently, both the breaking of the connecting rod and the steel sheet mainly rely on manual, repeated folding and turning. This manual operation method is inefficient, and the repetitive nature of the same action over a long period can easily lead to operator fatigue, further reducing work efficiency and making it difficult to meet the needs of large-scale production. Furthermore, due to the numerous uncontrollable factors in manual operation, it is difficult to effectively guarantee the consistency of product quality. Improper operation, such as excessive force or angle deviation, can easily damage, deform, or scratch the injection-molded steel sheet, leading to material scrap and increased production costs.

[0005] To address the aforementioned issues, it is necessary to develop a scrap breaking device for steel guard sheets to replace manual breaking operations, thereby improving the production efficiency of steel guard sheets, ensuring product quality consistency, and reducing production costs. Summary of the Invention

[0006] (a) Technical problems to be solved This invention provides a device for breaking up scrap steel plates, which can at least solve the technical problem of how to improve the production efficiency of steel plates and their injection molded parts, as well as the consistency of product quality.

[0007] (II) Technical Solution To solve the above-mentioned technical problems, the present invention provides the following technical solution: a scrap breaking device for steel guard sheets, used to break scrap from a steel guard sheet injection molding assembly, the steel guard sheet injection molding assembly including two steel guard sheet injection molding parts and a connecting rod integrally connected between the two steel guard sheet injection molding parts, the steel guard sheet injection molding part including a main plate and two steel sheets integrally connected to both sides of the main plate; the scrap breaking device for steel guard sheets includes: frame; The fixture is mounted on the frame and has a first material trough for placing and limiting the injection molding assembly of the protective steel sheet. The bottom of the first material trough has two second material troughs for placing the injection molding part of the protective steel sheet and limiting its main plate. The first breaking mechanism is mounted on the frame and located above the fixture. The first breaking mechanism is used to press the two protective steel plate injection molded parts in the first material groove into the corresponding second material groove to disconnect the connecting rod and the two protective steel plate injection molded parts. The second breaking mechanism is located on the output end of the frame and / or the first breaking mechanism, and is used to drive the steel sheet in the second trough to swing back and forth relative to the main plate to break the main plate and the two steel sheets. A positioning mechanism is located on the output end of the fixture and / or the first breaking mechanism, and is used to fix the main plate in the second trough.

[0008] Further, a right-angle plate is provided on one side of the aforementioned main plate, and the fixture is provided with a groove communicating with the second material trough; the positioning mechanism includes: The pressure block is slidably connected to the chute and is positioned opposite to the right-angle plate in the second trough. The elastic element is connected to the fixture and the pressure block at both ends, and the elastic element has the elastic force to drive the pressure block to slide along the slide groove away from the second material groove. The pressure block drive assembly is located on the output end of the fixture or the first breaking mechanism and is connected to the pressure block drive. The pressure block drive assembly is used to drive the pressure block to overcome the elastic force of the elastic element and slide towards the second material groove so as to press the pressure block tightly against the right angle plate in the second material groove.

[0009] In a further configuration, the aforementioned pressing block driving assembly includes a guide block, which is located on the output end of the first breaking mechanism and has a guide surface. The guide surface extends from bottom to top toward the pressing block and is used to guide the pressing block to slide toward the second material trough.

[0010] Further, the aforementioned main plate has a positioning hole on the side away from the right-angle plate. The positioning mechanism also includes a positioning pin. The bottom end of the positioning pin is fixed on the fixture, and the top end passes through the second material groove and extends into the first material groove. The top end of the positioning pin is conical and is used to pass through the positioning hole.

[0011] Furthermore, the aforementioned second breaking mechanism includes: The lower pressure rod and the upper pressure rod are located above and below the fixture, respectively. The fixture is provided with a clearance channel that communicates with the second material trough. The lower pressure rod, the upper pressure rod and the clearance channel are all set relative to the position of the steel sheet in the second material trough. Each second material trough has two lower pressure rods and two upper pressure rods. The pressure rod drive assembly is located on the output end of the frame or the first breaking mechanism and is connected to several pressure rods in a transmission manner. The pressure rod drive assembly is used to drive several pressure rods to move towards or away from the corresponding second material trough, so as to drive the two steel sheets in the corresponding second material trough to swing downward relative to the main plate. The upper pressure rod drive assembly is mounted on the frame and is connected to several upper pressure rods. The upper pressure rod drive assembly is used to drive several upper pressure rods to move towards or away from the corresponding second material trough, so as to drive the two steel plates in the corresponding second material trough to swing upward relative to the main plate.

