Enhanced positioning system of metal strip cutting unit for module shell injection molding production

Abstract

The invention discloses an enhanced positioning system of a module shell injection molding production metal material strip cutting unit, which comprises a workbench, a plurality of cutting stations, a plurality of positioning devices, a plurality of positioning devices and a plurality of positioning devices, wherein the upper end face of the workbench is provided with a plurality of cutting stations at intervals; the bottom plate frame is horizontally fixed to the cutting stations on the upper end face of the workbench. The multiple upper pressing plates are evenly arranged in the length direction of the bottom plate frame, and each cutting unit is assembled on the upper end face of the corresponding bottom plate frame in a front-back mode; two vibration shaking belt units are arranged below each cutting unit; the positioning mechanism is vertically arranged on the lower end face of the bottom plate frame; the two upper pressing plates are symmetrically installed above the material belt groove, each upper pressing plate is provided with the corresponding vibration belt shaking unit, the two vibration belt shaking units can be matched with each other to provide high-frequency micro-amplitude vibration in the horizontal direction for the material belt, and therefore the static friction force between the metal material belt and the material belt groove structure is effectively broken; and the positioning mechanism can be in adaptive contact with the positioning hole, fine positioning is realized, and the cutting precision is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of automated equipment, and specifically relates to an enhanced positioning system for a metal strip cutting unit in the injection molding production of a module housing. Background Art

[0002] During the production of module housings, especially for the module housings with built-in speakers in mobile phones, cutting the metal strip is a common process. The prior art usually relies on the edge of the strip or simple positioning holes for positioning and then cutting. However, due to the possible width tolerance and deformation of the strip itself, cumulative errors may occur during the feeding process, as well as the vibration or clearance of the equipment itself, resulting in unstable cutting accuracy. Especially in precision applications where the cut surface needs to be below the material surface ("engraved") and no burrs are allowed (such as parts that need to be injection molded or precisely assembled subsequently), the existing positioning methods are difficult to continuously ensure the required dimensional accuracy and cut quality, which may lead to a high rejection rate or affect subsequent processes.

[0003] Therefore, it is necessary to provide an enhanced positioning system for a metal strip cutting unit in the injection molding production of a module housing to solve the problems raised in the above background art. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: An enhanced positioning system for a metal strip cutting unit in the injection molding production of a module housing, which includes:

[0005] A workbench, on the upper end surface of which a plurality of cutting stations are arranged at intervals. A feeding wheel is rotatably arranged at each cutting station on one side of the workbench, and a guide plate is fixed on the upper end surface of the workbench near the feeding wheel.

[0006] A bottom plate frame is horizontally fixed at each cutting station on the upper end surface of the workbench. A through strip groove is provided in the middle of the bottom plate frame along its length direction.

[0007] A plurality of upper pressure plates are provided and evenly arranged along the length direction of the bottom plate frame. The plurality of upper pressure plates are symmetrically distributed on both sides above the strip groove, and a belt pressing device is assembled on each upper pressure plate.

[0008] A buckle mechanism is symmetrically fixed on the bottom plate frame. Each buckle mechanism is arranged corresponding to the upper pressure plate, and is used to tightly buckle the upper pressure plate on the surface of the bottom plate frame.

[0009] Multiple groups of cutting units, each group of cutting units consists of several cutting units, and each group of cutting units is vertically assembled front and back on the upper end surface of each bottom plate frame.

[0010] Two vibration strip shaking units are arranged below each cutting unit. The two vibration strip shaking units are symmetrically distributed on the upper pressure plates on both sides of the strip groove.

[0011] The positioning mechanism is vertically arranged on the lower end surface of the bottom plate frame and is located directly below the cutting unit.

[0012] Furthermore, preferably, both of the two vibrating tape units below the cutting unit are arranged at a distance of at least two tape pitches away from the positioning mechanism.

