Lifting device for blow molding die head

Abstract

The utility model relates to the technical field of lifting devices, and discloses a lifting device for a blow molding die head, which comprises a frame body, a lifting device and a lifting device, the frame body comprises a bottom support and two upright posts arranged on the bottom support, and a plurality of trundles are arranged on the bottom support; the driving mechanism is arranged on the frame body; the pallet fork module comprises a pallet fork frame, a first fork arm and a second fork arm, the pallet fork frame is arranged on the two stand columns in a lifting motion mode and connected with the driving mechanism, and the driving mechanism can drive the pallet fork frame to do lifting motion; the first fork arm and the second fork arm are arranged on the fork arm carrier, the distance between the first fork arm and the second fork arm is adjustable, and the maximum adjustable distance between the first fork arm and the second fork arm is larger than the distance between the two stand columns. The first fork arm and the second fork arm each comprise a cross arm and a vertical arm which are connected, the vertical arms are located below the cross arms, and the blow molding die head can be erected between the two cross arms. The lifting device has the advantages that the lifting device can be suitable for assembling and disassembling the blow molding die head on site in a factory, the lifting height is high, and the stability is good.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and in particular to a lifting device for blow molding die heads. Background Technology

[0002] Blow molds are mainly used for blow molding plastic products. Many blow molds have cylindrical mold heads that are large and heavy.

[0003] When disassembling and assembling blow molding heads on the factory site, it usually has to be done manually by multiple workers. The main reasons are that the space is usually small, the lifting height is high, and the blow molding head is heavy. Ordinary forklifts cannot meet the lifting height requirements, and their support strength is limited, making it difficult to ensure the stability of the blow molding head when lifted. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a lifting device that can be used for disassembling and assembling blow molding heads on the factory site, and has a high lifting height and good stability.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a lifting device for a blow molding die head, comprising:

[0006] The frame includes a base and two uprights mounted on the base, and the base is equipped with multiple casters.

[0007] The drive mechanism is mounted on the frame.

[0008] The fork module includes a fork carriage, a first fork arm, and a second fork arm. The fork carriage is movably mounted on the two uprights and is connected to the drive mechanism, which drives the fork carriage to move up and down. The first fork arm and the second fork arm are mounted on the fork carriage, and the distance between them is adjustable. The maximum adjustable distance between the first fork arm and the second fork arm is greater than the distance between the two uprights.

[0009] Both the first fork arm and the second fork arm include a connected horizontal arm and a vertical arm, with the vertical arm located below the horizontal arm, and the blow molding head can be mounted between the two horizontal arms.

[0010] Furthermore, the maximum adjustable distance between the first fork and the second fork is more than 10% greater than the distance between the two columns.

[0011] Furthermore, the horizontal arm is perpendicular to the vertical arm, and both the first fork arm and the second fork arm include an inclined support, one end of which is fixedly connected to the vertical arm, and the other end of which is fixedly connected to the horizontal arm.

[0012] Furthermore, the vertical arm is provided with a fastening structure, which can fix the vertical arm to the fork carriage.

[0013] Furthermore, the base includes a first crossbeam and a second crossbeam arranged at intervals, and both the first crossbeam and the second crossbeam are equipped with the casters;

[0014] The maximum adjustable distance between the first fork arm and the second fork arm is greater than the distance between the first crossbeam and the second crossbeam.

[0015] Furthermore, the lengths of the two cross arms are greater than the lengths of the first crossbeam and the second crossbeam.

[0016] Furthermore, the drive mechanism includes a hydraulic cylinder and a transmission chain. The piston output end of the hydraulic cylinder is provided with a lifting sprocket. One end of the transmission chain is connected to the fork carriage, and the other end of the transmission chain passes around the lifting sprocket and is connected to the frame.

[0017] Furthermore, the total height of the frame is less than or equal to 1.7 meters.

[0018] Furthermore, the column is provided with a handle.

[0019] Furthermore, the base is equipped with casters, and the fork carriage is equipped with a protective net.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In this invention, the fork module includes a fork carriage, a first fork arm, and a second fork arm. The distance between the first and second fork arms is adjustable, and the maximum adjustable distance between them is greater than the distance between the two uprights, making it suitable for wide goods. Both the first and second fork arms include a horizontal arm and an upright arm, with the upright arm located below the horizontal arm, effectively making the first and second fork arms inverted. This significantly increases the height of the goods that can be lifted. This lifting device is suitable for on-site assembly and disassembly of blow molding molds in factories, and it offers high lifting height and good lifting stability.

