Feeding mechanism used between constant temperature furnace and heating furnace

Abstract

The invention relates to the technical field of feeding mechanisms, in particular to a feeding mechanism used between a constant-temperature furnace and a heating furnace, which comprises a telescopic conveying belt, a shell arranged at the top of the telescopic conveying belt, a limiting mechanism arranged in the shell and an adjusting mechanism arranged at the top of the telescopic conveying belt and used for adjusting the position of a workpiece, a fixing plate is horizontally installed in the shell, and limiting holes capable of penetrating through the upper end face and the lower end face of the fixing plate are symmetrically formed in the positions, close to the centers of the two sides, of the fixing plate. The limiting mechanism further comprises two sets of limiting assemblies, the two sets of limiting assemblies comprise spline shafts longitudinally installed in the limiting holes, and material blocking plates used for blocking materials are installed at the bottom ends of the spline shafts. A sliding table capable of reciprocating in the horizontal direction is slidably arranged on the top of the inner side of the shell. Accurate control over the moving time sequence of the workpieces on the telescopic conveying belt is achieved, and the problem that the workpieces fall off due to asynchronous conveying is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of feeding mechanisms, in particular to a feeding mechanism used between a constant-temperature furnace and a heating furnace. BACKGROUND

[0002] The telescopic conveying belt for conveying workpieces between the constant-temperature furnace and the heating furnace is a key connecting device in a high-temperature process system, adopts a double-layer high-temperature-resistant structure design, and the surface conveying belt is selected from 310S stainless steel chain plates or ceramic-coated mesh belts and can resist a high-temperature environment above 800 DEG C. The device is provided with a thermal expansion compensation mechanism, the thermal deformation amount of metal is absorbed through a spring guide rail composite structure, and it is ensured that the conveying plane is always accurately connected with the furnace opening. The driving system adopts a high-temperature-resistant servo motor direct drive, cooperates with an incremental encoder to realize 0.1mm-level displacement control, and the conveying speed can be steplessly adjusted in the range of 5-50m / min. The device integrates infrared temperature measurement and automatic deviation correction functions, adjusts the conveying belt tension in real time through a PID algorithm, effectively solves the workpiece thermal drift problem in a high-temperature environment, realizes stable material flow between the constant-temperature zone and the heating zone, and significantly improves the efficiency and safety of the continuous heat treatment process.

[0003] The patent file with Chinese publication number CN217995664U discloses a telescopic conveying belt, which has a fixed support, a bearing support, a lifting system, a telescopic support, a first roller group, a second roller group and a conveying belt. The fixed end of the bearing support is connected to the fixed support through a hinge, and the free end is supported by the lifting system. The telescopic support is assembled on the bearing support and can be extended from the free end. The first roller group is installed on the bearing support, and the second roller group is driven. The second roller group is installed on the telescopic support and moves with the telescopic support to adjust the working position. The conveying belt is wound between the first roller group and the second roller group, and part of the conveying belt is folded between the telescopic support and the bearing support. The structure is scientific and reasonable, the investment cost is low, the conveying distance of the conveying belt can be lengthened by extending the telescopic support from the bearing support, different occasions can be matched, the height of the conveying belt can be adjusted to dock with the corresponding equipment through the lifting system, and the practicability is improved.

[0004] When the telescopic conveying belt in the above patent file conveys workpieces, the overall length of the telescopic conveying belt is increased through the movement of the telescopic support, so that the telescopic support can send the workpieces into the furnace cavity. At the same time, the motor drives the conveying belt to move through the roller, so that the conveying belt can drive the workpieces to walk on the top of the telescopic conveying belt until the workpieces are separated from the telescopic conveying belt and fall into the furnace cavity. However, when the telescopic support is recovered, the workpieces will continue to move under the driving of the conveying belt, which causes the workpieces to easily fall off the conveying belt. Therefore, a feeding mechanism used between a constant-temperature furnace and a heating furnace is proposed. SUMMARY

