An adjustable positioning device for envelope cutting

Abstract

The utility model relates to an envelope cutting technical field especially, more particularly to an adjustable envelope cutting positioning device. Its technical scheme includes: base, fixed plate and holding panel, the rear end surface of base is installed with drive motor, the output shaft of drive motor is installed with screw rod, be equipped with first hydraulic ram and holding panel on base, the both ends of holding panel all are welded with guide frame, the top end surface fixed mounting of guide frame has abutment, second hydraulic ram is installed on abutment, the output shaft fixed mounting of first hydraulic ram has fixed plate, the bottom end surface of fixed plate is installed with cutting blade, the bottom end surface of fixed plate is provided with U-shaped extrusion frame. The utility model satisfies envelope cutting, can adopt positioning frame to envelope adjustment positioning before cutting, and when the cutting blade is driven to cut envelope under the movement of fixed plate, U-shaped extrusion frame carries out secondary positioning to envelope when synchronous movement, avoids the deviation influence cutting accuracy when envelope cutting.

Description

Technical Field

[0001] This utility model relates to the field of envelope cutting technology, specifically to an adjustable positioning device for envelope cutting. Background Technology

[0002] Envelopes, as bag-shaped packaging used for mailing letters and ensuring the confidentiality of their contents, are widely used in the field of information transmission. Their conventional form is a rectangular paper bag, and cutting is one of the key processes in the production and processing of envelopes.

[0003] A search revealed that patent CN212795177U discloses an envelope cutting device for communication technology. While this device facilitates automatic unloading and solves the problem of slow manual unloading, current envelope cutting devices have certain shortcomings in practical applications. These devices generally use a direct pressing method with a cutter for cutting, which can easily cause the envelope to shift position during the cutting process. This directly affects the dimensional accuracy and edge regularity of the cut envelopes, severely restricting the stability of product quality. Therefore, existing envelope cutting technology still has significant room for improvement. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an adjustable positioning device for cutting envelopes, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] An adjustable envelope cutting positioning device includes a base, a fixing plate, and a holding panel.

[0007] A drive motor is installed on the rear end face of the base, and a lead screw is installed on the output shaft of the drive motor. A first hydraulic rod and a holding panel are provided on the base. Guide frames are welded to both ends of the holding panel. A base is fixedly installed on the top surface of the guide frame. A second hydraulic rod is installed on the base. A positioning frame is fixedly installed on the output shaft of the second hydraulic rod.

[0008] A fixing plate is fixedly installed on the output shaft of the first hydraulic rod. A cutting blade is installed on the bottom end face of the fixing plate, and a U-shaped extrusion frame is provided on the bottom end face of the fixing plate.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, a support frame is installed on the first hydraulic rod, and the end of the support frame facing away from the first hydraulic rod is fixedly installed on the base.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] The support frame provides stable support for the first hydraulic rod, allowing it to be mounted and fixed on the base.

[0013] Furthermore, a silicone pad is fitted to the bottom surface of the positioning frame, and a limit rod is welded to the top surface of the positioning frame, with the limit rod slidably sleeved inside the base.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The silicone pad on the bottom surface of the positioning frame is soft and has a certain friction. When positioning the envelope, it can not only avoid causing indentations or damage to the surface of the envelope, thus protecting the envelope, but also enhance the friction between the positioning frame and the envelope, improving the positioning effect. The limiting rod is slidably sleeved in the base, which can restrict the movement direction of the positioning frame, ensuring that the positioning frame can only move forward and backward stably in the vertical direction under the drive of the second hydraulic rod, avoiding its deviation and ensuring the accuracy of positioning.

[0016] Furthermore, the guide frame is slidably sleeved on the base, and the inner diameter of the base is adapted to the size of the base.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The guide frame slides onto the base, and the two are sized to fit each other, allowing the guide frame to slide smoothly along the base, reducing shaking and jamming during the sliding process. This ensures the stability of the holding panel as it moves with the guide frame, ensuring that the envelope does not shift during the movement, which is beneficial for the accurate cutting work in the subsequent process.

