High-temperature-resistant liftable trolley

Abstract

The utility model provides a high-temperature-resistant liftable trolley, and relates to the technical field of transfer devices, and the high-temperature-resistant liftable trolley comprises a frame; the lifting frame is arranged on the vehicle frame in a liftable mode, and a first driving piece used for driving the lifting frame to ascend and descend is arranged on the vehicle frame; the extension frame is telescopically arranged on the lifting frame, and a telescopic driving piece used for driving the extension frame to stretch out and draw back relative to the lifting frame is arranged on the lifting frame; and the lifting frame is arranged on the extension frame in a liftable mode, and a second driving piece used for driving the lifting frame to ascend and descend is arranged on the lifting frame. The extension frame is driven by the telescopic driving part to extend out of the drying oven relative to the lifting frame and move to the position below the mold, then the lifting frame is driven by the second driving part to ascend, the mold is lifted through the lifting frame, then the extension frame is driven by the telescopic driving part to retract relative to the lifting frame, and the mold is moved out of the drying oven. Therefore, a worker does not need to wear heat insulation gloves to carry the mold, and the labor intensity of the worker is effectively relieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of transfer devices, in particular to a high-temperature-resistant liftable trolley. BACKGROUND

[0002] In the industry of plastic toys, daily necessities and electronic products, molds are often used to produce various plastic products by injection molding. In the mold injection molding production process, after the hot setting resin glue such as epoxy resin and phenolic resin is injected into the mold, the mold needs to be placed in an oven, the temperature is raised, the resin molecules in the glue liquid are cross-linked to change from linear molecular chains to three-dimensional network structures, and the hot setting resin glue is solidified. When the solidification is completed, the mold needs to be taken out of the oven and transferred to a demolding station.

[0003] For the removal of the mold from the oven, the common method at present is to use an oven with a track, and when the solidification is completed, the mold is removed from the oven along the track. However, since the track of the oven usually needs to occupy a large space, it is only suitable for large-size ovens in large-area production sites, and for small-size ovens in small-area production sites, the common method at present is to manually move the mold to a manual forklift after the solidification is completed, and then transfer the mold to the demolding station by the manual forklift, so that the labor intensity of the workers is large. And since the temperature in the oven and the mold is high when the solidification is completed, the workers need to wear heat-resistant gloves when moving the mold, which is not only inconvenient to operate, but also easy to cause burns, and there is a certain safety hazard. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the application is to provide a high-temperature-resistant liftable trolley, which solves the problems of large labor intensity of workers and inconvenient operation and the risk of burns when manually moving the solidified mold by a manual forklift in the related art.

[0005] The high-temperature-resistant liftable trolley provided by the application adopts the following technical scheme:

[0006] A high-temperature-resistant liftable trolley comprises:

[0007] A trolley frame is provided with traveling wheels;

[0008] A lifting frame is liftable arranged on the trolley frame, and a first driving member for driving the lifting frame to lift is arranged on the trolley frame;

[0009] An extension frame is telescopically arranged on the lifting frame, and a telescopic driving member for driving the extension frame to telescope relative to the lifting frame is arranged on the lifting frame;

[0010] The lifting frame is arranged on the extension frame in a liftable manner, and the lifting frame is provided with a second driving member for driving the lifting frame to lift.

[0011] Optionally, the first driving member comprises a driving sprocket, a driving chain and a first motor, the driving sprocket is rotatably arranged on the frame through a sprocket shaft, the driving sprocket is provided with two groups, the driving chain is arranged around the two groups of driving sprockets, the lifting frame is fixedly connected with the driving chain, and the first motor is arranged on the frame and connected with the sprocket shaft.

[0012] Optionally, the lifting frame is arranged on the extension frame in a liftable manner, and the lifting frame is provided with a second driving member for driving the lifting frame to lift.

