A production equipment for riveted parts for construction

Abstract

The present invention provides a production device for riveted parts for construction, characterized in that it includes: a material guide unit; a molding unit, the molding unit being arranged at the upper part of the material guide unit; a material pusher unit, the material pusher unit being arranged at the lower part of the material guide unit; the material guide unit being provided with a feeding area, a first molding area, a second molding area, and a discharging area distributed in sequence along a ring; the feeding area, the first molding area, the second molding area, and the discharging area are all provided with a pre-tightening assembly. The rivet and the tensioning part are driven to move upward synchronously by the first cold heading part, the tensioning part drives the traction block to move upward through the centering part, and the traction block first enters the guide groove and moves upward through the guiding effect of the third chamfer. The purpose of this process is to adjust the upper end of the rivet to be directly below the molding cavity, thereby avoiding the phenomenon of the rivet being deflected when entering the cold heading hole, causing a large shear force on the rivet when punching, and causing defects in the rivet appearance.

Description

Technical Field

[0001] The present invention relates to the technical field of rivet processing, in particular to a production device for riveted parts for construction. Background Art

[0002] In the construction industry, the assembly and connection of building door frames require the use of metal rivets for fast installation. In order to improve the installation accuracy, there are high requirements for the size of the rivets. Therefore, in order to allow the rivets to be gradually formed to achieve the smallest error, a step-by-step cold heading method is usually adopted. During each cold heading process, a part of the rivet is formed, and then the workstation is switched to cold heading again until the rivet is completely formed.

[0003] Chinese patent CN 104174808 A discloses an automatic cold heading rivet machine, which includes a machine body, a crankshaft, a feeding mechanism, a shearing mechanism, and a pier block. The crankshaft driven by a motor is installed on the machine body, and a punch block support seat, a slide rail, and a pier block support seat are fixed to the machine body. One end of a first connecting rod is connected to the crankshaft, and the other end is connected to a punch block guide rail that can reciprocate along the slide rail through a first pin shaft. The two ends of a second connecting rod are respectively connected to the crankshaft and the pier block. The pier block is installed in the pier block support seat, a punch block is provided in the punch block guide rail, and a groove for the punch block to reciprocate is provided in the punch block support seat. The axis of the reciprocating motion of the punch block intersects the axis of the reciprocating motion of the punch block guide rail. The feeding mechanism and the shearing mechanism are installed on the machine body. The processed bar material extends into the shearing mechanism through the feeding mechanism, and the end point of the shearing mechanism's movement corresponds to the position of the pier block.

[0004] However, this technical solution has the following problems:

[0005] 1. During the cold heading process, the rivet is directly pushed into the cold heading hole, which causes the rivet to deflect when entering the cold heading hole. This causes a large shear force when the rivet is squeezed into the punch hole, which brings defects to the shape of the rivet and makes it impossible to rivet the brake drum and brake pad more accurately.

[0006] 2. After each rivet cold heading, the rivet's own diameter will increase with the increase in the number of cold headings. As a result, when the rivet discharged from the previous cold heading enters the next cold heading station, it is difficult to automatically position the rivet with gradually increasing diameter because the positioning component used in this solution is fixed. Summary of the Invention

[0007] The purpose of the present invention is to address the shortcomings of the existing technology and provide a construction riveted parts production equipment, which uses a floating method to perform preliminary positioning of rivets, and cooperates with cold heading guides to adapt to the positioning of different rivet diameters in different cold heading stages, and can avoid the deflection of rivets when entering the cold heading holes; the cold heading process, the loading process and the final blanking process in different stages can be completed synchronously, and the work efficiency is high.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A construction riveted parts production equipment, characterized by comprising:

[0010] Material guiding unit;

[0011] A molding unit, the molding unit being arranged on the upper portion of the material guiding unit;

[0012] A material pushing unit, the material pushing unit being arranged at the lower part of the material guiding unit;

[0013] The material guiding unit is sequentially distributed along the ring with a feeding area, a first forming area, a second forming area and a discharging area;

[0014] The feeding area, the first forming area, the second forming area and the discharging area are all provided with pre-tightening components;

[0015] The raw material enters the pre-tightening assembly at the feeding area and is driven by the rotating material guide unit and passes through the first forming area, the second forming area and the discharging area in turn. The pushing unit that reciprocates up and down cooperates with the corresponding forming unit to synchronously realize the loading, initial forming, second forming and unloading operations.