[0005] To solve the above problems, a feeding mechanism for constant temperature furnace and heating furnace is provided, which utilizes a sliding table to drive two groups of downward pressing plates to realize synchronous displacement. The two groups of downward pressing plates are in dynamic contact with the top end of the corresponding spline shaft through the inclined surface at the bottom, and form the alternating longitudinal displacement of the two groups of spline shafts. The two groups of spline shafts drive the blocking plate at the bottom to alternately physically block the workpieces on the telescopic conveying belt. The timing of the workpiece movement on the telescopic conveying belt is accurately controlled, and the problem of workpiece falling caused by asynchronous conveying is solved.

[0006] To solve the above problems, a feeding mechanism for constant temperature furnace and heating furnace is provided, which utilizes a sliding table to drive two groups of downward pressing plates to realize synchronous displacement. The two groups of downward pressing plates are in dynamic contact with the top end of the corresponding spline shaft through the inclined surface at the bottom, and form the alternating longitudinal displacement of the two groups of spline shafts. The two groups of spline shafts drive the blocking plate at the bottom to alternately physically block the workpieces on the telescopic conveying belt. The timing of the workpiece movement on the telescopic conveying belt is accurately controlled, and the problem of workpiece falling caused by asynchronous conveying is solved.

[0007] The limiting mechanism further comprises two groups of limiting components, the two groups of limiting components comprising spline shafts longitudinally installed in the limiting holes, the bottom end of the spline shaft being provided with a blocking plate for blocking materials; the top of the inner side of the shell is slidably provided with a sliding table capable of reciprocating in the horizontal direction, the bottom of the sliding table being longitudinally provided with two groups of downward pressing plates, the two groups of downward pressing plates being arranged in parallel with each other, the bottom of the two groups of downward pressing plates being provided with an inclined inclined surface, and the inclined surface being in contact with the top of the spline shaft.

[0008] As a technical solution of the present application, the top end of the spline shaft is fixed with a second fixing seat, one side of the second fixing seat is horizontally provided with a mounting shaft, and the mounting shaft is provided with a rotatable limiting roller capable of walking along the inclined surface.

[0009] As a technical solution of the present application, the bottom end of the spline shaft is fixed with a limiting plate, and a sliding hole is longitudinally formed in the limiting plate near the side of the spline shaft.

[0010] The blocking plate is longitudinally fixed with a second limiting slide rod capable of sliding with the sliding hole;

[0011] The top of the blocking plate is provided with a second return spring, and the second return spring is sleeved on the spline shaft.

[0012] As a technical solution of the present application, the bottom of the second fixing seat is provided with a first return spring, and the first return spring is sleeved on the spline shaft.

[0013] As a technical solution of the present application, the adjusting mechanism comprises a pushing plate, and the pushing plate has two groups and can be close to or away from each other.

[0014] The pushing plate is installed in the inner side of the shell and is located at the top of the telescopic conveying belt.

[0015] As a technical scheme of the present application, the two sides of the telescopic conveying belt are symmetrically provided with limiting sliding grooves, the inside of the limiting sliding grooves is provided with movable frames capable of moving close to each other or moving away from each other, and the movable frames have two groups;

[0016] The top end of the movable frame is symmetrically provided with folding frames capable of unfolding or folding up, one end of the folding frame is hingedly connected to the pushing plate, and the other end of the folding frame is hingedly connected to the upper end face of the first fixed seat.

[0017] The top end of the movable frame is symmetrically provided with folding frames capable of unfolding or folding up, one end of the folding frame is hingedly connected to the pushing plate, and the other end of the folding frame is hingedly connected to the upper end face of the first fixed seat.