[0013] Optionally, the unidirectional limiting mechanism comprises a wedge-shaped block and a first elastic member arranged on the frame, the sprocket shaft is provided with a locking wheel, the locking wheel is provided with locking grooves uniformly distributed in the circumferential direction, the first elastic member acts on the wedge-shaped block and is used for providing elastic force for pushing the wedge-shaped block to be clamped with the locking grooves, and the unlocking mechanism is connected with the wedge-shaped block and is used for operating the wedge-shaped block to be separated from the locking grooves.

[0014] Optionally, the unlocking mechanism comprises a handle, a pull rope and a second elastic member, the handle is slidably arranged on the frame, two ends of the pull rope are respectively connected with the handle and the wedge-shaped block, and the second elastic member is used for tightening the pull rope.

[0015] Optionally, the second driving member comprises a screw sleeve, a worm and a second motor, the screw sleeve is rotatably arranged on the extension frame, the lifting frame is provided with a screw column screwed with the screw sleeve, the screw sleeve is provided with a worm wheel, the worm is rotatably arranged on the extension frame and engaged with the worm wheel, and the second motor is fixedly arranged on the lifting frame and connected with the worm.

[0016] Optionally, the second driving member further comprises a rotating shaft, the rotating shaft is rotatably arranged on the lifting frame, the rotating shaft is provided with a transmission rod, the worm is provided with a sleeve, the sleeve is slidably sleeved with the transmission rod, and the second motor is connected with the rotating shaft.

[0017] Optionally, the bottom of the extension frame is provided with a plurality of supporting wheels, and the supporting wheels are used to support the inner bottom wall of the oven after the extension frame is extended relative to the lifting frame.

[0018] In summary, the present application has at least the following beneficial technical effects: when the curing of the thermosetting resin glue is completed and the mold needs to be taken out of the oven, the oven door is opened, the high-temperature-resistant liftable trolley of the embodiment is pushed to move to the oven, then the extension frame is driven to extend into the oven relative to the lifting frame through the telescopic driving member, and is moved to below the mold, then the lifting frame is driven to rise through the second driving member, the mold is lifted through the lifting frame, then the extension frame is driven to retract relative to the lifting frame through the telescopic driving member, and the mold is moved out of the oven, so that the staff does not need to wear heatproof gloves to move the mold, effectively reducing the labor intensity of the staff, improving the convenience of operation, and greatly reducing the risk of scalding. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole schematic view of the high-temperature-resistant liftable trolley from a first perspective in the embodiment of the present application.

[0020] Figure 2 It is a sectional view of the high-temperature-resistant liftable trolley from a second perspective in the embodiment of the present application.

[0021] Figure 3 It is a sectional view of the high-temperature-resistant liftable trolley from a third perspective in the embodiment of the present application.

[0022] Figure 4 It is a whole schematic view of the high-temperature-resistant liftable trolley from a fourth perspective in the embodiment of the present application. Figure 3 It is a local enlarged schematic view of C1 part in the embodiment.

[0023] Figure 5 It is a local enlarged schematic view of C2 part in the embodiment. Figure 3 It is a local enlarged schematic view of C2 part in the embodiment.

[0024] Figure 6 It is a whole schematic view of the high-temperature-resistant liftable trolley from a fifth perspective in the embodiment of the present application.

[0025] Figure 7 It is a local enlarged schematic view of A part in the embodiment. Figure 6 It is a local enlarged schematic view of A part in the embodiment.

[0026] Figure 8 It is a sectional view of the high-temperature-resistant liftable trolley from a fifth perspective in the embodiment of the present application.

[0027] Figure 9 It is a local enlarged schematic view of B part in the embodiment. Figure 8 It is a local enlarged schematic view of B part in the embodiment.

[0028] Figure 10 It is a local enlarged schematic view of E part in the embodiment. Figure 2 It is a local enlarged schematic view of E part in the embodiment.

[0029] Figure 11 It is a sectional view of the high-temperature-resistant liftable trolley from a sixth perspective in the embodiment of the present application.

[0030] Figure 12 For Figure 11 Partial enlarged view of D part.