[0019] Furthermore, a connecting frame is welded to the inner wall of the guide frame, and the connecting frame is threaded onto the lead screw.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] The connecting frame is connected to the lead screw via a thread. When the drive motor drives the lead screw to rotate, it can convert the rotational motion of the lead screw into the linear motion of the connecting frame, which in turn drives the guide frame and the holding panel to move along the base, thereby adjusting the position of the envelope so that the envelope can reach the bottom end face of the cutting blade for cutting.

[0022] Furthermore, a connecting spring is installed on the top surface of the U-shaped extrusion frame, and the end of the connecting spring facing away from the U-shaped extrusion frame is fixedly installed on the bottom surface of the fixing plate.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The connecting spring has elastic extension and contraction characteristics. When the fixed plate descends, the U-shaped compression frame first contacts the envelope. As the fixed plate continues to descend, the connecting spring is compressed, generating an elastic force that causes the U-shaped compression frame to apply continuous compression force to the envelope, achieving secondary compression positioning. This ensures the firmness of the positioning and avoids damage to the envelope due to excessive compression force. At the same time, when the fixed plate rises, the connecting spring can drive the U-shaped compression frame to reset, facilitating the next operation.

[0025] Furthermore, a guide rod is fixedly installed on the bottom end face of the fixing plate, and a connecting rod is slidably sleeved inside the guide rod. The bottom end face of the connecting rod is fixedly connected to the U-shaped extrusion frame.

[0026] The beneficial effects of adopting the above-mentioned further solutions are:

[0027] The sliding fit between the guide rod and the connecting rod guides the movement direction of the U-shaped compression frame, ensuring that the U-shaped compression frame can only move vertically up and down under the action of the connecting spring. This prevents horizontal deviation or swaying during the compression process, ensuring the accuracy of the secondary compression positioning and allowing the U-shaped compression frame to always act on the designated position of the envelope, thus improving the positioning effect.

[0028] This invention provides an adjustable positioning device for cutting envelopes. It has the following advantages:

[0029] The drive motor rotates the lead screw, which in turn drives the connecting frame and guide frame to slide along the base, thereby adjusting the position of the holding panel and facilitating the delivery of envelopes to the cutting blade. At the same time, the second hydraulic rod can drive the positioning frame to rise and fall, adjusting the height of the positioning frame according to the thickness of the envelope to ensure effective positioning of envelopes of different thicknesses, thus expanding the applicability of the device.

[0030] The positioning frame initially positions the envelope under the drive of the second hydraulic rod, while the U-shaped compression frame performs secondary compression positioning during the descent of the fixed plate. This dual positioning function firmly fixes the envelope, preventing it from shifting during the cutting process, providing a reliable guarantee for the precise cutting of the cutting blade, and effectively improving the accuracy of the cutting. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0032] In the attached diagram:

[0033] Figure 1 This is a front view schematic diagram of the present invention;

[0034] Figure 2This is a schematic diagram of the interior of the base of this utility model;

[0035] Figure 3 This is a side view of the guide frame of this utility model;

[0036] Figure 4 This is a schematic diagram of the installation of the U-shaped extrusion frame of this utility model.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 1. Base; 2. Drive motor; 201. Lead screw; 3. First hydraulic rod; 301. Support frame; 4. Fixing plate; 401. Cutting blade; 402. U-shaped extrusion frame; 403. Connecting spring; 404. Guide rod; 405. Connecting rod; 5. Container panel; 501. Guide frame; 502. Limiting rod; 503. Connecting frame; 6. Base; 601. Second hydraulic rod; 7. Positioning frame. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0041] Example 1

[0042] An adjustable envelope cutting positioning device includes a base 1, a fixing plate 4, and a holding panel 5.

[0043] A drive motor 2 is installed on the rear end face of the base 1. A lead screw 201 is installed on the output shaft of the drive motor 2. A first hydraulic rod 3 and a holding panel 5 are provided on the base 1. Guide frames 501 are welded to both ends of the holding panel 5. A base 6 is fixedly installed on the top surface of the guide frame 501. A second hydraulic rod 601 is installed on the base 6. A positioning frame 7 is fixedly installed on the output shaft of the second hydraulic rod 601.

[0044] A fixing plate 4 is fixedly installed on the output shaft of the first hydraulic rod 3. A cutting blade 401 is installed on the bottom end face of the fixing plate 4, and a U-shaped extrusion frame 402 is provided on the bottom end face of the fixing plate 4.