[0018] As a technical scheme of the present application, the two sides of the telescopic conveying belt are symmetrically provided with limiting sliding grooves, the inside of the limiting sliding grooves is provided with movable frames capable of moving close to each other or moving away from each other, and the movable frames have two groups;

[0019] One side of the pushing plate is symmetrically fixed with two first limiting sliding rods capable of being inserted into the limiting sliding sleeve, and the first limiting sliding rod and the limiting sliding sleeve are in sliding fit.

[0020] As a technical scheme of the present application, the inside of the telescopic conveying belt is provided with a sliding block capable of reciprocating in the horizontal direction, the two sides of the sliding block are hingedly connected with a push-pull rod, and one end of the push-pull rod away from the sliding block is hingedly connected with the movable frame.

[0021] As a technical scheme of the present application, the inside of the telescopic conveying belt is horizontally fixed with a horizontal plate, the lower end face of the horizontal plate is fixed with a second sliding rail for limiting the moving direction of the sliding block, and the sliding block is slidingly installed on the second sliding rail.

[0022] The lower end face of the horizontal plate is fixed with a hydraulic telescopic piece beside the second sliding rail for driving the sliding block to reciprocate, and the telescopic end of the hydraulic telescopic piece is fixedly connected with the sliding block.

[0023] As a technical scheme of the present application, the upper end face of the inside of the shell is horizontally installed with a first sliding rail for limiting the moving direction of the sliding table, and the sliding table is slidingly installed on the first sliding rail.

[0024] The upper end face of the inside of the shell is fixed with a telescopic cylinder for driving the sliding table to reciprocate along the first sliding rail, and the telescopic end of the telescopic cylinder is fixedly connected with the sliding table.

[0025] The present application has the following beneficial effects compared with the prior art:

[0026] 1. The application utilizes a sliding table to drive two sets of lower pressing plates to achieve synchronous displacement. The two sets of lower pressing plates form dynamic contact with the top ends of the corresponding side spline shafts through the inclined surfaces at the bottom. When the sliding table performs lateral displacement, the top end of one set of spline shafts produces upward relative motion along the inclined surface of the lower pressing plate, while the top end of the other set of spline shafts produces downward relative motion along the corresponding inclined surface. Thus, alternating longitudinal displacement of the two sets of spline shafts is formed. The two sets of spline shafts drive the blocking plates at the bottom to alternately physically block the workpieces on the telescopic conveyor belt. The precise control of the timing of the movement of the workpieces on the telescopic conveyor belt is achieved, and the problem of workpiece falling off due to asynchronous conveying is solved.

[0027] 2. The application fixes the second fixed seat at the top end of the spline shaft and installs the limiting roller on the second fixed seat on one side of the second fixed seat. The top of the limiting roller is always in contact with the inclined surface. When the sliding table moves the lower pressing plate, the limiting roller can walk along the inclined surface. Direct wear between the top end of the spline shaft and the inclined surface is avoided. Thus, the service life of the spline shaft is longer.

[0028] 3. The application utilizes the moving frame to drive the folding frame to unfold or fold up. When the folding frame unfolds, the end of the folding frame away from the first fixed seat will push the material pushing plate, so that the two sets of material pushing plates approach each other. At this time, the two sets of material pushing plates cooperate with each other to make the workpiece be at the center of the upper end surface of the telescopic conveyor belt. Thus, the workpiece can move along the center line of the telescopic conveyor belt. The workpiece deviation is effectively avoided, so that the telescopic conveyor belt can accurately convey the workpiece into the furnace cavity. When the moving frames move away from each other, the moving frames can drive the folding frame to fold up. The folding frame folds up at the same time, which drives the two sets of material pushing plates to move away from each other, so that the material pushing plates release the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a perspective structural diagram of a feeding mechanism between a constant temperature furnace and a heating furnace Figure 1 .

[0030] Figure 2 is a perspective structural diagram of a feeding mechanism between a constant temperature furnace and a heating furnace Figure 2 .

[0031] Figure 3 is a top view of a feeding mechanism between a constant temperature furnace and a heating furnace.

