Box body automatic centering conveying equipment of refrigerator foaming line

Abstract

The invention discloses automatic box centering and conveying equipment of a refrigerator foaming line, and belongs to the technical field of foaming refrigerator production. The device comprises a feeding bearing mechanism. The feeding bearing mechanism comprises a bearing unit used for bearing the bottom of a box body and a side edge supporting unit used for adjusting the posture of the box body. Each side edge supporting unit comprises two symmetrically arranged supporting frames, one side of each supporting frame is provided with a mounting frame, the two sides of each mounting frame are each rotationally provided with a contact frame, and one side of each contact frame is provided with a plurality of abutting and pushing contact pieces; the inner wall of the mounting frame is provided with a drive control assembly used for driving the contact frame. By arranging the feeding bearing mechanism, the refrigerator box body is fed and conveyed to the position of the foaming mold, and the position of the cooling box body is adjusted in the conveying process, so that stable centering of the refrigerator box body and the inner mold part of the foaming mold is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of foamed refrigerator manufacturing technology, and in particular to an automatic centering and conveying device for refrigerator foaming lines. Background Technology

[0002] The basic structure of a foamed refrigerator box typically includes a thin outer shell and an inner liner. During the foaming process, the inner and outer molds of the foaming mold limit the inner cavity and the outer side, respectively, and then the foaming material is injected into the cavity between the outer shell and the inner liner.

[0003] Before the foaming material is injected, the cavity between the outer shell and the inner liner lacks foam support, making it susceptible to deformation under external forces. Therefore, if deviations occur during the alignment process (such as tilting or horizontal offset), the entry of the inner and outer molds into the cabinet and the extrusion operation will cause deformation of the cabinet structure. Deviations in the alignment process of ordinary cabinets may only affect aesthetics or subsequent assembly, but foaming is a chemical reaction, and once the foaming material is injected, it is irreversible. Deformation caused by deviations will directly render the foamed cabinet unusable. Therefore, it is necessary to propose an automatic alignment and conveying device for the foaming line of refrigerated cabinets. Summary of the Invention

[0004] This invention provides an automatic centering and conveying device for the cabinet of a refrigerator foaming line, which can solve the problem of insufficient centering accuracy of the refrigerator cabinet after being conveyed to the foaming mold in the prior art, resulting in deformation and damage during the mold limiting process.

[0005] This invention provides an automatic centering and conveying device for a refrigerator foaming line, comprising a conveying platform. A conveying trough is formed on one side of the top of the conveying platform, and several conveying rollers are rotatably mounted on the inner wall of the conveying trough. A feeding support mechanism is provided on the other side of the top of the conveying platform. The feeding support mechanism includes a support unit for supporting the bottom of the refrigerator body and a side support unit for adjusting the posture of the refrigerator body. The side support unit includes two symmetrically arranged support frames. A mounting frame is provided on one side of each support frame. Contact frames are rotatably mounted on both sides of each mounting frame. A shift plate is slidably connected to the middle of each contact frame. Several pushing contact elements are provided on one side of each contact frame and one side of each shift plate. A drive control component for driving the contact frames is provided on the inner wall of the mounting frame.

[0006] As a further aspect of the present invention: the pushing contact includes a pushing rod, the end of the pushing rod is fixedly connected to a contact block, the middle of the contact block is provided with an air hole, the inside of the air hole is fixedly connected to a diverting air pipe, one end of several diverting air pipes is connected to a side air pipe, one end of the side air pipe is fixedly connected to the output end of an external air pump, and a distance measuring sensor is embedded on one side of several of the contact blocks.

[0007] As a further aspect of the present invention: the drive control component includes a reinforcing plate, and two sets of control components are respectively arranged on both sides of the reinforcing plate. The two sets of control components are used to control the rotation of the two contact frames. The control components include two symmetrically arranged servo motors. The output ends of the two servo motors are fixedly connected to end docking plates, and one end of each end docking plate is fixedly connected to the contact frame.