[0045] A support frame 301 is installed on the first hydraulic rod 3. The end of the support frame 301 away from the first hydraulic rod 3 is fixedly installed on the base 1. The support frame 301 can provide stable support for the first hydraulic rod 3, so that the first hydraulic rod 3 can be installed and fixed on the base 1.

[0046] A silicone pad is fitted to the bottom surface of the positioning frame 7, and a limiting rod 502 is welded to the top surface of the positioning frame 7. The limiting rod 502 is slidably sleeved in the base 6. The silicone pad on the bottom surface of the positioning frame 7 is soft and has a certain friction. When positioning the envelope, it can not only avoid causing indentations or damage to the surface of the envelope, thus protecting the envelope, but also enhance the friction between the positioning frame 7 and the envelope, thereby improving the positioning effect. The limiting rod 502, which is slidably sleeved in the base 6, can restrict the movement direction of the positioning frame 7, ensuring that the positioning frame 7 can only move stably forward and backward in the vertical direction under the drive of the second hydraulic rod 601, avoiding deviation and ensuring the accuracy of positioning.

[0047] The guide frame 501 is slidably sleeved on the base 1. The inner diameter of the base 1 is adapted to the size of the base 1. The guide frame 501 is slidably sleeved on the base 1 and the two are adapted to each other. This allows the guide frame 501 to slide smoothly along the base 1, reducing shaking and jamming during the sliding process. This ensures the stability of the holding panel 5 when it moves with the guide frame 501, and ensures that the position of the envelope does not shift during the movement. This is beneficial to the accurate execution of subsequent cutting work.

[0048] A connecting frame 503 is welded to the inner wall of the guide frame 501. The connecting frame 503 is threaded onto the lead screw 201. The connecting frame 503 is connected to the lead screw 201 by the thread. When the drive motor 2 drives the lead screw 201 to rotate, it can convert the rotational motion of the lead screw 201 into the linear motion of the connecting frame 503, thereby driving the guide frame 501 and the holding panel 5 to move along the base 1, thereby adjusting the position of the envelope so that the envelope can reach the bottom end face of the cutting blade 401 for cutting.

[0049] Example 2

[0050] To perform secondary compression positioning during envelope cutting, for example, such as Figures 1 to 4 As shown, this utility model also includes:

[0051] A connecting spring 403 is installed on the top surface of the U-shaped compression frame 402. The end of the connecting spring 403 away from the U-shaped compression frame 402 is fixedly installed on the bottom surface of the fixed plate 4. The connecting spring 403 has elastic extension and contraction characteristics. When the fixed plate 4 descends, the U-shaped compression frame 402 first contacts the envelope. As the fixed plate 4 continues to descend, the connecting spring 403 is compressed, generating an elastic force, so that the U-shaped compression frame 402 applies continuous compression force to the envelope, realizing secondary compression positioning. This ensures the firmness of the positioning and avoids damage to the envelope due to excessive compression force. At the same time, when the fixed plate 4 rises, the connecting spring 403 can drive the U-shaped compression frame 402 to reset, which is convenient for the next operation.

[0052] A guide rod 404 is fixedly installed on the bottom end face of the fixed plate 4. A connecting rod 405 is slidably sleeved inside the guide rod 404. The bottom end face of the connecting rod 405 is fixedly connected to the U-shaped extrusion frame 402. The sliding cooperation between the guide rod 404 and the connecting rod 405 can guide the movement direction of the U-shaped extrusion frame 402, ensuring that the U-shaped extrusion frame 402 can only move up and down in the vertical direction under the action of the connecting spring 403, avoiding horizontal deviation or shaking during the extrusion process, ensuring the accuracy of the secondary extrusion positioning, and enabling the U-shaped extrusion frame 402 to always act on the designated position of the envelope, thus improving the positioning effect.

[0053] Furthermore, the drive motor 2, the first hydraulic rod 3, and the second hydraulic rod 601 of the device can all be powered by an external power source and controlled by an external control switch. The power supply control principle and circuit connection method of the external power source and the external control switch are common functional module designs. They are common knowledge in the fields of electrical automation control and mechanical equipment. The relevant technologies have been widely used and the principles are clear, so there is no need to elaborate further.