[0032] Figure 4 is Figure 3 the sectional view at A-A in

[0033] Figure 5 is a schematic diagram of the internal structure of a telescopic conveyor belt in a feeding mechanism between a constant temperature furnace and a heating furnace.

[0034] Figure 6 is a perspective view of a limiting mechanism for a feeding mechanism between a constant temperature furnace and a heating furnace.

[0035] Figure 7 is an exploded view of a limiting assembly for a feeding mechanism between a constant temperature furnace and a heating furnace.

[0036] Figure 8 is a perspective view of a fixed plate for a feeding mechanism between a constant temperature furnace and a heating furnace.

[0037] Figure 9 is a perspective view of an adjusting mechanism for a feeding mechanism between a constant temperature furnace and a heating furnace.

[0038] Figure 10 is a perspective view of a moving frame for a feeding mechanism between a constant temperature furnace and a heating furnace.

[0039] The figure is marked: 1, telescopic conveying belt; 11, limiting chute; 14, cross plate; 3, shell; 31, first sliding rail; 32, telescopic cylinder; 4, adjusting mechanism; 41, moving frame; 411, folding frame; 42, first fixed seat; 421, limiting sliding sleeve; 43, pushing plate; 431, first limiting sliding rod; 44, push-pull rod; 45, sliding block; 5, limiting mechanism; 51, sliding table; 52, pressing plate; 521, inclined surface; 53, fixed plate; 531, limiting hole; 54, limiting assembly; 541, spline shaft; 542, second fixed seat; 543, mounting shaft; 544, limiting roller; 545, limiting plate; 546, sliding hole; 55, first return spring; 56, second return spring; 57, material blocking plate; 571, second limiting sliding rod; 6, hydraulic telescopic part; 61, second sliding rail. DETAILED DESCRIPTION

[0040] In order to further understand the features, technical means and specific purposes and functions of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0041] Referring to Figures 1-10 shown, a feeding mechanism between a constant temperature furnace and a heating furnace, comprising a telescopic conveying belt 1, a shell 3 arranged on the top of the telescopic conveying belt 1, a limiting mechanism 5 arranged in the shell 3, and an adjusting mechanism 4 arranged on the top of the telescopic conveying belt 1 for adjusting the position of the workpiece, a fixed plate 53 is horizontally installed in the shell 3, and limiting holes 531 capable of penetrating the upper end face and the lower end face are symmetrically arranged near the center of the two sides of the fixed plate 53;

[0042] The limiting mechanism 5 further comprises two sets of limiting assemblies 54, which include spline shafts 541 longitudinally installed in the limiting holes 531, and material blocking plates 57 installed at the bottom ends of the spline shafts 541 for blocking materials.

[0043] The slide table 51 drives the two sets of downward pressing plates 52 to realize synchronous displacement through reciprocating linear motion. The two sets of downward pressing plates 52 are both provided with inclined surfaces 521 at the bottom, which respectively form dynamic contact with the top ends of the corresponding spline shafts 541. When the slide table 51 performs lateral displacement, the top end of one set of spline shafts 541 generates upward relative motion along the inclined surface of the downward pressing plate 521, while the top end of the other set of spline shafts 541 generates downward relative motion along the corresponding inclined surface 521. Thus, the alternating longitudinal displacement of the two sets of spline shafts 541 is formed. During the vertical motion of the spline shafts 541, the spline shafts 541 and the material blocking plates 57 at the bottom are displaced synchronously. When one set of material blocking plates 57 is displaced downward to contact the upper end surface of the telescopic conveying belt 1, the material blocking plates 57 physically block the workpieces on the telescopic conveying belt 1, forcing the workpieces to stop moving. At the same time, the other set of material blocking plates 57 is separated from the upper end surface of the telescopic conveying belt 1 due to the upward motion of the corresponding spline shaft 541, thereby releasing the constraint on the workpieces, so that the workpieces on the upper end surface of the telescopic conveying belt 1 can continue to move. This cooperative mechanism realizes precise control of the timing of the movement of the workpieces on the telescopic conveying belt 1, effectively avoiding the problem of workpiece falling due to asynchronous conveying.

