Silica gel strip cutting machine

Abstract

The utility model discloses a silica gel strip cutting machine which comprises a machine frame and a working table plate fixed on the machine frame, a feeding mechanism capable of driving sheet-shaped workpieces to move on the working table plate from back to front is arranged on the machine frame, and a strip cutting knife set capable of cutting the workpieces on the working table plate into strips is further arranged on the machine frame. The slitting cutter set comprises an upper cutter set body and a lower cutter set body, the upper cutter set body comprises a first cutter shaft arranged in the left-right direction and located on the working table plate, and a plurality of upper cutter blades arranged on the first cutter shaft in a sleeving mode. The lower cutter set comprises a second cutter shaft arranged in the left-right direction and located below the working table and a plurality of lower blades arranged on the second cutter shaft in a sleeving mode, the rack is further provided with a power device capable of driving the first cutter shaft and the second cutter shaft to synchronously and reversely rotate, and the lower blades correspond to the upper blades one to one. And the upper part of the lower blade is attached to the lower part of the corresponding upper blade. The equipment can automatically cut silica gel sheets into strips, and the working efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of silicone button manufacturing technology, and in particular to a silicone strip cutting machine. Background Technology

[0002] In the production process of silicone buttons for remote controls, one step involves cutting silicone sheets into strips. These strips are then placed one by one into a mold to form a complete silicone button sheet and part of the button itself. Pre-added silicone granules of other colors in the mold are used to form the remaining buttons. Once all the buttons are heat-fused and bonded to the silicone sheet, the raw material for the remote control silicone button is formed. Currently, many manufacturers still use semi-automatic equipment to cut the silicone into strips, requiring a large amount of manual labor, resulting in low efficiency and high labor costs. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a silicone strip cutter that can automatically cut silicone sheets into strips.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] A silicone strip cutting machine includes a frame and a worktable fixed on the frame. The frame is equipped with a feeding mechanism that drives sheet-like workpieces to move from back to front on the worktable. The frame is also equipped with a cutting blade assembly that cuts the workpieces on the worktable into strips. The cutting blade assembly includes an upper blade assembly and a lower blade assembly. The upper blade assembly includes a first cutter shaft arranged in a left-right direction and located on the worktable, and a plurality of upper blades sleeved on the first cutter shaft. The lower blade assembly includes a second cutter shaft arranged in a left-right direction and located below the worktable, and a plurality of lower blades sleeved on the second cutter shaft. The frame is also equipped with a power device that drives the first cutter shaft and the second cutter shaft to rotate synchronously in opposite directions. The lower blades correspond one-to-one with the upper blades, and the upper part of the lower blade is in contact with the lower part of the corresponding upper blade.

[0006] As a further optimization of the above solution, both the upper and lower blades are circular blades, and the worktable is provided with clearance grooves that can avoid the upper and lower blades.

[0007] As a further optimization of the above scheme, the first cutter axis is parallel to the second cutter axis, and in any two adjacent upper blades, one of them is in contact with the left side of the corresponding lower blade, and the other is in contact with the right side of the corresponding lower blade.

[0008] As a further optimization of the above scheme, the upper blades are counted from left to right, with odd-numbered upper blades touching the right side of the corresponding lower blades, and even-numbered upper blades touching the left side of the corresponding lower blades.

[0009] As a further optimization of the above solution, the frame is provided with a scraper located in front of the first cutter shaft, the distance between the front end of the scraper and the first cutter shaft is less than or equal to 10mm, and the scraper is provided with a clearance groove that can avoid the upper blade.

[0010] As a further optimization of the above solution, a discharge channel is formed between the lower surface of the scraper and the worktable, and the width of the discharge channel gradually increases from back to front.

[0011] As a further optimization of the above solution, the feeding mechanism includes a feeding power roller located before the cutting blade group and a feeding roller group located after the cutting blade group. The feeding roller group includes an active feeding roller and a driven feeding roller located below the active feeding roller. The top of the driven feeding roller is higher than the worktable. There is a gap between the active feeding roller and the driven feeding roller that allows the workpiece to pass through.

[0012] As a further optimization of the above solution, the power unit includes a first motor, the first motor is connected to a reducer, the output shaft of the reducer is connected to the second cutter shaft through a synchronous toothed belt mechanism, the second cutter shaft is connected to the first cutter shaft through a gear set, and the first cutter shaft is connected to the active feeding roller through a synchronous toothed belt mechanism.