[0031] Reference signs:

[0032] 10, frame; 11, walking wheel; 12, vertical column; 14, guide groove; 15, support; 16, counterweight; 17, shell;

[0033] 20, lifting frame; 21, sliding sleeve; 22, connecting block; 23, guide rail; 30, extension frame; 31, sliding groove; 32, limiting cylinder; 33, supporting wheel; 34, rack; 40, lifting frame; 41, stud; 42, guide column;

[0034] 50, first driving member; 51, driving sprocket; 52, driving chain; 53, first motor; 54, sprocket shaft; 541, locking wheel; 542, locking groove; 55, transmission chain sprocket assembly;

[0035] 60, telescopic driving member; 61, telescopic gear; 62, third motor; 63, second bevel gear pair; 70, second driving member; 71, screw sleeve; 711, worm gear; 72, worm; 721, sleeve; 722, square hole; 73, second motor; 74, thrust bearing; 75, rotating shaft; 751, transmission rod; 76, first bevel gear pair;

[0036] 80, one-way limiting mechanism; 81, wedge-shaped block; 811, columnar body; 82, first spring; 90, unlocking mechanism; 91, handle; 92, pull rope; 93, pulley; 94, second spring; 100, battery. DETAILED DESCRIPTION

[0037] The following will be described in detail below with reference to the accompanying Figure 1 - the accompanying Figure 12 , the present application will be further described in detail.

[0038] The application discloses a high-temperature-resistant and liftable trolley.

[0039] The application discloses a high-temperature-resistant and liftable trolley.

[0040] Referring to Figure 1 and Figure 2 , the frame 10 is provided with a walking wheel 11, and the frame 10 is provided with a counterweight 16.

[0041] The lifting frame 20 is arranged on the frame 10 in a liftable manner. More specifically, the frame 10 is provided with a vertical column 12, and the lifting frame 20 is provided with a sliding sleeve 21 which is sleeved outside the vertical column 12. The frame 10 is provided with a first driving member 50 for driving the lifting frame 20 to lift. In an optional embodiment, the specific structure of the first driving member 50 and the specific connection relationship with the frame 10 and the lifting frame 20 are as follows:

[0042] The first driving member 50 comprises a driving sprocket 51, a driving chain 52 and a first motor 53. The driving sprocket 51 is rotatably arranged on the frame 10 through a sprocket shaft 54. The driving sprocket 51 is provided in two groups. The driving chain 52 is arranged around the two groups of driving sprockets 51. The lifting frame 20 is fixedly connected with the driving chain 52 through a connecting block 22. The first motor 53 is fixedly arranged on the frame 10 and connected with the sprocket shaft 54 through a transmission chain and sprocket assembly 55. The first motor 53 can drive the sprocket shaft 54 and the driving sprocket 51 to rotate, which in turn drives the driving chain 52 to run, and then drives the lifting frame 20 to lift along the vertical column 12.

[0043] Referring to Figures 1 to 5 , the one-way limiting mechanism 80 acts on the lifting frame 20 and is used for one-way limiting the descent of the lifting frame 20, so as to brake the lifting frame 20 after the first driving member 50 stops driving the lifting frame 20 to ascend, thereby preventing the lifting frame 20 from falling. The unlocking mechanism 90 is connected with the one-way limiting mechanism 80 and is used for releasing the one-way limiting of the one-way limiting mechanism 80 on the lifting frame 20, so that the first driving member 50 can drive the lifting frame 20 to descend.

[0044] In an optional embodiment, the specific structure of the one-way limiting mechanism 80 and the specific connection relationship with the lifting frame 20 are as follows: the one-way limiting mechanism 80 comprises a wedge-shaped block 81 and a first elastic member. The sprocket shaft 54 is provided with a locking wheel 541. The locking wheel 541 is provided with locking grooves 542 which are uniformly distributed in the circumferential direction. The frame 10 is provided with a guide groove 14. The wedge-shaped block 81 is slidingly arranged in the guide groove 14.