[0044] Referring to Figure 6 , Figure 7 and Figure 8 , the top end of the spline shaft 541 is fixed with a second fixing seat 542, one side of the second fixing seat 542 is horizontally provided with a mounting shaft 543, and a rotatable limiting roller 544 is mounted on the mounting shaft 543, which can run along the inclined surface 521.

[0045] By fixing the second fixing seat 542 at the top end of the spline shaft 541 and mounting the limiting roller 544 on the mounting shaft 543 on one side of the second fixing seat 542, the top of the limiting roller 544 is always in contact with the inclined surface 521. When the slide table 51 drives the downward pressing plate 52 to move, the limiting roller 544 can run along the inclined surface 521, avoiding direct wear between the top end of the spline shaft 541 and the inclined surface 521.

[0046] Referring to Figure 6 , Figure 7 and Figure 8As shown, the bottom end of the spline shaft 541 is fixed with a limiting plate 545, and a sliding hole 546 is longitudinally arranged on the limiting plate 545 near the side of the spline shaft 541;

[0047] The limiting plate 57 is longitudinally fixed with a second limiting sliding rod 571 which can slide with the sliding hole 546;

[0048] The top of the limiting plate 57 is provided with a second reset spring 56 which is sleeved on the spline shaft 541.

[0049] In order to ensure the stability of the limiting plate 57, the second limiting sliding rod 571 is symmetrically fixed on the top of the limiting plate 57 and then installed in the sliding hole 546. When the bottom of the limiting plate 57 contacts with the upper end surface of the telescopic conveying belt 1, the limiting plate 57 drives the second limiting sliding rod 571 to longitudinally slide in the sliding hole 546, effectively avoiding the rotation of the limiting plate 57 around the central axis of the second limiting sliding rod 571.

[0050] The bottom of the second fixed seat 542 is provided with a first reset spring 55 which is sleeved on the spline shaft 541.

[0051] When the pressing plate 52 extrudes the spline shaft 541, the second fixed seat 542 at the top end of the spline shaft 541 extrudes the first reset spring 55, so that the first reset spring 55 gradually accumulates potential energy. When the extrusion force of the pressing plate 52 on the spline shaft 541 gradually decreases, the potential energy accumulated on the first reset spring 55 is gradually released, so that the first reset spring 55 moves upward through the second fixed seat 542, and then the second fixed seat 542 drives the spline shaft 541 to move upward.

[0052] Referring to Figure 5 , Figure 9 and Figure 10 , the adjusting mechanism 4 includes two groups of pushing plates 43 which can move close to or away from each other.

[0053] The pushing plates 43 are installed on the inner side of the shell 3, and the pushing plates 43 are located at the top of the telescopic conveying belt 1.

[0054] When the two groups of pushing plates 43 move close to each other, the pushing plates 43 can clamp the workpiece on both sides, and the two groups of pushing plates 43 cooperate to make the workpiece be at the center of the upper end surface of the telescopic conveying belt 1. Thus, the workpiece on the upper end surface of the telescopic conveying belt 1 can move along the center line of the telescopic conveying belt 1, effectively avoiding the deviation of the workpiece, so that the telescopic conveying belt 1 can accurately convey the workpiece into the furnace cavity.

[0055] Referring to Figure 5 , Figure 8 , Figure 9 and Figure 10As shown in the figure, the two sides of the telescopic conveying belt 1 are symmetrically provided with limiting sliding grooves 11, and the inside of the limiting sliding grooves 11 is provided with moving frames 41 capable of moving close to each other or moving away from each other, and the moving frames 41 have two groups;

[0056] The top end of the moving frame 41 is symmetrically provided with folding frames 411 capable of unfolding or folding, and one end of the folding frame 411 is hinged on the rotating pushing plate 43;

[0057] The other end of the folding frame 411 is hinged on the upper end face of the first fixed seat 42.