[0016] As an improvement, the pre-tightening assembly includes

[0017] a first guide mechanism;

[0018] A feeding cavity, the feeding cavity being arranged outside the first guide mechanism;

[0019] The first guide mechanisms are provided in a plurality of groups and are arranged in a ring shape inside the feed cavity.

[0020] As an improvement, the first guiding mechanism includes:

[0021] sleeve;

[0022] A tightening member, the tightening member being movably inserted into the interior of the sleeve;

[0023] a thrust spring connected to and located at a side of the tightening member;

[0024] A guide plate is fixedly sleeved on the outside of the sleeve.

[0025] As an improvement, the said tightening member is divided into two parts, the upper part is a centering member in the shape of a shaft, and the lower part is in the shape of a block;

[0026] The upper and lower ends of the contact surface between the tightening member and the rivet are both provided with a first chamfer;

[0027] The upper end of the centering member is connected to a traction block;

[0028] The traction block is cylindrical and has a diameter larger than the centering piece.

[0029] As an improvement, the molding unit includes:

[0030] A pushing mechanism, a first forming mechanism and a second forming mechanism corresponding one to one with the feeding area, the first forming area and the second forming area in the vertical direction;

[0031] The first forming mechanism comprises:

[0032] Molded parts;

[0033] A pre-guiding mechanism, the pre-guiding mechanism being arranged on a side of the molded part;

[0034] An ejection mechanism is arranged inside the molded part.

[0035] As an improvement, the pre-guiding mechanism includes:

[0036] guide groove;

[0037] a second chamfer, the second chamfer being provided at the top of the guide groove;

[0038] A third chamfer is provided at the bottom of the guide groove.

[0039] As an improvement, the pushing unit includes:

[0040] a second driving mechanism;

[0041] a lifting assembly, the lifting assembly being arranged on the upper portion of the second driving mechanism;

[0042] The lifting assembly comprises:

[0043] A lifting platform is connected to the upper end of the second driving mechanism.

[0044] As an improvement, the upper end of the lifting platform is connected in sequence with a connecting rod, a first cold heading piece, a second cold heading piece and a discharge assembly.

[0045] The upper end of the connecting rod is connected to the pushing mechanism;

[0046] The first cold heading piece and the second cold heading piece correspond to the first forming area and the second forming area respectively in a one-to-one manner in the vertical direction.

[0047] As an improvement, the unloading assembly includes:

[0048] An adapter, the adapter being connected to a side portion of the lifting platform;

[0049] a discharge barrel connected to a side of the adapter;

[0050] A material loosening mechanism connected to the upper end of the discharge barrel;

[0051] The number of the loosening mechanisms is equal to that of the first guide mechanisms and corresponds one to one in the vertical direction;

[0052] A discharge hole is provided inside the discharge barrel;

[0053] The upper end of the loosening mechanism is provided with a fourth chamfer.

[0054] As an improvement, a guide unit is provided between the material guiding unit and the material pushing unit;

[0055] The guide unit comprises:

[0056] A guide member, the guide member is in an arc shape and is located directly above the discharge assembly and is arranged in an open shape;

[0057] The upper end of the guide member is provided with a pre-blocking plate for limiting the rivet entering the pre-tightening assembly, a first guide groove for guiding the first cold heading member, and a second guide groove for guiding the second cold heading member.

[0058] The beneficial effects of the present invention are:

[0059] 1. The present invention performs preliminary positioning by clamping the side of the raw material in the pre-tightening assembly, thereby ensuring that the initial height of the raw material remains consistent during the cold heading process, thereby reducing processing errors.