[0013] Furthermore, preferably, the vibrating tape unit includes:

[0014] Two substrates arranged parallel to each other up and down. A plurality of fixing rods are vertically fixed on the upper substrate. One end of the fixing rod penetrates through the lower substrate and is slidably connected to the upper pressing plate;

[0015] The fixing plate, one end of which is horizontally fixed between the two substrates, and the other end of which extends outside the substrate. A main gear disk is rotatably arranged at one end of the fixing plate located between the substrates;

[0016] The driven gear is rotatably connected to the other side of the fixing plate, and the driven gear and the main gear disk are connected and driven by a transmission belt;

[0017] The positioning guide pin is vertically rotatably connected below the fixing plate and is coaxially arranged with the driven gear. The upper end of the positioning guide pin is fixed to the driven gear, and the positioning guide pin adopts a two-stage rotation structure;

[0018] The eccentric blocks are axially distributed at the rotating upper end of the positioning guide pin;

[0019] The electric lifter is installed on the upper pressing plate, and the output end of the electric lifter is fixed to the lower substrate.

[0020] Furthermore, preferably, a guide cavity is provided at the rotating lower end of the positioning guide pin. A piston rod is slidably connected in the guide cavity. A bladder sleeve is sleeved outside the rotating lower end of the positioning guide pin, and an air hole is provided on one side of the guide cavity. The bladder sleeve is communicated with the guide cavity through the air hole;

[0021] A liquid guide seat is installed above the driven gear on the fixing plate. A guide plug rod is slidably and sealingly connected in the liquid guide seat. The lower end of the guide plug rod slides into the positioning guide pin and is connected to the piston rod.

[0022] Furthermore, preferably, the vibration frequencies and vibration directions of the two vibrating tape units are exactly the same.

[0023] Furthermore, preferably, the positioning mechanism includes:

[0024] The positioning column is vertically installed below the bottom plate frame. A positioning hole is provided in the bottom plate frame. The upper end of the positioning column is slidably inserted into the positioning hole in a clearance fit manner;

[0025] A lifting driver is installed on the lower end surface of the bottom frame, and a power output end of the lifting driver is connected to the positioning column;

[0026] A push rod is coaxially slidably arranged in the positioning column, a closed air pressure chamber is arranged at the lower part of the positioning column, and the lower end of the push rod extends downward to form a piston structure that forms a sealing match with the closed air pressure chamber;

[0027] The side dividing plates are multiple and distributed around the circumference, each of the side dividing plates is symmetrically fixed with a guide shaft, and a radial sliding pair is formed through the guide shaft and the positioning column;

[0028] Guide plates are arranged corresponding to the side dividing plates, and the guide plates are vertically assembled in the positioning columns and fixed to the side dividing plates;

[0029] A top shaft is arranged as a conical structure and is fixed to the upper end of the propulsion rod, and the top shaft is in contact with each of the guide plates.

[0030] Furthermore, preferably, the contact surface between the top shaft and the guide plate is a complementary inclined surface structure, and a pre-tightened return spring is sleeved on the outer periphery of the top shaft, so that each side dividing plate can maintain a retracted state by the elastic force of the return spring in the absence of external force, and form a continuous cylindrical surface with the outer surface of the positioning column.

[0031] Further, as a preference, an axial air guide channel is integrated at the bottom of the positioning column, and the air guide channel is connected with the closed air pressure chamber to form a through-type air pressure compensation circuit;

[0032] A through opening is provided on the side wall of the positioning column, and a limit pin is vertically fixed on the push rod. A spirally adjustable limit ring is installed on the positioning column above the through opening. The limit ring is driven by a threaded pair to move along the axial direction of the positioning column, forming a mechanical locking mechanism for the movement stroke of the limit pin.

[0033] Further, preferably, the belt pressing device comprises:

[0034] An outer fixing plate is fixed on the upper pressing plate, and one side of the outer fixing plate is rotatably connected to a transfer arm;

[0035] A propulsion cylinder is mounted on the outer fixing plate, and an output end of the propulsion cylinder is hinged to one end of the transfer arm;

