A pressing plate connecting structure, a bag opening clamp and a bag opening machine

Abstract

The utility model discloses a kind of pressing plate connecting structure, bag opening clamp and bag opening machine, it is related to clothing production equipment technical field, wherein, pressing plate connecting structure, comprising: first connecting piece, set in the first end of the pressing plate, for the pressing plate with the base plate articulates;Second connecting piece, set in the second end of the pressing plate, for the pressing plate with the driving portion is connected, when the driving portion drives the pressing plate relative to the base plate movement, the second connecting piece allows the relative motion of the pressing plate relative to the driving portion, the direction of the relative motion is different from the driving direction of the driving portion;The present pressing plate connecting structure, bag opening clamp and bag opening machine effectively avoid the instability of cloth clamping caused by the irreversible fracture or bending of pressing plate and / or base plate.

Description

Technical Field

[0001] This utility model relates to the field of garment production equipment technology, and more specifically, to a pressure plate connection structure, a bag opening clamp, and a bag opening machine. Background Technology

[0002] A pocket-opening machine is a machine that uses a folding knife device to fold cut fabric and then sew it to form a pocket. The current pocket-opening machine uses the following process: the pocket is formed by sewing together three pieces of fabric: the bottom pocket, the lip pocket, and the main pocket. The operator needs to place the main pocket on a clamp, fold the bottom pocket and the lip pocket and place them on a plastic template. The machine first cuts the main pocket fabric, then moves the clamp to the plastic template to overlap the three pieces of fabric: the bottom pocket, the lip pocket, and the main pocket. Finally, the clamp is moved back to sew.

[0003] In the above process, after the operator places the bag fabric, the fabric is laser-cut, and the upper folding knife folds the fabric in all directions. At this time, the clamp opens the lower pressure plate 2 to clamp the fabric before proceeding to other process steps. Existing bag opening clamps are as follows: Figure 1 As shown, by setting a front fixing block at the front end of the pressure plate 2 and connecting it to the base plate 1, and by setting two long grooves at the connection between the pressure plate 2 and the front fixing block, the strength of the pressure plate 2 at this point is reduced. When the cylinder of the drive unit 3 is activated, the pressure plate 2 first undergoes elastic deformation by bending at the outlet of the long groove, so that a space appears between the pressure plate 2 and the base plate, allowing the fabric to enter the space. Then the cylinder of the drive unit 3 is reset, driving the pressure plate 2 to reset, thereby achieving the clamping of the fabric.

[0004] However, in actual use, when the driving unit 3 drives the pressure plate 2 to move, both the pressure plate 2 and the base plate 1 have a certain bending deformation. After multiple bends, there is a breakage at the bending position and / or loss of elastic deformation, causing irreversible bending and resulting in unstable fabric clamping.

[0005] In summary, how to solve the problem of unstable fabric clamping by the pressure plate is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a pressure plate connection structure, which enables the pressure plate and the substrate to rotate relative to each other by hinged first end of the pressure plate, thereby reducing the bending deformation and deformation number of the pressure plate and the substrate, and avoiding the unstable fabric clamping caused by irreversible breakage or bending of the pressure plate and / or the substrate.

[0007] Another objective of this utility model is to provide a bag-opening clamp that includes the above-mentioned pressure plate connection structure, has the same technical features, and can solve the same technical problems.

[0008] Another objective of this utility model is to provide a bag-opening machine that includes the above-mentioned bag-opening clamp, has the same technical features, and can solve the same technical problems.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A pressure plate connection structure is used to connect both ends of the pressure plate to a base plate and a driving part, respectively;

[0011] The pressure plate connection structure includes:

[0012] A first connector is disposed at the first end of the pressure plate and is used to hinge the pressure plate to the substrate.

[0013] The second connector is disposed at the second end of the pressure plate and is used to connect the pressure plate to the driving unit. When the driving unit drives the pressure plate to move relative to the substrate, the second connector allows the pressure plate to move relative to the driving unit, and the direction of the relative movement is different from the driving direction of the driving unit.

[0014] Preferably, the first connector includes a hinge assembly, which includes a fixed part and a rotating part that are rotatably mounted relative to each other;

[0015] The fixing part is fixedly connected to the base plate, and the rotating part is fixedly connected to the pressure plate.