[0060] 2. The present invention drives the rivet raw material upward through the first cold heading part. At the same time, the first cold heading part pushes the tightening part upward through the shaft shoulder. The tightening part drives the guide plate upward along the positioning groove through the sleeve to ensure that the trajectory of the rivet will not deviate during the process of entering the interior of the molded part.

[0061] 3. The present invention drives the rivet and the tensioning member to move upward synchronously through the first cold heading member, and the tensioning member drives the traction block to move upward through the centering member. The traction block first enters the guide groove and moves upward through the guiding effect of the third chamfer. The purpose of this process is to adjust the upper end of the rivet to just below the forming cavity, thereby avoiding the rivet from being deflected when entering the cold heading hole, causing a large shear force when punching the rivet, and causing defects in the rivet appearance.

[0062] 4. When the rivet enters the forming cavity, the excess length of the traction block moves out along the second chamfer to the outside of the guide groove. At this time, the tightening member is separated from the rivet, making it easier for the first cold heading member to perform cold heading on the rivet.

[0063] 5. The present invention drives the discharge barrel to move upward through the adapter, and the discharge barrel drives the feeding mechanism to move upward. The feeding mechanism drives the tightening member to expand outward through the fourth chamfer in cooperation with the first chamfer. At this time, the rivet clamped in the tightening member falls into the collection frame along the drop hole, thereby achieving the effect of automatic unloading.

[0064] 6. The present invention guides the first cold heading piece and the second cold heading piece through the first guide groove and the second guide groove, and finally performs the unloading work. The whole process is carried out synchronously, and the work efficiency is high.

[0065] In summary, the present invention has the advantages of being able to adapt to the positioning of different rivet diameters in different cold heading stages, and being able to avoid the deflection of the rivet when it enters the cold heading hole; being able to complete the cold heading process, the loading process and the final blanking process in different stages simultaneously, and having high work efficiency, and is particularly suitable for the production of rivets for building doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0067] Figure 2 Schematic diagram of the structure of the material guide unit of the present invention;

[0068] Figure 3 This is a diagram showing the coordination relationship between the material pushing unit and the material guiding unit of the present invention;

[0069] Figure 4 This is a motion state diagram of the feeding process of the present invention;

[0070] Figure 5 This is a motion diagram of the material guiding unit and the material pushing unit of the present invention;

[0071] Figure 6 This is a motion diagram of the first cold heading piece entering the first forming mechanism of the present invention;

[0072] Figure 7 This is a motion diagram of the second cold heading piece of the present invention being separated from the second forming mechanism;

[0073] Figure 8 Schematic diagram of the structure of the first forming mechanism of the present invention;

[0074] Figure 9 This is a motion state diagram of the unloading process of the unloading assembly of the present invention;

[0075] Figure 10This is a diagram showing the coordination between the pusher unit and the guide unit of the present invention.

[0076] In the figure, 1, material guide unit; 2, molding unit; 3, guide unit; 4, material pushing unit; 5, material feeding unit; 10, pre-tightening assembly; 11, material feeding area; 12, first molding area; 13, second molding area; 14, material discharging area; 15, first driving mechanism; 101, first guide mechanism; 1011, sleeve; 1012, tightening member; 1013, thrust spring; 1014, guide plate; 102, material feeding cavity; 1021, slide rail; 1022, positioning groove; 10121, first chamfer; 10122, centering member; 10123, pulling block; 21, material pushing mechanism; 210, first guide sleeve; 211, cross; 212, ejector rod; 22, first molding mechanism; 23, second molding mechanism; 221, molding member; 2211, molding cavity; 222, pre-guiding mechanism; 2221, guide groove; 2222, second chamfer; 2223, third chamfer; 223, ejection mechanism; 2231, guide cavity; 2232, push plate; 2233, ejection spring; 301, guide member; 3011, pre-blocking plate; 3012, first guide groove; 3013, second guide groove; 401, second driving mechanism; 402, lifting assembly; 4021, lifting platform; 4022, connecting rod; 40 221. Guide sleeve; 4023. First cold heading part; 4024. Second cold heading part; 4025. Unloading assembly; 40251. Adapter; 40252. Discharge barrel; 402521. Dropping hole; 40253. Loosening mechanism; 402531. Fourth chamfer; 4026. Collection frame; 501. Support; 502. Presser; 503. Shearing mechanism; 504. Limiting plate; 505. Material transport rail. DETAILED DESCRIPTION

