Gantry type rubber material cutting machine

Abstract

The utility model provides a kind of gantry type rubber raw material cutting machine, including portal frame, tool rest, hydraulic cylinder, sword guard structure, fixed platform and cutting tool. The fixed platform for placing rubber raw material is equipped in the bottom of portal frame. Tool rest is slidably arranged in portal frame along vertical direction, and the bottom end of tool rest is connected with cutting tool. Hydraulic cylinder is arranged on portal frame, and has telescopic end that is extended downward and connected with tool rest. The sword guard structure is arranged in fixed platform, and has variable elastic insertion slot with open upward and corresponding to cutting tool. After the cutting edge of cutting tool enters and contacts with cutting tool, variable elastic insertion slot can expand outward along the direction of the frame opening of portal frame. The gantry type rubber raw material cutting machine provided by the utility model ensures that the cutting edge part can enter the variable elastic insertion slot during the process of cutting tool cutting and cutting rubber raw material, avoids the hard contact of the cutting edge of cutting tool, effectively protects the cutting tool, and has strong practicability.

Description

Technical Field

[0001] This utility model belongs to the field of rubber raw material cutting technology, specifically relating to a gantry-type rubber raw material cutting machine. Background Technology

[0002] Before rubber is processed, large or bulky rubber raw materials are usually cut into smaller pieces.

[0003] In existing technologies, the cutting process of rubber raw materials typically employs a gantry-type cutting machine. A hydraulic cylinder pushes the cutter downwards to cut the rubber raw material placed at the bottom. However, because rubber raw materials are highly elastic and plastic, they are easily deformed during cutting. Therefore, the bottom of the gantry-type cutting machine is usually set as a platform corresponding to the cutting edge of the cutter. During cutting, the cutter needs to contact this platform to cut through or completely separate the material. This method results in the cutter impacting the platform with each cut, failing to guarantee protection of the cutting edge. The cutter requires maintenance or replacement after a period of use, which is time-consuming, labor-intensive, and costly. Utility Model Content

[0004] This utility model provides a gantry-type rubber raw material cutting machine, which aims to solve the problem of poor practicality caused by the inability to protect the cutting blade in existing rubber raw material cutting machines.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a gantry-type rubber raw material cutting machine, comprising:

[0006] The gantry frame has a fixed platform at the bottom for placing rubber raw materials;

[0007] A cutter holder is slidably mounted in the gantry frame in a vertical direction, and a cutter is connected to the bottom end of the cutter holder;

[0008] A hydraulic cylinder, mounted on the gantry frame, has a telescopic end that extends downward and is connected to the tool holder;

[0009] The blade guard structure is set in the fixed platform and has an open, upward-facing variable elastic slot corresponding to the cutter; the variable elastic slot is used to expand outward along the direction through which the blade of the cutter enters and contacts the cutter.

[0010] In one possible implementation, the gantry includes:

[0011] The column is provided in two, with the two columns spaced apart.

[0012] A horizontal beam is provided, with both ends fixedly connected to the tops of the two columns; the horizontal beam is used for the fixed connection of the hydraulic cylinder.

[0013] In one possible implementation, the through direction of the frame opening of the gantry is defined as the first direction; the horizontal direction perpendicular to the first direction is defined as the second direction; the fixed platform is provided with a cavity for the placement of the blade guard structure, and the top of the fixed platform is provided with a long strip opening that communicates with the cavity and is adapted to the cutter, and the long strip opening is arranged along the second direction.

[0014] In one possible implementation, the blade guard structure includes:

[0015] Two sliding pillars are provided, and the two sliding pillars are respectively arranged on both sides of the elongated opening along the second direction; each sliding pillar is arranged along the first direction;

[0016] Two center pads are provided, and the two center pads are respectively disposed on the two sliding pillars, with each center pad located at the middle position of the corresponding sliding pillar;

[0017] Two slide blocks are provided, and the two slide blocks are respectively located on both sides of the central pad along the first direction; the two ends of each slide block are slidably connected to the two slide pillars respectively;

[0018] Two elastic elements are provided, and the two elastic elements correspond one-to-one with the two slide blocks. Each elastic element is used to continuously bounce the corresponding slide block to move towards the central pad.