[0008] As a further embodiment of the present invention: locking rods are fixedly connected to the edges of the two contact frames near the mounting frame, one end of each locking rod extends into the mounting frame and is fixedly connected to a positioning gear, locking push rods are fixedly connected to both sides of the reinforcing plate, locking pressure plates are fixedly connected to the output ends of the two locking push rods, and toothed grooves are provided on the inner walls of the two locking pressure plates, with the two locking pressure plates respectively corresponding to one side of the two positioning gears.

[0009] As a further aspect of the present invention: the supporting unit includes a supporting plate, the top of the supporting plate is provided with a plurality of air supply nozzles, the inside of the supporting plate is provided with an air supply chamber, one side of the air supply chamber is fixedly connected to an air inlet pipe, an adjusting push rod is fixedly installed on one side of the top of the supporting plate, the output end of the adjusting push rod is fixedly connected to a movable plate, and a flipping motor is embedded on the other side of the top of the supporting plate, the output end of the flipping motor is fixedly connected to a flipping limit plate.

[0010] As a further embodiment of the present invention: a base plate is fixedly connected to the bottom of the support plate, a movable groove is provided below the base plate, a push guide rail is fixedly installed in the middle of the inner wall of the movable groove, the output end of the push guide rail is fixedly connected to the bottom of the base plate, and the top two sides of the base plate are respectively fixedly connected to the bottom of two support frames.

[0011] As a further aspect of the present invention: a pre-alignment mechanism is provided in the middle of the conveying platform. The pre-alignment mechanism includes a central groove. An outer adjusting frame is slidably connected to the inner wall of the central groove. An outer pushing cylinder is fixedly connected to the bottom of the outer adjusting frame. A plurality of outer adjusting rollers are rotatably mounted on the top of the outer adjusting frame. A plurality of through grooves are provided between the plurality of outer adjusting rollers. An inner pushing cylinder is provided below the central groove. An inner adjusting frame is fixedly connected to the output end of the inner pushing cylinder. A plurality of lifting blocks are fixedly connected to the top of the inner adjusting frame. An inner adjusting roller is rotatably mounted on the top of each of the lifting blocks. A plurality of inclined pushing blocks are fixedly connected to the outer walls of both the outer and inner adjusting rollers. The inclination directions of the pushing blocks on the outer and inner adjusting rollers are opposite.

[0012] As a further embodiment of the present invention: a transverse guide rail is fixedly installed on the middle of one side of each of the two support frames, and a sliding seat plate is slidably installed on the inner wall of the transverse guide rail, with one side of the sliding seat plate being fixedly connected to the mounting frame.

[0013] As a further aspect of the present invention: roller grooves are provided on both sides of the central groove, and side rollers are rotatably installed on the inner walls of both roller grooves.

[0014] As a further aspect of the present invention: a detection baffle is fixedly connected to the side of each of the two roller grooves away from the central groove, and a distance sensor is fixedly installed on the top of each of the two detection baffles.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the present invention sets up a feeding support mechanism to feed and transport the freezer body to the foaming mold position, and adjusts the position of the cooling box during the transportation process to ensure stable alignment between the freezer body and the inner mold part of the foaming mold; This invention uses air holes and diversion pipes to fine-tune the posture of the freezer body when it is placed on the support plate by blowing air. With the help of a servo motor, the end docking plate is rotated, which in turn drives the contact frame to flip, so as to achieve accurate control of the position of the contact frame and the pushing contact on it, ensuring that the pushing contact has sufficient contact force. This invention, by setting up a pre-alignment mechanism, performs preliminary alignment adjustments on the freezer body during transport. Several external or internal adjusting rollers simultaneously support the freezer body, distributing the force and avoiding the problem of excessive localized force and deformation of the freezer body caused by the side-applying pushing component in conventional alignment methods. The external and internal adjusting rollers can drive the freezer body to move laterally in different directions, thereby achieving the correction and adjustment of the freezer body's position. Attached Figure Description