[0077] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0078] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0079] Example 1

[0080] like Figure 1-3 As shown, a construction riveted parts production equipment includes:

[0081] Material guiding unit 1;

[0082] The molding unit 2 is provided on the upper portion of the material guiding unit 1;

[0083] A material pushing unit 4, which is provided at the lower part of the material guiding unit 1;

[0084] The material guiding unit 1 is sequentially distributed along a ring shape with a feeding area 11, a first forming area 12, a second forming area 13 and a discharging area 14;

[0085] The feeding area 11, the first forming area 12, the second forming area 13 and the discharging area 14 are all provided with a pre-tightening assembly 10;

[0086] The raw material enters the pre-tightening assembly 10 at the feeding area 11 and is driven by the rotating material guide unit 1 and passes through the first molding area 12, the second molding area 13 and the discharging area 14 in sequence. The pushing unit 4 that reciprocates up and down cooperates with the corresponding molding unit 2 to synchronously realize the loading, initial molding, second molding and unloading operations.

[0087] It should be supplemented that the pre-tightening components 10 are provided in a plurality of groups in a ring shape, and a first driving mechanism 15 is provided at the lower portion thereof.

[0088] It is also necessary to add that Figure 4 As shown, a feeding unit 5 is provided on the side of the feeding area 11, and the feeding unit 5 includes:

[0089] A support 501, wherein a presser 502 for straightening rivet raw materials is connected to the support 501;

[0090] The side of the support 501 close to the feeding area 11 is connected to a material transport rail 505;

[0091] A shearing mechanism 503 for shearing the raw materials is movably connected to the inside of the material transport rail 505 and located at the lower end of the press 502;

[0092] A limiting plate 504 for limiting the length of the raw material is connected directly below the shearing mechanism 503 and located on the inner side of the bracket 501.

[0093] As an improvement, Figure 6-7 As shown, the pre-tightening assembly 10 includes

[0094] A first guide mechanism 101;

[0095] A feeding chamber 102, the feeding chamber 102 being arranged outside the first guide mechanism 101;

[0096] The first guide mechanisms 101 are provided in a plurality of groups and are arranged in a ring shape inside the feed chamber 102 .

[0097] It should be supplemented that a slide rail 1021 is provided in the feed chamber 102 , and a positioning groove 1022 is provided inside the slide rail 1021 and outside the guide plate 1014 .

[0098] Furthermore, the first guiding mechanism 101 includes:

[0099] Sleeve 1011;

[0100] A tightening member 1012 , the tightening member 1012 being movably inserted into the sleeve 1011 ;

[0101] A thrust spring 1013, the thrust spring 1013 being connected to and located at a side of the pressing member 1012;

[0102] The guide plate 1014 is fixedly sleeved on the outside of the sleeve 1011 .

[0103] Furthermore, the said tightening member 1012 is divided into two parts, the upper part is a centering member 10122 in the shape of an axis, and the lower part is in the shape of a block;

[0104] The upper and lower ends of the contact surface between the said pressing member 1012 and the rivet are both provided with first chamfers 10121;

[0105] The upper end of the centering member 10122 is connected to a traction block 10123;

[0106] The traction block is cylindrical and has a diameter larger than the centering piece 10122.

[0107] It should be noted that if Figure 4 As shown, the present invention cuts the rivet raw material through the shearing mechanism 503 and moves the raw material to the feeding area 11 along the material transport rail 505. At this time, the second driving mechanism 401 drives the connecting rod 4022 to move downward through the lifting platform 4021, and the connecting rod 4022 drives the push rod 212 to move downward along the first guide sleeve 210, so that the raw material originally stuck in the shearing mechanism 503 moves downward until the lower end of the raw material contacts the upper surface of the pre-baffle 3011. At the same time, the side of the raw material is clamped in the pre-tightening assembly 10 for preliminary positioning, ensuring that the initial height of the raw material remains consistent during the cold heading process, thereby reducing processing errors.