[0045] The first elastic member acts on the wedge-shaped block 81 and is used for providing an elastic force for pushing the wedge-shaped block 81 to be clamped with the locking grooves 542. More specifically, the first elastic member is a first spring 82. The wedge-shaped block 81 is provided with a column body 811 which is slidingly arranged in the guide groove 14. The first spring 82 is sleeved outside the column body 811. The two ends of the first spring 82 are respectively abutted with the wedge-shaped block 81 and the inner end surface of the guide groove 14.

[0046] In an optional embodiment, the specific structure of the unlocking mechanism 90 and the specific connection relationship with the one-way limiting mechanism 80 are as follows: the unlocking mechanism 90 is connected with the wedge block 81 and is used to operate the wedge block 81 to separate from the locking groove 542, more specifically, the unlocking mechanism 90 includes a handle 91, a pull rope 92, a pulley 93, and a second elastic member, the pulley 93 is rotationally arranged on the frame 10, the pulley 93 is provided with two, the frame 10 is provided with a bracket 15, the handle 91 is slidably arranged through the bracket 15 on the frame 10, the pull rope 92 is wound around the two pulleys 93, and the two ends of the pull rope 92 are connected with the handle 91 and the wedge block 81 respectively. The second elastic member is a second spring 94, the two ends of the second spring 94 are fixedly connected with the handle 91 and the bracket 15 respectively, the second elastic member is used to tighten the pull rope 92 to avoid the pull rope 92 from falling off the pulley 93, and the elastic coefficient of the second elastic member is smaller than that of the first elastic member.

[0047] With reference to Figure 1 , Figure 6 and Figure 7 , the extension frame 30 is telescopically arranged on the lifting frame 20, more specifically, the side of the extension frame 30 is provided with a sliding groove 31, the lifting frame 20 is provided with a guide rail 23, and the extension frame 30 is slidably connected with the guide rail 23 through the sliding groove 31. The lifting frame 20 is provided with a telescopic driving member 60 for driving the extension frame 30 to telescope relative to the lifting frame 20, in an optional embodiment, the specific structure of the telescopic driving member 60 and the specific connection relationship with the lifting frame 20 and the extension frame 30 are as follows:

[0048] The telescopic driving member 60 includes a telescopic gear 61 and a third motor 62, the telescopic gear 61 is rotationally arranged on the lifting frame 20, the third motor 62 is fixedly arranged on the lifting frame 20 and connected with the telescopic gear 61 through a second bevel gear pair 63, and the extension frame 30 is provided with a rack 34 engaged with the telescopic gear 61.

[0049] The bottom of the extension frame 30 is provided with a plurality of supporting wheels 33, which are used to support the inner bottom wall of the oven after the extension frame 30 is extended relative to the lifting frame 20.

[0050] With reference to Figure 1 , Figures 8 to 12 , the lifting frame 40 is telescopically arranged on the extension frame 30, more specifically, the lifting frame 40 is provided with a guide column 42, the extension frame 30 is provided with a limiting cylinder 32, and the guide column 42 is slidably inserted into the limiting cylinder 32. The lifting frame 20 is provided with a second driving member 70 for driving the lifting frame 40 to lift, in an optional embodiment, the specific structure of the second driving member 70 and the specific connection relationship with the lifting frame 20 and the lifting frame 40 are as follows:

[0051] The second driving member 70 comprises a screw sleeve 71, a worm 72, a second motor 73 and a rotating shaft 75. The screw sleeve 71 is rotatably arranged on the extension frame 30 through a thrust bearing 74. The lifting frame 40 is provided with a stud 41 which is screwed with the screw sleeve 71. The screw sleeve 71 is provided with a worm wheel 711. The worm 72 is rotatably arranged on the extension frame 30 and is engaged with the worm wheel 711.

[0052] The second motor 73 is fixedly arranged on the lifting frame 20 and is connected with the worm 72. More specifically, the rotating shaft 75 is rotatably arranged on the lifting frame 20. The rotating shaft 75 is provided with a transmission rod 751 which has a square cross section. The worm 72 is provided with a sleeve 721. The sleeve 721 is provided with a square hole 722. The sleeve 721 is slidably sleeved with the transmission rod 751 through the square hole 722. The second motor 73 is connected with the rotating shaft 75 through a first bevel gear pair 76.