[0016] Preferably, the rotating part includes an extension portion for passing through the mounting hole of the substrate, so that the pressure plate and the fixing part are respectively arranged on different sides of the substrate.

[0017] Preferably, the second connector includes an elastic connector that can be compressed or stretched in a preset direction, the preset direction being different from the driving direction of the driving part.

[0018] A bag-opening clamp, comprising:

[0019] The pressure plate connection structure described in any of the above items;

[0020] substrate;

[0021] The driving unit has its fixed end fixedly connected to the substrate;

[0022] The pressure plate has a first end connected to the substrate via a first connector, and a second end connected to the drive end of the drive unit via a second connector.

[0023] Preferably, the first connector includes a hinge assembly, and the hinge assembly and the pressure plate are arranged on the same side of the substrate.

[0024] Preferably, the first connector includes a hinge assembly, which includes a fixed part and a rotating part that are rotatably mounted relative to each other;

[0025] The fixing part is fixedly connected to the substrate;

[0026] The rotating part includes an extension part, which passes through the mounting groove of the substrate and is fixedly connected to the pressure plate, so that the pressure plate and the fixed part are respectively arranged on different sides of the substrate.

[0027] Preferably, the drive unit includes a drive cylinder and a connecting rod;

[0028] The fixed end of the drive cylinder is fixedly connected to the base plate, and the drive end of the drive cylinder is fixedly connected to the connecting rod.

[0029] The connecting rod passes through a through hole on the surface of the substrate, and one end of the connecting rod passing through the substrate is connected to the pressure plate through the second connecting member.

[0030] Preferably, the surface of the pressure plate is provided with an elongated pre-deformation groove, which is located on the surface of the pressure plate near the position where it connects with the first connector.

[0031] A bag-opening machine, comprising the bag-opening clamp described in any one of the above claims.

[0032] The pressure plate connection structure provided by this utility model has at least the following advantages compared with the prior art:

[0033] The pressure plate and the substrate are hinged by the first connector, so that the pressure plate and the substrate have the ability to rotate relative to each other. When the two move relative to each other, the rotation of the two replaces the bending deformation of the two to meet the displacement requirements of the relative movement of the pressure plate and the substrate, thereby reducing the deformation and deformation frequency of the pressure plate and the substrate, and thus avoiding the unstable clamping of the fabric caused by irreversible breakage or bending of the pressure plate and the substrate.

[0034] The bag-opening clamp provided by this utility model includes the above-mentioned pressure plate connection structure and has the same beneficial effects.

[0035] The bag opening machine provided by this utility model includes the above-mentioned bag opening clamp and has the same beneficial effects. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of a design scheme in the prior art;

[0038] Figure 2 This is a schematic diagram of the bag-opening clamp provided by this utility model;

[0039] Figure 3 A structural schematic diagram of the bag-opening clamp provided by this utility model from another perspective;

[0040] Figure 4 A cross-sectional view of the bag-opening clamp provided by this utility model;

[0041] Figure 5 This is a schematic diagram showing the assembly of the first connector, the base plate, and the pressure plate provided by this utility model.

[0042] Figure 6 This is a schematic diagram showing the assembly of the drive unit, the base plate, and the pressure plate provided by this utility model.

[0043] Figure 7 Provided by this utility model Figure 6 Enlarged view of point A in the middle;

[0044] Figure 8 This is a schematic diagram of another embodiment of the bag-opening clamp provided by this utility model;

[0045] Figure 9 This is a structural schematic diagram from another perspective of another embodiment of the bag-opening clamp provided by this utility model;

[0046] Figure 10 This is a cross-sectional view of another embodiment of the bag-opening clamp provided by this utility model;

[0047] Figure 11 This is a schematic diagram of another embodiment of the first connector, substrate, and pressure plate provided by this utility model.

[0048] In the picture:

[0049] 1. Substrate; 11. Mounting slot;

[0050] 2. Pressure plate; 21. First connecting piece; 22. Second connecting piece; 221. Nut; 222. Bolt; 223. Washer;

[0051] 3. Drive unit; 31. Drive cylinder; 32. Connecting rod;

[0052] 4. Spring plate;

[0053] 5. Hinged assembly; 51. Fixed part; 52. Rotating part. Detailed Implementation

[0054] 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.