[0019] The variable elastic slot is formed between the two slides.

[0020] In one possible implementation, each of the slides is a cuboid structure with a long side, a wide side, and a high side; the long side of the slide is arranged along the second direction, and the wide side of the slide is arranged along the first direction.

[0021] In one possible implementation, the top surface of each of the slides is in sliding contact with the inner wall of the top of the cavity.

[0022] In one possible implementation, the thickness of the center pad is less than the thickness of the cutter.

[0023] In one possible implementation, each of the elastic elements includes two springs, which are respectively sleeved on the two slide pillars; one end of each spring abuts against the inner wall of the cavity, and the other end abuts against the corresponding slide block.

[0024] In this implementation, the gantry frame, blade holder, and hydraulic cylinder combine to form a gantry cutting structure, generating strong cutting force and capable of cutting large-sized, thick rubber materials. The fixed platform ensures the placement of the rubber material and includes a blade guard structure. This blade guard provides a variable elastic slot adapted to the cutter, ensuring that the blade edge can enter this slot during the cutting process, preventing hard contact between the blade and the material. The variable elastic slot is also deformable, expanding towards the gantry frame opening during blade entry to cushion the downward pressure of the cutter and further prevent hard contact. This effective protection of the cutter makes it highly practical. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the gantry rubber raw material cutting machine provided in an embodiment of the present utility model;

[0026] Figure 2 A cross-sectional view of the gantry rubber raw material cutting machine provided in this embodiment of the utility model;

[0027] Figure 3 For this Figure 2 An enlarged structural diagram of point A of the gantry-type rubber raw material cutting machine provided in the embodiment;

[0028] Figure 4 A schematic diagram of the blade guard structure of the gantry rubber raw material cutting machine provided in this embodiment of the utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Gantry frame; 11. Column; 12. Horizontal beam;

[0031] 20. Knife holder;

[0032] 30. Hydraulic cylinder;

[0033] 40. Blade guard structure; 41. Sliding column; 42. Center washer; 43. Slide block; 44. Elastic element;

[0034] 50. Fixed platform; 51. Cavity; 52. Long opening;

[0035] 60. Cutting knife. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] Please refer to the following: Figure 1 and Figure 2 The present invention provides a gantry-type rubber raw material cutting machine. The gantry-type rubber raw material cutting machine includes a gantry frame 10, a blade holder 20, a hydraulic cylinder 30, a blade guard structure 40, a fixed platform 50, and a cutter 60. The bottom of the gantry frame 10 is provided with a fixed platform 50 for placing rubber raw materials. The blade holder 20 is slidably disposed in the gantry frame 10 in a vertical direction, and the bottom end of the blade holder 20 is connected to the cutter 60. The hydraulic cylinder 30 is disposed on the gantry frame 10 and has a telescopic end that extends downward and is connected to the blade holder 20. The blade guard structure 40 is disposed in the fixed platform 50 and has an upward-facing, variable elastic slot corresponding to the cutter 60. The variable elastic slot can expand outward along the direction through which the blade of the cutter 60 passes after it enters and contacts the cutter 60.

[0038] The gantry-type rubber raw material cutting machine provided in this embodiment, compared with the prior art, uses a gantry frame 10, a blade holder 20, and a hydraulic cylinder 30 to form a gantry-type cutting structure, which can generate strong cutting force and adapt to the large-thickness cutting of large-sized rubber raw materials. The fixed platform 50 ensures the placement of the rubber raw material, and a blade protection structure 40 is provided in the fixed platform 50. The blade protection structure 40 provides a variable elastic slot adapted to the cutter 60, ensuring that the blade of the cutter 60 can enter the variable elastic slot during the cutting process, avoiding hard contact between the blade and the cutter 60. Furthermore, the deformable nature of the variable elastic slot allows it to expand in the direction of penetration of the gantry frame 10 during the entry of the cutter 60, buffering the downward pressure of the cutter 60 and preventing hard contact with the cutter 60. This effectively protects the cutter 60 and is highly practical.

[0039] It should be noted that the cutter 60 can be detachably connected to the blade holder 20 by bolts.