[0022] In this invention, the distance between the first fork and the second fork is more than 10% greater than the distance between the two columns, and the lengths of the first fork and the second fork are greater than the lengths of the first crossbeam and the second crossbeam, which can improve the stability of the lifting device in lifting goods.

[0023] In this invention, the total height of the frame is controlled below 1.7 meters, ensuring that it can be used in relatively small spaces for operation, and also lowering the center of gravity of the entire lifting device, thus improving working stability. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the lifting device of this utility model;

[0025] Figure 2 This is the front view of the lifting device;

[0026] Figure 3 This is a side view of the lifting device;

[0027] Figure 4 This is a top view of the lifting device.

[0028] In the picture:

[0029] 1. Frame; 10. Base support; 11. Upright; 101. Casters; 102. Casters; 103. First crossbeam; 104. Second crossbeam; 111. Handle;

[0030] 2. Drive mechanism; 20. Hydraulic cylinder; 21. Transmission chain; 201. Lifting sprocket;

[0031] 3. Fork module; 30. Fork carriage; 31. First fork arm; 32. Second fork arm; 33. Safety net; 310. Vertical arm; 311. Horizontal arm; 312. Diagonal support. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] like Figures 1-4 As shown, a lifting device for a blow molding die head in this embodiment mainly includes: a frame 1, a drive mechanism 2, and a fork module 3; wherein, the frame 1 mainly includes a base 10 and two uprights 11; the drive mechanism 2 mainly includes a hydraulic cylinder 20, a transmission chain 21, and a lifting sprocket 201; the fork module 3 mainly includes a fork carriage 30, a first fork arm 31, and a second fork arm 32.

[0038] The frame 1 includes a base 10 and two uprights 11 mounted on the base 10. The two uprights 11 are arranged vertically at intervals and are parallel to each other. The base 10 includes a first crossbeam 103 and a second crossbeam 104 arranged at intervals, with the first crossbeam 103 and the second crossbeam 104 arranged parallel to each other. Both the first crossbeam 103 and the second crossbeam 104 are equipped with casters 101, which are located at the ends of the first crossbeam 103 and the second crossbeam 104 away from the uprights 11, to facilitate the movement of the lifting device.

[0039] Drive mechanism 2 is mounted on the frame 1;

[0040] The fork module 3 includes a fork carriage 30, a first fork arm 31, and a second fork arm 32. The fork carriage 30 is movably mounted on the two uprights 11 and connected to the drive mechanism 2, which drives the fork carriage 30 to move up and down. The first fork arm 31 and the second fork arm 32 are both mounted on the fork carriage 30, and the distance between them is adjustable. The maximum adjustable distance between the first fork arm 31 and the second fork arm 32 is greater than the distance between the two uprights 11. Each of the first fork arm 31 and the second fork arm 32 includes a connected cross arm 311 and an upright arm 310, and the upright arm 310 is located below the cross arm 311. The blow molding head can be mounted between the two cross arms 311.

[0041] In practical use, the lifting device of this embodiment includes a fork carriage 30, a first fork arm 31, and a second fork arm 32. The distance between the first fork arm 31 and the second fork arm 32 is adjustable, and the maximum adjustable distance between them is greater than the distance between the two uprights 11, making it suitable for wider goods. Both the first fork arm 31 and the second fork arm 32 include a horizontal arm 311 and an upright arm 310. The upright arm 310 is located below the horizontal arm 311, which is equivalent to the first fork arm 31 and the second fork arm 32 being inverted, which can effectively increase the height of the goods that can be lifted. This lifting device is suitable for disassembling and assembling blow molding heads on-site in factories, and has a high lifting height and good lifting stability.

[0042] Furthermore, in this embodiment, the maximum adjustable distance between the first fork arm 31 and the second fork arm 32 is more than 10% larger than the distance between the two uprights 11. In existing forklifts, the distance between the two forks is generally smaller than the distance between the two uprights 11, and the two forks can generally only be adjusted left and right between the two uprights 11. However, in this embodiment, the maximum adjustable distance between the first fork arm 31 and the second fork arm 32 is more than 10% larger than the distance between the two uprights 11, making it better suited for wider goods. Blow molding dies are typically designed with a cylindrical structure, and the fork module 3 of this embodiment is suitable for lifting such blow molding dies.