[0016] Figure 1 The three-dimensional representation of the present invention Figure 1 ; Figure 2 This is a schematic diagram of the side support unit of the present invention; Figure 3 This is a perspective view of the pushing contact element of the present invention; Figure 4 This is a schematic diagram of the internal structure of the mounting bracket of the present invention; Figure 5 This is a schematic diagram of the contact frame in rotation state according to the present invention; Figure 6 The three-dimensional representation of the present invention Figure 2 ; Figure 7 This is a perspective view of the pre-alignment mechanism of the present invention; Figure 8 This is a schematic diagram of the bottom structure of the pre-alignment mechanism of the present invention; Figure 9 This is a cross-sectional view of the present invention; Figure 10 The three-dimensional representation of the present invention Figure 3 Explanation of reference numerals in the attached figures: 101. Conveyor table; 102. Conveyor roller; 103. Base frame; 2. Pre-alignment mechanism; 201. Center groove; 202. Outer adjusting frame; 203. Outer adjusting roller; 204. Pushing block; 205. Lifting block; 206. Outer pushing cylinder; 207. Inner adjusting frame; 208. Inner pushing cylinder; 209. Ventilation chamber; 210. Ventilation pipe; 211. Side roller; 212. Detection baffle; 213. Distance sensor; 214. Inner adjusting roller; 215. Outlet; 3. Support unit; 301. Edge baffle; 302. Support plate; 303. Air nozzle; 304. Movable plate; 305. Tilting limit plate; 306. Push guide rail; 4. Side support unit; 401. Support frame; 402. Transverse guide rail; 403. Drive control assembly; 4031. Reinforcing plate; 4032. End docking plate; 4034. Servo motor; 4035. Locking rod; 4036. Positioning gear; 4037. Locking push rod; 4038. Locking pressure plate; 404. Contact frame; 405. Pushing contact element; 4051. Push rod; 4052. Contact block; 4053. Air hole; 4054. Distance sensor; 406. Shift plate; 407. Mounting bracket; 5. Refrigerator body. Detailed Implementation

[0017] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0018] like Figure 1 As shown in the figure, the present invention provides an automatic centering and conveying device for the body of a refrigerator foaming line, including a conveying platform 101. A conveying groove is provided on one side of the top of the conveying platform 101. A plurality of conveying rollers 102 are rotatably installed on the inner wall of the conveying groove. The top surface of the conveying rollers 102 is higher than the top surface of the conveying platform 101 to avoid frictional contact between the bottom surface of the refrigerator body 5 and the conveying platform 101. A feeding support mechanism is provided on the other side of the top of the conveying platform 101. The feeding support mechanism is used to feed and convey the refrigerator body 5 to the foaming mold position, and to adjust the position of the refrigerator body during the conveying process to ensure stable centering between the refrigerator body 5 and the inner mold part of the foaming mold. The feeding support mechanism includes a support unit 3 for supporting the bottom of the body and a side support unit 4 for adjusting the posture of the body. A base frame 103 is fixedly connected to both sides of the bottom of the conveying platform 101 to achieve ground-free support for the entire device.

[0019] The supporting unit 3 includes a supporting plate 302. Several air delivery nozzles 303 are embedded in the top of the supporting plate 302. The top surface of the air delivery nozzles 303 is lower than the top surface of the supporting plate 302, so as to provide space for the airflow delivered by the air delivery nozzles 303 and avoid the bottom of the refrigerator body 5 from directly contacting the air delivery nozzles 303 and causing the air delivery nozzles 303 to be blocked. An air delivery chamber is opened inside the supporting plate 302. An air inlet pipe is fixedly connected to one side of the air delivery chamber. One end of the air inlet pipe is connected to the output end of an external air pump. The air inlet pipe is a flexible hose to facilitate stable airflow access to the supporting plate 302 during movement.

[0020] In one embodiment, to achieve initial positioning of the freezer body 5, an adjusting push rod is fixedly installed on one side of the top of the support plate 302. The output end of the adjusting push rod is fixedly connected to a movable plate 304. A flipping motor is embedded on the other side of the top of the support plate 302. The output end of the flipping motor is fixedly connected to a flipping limiting plate 305. By adjusting the push rod, the movable plate 304 is moved laterally. In conjunction with the flipping and lifting of the flipping limiting plate 305, the two ends of the freezer body 5 are blocked and limited, ensuring the basic accuracy of the longitudinal position of the freezer body 5.