[0108] As an improvement, Figure 6-7 As shown, the molding unit 2 includes:

[0109] A pushing mechanism 21, a first molding mechanism 22, and a second molding mechanism 23 corresponding to the feeding area 11, the first molding area 12, and the second molding area 13 in the vertical direction;

[0110] The pushing mechanism 21 includes a first guide sleeve 210 and a push rod 212 slidably inserted into the first guide sleeve 210 for pushing the rivet raw material in the shearing mechanism 503 into the feeding area 11;

[0111] The lower end of the first guide sleeve 210 is connected to a cross 211 for fixing the first forming mechanism 22 and the second forming mechanism 23;

[0112] The first forming mechanism 22 includes:

[0113] Molded part 221;

[0114] A pre-guiding mechanism 222 , the pre-guiding mechanism 222 being provided on a side of the forming member 221 ;

[0115] An ejection mechanism 223 , the ejection mechanism 223 being disposed inside the molded part 221 ;

[0116] The bottom of the molding part 221 is provided with a molding cavity 2211;

[0117] The ejection mechanism 223 includes:

[0118] A guide cavity 2231 is provided inside the molded part 221;

[0119] A push plate 2232 movably inserted into the material guiding cavity 2231 ;

[0120] The upper end of the push plate 2232 is connected to a push spring 2233 located inside the guide cavity 2231 .

[0121] Further, such as Figure 8 As shown, the pre-guiding mechanism 222 includes:

[0122] guide groove 2221;

[0123] A second chamfer 2222 , the second chamfer 2222 being provided at the top of the guide groove 2221 ;

[0124] The third chamfer 2223 is provided at the bottom of the guide groove 2221 .

[0125] It should be noted that after the feeding of the feeding area is completed, the first driving mechanism 15 provided with a separate power source drives the pre-tightening assembly 10 to rotate and switch, and the preliminary forming work, the second forming work, and the unloading work are performed in sequence. After each forming process, the diameter of the rivet will increase. In the prior art, a fixed clamping transfer method is used for transfer to achieve switching of the workstations. However, this method causes deflection during the clamping process when dealing with rivets with gradually increasing diameters.

[0126] Take the rivet entering and exiting the first forming mechanism as an example. Figure 6 As shown, the present invention preliminarily clamps the rivet raw material through the pressing member 1012. At this time, the thrust spring 1013 is in a compressed state. With the subsequent cold heading process, the number of rivets increases directly. The greater the compression of the thrust spring, during the process of the rivet raw material entering the forming cavity 2211, the second driving mechanism 401 provided with a separate power source drives the lifting platform 4021 to move upward. The lifting platform 4021 drives the rivet raw material upward through the first cold heading member 4023. At the same time, the first cold heading member 4023 pushes the pressing member 1012 upward through the shaft shoulder. The pressing member 1012 drives the guide plate 1014 to move upward along the positioning groove 1022 through the sleeve 1011, ensuring that the trajectory of the rivet entering the forming member 221 will not deviate.

[0127] In addition, in the present invention, during the synchronous upward movement of the rivet and the pressing member 1012, the traction block 10123 is firstly entered into the guide groove 2221 to preliminarily align the pressing member 1012 that clamps the rivet, and then the rivet is allowed to enter the forming cavity 2211 for cold heading. Specifically, the first cold heading member 4023 drives the rivet and the pressing member 1012 to move upward synchronously, and the pressing member 1012 drives the traction block 10123 to move upward through the centering member 10122. The traction block 10123 first enters the guide groove 2221 and moves upward through the guiding effect of the third chamfer 2223. The purpose of this process is to adjust the upper end of the rivet to just below the forming cavity 2211, thereby avoiding the phenomenon of deflection when the rivet enters the cold heading hole, resulting in a large shear force on the rivet during punching, which brings defects to the rivet shape.