[0012] Further, the aforementioned frame is equipped with a material collection container, which is connected to the clearance channel and is used to hold the broken steel sheets.

[0013] In a further configuration, the aforementioned first breaking mechanism includes a pressure plate, an elastic pressure column, and a pressure plate drive assembly. The pressure plate is positioned above the fixture; the elastic pressure column is positioned on the bottom surface of the pressure plate and is positioned opposite to the position of the main plate in the first material trough; the pressure plate drive assembly is positioned on the frame and is connected to the pressure plate for transmission. The pressure plate drive assembly is used to drive the pressure plate and the elastic pressure column on it to move toward or away from the fixture, so as to press the pressure plate tightly onto the fixture and cause the elastic pressure column to drive the protective steel sheet injection molded part in the first material trough to move downward to the corresponding second material trough, so as to disconnect the connecting rod and the two protective steel sheet injection molded parts.

[0014] Further configuration: the aforementioned elastic pressure column includes a first elastic pressure column, a second elastic pressure column, and a third elastic pressure column. The first and second elastic pressure columns are respectively positioned opposite to the two ends of the main plate in the first material trough. The bottom ends of the first and second elastic pressure columns are provided with flexible blocks for flexible contact with the main plate. The third elastic pressure column is positioned opposite to the positioning pin. The bottom end of the third elastic pressure column is provided with a clearance hole for the positioning pin to be inserted.

[0015] As a further feature, the bottom of the aforementioned first material trough is provided with two elastic pads, which are respectively positioned opposite to the two ends of the connecting rod in the first material trough.

[0016] Furthermore, the aforementioned fixtures are provided in at least two quantities, and each fixture is provided with at least two first material troughs spaced apart.

[0017] (III) Beneficial Effects Compared with the prior art, the scrap breaking device for steel guard plates provided by the present invention has the following beneficial effects: When using the steel sheet breaking device provided by this invention, firstly, the injection-molded steel sheet assembly is placed into the first material groove. Then, the first breaking mechanism presses the two steel sheet injection molded parts of the assembly into the corresponding second material groove, thereby disconnecting the connecting rod from the two steel sheet injection molded parts. Next, the positioning mechanism further fixes the main plate in the second material groove, effectively preventing the main plate from moving during the subsequent steel sheet breaking process, thus ensuring the accuracy and stability of the entire steel sheet breaking operation. At the same time, the second breaking mechanism drives the steel sheet in the second material groove to swing back and forth relative to the main plate, thereby disconnecting the main plate from the two steel sheets and completing the steel sheet breaking operation. Finally, the second breaking mechanism and the first breaking mechanism release the main plate in sequence to remove the main plate and the two steel sheets from the fixture for subsequent steel sheet assembly. As can be seen, through the coordinated operation of various mechanisms and fixtures, this invention can automatically complete the breaking operation of the connecting rod and steel sheet, realizing the automation of the scrap breaking process of the steel sheet injection molding component. Compared with the traditional manual breaking operation, this invention greatly improves the production efficiency of the steel sheet and its injection molded parts, reduces labor costs, and at the same time ensures the stability and accuracy of the breaking process, effectively improving the consistency of product quality. Attached Figure Description

[0018] Figure 1 This is a perspective view of the scrap-breaking device for the protective steel sheet in the embodiment; Figure 2 This is a partial structural cross-sectional view of the fixture, the first breaking mechanism, the second breaking mechanism, and the positioning mechanism in the embodiment; Figure 3 This is a partial structural cross-sectional view of the fixture, the first breaking mechanism, and the positioning mechanism in the embodiment.