[0013] The beneficial effects of this utility model are: under the pushing action of the feeding mechanism, the sheet-like silicone moves from back to front on the worktable. When it passes through the strip cutting knife group, it will be sheared by the upper and lower blades and then divided into multiple silicone strips. The whole process can be carried out automatically, with high work efficiency. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention from the left perspective;

[0015] Figure 2 This is the front view of the strip-cutting blade assembly;

[0016] Figure 3 yes Figure 2 Enlarged view of section A;

[0017] Figure 4 This is a perspective view of the present invention;

[0018] Figure 5 It is a 3D image of the scraper. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly. Furthermore, descriptions involving "preferred," "second-preferred," etc., in this utility model are 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 "preferred" or "second-preferred" may explicitly or implicitly include at least one of those features.

[0021] Reference Figures 1 to 5 This utility model proposes a silicone strip cutting machine, including a frame 1 and a worktable 2 fixed on the frame 1. The frame 1 is provided with a feeding mechanism that can drive sheet-like workpieces to move from back to front on the worktable 2. The frame 1 is also provided with a cutting knife assembly that can cut the workpieces on the worktable 2 into strips. The cutting knife assembly includes an upper knife assembly 3 and a lower knife assembly 4. The upper knife assembly 3 includes a first cutting shaft 31 arranged in the left-right direction and located on the worktable 2, and a plurality of upper blades 32 sleeved on the first cutting shaft 31. The lower knife assembly 4 includes a second cutting shaft 41 arranged in the left-right direction and located below the worktable 2, and a plurality of lower blades 42 sleeved on the second cutting shaft 41. The frame 1 is also provided with a power device that can drive the first cutting shaft 31 and the second cutting shaft 41 to rotate synchronously in opposite directions. The lower blades 42 correspond one-to-one with the upper blades 32, and the upper part of the lower blade 42 is in contact with the lower part of the corresponding upper blade 32.

[0022] Preferably, both the upper blade 32 and the lower blade 42 are circular blades, and the worktable 2 is provided with a clearance groove 21 that can avoid the upper blade 32 and the lower blade 42.

[0023] The number of upper blades 32 and lower blades 42 are equal, for example, 10, 12, 15, 20, etc.

[0024] With this design, under the pushing force of the feeding mechanism, the sheet-like silicone moves from back to front on the worktable 2. When it passes through the strip cutting blade assembly, it is sheared by the upper blade 32 and the lower blade 42, and is then divided into multiple silicone strips. The whole process can be carried out automatically, with high work efficiency.

[0025] Furthermore, the first cutter shaft 31 is parallel to the second cutter shaft 41. Of any two adjacent upper blades 32, one is in contact with the left side of the corresponding lower blade 42, and the other is in contact with the right side of the corresponding lower blade 42. Because the upper blades 32 and lower blades 42 are in contact with each other, axial pressure is generated at the point of contact. This design ensures that approximately half of the upper blades 32 are in contact with the left side of the lower blade 42, and approximately half are in contact with the right side of the lower blade 42. The axial pressure on these two parts of the upper blades 32 can essentially cancel each other out. The lower blade 42 experiences the same force as the upper blades 32. This design ensures that all upper blades 32 remain in contact with the lower blades 42, preventing gaps between the upper blades 32 and lower blades 42 that would make it difficult to cut the silicone sheet.

[0026] In a preferred embodiment of this utility model, the upper blade 32 with odd numbers is attached to the right side of the corresponding lower blade 42, and the upper blade 32 with even numbers is attached to the left side of the corresponding lower blade 42.

[0027] Furthermore, a scraper 5 is provided on the frame 1, located in front of the first cutter shaft 31. The distance between the front end of the scraper 5 and the first cutter shaft 31 is less than or equal to 10 mm. The scraper 5 is provided with a clearance groove 51 that can avoid the upper blade 32. The scraper 5 can be a one-piece structure or a structure formed by assembling multiple small scrapers 53.

[0028] Preferably, a discharge channel 50 is formed between the lower surface of the scraper 5 and the worktable 2, and the width of the discharge channel 50 gradually increases from back to front. The design of the scraper 5 can prevent too much silicone from adhering to the first cutting shaft 31, which would prevent subsequent silicone sheets from passing between the first cutting shaft 31 and the second cutting shaft 41. Setting the discharge channel 50 as narrow at the back and wide at the front facilitates the cutting of silicone strips from back to front, avoiding excessive resistance when the silicone strip passes through the discharge channel 50.

[0029] In a preferred embodiment of this utility model, the feeding mechanism includes a feeding power roller 61 located before the cutting blade group and a feeding roller group located after the cutting blade group. The feeding roller group includes an active feeding roller 62 and a driven feeding roller 63 located below the active feeding roller 62. The top of the driven feeding roller 63 is higher than the worktable 2, and there is a gap between the active feeding roller 62 and the driven feeding roller 63 for the workpiece to pass through.