[0021] In one embodiment, a base plate is fixedly connected to the bottom of the support plate 302, and a movable groove is provided below the base plate. A push guide rail 306 is fixedly installed in the middle of the inner wall of the movable groove. The output end of the push guide rail 306 is fixedly connected to the bottom of the base plate, and the top two sides of the base plate are fixedly connected to the bottom of two support frames 401 respectively. By setting the push guide rail 306, the base plate, support plate 302, and the upper side support unit 4 and other structures are moved as a whole, and the cooling box is transported into the foaming mold, so that the top of the refrigerator box 5 can be accurately aligned with the bottom of the inner mold. The state after the whole is moved out is as follows. Figure 10 As shown, after the freezer body 5 is placed inside the foaming mold, the push guide rail 306 drives the whole body to reset, so as to avoid hindering the subsequent movement of the foaming mold.

[0022] In one embodiment, see Figure 2The side support unit 4 includes two symmetrically arranged support frames 401. Each support frame 401 has a mounting frame 407 on one side. Contact frames 404 are rotatably mounted on both sides of the mounting frame 407. A shift plate 406 is slidably connected to the middle of the contact frame 404. Several pushing contact elements 405 are provided on one side of the contact frame 404 and one side of the shift plate 406. A drive control assembly 403 for driving the contact frame 404 is provided on the inner wall of the mounting frame 407. 03 drives the contact frame 404 to rotate, so that several pushing contact parts 405 can simultaneously contact the refrigerator body 5. While realizing the adjustment of the position of the cooling box, the contact force is more dispersed to avoid deformation caused by local force on the refrigerator body 5. In order to improve the stability of the support frame 401 during the displacement process, edge baffles 301 are fixedly connected to both sides of the end of the conveyor table 101. The side of the two support frames 401 away from the mounting frame 407 is slidably connected to the two edge baffles 301 respectively.

[0023] In one embodiment, a transverse guide rail 402 is fixedly installed on the middle of one side of each of the two support frames 401. A sliding seat plate is slidably installed on the inner wall of the transverse guide rail 402. One side of the sliding seat plate is fixedly connected to the mounting frame 407. Thus, the pushing of the transverse guide rail 402 drives the mounting frame 407 and the two side contact frames 404 to move as a whole, thereby driving the translation of each pushing contact piece 405 to push the freezer body 5. This helps to adjust the position and posture of the freezer body 5 during the docking process between the inner mold and the freezer body 5, improving the accuracy of alignment. In conjunction with the drive control component 403, the contact frame 404 is rotated, so that the contact frame 404 can contact and push the end position of the body to correct. For specific details, please refer to [reference needed]. Figure 5 .

[0024] In one embodiment, see Figure 3 The push contact 405 includes a push rod 4051, with a contact block 4052 fixedly connected to the end of the push rod 4051. The contact block 4052 is a rubber block, and an air hole 4053 is opened in the middle of the contact block 4052. A diversion air pipe is fixedly connected inside the air hole 4053. One end of several diversion air pipes is connected to a side air pipe, and one end of the side air pipe is fixedly connected to the output end of an external air pump. Before the inner mold contacts the freezer body 5, air is supplied through the support plate 302. The air supply operation of the nozzle 303 ensures that the freezer body 5 and the support plate 302 are in a low-pressure contact state. Therefore, the position adjustment of the freezer body 5 does not require a large force. This application uses air holes 4053 and diversion air pipes to make fine adjustments to the posture of the freezer body 5 when it is placed on the support plate 302 by blowing air. In order to determine the position and posture of the freezer body 5, a distance sensor 4054 is embedded on one side of several contact blocks 4052.