[0019] Icon labels: 1. Rack; 2. Fixture; 21. First feed trough; 22. Second feed trough; 23. Slide groove; 24. Clearance channel; 25. Elastic pad; 3. First breaking mechanism; 31. Pressure plate; 311. Clearance through hole; 32. Elastic pressure column; 321. First elastic pressure column; 322. Second elastic pressure column; 323. Third elastic pressure column; 3231. Clearance hole; 324. Flexible block; 33. Pressure plate drive assembly; 4. Second breaking mechanism; 41. Lower pressure rod; 42. Upper pressure rod; 43. Lower pressure rod drive assembly; 44. Upper pressure rod drive assembly; 5. Positioning mechanism; 51. Pressure block; 52. Elastic element; 53. Guide block; 531. Guide surface; 54. Positioning pin. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention provides a scrap breaking device for steel guard sheets, used to break scrap from steel guard sheet injection molding components, solving the problem of how to improve the production efficiency of steel guard sheets and their injection molded parts, as well as the consistency of product quality.

[0022] The steel guard plate injection molding assembly includes two steel guard plate injection molded parts and a connecting rod integrally connected between the two steel guard plate injection molded parts. Each steel guard plate injection molded part includes a main plate and two steel plates integrally connected to both sides of the main plate. Both steel plates are distributed parallel to the main plate.

[0023] Combination Figure 1 and Figure 2 As shown, Figure 1 This is a perspective view of the scrap-breaking device for the protective steel sheet in the embodiment. Figure 2 The figure shows a partial cross-sectional view of the fixture, the first breaking mechanism, the second breaking mechanism, and the positioning mechanism in the embodiment. The steel sheet breaking device includes a frame 1, a fixture 2, a first breaking mechanism 3, a second breaking mechanism 4, and a positioning mechanism 5.

[0024] The fixture 2 is mounted on the frame 1 by means of screwing or welding. The fixture 2 has a first material groove 21 for placing and limiting the injection molding assembly of the protective steel sheet. The bottom of the first material groove 21 has two second material grooves 22. The second material grooves 22 are used to place the injection molded part of the protective steel sheet and limit its main plate.

[0025] The first breaking mechanism 3 is mounted on the frame 1 by means of screwing or welding, and is located above the fixture 2. The first breaking mechanism 3 is used to press the two protective steel plate injection molded parts in the first material groove 21 into the corresponding second material groove 22, so as to disconnect the connecting rod and the two protective steel plate injection molded parts.

[0026] The second breaking mechanism 4 is installed on the output end of the frame 1 and / or the first breaking mechanism 3 by means of screwing or welding. The second breaking mechanism 4 is used to drive the steel sheet in the second material trough 22 to swing back and forth relative to the main plate to break the main plate and the two steel sheets.

[0027] The positioning mechanism 5 is installed on the output end of the fixture 2 and / or the first breaking mechanism 3, and is used to fix the main plate in the second material trough 22.

[0028] When using the steel sheet breaking device described above, firstly, the injection-molded steel sheet assembly is placed into the first material groove 21. Then, the first breaking mechanism 3 presses the two steel sheet injection molded parts of the assembly into the corresponding second material groove 22, thereby disconnecting the connecting rod from the two steel sheet injection molded parts. Next, the positioning mechanism 5 further fixes the main plate in the second material groove 22, effectively preventing the main plate from moving during the subsequent steel sheet breaking process, thus ensuring the accuracy and stability of the entire steel sheet breaking operation. At the same time, the second breaking mechanism 4 drives the steel sheet in the second material groove 22 to swing back and forth relative to the main plate, thereby disconnecting the main plate from the two steel sheets and completing the steel sheet breaking operation. Finally, the second breaking mechanism 4 and the first breaking mechanism 3 release the main plate in sequence so that the main plate and the two steel sheets can be removed from the fixture 2 for subsequent steel sheet assembly. As can be seen, through the coordinated operation of various mechanisms and fixture 2, the present invention can automatically complete the breaking operation of the connecting rod and steel sheet, realizing the automated operation of the scrap breaking process of the steel sheet injection molding component. Compared with the traditional manual breaking operation, the present invention greatly improves the production efficiency of the steel sheet and its injection molding parts, reduces labor costs, and at the same time ensures the stability and accuracy of the breaking process, effectively improving the consistency of product quality.