[0058] When the moving frames 41 move close to each other, the displacement amount of the moving frames 41 is converted into the unfolding action of the folding frames 411 through the hinge points. During the unfolding process of the folding frames 411, the free end of the folding frames 411 rotates around the first fixed seat 42, synchronously pushing the pushing plates 43 to displace towards the center line direction of the telescopic conveying belt 1, realizing that the two groups of pushing plates 43 move close to each other, so that the two groups of pushing plates 43 push the workpieces, so that the workpieces can be located at the center of the top of the telescopic conveying belt 1. When the moving frames 41 move away from each other, the displacement amount of the moving frames 41 is converted into the folding action of the folding frames 411 through the hinge points, so that the folding frames 411 drive the pushing plates 43 to move away from each other, so that the pushing plates 43 release the workpieces.

[0059] Referring to Figure 10 As shown in the figure, two groups of first fixed seats 42 are respectively installed at positions close to the bottom on both sides of the shell 3, and the top end of the first fixed seat 42 is provided with a limiting sliding sleeve 421;

[0060] One side of the pushing plate 43 is symmetrically fixed with two first limiting sliding rods 431 capable of being inserted into the limiting sliding sleeve 421, and the first limiting sliding rod 431 is in sliding fit with the limiting sliding sleeve 421.

[0061] In order to ensure the stability of the pushing plate 43, two groups of first limiting sliding rods 431 are symmetrically fixed on one side of the pushing plate 43, and then the first limiting sliding rod 431 is installed in the limiting sliding sleeve 421. When the pushing plate 43 moves, the pushing plate 43 drives the first limiting sliding rod 431 to slide along the limiting sliding sleeve 421, so that the limiting sliding sleeve 421 and the first limiting sliding rod 431 cooperate with each other to limit the pushing plate 43. Avoiding the deviation of the pushing plate 43, effectively ensuring the stability of the pushing plate 43.

[0062] Referring to Figure 9 As shown in the figure, the telescopic conveying belt 1 is provided with a sliding block 45 capable of reciprocating in the horizontal direction, and the two sides of the sliding block 45 are hinged with push-pull rods 44, and one end of the push-pull rod 44 away from the sliding block 45 is hinged with the moving frame 41.

[0063] The reciprocating movement of the slider 45 enables the slider 45 to drive the moving frame 41 to move synchronously through the articulated push-pull rod 44. When the slider 45 moves in the first direction, the push-pull rod 44 rotates around the intersection with the slider 45, so that the push-pull rod 44 pushes the moving frame 41 to slide inside the limiting sliding groove 11; when the slider 45 reverses, the push-pull rod 44 rotates reversely around the intersection with the slider 45, so that the push-pull rod 44 pulls the moving frame 41 to slide reversely inside the limiting sliding groove 11. The transmission mechanism realizes the accurate control of the moving frame 41 in the bidirectional displacement interval through the motion coupling of the slider 45 and the push-pull rod 44, so that the slider 45 and the push-pull rod 44 cooperate to drive the moving frame 41 to move closer to or farther away from each other.

[0064] Referring to Figure 4 As shown, the inside of the telescopic conveyor belt 1 is horizontally fixed with a cross plate 14, and the lower end face of the cross plate 14 is fixed with a second sliding rail 61 for limiting the movement direction of the slider 45, and the slider 45 is slidingly installed on the second sliding rail 61;

[0065] The side of the slider 45 close to the second sliding rail 61 is fixed with a hydraulic telescopic piece 6 for driving the slider 45 to move reciprocally, and the telescopic end of the hydraulic telescopic piece 6 is fixedly connected with the slider 45.