[0053] Referring to Figure 1 and Figure 11 , the frame 10 is provided with a housing 17. The storage battery 100 is arranged in the housing 17. The first motor 53, the second motor 73 and the third motor 62 are electrically connected with the storage battery 100. The first motor 53, the second motor 73 and the third motor 62 are powered by the storage battery 100.

[0054] The implementation principle of the high-temperature-resistant lifting trolley is as follows: when the mold is heated and solidified in the oven, the mold is elevated by the cushion block. When the thermosetting resin glue solidification is completed and the mold needs to be taken out of the oven, the oven door is opened, and then the high-temperature-resistant lifting trolley is pushed to move to the oven, so that the end of the frame 10 abuts against the end face of the oven.

[0055] Since the oven usually has a certain wall thickness, the inner bottom wall of the oven is a certain height from the ground. Therefore, when the lifting frame 20 is in the lowest position on the frame 10, the bottom end point of the supporting wheel 33 is lower than the height of the inner bottom wall of the oven. At this time, the first motor 53 of the first driving member 50 drives the sprocket shaft 54 and the driving sprocket 51 to rotate, and then the driving sprocket 51 drives the driving chain 52 to rotate, and the driving chain 52 drives the lifting frame 20 to rise along the vertical column 12, so that the bottom end point of the supporting wheel 33 is flush with the inner bottom wall of the oven.

[0056] Then, the third motor 62 of the telescopic driving member 60 drives the telescopic gear 61 to rotate. Under the interaction of the telescopic gear 61 and the rack 34, the extension frame 30 is driven to extend relative to the lifting frame 20 and enter the oven, and moves to the position below the elevated mold. When the extension frame 30 enters the oven, the supporting wheel 33 contacts the inner bottom wall of the oven, and the supporting wheel 33 partially supports the extension frame 30.

[0057] Then, the second motor 73 of the second driving member 70 drives the rotating shaft 75 to rotate, the sleeve 721 and the worm 72 are driven to rotate through the transmission rod 751, the worm wheel 711 and the screw sleeve 71 are driven to rotate through the worm 72, then the lifting frame 40 is driven to rise under the interaction of the screw sleeve 71 and the stud 41, the mold is lifted by the lifting frame 40, the mold is lifted away from the cushion block and placed on the lifting frame 40.

[0058] Then, the extension frame 30 is driven to retract relative to the lifting frame 20 through the telescopic driving member 60, the mold is moved out of the oven. Then, the lifting frame 20 is driven to rise to a certain height through the first driving member 50, the high-temperature-resistant lifting trolley of the embodiment is pushed to move, and the mold can be transferred to the demolding station. When the lifting frame 20 is driven to rise through the first driving member 50, the locking wheel 541 of the one-way limiting mechanism 80 rotates in the positive direction with the sprocket shaft 54, the locking wheel 541 acts on the wedge surface of the wedge block 81, overcomes the elastic force of the first spring 82, and gapingly pushes the wedge block 81 to exit from the locking groove 542. When the lifting frame 20 stops rising and the sprocket shaft 54 rotates to the wedge block 81 being clamped into the locking groove 542, the sprocket shaft 54 is limited to rotate in the reverse direction through the wedge block 81, that is, the lifting frame 20 is limited to descend, and one-way locking is realized. When it is needed to drive the lifting frame 20 to descend, the handle 91 of the unlocking mechanism 90 is pulled, and the wedge block 81 is driven to exit from the locking groove 542 through the pull rope 92, the one-way locking of the lifting frame 20 is released, and then the lifting frame 20 can be driven to descend through the first driving member 50.