[0055] The core of this utility model is to provide a method that allows the pressure plate and the substrate to rotate relative to each other by hinged first end of the pressure plate, thereby reducing the bending deformation and deformation frequency of the pressure plate and the substrate, and avoiding the unstable clamping of the fabric caused by irreversible breakage or bending of the pressure plate and / or the substrate.

[0056] Another core aspect of this utility model is to provide a bag-opening clamp that includes the above-mentioned pressure plate connection structure, which has the same technical features and can solve the same technical problems.

[0057] Another core aspect of this utility model is to provide a bag-opening machine that includes the aforementioned bag-opening clamp, possessing the same technical features and capable of solving the same technical problems.

[0058] Example 1:

[0059] Please refer to Figures 2-7 A pressure plate connection structure is used to connect the two ends of the pressure plate 2 to the base plate 1 and the driving part 3 respectively.

[0060] The pressure plate connection structure includes:

[0061] The first connector 21 is disposed at the first end of the pressure plate 2 and is used to hinge the pressure plate 2 to the substrate 1.

[0062] The second connector 22 is disposed at the second end of the pressure plate 2 and is used to connect the pressure plate 2 to the drive unit 3. When the drive unit 3 drives the pressure plate 2 to move relative to the substrate 1, the second connector 22 allows the pressure plate 2 to move relative to the drive unit 3. The direction of the relative movement is different from the driving direction of the drive unit 3.

[0063] like Figures 2-3 As shown, the first connector 21 adopts a hinge structure, which hinges the first end of the pressure plate 2 to the substrate 1. When the pressure plate 2 is driven to move, under the guidance of the hinge structure, the pressure plate 2 rotates relative to the substrate 1, thereby preventing the pressure plate 2 and the substrate 1 from bending and deforming, thereby preventing the pressure plate 2 and / or the substrate 1 from breaking and deforming irreversibly, and ensuring the clamping effect of the pressure plate 2 and the substrate 1 on the fabric.

[0064] like Figure 3 and Figure 4As shown, when the driving unit 3 drives the pressure plate 2 to move relative to the substrate 1, since the first end of the pressure plate 2 is connected to the substrate 1 through the first connector 21, and the first connector 21 can undergo elastic deformation, the movement of the first end of the pressure plate 2 is constrained, so that the second end of the pressure plate 2 can only swing. However, the swing direction is different from the driving direction of the driving unit 3. Therefore, the second connector 22 is used to connect the driving unit 3 and the second end of the pressure plate 2. The second connector 22 allows the second end of the pressure plate 2 to move relative to the driving unit 3, but the relative movement direction is different from the driving direction. That is, it ensures that the pressure plate 2 can be driven by the driving unit 3 to move effectively. During the movement, the second end of the pressure plate 2 moves relative to the driving unit 3, thereby solving the problem of the second end of the pressure plate 2 and the driving unit 3 moving in different directions due to the restricted movement of the first end of the pressure plate 2, and thus avoiding the driving unit 3 from getting stuck.

[0065] In some embodiments, the first connector 21 includes a hinge assembly 5, which includes a fixed portion 51 and a rotating portion 52 that are rotatably mounted relative to each other.

[0066] The fixing part 51 is fixedly connected to the base plate 1, and the rotating part 52 is fixedly connected to the pressure plate 2.

[0067] like Figure 5 As shown, the first connector 21 includes a fixing part 51 and a rotating part 52 that are fixedly connected to the substrate 1 and the pressure plate 2 respectively. By rotating the fixing part 51 and the rotating part 52 relative to each other, the pressure plate 2 is guided to rotate relative to the substrate 1, thereby preventing the substrate 1 and the pressure plate 2 from being completely deformed due to the constraint of the first end of the pressure plate 2.

[0068] In some embodiments, the rotating part 52 includes an extension portion for passing through the mounting hole of the substrate 1, so that the pressure plate 2 and the fixing part 51 are respectively arranged on different sides of the substrate 1.