[0036] The rubber pressure plate is horizontally fixed on the other end of the transfer arm.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] In the present invention, the metal strip can be horizontally transported through the strip slot of the bottom plate frame so that the cutting unit can perform cutting processing on it in sequence. Two upper pressing plates are symmetrically installed above the strip slot, and a vibration strip shaking unit is arranged on each upper pressing plate. The two vibration strip shaking units can cooperate with each other to provide high-frequency micro-amplitude vibration in the horizontal direction to the strip, thereby effectively breaking the static friction between the metal strip (especially thin materials or materials with a coating on the surface) and the strip slot structure, preventing the metal strip from being locally adhered due to electrostatic adsorption, oil film tension or vacuum effect, thus causing difficulty in accurately repositioning and adjusting subsequently; and the mainly arranged positioning mechanism can control the positioning column to be docked with the positioning hole of the metal strip through the lifting drive to achieve rough positioning. Then, when the vibration strip shaking unit stops working, the push rod in the positioning column controls the uniform expansion of multiple side plates on its side wall, so as to be adaptively contacted with the positioning hole and achieve fine positioning, completely eliminating the positioning error gap and ensuring the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 is a schematic diagram of the structure of the single-station cutting unit of the present invention;

[0041] Figure 3 is a schematic diagram of the installation distribution of the positioning mechanism and the vibration strip shaking unit of the present invention;

[0042] Figure 4 is a schematic diagram of the structure of the vibration strip shaking unit of the present invention;

[0043] Figure 5 is a schematic diagram of the internal structure of the positioning guide pin of the present invention;

[0044] Figure 6 is a schematic diagram of the structure of the positioning mechanism of the present invention;

[0045] Figure 7 is Figure 6 a schematic enlarged view of the structure at A in

[0046] Figure 8 is a schematic diagram of the structure of the positioning mechanism of the present invention;

[0047] In the figure: 1. workbench; 11. feeding wheel; 12. material guide plate; 13. cutting unit; 2. bottom plate frame; 21. material belt groove; 22. upper pressure plate; 23. buckle plate mechanism; 3. positioning mechanism; 31. positioning column; 32. through hole; 33. propulsion rod; 34. side dividing plate; 35. guide shaft; 36. guide plate; 37. top shaft; 38. air guide channel; 39. limit pin; 310. limit ring; 4. vibration belt unit; 41. base plate; 42. fixing rod; 43. fixing plate; 44. main gear disc; 45. driven gear; 46. eccentric block; 5. positioning mechanism; 51. outer fixing plate; 52. transfer arm; 53. propulsion cylinder; 54. rubber pressure plate; 6. positioning guide pin; 61. guide cavity; 62. piston rod; 63. bag sleeve; 64. liquid guide seat; 65. guide plug rod. DETAILED DESCRIPTION

[0048] See also Figures 1 - 8 In an embodiment of the present invention, an enhanced positioning system for a metal strip cutting unit produced by injection molding of a module housing comprises:

[0049] A workbench 1, on the upper end surface of which a plurality of cutting stations are arranged at intervals, a feeding wheel 11 is rotatably provided at each cutting station on one side of the workbench 1, and a guide plate 12 is fixed on one side of the upper end surface of the workbench 1 close to the feeding wheel 11;

[0050] The bottom plate frame 2 is horizontally fixed at each cutting station on the upper end surface of the workbench 1. A through-type material belt slot 21 is provided in the middle of the bottom plate frame 2 along its length direction. The metal material belt conveyed in the guide plate 12 can be horizontally transmitted through the material belt slot 21.

[0051] The upper pressing plates 22 are arranged in multiple numbers and are evenly arranged along the length direction of the bottom plate frame 2. The upper pressing plates 22 are symmetrically distributed on both sides above the strip groove 21, so as to effectively prevent the metal strip from deviating during transmission. Each of the upper pressing plates 22 is also equipped with a strip pressing device 5.