[0025] In one embodiment, see Figure 4 The drive control component 403 includes a reinforcing plate 4031. Two sets of control components are respectively arranged on both sides of the reinforcing plate 4031. The two sets of control components are used to control the rotation of the two contact frames 404. The control components include two symmetrically arranged servo motors 4034. The output ends of the two servo motors 4034 are fixedly connected to end docking plates 4032. One end of the end docking plates 4032 is fixedly connected to the contact frame 404. By driving the servo motors 4034, the end docking plates 4032 are rotated, which in turn drives the contact frame 404 to rotate, thereby realizing accurate control of the position of the contact frame 404 and the pushing contact 405 on it.

[0026] In one embodiment, since the position of the freezer body 5 needs to be adjusted by the pushing contact 405 against the freezer body 5, it is necessary to limit the pushing contact 405 to ensure that it has sufficient contact force. In this application, locking rods 4035 are fixedly connected to the edges of the two contact frames 404 near the mounting frame 407. One end of each locking rod 4035 extends into the mounting frame 407 and is fixedly connected to a positioning gear 4036. Locking push rods 40 are fixedly connected to both sides of the reinforcing plate 4031. 37. The output ends of the two locking push rods 4037 are fixedly connected to locking pressure plates 4038. The inner walls of the two locking pressure plates 4038 are provided with toothed grooves. The two locking pressure plates 4038 are respectively set on one side of the two positioning gears 4036. The locking push rods 4037 drive the locking pressure plates 4038 to move towards the positioning gears 4036. The toothed grooves contact and abut against the positioning gears 4036 to limit the positioning gears 4036, thereby ensuring the stability of the positions of the locking rods 4035 and the contact frame 404.

[0027] In one embodiment, see Figure 6 , Figure 7 and Figure 8To perform preliminary centering adjustments on the freezer cabinet 5 during transport, this application provides a pre-centering mechanism 2 in the middle of the transport platform 101. The pre-centering mechanism 2 includes a central groove 201. An outer adjusting frame 202 is slidably connected to the inner wall of the central groove 201. An outer pushing cylinder 206 is fixedly connected to the bottom of the outer adjusting frame 202. Several outer adjusting rollers 203 are rotatably mounted on the top of the outer adjusting frame 202. Several through grooves are provided between the several outer adjusting rollers 203. An inner pushing cylinder 208 is provided below the central groove 201. An inner adjusting frame 207 is fixedly connected to the output end of the inner pushing cylinder 208. Several lifting blocks 205 are fixedly connected to the top of the inner adjusting frame 207. An inner adjusting roller 214 is rotatably mounted on the top of each of the lifting blocks 205. Several outer adjusting rollers 214 are fixedly connected to the outer walls of the outer adjusting rollers 203 and the inner adjusting rollers 214. A push block 204 is inclined, and the outer adjusting roller 203 and the inner adjusting roller 214 have opposite inclination directions. In this way, the outer adjusting roller 203 and the inner adjusting roller 214 can drive the freezer body 5 to move laterally in different directions, thereby realizing the correction and adjustment of the position of the freezer body 5. Several outer adjusting rollers 203 or inner adjusting rollers 214 simultaneously support the freezer body 5, dispersing the force and avoiding the problem of excessive local force and deformation of the freezer body 5 caused by the side application of the push component in the conventional centering method. The pre-centering mechanism 2 of this application adjusts the height of the inner adjusting frame 207 and the outer adjusting frame 202 through the inner pushing cylinder 208 and the outer pushing cylinder 206, respectively. It can drive the outer adjusting roller 203 or the inner adjusting roller 214 to rise as needed to complete the displacement adjustment of the freezer body 5.

[0028] In one embodiment, see Figure 9 In one embodiment, ventilation chambers 209 can be opened below the outer adjusting roller 203 and the inner adjusting roller 214, that is, inside the outer adjusting frame 202 and the inner lifting block 205. Each of the ventilation chambers 209 has an outlet 215 at both ends, and a ventilation pipe 210 is fixedly connected to the inner wall of each of the ventilation chambers 209. In this way, by sending airflow into the ventilation pipe 210 and sending it out through the outlet 215, the refrigerator body 5 is supported by air supply, thereby reducing the pressure between it and the push block 204, making it easier to push and move the refrigerator body 5.