[0069] like Figure 11 As shown, the hinge assembly 5 can be set on the upper surface of the substrate 1 for easy maintenance; or it can be set on the lower surface for easy connection with the pressure plate 2.

[0070] When the hinge assembly 5 is disposed on the upper surface of the substrate 1, it can be connected to the first end of the pressure plate 2 by providing an extension portion and passing the extension portion through the mounting groove 11 of the substrate 1.

[0071] In some embodiments, the second connector 22 includes an elastic connector that can be compressed or stretched in a preset direction, which is different from the driving direction of the drive unit 3.

[0072] Since the relative movement between the first end of the pressure plate 2 and the substrate 1 is restricted by the first connecting member 21, the second end of the pressure plate 2 will have a certain relative movement with the driving part 3 when the second end of the pressure plate 2 is driven by the driving part 3. Otherwise, the driving part 3 will be jammed. Therefore, the driving part 3 and the second end of the pressure plate 2 are connected by the second connecting member 22 of the elastic connecting member structure, so that the second end of the pressure plate 2 and the driving part 3 can have relative movement perpendicular to the driving direction of the driving part 3. Thus, it is ensured that when the second end of the pressure plate 2 is driven by the driving part 3, it can both follow the movement of the driving part 3 and meet the requirement that the trajectory of the second end of the pressure plate 2 is not completely consistent with the trajectory of the driving part 3 due to the restricted movement of the first end of the pressure plate 2.

[0073] In some embodiments, the second connector 22 includes a bolt 222 that is fixedly connected to the second end of the pressure plate 2;

[0074] Bolt 222 is clearance-fitted with the mounting hole of drive part 3.

[0075] like Figure 6 and Figure 7 As shown, the second connector 22 uses bolts 222 to connect the second end of the pressure plate 2 to the drive unit 3. The drive unit 3 is provided with an assembly hole for assembling the bolts 222. The bolts 222 and the assembly hole are clearance-fitted, meaning that the bolts 222 can move in their own radial direction within the assembly hole, but cannot move in their own axial direction. Therefore, when the drive unit 3 drives the pressure plate 2 to move relative to the base plate 1, the second end of the pressure plate 2 moves along the driving direction with the drive unit 3, and also moves radially relative to the drive unit 3 along the bolts 222, so as to satisfy the swing trajectory of the second end of the pressure plate 2 relative to the first end, and avoid the movement of the drive unit 3 being jammed.

[0076] In some embodiments, the second connector 22 further includes a nut 221 that is threadedly engaged with the bolt 222;

[0077] Nut 221 is fixedly connected to the second end of pressure plate 2. Nut 221 is embedded in the mounting hole of drive part 3, and nut 221 and mounting hole of drive part 3 are clearance fit.

[0078] like Figure 6 and Figure 7 As shown, the second end of the pressure plate 2 is provided with a through hole for the stepped nut 221 to pass through. Through the threaded engagement of the nut 221 and the bolt 222, the drive part 3 and the second end of the pressure plate 2 are limited along the axial direction of the bolt 222. In some embodiments, a washer 223 is added to the head of the bolt 222 to apply a preload, which further ensures the stability of the threaded connection between the bolt 222 and the nut 221.

[0079] At the same time, the nut 221 is embedded in the assembly hole, so that both the bolt 222 and the nut 221 are clearance-fitted with the assembly hole. Therefore, the bolt 222 and the nut 221 can move synchronously in the assembly hole, thereby reducing the impact on the threaded connection between the two and preventing the threaded connection between the two from loosening.

[0080] Example 2:

[0081] like Figures 8-11 A pressure plate connection structure is used to connect the two ends of the pressure plate 2 to the base plate 1 and the driving part 3 respectively.

[0082] The pressure plate connection structure includes:

[0083] The first connector 21 is disposed at the first end of the pressure plate 2 and is used to connect the pressure plate 2 to the substrate 1. When the pressure plate 2 moves relative to the substrate 1, the first connector 21 undergoes elastic deformation before the pressure plate 2 and / or the substrate 1.

[0084] The second connector 22 is disposed at the second end of the pressure plate 2 and is used to connect the pressure plate 2 to the drive unit 3. When the drive unit 3 drives the pressure plate 2 to move relative to the substrate 1, the second connector 22 allows the pressure plate 2 to move relative to the drive unit 3. The direction of the relative movement is different from the driving direction of the drive unit 3.