[0128] When the rivet enters the forming cavity 2211 , the excess length of the pulling block 10123 moves out along the second chamfer 2222 to the outside of the guide groove 2221 . At this time, the pressing member 1012 is separated from the rivet, making it easier for the first cold heading member 4023 to perform cold heading on the rivet.

[0129] As an improvement, Figure 9 As shown, the pushing unit 4 includes:

[0130] Second driving mechanism 401;

[0131] A lifting assembly 402 , the lifting assembly 402 being disposed on an upper portion of the second driving mechanism 401 ;

[0132] The lifting assembly 402 includes:

[0133] The lifting platform 4021 is connected to the upper end of the second driving mechanism 401 .

[0134] Furthermore, the upper end of the lifting platform 4021 is connected in sequence with a connecting rod 4022, a first cold heading piece 4023, a second cold heading piece 4024 and a discharge assembly 4025.

[0135] The upper end of the connecting rod 4022 is connected to the pushing mechanism 21;

[0136] Preferably, a guide sleeve 40221 is provided on the outer movable sleeve of the connecting rod 4022;

[0137] The first cold heading piece 4023 and the second cold heading piece 4024 correspond to the first forming area 12 and the second forming area 13 in a vertical direction, respectively.

[0138] Furthermore, Figure 5 , Figure 9 As shown, the unloading assembly 4025 includes:

[0139] An adapter 40251 connected to a side of the lifting platform 4021;

[0140] A discharge barrel 40252 connected to a side of the adapter 40251;

[0141] A material loosening mechanism 40253 connected to the upper end of the discharge barrel 40252;

[0142] The number of the loosening mechanisms 40253 is equal to the number of the first guide mechanisms 101 and corresponds one to one in the vertical direction;

[0143] The discharge barrel 40252 is provided with a discharge hole 402521 therein;

[0144] The upper end of the loosening mechanism 40253 is provided with a fourth chamfer 402531 .

[0145] It should be noted that if Figure 9 As shown, during the unloading process, the lifting platform 4021 is driven to move upward by the second driving mechanism 401, the lifting platform 4021 drives the discharge barrel 40252 to move upward through the adapter 40251, the discharge barrel 40252 drives the feeding mechanism 40253 to move upward, and the feeding mechanism 40253 drives the tightening member 1012 to expand outward through the fourth chamfer 402531 and the first chamfer 10121. At this time, the rivet clamped in the tightening member 1012 falls into the collection frame 4026 along the drop hole 402521, thereby achieving the effect of automatic unloading.

[0146] Example 2

[0147] like Figure 10 As shown, the components identical or corresponding to those in the first embodiment are designated by the corresponding reference numerals in the first embodiment. For simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0148] A guide unit 3 is provided between the material guiding unit 1 and the material pushing unit 4;

[0149] The guide unit 3 includes:

[0150] The guide member 301 is arc-shaped and is located directly above the discharge assembly 4025 and is configured to be open;

[0151] The upper end of the guide member 301 is provided with a pre-blocking plate 3011 for limiting the rivet entering the pre-tightening assembly 10, a first guide groove 3012 for guiding the first cold heading member 4023, and a second guide groove 3013 for guiding the second cold heading member 4024.

[0152] It should be noted that the top of the unloading assembly 4025 is set to be open, so that the rivets can fall into the collection frame 4026 along the opening during the unloading process;

[0153] The present invention cooperates with the guide unit 3 and the pusher unit 4, and the raw material is initially adjusted in height at the pre-baffle 3011, and then the first cold heading piece 4023 and the second cold heading piece 4024 are guided by the first guide groove 3012 and the second guide groove 3013, and finally the unloading work is carried out. The whole process is carried out synchronously. Specifically, after each switching of the work station of the guide unit 1, the second driving mechanism 401 drives the lifting platform 4021 to move upward once, and the lifting platform 4021 drives the first The cold heading part 40236, the second cold heading part 4024 and the unloading assembly 4025 rise synchronously, and perform preliminary cold heading, secondary cold heading and unloading respectively. Then, the second driving mechanism 401 drives the connecting rod 4022 to move downward through the lifting platform 4021, and the connecting rod 4022 drives the raw materials at the shearing mechanism 503 into the feeding area 11 through the push rod 212, thereby realizing the synchronous completion of the cold heading process, loading process and final blanking process at different stages, with high work efficiency.