[0043] Furthermore, the maximum adjustable distance between the first fork arm 31 and the second fork arm 32 is also greater than the distance between the first crossbeam 103 and the second crossbeam 104. Moreover, the length of the two cross arms 311 is greater than the length of the first crossbeam 103 and the second crossbeam 104. That is, compared to ordinary forklift forks, the lengths of the first fork arm 31 and the second fork arm 32 in this embodiment are extended. This is because, without extending their length, when the first fork arm 31 and the second fork arm 32 lift the blow molding die, it would be difficult for the lifted portion to exceed the radius of the blow molding die, making it difficult to guarantee stability when lifting the blow molding die. This embodiment extends the length of the first fork arm 31 and the second fork arm 32 from the original length, effectively ensuring that when the first fork arm 31 and the second fork arm 32 lift the blow molding die, the distance that the first fork arm 31 and the second fork arm 32 can support is greater than the radius of the blow molding die, ensuring stability and safety during lifting.

[0044] Since the first fork arm 31 and the second fork arm 32 need to bear heavy loads when lifting the blow molding die head, each of the first fork arm 31 and the second fork arm 32 includes a diagonal support 312. One end of the diagonal support 312 is fixedly connected to the vertical arm 310, and the other end of the diagonal support 312 is fixedly connected to the horizontal arm 311. Specifically, both ends of the diagonal support 312 can be fixed to the horizontal arm 311 and the vertical arm 310 respectively by welding. The setting of the diagonal support 312 can effectively improve the load that the first fork arm 31 and the second fork arm 32 can bear. Among them, the horizontal arm 311 is perpendicular to the vertical arm 310. In actual operation, the horizontal arm 311 mainly bears the vertical load. Because the weight of the object is applied vertically to the two horizontal arms 311, the diagonal support 312 supports the middle of the two horizontal arms 311 to improve the load-bearing capacity of the two horizontal arms 311.

[0045] In order to facilitate picking up goods, the top surface of the cross arm 311 can preferably be set as an inclined surface, that is, the top surface of the cross arm 311 gradually slopes upward from the end away from the vertical arm 310 to the end closer to the vertical arm 310.

[0046] After the spacing between the first fork arm 31 and the second fork arm 32 is adjusted on the fork carriage 30, that is, after adjusting the positions of the first fork arm 31 and the second fork arm 32 left and right, it is necessary to fix the first fork arm 31 and the second fork arm 32 on the fork carriage 30 to ensure that the first fork arm 31 and the second fork arm 32 will not shift when inserting goods. In this embodiment, the upright arm 310 is also provided with a fastening structure, which can fix the upright arm 310 on the fork carriage 30. Specifically, the fastening structure can use fasteners such as bolts, and it can adopt existing fork locking methods, which will not be described in detail here.

[0047] Many existing forklifts are typically 1.8 meters or even taller. However, in factory settings, where building heights are often low and there is a lot of equipment around the molds, it is difficult to adapt to working in confined spaces. In this embodiment, the total height of the frame 1 is controlled to be less than or equal to 1.7 meters, meaning the total height of the lifting device is less than or equal to 1.7 meters, ensuring that the lifting device can be used in even more confined spaces.

[0048] In practical use, the distance between the first fork arm 31 and the second fork arm 32 in this embodiment is more than 10% larger than the distance between the two uprights 11, and the lengths of the first fork arm 31 and the second fork arm 32 are greater than the lengths of the first crossbeam 103 and the second crossbeam 104, which can improve the stability of the lifting device in lifting goods. Moreover, the total height of the frame 1 is controlled below 1.7 meters, ensuring that it can be used in relatively confined spaces and that the center of gravity of the entire lifting device is also lowered, improving working stability.