[0029] The first material groove 21 can be identical in shape and size to the steel plate injection molding assembly. Thus, placing the steel plate injection molding assembly into the first material groove 21 will limit its movement. Alternatively, the first material groove 21 can also limit only the connecting rod of the steel plate injection molding assembly, thereby limiting its movement. The second material groove 22, which accommodates the main plate, has the same shape and size as the main plate. Thus, pressing the steel plate injection molding part into the second material groove 22 will limit its movement. Combined with the positioning mechanism 5, it can completely position the main plate, effectively preventing movement and ensuring the accuracy of subsequent scrap removal.

[0030] See Figure 2 and Figure 3 As shown, Figure 3This is a partial structural cross-sectional view of the fixture, the first breaking mechanism, and the positioning mechanism in one embodiment. In one implementation of the positioning mechanism 5, the positioning mechanism 5 includes a pressure block 51, an elastic element 52, and a pressure block driving assembly. A right-angled plate is integrally connected to one side of the main plate. The fixture 2 has a sliding groove 23 communicating with the second material groove 22. The pressure block 51 is slidably connected to the sliding groove 23 and is positioned opposite to the right-angled plate in the second material groove 22. The two ends of the elastic element 52 are respectively connected to the fixture 2 and the pressure block 51 by bonding or pressing. The elastic element 52 has a spring force that drives the pressure block 51 to slide along the sliding groove 23 away from the second material groove 22. The pressure block driving assembly is provided on the output end of the fixture 2 or the first breaking mechanism 3 by screwing or welding, and is drively connected to the pressure block 51. The pressure block driving assembly is used to drive the pressure block 51 to overcome the spring force of the elastic element 52 and slide towards the second material groove 22, so as to press the pressure block 51 tightly against the right-angled plate in the second material groove 22. Thus, after the first breaking mechanism 3 presses the main plate of the steel sheet injection molded part down to the bottom of the second material groove 22, the positioning mechanism 5, through the cooperation of the pressure block 51 and the pressure block drive assembly, can press the right-angle plate tightly between the pressure block 51 and the inner wall of the second material groove 22, thereby further fixing the main plate stably at the bottom of the second material groove 22, effectively preventing the main plate from moving during the steel sheet breaking process, ensuring the smooth progress of the breaking operation, and improving the product qualification rate. After the main plate and the steel sheet are separated, the pressure block drive assembly releases the pressure block 51, and the pressure block 51 can return to its original position under the elastic force of the elastic element 52, releasing the main plate so that the main plate can be removed from the fixture 2 later.

[0031] The aforementioned elastic element 52 can be an existing tension spring or compression spring, etc.

[0032] See Figure 2 As shown, in one embodiment of the pressure block driving assembly, the pressure block driving assembly includes a guide block 53. The guide block 53 is disposed on the output end of the first breaking mechanism 3 by means of screwing or welding, and the guide block 53 has a guide surface 531. The guide surface 531 extends from bottom to top toward the pressure block 51 and is used to guide the pressure block 51 to slide toward the second material groove 22. Thus, while the first breaking mechanism 3 presses the main plate of the steel plate injection molded part down to the bottom of the second material groove 22, the first breaking mechanism 3 inserts the guide block 53 into the slide groove 23. The guide block 53 abuts against the pressure block 51 through the guide surface 531, and uses the guiding effect of the guide surface 531 to drive the pressure block 51 to slide toward the second material groove 22, thereby achieving precise and stable pressing of the pressure block 51 onto the right-angle plate of the main plate. It can be seen that the pressing block drive assembly uses the first breaking mechanism 3 as the power source. This drive design not only reduces the drive cost, but also has the advantage of automation. While the steel plate injection molded part is pressed into the second material groove 22, it can automatically perform the fixing action of the main plate. The whole process is coherent, orderly, efficient and precise.