[0040] In some embodiments, the gantry 10 described above can be adopted as follows: Figure 1 The structure shown. See also Figure 1 The gantry frame 10 includes uprights 11 and crossbeams 12. There are two uprights 11, spaced apart. The crossbeams 12 are horizontally positioned, with both ends fixedly connected to the tops of the two uprights 11. The crossbeams 12 are fixedly connected to hydraulic cylinders 30.

[0041] The gantry structure 10, formed by the combination of two columns 11 and a crossbeam 12, is simple in structure and has high structural strength, which can ensure the cutting force and thus ensure the cutting effect of rubber raw materials.

[0042] It should be noted that the fixed platform 50 at the bottom can be fixedly connected to the two columns 11, and the frame opening can be formed by the two columns 11, the crossbeam 12 and the fixed platform 50.

[0043] In addition, a guide groove for sliding connection of the tool holder 20 can be provided on the inner side of each column 11.

[0044] In some embodiments, the fixed platform 50 described above may employ, for example... Figure 3 The structure shown. See also Figure 3 The direction of the frame opening of the gantry 10 is defined as the first direction. The horizontal direction perpendicular to the first direction is defined as the second direction. The fixed platform 50 has a cavity 51 for the placement of the blade guard structure 40. The top of the fixed platform 50 has a long opening 52 that communicates with the cavity 51 and is adapted to the cutter 60. The long opening 52 is arranged along the second direction.

[0045] The cavity 51 ensures the placement of the blade guard structure 40, while the elongated opening 52 ensures compatibility with the variable elastic slot, thereby allowing the cutter 60 to pass through. In this way, the blade guard structure 40 can be concealed, effectively protecting it, while also ensuring the feed movement of the rubber material on the fixed platform 50 after cutting.

[0046] In some embodiments, the blade guard structure 40 described above can be adopted as follows: Figure 2 The structure shown. See also Figure 2 The blade guard structure 40 includes sliding pillars 41, central pads 42, sliding blocks 43, and elastic elements 44. Two sliding pillars 41 are provided, each positioned on either side of the elongated opening 52 along a second direction. Each sliding pillar 41 is positioned along a first direction. Two central pads 42 are provided, each positioned on one of the two sliding pillars 41, with each pad located at the center of its corresponding pillar 41. Two sliding blocks 43 are provided, each positioned on either side of the central pad 42 along the first direction. Both ends of each sliding block 43 are slidably connected to the two sliding pillars 41. Two elastic elements 44 are provided, each corresponding to one of the two sliding blocks 43, and each elastic element 44 can continuously bounce its corresponding sliding block 43 towards the central pad 42.

[0047] A variable elastic slot is formed between the two slides 43.

[0048] The two slide blocks 43 can move on the slide post 41 set in the first direction, and the movement of each slide block 43 is blocked by the central pad 42. That is, after the two slide blocks 43 are pushed by their respective elastic members 44 and abut against the central pads 42, an initial variable elastic slot is formed between the two slide blocks 43. This slot can avoid hard contact with the blade of the cutter 60, thereby effectively protecting the blade of the cutter 60.

[0049] In addition, both sides of the blade of the cutter 60 have bevels. After the cutter 60 enters the variable elastic slot, the two bevels will contact the two slides 43 respectively. As the cutter 60 moves downward, the two bevels will push the two slides 43 to move to the sides respectively, thereby buffering the downward pressure and preventing hard contact between the cutter 60 and the two slides 43, further ensuring the protection of the cutter 60.

[0050] In some embodiments, the slide block 43 may be adopted as follows: Figure 3 and Figure 4 The structure shown. See also Figure 3 and Figure 4 Each slide 43 has a cuboid shape, with a long side, a wide side, and a height. The long side of the slide 43 is arranged along the second direction, and the wide side of the slide 43 is arranged along the first direction.

[0051] The rectangular slide 43 is easy to manufacture. The top surface of the rectangular block is horizontal, which can prevent the elastic rubber material from being squeezed in. Moreover, the edge with the upper side facing outward can contact the inclined surface of the cutter 60, which can scrape the surface of the cutter 60 during the downward movement of the cutter 60, thereby ensuring the cleanliness of the surface of the cutter 60 and preventing the adhesion of residues.