[0052] The buckle plate mechanisms 23 are symmetrically fixed on the bottom plate frame 2, and each of the buckle plate mechanisms 23 is arranged in a one-to-one correspondence with the upper pressing plate 22, and is used to buckle the upper pressing plate 22 tightly against the surface of the bottom plate frame 2;

[0053] A plurality of groups of cutting units 13, each group of the cutting units 13 is composed of a plurality of cutting units 13, and the cutting units 13 of each group are respectively vertically mounted on the upper end surface of each of the bottom plate frames 2, and the cutting units 13 are used to cut each segment of the metal strip after positioning;

[0054] Two vibration belt shaking units 4 are arranged below each cutting unit 13, and the two vibration belt shaking units 4 are centrally symmetrically distributed on the upper pressing plates 22 on both sides of the material belt groove 21;

[0055] The positioning mechanism 3 is vertically arranged at the lower end surface of the bottom plate frame 2 and is located directly below the cutting unit 13. During the transmission and positioning of the metal strip, generally, the positioning holes on the metal strip can be accurately positioned directly through the positioning mechanism 3. After the metal strip is transmitted more than 4-6 pitches, the vibration belt shaking unit 4 can provide high-frequency micro-amplitude vibration in the horizontal direction to re-precisely position the metal strip, realizing the timing coupling of efficient positioning and intelligent vibration position finding of the metal strip, and ensuring the cutting efficiency and positioning accuracy. In special use, the vibration belt shaking unit 4 can perform vibration reset on each section of the metal strip. Although it prolongs the overall duration of the positioning process, it can significantly improve the positioning accuracy and reduce errors in subsequent processing.

[0056] After the positioning is completed, the belt pressing device 5 can tightly fix and position the metal strip to avoid displacement during cutting.

[0057] In this embodiment, both of the two vibration belt shaking units 4 below the cutting unit 13 are arranged at least two strip pitches away from the positioning mechanism to maintain a safe working distance and avoid material fatigue or microcracks caused by alternating stress induced by vibration.

[0058] As a preferred embodiment, the vibration belt shaking unit 4 includes:

[0059] Substrates 41, two of which are arranged parallel to each other up and down. A plurality of fixing rods 42 are vertically fixed on the upper substrate 41. One end of the fixing rod 42 penetrates into the lower substrate 41 and is slidably connected to the upper pressing plate 22.

[0060] Fixing plate 43, one end of which is horizontally fixed between the two substrates 41, and the other end extends outside the substrates 41. A main gear disk 44 is rotatably arranged at one end of the fixing plate 43 between the substrates 41.

[0061] Driven gear 45, rotatably connected to the other side of the fixing plate 43. The driven gear 45 is connected and driven by a transmission belt with the main gear disk 44.

[0062] Positioning guide pin 6, vertically rotatably connected below the fixing plate 43 and coaxially arranged with the driven gear 45. The upper end of the positioning guide pin 6 is fixed to the driven gear 6. Thus, during the rotation of the main gear disk 44, it can drive the driven gear 6 to rotate synchronously through the transmission belt. At this time, the positioning guide pin 6 below the driven gear 6 moves accordingly. The positioning guide pin 6 adopts a two-stage rotation structure. Therefore, the rotating upper end of the positioning guide pin 6 can rotate synchronously with the driven gear 6, while its lower end is in a non-rotating state.

[0063] Eccentric block 46, axially distributed on the rotating upper end of the positioning guide pin 6, so that its overall centrifugal vibration effect can be achieved during the continuous rotation of the positioning guide pin 6.

[0064] An electric lifter (not shown) is mounted on the upper pressing plate 22, and the output end of the electric lifter is fixed to the base plate 41 below, and is used to drive and control the positioning guide pin 6 to extend downward into the positioning hole of the metal strip or to detach from the positioning hole.

[0065] In this embodiment, a guide cavity 61 is provided at the rotating lower end of the positioning guide needle 6, and a piston rod 62 is slidably connected in the guide cavity 61. A bag sleeve 63 is provided on the outer cover of the rotating lower end of the positioning guide needle 6, and an air hole is opened on one side of the guide cavity 61. The bag sleeve 63 is connected to the guide cavity 61 through the air hole, so that the piston rod 62 can push the airflow in the guide cavity 61 into the bag sleeve 63 when sliding up and down, so that the bag sleeve 63 expands outward;