[0049] In this embodiment, the drive mechanism 2 includes a hydraulic cylinder 20 and a transmission chain 21. The hydraulic cylinder 20 is mounted on the base 10 and arranged vertically. A lifting sprocket 201 is provided at the piston output end of the hydraulic cylinder 20. One end of the transmission chain 21 is connected to the fork carriage 30, and the other end of the transmission chain 21 passes around the lifting sprocket 201 and is connected to the frame 1. Specifically, two lifting sprockets 201 are symmetrically arranged at the piston output end of the hydraulic cylinder 20. A transmission chain 21 is wound around each lifting sprocket 201. The transmission chain 21 is a heavy-duty chain to ensure that it can be used in heavy-load scenarios. The two transmission chains 21 are symmetrically connected on both sides of the fork carriage 30 to ensure that the lifting force on the fork carriage 30 is balanced.

[0050] Specifically, in this embodiment, the column 11 is equipped with a handle 111. The handle 111 is ergonomically designed to ensure user comfort during use, and the lifting device can be operated through the handle 111. Two swivel casters 102 are also provided on the base 10, symmetrically arranged to facilitate the turning of the lifting device, while the casters 101 can only move forward and backward. A safety net 33 is provided on the fork carriage 30 to ensure safety when lifting goods.

[0051] When the blow molding die head is lifted by the lifting device of this embodiment, it is supported on the first fork arm 31 and the second fork arm 32. The piston of the hydraulic cylinder 20 extends, causing the two lifting sprockets 201 at the piston output end to push upward. The lifting sprockets 201 pull the transmission chain 21, causing the fork assembly 3 to rise along the two columns 11 until the blow molding die head is lifted to the height of the upper mold, so as to facilitate the worker to install the upper mold. Conversely, if it is necessary to remove the blow molding die head from the mold, the operation process is reversed.

[0052] In this solution, the lifting device is suitable for disassembling and assembling blow molding heads on-site in the factory, and it has a high lifting height and good stability.

Claims

1. A lifting device for a blow molding die head, characterized in that, include: The frame includes a base and two uprights mounted on the base, and the base is equipped with multiple casters. The drive mechanism is mounted on the frame. The fork module includes a fork carriage, a first fork arm, and a second fork arm. The fork carriage is movably mounted on the two uprights and is connected to the drive mechanism, which drives the fork carriage to move up and down. The first fork arm and the second fork arm are mounted on the fork carriage, and the distance between them is adjustable. The maximum adjustable distance between the first fork arm and the second fork arm is greater than the distance between the two uprights. Both the first fork arm and the second fork arm include a connected horizontal arm and a vertical arm, with the vertical arm located below the horizontal arm, and the blow molding head can be mounted between the two horizontal arms.

2. The lifting device for a blow molding die head according to claim 1, characterized in that, The maximum adjustable distance between the first fork and the second fork is more than 10% greater than the distance between the two columns.

3. The lifting device for a blow molding die head according to claim 1, characterized in that, The horizontal arm is perpendicular to the vertical arm, and both the first fork arm and the second fork arm include an inclined support. One end of the inclined support is fixedly connected to the vertical arm, and the other end of the inclined support is fixedly connected to the horizontal arm.

4. The lifting device for a blow molding die head according to claim 3, characterized in that, The boom is provided with a fastening structure, which can fix the boom to the fork carriage.

5. The lifting device for a blow molding die head according to claim 1, characterized in that, The base includes a first crossbeam and a second crossbeam arranged at intervals, and both the first crossbeam and the second crossbeam are equipped with the casters; The maximum adjustable distance between the first fork arm and the second fork arm is greater than the distance between the first crossbeam and the second crossbeam.

6. The lifting device for a blow molding die head according to claim 5, characterized in that, The lengths of the two cross arms are greater than the lengths of the first crossbeam and the second crossbeam.

7. The lifting device for a blow molding die head according to claim 1, characterized in that, The drive mechanism includes a hydraulic cylinder and a transmission chain. The piston output end of the hydraulic cylinder is provided with a lifting sprocket. One end of the transmission chain is connected to the fork carriage, and the other end of the transmission chain passes around the lifting sprocket and is connected to the frame.

8. The lifting device for a blow molding die head according to claim 1, characterized in that, The total height of the frame is less than or equal to 1.7 meters.

9. The lifting device for a blow molding die head according to claim 1, characterized in that, The column is equipped with a handle.

10. The lifting device for a blow molding die head according to claim 1, characterized in that, The base is also equipped with casters, and the fork carriage is equipped with a protective net.

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