[0033] In addition to the above-described embodiments, the pressing block drive assembly can also use existing linear displacement drive mechanisms such as telescopic cylinders or telescopic poles, which are installed on the fixture 2 by means of screwing or welding. When its output end abuts against the pressing block 51, it can directly push the pressing block 51 to slide toward the second material trough 22.

[0034] See Figure 2 and Figure 3 As shown, based on the above-described embodiment of positioning mechanism 5, positioning mechanism 5 further includes a positioning pin 54. A positioning hole is located on the side of the main plate away from the right-angle plate. The bottom end of the positioning pin 54 is fixed to the fixture 2 by means of inlay or bonding. The top end of the positioning pin 54 penetrates the second material groove 22 and extends into the first material groove 21. The top end of the positioning pin 54 is conical. The positioning pin 54 is used to penetrate the positioning hole. Thus, the positioning pin 54 provides an additional positioning point for the main plate, working in conjunction with the pressure block 51 to fix the main plate from multiple directions, greatly enhancing the stability of the main plate during the breaking process, effectively preventing the main plate from shifting or shaking due to force, and improving the accuracy of the breaking operation and the consistency of product quality. In addition, the conical positioning pin 54 can easily pass through the positioning hole and guide the steel plate injection molded part to be accurately pressed from the first material groove 21 into the second material groove 22, thereby ensuring that when the main plate is pressed into the bottom of the second material groove 22, the position of the pressing block 51 and the right angle plate of the main plate are accurately aligned.

[0035] See Figure 1 and Figure 2As shown, in one embodiment of the second breaking mechanism 4, the second breaking mechanism 4 includes a lower pressing rod 41, an upper pressing rod 42, a lower pressing rod drive assembly 43, and an upper pressing rod drive assembly 44. The lower pressing rod 41 and the upper pressing rod 42 are located above and below the fixture 2, respectively. The fixture 2 has a clearance channel 24 communicating with the second material trough 22. The lower pressing rod 41, the upper pressing rod 42, and the clearance channel 24 are all arranged relative to the positions of the steel sheets in the second material trough 22. Each second material trough 22 corresponds to two lower pressing rods 41 and two upper pressing rods 42. The lower pressing rod drive assembly 43 is provided on the output end of the frame 1 or the first breaking mechanism 3 by means of screwing or welding, and its output end is connected to several lower pressing rods 41 by means of screwing or welding. The lower pressing rod drive assembly 43 is used to drive several lower pressing rods 41 to move toward or away from the corresponding second material trough 22, so as to drive the two steel sheets in the corresponding second material trough 22 to swing downward relative to the main plate. The upper pressure rod drive assembly 44 is mounted on the frame 1 by screwing or welding, and its output end is connected to several upper pressure rods 42 by screwing or welding. The upper pressure rod drive assembly 44 drives the several upper pressure rods 42 to move towards or away from the corresponding second material groove 22, thereby causing the two steel sheets in the corresponding second material groove 22 to swing upward relative to the main plate. In this way, the second breaking mechanism 4, through the cooperation of the lower pressure rod drive assembly 43 and the upper pressure rod drive assembly 44, drives the lower pressure rod 41 and the upper pressure rod 42 to move alternately, realizing the up-and-down reciprocating swing of the steel sheet relative to the main plate, thereby successfully disconnecting the connection between the main plate and the steel sheet. This design simulates the action of manual breaking, but is more precise, stable and efficient, and can quickly complete the breaking operation of a large number of protective steel sheets, significantly improving the production efficiency of protective steel sheets and their injection molded parts. Among them, the clearance channel 24 can provide clearance space for the up-and-down reciprocating action of the lower pressure rod 41 and the upper pressure rod 42, as well as the swing of the steel sheet, to ensure the normal operation of the steel sheet breaking operation.

[0036] Both the lower pressure rod drive assembly 43 and the upper pressure rod drive assembly 44 mentioned above can use existing linear displacement drive mechanisms such as telescopic cylinders or ball screw linear modules.