[0066] The fixing plate 43 is provided with a liquid guide seat 64 above the driven tooth 45, and a guide plug rod 65 is sealingly and slidably connected inside the liquid guide seat 64, and the lower end of the guide plug rod 65 slides into the positioning guide pin 6 and is connected to the piston rod 62. Specifically, when the electric lifter drives the positioning guide pin 6 to gradually slide into the positioning hole of the metal strip, the bag sleeve 63 can completely penetrate the positioning hole, and the piston rod 62 pushes the airflow in the guide cavity 61 into the bag sleeve 63 through the upward sliding of the guide plug rod 65 (the guide plug rod 65 does not rotate with the rotating upper end of the positioning guide pin 6), and the bag sleeve 63 gradually expands and contacts the inner wall of the positioning hole, and then the driven tooth 6 can be driven by the rotation of the main toothed disc 44 to rotate the rotating upper section of the positioning guide pin 6, and the positioning guide pin 6 generates high-frequency micro-amplitude vibration as a whole, so that the positioning guide pins 6 in the two vibration shaking belt units 4 can cooperate with each other to push and position the metal strip horizontally, thereby realizing accurate resetting of the metal strip.

[0067] In this embodiment, the vibration frequencies and vibration directions of the two vibration belt units 4 are completely the same.

[0068] In this embodiment, the positioning mechanism 3 includes:

[0069] The positioning column 31 is vertically installed below the bottom plate frame 2. A through hole 32 is opened in the bottom plate frame 2. The upper end of the positioning column 31 is slidably inserted into the through hole 32 in a clearance fit manner.

[0070] A lifting driver (not shown in the figure) is installed on the lower end surface of the bottom plate frame 2. The power output end of the lifting driver is connected to the positioning column 31, and is used to drive and control the positioning column 31 to slide upward to the outside of the through hole 32 so as to contact with the positioning hole of the metal strip;

[0071] The push rod 33 is coaxially slidably disposed in the positioning column 31. A sealed air pressure chamber is disposed at the lower part of the positioning column 31. The lower end of the push rod 33 extends downward to form a piston structure that forms a sealing fit with the sealed air pressure chamber.

[0072] There are multiple side dividing plates 34 distributed around the circumference, and each of the side dividing plates 34 is symmetrically fixed with a guide shaft 35, and a radial sliding pair is formed with the positioning column 31 through the guide shaft 35;

[0073] Guide plates 36 are provided corresponding to the side dividing plates 34 , and the guide plates 36 are vertically assembled in the positioning columns 31 and fixed to the side dividing plates 34 ;

[0074] The top shaft 37 is set to a conical structure and fixed to the upper end of the push rod 33. The top shaft 37 is in contact with each of the guide plates 36. Therefore, during the axial sliding adjustment of the top shaft 37, it can radially push the side dividing plates 34 on the periphery of the positioning column 31 through the top shaft 37, so that the side dividing plates 34 can contact the inner wall of the positioning hole of the metal strip to achieve a precise positioning effect.

[0075] As a preferred embodiment, the contact surfaces of the top shaft 37 and the guide plate 36 are of complementary inclined surface structure, and a pre-tightened return spring is sleeved on the outer periphery of the top shaft 37, so that each side dividing plate 34 can maintain a retracted state by the elastic force of the return spring in the absence of external force, and form a continuous cylindrical surface with the outer surface of the positioning column 31. That is to say, before the positioning column 31 slides upward through the lifting drive and connects with the positioning hole of the metal strip, each side dividing plate 34 is retracted and assembled on the surface of the positioning column 31, so that the positioning column 31 can maintain a sufficient gap with the positioning hole for sliding docking, wherein the diameter of the positioning column after retraction is ≤ the positioning hole diameter - 2×safety gap (recommended ≥0.3mm).

[0076] In this embodiment, an axial air guide channel 38 is integrated at the bottom of the positioning column 31, and the air guide channel 38 is connected with the closed air pressure chamber to form a through-type air pressure compensation circuit;

[0077] A through opening is provided on the side wall of the positioning column 31, and a limit pin 39 is vertically fixed on the push rod 33. A spirally adjustable limit ring 310 is installed on the positioning column 31 above the through opening. The limit ring 310 is driven by a threaded pair to axially displace along the positioning column 31, thereby forming a mechanical locking mechanism for the movement stroke of the limit pin 39, that is, the limit ring 310 can mechanically limit the axial sliding length of the push rod 33, thereby preventing the side dividing plate 34 on the positioning column 31 from being pushed by the top shaft 37 to have an excessive expansion range, resulting in damage to the metal strip. The limit ring 310 adopts M12×0.5 fine pitch thread (lead accuracy ±0.01mm), and each rotation of 36° corresponds to an axial displacement of 50μm. The expansion error of the side dividing plate 34 can be accurately controlled within the range of 0.02-0.15mm through precise adjustment.