[0054] Working principle:

[0055] First, place the envelope to be cut on the holding panel 5. After placement, activate the second hydraulic rod 601 on the base 6. The output shaft of the second hydraulic rod 601 pushes the positioning frame 7 downward. At this time, the limiting rod 502 slides inside the base 6, restricting the movement direction of the positioning frame 7, so that the positioning frame 7 descends smoothly until the silicone pad on its bottom surface contacts and presses against the surface of the envelope, completing the initial positioning of the envelope.

[0056] Next, the drive motor 2 is started. The output shaft of the drive motor 2 drives the lead screw 201 to rotate. Since the connecting frame 503 is installed on the lead screw 201 by threads and the connecting frame 503 is welded to the inner wall of the guide frame 501, and the guide frame 501 is slidably sleeved on the base 1, the rotation of the lead screw 201 will be converted into the linear motion of the connecting frame 503, which in turn drives the guide frame 501 and the holding panel 5 to slide along the base 1, conveying the envelope to the designated position below the cutting blade 401.

[0057] Then, the first hydraulic rod 3 is activated. Under the stable support of the support frame 301, the output shaft of the first hydraulic rod 3 pushes the fixed plate 4 downward. During the descent of the fixed plate 4, the U-shaped compression frame 402 will first contact the envelope. As the fixed plate 4 continues to descend, the connecting spring 403 is compressed, and at the same time, the connecting rod 405 slides within the guide rod 404, ensuring that the U-shaped compression frame 402 applies continuous compression force to the envelope in the vertical direction, achieving secondary compression positioning.

[0058] Finally, when the U-shaped compression frame 402 is positioned for the second time, the fixing plate 4 continues to move downwards and the bottom cutting blade 401 contacts the envelope, performing a cutting operation on the envelope. After the cutting is completed, the output shafts of the first hydraulic rod 3 and the second hydraulic rod 601 retract, driving all components to reset, so that the next cutting operation can be carried out.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable envelope cutting positioning device, comprising a base (1), a fixing plate (4), and a holding panel (5), characterized in that: A drive motor (2) is installed on the rear end face of the base (1). A lead screw (201) is installed on the output shaft of the drive motor (2). A first hydraulic rod (3) and a holding panel (5) are provided on the base (1). Guide frames (501) are welded to both ends of the holding panel (5). A base (6) is fixedly installed on the top surface of the guide frame (501). A second hydraulic rod (601) is installed on the base (6). A positioning frame (7) is fixedly installed on the output shaft of the second hydraulic rod (601). A fixing plate (4) is fixedly installed on the output shaft of the first hydraulic rod (3). A cutting blade (401) is installed on the bottom end face of the fixing plate (4), and a U-shaped extrusion frame (402) is provided on the bottom end face of the fixing plate (4).

2. The adjustable envelope cutting positioning device according to claim 1, characterized in that: A support frame (301) is installed on the first hydraulic rod (3), and the end of the support frame (301) facing away from the first hydraulic rod (3) is fixedly installed on the base (1).

3. The adjustable envelope cutting positioning device according to claim 1, characterized in that: The bottom surface of the positioning frame (7) is fitted with a silicone pad, and the top surface of the positioning frame (7) is welded with a limiting rod (502), which is slidably sleeved in the base (6).

4. The adjustable envelope cutting positioning device according to claim 1, characterized in that: The guide frame (501) is slidably sleeved on the base (1), and the inner diameter of the base (1) is adapted to the size of the base (1).

5. The adjustable envelope cutting positioning device according to claim 4, characterized in that: The inner wall of the guide frame (501) is welded with a connecting frame (503), which is threaded onto the lead screw (201).

6. The adjustable envelope cutting positioning device according to claim 1, characterized in that: A connecting spring (403) is installed on the top surface of the U-shaped extrusion frame (402), and the end of the connecting spring (403) away from the U-shaped extrusion frame (402) is fixedly installed on the bottom surface of the fixing plate (4).

7. The adjustable envelope cutting positioning device according to claim 6, characterized in that: A guide rod (404) is fixedly installed on the bottom end face of the fixed plate (4), and a connecting rod (405) is slidably sleeved inside the guide rod (404). The bottom end face of the connecting rod (405) is fixedly connected to the U-shaped extrusion frame (402).

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