[0085] like Figure 8 and Figure 9 As shown, the pressure plate 2 is arranged below the substrate 1. The first end of the pressure plate 2 is connected to the substrate 1 through the first connector 21. The connection position of the substrate 1 can be the lower surface or the upper surface. When the connection position of the substrate 1 is the upper surface, the first connector 21 needs to pass through the through hole on the surface of the substrate 1 so that the pressure plate 2 located below the substrate 1 can be connected to the connection position located above the substrate 1. The stiffness of the first connector 21 is less than that of the pressure plate 2 and / or the substrate 1. That is, when the pressure plate 2 moves relative to the substrate 1, the first connector 21 will preferentially undergo elastic deformation, thereby meeting the displacement requirement of the pressure plate 2 relative to the substrate 1. This prevents the pressure plate 2 and / or the substrate 1 from undergoing bending deformation or only undergoes slight bending deformation, thereby reducing the number of bends and deformation of the pressure plate 2 and / or the substrate 1, avoiding breakage and irreversible deformation of the pressure plate 2 and / or the substrate 1, and ensuring the clamping effect of the pressure plate 2 and the substrate 1 on the fabric.

[0086] like Figure 9 and Figure 10As shown, when the driving unit 3 drives the pressure plate 2 to move relative to the substrate 1, since the first end of the pressure plate 2 is connected to the substrate 1 through the first connector 21, and the first connector 21 can undergo elastic deformation, the movement of the first end of the pressure plate 2 is constrained, so that the second end of the pressure plate 2 can only swing. However, the swing direction is different from the driving direction of the driving unit 3. Therefore, the second connector 22 is used to connect the driving unit 3 and the second end of the pressure plate 2. The second connector 22 allows the second end of the pressure plate 2 to move relative to the driving unit 3, but the relative movement direction is different from the driving direction. That is, it ensures that the pressure plate 2 can be driven by the driving unit 3 to move effectively. During the movement, the second end of the pressure plate 2 moves relative to the driving unit 3, thereby solving the problem of the second end of the pressure plate 2 and the driving unit 3 moving in different directions due to the restricted movement of the first end of the pressure plate 2, and thus avoiding the driving unit 3 from getting stuck.

[0087] In some embodiments, the first connector 21 includes a spring plate 4, which is rectangular and arranged parallel to the pressure plate 2 and / or the base plate 1.

[0088] One side of the spring plate 4 is fixedly connected to the base plate 1 in the width direction, and the other side is fixedly connected to the pressure plate 2.

[0089] like Figure 10 and Figure 11 As shown, the first connecting member 21 includes a spring plate 4. The stiffness of the spring plate 4 is lower than that of the base plate 1 and the pressure plate 2, and it has a better elastic deformation capability. Moreover, the base plate 1 and the pressure plate 2 are connected to the two sides of the spring plate 4 in the width direction, so that when the pressure plate 2 moves relative to the base plate 1, the spring plate 4 can store a large elastic potential energy, thereby ensuring that the pressure plate 2 has sufficient clamping force when clamping the fabric, and ensuring the stability of the fabric clamping.

[0090] Meanwhile, in some embodiments, in order to further ensure that the spring plate 4 can deform before the substrate 1 and / or the pressure plate 2, a long groove is provided at the bending deformation position of the spring plate 4, so that when the pressure plate 2 moves relative to the substrate 1, the position where the long groove of the spring plate 4 is provided can bend and deform in time, thereby reducing the bending deformation of the substrate 1 and the pressure plate 2 themselves.

[0091] In some embodiments, the first connector 21 further includes a connector, and the spring plate 4 and the first end of the pressure plate 2 are fixedly connected by the connector;

[0092] The connector is used to pass through the mounting hole of the substrate 1 so that the pressure plate 2 and the spring plate 4 are respectively arranged on different sides of the substrate 1.