[0078] In this embodiment, the belt pressing device 5 includes:

[0079] The outer fixing plate 51 is fixed on the upper pressing plate 22, and a transfer arm 52 is rotatably connected to one side thereof;

[0080] The propulsion cylinder 53 is installed on the outer fixing plate 51, and the output end of the propulsion cylinder 53 is hinged to one end of the transfer arm 52;

[0081] The rubber pressing plate 54 is horizontally fixed to the other end of the transfer arm 52. Among them, the rubber pressing plate 54 can tightly press near the cutting edge of the metal strip. It can provide a strong pressing and fastening effect, avoid the displacement and deviation of the metal strip during cutting, and improve the cutting effect.

[0082] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. An enhanced positioning system for a metal strip cutting unit in the injection molding production of a module housing, characterized in that, It includes: A workbench (1) with a plurality of cutting stations arranged at intervals on its upper end surface. At one side of the workbench (1) at each cutting station, a feeding wheel (11) is rotatably arranged, and a guide plate (12) is fixed on one side of the upper end surface of the workbench (1) close to the feeding wheel (11); A bottom plate frame (2) horizontally fixed at each cutting station on the upper end surface of the workbench (1). A through-type tape slot (21) is provided in the middle of the bottom plate frame (2) along its length direction; Upper pressing plates (22), a plurality of which are provided and evenly arranged along the length direction of the bottom plate frame (2). The plurality of upper pressing plates (22) are symmetrically distributed on both sides above the tape slot (21). A tape pressing device (5) is also assembled on each upper pressing plate (22); A buckle plate mechanism (23) symmetrically fixed on the bottom plate frame (2). Each buckle plate mechanism (23) is arranged in one-to-one correspondence with the upper pressing plate (22) and is used to tightly buckle the upper pressing plate (22) on the surface of the bottom plate frame (2); Multiple groups of cutting units (13), each group of cutting units (13) being composed of several cutting units (13). Each group of cutting units (13) is vertically assembled front and back on the upper end surface of each bottom plate frame (2); Two vibration tape shaking units (4) are arranged below each cutting unit (13). The two vibration tape shaking units (4) are symmetrically distributed at the centers on the upper pressing plates (22) on both sides of the tape slot (21); A positioning mechanism (3) is vertically arranged on the lower end surface of the bottom plate frame (2) and is located directly below the cutting unit (13).

2. The enhanced positioning system of the metal strip cutting unit for injection molding of the module housing according to claim 1, wherein: The two vibration tape shaking units (4) below the cutting unit (13) are arranged at least two tape pitches away from the positioning mechanism.

3. The enhanced positioning system of the metal strip cutting unit for injection molding of the module housing according to claim 1, characterized in that: The vibration tape shaking unit (4) includes: Two substrates (41) arranged parallel to each other up and down. A plurality of fixing rods (42) are vertically fixed on the substrate (41) located above. One end of the fixing rod (42) penetrates through the substrate (41) below and is slidably connected to the upper pressing plate (22); A fixing plate (43) with one end horizontally fixed between the two substrates (41) and the other end extending outside the substrate (41). A main gear disc (44) is rotatably arranged at one end of the fixing plate (43) between the substrates (41); A driven gear (45) is rotatably connected to the other side of the fixing plate (43). The driven gear (45) and the main gear disc (44) are connected and driven by a transmission belt; A positioning guide pin (6) is vertically and rotatably connected below the fixing plate (43) and is coaxially arranged with the driven gear (45). The upper end of the positioning guide pin (6) is fixed to the driven gear (45). The positioning guide pin (6) adopts a two-stage rotation structure; Eccentric blocks (46) are axially distributed at the rotating upper end of the positioning guide pin (6); An electric lifter is installed on the upper pressing plate (22), and the output end of the electric lifter is fixed to the substrate (41) below.