[0154] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A construction riveted parts production equipment, characterized in that: include: Material guiding unit; A molding unit, the molding unit being arranged on the upper portion of the material guiding unit; A material pushing unit, the material pushing unit being arranged at the lower part of the material guiding unit; The material guiding unit is sequentially distributed along the ring with a feeding area, a first forming area, a second forming area and a discharging area; The feeding area, the first forming area, the second forming area and the discharging area are all provided with pre-tightening components; The raw material enters the pre-tightening assembly at the feeding area and is driven by the rotating material guide unit and passes through the first forming area, the second forming area and the discharging area in sequence. The pushing unit that reciprocates up and down cooperates with the corresponding forming unit to synchronously realize the loading, primary forming, secondary forming and unloading operations. The pre-tightening assembly comprises: a first guide mechanism; A feeding cavity, the feeding cavity being arranged outside the first guide mechanism; The first guide mechanism is provided in a plurality of groups and is arranged in a ring shape inside the feed chamber; A first driving mechanism (15) is provided at the lower portion of the pre-tightening assembly; The pushing unit comprises: a second driving mechanism; a lifting assembly, the lifting assembly being arranged on the upper portion of the second driving mechanism; The lifting assembly comprises: a lifting platform connected to an upper end of the second driving mechanism; The upper end of the lifting platform is sequentially connected with a connecting rod, a first cold heading piece, a second cold heading piece and a discharge assembly; The upper end of the connecting rod is connected to the pushing mechanism; The first cold heading piece and the second cold heading piece correspond to the first forming area and the second forming area respectively in a one-to-one manner in the vertical direction; The unloading assembly comprises: an adapter connected to a side of the lifting platform; a discharge barrel connected to a side of the adapter; A material loosening mechanism connected to the upper end of the discharge barrel; The number of the loosening mechanisms is equal to that of the first guide mechanisms and corresponds one to one in the vertical direction; A discharge hole is provided inside the discharge barrel; The upper end of the loosening mechanism is provided with a fourth chamfer.

2. A construction rivet production equipment according to claim 1, characterized in that: The first guiding mechanism comprises: sleeve; A tightening member, the tightening member being movably inserted into the interior of the sleeve; a thrust spring connected to and located at a side of the tightening member; A guide plate is fixedly sleeved on the outside of the sleeve.

3. The equipment for producing rivets for construction according to claim 2, characterized in that: The tightening member is divided into two parts, the upper part is a centering member in the shape of a shaft, and the lower part is in the shape of a block; The upper and lower ends of the contact surface between the tightening member and the rivet are both provided with a first chamfer; The upper end of the centering member is connected to a traction block; The traction block is cylindrical and has a diameter larger than the centering piece.

4. The equipment for producing rivets for construction according to claim 1, characterized in that: The molding unit comprises: A pushing mechanism, a first forming mechanism and a second forming mechanism corresponding one to one with the feeding area, the first forming area and the second forming area in the vertical direction; The first forming mechanism comprises: Molded parts; A pre-guiding mechanism, the pre-guiding mechanism being provided on a side portion of the molded part; An ejection mechanism is arranged inside the molded part.

5. The equipment for producing rivets for construction according to claim 4, characterized in that: The pre-guiding mechanism comprises: guide groove; a second chamfer, the second chamfer being provided at the top of the guide groove; A third chamfer is provided at the bottom of the guide groove.

6. The equipment for producing rivets for construction according to claim 1, characterized in that: A guide unit is provided between the material guiding unit and the material pushing unit; The guide unit comprises: A guide member, the guide member is in an arc shape and is located directly above the discharge assembly and is arranged in an open shape; The upper end of the guide member is provided with a pre-blocking plate for limiting the rivet entering the pre-tightening assembly, a first guide groove for guiding the first cold heading member, and a second guide groove for guiding the second cold heading member.

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