[0066] In order to realize the reciprocating movement of the slider 45, the slider 45 is slidingly installed on the second sliding rail 61, and then one side of the slider 45 is fixed with the telescopic end of the hydraulic telescopic piece 6. When the hydraulic telescopic piece 6 performs the extension or retraction action, the hydraulic telescopic piece 6 drives the slider 45 to move linearly along the axis of the second sliding rail 61 through the telescopic end, so as to realize the reciprocating movement of the slider 45 along the central axis of the second sliding rail 61. Moreover, the displacement of the slider 45 is avoided. The stability of the slider 45 is effectively ensured.

[0067] Referring to Figure 2 and Figure 4 As shown, the upper end face inside the housing 3 is horizontally installed with a first sliding rail 31 for limiting the movement direction of the sliding table 51, and the sliding table 51 is slidingly installed on the first sliding rail 31;

[0068] The upper end face inside the housing 3 is fixed with a telescopic cylinder 32 for driving the sliding table 51 to move reciprocally along the first sliding rail 31, and the telescopic end of the telescopic cylinder 32 is fixedly connected with the sliding table 51.

[0069] In order to realize the reciprocating movement of the sliding table 51 along the horizontal direction, the top of the sliding table 51 is slidingly installed on the first sliding rail 31, and then the top of the sliding table 51 is fixedly connected with the telescopic end of the telescopic cylinder 32. When the telescopic end of the telescopic cylinder 32 is telescopic, the telescopic cylinder 32 can drive the sliding table 51 to move reciprocally along the central axis of the first sliding rail 31.

[0070] Working principle: by placing the workpiece on the telescopic conveyor belt 1, so that the telescopic conveyor belt 1 drives the workpiece to move at a constant speed. When the workpiece moves to the inside of the shell 3, the sliding table 51 reciprocatingly moves along the first sliding rail 31 under the drive of the telescopic cylinder 32, and the two groups of lower pressing plates 52 on the bottom of the sliding table 51 are in contact with the limiting roller 544 on the top of the spline shaft 541 through the inclined surface 521, forming dynamic linkage. When the sliding table 51 moves laterally, the two groups of spline shafts 541 produce alternating lifting through the differential action of the inclined surface 521, so that the spline shafts 541 drive the bottom blocking plate 57 to move synchronously, realizing the time-sharing blocking and releasing of the workpiece. When the workpiece enters between the two groups of pushing plates 43, the hydraulic telescopic part 6 drives the sliding block 45 to move along the center axis of the second sliding rail 61 through the telescopic end. At the same time, the sliding block 45 drives the moving frame 41 to slide along the limiting sliding groove 11 through the push-pull rod 44, so that the moving frame 41 drives the folding frame 411 to unfold or fold. Then the two groups of pushing plates 43 are driven to move close to or away from each other by the folding frame 411, so that the two groups of pushing plates 43 cooperate to push the workpiece, so that the workpiece is in the center of the upper end surface of the telescopic conveyor belt 1, and finally the workpiece is conveyed to the inside of the furnace cavity by the extension end of the telescopic conveyor belt 1.

[0071] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A feeding mechanism for use between a constant temperature furnace and a heating furnace, comprising a telescopic conveyor belt (1), a housing (3) disposed on top of the telescopic conveyor belt (1), a limiting mechanism (5) disposed inside the housing (3), and an adjusting mechanism (4) disposed on top of the telescopic conveyor belt (1) for adjusting the position of the workpiece, characterized in that, The housing (3) is horizontally mounted with a fixing plate (53). The fixing plate (53) has symmetrically opened limiting holes (531) at the center of both sides, which can penetrate its upper and lower surfaces. The limiting mechanism (5) further includes two sets of limiting components (54). The two sets of limiting components (54) include a spline shaft (541) installed longitudinally in the limiting hole (531). A baffle plate (57) for blocking material is installed at the bottom end of the spline shaft (541). A slide table (51) that can reciprocate in the horizontal direction is slidably provided on the top of the inner side of the housing (3). Two sets of lower pressure plates (52) are installed longitudinally on the bottom of the slide table (51). The two sets of lower pressure plates (52) are arranged parallel to each other. An inclined inclined surface (521) is opened at the bottom of the two sets of lower pressure plates (52). The inclined surface (521) contacts the top of the spline shaft (541).