[0052] In some embodiments, the slide block 43 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 Each slide block 43 has its top surface in sliding contact with the inner wall of the top of the cavity 51. This structure can prevent the rubber material from being squeezed into the cavity 51 after being squeezed, thereby ensuring the stable operation of the blade guard structure 40.

[0053] In some embodiments, the aforementioned center gasket 42 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 The thickness of the central pad 42 is less than the thickness of the cutter 60. This structure ensures that the two slides 43 contact the two inclined surfaces of the cutter 60, thereby ensuring the cleanliness of the cutter 60.

[0054] Additionally, it should be noted that the width of the elongated opening 52 above the cavity 51 must be greater than the thickness of the cutter 60.

[0055] In some embodiments, the elastic element 44 may be as follows: Figure 3 and Figure 4 The structure shown. See also Figure 3 and Figure 4 Each elastic element 44 includes two springs, which are respectively sleeved on two sliding pillars 41. One end of each spring abuts against the inner wall of the cavity 51, and the other end abuts against the corresponding sliding block 43.

[0056] The two springs in each elastic element 44 ensure that each slide 43 is subjected to uniform force, while also facilitating installation and connection. The structure is simple and ensures the cutting effect.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gantry-type rubber raw material cutting machine, characterized in that, include: The gantry frame has a fixed platform at the bottom for placing rubber raw materials; A cutter holder is slidably mounted in the gantry frame in a vertical direction, and a cutter is connected to the bottom end of the cutter holder; A hydraulic cylinder, mounted on the gantry frame, has a telescopic end that extends downward and is connected to the tool holder; The blade guard structure is set in the fixed platform and has an open, upward-facing variable elastic slot corresponding to the cutter; the variable elastic slot is used to expand outward along the direction through which the blade of the cutter enters and contacts the cutter.

2. The gantry-type rubber raw material cutting machine as described in claim 1, characterized in that, The gantry frame includes: The column is provided in two, with the two columns spaced apart. A horizontal beam is provided, with both ends fixedly connected to the tops of the two columns; the horizontal beam is used for the fixed connection of the hydraulic cylinder.

3. The gantry-type rubber raw material cutting machine as described in claim 1, characterized in that, The through direction of the frame opening of the gantry is set as the first direction; the horizontal direction perpendicular to the first direction is set as the second direction; the fixed platform is provided with a cavity for the blade guard structure to be placed, and the top of the fixed platform is provided with a long strip opening that communicates with the cavity and is adapted to the cutter, and the long strip opening is arranged along the second direction.

4. The gantry-type rubber raw material cutting machine as described in claim 3, characterized in that, The blade guard structure includes: Two sliding pillars are provided, and the two sliding pillars are respectively arranged on both sides of the elongated opening along the second direction; each sliding pillar is arranged along the first direction; Two center pads are provided, and the two center pads are respectively disposed on the two sliding pillars, with each center pad located at the middle position of the corresponding sliding pillar; Two slide blocks are provided, and the two slide blocks are respectively located on both sides of the central pad along the first direction; the two ends of each slide block are slidably connected to the two slide pillars respectively; Two elastic elements are provided, and the two elastic elements correspond one-to-one with the two slide blocks. Each elastic element is used to continuously bounce the corresponding slide block to move towards the central pad. The variable elastic slot is formed between the two slides.

5. The gantry-type rubber raw material cutting machine as described in claim 4, characterized in that, Each of the slides is a cuboid structure with a long side, a wide side, and a high side; the long side of the slide is arranged along the second direction, and the wide side of the slide is arranged along the first direction.

6. The gantry-type rubber raw material cutting machine as described in claim 5, characterized in that, The top surface of each of the slides is in sliding contact with the inner wall of the top of the cavity.

7. The gantry-type rubber raw material cutting machine as described in claim 4, characterized in that, The thickness of the central pad is less than the thickness of the cutter.

8. The gantry-type rubber raw material cutting machine as described in claim 4, characterized in that, Each of the elastic elements includes two springs, which are respectively sleeved on the two sliding pillars; one end of each spring abuts against the inner wall of the cavity, and the other end abuts against the corresponding sliding block.

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