[0029] Please see Figure 6 and Figure 7 To ensure stable support for the freezer body 5 during the horizontal adjustment process, roller grooves are provided on both sides of the central groove 201. Side rollers 211 are rotatably installed on the inner walls of the two roller grooves. The top height of the side rollers 211 is the same as the top height of the conveyor rollers 102.

[0030] In one embodiment, in order to detect the position of the freezer body 5 in real time during the horizontal adjustment process so as to achieve accurate correction adjustment, a detection baffle 212 is fixedly connected to the side of the two roller grooves away from the center groove 201, and a number of distance sensors 213 are fixedly installed on the top of the two detection baffles 212.

[0031] In use, the refrigerator body 5 is placed on the conveyor roller 102 by manual operation or external feeding equipment. The rotation of the conveyor roller 102 drives the refrigerator body 5 to move until the refrigerator body 5 moves above the center groove 201. At this time, the side rollers 211 on both sides support the refrigerator body 5. At the same time, the distance sensors 213 on both sides detect the position and posture of the refrigerator body 5. When the distance data detected by the distance sensors 213 of the refrigerator body 5 deviates from the allowable range, the outer push cylinder 206 (or the inner push cylinder 208) drives the outer adjustment frame 202 (inner adjustment frame 207) to rise, so that the outer adjustment roller 203 (inner adjustment roller 214) rises, so that the push block 204 on it contacts the bottom of the refrigerator body 5. By rotating the tilted push block 204, the refrigerator body 5 is moved laterally, realizing the initial adjustment of the position of the refrigerator body 5. Then, airflow is delivered into the inner cavity of the support plate 302 through the air inlet pipe, and then sent out through the air delivery nozzle 303. The rotation of the side roller 211 continues to drive the freezer body 5 to move, so that it enters the support plate 302. The flip motor drives the flip limit plate 305 to be lifted vertically, and then the adjusting push rod drives the movable plate 304 to move until the movable plate 304 pushes the freezer body 5 to move until the freezer body 5 contacts the flip limit plate 305, thus achieving the initial limitation of the freezer body 5. By setting the push guide rail 306 to drive the bottom plate, support plate 302 and its side support unit 4 and other structures to move as a whole, the cooling box is transported into the foaming mold, so that the top of the freezer box 5 can be accurately aligned with the bottom of the inner mold. At this time, airflow is sent in through the side air pipe and sent out through the through holes on several abutment blocks on both sides. With the help of the displacement sensor, the position of the freezer box 5 can be finely adjusted. The foaming mold then drives the inner mold to slowly move downwards, gradually inserting it into the inner cavity of the freezer body 5. During the insertion process, if the displacement sensor detects that the freezer body 5 has shifted, the servo motor 4034 drives the contact frame 404 to rotate, so that several push blocks directly contact the freezer body 5, thereby applying pressure to the freezer body 5. The operator can then adjust the position of the freezer body 5. After the freezer body 5 is completely nested with the inner mold, the outer mold assembly of the foaming mold and other external support mechanisms stabilize and limit the position of the freezer body 5. Then, the push guide rail 306 drives the bottom plate and the feeding receiving mechanism to reset as a whole, so as to avoid obstructing the subsequent movement of the foaming mold.

[0032] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An automatic centering and conveying device for the body of a refrigerator foaming line, characterized in that, The system includes a conveyor platform (101), on one side of the top of which is a conveying trough. Several conveying rollers (102) are rotatably mounted on the inner wall of the conveying trough. On the other side of the top of the conveyor platform (101) is a feeding support mechanism, which includes a support unit (3) for supporting the bottom of the box and a side support unit (4) for adjusting the box's posture. The side support unit (4) includes two symmetrically arranged support frames (401). A mounting bracket (407) is provided on one side of the support frame (401), and a contact frame (404) is rotatably mounted on both sides of the mounting bracket (407). A shift plate (406) is slidably connected to the middle of the contact frame (404). A plurality of pushing contact elements (405) are provided on one side of the contact frame (404) and one side of the shift plate (406). A drive control component (403) for driving the contact frame (404) is provided on the inner wall of the mounting bracket (407).

2. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 1, characterized in that, The push contact (405) includes a push rod (4051), the end of which is fixedly connected to a contact block (4052), and the middle of the contact block (4052) is provided with an air hole (4053). A diversion air pipe is fixedly connected inside the air hole (4053), and one end of several diversion air pipes is connected to a side air pipe.

3. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 1, characterized in that, The drive control component (403) includes a reinforcing plate (4031). Two sets of control components are respectively provided on both sides of the reinforcing plate (4031). The two sets of control components are used to control the rotation of the two contact frames (404). The control components include two symmetrically arranged servo motors (4034). The output ends of the two servo motors (4034) are fixedly connected to end docking plates (4032). One end of the end docking plates (4032) is fixedly connected to the contact frames (404).

4. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 3, characterized in that, Locking rods (4035) are fixedly connected to the edges of the two contact frames (404) near the mounting frame (407). One end of each locking rod (4035) extends into the mounting frame (407) and is fixedly connected to a positioning gear (4036). Locking push rods (4037) are fixedly connected to both sides of the reinforcing plate (4031). Locking pressure plates (4038) are fixedly connected to the output ends of the two locking push rods (4037). The inner walls of the two locking pressure plates (4038) are provided with toothed grooves. The two locking pressure plates (4038) are respectively set to correspond to one side of the two positioning gears (4036).

5. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 1, characterized in that, The supporting unit (3) includes a supporting plate (302), a plurality of air supply nozzles (303) are embedded in the top of the supporting plate (302), an air supply chamber is opened inside the supporting plate (302), an air inlet pipe is fixedly connected to one side of the air supply chamber, an adjusting push rod is fixedly installed on one side of the top of the supporting plate (302), a movable plate (304) is fixedly connected to the output end of the adjusting push rod, and a flipping motor is embedded in the other side of the top of the supporting plate (302), a flipping limit plate (305) is fixedly connected to the output end of the flipping motor.

6. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 5, characterized in that, The bottom of the support plate (302) is fixedly connected to a base plate, and a movable groove is provided below the base plate. A push guide rail (306) is fixedly installed in the middle of the inner wall of the movable groove. The output end of the push guide rail (306) is fixedly connected to the bottom of the base plate, and the top two sides of the base plate are fixedly connected to the bottom of two support frames (401) respectively.

7. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 1, characterized in that, A pre-alignment mechanism (2) is provided in the middle of the conveyor table (101). The pre-alignment mechanism (2) includes a central groove (201). An outer adjusting frame (202) is slidably connected to the inner wall of the central groove (201). An outer pushing cylinder (206) is fixedly connected to the bottom of the outer adjusting frame (202). Several outer adjusting rollers (203) are rotatably installed on the top of the outer adjusting frame (202). Several through grooves are provided between the several outer adjusting rollers (203). An inner pushing cylinder (208) is provided below the central groove (201). The output end of the inner push cylinder (208) is fixedly connected to an inner adjustment frame (207). Several lifting blocks (205) are fixedly connected to the top of the inner adjustment frame (207). An inner adjustment roller (214) is rotatably installed on the top of each of the lifting blocks (205). Several inclined push blocks (204) are fixedly connected to the outer walls of the outer adjustment roller (203) and the inner adjustment roller (214). The inclination direction of the push blocks (204) on the outer adjustment roller (203) is opposite to that of the inner adjustment roller (214).

8. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 1, characterized in that, A transverse guide rail (402) is fixedly installed on the middle of one side of each of the two support frames (401). A sliding seat plate is slidably installed on the inner wall of the transverse guide rail (402), and one side of the sliding seat plate is fixedly connected to the mounting frame (407).

9. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 7, characterized in that, Roller grooves are provided on both sides of the central groove (201), and side rollers (211) are rotatably installed on the inner walls of the two roller grooves.

10. The automatic centering and conveying equipment for the body of a refrigerator foaming line as described in claim 9, characterized in that, A detection baffle (212) is fixedly connected to the side of each of the two roller grooves away from the central groove (201), and a distance sensor (213) is fixedly installed on the top of each of the two detection baffles (212).

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