[0030] As a further optimization of the above scheme, the feeding power roller 61 is located below the front edge of the worktable 2, and the distance between the front edge of the worktable 2 and the feeding power roller 61 is less than or equal to 20mm. A driven feeding roller 64 is also provided on the frame 1, located in front of the feeding power roller 61, with the top of the driven feeding roller 64 lower than the top of the feeding power roller 61. The power unit includes a first motor 71, which is connected to a reducer 72. The output shaft of the reducer 72 is connected to the second cutter shaft 41 via a synchronous toothed belt mechanism 75. The second cutter shaft 41 is connected to the first cutter shaft 31 via a gear set, and the first cutter shaft 31 is connected to the active feeding roller 62 via the synchronous toothed belt mechanism 75. The second cutter shaft 41 is connected to the feeding power roller 61 via the synchronous toothed belt mechanism 75. Specifically, the gear set includes a first gear 73 mounted on the first cutter shaft 31 and a second gear 74 mounted on the second cutter shaft 41. The first gear 73 and the second gear 74 mesh, and their pitch circle diameters are equal. All synchronous toothed belt mechanisms 75 consist of two pulleys and a toothed belt, with the pulleys having teeth that correspond to the toothed grooves on the toothed belt.

[0031] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A silicone strip cutting machine, characterized in that, The assembly includes a frame (1) and a worktable (2) fixed on the frame (1). The frame (1) is equipped with a feeding mechanism that can drive sheet-like workpieces to move from back to front on the worktable (2). The frame (1) is also equipped with a cutting knife assembly that can cut the workpieces on the worktable (2) into strips. The cutting knife assembly includes an upper knife assembly (3) and a lower knife assembly (4). The upper knife assembly (3) includes a first cutter shaft (31) arranged in the left-right direction and located on the worktable (2), and a blade sleeved on the first cutter shaft (31). 1) Multiple upper blades (32) on the machine, the lower blade assembly (4) includes a second blade shaft (41) arranged in the left-right direction and located below the worktable (2), and multiple lower blades (42) sleeved on the second blade shaft (41). The frame (1) is also provided with a power device that can drive the first blade shaft (31) and the second blade shaft (41) to rotate synchronously in opposite directions. The lower blades (42) correspond one-to-one with the upper blades (32), and the upper part of the lower blade (42) is in contact with the lower part of the corresponding upper blade (32).

2. The silicone strip cutting machine according to claim 1, characterized in that, Both the upper blade (32) and the lower blade (42) are circular blades, and the worktable (2) is provided with a clearance groove (21) that can avoid the upper blade (32) and the lower blade (42).

3. A silicone strip cutting machine according to claim 1, characterized in that, The first cutter shaft (31) is parallel to the second cutter shaft (41). Among any two adjacent upper blades (32), one is in contact with the left side of the corresponding lower blade (42), and the other is in contact with the right side of the corresponding lower blade (42).

4. A silicone strip cutting machine according to claim 3, characterized in that, Counting from left to right, the upper blade (32) with odd numbers is attached to the right side of the corresponding lower blade (42), and the upper blade (32) with even numbers is attached to the left side of the corresponding lower blade (42).

5. A silicone strip cutting machine according to claim 1, characterized in that, The frame (1) is provided with a scraper (5) located in front of the first cutter shaft (31). The distance between the front end of the scraper (5) and the first cutter shaft (31) is less than or equal to 10 mm. The scraper (5) is provided with a clearance groove (51) that can avoid the upper blade (32).

6. A silicone strip cutting machine according to claim 5, characterized in that, A discharge channel (50) is formed between the lower surface of the scraper (5) and the worktable (2), and the width of the discharge channel (50) gradually increases from back to front.

7. A silicone strip cutting machine according to claim 1, characterized in that, The feeding mechanism includes a feed roller (61) located before the cutting blade assembly and a feed roller assembly located after the cutting blade assembly. The feed roller assembly includes an active feed roller (62) and a driven feed roller (63) located below the active feed roller (62). The top of the driven feed roller (63) is higher than the worktable (2). There is a gap between the active feed roller (62) and the driven feed roller (63) for the workpiece to pass through.

8. A silicone strip cutting machine according to claim 7, characterized in that, The power unit includes a first motor (71), which is connected to a reducer (72). The output shaft of the reducer (72) is connected to the second cutter shaft (41) via a synchronous toothed belt mechanism (75). The second cutter shaft (41) is connected to the first cutter shaft (31) via a gear set. The first cutter shaft (31) is connected to the active feeding roller (62) via the synchronous toothed belt mechanism (75).

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