4. The enhanced positioning system for the metal strip cutting unit in the injection molding production of the module housing according to claim 3, characterized in that: The rotating lower end of the positioning guide pin (6) is provided with a guide cavity (61), a piston rod (62) is slidably connected in the guide cavity (61), a capsule sleeve (63) is sleeved outside the rotating lower end of the positioning guide pin (6), and an air hole is formed on one side of the guide cavity (61), and the capsule sleeve (63) is communicated with the guide cavity (61) through the air hole; A liquid guide seat (64) is installed above the driven gear (45) on the fixed plate (43), a guide plug rod (65) is slidably and sealingly connected in the liquid guide seat (64), and the lower end of the guide plug rod (65) slides into the positioning guide pin (6) and is connected with the piston rod (62).

5. The enhanced positioning system of the metal strip cutting unit for the injection molding production of the module housing according to claim 3, characterized in that: The vibration frequencies and vibration directions of the two vibration shaking belt units (4) are exactly the same.

6. The enhanced positioning system for the metal strip cutting unit in the injection molding production of the module housing according to claim 1, characterized in that: The positioning mechanism (3) includes: A positioning column (31) is vertically installed below the bottom plate frame (2), a through hole (32) is formed in the bottom plate frame (2), and the upper end of the positioning column (31) is slidably inserted into the through hole (32) in an interference fit manner; A lifting driver is installed on the lower end surface of the bottom plate frame (2), and the power output end of the lifting driver is connected with the positioning column (31); A push rod (33) is coaxially and slidably arranged in the positioning column (31), a sealed air pressure cavity is arranged below the inside of the positioning column (31), and the lower end of the push rod (33) extends downward to form a piston structure in sealing cooperation with the sealed air pressure cavity; Side dividing plates (34) are multiple and distributed in a circumferential manner. Each side dividing plate (34) is symmetrically fixed with a guide shaft (35) up and down, and forms a radial sliding pair with the positioning column (31) through the guide shaft (35); Guide plates (36) are arranged corresponding to the side dividing plates (34). The guide plates (36) are vertically assembled in the positioning column (31) and fixed with the side dividing plates (34); A top shaft (37) is arranged in a conical structure and fixed to the upper end of the push rod (33), and the top shaft (37) contacts with the guide plates (36).

7. The enhanced positioning system of the metal strip cutting unit for the injection molding production of the module housing according to claim 6, characterized in that: The contact surface between the top shaft (37) and the guide plate (36) is in a complementary inclined plane structure, and a pre-tightening type return spring is sleeved outside the top shaft (37), so that each side dividing plate (34) maintains a closed state under the action of the return spring force without external force, and forms a continuous cylindrical surface with the outer surface of the positioning column (31).

8. The enhanced positioning system for the metal strip cutting unit in the injection molding production of the module housing according to claim 6, characterized in that: An axial air guide channel (38) is integrated at the bottom of the positioning column (31), and the air guide channel (38) is communicated with the sealed air pressure cavity to form a through-type air pressure compensation loop; A through port is formed on the side wall of the positioning column (31), a limit pin (39) is vertically fixed on the push rod (33), and a spiral adjustment type limit ring (310) is assembled above the through port on the positioning column (31). The limit ring (310) is displaced axially along the positioning column (31) through a screw pair transmission to form a mechanical locking mechanism for the movement stroke of the limit pin (39).

9. The enhanced positioning system for the metal strip cutting unit in the injection molding production of the module housing according to claim 1, wherein: The pressing belt device (5) includes: An outer fixed plate (51) is fixed on the upper pressing plate (22), and a transfer arm (52) is rotatably connected to one side thereof; The propulsion cylinder (53) is installed on the outer fixed plate (51), and the output end of the propulsion cylinder (53) is hinged to one end of the adapter arm (52); The rubber pressure plate (54) is horizontally fixed to the other end of the adapter arm (52).

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