[0037] Based on the above embodiment, the frame 1 has a collection container (not shown in the figure). The collection container is connected to the clearance channel 24 and is used to hold the broken steel sheets. In this way, as the steel sheets are broken off, they can automatically fall into the collection container through the clearance channel 24 under their own gravity. This design can automatically and promptly collect the broken steel sheets, preventing them from scattering around the device, facilitating subsequent cleaning and processing, and saving manpower, further reducing labor costs.

[0038] See Figure 1 and Figure 2As shown, in one embodiment of the first breaking mechanism 3, the first breaking mechanism 3 includes a pressure plate 31, an elastic pressure column 32, and a pressure plate drive assembly 33. The pressure plate 31 is located above the fixture 2. The elastic pressure column 32 is mounted on the bottom surface of the pressure plate 31 and is positioned opposite to the main plate in the first material trough 21. The pressure plate drive assembly 33 is mounted on the frame 1 by means of screwing or welding, and its output end is connected to the pressure plate 31 by means of screwing or welding. The pressure plate drive assembly 33 is used to drive the pressure plate 31 and the elastic pressure column 32 thereon to move toward or away from the fixture 2, so as to press the pressure plate 31 tightly onto the fixture 2, and cause the elastic pressure column 32 to drive the protective steel sheet injection molded parts in the first material trough 21 to move downward to the corresponding second material trough 22, so as to disconnect the connecting rod and the two protective steel sheet injection molded parts. Thus, when the first breaking mechanism 3 is used, the pressure plate drive assembly 33 drives the pressure plate 31 and its elastic pressure column 32 to move towards the fixture 2, pressing the pressure plate 31 tightly against the surface of the fixture 2. At the same time, the elastic pressure column 32 is inserted into the first material groove 21. The elastic pressure column 32 presses down on the main plate of the protective steel sheet injection molded part in the first material groove 21, thereby driving the entire protective steel sheet injection molded part to move downward until the main plate is pressed tightly against the bottom of the corresponding second material groove 22. The elastic pressure column 32 is elastic and can provide just the right pressure during the pressing of the protective steel sheet injection molded part, ensuring that the protective steel sheet injection molded part can be pressed accurately into place. In addition, when used in conjunction with the pressure plate 31, it can also effectively prevent the main plate from being damaged due to overpressure.

[0039] The aforementioned pressure plate drive assembly 33 can use existing linear displacement drive mechanisms such as telescopic cylinders or ball screw linear modules. In this embodiment, the aforementioned lower pressure rod drive assembly 43 is screwed onto the pressure plate 31, as shown below. Figure 2 As shown, the pressure plate 31 has a clearance through hole 311 for the lower pressure rod 41 to pass through.

[0040] See Figure 2 and Figure 3As shown, in one embodiment of the elastic pressure column 32, the elastic pressure column 32 includes a first elastic pressure column 321, a second elastic pressure column 322, and a third elastic pressure column 323. The first elastic pressure column 321 and the second elastic pressure column 322 are respectively positioned opposite to the two ends of the main plate in the first material groove 21. The bottom ends of both the first elastic pressure column 321 and the second elastic pressure column 322 are provided with flexible blocks 324 for flexible contact with the main plate by means of adhesive bonding. The third elastic pressure column 323 is positioned opposite to the positioning pin 54. The bottom end of the third elastic pressure column 323 has a clearance hole 3231 for the positioning pin 54 to be inserted. In this way, the first elastic pressure column 321 and the second elastic pressure column 322 correspond to the two ends of the main plate respectively, and with the cooperation of their bottom flexible blocks 324, pressure can be applied evenly in a flexible contact manner, avoiding damage to the main plate due to rigid force, and ensuring the structural integrity and surface quality of the main plate during processing. The third elastic pressure post 323 is opposite to the positioning pin 54 and is provided with a clearance hole 3231, which can effectively press down on the area around the positioning pin 54 without interfering with the function of the positioning pin 54.