2. The feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 1, characterized in that, The top end of the spline shaft (541) is fixed with a second fixed seat (542), and a mounting shaft (543) is horizontally arranged on one side of the second fixed seat (542). A rotatable limiting roller (544) is mounted on the mounting shaft (543), and the limiting roller (544) can travel along the inclined surface (521).

3. A feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 1, characterized in that, A limiting plate (545) is fixed at the bottom end of the spline shaft (541), and a sliding hole (546) is longitudinally opened on the side of the limiting plate (545) near the spline shaft (541). The baffle plate (57) is longitudinally fixed with a second limiting slide rod (571) that can slide and cooperate with the sliding hole (546); The top of the baffle plate (57) is provided with a second return spring (56), which is fitted onto the spline shaft (541).

4. A feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 2, characterized in that, The bottom of the second fixed seat (542) is provided with a first return spring (55), which is fitted onto the spline shaft (541).

5. A feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 1, characterized in that, The adjustment mechanism (4) includes a pusher plate (43), which has two sets and can move closer to or further away from each other; The pusher plate (43) is installed inside the housing (3) and is located on top of the telescopic conveyor belt (1).

6. A feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 1, characterized in that, The telescopic conveyor belt (1) has symmetrically opened limit grooves (11) on both sides. The limit grooves (11) are equipped with movable frames (41) that can move closer to or further away from each other. There are two sets of movable frames (41). The top of the movable frame (41) is symmetrically provided with a folding frame (411) that can be unfolded or retracted, and one end of the folding frame (411) is hinged to the rotating push plate (43); The other end of the folding frame (411) is hinged to the upper surface of the first fixed seat (42).

7. A feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 5, characterized in that, Two sets of first fixing seats (42) are installed on both sides of the housing (3) near the bottom, and the top of the first fixing seat (42) is provided with a limit sleeve (421). Two first limiting slide rods (431) that can be inserted into the limiting slide sleeve (421) are symmetrically fixed on one side of the pusher plate (43). The first limiting slide rods (431) slide in cooperation with the limiting slide sleeve (421).

8. A feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 1, characterized in that, The telescopic conveyor belt (1) is equipped with a slider (45) that can move back and forth in the horizontal direction. Push-pull rods (44) are hinged on both sides of the slider (45). The end of the push-pull rod (44) away from the slider (45) is hinged to the moving frame (41).

9. A feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 1, characterized in that, The telescopic conveyor belt (1) has a horizontally fixed transverse plate (14) inside. The lower end face of the transverse plate (14) is fixed with a second slide rail (61) for limiting the movement direction of the slider (45). The slider (45) is slidably mounted on the second slide rail (61). A hydraulic telescopic component (6) for driving the slider (45) to reciprocate is fixed on the side of the lower end face of the horizontal plate (14) near the second slide rail (61). The telescopic end of the hydraulic telescopic component (6) is fixedly connected to the slider (45).

10. A feeding mechanism for use between a constant temperature furnace and a heating furnace according to claim 1, characterized in that, The upper end face inside the housing (3) is horizontally mounted with a first slide rail (31) for limiting the movement direction of the slide table (51), and the slide table (51) is slidably mounted on the first slide rail (31). The upper end face inside the housing (3) is fixed with a telescopic cylinder (32) for driving the slide (51) to move back and forth along the first slide rail (31). The telescopic end of the telescopic cylinder (32) is fixedly connected to the slide (51).

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