[0093] like Figure 11As shown, the spring plate 4 is set on the upper surface of the substrate 1 for easy replacement and maintenance. However, the pressure plate 2 is located on the lower surface of the substrate 1. Therefore, a mounting groove 11 is set on the substrate 1 so that the connecting body passes through the mounting groove 11 and connects to the spring plate 4. When the pressure plate 2 moves relative to the substrate 1, the displacement of the pressure plate 2 is transmitted to the spring plate 4 through the connecting body, which can also drive the spring plate 4 to bend and deform.

[0094] In some embodiments, the spring plate 4 and the pressure plate 2 are both disposed on the upper or lower side of the substrate 1, thus eliminating the need for a connector.

[0095] In addition to the pressure plate connection structure disclosed in the above embodiments, this utility model also provides a bag opening clamp, including:

[0096] The pressure plate connection structure of any of the above;

[0097] substrate1;

[0098] The driving unit 3 has its fixed end fixedly connected to the substrate 1;

[0099] The pressure plate 2 has its first end connected to the substrate 1 via the first connector 21, and its second end connected to the drive end of the drive unit 3 via the second connector 22.

[0100] like Figures 2-4 As shown, the pressure plate 2 is arranged on the lower surface of the substrate 1. The second end of the pressure plate 2 is driven away from or close to the lower surface of the substrate 1 by the driving part 3, thereby increasing or decreasing the gap between the pressure plate 2 and the substrate 1. During the process, the first connecting member 21 deforms by itself, and the second connecting member 22 allows the pressure plate 2 and the driving part 3 to have relative movement different from the driving direction, so as to reduce the bending deformation of the substrate 1 and the pressure plate 2, thereby avoiding the breakage and irreversible deformation of the pressure plate 2 and / or the substrate 1, and ensuring the clamping effect of the pressure plate 2 and the substrate 1 on the fabric.

[0101] In some embodiments, the first connector 21 includes a hinge assembly 5, and the hinge assembly 5 and the pressure plate 2 are arranged on the same side of the substrate 1.

[0102] The hinge assembly 5 and the pressure plate 2 are arranged on the same side of the base plate 1 to facilitate the assembly of the hinge assembly 5 and the pressure plate 2.

[0103] In some embodiments, the first connector 21 includes a hinge assembly 5, which includes a fixed portion 51 and a rotating portion 52 that are rotatably mounted relative to each other.

[0104] The fixing part 51 is fixedly connected to the base plate 1;

[0105] The rotating part 52 includes an extension part, which passes through the mounting groove 11 of the substrate 1 and is fixedly connected to the pressure plate 2, so that the pressure plate 2 and the fixing part 51 are respectively arranged on different sides of the substrate 1.

[0106] like Figure 4 and Figure 5 As shown, the hinge assembly 5 and the pressure plate 2 are respectively arranged on different sides of the substrate 1. For example, the hinge assembly 5 is arranged on the upper side of the substrate 1 for easy maintenance, while the pressure plate 2 is arranged on the lower side of the substrate 1. In this case, by providing an extension in the rotating part 52 so that it passes through the mounting groove 11 of the substrate 1, the connection between the hinge assembly 5 on the upper side of the substrate 1 and the pressure plate 2 on the lower side of the substrate 1 can be realized.

[0107] In some embodiments, the drive unit 3 includes a drive cylinder 31 and a connecting rod 32;

[0108] The fixed end of the drive cylinder 31 is fixedly connected to the base plate 1, and the drive end of the drive cylinder 31 is fixedly connected to the connecting rod 32.

[0109] The connecting rod 32 passes through the through hole on the surface of the substrate 1, and one end of the connecting rod 32 is connected to the pressure plate 2 through the second connecting member 22.

[0110] like Figures 2-4 As shown, the drive cylinder 31 is arranged on the upper side of the base plate 1, and the power transmission of the drive cylinder 31 is realized through the connecting rod 32, which helps to improve the convenience of maintenance of the drive unit 3 and reduce the space occupied at the bottom of the base plate 1.

[0111] In some embodiments, the surface of the pressure plate 2 is provided with an elongated pre-deformation groove, which is located on the surface of the pressure plate 2 near the position where it is connected to the first connector 21.