[0041] The aforementioned first elastic pressure column 321, second elastic pressure column 322, and third elastic pressure column 323 can all be composed of a sliding rod and a compression spring. The sliding rod is slidably connected to the pressure plate 31, and the compression spring is sleeved on the sliding rod, with its two ends abutting against the sliding rod and the pressure plate 31 respectively. The compression spring has an elastic force that drives the sliding rod to slide downwards. Thus, when the sliding rod pushes the main plate into the bottom of the second material trough 22, it will be subjected to the reaction force exerted by the bottom of the second material trough 22 on the main plate, causing the sliding rod to slide upwards, overcoming the elastic force of the compression spring, and effectively preventing the sliding rod from continuing to move downwards with the pressure plate 31, thereby damaging the main plate. When the pressure rod drive assembly 43 drives the pressure plate 31 to move away from the fixture 2 and releases the main plate, the sliding rod returns to its original position under the action of the compression spring.

[0042] The aforementioned flexible block 324 can be made of existing flexible materials such as rubber pads or cotton pads.

[0043] See Figure 2 As shown, based on the above-described first breaking mechanism 3 embodiment, two elastic pads 25 are provided at the bottom of the first material groove 21 by means of bonding or embedding. The two elastic pads 25 are respectively positioned opposite to the two ends of the connecting rod in the first material groove 21. In this way, the elastic pads 25 can buffer the two ends of the connecting rod when the first breaking mechanism 3 presses down, effectively dispersing and weakening the impact force generated during the pressing process, preventing the connecting rod from breaking accidentally in the middle due to excessive local stress, ensuring that the connection between the connecting rod and the molded steel plate can be accurately disconnected according to the preset requirements, and further improving the quality and stability of the breaking operation.

[0044] The aforementioned elastic pad 25 can be made of existing materials with elastic cushioning properties, such as rubber or memory foam.

[0045] See Figure 1 As shown, based on any of the above embodiments, there are at least two fixtures 2, and each fixture 2 has at least two first material slots 21 spaced apart. Thus, this device can simultaneously perform scrap removal operations on multiple steel guard plate injection molding assemblies, achieving mass production and further improving the production efficiency of steel guard plates and their injection molded parts, meeting the needs of large-scale production.

[0046] In this embodiment, there are two fixtures 2, each with multiple first material slots 21. The number of positioning mechanisms 5 is the same as the number of second material slots 22, and they are arranged in a one-to-one correspondence. The number of lower pressure rods 41, upper pressure rods 42, and elastic pressure columns 32 is also increased accordingly to the number of second material slots 22. However, the number of pressure plate drive assemblies 33 is the same as the number of fixtures 2. Each fixture 2 corresponds to two lower pressure rod drive assemblies 43 and two upper pressure rod drive assemblies 44, which greatly saves drive costs.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scrap breaking device for steel guard sheets, used for scrap breaking of steel guard sheet injection molding components, the steel guard sheet injection molding components comprising two steel guard sheet injection molding parts and a connecting rod integrally connected between the two steel guard sheet injection molding parts, each steel guard sheet injection molding part comprising a main plate and two steel sheets integrally connected to both sides of the main plate, characterized in that, The scrap breaking device for the steel guard plate includes: frame; A fixture is provided on the frame and has a first material groove for placing and limiting the steel plate injection molding assembly. The bottom of the first material groove has two second material grooves, which are used to place the steel plate injection molding part and limit its main plate. The first breaking mechanism is provided on the frame and located above the fixture. The first breaking mechanism is used to press the two protective steel sheet injection molded parts in the first material groove into the corresponding second material groove to disconnect the connecting rod and the two protective steel sheet injection molded parts. The second breaking mechanism is located on the output end of the frame and / or the first breaking mechanism, and is used to drive the steel sheet in the second material trough to swing back and forth relative to the main plate to break the main plate and the two steel sheets. A positioning mechanism is provided on the output end of the fixture and / or the first breaking mechanism, and is used to fix the main plate in the second material trough.

2. The scrap-breaking device for the steel guard plate according to claim 1, wherein a right-angle plate is provided on one side of the main plate, characterized in that, The fixture is provided with a sliding groove communicating with the second material trough; the positioning mechanism includes: The pressure block is slidably connected to the chute and is positioned opposite to the right-angle plate in the second trough. An elastic element has two ends connected to the fixture and the pressure block, respectively, and the elastic element has a spring force that drives the pressure block to slide along the groove away from the second material groove; A pressure block driving assembly is disposed on the output end of the fixture or the first breaking mechanism and is connected to the pressure block in a transmission manner. The pressure block driving assembly is used to drive the pressure block to overcome the elastic force of the elastic element and slide toward the second material groove so as to press the pressure block tightly onto the right-angle plate in the second material groove.