[0059] The embodiments of the specific implementation are the preferred embodiments of the application, and are not limited to the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A high temperature resistant, elevatable trolley characterised in that, The utility model relates to a lifting frame, which comprises: a vehicle frame (10) provided with traveling wheels (11); a lifting frame (20) arranged on the vehicle frame (10) and capable of being lifted and lowered, the vehicle frame (10) being provided with a first driving member (50) for driving the lifting frame (20) to lift and lower; an extension frame (30) arranged on the lifting frame (20) and capable of being extended and retracted, the lifting frame (20) being provided with a telescopic driving member (60) for driving the extension frame (30) to extend and retract relative to the lifting frame (20); and a lifting frame (40) arranged on the extension frame (30) and capable of being lifted and lowered, the lifting frame (20) being provided with a second driving member (70) for driving the lifting frame (40) to lift and lower.

2. A high temperature resistant liftable trolley as claimed in claim 1, wherein, The first driving member (50) comprises driving sprockets (51), a driving chain (52), and a first motor (53), the driving sprockets (51) are rotatably arranged on the vehicle frame (10) through sprocket shafts (54), the driving sprockets (51) are provided in two groups, the driving chain (52) is arranged around the two groups of driving sprockets (51), the lifting frame (20) is fixedly connected to the driving chain (52), and the first motor (53) is arranged on the vehicle frame (10) and connected to the sprocket shafts (54).

3. A high temperature resistant liftable trolley as claimed in claim 2, wherein, The utility model further comprises a one-way limiting mechanism (80) and an unlocking mechanism (90), the one-way limiting mechanism (80) acts on the lifting frame (20) and is used for one-way limiting the lowering of the lifting frame (20), and the unlocking mechanism (90) is connected to the one-way limiting mechanism (80) and is used for releasing the one-way limiting of the one-way limiting mechanism (80) on the lifting frame (20).

4. A high temperature resistant liftable trolley as claimed in claim 3, wherein, The one-way limiting mechanism (80) comprises a wedge-shaped block (81) arranged on the vehicle frame (10) and a first elastic member, the sprocket shaft (54) is provided with a locking wheel (541), the locking wheel (541) is provided with locking grooves (542) uniformly distributed in the circumferential direction, the first elastic member acts on the wedge-shaped block (81) and is used for providing elastic force for pushing the wedge-shaped block (81) to be clamped with the locking grooves (542), and the unlocking mechanism (90) is connected to the wedge-shaped block (81) and is used for operating the wedge-shaped block (81) to be separated from the locking grooves (542).

5. A high temperature resistant liftable trolley as claimed in claim 4, wherein, The unlocking mechanism (90) comprises a handle (91), a pull rope (92), and a second elastic member, the handle (91) is slidingly arranged on the vehicle frame (10), both ends of the pull rope (92) are connected to the handle (91) and the wedge-shaped block (81) respectively, and the second elastic member is used for tightening the pull rope (92), and the elastic coefficient of the second elastic member is smaller than that of the first elastic member.

6. A high temperature resistant liftable trolley as claimed in claim 1, wherein, The second driving member (70) comprises a screw sleeve (71), a worm (72) and a second motor (73), the screw sleeve (71) is rotationally arranged on the extension frame (30), the lifting frame (40) is provided with a stud (41) screwed with the screw sleeve (71), the screw sleeve (71) is provided with a worm wheel (711), the worm (72) is rotationally arranged on the extension frame (30) and is engaged with the worm wheel (711), and the second motor (73) is fixedly arranged on the lifting frame (20) and is connected with the worm (72).

7. A high temperature resistant liftable trolley as claimed in claim 6, wherein, The second driving member (70) further comprises a rotating shaft (75), the rotating shaft (75) is rotationally arranged on the lifting frame (20), the rotating shaft (75) is provided with a transmission rod (751), the worm (72) is provided with a sleeve (721), the sleeve (721) is slidably sleeved with the transmission rod (751), and the second motor (73) is connected with the rotating shaft (75).

8. The high temperature resistant liftable trolley as claimed in claim 1, wherein, The bottom of the extension frame (30) is provided with a plurality of supporting wheels (33), which are used to support the inner bottom wall of the oven after the extension frame (30) is extended relative to the lifting frame (20).

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