[0112] like Figure 3 As shown, although the design of the second connector 22 allows for partial relative movement between the second end of the pressure plate 2 and the driving unit 3 during the driving process, the motion trajectory of the driving end of the driving unit 3 and the motion trajectory of the second end of the pressure plate 2 are at an angle, and the angle is constantly changing. The second connector 22 of the elastic connector structure will generate a tensile force along the length of the pressure plate 2, which acts on the position of the first connector 21. For the first connector with the hinge assembly 5 structure, this tensile force will cause an increase in rotational resistance and rotational wear at the pivot of the hinge assembly 5. Therefore, a pre-deformation groove is opened on the surface of the pressure plate 2 so that the pressure plate 2 deforms appropriately at the pre-deformation groove position to reduce the tensile force borne by the pivot of the hinge assembly 5, thereby reducing the rotational resistance and rotational wear of the hinge assembly 5 and extending the overall service life.

[0113] In addition to the bag-opening clamps disclosed in the above embodiments, this utility model also provides a bag-opening machine that includes any of the above bag-opening clamps. For the structure of other parts of the bag-opening machine, please refer to the prior art, which will not be described in detail here.

[0114] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0115] The pressure plate connection structure, bag opening clamp, and bag opening machine provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A pressure plate connection structure for connecting both ends of a pressure plate (2) to a base plate (1) and a driving part (3) respectively, characterized in that, include: The first connector (21) is disposed at the first end of the pressure plate (2) and is used to hinge the pressure plate (2) to the substrate (1); The second connector (22) is disposed at the second end of the pressure plate (2) and is used to connect the pressure plate (2) to the driving part (3). When the driving part (3) drives the pressure plate (2) to move relative to the substrate (1), the second connector (22) allows the pressure plate (2) to move relative to the driving part (3). The direction of the relative movement is different from the driving direction of the driving part (3).

2. The pressure plate connection structure according to claim 1, characterized in that, The first connector (21) includes a hinge assembly (5), which includes a fixed part (51) and a rotating part (52) that are rotatably mounted relative to each other. The fixing part (51) is fixedly connected to the base plate (1), and the rotating part (52) is fixedly connected to the pressure plate (2).

3. The pressure plate connection structure according to claim 2, characterized in that, The rotating part (52) includes an extension part for passing through the mounting hole of the substrate (1) so that the pressure plate (2) and the fixing part (51) are respectively arranged on different sides of the substrate (1).

4. The pressure plate connection structure according to claim 1, characterized in that, The second connector (22) includes an elastic connector that can be compressed or stretched in a preset direction, which is different from the driving direction of the drive unit (3).

5. A bag-opening clamp, characterized in that, include: The pressure plate connection structure according to any one of claims 1-4; substrate(1); The driving unit (3) has its fixed end fixedly connected to the substrate (1); The pressure plate (2) has its first end connected to the substrate (1) via a first connector (21), and its second end connected to the drive end of the drive unit (3) via a second connector (22).

6. The bag-opening clamp according to claim 5, characterized in that, The first connector (21) includes a hinge assembly (5), which and the pressure plate (2) are arranged on the same side of the base plate (1).

7. The bag-opening clamp according to claim 5, characterized in that, The first connector (21) includes a hinge assembly (5), which includes a fixed part (51) and a rotating part (52) that are rotatably mounted relative to each other. The fixing part (51) is fixedly connected to the base plate (1); The rotating part (52) includes an extension part, which passes through the mounting groove (11) of the substrate (1) and is fixedly connected to the pressure plate (2) so that the pressure plate (2) and the fixing part (51) are respectively arranged on different sides of the substrate (1).

8. The bag-opening clamp according to claim 5, characterized in that, The drive unit (3) includes a drive cylinder (31) and a connecting rod (32); The fixed end of the drive cylinder (31) is fixedly connected to the base plate (1), and the drive end of the drive cylinder (31) is fixedly connected to the connecting rod (32). The connecting rod (32) passes through the through hole on the surface of the substrate (1), and one end of the connecting rod (32) is connected to the pressure plate (2) through the second connecting member (22).

9. The bag-opening clamp according to claim 5, characterized in that, The pressure plate (2) has a long strip-shaped pre-deformation groove on its surface, which is located on the surface of the pressure plate (2) near the position where it is connected to the first connector (21).

10. A bag-opening machine, characterized in that, Includes the bag-opening clamp as described in any one of claims 5-9.

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