3. The scrap breaking device for steel guard plates according to claim 2, characterized in that, The pressing block drive assembly includes a guide block, which is disposed on the output end of the first breaking mechanism and has a guide surface. The guide surface extends from bottom to top toward the pressing block and is used to guide the pressing block to slide toward the second material trough.

4. The scrap-breaking device for the steel guard plate according to claim 2, wherein a positioning hole is provided on the side of the main plate away from the right-angle plate, characterized in that, The positioning mechanism also includes a positioning pin, the bottom end of which is fixed to the fixture, the top end of which passes through the second material groove and extends into the first material groove, and the top end of the positioning pin is conical, and the positioning pin is used to pass through the positioning hole.

5. The scrap-breaking device for steel guard plates according to any one of claims 1-4, characterized in that, The second breaking mechanism includes: The lower pressure rod and the upper pressure rod are located above and below the fixture, respectively. The fixture is provided with a clearance channel that communicates with the second material trough. The lower pressure rod, the upper pressure rod and the clearance channel are all arranged relative to the position of the steel sheet in the second material trough. Each second material trough has two lower pressure rods and two upper pressure rods. A pressure rod drive assembly is located on the output end of the frame or the first breaking mechanism and is connected to a plurality of pressure rods in a transmission manner. The pressure rod drive assembly is used to drive the plurality of pressure rods to move toward or away from the corresponding second material trough, so as to drive the two steel sheets in the corresponding second material trough to swing downward relative to the main plate. An upper pressure rod drive assembly is mounted on the frame and is connected to several upper pressure rods in a transmission manner. The upper pressure rod drive assembly is used to drive several upper pressure rods to move toward or away from the corresponding second material trough, so as to cause two steel plates in the corresponding second material trough to swing upward relative to the main plate.

6. The scrap breaking device for steel guard plates according to claim 5, characterized in that, The frame is equipped with a material collection container, which is connected to the clearance channel and is used to hold the broken steel sheet.

7. The scrap-breaking device for steel guard plates according to any one of claims 1, 2, 3, 4 and 6, characterized in that, The first breaking mechanism includes a pressure plate, an elastic pressure column, and a pressure plate driving assembly. The pressure plate is located above the fixture. The elastic pressure column is located on the bottom surface of the pressure plate and is positioned opposite to the main plate in the first material trough. The pressure plate driving assembly is located on the frame and is connected to the pressure plate for transmission. The pressure plate driving assembly is used to drive the pressure plate and the elastic pressure column on it to move towards or away from the fixture, so as to press the pressure plate tightly onto the fixture and cause the elastic pressure column to drive the protective steel sheet injection molded part in the first material trough to move downward to the corresponding second material trough, so as to disconnect the connecting rod and the two protective steel sheet injection molded parts.

8. The scrap breaking device for steel guard plates according to claim 7, characterized in that, The elastic pressure column includes a first elastic pressure column, a second elastic pressure column, and a third elastic pressure column. The first elastic pressure column and the second elastic pressure column are respectively positioned opposite to the two ends of the main plate in the first material trough. The bottom ends of the first elastic pressure column and the second elastic pressure column are provided with flexible blocks for flexible contact with the main plate. The third elastic pressure column is positioned opposite to the positioning pin. The bottom end of the third elastic pressure column is provided with a clearance hole for the positioning pin to be inserted.

9. The scrap breaking device for steel guard plates according to claim 8, characterized in that, The bottom of the first material trough is provided with two elastic pads, which are respectively positioned opposite to the two ends of the connecting rod in the first material trough.

10. The scrap-breaking device for steel guard plates according to any one of claims 1, 2, 3, 4, 6, 8, and 9, characterized in that, The number of fixtures is at least two, and each fixture is provided with at least two first material troughs spaced apart.

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